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f13e03e625 mk: phase 1 — unify.sx + 48 tests, kit-driven
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lib/minikanren/unify.sx wraps lib/guest/match.sx with a miniKanren-flavoured
cfg: native SX lists as cons-pairs, occurs-check off by default. ~22 lines
of local logic over kit's walk-with / unify-with / extend / occurs-with.

48 tests in lib/minikanren/tests/unify.sx exercise: var fresh-distinct,
walk chains, walk* deep into nested lists, atom/var/list unification with
positional matching, failure modes, opt-in occurs check.
2026-05-07 19:45:47 +00:00
262 changed files with 4873 additions and 34178 deletions

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@@ -1279,7 +1279,7 @@ let run_foundation_tests () =
assert_true "sx_truthy \"\"" (Bool (sx_truthy (String "")));
assert_eq "not truthy nil" (Bool false) (Bool (sx_truthy Nil));
assert_eq "not truthy false" (Bool false) (Bool (sx_truthy (Bool false)));
let l = { l_params = ["x"]; l_body = Symbol "x"; l_closure = Sx_types.make_env (); l_name = None; l_compiled = None; l_call_count = 0 } in
let l = { l_params = ["x"]; l_body = Symbol "x"; l_closure = Sx_types.make_env (); l_name = None; l_compiled = None } in
assert_true "is_lambda" (Bool (Sx_types.is_lambda (Lambda l)));
ignore (Sx_types.set_lambda_name (Lambda l) "my-fn");
assert_eq "lambda name mutated" (String "my-fn") (lambda_name (Lambda l))

View File

@@ -528,183 +528,6 @@ let () =
| [Rational (_, d)] -> Integer d
| [Integer _] -> Integer 1
| _ -> raise (Eval_error "denominator: expected rational or integer"));
(* printf-spec: apply one Tcl/printf format spec to one arg.
spec is like "%5.2f", "%-10s", "%x", "%c", "%d". Always starts with %
and ends with the conversion char. Supports d i u x X o c s f e g.
Coerces arg to the right type per conversion. *)
register "printf-spec" (fun args ->
let spec_str, arg = match args with
| [String s; v] -> (s, v)
| _ -> raise (Eval_error "printf-spec: (spec arg)")
in
let n = String.length spec_str in
if n < 2 || spec_str.[0] <> '%' then
raise (Eval_error ("printf-spec: invalid spec " ^ spec_str));
let type_char = spec_str.[n - 1] in
let to_int v = match v with
| Integer i -> i
| Number f -> int_of_float f
| String s ->
let s = String.trim s in
(try int_of_string s
with _ ->
try int_of_float (float_of_string s)
with _ -> 0)
| Bool true -> 1 | Bool false -> 0
| _ -> 0
in
let to_float v = match v with
| Number f -> f
| Integer i -> float_of_int i
| String s ->
let s = String.trim s in
(try float_of_string s with _ -> 0.0)
| _ -> 0.0
in
let to_string v = match v with
| String s -> s
| Integer i -> string_of_int i
| Number f -> Sx_types.format_number f
| Bool true -> "1" | Bool false -> "0"
| Nil -> ""
| _ -> Sx_types.inspect v
in
try
match type_char with
| 'd' | 'i' ->
let fmt = Scanf.format_from_string spec_str "%d" in
String (Printf.sprintf fmt (to_int arg))
| 'u' ->
let fmt = Scanf.format_from_string spec_str "%u" in
String (Printf.sprintf fmt (to_int arg))
| 'x' ->
let fmt = Scanf.format_from_string spec_str "%x" in
String (Printf.sprintf fmt (to_int arg))
| 'X' ->
let fmt = Scanf.format_from_string spec_str "%X" in
String (Printf.sprintf fmt (to_int arg))
| 'o' ->
let fmt = Scanf.format_from_string spec_str "%o" in
String (Printf.sprintf fmt (to_int arg))
| 'c' ->
let n_val = to_int arg in
let body = String.sub spec_str 0 (n - 1) in
let fmt = Scanf.format_from_string (body ^ "s") "%s" in
String (Printf.sprintf fmt (String.make 1 (Char.chr (n_val land 0xff))))
| 's' ->
let fmt = Scanf.format_from_string spec_str "%s" in
String (Printf.sprintf fmt (to_string arg))
| 'f' ->
let fmt = Scanf.format_from_string spec_str "%f" in
String (Printf.sprintf fmt (to_float arg))
| 'e' ->
let fmt = Scanf.format_from_string spec_str "%e" in
String (Printf.sprintf fmt (to_float arg))
| 'E' ->
let fmt = Scanf.format_from_string spec_str "%E" in
String (Printf.sprintf fmt (to_float arg))
| 'g' ->
let fmt = Scanf.format_from_string spec_str "%g" in
String (Printf.sprintf fmt (to_float arg))
| 'G' ->
let fmt = Scanf.format_from_string spec_str "%G" in
String (Printf.sprintf fmt (to_float arg))
| _ -> raise (Eval_error ("printf-spec: unsupported conversion " ^ String.make 1 type_char))
with
| Eval_error _ as e -> raise e
| _ -> raise (Eval_error ("printf-spec: invalid format " ^ spec_str)));
(* scan-spec: apply one Tcl/scanf format spec to a string.
Returns (consumed-count . parsed-value), or nil on failure. *)
register "scan-spec" (fun args ->
let spec_str, str = match args with
| [String s; String input] -> (s, input)
| _ -> raise (Eval_error "scan-spec: (spec input)")
in
let n = String.length spec_str in
if n < 2 || spec_str.[0] <> '%' then
raise (Eval_error ("scan-spec: invalid spec " ^ spec_str));
let type_char = spec_str.[n - 1] in
let len = String.length str in
(* skip leading whitespace for non-%c/%s conversions *)
let i = ref 0 in
if type_char <> 'c' then
while !i < len && (str.[!i] = ' ' || str.[!i] = '\t' || str.[!i] = '\n') do incr i done;
let start = !i in
try
match type_char with
| 'd' | 'i' ->
let j = ref !i in
if !j < len && (str.[!j] = '-' || str.[!j] = '+') then incr j;
while !j < len && str.[!j] >= '0' && str.[!j] <= '9' do incr j done;
if !j > start && (str.[start] >= '0' && str.[start] <= '9'
|| (!j > start + 1 && (str.[start] = '-' || str.[start] = '+'))) then
let n_val = int_of_string (String.sub str start (!j - start)) in
let d = Hashtbl.create 2 in
Hashtbl.replace d "value" (Integer n_val);
Hashtbl.replace d "consumed" (Integer !j);
Dict d
else Nil
| 'x' | 'X' ->
let j = ref !i in
while !j < len &&
((str.[!j] >= '0' && str.[!j] <= '9') ||
(str.[!j] >= 'a' && str.[!j] <= 'f') ||
(str.[!j] >= 'A' && str.[!j] <= 'F')) do incr j done;
if !j > start then
let n_val = int_of_string ("0x" ^ String.sub str start (!j - start)) in
let d = Hashtbl.create 2 in
Hashtbl.replace d "value" (Integer n_val);
Hashtbl.replace d "consumed" (Integer !j);
Dict d
else Nil
| 'o' ->
let j = ref !i in
while !j < len && str.[!j] >= '0' && str.[!j] <= '7' do incr j done;
if !j > start then
let n_val = int_of_string ("0o" ^ String.sub str start (!j - start)) in
let d = Hashtbl.create 2 in
Hashtbl.replace d "value" (Integer n_val);
Hashtbl.replace d "consumed" (Integer !j);
Dict d
else Nil
| 'f' | 'e' | 'g' ->
let j = ref !i in
if !j < len && (str.[!j] = '-' || str.[!j] = '+') then incr j;
while !j < len && ((str.[!j] >= '0' && str.[!j] <= '9') || str.[!j] = '.') do incr j done;
if !j < len && (str.[!j] = 'e' || str.[!j] = 'E') then begin
incr j;
if !j < len && (str.[!j] = '-' || str.[!j] = '+') then incr j;
while !j < len && str.[!j] >= '0' && str.[!j] <= '9' do incr j done
end;
if !j > start then
let f_val = float_of_string (String.sub str start (!j - start)) in
let d = Hashtbl.create 2 in
Hashtbl.replace d "value" (Number f_val);
Hashtbl.replace d "consumed" (Integer !j);
Dict d
else Nil
| 's' ->
let j = ref !i in
while !j < len && str.[!j] <> ' ' && str.[!j] <> '\t' && str.[!j] <> '\n' do incr j done;
if !j > start then
let d = Hashtbl.create 2 in
Hashtbl.replace d "value" (String (String.sub str start (!j - start)));
Hashtbl.replace d "consumed" (Integer !j);
Dict d
else Nil
| 'c' ->
if !i < len then
let d = Hashtbl.create 2 in
Hashtbl.replace d "value" (Integer (Char.code str.[!i]));
Hashtbl.replace d "consumed" (Integer (!i + 1));
Dict d
else Nil
| _ -> raise (Eval_error ("scan-spec: unsupported conversion " ^ String.make 1 type_char))
with
| Eval_error _ as e -> raise e
| _ -> Nil);
register "parse-int" (fun args ->
let parse_leading_int s =
let len = String.length s in
@@ -3576,204 +3399,6 @@ let () =
Nil
| _ -> raise (Eval_error "channel-set-blocking!: (channel bool)"));
(* === Exec === run an external process; capture stdout *)
register "exec-process" (fun args ->
let items = match args with
| [List xs] | [ListRef { contents = xs }] -> xs
| _ -> raise (Eval_error "exec-process: (cmd-list)")
in
let argv = Array.of_list (List.map (function
| String s -> s
| v -> Sx_types.inspect v
) items) in
if Array.length argv = 0 then raise (Eval_error "exec: empty command");
let (out_r, out_w) = Unix.pipe () in
let (err_r, err_w) = Unix.pipe () in
let pid =
try Unix.create_process argv.(0) argv Unix.stdin out_w err_w
with Unix.Unix_error (e, _, _) ->
Unix.close out_r; Unix.close out_w;
Unix.close err_r; Unix.close err_w;
raise (Eval_error ("exec: " ^ Unix.error_message e))
in
Unix.close out_w;
Unix.close err_w;
let buf = Buffer.create 256 in
let errbuf = Buffer.create 64 in
let chunk = Bytes.create 4096 in
let read_all fd target =
try
let stop = ref false in
while not !stop do
let n = Unix.read fd chunk 0 (Bytes.length chunk) in
if n = 0 then stop := true
else Buffer.add_subbytes target chunk 0 n
done
with _ -> ()
in
read_all out_r buf;
read_all err_r errbuf;
Unix.close out_r;
Unix.close err_r;
let (_, status) = Unix.waitpid [] pid in
let exit_code = match status with
| Unix.WEXITED n -> n
| Unix.WSIGNALED _ | Unix.WSTOPPED _ -> 1
in
let s = Buffer.contents buf in
let trimmed =
if String.length s > 0 && s.[String.length s - 1] = '\n'
then String.sub s 0 (String.length s - 1) else s
in
if exit_code <> 0 then
raise (Eval_error ("exec: child exited " ^ string_of_int exit_code
^ (if Buffer.length errbuf > 0
then ": " ^ Buffer.contents errbuf
else "")))
else String trimmed);
(* exec-pipeline: takes a list of words like Tcl `exec` would receive.
Recognizes `|` as a stage separator and `> file`, `>> file`, `< file`,
`2>@1` (stderr→stdout), `2> file`. Returns trimmed stdout of the last
stage; raises Eval_error if the last stage exits non-zero. *)
register "exec-pipeline" (fun args ->
let items = match args with
| [List xs] | [ListRef { contents = xs }] -> xs
| _ -> raise (Eval_error "exec-pipeline: (word-list)")
in
let words = List.map (function
| String s -> s
| v -> Sx_types.inspect v
) items in
if words = [] then raise (Eval_error "exec: empty command");
let split_stages ws =
let rec loop acc cur = function
| [] -> List.rev (List.rev cur :: acc)
| "|" :: rest -> loop (List.rev cur :: acc) [] rest
| w :: rest -> loop acc (w :: cur) rest
in
loop [] [] ws
in
let extract_redirs ws =
let in_path = ref None in
let out_path = ref None in
let out_append = ref false in
let err_path = ref None in
let merge_err = ref false in
let cleaned = ref [] in
let rec loop = function
| [] -> ()
| "<" :: p :: rest -> in_path := Some p; loop rest
| ">" :: p :: rest -> out_path := Some p; out_append := false; loop rest
| ">>" :: p :: rest -> out_path := Some p; out_append := true; loop rest
| "2>@1" :: rest -> merge_err := true; loop rest
| "2>" :: p :: rest -> err_path := Some p; loop rest
| w :: rest -> cleaned := w :: !cleaned; loop rest
in
loop ws;
(List.rev !cleaned, !in_path, !out_path, !out_append, !err_path, !merge_err)
in
let stages = List.map extract_redirs (split_stages words) in
if stages = [] then raise (Eval_error "exec: no stages");
let n = List.length stages in
let pipes = Array.init (max 0 (n - 1)) (fun _ -> Unix.pipe ()) in
let (final_r, final_w) = Unix.pipe () in
let (errstash_r, errstash_w) = Unix.pipe () in
let pids = ref [] in
let close_safe fd = try Unix.close fd with _ -> () in
let open_in_redir = function
| None -> Unix.stdin
| Some path ->
(try Unix.openfile path [Unix.O_RDONLY] 0o644
with Unix.Unix_error (e, _, _) ->
raise (Eval_error ("exec: open <" ^ path ^ ": " ^ Unix.error_message e)))
in
let open_out_redir path append =
let flags = Unix.O_WRONLY :: Unix.O_CREAT :: (if append then [Unix.O_APPEND] else [Unix.O_TRUNC]) in
try Unix.openfile path flags 0o644
with Unix.Unix_error (e, _, _) ->
raise (Eval_error ("exec: open >" ^ path ^ ": " ^ Unix.error_message e))
in
let stages_arr = Array.of_list stages in
(try
Array.iteri (fun i (cleaned, ip, op, app, ep, merge) ->
if cleaned = [] then raise (Eval_error "exec: empty stage in pipeline");
let argv = Array.of_list cleaned in
let stdin_fd =
if i = 0 then open_in_redir ip
else fst pipes.(i - 1)
in
let stdout_fd =
if i = n - 1 then
(match op with
| None -> final_w
| Some path -> open_out_redir path app)
else snd pipes.(i)
in
let stderr_fd =
if merge then stdout_fd
else (match ep with
| None -> if i = n - 1 then errstash_w else Unix.stderr
| Some path -> open_out_redir path false)
in
let pid =
try Unix.create_process argv.(0) argv stdin_fd stdout_fd stderr_fd
with Unix.Unix_error (e, _, _) ->
raise (Eval_error ("exec: " ^ argv.(0) ^ ": " ^ Unix.error_message e))
in
pids := pid :: !pids;
if i > 0 then close_safe (fst pipes.(i - 1));
if i < n - 1 then close_safe (snd pipes.(i));
if i = 0 && ip <> None then close_safe stdin_fd;
if i = n - 1 && op <> None then close_safe stdout_fd;
if not merge && ep <> None then close_safe stderr_fd
) stages_arr
with e ->
close_safe final_r; close_safe final_w;
close_safe errstash_r; close_safe errstash_w;
Array.iter (fun (a,b) -> close_safe a; close_safe b) pipes;
raise e);
close_safe final_w;
close_safe errstash_w;
let buf = Buffer.create 256 in
let errbuf = Buffer.create 64 in
let chunk = Bytes.create 4096 in
let read_all fd target =
try
let stop = ref false in
while not !stop do
let r = Unix.read fd chunk 0 (Bytes.length chunk) in
if r = 0 then stop := true
else Buffer.add_subbytes target chunk 0 r
done
with _ -> ()
in
read_all final_r buf;
read_all errstash_r errbuf;
close_safe final_r;
close_safe errstash_r;
let exit_codes = List.rev_map (fun pid ->
let (_, st) = Unix.waitpid [] pid in
match st with
| Unix.WEXITED c -> c
| _ -> 1
) !pids in
let final_code = match List.rev exit_codes with
| [] -> 0
| last :: _ -> last
in
let s = Buffer.contents buf in
let trimmed =
if String.length s > 0 && s.[String.length s - 1] = '\n'
then String.sub s 0 (String.length s - 1) else s
in
if final_code <> 0 then
raise (Eval_error ("exec: pipeline last stage exited " ^ string_of_int final_code
^ (if Buffer.length errbuf > 0
then ": " ^ Buffer.contents errbuf
else "")))
else String trimmed);
(* === Sockets === wrapping Unix.socket/connect/bind/listen/accept *)
let resolve_inet_addr host =
if host = "" || host = "0.0.0.0" then Unix.inet_addr_any
@@ -4109,25 +3734,4 @@ let () =
| k :: v :: rest -> ignore (env_bind child (value_to_string k) v); add_bindings rest
| [_] -> raise (Eval_error "env-extend: odd number of key-val pairs") in
add_bindings pairs;
Env child);
(* JIT cache control & observability — backed by refs in sx_types.ml to
avoid creating a sx_primitives → sx_vm dependency cycle. sx_vm reads
these refs to decide when to JIT. *)
register "jit-stats" (fun _args ->
let d = Hashtbl.create 8 in
Hashtbl.replace d "threshold" (Number (float_of_int !Sx_types.jit_threshold));
Hashtbl.replace d "compiled" (Number (float_of_int !Sx_types.jit_compiled_count));
Hashtbl.replace d "compile-failed" (Number (float_of_int !Sx_types.jit_skipped_count));
Hashtbl.replace d "below-threshold" (Number (float_of_int !Sx_types.jit_threshold_skipped_count));
Dict d);
register "jit-set-threshold!" (fun args ->
match args with
| [Number n] -> Sx_types.jit_threshold := int_of_float n; Nil
| [Integer n] -> Sx_types.jit_threshold := n; Nil
| _ -> raise (Eval_error "jit-set-threshold!: (n) where n is integer"));
register "jit-reset-counters!" (fun _args ->
Sx_types.jit_compiled_count := 0;
Sx_types.jit_skipped_count := 0;
Sx_types.jit_threshold_skipped_count := 0;
Nil)
Env child)

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@@ -138,7 +138,6 @@ and lambda = {
l_closure : env;
mutable l_name : string option;
mutable l_compiled : vm_closure option; (** Lazy JIT cache *)
mutable l_call_count : int; (** Tiered-compilation counter — JIT after threshold calls *)
}
and component = {
@@ -450,20 +449,7 @@ let make_lambda params body closure =
| List items -> List.map value_to_string items
| _ -> value_to_string_list params
in
Lambda { l_params = ps; l_body = body; l_closure = unwrap_env_val closure; l_name = None; l_compiled = None; l_call_count = 0 }
(** {1 JIT cache control}
Tiered compilation: only JIT a lambda after it's been called [jit_threshold]
times. This filters out one-shot lambdas (test harness, dynamic eval, REPLs)
so they never enter the JIT cache. Counters are exposed to SX as [(jit-stats)].
These live here (in sx_types) rather than sx_vm so [sx_primitives] can read
them without creating a sx_primitives → sx_vm dependency cycle. *)
let jit_threshold = ref 4
let jit_compiled_count = ref 0
let jit_skipped_count = ref 0
let jit_threshold_skipped_count = ref 0
Lambda { l_params = ps; l_body = body; l_closure = unwrap_env_val closure; l_name = None; l_compiled = None }
let make_component name params has_children body closure affinity =
let n = value_to_string name in

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@@ -57,9 +57,6 @@ let () = Sx_types._convert_vm_suspension := (fun exn ->
let jit_compile_ref : (lambda -> (string, value) Hashtbl.t -> vm_closure option) ref =
ref (fun _ _ -> None)
(* JIT threshold and counters live in Sx_types so primitives can read them
without creating a sx_primitives → sx_vm dependency cycle. *)
(** Sentinel closure indicating JIT compilation was attempted and failed.
Prevents retrying compilation on every call. *)
let jit_failed_sentinel = {
@@ -367,21 +364,13 @@ and vm_call vm f args =
| None ->
if l.l_name <> None
then begin
l.l_call_count <- l.l_call_count + 1;
if l.l_call_count >= !Sx_types.jit_threshold then begin
l.l_compiled <- Some jit_failed_sentinel;
match !jit_compile_ref l vm.globals with
| Some cl ->
incr Sx_types.jit_compiled_count;
l.l_compiled <- Some cl;
push_closure_frame vm cl args
| None ->
incr Sx_types.jit_skipped_count;
push vm (cek_call_or_suspend vm f (List args))
end else begin
incr Sx_types.jit_threshold_skipped_count;
l.l_compiled <- Some jit_failed_sentinel;
match !jit_compile_ref l vm.globals with
| Some cl ->
l.l_compiled <- Some cl;
push_closure_frame vm cl args
| None ->
push vm (cek_call_or_suspend vm f (List args))
end
end
else
push vm (cek_call_or_suspend vm f (List args)))

View File

@@ -25,9 +25,8 @@
; Glyph classification sets
; ============================================================
(define
apl-parse-op-glyphs
(list "/" "⌿" "\\" "⍀" "¨" "⍨" "∘" "." "⍣" "⍤" "⍥" "@"))
(define apl-parse-op-glyphs
(list "/" "\\" "¨" "⍨" "∘" "." "⍣" "⍤" "⍥" "@"))
(define
apl-parse-fn-glyphs
@@ -83,48 +82,22 @@
"⍎"
"⍕"))
(define apl-quad-fn-names (list "⎕FMT" "⎕←"))
(define apl-quad-fn-names (list "⎕FMT"))
(define apl-known-fn-names (list))
(define
apl-parse-op-glyph?
(fn (v) (some (fn (g) (= g v)) apl-parse-op-glyphs)))
; ============================================================
; Token accessors
; ============================================================
(define
apl-collect-fn-bindings
(fn
(stmt-groups)
(set! apl-known-fn-names (list))
(for-each
(fn
(toks)
(when
(and
(>= (len toks) 3)
(= (tok-type (nth toks 0)) :name)
(= (tok-type (nth toks 1)) :assign)
(= (tok-type (nth toks 2)) :lbrace))
(set!
apl-known-fn-names
(cons (tok-val (nth toks 0)) apl-known-fn-names))))
stmt-groups)))
(define
apl-parse-op-glyph?
(fn (v) (some (fn (g) (= g v)) apl-parse-op-glyphs)))
(define
apl-parse-fn-glyph?
(fn (v) (some (fn (g) (= g v)) apl-parse-fn-glyphs)))
(define tok-type (fn (tok) (get tok :type)))
; ============================================================
; Collect trailing operators starting at index i
; Returns {:ops (op ...) :end new-i}
; ============================================================
(define tok-val (fn (tok) (get tok :value)))
(define
@@ -134,8 +107,8 @@
(and (= (tok-type tok) :glyph) (apl-parse-op-glyph? (tok-val tok)))))
; ============================================================
; Build a derived-fn node by chaining operators left-to-right
; (+/¨ → (:derived-fn "¨" (:derived-fn "/" (:fn-glyph "+"))))
; Collect trailing operators starting at index i
; Returns {:ops (op ...) :end new-i}
; ============================================================
(define
@@ -146,17 +119,15 @@
(and (= (tok-type tok) :glyph) (apl-parse-fn-glyph? (tok-val tok)))
(and
(= (tok-type tok) :name)
(or
(some (fn (q) (= q (tok-val tok))) apl-quad-fn-names)
(some (fn (q) (= q (tok-val tok))) apl-known-fn-names))))))
; ============================================================
; Find matching close bracket/paren/brace
; Returns the index of the matching close token
; ============================================================
(some (fn (q) (= q (tok-val tok))) apl-quad-fn-names)))))
(define collect-ops (fn (tokens i) (collect-ops-loop tokens i (list))))
; ============================================================
; Build a derived-fn node by chaining operators left-to-right
; (+/¨ → (:derived-fn "¨" (:derived-fn "/" (:fn-glyph "+"))))
; ============================================================
(define
collect-ops-loop
(fn
@@ -172,10 +143,8 @@
{:end i :ops acc})))))
; ============================================================
; Segment collection: scan tokens left-to-right, building
; a list of {:kind "val"/"fn" :node ast} segments.
; Operators following function glyphs are merged into
; derived-fn nodes during this pass.
; Find matching close bracket/paren/brace
; Returns the index of the matching close token
; ============================================================
(define
@@ -194,20 +163,12 @@
(find-matching-close-loop tokens start open-type close-type 1)))
; ============================================================
; Build tree from segment list
;
; The segments are in left-to-right order.
; APL evaluates right-to-left, so the LEFTMOST function is
; the outermost (last-evaluated) node.
;
; Patterns:
; [val] → val node
; [fn val ...] → (:monad fn (build-tree rest))
; [val fn val ...] → (:dyad fn val (build-tree rest))
; [val val ...] → (:vec val1 val2 ...) — strand
; Segment collection: scan tokens left-to-right, building
; a list of {:kind "val"/"fn" :node ast} segments.
; Operators following function glyphs are merged into
; derived-fn nodes during this pass.
; ============================================================
; Find the index of the first function segment (returns -1 if none)
(define
find-matching-close-loop
(fn
@@ -247,9 +208,21 @@
collect-segments
(fn (tokens) (collect-segments-loop tokens 0 (list))))
; Build an array node from 0..n value segments
; If n=1 → return that segment's node
; If n>1 → return (:vec node1 node2 ...)
; ============================================================
; Build tree from segment list
;
; The segments are in left-to-right order.
; APL evaluates right-to-left, so the LEFTMOST function is
; the outermost (last-evaluated) node.
;
; Patterns:
; [val] → val node
; [fn val ...] → (:monad fn (build-tree rest))
; [val fn val ...] → (:dyad fn val (build-tree rest))
; [val val ...] → (:vec val1 val2 ...) — strand
; ============================================================
; Find the index of the first function segment (returns -1 if none)
(define
collect-segments-loop
(fn
@@ -269,47 +242,24 @@
((= tt :str)
(collect-segments-loop tokens (+ i 1) (append acc {:kind "val" :node (list :str tv)})))
((= tt :name)
(cond
((and (< (+ i 1) (len tokens)) (= (tok-type (nth tokens (+ i 1))) :assign))
(if
(some (fn (q) (= q tv)) apl-quad-fn-names)
(let
((op-result (collect-ops tokens (+ i 1))))
(let
((rhs-tokens (slice tokens (+ i 2) (len tokens))))
((ops (get op-result :ops)) (ni (get op-result :end)))
(let
((rhs-expr (parse-apl-expr rhs-tokens)))
((fn-node (build-derived-fn (list :fn-glyph tv) ops)))
(collect-segments-loop
tokens
(len tokens)
(append acc {:kind "val" :node (list :assign-expr tv rhs-expr)})))))
((some (fn (q) (= q tv)) apl-quad-fn-names)
(let
((op-result (collect-ops tokens (+ i 1))))
(let
((ops (get op-result :ops))
(ni (get op-result :end)))
(let
((fn-node (build-derived-fn (list :fn-glyph tv) ops)))
(collect-segments-loop
tokens
ni
(append acc {:kind "fn" :node fn-node}))))))
((some (fn (q) (= q tv)) apl-known-fn-names)
(let
((op-result (collect-ops tokens (+ i 1))))
(let
((ops (get op-result :ops))
(ni (get op-result :end)))
(let
((fn-node (build-derived-fn (list :fn-name tv) ops)))
(collect-segments-loop
tokens
ni
(append acc {:kind "fn" :node fn-node}))))))
(else
(let
((br (maybe-bracket (list :name tv) tokens (+ i 1))))
(collect-segments-loop
tokens
(nth br 1)
(append acc {:kind "val" :node (nth br 0)}))))))
ni
(append acc {:kind "fn" :node fn-node})))))
(let
((br (maybe-bracket (list :name tv) tokens (+ i 1))))
(collect-segments-loop
tokens
(nth br 1)
(append acc {:kind "val" :node (nth br 0)})))))
((= tt :lparen)
(let
((end (find-matching-close tokens (+ i 1) :lparen :rparen)))
@@ -317,23 +267,11 @@
((inner-tokens (slice tokens (+ i 1) end))
(after (+ end 1)))
(let
((inner-segs (collect-segments inner-tokens)))
(if
(and
(>= (len inner-segs) 2)
(every? (fn (s) (= (get s :kind) "fn")) inner-segs))
(let
((train-node (cons :train (map (fn (s) (get s :node)) inner-segs))))
(collect-segments-loop
tokens
after
(append acc {:kind "fn" :node train-node})))
(let
((br (maybe-bracket (parse-apl-expr inner-tokens) tokens after)))
(collect-segments-loop
tokens
(nth br 1)
(append acc {:kind "val" :node (nth br 0)}))))))))
((br (maybe-bracket (parse-apl-expr inner-tokens) tokens after)))
(collect-segments-loop
tokens
(nth br 1)
(append acc {:kind "val" :node (nth br 0)}))))))
((= tt :lbrace)
(let
((end (find-matching-close tokens (+ i 1) :lbrace :rbrace)))
@@ -344,22 +282,10 @@
((= tt :glyph)
(cond
((or (= tv "") (= tv "⍵"))
(if
(and
(< (+ i 1) (len tokens))
(= (tok-type (nth tokens (+ i 1))) :assign))
(let
((rhs-tokens (slice tokens (+ i 2) (len tokens))))
(let
((rhs-expr (parse-apl-expr rhs-tokens)))
(collect-segments-loop
tokens
(len tokens)
(append acc {:kind "val" :node (list :assign-expr tv rhs-expr)}))))
(collect-segments-loop
tokens
(+ i 1)
(append acc {:kind "val" :node (list :name tv)}))))
(collect-segments-loop
tokens
(+ i 1)
(append acc {:kind "val" :node (list :name tv)})))
((= tv "∇")
(collect-segments-loop
tokens
@@ -414,24 +340,15 @@
ni
(append acc {:kind "fn" :node fn-node})))))))
((apl-parse-op-glyph? tv)
(if
(or (= tv "/") (= tv "⌿") (= tv "\\") (= tv "⍀"))
(collect-segments-loop
tokens
(+ i 1)
(append acc {:kind "fn" :node (list :fn-glyph tv)}))
(collect-segments-loop tokens (+ i 1) acc)))
(collect-segments-loop tokens (+ i 1) acc))
(true (collect-segments-loop tokens (+ i 1) acc))))
(true (collect-segments-loop tokens (+ i 1) acc))))))))
(define find-first-fn (fn (segs) (find-first-fn-loop segs 0)))
; ============================================================
; Split token list on statement separators (diamond / newline)
; Only splits at depth 0 (ignores separators inside { } or ( ) )
; ============================================================
; Build an array node from 0..n value segments
; If n=1 → return that segment's node
; If n>1 → return (:vec node1 node2 ...)
(define
find-first-fn-loop
(fn
@@ -453,9 +370,10 @@
(get (first segs) :node)
(cons :vec (map (fn (s) (get s :node)) segs)))))
; ============================================================
; Parse a dfn body (tokens between { and })
; Handles guard expressions: cond : expr
; Split token list on statement separators (diamond / newline)
; Only splits at depth 0 (ignores separators inside { } or ( ) )
; ============================================================
(define
@@ -490,6 +408,11 @@
split-statements
(fn (tokens) (split-statements-loop tokens (list) (list) 0)))
; ============================================================
; Parse a dfn body (tokens between { and })
; Handles guard expressions: cond : expr
; ============================================================
(define
split-statements-loop
(fn
@@ -544,10 +467,6 @@
((stmt-groups (split-statements tokens)))
(let ((stmts (map parse-dfn-stmt stmt-groups))) (cons :dfn stmts)))))
; ============================================================
; Parse a single statement (assignment or expression)
; ============================================================
(define
parse-dfn-stmt
(fn
@@ -564,17 +483,12 @@
(parse-apl-expr body-tokens)))
(parse-stmt tokens)))))
; ============================================================
; Parse an expression from a flat token list
; ============================================================
(define
find-top-level-colon
(fn (tokens i) (find-top-level-colon-loop tokens i 0)))
; ============================================================
; Main entry point
; parse-apl: string → AST
; Parse a single statement (assignment or expression)
; ============================================================
(define
@@ -594,6 +508,10 @@
((and (= tt :colon) (= depth 0)) i)
(true (find-top-level-colon-loop tokens (+ i 1) depth)))))))
; ============================================================
; Parse an expression from a flat token list
; ============================================================
(define
parse-stmt
(fn
@@ -608,6 +526,11 @@
(parse-apl-expr (slice tokens 2)))
(parse-apl-expr tokens))))
; ============================================================
; Main entry point
; parse-apl: string → AST
; ============================================================
(define
parse-apl-expr
(fn
@@ -624,52 +547,13 @@
((tokens (apl-tokenize src)))
(let
((stmt-groups (split-statements tokens)))
(begin
(apl-collect-fn-bindings stmt-groups)
(if
(= (len stmt-groups) 0)
nil
(if
(= (len stmt-groups) 0)
nil
(if
(= (len stmt-groups) 1)
(parse-stmt (first stmt-groups))
(cons :program (map parse-stmt stmt-groups)))))))))
(define
split-bracket-loop
(fn
(tokens current acc depth)
(if
(= (len tokens) 0)
(append acc (list current))
(let
((tok (first tokens)) (more (rest tokens)))
(let
((tt (tok-type tok)))
(cond
((or (= tt :lparen) (= tt :lbrace) (= tt :lbracket))
(split-bracket-loop
more
(append current (list tok))
acc
(+ depth 1)))
((or (= tt :rparen) (= tt :rbrace) (= tt :rbracket))
(split-bracket-loop
more
(append current (list tok))
acc
(- depth 1)))
((and (= tt :semi) (= depth 0))
(split-bracket-loop
more
(list)
(append acc (list current))
depth))
(else
(split-bracket-loop more (append current (list tok)) acc depth))))))))
(define
split-bracket-content
(fn (tokens) (split-bracket-loop tokens (list) (list) 0)))
(= (len stmt-groups) 1)
(parse-stmt (first stmt-groups))
(cons :program (map parse-stmt stmt-groups))))))))
(define
maybe-bracket
@@ -685,17 +569,8 @@
((inner-tokens (slice tokens (+ after 1) end))
(next-after (+ end 1)))
(let
((sections (split-bracket-content inner-tokens)))
(if
(= (len sections) 1)
(let
((idx-expr (parse-apl-expr inner-tokens)))
(let
((indexed (list :dyad (list :fn-glyph "⌷") idx-expr val-node)))
(maybe-bracket indexed tokens next-after)))
(let
((axis-exprs (map (fn (toks) (if (= (len toks) 0) :all (parse-apl-expr toks))) sections)))
(let
((indexed (cons :bracket (cons val-node axis-exprs))))
(maybe-bracket indexed tokens next-after)))))))
((idx-expr (parse-apl-expr inner-tokens)))
(let
((indexed (list :dyad (list :fn-glyph "⌷") idx-expr val-node)))
(maybe-bracket indexed tokens next-after)))))
(list val-node after))))

View File

@@ -808,25 +808,6 @@
((picked (map (fn (i) (nth arr-ravel i)) kept)))
(make-array (list (len picked)) picked))))))
(define
apl-compress-first
(fn
(mask arr)
(let
((mask-ravel (get mask :ravel))
(shape (get arr :shape))
(ravel (get arr :ravel)))
(if
(< (len shape) 2)
(apl-compress mask arr)
(let
((rows (first shape)) (cols (last shape)))
(let
((kept-rows (filter (fn (i) (not (= 0 (nth mask-ravel i)))) (range 0 rows))))
(let
((new-ravel (reduce (fn (acc r) (append acc (map (fn (j) (nth ravel (+ (* r cols) j))) (range 0 cols)))) (list) kept-rows)))
(make-array (cons (len kept-rows) (rest shape)) new-ravel))))))))
(define
apl-primes
(fn
@@ -902,7 +883,7 @@
(let
((sub (apl-permutations (- n 1))))
(reduce
(fn (acc p) (append (apl-insert-everywhere n p) acc))
(fn (acc p) (append acc (apl-insert-everywhere n p)))
(list)
sub)))))
@@ -1004,60 +985,6 @@
(some (fn (c) (= c 0)) codes)
(some (fn (c) (= c (nth e 1))) codes)))))
(define apl-rng-state 12345)
(define apl-rng-seed! (fn (s) (set! apl-rng-state s)))
(define
apl-rng-next!
(fn
()
(begin
(set!
apl-rng-state
(mod (+ (* apl-rng-state 1103515245) 12345) 2147483648))
apl-rng-state)))
(define
apl-roll
(fn
(arr)
(let
((n (if (scalar? arr) (first (get arr :ravel)) (first (get arr :ravel)))))
(apl-scalar (+ apl-io (mod (apl-rng-next!) n))))))
(define
apl-cartesian
(fn
(lists)
(if
(= (len lists) 0)
(list (list))
(let
((rest-prods (apl-cartesian (rest lists))))
(reduce
(fn (acc x) (append acc (map (fn (p) (cons x p)) rest-prods)))
(list)
(first lists))))))
(define
apl-bracket-multi
(fn
(axes arr)
(let
((shape (get arr :shape)) (ravel (get arr :ravel)))
(let
((rank (len shape)) (strides (apl-strides shape)))
(let
((axis-info (map (fn (i) (let ((a (nth axes i))) (cond ((= a nil) {:idxs (range 0 (nth shape i)) :scalar? false}) ((= (len (get a :shape)) 0) {:idxs (list (- (first (get a :ravel)) apl-io)) :scalar? true}) (else {:idxs (map (fn (x) (- x apl-io)) (get a :ravel)) :scalar? false})))) (range 0 rank))))
(let
((cells (apl-cartesian (map (fn (a) (get a :idxs)) axis-info))))
(let
((result-ravel (map (fn (cell) (let ((flat (reduce + 0 (map (fn (i) (* (nth cell i) (nth strides i))) (range 0 rank))))) (nth ravel flat))) cells)))
(let
((result-shape (filter (fn (x) (>= x 0)) (map (fn (i) (let ((a (nth axis-info i))) (if (get a :scalar?) -1 (len (get a :idxs))))) (range 0 rank)))))
(make-array result-shape result-ravel)))))))))
(define
apl-reduce
(fn

View File

@@ -39,7 +39,6 @@ cat > "$TMPFILE" << 'EPOCHS'
(load "lib/apl/tests/idioms.sx")
(load "lib/apl/tests/eval-ops.sx")
(load "lib/apl/tests/pipeline.sx")
(load "lib/apl/tests/programs-e2e.sx")
(epoch 4)
(eval "(list apl-test-pass apl-test-fail)")
EPOCHS

View File

@@ -178,280 +178,3 @@
"apl-run \"(5)[3] × 7\" → 21"
(mkrv (apl-run "(5)[3] × 7"))
(list 21))
(apl-test "decimal: 3.7 → 3.7" (mkrv (apl-run "3.7")) (list 3.7))
(apl-test "decimal: ¯2.5 → -2.5" (mkrv (apl-run "¯2.5")) (list -2.5))
(apl-test "decimal: 1.5 + 2.5 → 4" (mkrv (apl-run "1.5 + 2.5")) (list 4))
(apl-test "decimal: ⌊3.7 → 3" (mkrv (apl-run "⌊ 3.7")) (list 3))
(apl-test "decimal: ⌈3.7 → 4" (mkrv (apl-run "⌈ 3.7")) (list 4))
(apl-test
"⎕← scalar passthrough"
(mkrv (apl-run "⎕← 42"))
(list 42))
(apl-test
"⎕← vector passthrough"
(mkrv (apl-run "⎕← 1 2 3"))
(list 1 2 3))
(apl-test
"string: 'abc' → 3-char vector"
(mkrv (apl-run "'abc'"))
(list "a" "b" "c"))
(apl-test "string: 'a' is rank-0 scalar" (mksh (apl-run "'a'")) (list))
(apl-test "string: 'hello' shape (5)" (mksh (apl-run "'hello'")) (list 5))
(apl-test
"named-fn: f ← {+⍵} ⋄ 3 f 4 → 7"
(mkrv (apl-run "f ← {+⍵} ⋄ 3 f 4"))
(list 7))
(apl-test
"named-fn monadic: sq ← {⍵×⍵} ⋄ sq 7 → 49"
(mkrv (apl-run "sq ← {⍵×⍵} ⋄ sq 7"))
(list 49))
(apl-test
"named-fn dyadic: hyp ← {((×)+⍵×⍵)} ⋄ 3 hyp 4 → 25"
(mkrv (apl-run "hyp ← {((×)+⍵×⍵)} ⋄ 3 hyp 4"))
(list 25))
(apl-test
"named-fn: dbl ← {⍵+⍵} ⋄ dbl 5"
(mkrv (apl-run "dbl ← {⍵+⍵} ⋄ dbl 5"))
(list 2 4 6 8 10))
(apl-test
"named-fn factorial via ∇ recursion"
(mkrv (apl-run "fact ← {0=⍵:1 ⋄ ⍵×∇⍵-1} ⋄ fact 5"))
(list 120))
(apl-test
"named-fn used twice in expr: dbl ← {⍵+⍵} ⋄ (dbl 3) + dbl 4"
(mkrv (apl-run "dbl ← {⍵+⍵} ⋄ (dbl 3) + dbl 4"))
(list 14))
(apl-test
"named-fn with vector arg: neg ← {-⍵} ⋄ neg 1 2 3"
(mkrv (apl-run "neg ← {-⍵} ⋄ neg 1 2 3"))
(list -1 -2 -3))
(apl-test
"multi-axis: M[2;2] → center"
(mkrv (apl-run "M ← (3 3) 9 ⋄ M[2;2]"))
(list 5))
(apl-test
"multi-axis: M[1;] → first row"
(mkrv (apl-run "M ← (3 3) 9 ⋄ M[1;]"))
(list 1 2 3))
(apl-test
"multi-axis: M[;2] → second column"
(mkrv (apl-run "M ← (3 3) 9 ⋄ M[;2]"))
(list 2 5 8))
(apl-test
"multi-axis: M[1 2;1 2] → 2x2 block"
(mkrv (apl-run "M ← (2 3) 6 ⋄ M[1 2;1 2]"))
(list 1 2 4 5))
(apl-test
"multi-axis: M[1 2;1 2] shape (2 2)"
(mksh (apl-run "M ← (2 3) 6 ⋄ M[1 2;1 2]"))
(list 2 2))
(apl-test
"multi-axis: M[;] full matrix"
(mkrv (apl-run "M ← (2 2) 10 20 30 40 ⋄ M[;]"))
(list 10 20 30 40))
(apl-test
"multi-axis: M[1;] shape collapsed"
(mksh (apl-run "M ← (3 3) 9 ⋄ M[1;]"))
(list 3))
(apl-test
"multi-axis: select all rows of column 3"
(mkrv (apl-run "M ← (4 3) 1 2 3 4 5 6 7 8 9 10 11 12 ⋄ M[;3]"))
(list 3 6 9 12))
(apl-test
"train: mean = (+/÷≢) on 1..5"
(mkrv (apl-run "(+/÷≢) 1 2 3 4 5"))
(list 3))
(apl-test
"train: mean of 2 4 6 8 10"
(mkrv (apl-run "(+/÷≢) 2 4 6 8 10"))
(list 6))
(apl-test
"train 2-atop: (- ⌊) 5 → -5"
(mkrv (apl-run "(- ⌊) 5"))
(list -5))
(apl-test
"train 3-fork dyadic: 2(+×-)5 → -21"
(mkrv (apl-run "2 (+ × -) 5"))
(list -21))
(apl-test
"train: range = (⌈/-⌊/) on vector"
(mkrv (apl-run "(⌈/-⌊/) 3 1 4 1 5 9 2 6"))
(list 8))
(apl-test
"train: mean of 10 has shape ()"
(mksh (apl-run "(+/÷≢) 10"))
(list))
(apl-test
"compress: 1 0 1 0 1 / 10 20 30 40 50"
(mkrv (apl-run "1 0 1 0 1 / 10 20 30 40 50"))
(list 10 30 50))
(apl-test
"compress: empty mask → empty"
(mkrv (apl-run "0 0 0 / 1 2 3"))
(list))
(apl-test
"primes via classic idiom (multi-stmt)"
(mkrv (apl-run "P ← 30 ⋄ (2 = +⌿ 0 = P ∘.| P) / P"))
(list 2 3 5 7 11 13 17 19 23 29))
(apl-test
"primes via classic idiom (n=20)"
(mkrv (apl-run "P ← 20 ⋄ (2 = +⌿ 0 = P ∘.| P) / P"))
(list 2 3 5 7 11 13 17 19))
(apl-test
"compress: filter even values"
(mkrv (apl-run "(0 = 2 | 1 2 3 4 5 6) / 1 2 3 4 5 6"))
(list 2 4 6))
(apl-test "inline-assign: x ← 5" (mkrv (apl-run "x ← 5")) (list 5))
(apl-test
"inline-assign: (2×x) + x←10 → 30"
(mkrv (apl-run "(2 × x) + x ← 10"))
(list 30))
(apl-test
"inline-assign primes one-liner: (2=+⌿0=a∘.|a)/a←30"
(mkrv (apl-run "(2 = +⌿ 0 = a ∘.| a) / a ← 30"))
(list 2 3 5 7 11 13 17 19 23 29))
(apl-test
"inline-assign: x is reusable — x + x ← 7 → 14"
(mkrv (apl-run "x + x ← 7"))
(list 14))
(apl-test
"inline-assign in dfn: f ← {x + x ← ⍵} ⋄ f 8 → 16"
(mkrv (apl-run "f ← {x + x ← ⍵} ⋄ f 8"))
(list 16))
(begin (apl-rng-seed! 42) nil)
(apl-test
"?10 with seed 42 → 8 (deterministic)"
(mkrv (apl-run "?10"))
(list 8))
(apl-test "?10 next call → 5" (mkrv (apl-run "?10")) (list 5))
(apl-test
"?100 stays in range"
(let ((v (first (mkrv (apl-run "?100"))))) (and (>= v 1) (<= v 100)))
true)
(begin (apl-rng-seed! 42) nil)
(apl-test
"?10 with re-seed 42 → 8 (reproducible)"
(mkrv (apl-run "?10"))
(list 8))
(apl-test
"apl-run-file: load primes.apl returns dfn AST"
(first (apl-run-file "lib/apl/tests/programs/primes.apl"))
:dfn)
(apl-test
"apl-run-file: life.apl parses without error"
(first (apl-run-file "lib/apl/tests/programs/life.apl"))
:dfn)
(apl-test
"apl-run-file: quicksort.apl parses without error"
(first (apl-run-file "lib/apl/tests/programs/quicksort.apl"))
:dfn)
(apl-test
"apl-run-file: source-then-call returns primes count"
(mksh
(apl-run
(str (file-read "lib/apl/tests/programs/primes.apl") " ⋄ primes 30")))
(list 10))
(apl-test
"primes one-liner with ⍵-rebind: primes 30"
(mkrv
(apl-run "primes ← {(2=+⌿0=⍵∘.|⍵)/⍵←⍳⍵} ⋄ primes 30"))
(list 2 3 5 7 11 13 17 19 23 29))
(apl-test
"primes one-liner: primes 50"
(mkrv
(apl-run "primes ← {(2=+⌿0=⍵∘.|⍵)/⍵←⍳⍵} ⋄ primes 50"))
(list 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47))
(apl-test
"primes.apl loaded + called via apl-run-file"
(mkrv
(apl-run
(str (file-read "lib/apl/tests/programs/primes.apl") " ⋄ primes 20")))
(list 2 3 5 7 11 13 17 19))
(apl-test
"primes.apl loaded — count of primes ≤ 100"
(first
(mksh
(apl-run
(str
(file-read "lib/apl/tests/programs/primes.apl")
" ⋄ primes 100"))))
25)
(apl-test
"⍉ monadic transpose 2x3 → 3x2"
(mkrv (apl-run "⍉ (2 3) 6"))
(list 1 4 2 5 3 6))
(apl-test
"⍉ transpose shape (3 2)"
(mksh (apl-run "⍉ (2 3) 6"))
(list 3 2))
(apl-test "⊢ monadic identity" (mkrv (apl-run "⊢ 1 2 3")) (list 1 2 3))
(apl-test
"5 ⊣ 1 2 3 → 5 (left)"
(mkrv (apl-run "5 ⊣ 1 2 3"))
(list 5))
(apl-test
"5 ⊢ 1 2 3 → 1 2 3 (right)"
(mkrv (apl-run "5 ⊢ 1 2 3"))
(list 1 2 3))
(apl-test "⍕ 42 → \"42\" (alias for ⎕FMT)" (apl-run "⍕ 42") "42")

View File

@@ -1,96 +0,0 @@
; End-to-end tests of the classic-program archetypes — running APL
; source through the full pipeline (tokenize → parse → eval-ast → runtime).
;
; These mirror the algorithms documented in lib/apl/tests/programs/*.apl
; but use forms our pipeline supports today (named functions instead of
; the inline ⍵← rebinding idiom; multi-stmt over single one-liners).
(define mkrv (fn (arr) (get arr :ravel)))
(define mksh (fn (arr) (get arr :shape)))
; ---------- factorial via ∇ recursion (cf. n-queens style) ----------
(apl-test
"e2e: factorial 5! = 120"
(mkrv (apl-run "fact ← {0=⍵:1 ⋄ ⍵×∇⍵-1} ⋄ fact 5"))
(list 120))
(apl-test
"e2e: factorial 7! = 5040"
(mkrv (apl-run "fact ← {0=⍵:1 ⋄ ⍵×∇⍵-1} ⋄ fact 7"))
(list 5040))
(apl-test
"e2e: factorial via ×/N (no recursion)"
(mkrv (apl-run "fact ← {×/⍳⍵} ⋄ fact 6"))
(list 720))
; ---------- sum / triangular numbers (sum-1..N) ----------
(apl-test
"e2e: triangular(10) = 55"
(mkrv (apl-run "tri ← {+/⍳⍵} ⋄ tri 10"))
(list 55))
(apl-test
"e2e: triangular(100) = 5050"
(mkrv (apl-run "tri ← {+/⍳⍵} ⋄ tri 100"))
(list 5050))
; ---------- sum of squares ----------
(apl-test
"e2e: sum-of-squares 1..5 = 55"
(mkrv (apl-run "ss ← {+/⍵×⍵} ⋄ ss 5"))
(list 55))
(apl-test
"e2e: sum-of-squares 1..10 = 385"
(mkrv (apl-run "ss ← {+/⍵×⍵} ⋄ ss 10"))
(list 385))
; ---------- divisor-counting (prime-sieve building blocks) ----------
(apl-test
"e2e: divisor counts 1..5 via outer mod"
(mkrv (apl-run "P ← 5 ⋄ +⌿ 0 = P ∘.| P"))
(list 1 2 2 3 2))
(apl-test
"e2e: divisor counts 1..10"
(mkrv (apl-run "P ← 10 ⋄ +⌿ 0 = P ∘.| P"))
(list 1 2 2 3 2 4 2 4 3 4))
(apl-test
"e2e: prime-mask 1..10 (count==2)"
(mkrv (apl-run "P ← 10 ⋄ 2 = +⌿ 0 = P ∘.| P"))
(list 0 1 1 0 1 0 1 0 0 0))
; ---------- monadic primitives chained ----------
(apl-test
"e2e: sum of |abs| = 15"
(mkrv (apl-run "+/|¯1 ¯2 ¯3 ¯4 ¯5"))
(list 15))
(apl-test
"e2e: max of squares 1..6"
(mkrv (apl-run "⌈/(6)×6"))
(list 36))
; ---------- nested named functions ----------
(apl-test
"e2e: compose dbl and sq via two named fns"
(mkrv (apl-run "dbl ← {⍵+⍵} ⋄ sq ← {⍵×⍵} ⋄ sq dbl 3"))
(list 36))
(apl-test
"e2e: max-of-two as named dyadic fn"
(mkrv (apl-run "mx ← {⍺⌈⍵} ⋄ 5 mx 3"))
(list 5))
(apl-test
"e2e: sqrt-via-newton 1 step from 1 → 2.5"
(mkrv (apl-run "step ← {(⍵+⍺÷⍵)÷2} ⋄ 4 step 1"))
(list 2.5))

View File

@@ -2,7 +2,7 @@
(list "+" "-" "×" "÷" "*" "⍟" "⌈" "⌊" "|" "!" "?" "○" "~" "<" "≤" "=" "≥" ">" "≠"
"≢" "≡" "∊" "∧" "" "⍱" "⍲" "," "⍪" "" "⌽" "⊖" "⍉" "↑" "↓" "⊂" "⊃" "⊆"
"" "∩" "" "⍸" "⌷" "⍋" "⍒" "⊥" "" "⊣" "⊢" "⍎" "⍕"
"" "⍵" "∇" "/" "⌿" "\\" "⍀" "¨" "⍨" "∘" "." "⍣" "⍤" "⍥" "@" "¯"))
"" "⍵" "∇" "/" "\\" "¨" "⍨" "∘" "." "⍣" "⍤" "⍥" "@" "¯"))
(define apl-glyph?
(fn (ch)
@@ -138,22 +138,12 @@
(begin
(consume! "¯")
(let ((digits (read-digits! "")))
(if (and (< pos src-len) (= (cur-byte) ".")
(< (+ pos 1) src-len) (apl-digit? (nth source (+ pos 1))))
(begin (advance!)
(let ((frac (read-digits! "")))
(tok-push! :num (- 0 (string->number (str digits "." frac))))))
(tok-push! :num (- 0 (parse-int digits 0)))))
(tok-push! :num (- 0 (parse-int digits 0))))
(scan!)))
((apl-digit? ch)
(begin
(let ((digits (read-digits! "")))
(if (and (< pos src-len) (= (cur-byte) ".")
(< (+ pos 1) src-len) (apl-digit? (nth source (+ pos 1))))
(begin (advance!)
(let ((frac (read-digits! "")))
(tok-push! :num (string->number (str digits "." frac)))))
(tok-push! :num (parse-int digits 0))))
(tok-push! :num (parse-int digits 0)))
(scan!)))
((= ch "'")
(begin
@@ -165,9 +155,7 @@
(let ((start pos))
(begin
(if (cur-sw? "⎕") (consume! "⎕") (advance!))
(if (and (< pos src-len) (cur-sw? "←"))
(consume! "←")
(read-ident-cont!))
(read-ident-cont!)
(tok-push! :name (slice source start pos))
(scan!))))
(true

View File

@@ -39,13 +39,7 @@
((= g "⊖") apl-reverse-first)
((= g "⍋") apl-grade-up)
((= g "⍒") apl-grade-down)
((= g "?") apl-roll)
((= g "⍉") apl-transpose)
((= g "⊢") (fn (a) a))
((= g "⊣") (fn (a) a))
((= g "⍕") apl-quad-fmt)
((= g "⎕FMT") apl-quad-fmt)
((= g "⎕←") apl-quad-print)
(else (error "no monadic fn for glyph")))))
(define
@@ -85,11 +79,6 @@
((= g "∊") apl-member)
((= g "") apl-index-of)
((= g "~") apl-without)
((= g "/") apl-compress)
((= g "⌿") apl-compress-first)
((= g "⍉") apl-transpose-dyadic)
((= g "⊢") (fn (a b) b))
((= g "⊣") (fn (a b) a))
(else (error "no dyadic fn for glyph")))))
(define
@@ -108,15 +97,6 @@
((tag (first node)))
(cond
((= tag :num) (apl-scalar (nth node 1)))
((= tag :str)
(let
((s (nth node 1)))
(if
(= (len s) 1)
(apl-scalar s)
(make-array
(list (len s))
(map (fn (i) (slice s i (+ i 1))) (range 0 (len s)))))))
((= tag :vec)
(let
((items (rest node)))
@@ -129,14 +109,8 @@
(let
((nm (nth node 1)))
(cond
((= nm "")
(let
((v (get env "")))
(if (= v nil) (get env "alpha") v)))
((= nm "⍵")
(let
((v (get env "⍵")))
(if (= v nil) (get env "omega") v)))
((= nm "") (get env "alpha"))
((= nm "⍵") (get env "omega"))
((= nm "⎕IO") (apl-quad-io))
((= nm "⎕ML") (apl-quad-ml))
((= nm "⎕FR") (apl-quad-fr))
@@ -148,11 +122,7 @@
(if
(and (= (first fn-node) :fn-glyph) (= (nth fn-node 1) "∇"))
(apl-call-dfn-m (get env "nabla") (apl-eval-ast arg env))
(let
((arg-val (apl-eval-ast arg env)))
(let
((new-env (if (and (list? arg) (> (len arg) 0) (= (first arg) :assign-expr)) (assoc env (nth arg 1) arg-val) env)))
((apl-resolve-monadic fn-node new-env) arg-val))))))
((apl-resolve-monadic fn-node env) (apl-eval-ast arg env)))))
((= tag :dyad)
(let
((fn-node (nth node 1))
@@ -164,27 +134,11 @@
(get env "nabla")
(apl-eval-ast lhs env)
(apl-eval-ast rhs env))
(let
((rhs-val (apl-eval-ast rhs env)))
(let
((new-env (if (and (list? rhs) (> (len rhs) 0) (= (first rhs) :assign-expr)) (assoc env (nth rhs 1) rhs-val) env)))
((apl-resolve-dyadic fn-node new-env)
(apl-eval-ast lhs new-env)
rhs-val))))))
((apl-resolve-dyadic fn-node env)
(apl-eval-ast lhs env)
(apl-eval-ast rhs env)))))
((= tag :program) (apl-eval-stmts (rest node) env))
((= tag :dfn) node)
((= tag :bracket)
(let
((arr-expr (nth node 1)) (axis-exprs (rest (rest node))))
(let
((arr (apl-eval-ast arr-expr env))
(axes
(map
(fn (a) (if (= a :all) nil (apl-eval-ast a env)))
axis-exprs)))
(apl-bracket-multi axes arr))))
((= tag :assign-expr) (apl-eval-ast (nth node 2) env))
((= tag :assign) (apl-eval-ast (nth node 2) env))
(else (error (list "apl-eval-ast: unknown node tag" tag node)))))))
(define
@@ -465,36 +419,6 @@
((f (apl-resolve-dyadic inner env)))
(fn (arr) (apl-commute f arr))))
(else (error "apl-resolve-monadic: unsupported op")))))
((= tag :fn-name)
(let
((nm (nth fn-node 1)))
(let
((bound (get env nm)))
(if
(and
(list? bound)
(> (len bound) 0)
(= (first bound) :dfn))
(fn (arg) (apl-call-dfn-m bound arg))
(error "apl-resolve-monadic: name not bound to dfn")))))
((= tag :train)
(let
((fns (rest fn-node)))
(let
((n (len fns)))
(cond
((= n 2)
(let
((g (apl-resolve-monadic (nth fns 0) env))
(h (apl-resolve-monadic (nth fns 1) env)))
(fn (arg) (g (h arg)))))
((= n 3)
(let
((f (apl-resolve-monadic (nth fns 0) env))
(g (apl-resolve-dyadic (nth fns 1) env))
(h (apl-resolve-monadic (nth fns 2) env)))
(fn (arg) (g (f arg) (h arg)))))
(else (error "monadic train arity not 2 or 3"))))))
(else (error "apl-resolve-monadic: unknown fn-node tag"))))))
(define
@@ -518,18 +442,6 @@
((f (apl-resolve-dyadic inner env)))
(fn (a b) (apl-commute-dyadic f a b))))
(else (error "apl-resolve-dyadic: unsupported op")))))
((= tag :fn-name)
(let
((nm (nth fn-node 1)))
(let
((bound (get env nm)))
(if
(and
(list? bound)
(> (len bound) 0)
(= (first bound) :dfn))
(fn (a b) (apl-call-dfn bound a b))
(error "apl-resolve-dyadic: name not bound to dfn")))))
((= tag :outer)
(let
((inner (nth fn-node 2)))
@@ -543,26 +455,6 @@
((f (apl-resolve-dyadic f-node env))
(g (apl-resolve-dyadic g-node env)))
(fn (a b) (apl-inner f g a b)))))
((= tag :train)
(let
((fns (rest fn-node)))
(let
((n (len fns)))
(cond
((= n 2)
(let
((g (apl-resolve-monadic (nth fns 0) env))
(h (apl-resolve-dyadic (nth fns 1) env)))
(fn (a b) (g (h a b)))))
((= n 3)
(let
((f (apl-resolve-dyadic (nth fns 0) env))
(g (apl-resolve-dyadic (nth fns 1) env))
(h (apl-resolve-dyadic (nth fns 2) env)))
(fn (a b) (g (f a b) (h a b)))))
(else (error "dyadic train arity not 2 or 3"))))))
(else (error "apl-resolve-dyadic: unknown fn-node tag"))))))
(define apl-run (fn (src) (apl-eval-ast (parse-apl src) {})))
(define apl-run-file (fn (path) (apl-run (file-read path))))

View File

@@ -76,7 +76,7 @@ cat > "$TMPFILE" << 'EPOCHS'
(eval "(list er-fib-test-pass er-fib-test-count)")
EPOCHS
timeout 600 "$SX_SERVER" < "$TMPFILE" > "$OUTFILE" 2>&1
timeout 120 "$SX_SERVER" < "$TMPFILE" > "$OUTFILE" 2>&1
# Parse "(N M)" from the line after each "(ok-len <epoch> ...)" marker.
parse_pair() {

View File

@@ -1,16 +1,16 @@
{
"language": "erlang",
"total_pass": 530,
"total": 530,
"total_pass": 0,
"total": 0,
"suites": [
{"name":"tokenize","pass":62,"total":62,"status":"ok"},
{"name":"parse","pass":52,"total":52,"status":"ok"},
{"name":"eval","pass":346,"total":346,"status":"ok"},
{"name":"runtime","pass":39,"total":39,"status":"ok"},
{"name":"ring","pass":4,"total":4,"status":"ok"},
{"name":"ping-pong","pass":4,"total":4,"status":"ok"},
{"name":"bank","pass":8,"total":8,"status":"ok"},
{"name":"echo","pass":7,"total":7,"status":"ok"},
{"name":"fib","pass":8,"total":8,"status":"ok"}
{"name":"tokenize","pass":0,"total":0,"status":"ok"},
{"name":"parse","pass":0,"total":0,"status":"ok"},
{"name":"eval","pass":0,"total":0,"status":"ok"},
{"name":"runtime","pass":0,"total":0,"status":"ok"},
{"name":"ring","pass":0,"total":0,"status":"ok"},
{"name":"ping-pong","pass":0,"total":0,"status":"ok"},
{"name":"bank","pass":0,"total":0,"status":"ok"},
{"name":"echo","pass":0,"total":0,"status":"ok"},
{"name":"fib","pass":0,"total":0,"status":"ok"}
]
}

View File

@@ -1,18 +1,18 @@
# Erlang-on-SX Scoreboard
**Total: 530 / 530 tests passing**
**Total: 0 / 0 tests passing**
| | Suite | Pass | Total |
|---|---|---|---|
| ✅ | tokenize | 62 | 62 |
| ✅ | parse | 52 | 52 |
| ✅ | eval | 346 | 346 |
| ✅ | runtime | 39 | 39 |
| ✅ | ring | 4 | 4 |
| ✅ | ping-pong | 4 | 4 |
| ✅ | bank | 8 | 8 |
| ✅ | echo | 7 | 7 |
| ✅ | fib | 8 | 8 |
| ✅ | tokenize | 0 | 0 |
| ✅ | parse | 0 | 0 |
| ✅ | eval | 0 | 0 |
| ✅ | runtime | 0 | 0 |
| ✅ | ring | 0 | 0 |
| ✅ | ping-pong | 0 | 0 |
| ✅ | bank | 0 | 0 |
| ✅ | echo | 0 | 0 |
| ✅ | fib | 0 | 0 |
Generated by `lib/erlang/conformance.sh`.

View File

@@ -1,180 +0,0 @@
;; lib/guest/hm.sx — Hindley-Milner type-inference foundations.
;;
;; Builds on lib/guest/match.sx (terms + unify) and ast.sx (canonical
;; AST shapes). This file ships the ALGEBRA — types, schemes, free
;; type-vars, generalize / instantiate, substitution composition — so a
;; full Algorithm W (or J) can be assembled on top either inside this
;; file or in a host-specific consumer (haskell/infer.sx,
;; lib/ocaml/types.sx, …).
;;
;; Per the brief the second consumer for this step is OCaml-on-SX
;; Phase 5 (paired sequencing). Until that lands, the algebra is the
;; deliverable; the host-flavoured assembly (lambda / app / let
;; inference rules with substitution threading) lives in the host.
;;
;; Types
;; -----
;; A type is a canonical match.sx term — type variables use mk-var,
;; type constructors use mk-ctor:
;; (hm-tv NAME) type variable
;; (hm-arrow A B) A -> B
;; (hm-con NAME ARGS) named n-ary constructor
;; (hm-int) / (hm-bool) / (hm-string) primitive constructors
;;
;; Schemes
;; -------
;; (hm-scheme VARS TYPE) ∀ VARS . TYPE
;; (hm-monotype TYPE) empty quantifier
;; (hm-scheme? S) (hm-scheme-vars S) (hm-scheme-type S)
;;
;; Free type variables
;; -------------------
;; (hm-ftv TYPE) names occurring in TYPE
;; (hm-ftv-scheme S) free names (minus quantifiers)
;; (hm-ftv-env ENV) free across an env (name -> scheme)
;;
;; Substitution
;; ------------
;; (hm-apply SUBST TYPE) substitute through a type
;; (hm-apply-scheme SUBST S) leaves bound vars alone
;; (hm-apply-env SUBST ENV)
;; (hm-compose S2 S1) apply S1 then S2
;;
;; Generalize / Instantiate
;; ------------------------
;; (hm-generalize TYPE ENV) → scheme over ftv(t) - ftv(env)
;; (hm-instantiate SCHEME COUNTER) → fresh-var instance
;; (hm-fresh-tv COUNTER) → (:var "tN"), bumps COUNTER
;;
;; Inference (literal only — the rest of Algorithm W lives in the host)
;; --------------------------------------------------------------------
;; (hm-infer-literal EXPR) → {:subst {} :type T}
;;
;; A complete Algorithm W consumes this kit by assembling lambda / app
;; / let rules in the host language file.
(define hm-tv (fn (name) (list :var name)))
(define hm-con (fn (name args) (list :ctor name args)))
(define hm-arrow (fn (a b) (hm-con "->" (list a b))))
(define hm-int (fn () (hm-con "Int" (list))))
(define hm-bool (fn () (hm-con "Bool" (list))))
(define hm-string (fn () (hm-con "String" (list))))
(define hm-scheme (fn (vars t) (list :scheme vars t)))
(define hm-monotype (fn (t) (hm-scheme (list) t)))
(define hm-scheme? (fn (s) (and (list? s) (not (empty? s)) (= (first s) :scheme))))
(define hm-scheme-vars (fn (s) (nth s 1)))
(define hm-scheme-type (fn (s) (nth s 2)))
(define
hm-fresh-tv
(fn (counter)
(let ((n (first counter)))
(begin
(set-nth! counter 0 (+ n 1))
(hm-tv (str "t" (+ n 1)))))))
(define
hm-ftv-acc
(fn (t acc)
(cond
((is-var? t)
(if (some (fn (n) (= n (var-name t))) acc) acc (cons (var-name t) acc)))
((is-ctor? t)
(let ((a acc))
(begin
(for-each (fn (x) (set! a (hm-ftv-acc x a))) (ctor-args t))
a)))
(:else acc))))
(define hm-ftv (fn (t) (hm-ftv-acc t (list))))
(define
hm-ftv-scheme
(fn (s)
(let ((qs (hm-scheme-vars s))
(all (hm-ftv (hm-scheme-type s))))
(filter (fn (n) (not (some (fn (q) (= q n)) qs))) all))))
(define
hm-ftv-env
(fn (env)
(let ((acc (list)))
(begin
(for-each
(fn (k)
(for-each
(fn (n)
(when (not (some (fn (m) (= m n)) acc))
(set! acc (cons n acc))))
(hm-ftv-scheme (get env k))))
(keys env))
acc))))
(define hm-apply (fn (subst t) (walk* t subst)))
(define
hm-apply-scheme
(fn (subst s)
(let ((qs (hm-scheme-vars s))
(d {}))
(begin
(for-each
(fn (k)
(when (not (some (fn (q) (= q k)) qs))
(dict-set! d k (get subst k))))
(keys subst))
(hm-scheme qs (walk* (hm-scheme-type s) d))))))
(define
hm-apply-env
(fn (subst env)
(let ((d {}))
(begin
(for-each
(fn (k) (dict-set! d k (hm-apply-scheme subst (get env k))))
(keys env))
d))))
(define
hm-compose
(fn (s2 s1)
(let ((d {}))
(begin
(for-each (fn (k) (dict-set! d k (walk* (get s1 k) s2))) (keys s1))
(for-each
(fn (k) (when (not (has-key? d k)) (dict-set! d k (get s2 k))))
(keys s2))
d))))
(define
hm-generalize
(fn (t env)
(let ((tvars (hm-ftv t))
(evars (hm-ftv-env env)))
(let ((qs (filter (fn (n) (not (some (fn (m) (= m n)) evars))) tvars)))
(hm-scheme qs t)))))
(define
hm-instantiate
(fn (s counter)
(let ((qs (hm-scheme-vars s))
(subst {}))
(begin
(for-each
(fn (q) (set! subst (assoc subst q (hm-fresh-tv counter))))
qs)
(walk* (hm-scheme-type s) subst)))))
;; Literal inference — the only AST kind whose typing rule is closed
;; in the kit. Lambda / app / let live in host code so the host's own
;; AST conventions stay untouched.
(define
hm-infer-literal
(fn (expr)
(let ((v (ast-literal-value expr)))
(cond
((number? v) {:subst {} :type (hm-int)})
((string? v) {:subst {} :type (hm-string)})
((boolean? v) {:subst {} :type (hm-bool)})
(:else (error (str "hm-infer-literal: unknown kind: " v)))))))

View File

@@ -1,145 +0,0 @@
;; lib/guest/layout.sx — configurable off-side / layout-sensitive lexer.
;;
;; Inserts virtual open / close / separator tokens based on indentation.
;; Configurable enough to encode either the Haskell 98 layout rule (let /
;; where / do / of opens a virtual brace at the next token's column) or
;; a Python-ish indent / dedent rule (a colon at the end of a line opens
;; a block at the next non-blank line's column).
;;
;; Token shape (input + output)
;; ----------------------------
;; Each token is a dict {:type :value :line :col …}. The kit reads
;; only :type / :value / :line / :col and passes everything else
;; through. The input stream MUST be free of newline filler tokens
;; (preprocess them away with your tokenizer) — line breaks are detected
;; by comparing :line of consecutive tokens.
;;
;; Config
;; ------
;; :open-keywords list of strings; a token whose :value matches
;; opens a new layout block at the next token's
;; column (Haskell: let/where/do/of).
;; :open-trailing-fn (fn (tok) -> bool) — alternative trigger that
;; fires AFTER the token is emitted. Use for
;; Python-style trailing `:`.
;; :open-token / :close-token / :sep-token
;; templates {:type :value} merged with :line and
;; :col when virtual tokens are emitted.
;; :explicit-open? (fn (tok) -> bool) — if the next token after a
;; trigger satisfies this, suppress virtual layout
;; for that block (Haskell: `{`).
;; :module-prelude? if true, wrap whole input in an implicit block
;; at the first token's column (Haskell yes,
;; Python no).
;;
;; Public entry
;; ------------
;; (layout-pass cfg tokens) -> tokens with virtual layout inserted.
(define
layout-mk-virtual
(fn (template line col)
(assoc (assoc template :line line) :col col)))
(define
layout-is-open-kw?
(fn (tok open-kws)
(and (= (get tok :type) "reserved")
(some (fn (k) (= k (get tok :value))) open-kws))))
(define
layout-pass
(fn (cfg tokens)
(let ((open-kws (get cfg :open-keywords))
(trailing-fn (get cfg :open-trailing-fn))
(open-tmpl (get cfg :open-token))
(close-tmpl (get cfg :close-token))
(sep-tmpl (get cfg :sep-token))
(mod-prelude? (get cfg :module-prelude?))
(expl?-fn (get cfg :explicit-open?))
(out (list))
(stack (list))
(n (len tokens))
(i 0)
(prev-line -1)
(pending-open false)
(just-opened false))
(define
emit-closes-while-greater
(fn (col line)
(when (and (not (empty? stack)) (> (first stack) col))
(do
(append! out (layout-mk-virtual close-tmpl line col))
(set! stack (rest stack))
(emit-closes-while-greater col line)))))
(define
emit-pending-open
(fn (line col)
(do
(append! out (layout-mk-virtual open-tmpl line col))
(set! stack (cons col stack))
(set! pending-open false)
(set! just-opened true))))
(define
layout-step
(fn ()
(when (< i n)
(let ((tok (nth tokens i)))
(let ((line (get tok :line)) (col (get tok :col)))
(cond
(pending-open
(cond
((and (not (= expl?-fn nil)) (expl?-fn tok))
(do
(set! pending-open false)
(append! out tok)
(set! prev-line line)
(set! i (+ i 1))
(layout-step)))
(:else
(do
(emit-pending-open line col)
(layout-step)))))
(:else
(let ((on-fresh-line? (and (> prev-line 0) (> line prev-line))))
(do
(when on-fresh-line?
(let ((stack-before stack))
(begin
(emit-closes-while-greater col line)
(when (and (not (empty? stack))
(= (first stack) col)
(not just-opened)
;; suppress separator if a dedent fired
;; — the dedent is itself the separator
(= (len stack) (len stack-before)))
(append! out (layout-mk-virtual sep-tmpl line col))))))
(set! just-opened false)
(append! out tok)
(set! prev-line line)
(set! i (+ i 1))
(cond
((layout-is-open-kw? tok open-kws)
(set! pending-open true))
((and (not (= trailing-fn nil)) (trailing-fn tok))
(set! pending-open true)))
(layout-step))))))))))
(begin
;; Module prelude: implicit layout block at the first token's column.
(when (and mod-prelude? (> n 0))
(let ((tok (nth tokens 0)))
(do
(append! out (layout-mk-virtual open-tmpl (get tok :line) (get tok :col)))
(set! stack (cons (get tok :col) stack))
(set! just-opened true))))
(layout-step)
;; EOF: close every remaining block.
(define close-rest
(fn ()
(when (not (empty? stack))
(do
(append! out (layout-mk-virtual close-tmpl 0 0))
(set! stack (rest stack))
(close-rest)))))
(close-rest)
out))))

View File

@@ -1,159 +0,0 @@
;; lib/guest/reflective/env.sx — first-class environment kit.
;;
;; Extracted from Kernel-on-SX (lib/kernel/eval.sx) when Tcl's
;; uplevel/upvar machinery (lib/tcl/runtime.sx) materialised as a
;; second consumer needing the same scope-chain semantics.
;;
;; Canonical wire shape
;; --------------------
;; {:refl-tag :env :bindings DICT :parent ENV-OR-NIL}
;;
;; - :bindings is a mutable SX dict keyed by symbol name.
;; - :parent is either another env or nil (root).
;; - Lookup walks the parent chain until a hit or nil.
;; - Default cfg uses dict-set! to mutate bindings in place.
;;
;; Consumers with their own shape (e.g., Tcl's {:level :locals :parent})
;; pass an adapter cfg dict — same trick as lib/guest/match.sx's cfg
;; for unification over guest-specific term shapes.
;;
;; Adapter cfg keys
;; ----------------
;; :bindings-of — fn (scope) → DICT
;; :parent-of — fn (scope) → SCOPE-OR-NIL
;; :extend — fn (scope) → SCOPE (push a fresh child)
;; :bind! — fn (scope name val) → scope (functional or mutable)
;; :env? — fn (v) → bool (predicate; cheap shape check)
;;
;; Public API — canonical shape, mutable, raises on miss
;;
;; (refl-make-env)
;; (refl-extend-env PARENT)
;; (refl-env? V)
;; (refl-env-bind! ENV NAME VAL)
;; (refl-env-has? ENV NAME)
;; (refl-env-lookup ENV NAME)
;; (refl-env-lookup-or-nil ENV NAME)
;;
;; Public API — adapter-cfg, any shape
;;
;; (refl-env-extend-with CFG SCOPE)
;; (refl-env-bind!-with CFG SCOPE NAME VAL)
;; (refl-env-has?-with CFG SCOPE NAME)
;; (refl-env-lookup-with CFG SCOPE NAME)
;; (refl-env-lookup-or-nil-with CFG SCOPE NAME)
;; (refl-env-find-frame-with CFG SCOPE NAME)
;; — returns the scope in the chain that contains NAME (or nil).
;; Consumers needing source-frame mutation use this.
;;
;; (refl-canonical-cfg) — the default cfg, exposed so consumers
;; can compare or extend it.
;; ── Canonical-shape predicates and constructors ─────────────────
(define refl-env? (fn (v) (and (dict? v) (= (get v :refl-tag) :env))))
(define refl-make-env (fn () {:parent nil :refl-tag :env :bindings {}}))
(define refl-extend-env (fn (parent) {:parent parent :refl-tag :env :bindings {}}))
(define
refl-env-bind!
(fn (env name val) (dict-set! (get env :bindings) name val) env))
(define
refl-env-has?
(fn
(env name)
(cond
((nil? env) false)
((not (refl-env? env)) false)
((dict-has? (get env :bindings) name) true)
(:else (refl-env-has? (get env :parent) name)))))
(define
refl-env-lookup
(fn
(env name)
(cond
((nil? env) (error (str "refl-env-lookup: unbound symbol: " name)))
((not (refl-env? env))
(error (str "refl-env-lookup: corrupt env: " env)))
((dict-has? (get env :bindings) name) (get (get env :bindings) name))
(:else (refl-env-lookup (get env :parent) name)))))
(define
refl-env-lookup-or-nil
(fn
(env name)
(cond
((nil? env) nil)
((not (refl-env? env)) nil)
((dict-has? (get env :bindings) name) (get (get env :bindings) name))
(:else (refl-env-lookup-or-nil (get env :parent) name)))))
;; ── Adapter-cfg variants — any wire shape ───────────────────────
(define refl-env-extend-with (fn (cfg scope) ((get cfg :extend) scope)))
(define
refl-env-bind!-with
(fn (cfg scope name val) ((get cfg :bind!) scope name val)))
(define
refl-env-has?-with
(fn
(cfg scope name)
(cond
((nil? scope) false)
((not ((get cfg :env?) scope)) false)
((dict-has? ((get cfg :bindings-of) scope) name) true)
(:else (refl-env-has?-with cfg ((get cfg :parent-of) scope) name)))))
(define
refl-env-lookup-with
(fn
(cfg scope name)
(cond
((nil? scope) (error (str "refl-env-lookup: unbound symbol: " name)))
((not ((get cfg :env?) scope))
(error (str "refl-env-lookup: corrupt scope: " scope)))
((dict-has? ((get cfg :bindings-of) scope) name)
(get ((get cfg :bindings-of) scope) name))
(:else (refl-env-lookup-with cfg ((get cfg :parent-of) scope) name)))))
(define
refl-env-lookup-or-nil-with
(fn
(cfg scope name)
(cond
((nil? scope) nil)
((not ((get cfg :env?) scope)) nil)
((dict-has? ((get cfg :bindings-of) scope) name)
(get ((get cfg :bindings-of) scope) name))
(:else
(refl-env-lookup-or-nil-with cfg ((get cfg :parent-of) scope) name)))))
;; Returns the SCOPE in the chain that contains NAME, or nil if no
;; scope binds it. Consumers (e.g. Smalltalk) use this to mutate the
;; binding at its source frame rather than introducing a new shadow
;; binding at the current frame. Pairs with `refl-env-lookup-with`
;; for callers that need both the value and the defining scope.
(define refl-env-find-frame-with
(fn (cfg scope name)
(cond
((nil? scope) nil)
((not ((get cfg :env?) scope)) nil)
((dict-has? ((get cfg :bindings-of) scope) name) scope)
(:else
(refl-env-find-frame-with cfg ((get cfg :parent-of) scope) name)))))
(define refl-env-find-frame
(fn (env name) (refl-env-find-frame-with refl-canonical-cfg env name)))
;; ── Default canonical cfg ───────────────────────────────────────
;; Exposed so consumers can use it explicitly, compose with it, or
;; check adapter-correctness against the canonical implementation.
(define refl-canonical-cfg {:bind! (fn (e n v) (refl-env-bind! e n v)) :parent-of (fn (e) (get e :parent)) :env? (fn (v) (refl-env? v)) :bindings-of (fn (e) (get e :bindings)) :extend (fn (e) (refl-extend-env e))})

View File

@@ -1,89 +0,0 @@
;; lib/guest/tests/hm.sx — exercises lib/guest/hm.sx algebra.
(define ghm-test-pass 0)
(define ghm-test-fail 0)
(define ghm-test-fails (list))
(define
ghm-test
(fn (name actual expected)
(if (= actual expected)
(set! ghm-test-pass (+ ghm-test-pass 1))
(begin
(set! ghm-test-fail (+ ghm-test-fail 1))
(append! ghm-test-fails {:name name :expected expected :actual actual})))))
;; ── Type constructors ─────────────────────────────────────────────
(ghm-test "tv" (hm-tv "a") (list :var "a"))
(ghm-test "int" (hm-int) (list :ctor "Int" (list)))
(ghm-test "arrow" (ctor-head (hm-arrow (hm-int) (hm-bool))) "->")
(ghm-test "arrow-args-len" (len (ctor-args (hm-arrow (hm-int) (hm-bool)))) 2)
;; ── Schemes ───────────────────────────────────────────────────────
(ghm-test "scheme-vars" (hm-scheme-vars (hm-scheme (list "a") (hm-tv "a"))) (list "a"))
(ghm-test "monotype-vars" (hm-scheme-vars (hm-monotype (hm-int))) (list))
(ghm-test "scheme?-yes" (hm-scheme? (hm-monotype (hm-int))) true)
(ghm-test "scheme?-no" (hm-scheme? (hm-int)) false)
;; ── Fresh tyvars ──────────────────────────────────────────────────
(ghm-test "fresh-1"
(let ((c (list 0))) (var-name (hm-fresh-tv c))) "t1")
(ghm-test "fresh-bumps"
(let ((c (list 5))) (begin (hm-fresh-tv c) (first c))) 6)
;; ── Free type variables ──────────────────────────────────────────
(ghm-test "ftv-int" (hm-ftv (hm-int)) (list))
(ghm-test "ftv-tv" (hm-ftv (hm-tv "a")) (list "a"))
(ghm-test "ftv-arrow"
(len (hm-ftv (hm-arrow (hm-tv "a") (hm-arrow (hm-tv "b") (hm-tv "a"))))) 2)
(ghm-test "ftv-scheme-quantified"
(hm-ftv-scheme (hm-scheme (list "a") (hm-arrow (hm-tv "a") (hm-tv "b")))) (list "b"))
(ghm-test "ftv-env"
(let ((env (assoc {} "f" (hm-monotype (hm-arrow (hm-tv "x") (hm-tv "y"))))))
(len (hm-ftv-env env))) 2)
;; ── Substitution / apply / compose ───────────────────────────────
(ghm-test "apply-tv"
(hm-apply (assoc {} "a" (hm-int)) (hm-tv "a")) (hm-int))
(ghm-test "apply-arrow"
(ctor-head
(hm-apply (assoc {} "a" (hm-int))
(hm-arrow (hm-tv "a") (hm-tv "b")))) "->")
(ghm-test "compose-1-then-2"
(var-name
(hm-apply
(hm-compose (assoc {} "b" (hm-tv "c")) (assoc {} "a" (hm-tv "b")))
(hm-tv "a"))) "c")
;; ── Generalize / Instantiate ─────────────────────────────────────
;; forall a. a -> a instantiated twice yields fresh vars each time
(ghm-test "generalize-id"
(len (hm-scheme-vars (hm-generalize (hm-arrow (hm-tv "a") (hm-tv "a")) {}))) 1)
(ghm-test "generalize-skips-env"
;; ftv(t)={a,b}, ftv(env)={a}, qs={b}
(let ((env (assoc {} "x" (hm-monotype (hm-tv "a")))))
(len (hm-scheme-vars
(hm-generalize (hm-arrow (hm-tv "a") (hm-tv "b")) env)))) 1)
(ghm-test "instantiate-fresh"
(let ((s (hm-scheme (list "a") (hm-arrow (hm-tv "a") (hm-tv "a"))))
(c (list 0)))
(let ((t1 (hm-instantiate s c)) (t2 (hm-instantiate s c)))
(not (= (var-name (first (ctor-args t1)))
(var-name (first (ctor-args t2)))))))
true)
;; ── Inference (literal only) ─────────────────────────────────────
(ghm-test "infer-int"
(ctor-head (get (hm-infer-literal (ast-literal 42)) :type)) "Int")
(ghm-test "infer-string"
(ctor-head (get (hm-infer-literal (ast-literal "hi")) :type)) "String")
(ghm-test "infer-bool"
(ctor-head (get (hm-infer-literal (ast-literal true)) :type)) "Bool")
(define ghm-tests-run!
(fn ()
{:passed ghm-test-pass
:failed ghm-test-fail
:total (+ ghm-test-pass ghm-test-fail)}))

View File

@@ -1,180 +0,0 @@
;; lib/guest/tests/layout.sx — synthetic Python-ish off-side fixture.
;;
;; Exercises lib/guest/layout.sx with a config different from Haskell's
;; (no module-prelude, layout opens via trailing `:` not via reserved
;; keyword) to prove the kit isn't Haskell-shaped.
(define glayout-test-pass 0)
(define glayout-test-fail 0)
(define glayout-test-fails (list))
(define
glayout-test
(fn (name actual expected)
(if (= actual expected)
(set! glayout-test-pass (+ glayout-test-pass 1))
(begin
(set! glayout-test-fail (+ glayout-test-fail 1))
(append! glayout-test-fails {:name name :expected expected :actual actual})))))
;; Convenience: build a token from {type value line col}.
(define
glayout-tok
(fn (ty val line col)
{:type ty :value val :line line :col col}))
;; Project a token list to ((type value) ...) for compact comparison.
(define
glayout-shape
(fn (toks)
(map (fn (t) (list (get t :type) (get t :value))) toks)))
;; ── Haskell-flavour: keyword opens block ─────────────────────────
(define
glayout-haskell-cfg
{:open-keywords (list "let" "where" "do" "of")
:open-trailing-fn nil
:open-token {:type "vlbrace" :value "{"}
:close-token {:type "vrbrace" :value "}"}
:sep-token {:type "vsemi" :value ";"}
:module-prelude? false
:explicit-open? (fn (tok) (= (get tok :type) "lbrace"))})
;; do
;; a
;; b
;; c ← outside the do-block
(glayout-test "haskell-do-block"
(glayout-shape
(layout-pass
glayout-haskell-cfg
(list (glayout-tok "reserved" "do" 1 1)
(glayout-tok "ident" "a" 2 3)
(glayout-tok "ident" "b" 3 3)
(glayout-tok "ident" "c" 4 1))))
(list (list "reserved" "do")
(list "vlbrace" "{")
(list "ident" "a")
(list "vsemi" ";")
(list "ident" "b")
(list "vrbrace" "}")
(list "ident" "c")))
;; Explicit `{` after `do` suppresses virtual layout.
(glayout-test "haskell-explicit-brace"
(glayout-shape
(layout-pass
glayout-haskell-cfg
(list (glayout-tok "reserved" "do" 1 1)
(glayout-tok "lbrace" "{" 1 4)
(glayout-tok "ident" "a" 1 6)
(glayout-tok "rbrace" "}" 1 8))))
(list (list "reserved" "do")
(list "lbrace" "{")
(list "ident" "a")
(list "rbrace" "}")))
;; Single-statement do-block on the same line.
(glayout-test "haskell-do-inline"
(glayout-shape
(layout-pass
glayout-haskell-cfg
(list (glayout-tok "reserved" "do" 1 1)
(glayout-tok "ident" "a" 1 4))))
(list (list "reserved" "do")
(list "vlbrace" "{")
(list "ident" "a")
(list "vrbrace" "}")))
;; Module-prelude: wrap whole input in implicit layout block at first
;; tok's column.
(glayout-test "haskell-module-prelude"
(glayout-shape
(layout-pass
(assoc glayout-haskell-cfg :module-prelude? true)
(list (glayout-tok "ident" "x" 1 1)
(glayout-tok "ident" "y" 2 1)
(glayout-tok "ident" "z" 3 1))))
(list (list "vlbrace" "{")
(list "ident" "x")
(list "vsemi" ";")
(list "ident" "y")
(list "vsemi" ";")
(list "ident" "z")
(list "vrbrace" "}")))
;; ── Python-flavour: trailing `:` opens block ─────────────────────
(define
glayout-python-cfg
{:open-keywords (list)
:open-trailing-fn (fn (tok) (and (= (get tok :type) "punct")
(= (get tok :value) ":")))
:open-token {:type "indent" :value "INDENT"}
:close-token {:type "dedent" :value "DEDENT"}
:sep-token {:type "newline" :value "NEWLINE"}
:module-prelude? false
:explicit-open? nil})
;; if x:
;; a
;; b
;; c
(glayout-test "python-if-block"
(glayout-shape
(layout-pass
glayout-python-cfg
(list (glayout-tok "reserved" "if" 1 1)
(glayout-tok "ident" "x" 1 4)
(glayout-tok "punct" ":" 1 5)
(glayout-tok "ident" "a" 2 5)
(glayout-tok "ident" "b" 3 5)
(glayout-tok "ident" "c" 4 1))))
(list (list "reserved" "if")
(list "ident" "x")
(list "punct" ":")
(list "indent" "INDENT")
(list "ident" "a")
(list "newline" "NEWLINE")
(list "ident" "b")
(list "dedent" "DEDENT")
(list "ident" "c")))
;; Nested Python-style blocks.
;; def f():
;; if x:
;; a
;; b
(glayout-test "python-nested"
(glayout-shape
(layout-pass
glayout-python-cfg
(list (glayout-tok "reserved" "def" 1 1)
(glayout-tok "ident" "f" 1 5)
(glayout-tok "punct" "(" 1 6)
(glayout-tok "punct" ")" 1 7)
(glayout-tok "punct" ":" 1 8)
(glayout-tok "reserved" "if" 2 5)
(glayout-tok "ident" "x" 2 8)
(glayout-tok "punct" ":" 2 9)
(glayout-tok "ident" "a" 3 9)
(glayout-tok "ident" "b" 4 5))))
(list (list "reserved" "def")
(list "ident" "f")
(list "punct" "(")
(list "punct" ")")
(list "punct" ":")
(list "indent" "INDENT")
(list "reserved" "if")
(list "ident" "x")
(list "punct" ":")
(list "indent" "INDENT")
(list "ident" "a")
(list "dedent" "DEDENT")
(list "ident" "b")
(list "dedent" "DEDENT")))
(define glayout-tests-run!
(fn ()
{:passed glayout-test-pass
:failed glayout-test-fail
:total (+ glayout-test-pass glayout-test-fail)}))

View File

@@ -14,8 +14,6 @@ PRELOADS=(
lib/haskell/runtime.sx
lib/haskell/match.sx
lib/haskell/eval.sx
lib/haskell/map.sx
lib/haskell/set.sx
lib/haskell/testlib.sx
)
@@ -38,24 +36,6 @@ SUITES=(
"matrix:lib/haskell/tests/program-matrix.sx"
"wordcount:lib/haskell/tests/program-wordcount.sx"
"powers:lib/haskell/tests/program-powers.sx"
"caesar:lib/haskell/tests/program-caesar.sx"
"runlength-str:lib/haskell/tests/program-runlength-str.sx"
"showadt:lib/haskell/tests/program-showadt.sx"
"showio:lib/haskell/tests/program-showio.sx"
"partial:lib/haskell/tests/program-partial.sx"
"statistics:lib/haskell/tests/program-statistics.sx"
"newton:lib/haskell/tests/program-newton.sx"
"wordfreq:lib/haskell/tests/program-wordfreq.sx"
"mapgraph:lib/haskell/tests/program-mapgraph.sx"
"uniquewords:lib/haskell/tests/program-uniquewords.sx"
"setops:lib/haskell/tests/program-setops.sx"
"shapes:lib/haskell/tests/program-shapes.sx"
"person:lib/haskell/tests/program-person.sx"
"config:lib/haskell/tests/program-config.sx"
"counter:lib/haskell/tests/program-counter.sx"
"accumulate:lib/haskell/tests/program-accumulate.sx"
"safediv:lib/haskell/tests/program-safediv.sx"
"trycatch:lib/haskell/tests/program-trycatch.sx"
)
emit_scoreboard_json() {

View File

@@ -131,280 +131,119 @@
(let
((tag (first node)))
(cond
;; Transformations
((= tag "where")
(list
:let (map hk-desugar (nth node 2))
:let
(map hk-desugar (nth node 2))
(hk-desugar (nth node 1))))
((= tag "guarded") (hk-guards-to-if (nth node 1)))
((= tag "list-comp")
(hk-lc-desugar (hk-desugar (nth node 1)) (nth node 2)))
(hk-lc-desugar
(hk-desugar (nth node 1))
(nth node 2)))
;; Expression nodes
((= tag "app")
(list
:app (hk-desugar (nth node 1))
(hk-desugar (nth node 2))))
((= tag "p-rec")
(let
((cname (nth node 1))
(field-pats (nth node 2))
(field-order (hk-record-field-names cname)))
(cond
((nil? field-order)
(raise (str "p-rec: no record info for " cname)))
(:else
(list
:p-con
cname
(map
(fn
(fname)
(let
((p (hk-find-rec-pair field-pats fname)))
(cond
((nil? p) (list :p-wild))
(:else (hk-desugar (nth p 1))))))
field-order))))))
((= tag "rec-update")
(list
:rec-update
:app
(hk-desugar (nth node 1))
(map
(fn (p) (list (first p) (hk-desugar (nth p 1))))
(nth node 2))))
((= tag "rec-create")
(let
((cname (nth node 1))
(field-pairs (nth node 2))
(field-order (hk-record-field-names cname)))
(cond
((nil? field-order)
(raise (str "rec-create: no record info for " cname)))
(:else
(let
((acc (list :con cname)))
(begin
(for-each
(fn
(fname)
(let
((pair
(hk-find-rec-pair field-pairs fname)))
(cond
((nil? pair)
(raise
(str
"rec-create: missing field "
fname
" for "
cname)))
(:else
(set!
acc
(list
:app
acc
(hk-desugar (nth pair 1))))))))
field-order)
acc))))))
(hk-desugar (nth node 2))))
((= tag "op")
(list
:op (nth node 1)
:op
(nth node 1)
(hk-desugar (nth node 2))
(hk-desugar (nth node 3))))
((= tag "neg") (list :neg (hk-desugar (nth node 1))))
((= tag "if")
(list
:if (hk-desugar (nth node 1))
:if
(hk-desugar (nth node 1))
(hk-desugar (nth node 2))
(hk-desugar (nth node 3))))
((= tag "tuple") (list :tuple (map hk-desugar (nth node 1))))
((= tag "list") (list :list (map hk-desugar (nth node 1))))
((= tag "tuple")
(list :tuple (map hk-desugar (nth node 1))))
((= tag "list")
(list :list (map hk-desugar (nth node 1))))
((= tag "range")
(list
:range (hk-desugar (nth node 1))
:range
(hk-desugar (nth node 1))
(hk-desugar (nth node 2))))
((= tag "range-step")
(list
:range-step (hk-desugar (nth node 1))
:range-step
(hk-desugar (nth node 1))
(hk-desugar (nth node 2))
(hk-desugar (nth node 3))))
((= tag "lambda")
(list :lambda (nth node 1) (hk-desugar (nth node 2))))
(list
:lambda
(nth node 1)
(hk-desugar (nth node 2))))
((= tag "let")
(list
:let (map hk-desugar (nth node 1))
:let
(map hk-desugar (nth node 1))
(hk-desugar (nth node 2))))
((= tag "case")
(list
:case (hk-desugar (nth node 1))
:case
(hk-desugar (nth node 1))
(map hk-desugar (nth node 2))))
((= tag "alt")
(list :alt (hk-desugar (nth node 1)) (hk-desugar (nth node 2))))
(list :alt (nth node 1) (hk-desugar (nth node 2))))
((= tag "do") (hk-desugar-do (nth node 1)))
((= tag "sect-left")
(list :sect-left (nth node 1) (hk-desugar (nth node 2))))
(list
:sect-left
(nth node 1)
(hk-desugar (nth node 2))))
((= tag "sect-right")
(list :sect-right (nth node 1) (hk-desugar (nth node 2))))
(list
:sect-right
(nth node 1)
(hk-desugar (nth node 2))))
;; Top-level
((= tag "program")
(list :program (map hk-desugar (hk-expand-records (nth node 1)))))
(list :program (map hk-desugar (nth node 1))))
((= tag "module")
(list
:module (nth node 1)
:module
(nth node 1)
(nth node 2)
(nth node 3)
(map hk-desugar (hk-expand-records (nth node 4)))))
(map hk-desugar (nth node 4))))
;; Decls carrying a body
((= tag "fun-clause")
(list
:fun-clause (nth node 1)
(map hk-desugar (nth node 2))
(hk-desugar (nth node 3))))
((= tag "instance-decl")
(list
:instance-decl (nth node 1)
:fun-clause
(nth node 1)
(nth node 2)
(map hk-desugar (nth node 3))))
(hk-desugar (nth node 3))))
((= tag "pat-bind")
(list :pat-bind (nth node 1) (hk-desugar (nth node 2))))
(list
:pat-bind
(nth node 1)
(hk-desugar (nth node 2))))
((= tag "bind")
(list :bind (nth node 1) (hk-desugar (nth node 2))))
(list
:bind
(nth node 1)
(hk-desugar (nth node 2))))
;; Everything else: leaf literals, vars, cons, patterns,
;; types, imports, type-sigs, data / newtype / fixity, …
(:else node)))))))
;; Convenience — tokenize + layout + parse + desugar.
(define hk-record-fields (dict))
(define
hk-core
(fn (src) (hk-desugar (hk-parse-top src))))
(define
hk-register-record-fields!
(fn (cname fields) (dict-set! hk-record-fields cname fields)))
(define
hk-record-field-names
(fn
(cname)
(if (has-key? hk-record-fields cname) (get hk-record-fields cname) nil)))
(define
hk-record-field-index
(fn
(cname fname)
(let
((fields (hk-record-field-names cname)))
(cond
((nil? fields) -1)
(:else
(let
((i 0) (idx -1))
(begin
(for-each
(fn
(f)
(begin (when (= f fname) (set! idx i)) (set! i (+ i 1))))
fields)
idx)))))))
(define
hk-find-rec-pair
(fn
(pairs name)
(cond
((empty? pairs) nil)
((= (first (first pairs)) name) (first pairs))
(:else (hk-find-rec-pair (rest pairs) name)))))
(define
hk-record-accessors
(fn
(cname rec-fields)
(let
((n (len rec-fields)) (i 0) (out (list)))
(define
hk-ra-loop
(fn
()
(when
(< i n)
(let
((field (nth rec-fields i)))
(let
((fname (first field)) (j 0) (pats (list)))
(define
hk-pat-loop
(fn
()
(when
(< j n)
(begin
(append!
pats
(if
(= j i)
(list "p-var" "__rec_field")
(list "p-wild")))
(set! j (+ j 1))
(hk-pat-loop)))))
(hk-pat-loop)
(append!
out
(list
"fun-clause"
fname
(list (list "p-con" cname pats))
(list "var" "__rec_field")))
(set! i (+ i 1))
(hk-ra-loop))))))
(hk-ra-loop)
out)))
(define
hk-expand-records
(fn
(decls)
(let
((out (list)))
(for-each
(fn
(d)
(cond
((and (list? d) (= (first d) "data"))
(let
((dname (nth d 1))
(tvars (nth d 2))
(cons-list (nth d 3))
(deriving (if (> (len d) 4) (nth d 4) (list)))
(new-cons (list))
(accessors (list)))
(begin
(for-each
(fn
(c)
(cond
((= (first c) "con-rec")
(let
((cname (nth c 1)) (rec-fields (nth c 2)))
(begin
(hk-register-record-fields!
cname
(map (fn (f) (first f)) rec-fields))
(append!
new-cons
(list
"con-def"
cname
(map (fn (f) (nth f 1)) rec-fields)))
(for-each
(fn (a) (append! accessors a))
(hk-record-accessors cname rec-fields)))))
(:else (append! new-cons c))))
cons-list)
(append!
out
(if
(empty? deriving)
(list "data" dname tvars new-cons)
(list "data" dname tvars new-cons deriving)))
(for-each (fn (a) (append! out a)) accessors))))
(:else (append! out d))))
decls)
out)))
(define hk-core (fn (src) (hk-desugar (hk-parse-top src))))
(define hk-core-expr (fn (src) (hk-desugar (hk-parse src))))
hk-core-expr
(fn (src) (hk-desugar (hk-parse src))))

File diff suppressed because one or more lines are too long

View File

@@ -1,520 +0,0 @@
;; map.sx — Phase 11 Data.Map: weight-balanced BST in pure SX.
;;
;; Algorithm: Adams's weight-balanced tree (the same family as Haskell's
;; Data.Map). Each node tracks its size; rotations maintain the invariant
;;
;; size(small-side) * delta >= size(large-side) (delta = 3)
;;
;; with single or double rotations chosen by the gamma ratio (gamma = 2).
;; The size field is an Int and is included so `size`, `lookup`, etc. are
;; O(log n) on both extremes of the tree.
;;
;; Representation:
;; Empty → ("Map-Empty")
;; Node → ("Map-Node" key val left right size)
;;
;; All operations are pure SX — no mutation of nodes once constructed.
;; The user-facing Haskell layer (Phase 11 next iteration) wraps these
;; for `import Data.Map as Map`.
;; ── Constructors ────────────────────────────────────────────
(define hk-map-empty (list "Map-Empty"))
(define
hk-map-node
(fn
(k v l r)
(list "Map-Node" k v l r (+ 1 (+ (hk-map-size l) (hk-map-size r))))))
;; ── Predicates and accessors ────────────────────────────────
(define hk-map-empty? (fn (m) (and (list? m) (= (first m) "Map-Empty"))))
(define hk-map-node? (fn (m) (and (list? m) (= (first m) "Map-Node"))))
(define
hk-map-size
(fn (m) (cond ((hk-map-empty? m) 0) (:else (nth m 5)))))
(define hk-map-key (fn (m) (nth m 1)))
(define hk-map-val (fn (m) (nth m 2)))
(define hk-map-left (fn (m) (nth m 3)))
(define hk-map-right (fn (m) (nth m 4)))
;; ── Weight-balanced rotations ───────────────────────────────
;; delta and gamma per Adams 1992 / Haskell Data.Map.
(define hk-map-delta 3)
(define hk-map-gamma 2)
(define
hk-map-single-l
(fn
(k v l r)
(let
((rk (hk-map-key r))
(rv (hk-map-val r))
(rl (hk-map-left r))
(rr (hk-map-right r)))
(hk-map-node rk rv (hk-map-node k v l rl) rr))))
(define
hk-map-single-r
(fn
(k v l r)
(let
((lk (hk-map-key l))
(lv (hk-map-val l))
(ll (hk-map-left l))
(lr (hk-map-right l)))
(hk-map-node lk lv ll (hk-map-node k v lr r)))))
(define
hk-map-double-l
(fn
(k v l r)
(let
((rk (hk-map-key r))
(rv (hk-map-val r))
(rl (hk-map-left r))
(rr (hk-map-right r))
(rlk (hk-map-key (hk-map-left r)))
(rlv (hk-map-val (hk-map-left r)))
(rll (hk-map-left (hk-map-left r)))
(rlr (hk-map-right (hk-map-left r))))
(hk-map-node
rlk
rlv
(hk-map-node k v l rll)
(hk-map-node rk rv rlr rr)))))
(define
hk-map-double-r
(fn
(k v l r)
(let
((lk (hk-map-key l))
(lv (hk-map-val l))
(ll (hk-map-left l))
(lr (hk-map-right l))
(lrk (hk-map-key (hk-map-right l)))
(lrv (hk-map-val (hk-map-right l)))
(lrl (hk-map-left (hk-map-right l)))
(lrr (hk-map-right (hk-map-right l))))
(hk-map-node
lrk
lrv
(hk-map-node lk lv ll lrl)
(hk-map-node k v lrr r)))))
;; ── Balanced node constructor ──────────────────────────────
;; Use this in place of hk-map-node when one side may have grown
;; or shrunk by one and we need to restore the weight invariant.
(define
hk-map-balance
(fn
(k v l r)
(let
((sl (hk-map-size l)) (sr (hk-map-size r)))
(cond
((<= (+ sl sr) 1) (hk-map-node k v l r))
((> sr (* hk-map-delta sl))
(let
((rl (hk-map-left r)) (rr (hk-map-right r)))
(cond
((< (hk-map-size rl) (* hk-map-gamma (hk-map-size rr)))
(hk-map-single-l k v l r))
(:else (hk-map-double-l k v l r)))))
((> sl (* hk-map-delta sr))
(let
((ll (hk-map-left l)) (lr (hk-map-right l)))
(cond
((< (hk-map-size lr) (* hk-map-gamma (hk-map-size ll)))
(hk-map-single-r k v l r))
(:else (hk-map-double-r k v l r)))))
(:else (hk-map-node k v l r))))))
(define
hk-map-singleton
(fn (k v) (hk-map-node k v hk-map-empty hk-map-empty)))
(define
hk-map-insert
(fn
(k v m)
(cond
((hk-map-empty? m) (hk-map-singleton k v))
(:else
(let
((mk (hk-map-key m)))
(cond
((< k mk)
(hk-map-balance
mk
(hk-map-val m)
(hk-map-insert k v (hk-map-left m))
(hk-map-right m)))
((> k mk)
(hk-map-balance
mk
(hk-map-val m)
(hk-map-left m)
(hk-map-insert k v (hk-map-right m))))
(:else (hk-map-node k v (hk-map-left m) (hk-map-right m)))))))))
(define
hk-map-lookup
(fn
(k m)
(cond
((hk-map-empty? m) (list "Nothing"))
(:else
(let
((mk (hk-map-key m)))
(cond
((< k mk) (hk-map-lookup k (hk-map-left m)))
((> k mk) (hk-map-lookup k (hk-map-right m)))
(:else (list "Just" (hk-map-val m)))))))))
(define
hk-map-member
(fn
(k m)
(cond
((hk-map-empty? m) false)
(:else
(let
((mk (hk-map-key m)))
(cond
((< k mk) (hk-map-member k (hk-map-left m)))
((> k mk) (hk-map-member k (hk-map-right m)))
(:else true)))))))
(define hk-map-null hk-map-empty?)
(define
hk-map-find-min
(fn
(m)
(cond
((hk-map-empty? (hk-map-left m))
(list (hk-map-key m) (hk-map-val m)))
(:else (hk-map-find-min (hk-map-left m))))))
(define
hk-map-delete-min
(fn
(m)
(cond
((hk-map-empty? (hk-map-left m)) (hk-map-right m))
(:else
(hk-map-balance
(hk-map-key m)
(hk-map-val m)
(hk-map-delete-min (hk-map-left m))
(hk-map-right m))))))
(define
hk-map-find-max
(fn
(m)
(cond
((hk-map-empty? (hk-map-right m))
(list (hk-map-key m) (hk-map-val m)))
(:else (hk-map-find-max (hk-map-right m))))))
(define
hk-map-delete-max
(fn
(m)
(cond
((hk-map-empty? (hk-map-right m)) (hk-map-left m))
(:else
(hk-map-balance
(hk-map-key m)
(hk-map-val m)
(hk-map-left m)
(hk-map-delete-max (hk-map-right m)))))))
(define
hk-map-glue
(fn
(l r)
(cond
((hk-map-empty? l) r)
((hk-map-empty? r) l)
((> (hk-map-size l) (hk-map-size r))
(let
((mp (hk-map-find-max l)))
(hk-map-balance (first mp) (nth mp 1) (hk-map-delete-max l) r)))
(:else
(let
((mp (hk-map-find-min r)))
(hk-map-balance (first mp) (nth mp 1) l (hk-map-delete-min r)))))))
(define
hk-map-delete
(fn
(k m)
(cond
((hk-map-empty? m) m)
(:else
(let
((mk (hk-map-key m)))
(cond
((< k mk)
(hk-map-balance
mk
(hk-map-val m)
(hk-map-delete k (hk-map-left m))
(hk-map-right m)))
((> k mk)
(hk-map-balance
mk
(hk-map-val m)
(hk-map-left m)
(hk-map-delete k (hk-map-right m))))
(:else (hk-map-glue (hk-map-left m) (hk-map-right m)))))))))
(define
hk-map-from-list
(fn
(pairs)
(reduce
(fn (acc p) (hk-map-insert (first p) (nth p 1) acc))
hk-map-empty
pairs)))
(define
hk-map-to-asc-list
(fn
(m)
(cond
((hk-map-empty? m) (list))
(:else
(append
(hk-map-to-asc-list (hk-map-left m))
(cons
(list (hk-map-key m) (hk-map-val m))
(hk-map-to-asc-list (hk-map-right m))))))))
(define hk-map-to-list hk-map-to-asc-list)
(define
hk-map-keys
(fn
(m)
(cond
((hk-map-empty? m) (list))
(:else
(append
(hk-map-keys (hk-map-left m))
(cons (hk-map-key m) (hk-map-keys (hk-map-right m))))))))
(define
hk-map-elems
(fn
(m)
(cond
((hk-map-empty? m) (list))
(:else
(append
(hk-map-elems (hk-map-left m))
(cons (hk-map-val m) (hk-map-elems (hk-map-right m))))))))
(define
hk-map-union-with
(fn
(f m1 m2)
(reduce
(fn
(acc p)
(let
((k (first p)) (v (nth p 1)))
(let
((look (hk-map-lookup k acc)))
(cond
((= (first look) "Just")
(hk-map-insert k (f (nth look 1) v) acc))
(:else (hk-map-insert k v acc))))))
m1
(hk-map-to-asc-list m2))))
(define
hk-map-intersection-with
(fn
(f m1 m2)
(reduce
(fn
(acc p)
(let
((k (first p)) (v1 (nth p 1)))
(let
((look (hk-map-lookup k m2)))
(cond
((= (first look) "Just")
(hk-map-insert k (f v1 (nth look 1)) acc))
(:else acc)))))
hk-map-empty
(hk-map-to-asc-list m1))))
(define
hk-map-difference
(fn
(m1 m2)
(reduce
(fn
(acc p)
(let
((k (first p)) (v (nth p 1)))
(cond ((hk-map-member k m2) acc) (:else (hk-map-insert k v acc)))))
hk-map-empty
(hk-map-to-asc-list m1))))
(define
hk-map-foldl-with-key
(fn
(f acc m)
(cond
((hk-map-empty? m) acc)
(:else
(let
((acc1 (hk-map-foldl-with-key f acc (hk-map-left m))))
(let
((acc2 (f acc1 (hk-map-key m) (hk-map-val m))))
(hk-map-foldl-with-key f acc2 (hk-map-right m))))))))
(define
hk-map-foldr-with-key
(fn
(f acc m)
(cond
((hk-map-empty? m) acc)
(:else
(let
((acc1 (hk-map-foldr-with-key f acc (hk-map-right m))))
(let
((acc2 (f (hk-map-key m) (hk-map-val m) acc1)))
(hk-map-foldr-with-key f acc2 (hk-map-left m))))))))
(define
hk-map-map-with-key
(fn
(f m)
(cond
((hk-map-empty? m) m)
(:else
(list
"Map-Node"
(hk-map-key m)
(f (hk-map-key m) (hk-map-val m))
(hk-map-map-with-key f (hk-map-left m))
(hk-map-map-with-key f (hk-map-right m))
(hk-map-size m))))))
(define
hk-map-filter-with-key
(fn
(p m)
(hk-map-foldr-with-key
(fn (k v acc) (cond ((p k v) (hk-map-insert k v acc)) (:else acc)))
hk-map-empty
m)))
(define
hk-map-adjust
(fn
(f k m)
(cond
((hk-map-empty? m) m)
(:else
(let
((mk (hk-map-key m)))
(cond
((< k mk)
(hk-map-node
mk
(hk-map-val m)
(hk-map-adjust f k (hk-map-left m))
(hk-map-right m)))
((> k mk)
(hk-map-node
mk
(hk-map-val m)
(hk-map-left m)
(hk-map-adjust f k (hk-map-right m))))
(:else
(hk-map-node
mk
(f (hk-map-val m))
(hk-map-left m)
(hk-map-right m)))))))))
(define
hk-map-insert-with
(fn
(f k v m)
(cond
((hk-map-empty? m) (hk-map-singleton k v))
(:else
(let
((mk (hk-map-key m)))
(cond
((< k mk)
(hk-map-balance
mk
(hk-map-val m)
(hk-map-insert-with f k v (hk-map-left m))
(hk-map-right m)))
((> k mk)
(hk-map-balance
mk
(hk-map-val m)
(hk-map-left m)
(hk-map-insert-with f k v (hk-map-right m))))
(:else
(hk-map-node
mk
(f v (hk-map-val m))
(hk-map-left m)
(hk-map-right m)))))))))
(define
hk-map-insert-with-key
(fn
(f k v m)
(cond
((hk-map-empty? m) (hk-map-singleton k v))
(:else
(let
((mk (hk-map-key m)))
(cond
((< k mk)
(hk-map-balance
mk
(hk-map-val m)
(hk-map-insert-with-key f k v (hk-map-left m))
(hk-map-right m)))
((> k mk)
(hk-map-balance
mk
(hk-map-val m)
(hk-map-left m)
(hk-map-insert-with-key f k v (hk-map-right m))))
(:else
(hk-map-node
mk
(f k v (hk-map-val m))
(hk-map-left m)
(hk-map-right m)))))))))
(define
hk-map-alter
(fn
(f k m)
(let
((look (hk-map-lookup k m)))
(let
((res (f look)))
(cond
((= (first res) "Nothing") (hk-map-delete k m))
(:else (hk-map-insert k (nth res 1) m)))))))

View File

@@ -87,41 +87,45 @@
((nil? res) nil)
(:else (assoc res (nth pat 1) val)))))
(:else
(let
((fv (hk-force val)))
(let ((fv (hk-force val)))
(cond
((= tag "p-int")
(if (and (number? fv) (= fv (nth pat 1))) env nil))
(if
(and (number? fv) (= fv (nth pat 1)))
env
nil))
((= tag "p-float")
(if (and (number? fv) (= fv (nth pat 1))) env nil))
(if
(and (number? fv) (= fv (nth pat 1)))
env
nil))
((= tag "p-string")
(if (and (string? fv) (= fv (nth pat 1))) env nil))
(if
(and (string? fv) (= fv (nth pat 1)))
env
nil))
((= tag "p-char")
(if (and (string? fv) (= fv (nth pat 1))) env nil))
(if
(and (string? fv) (= fv (nth pat 1)))
env
nil))
((= tag "p-con")
(let
((pat-name (nth pat 1)) (pat-args (nth pat 2)))
(cond
((and (= pat-name ":") (hk-str? fv) (not (hk-str-null? fv)))
(let
((str-head (hk-str-head fv))
(str-tail (hk-str-tail fv)))
(let
((head-pat (nth pat-args 0))
(tail-pat (nth pat-args 1)))
(let
((res (hk-match head-pat str-head env)))
(cond
((nil? res) nil)
(:else (hk-match tail-pat str-tail res)))))))
((not (hk-is-con-val? fv)) nil)
((not (= (hk-val-con-name fv) pat-name)) nil)
(:else
(let
((val-args (hk-val-con-args fv)))
(cond
((not (= (len val-args) (len pat-args))) nil)
(:else (hk-match-all pat-args val-args env))))))))
((not (= (len pat-args) (len val-args)))
nil)
(:else
(hk-match-all
pat-args
val-args
env))))))))
((= tag "p-tuple")
(let
((items (nth pat 1)))
@@ -130,8 +134,13 @@
((not (= (hk-val-con-name fv) "Tuple")) nil)
((not (= (len (hk-val-con-args fv)) (len items)))
nil)
(:else (hk-match-all items (hk-val-con-args fv) env)))))
((= tag "p-list") (hk-match-list-pat (nth pat 1) fv env))
(:else
(hk-match-all
items
(hk-val-con-args fv)
env)))))
((= tag "p-list")
(hk-match-list-pat (nth pat 1) fv env))
(:else nil))))))))))
(define
@@ -152,26 +161,17 @@
hk-match-list-pat
(fn
(items val env)
(let
((fv (hk-force val)))
(let ((fv (hk-force val)))
(cond
((empty? items)
(if
(or
(and (hk-is-con-val? fv) (= (hk-val-con-name fv) "[]"))
(and (hk-str? fv) (hk-str-null? fv)))
(and
(hk-is-con-val? fv)
(= (hk-val-con-name fv) "[]"))
env
nil))
(:else
(cond
((and (hk-str? fv) (not (hk-str-null? fv)))
(let
((h (hk-str-head fv)) (t (hk-str-tail fv)))
(let
((res (hk-match (first items) h env)))
(cond
((nil? res) nil)
(:else (hk-match-list-pat (rest items) t res))))))
((not (hk-is-con-val? fv)) nil)
((not (= (hk-val-con-name fv) ":")) nil)
(:else
@@ -183,7 +183,11 @@
((res (hk-match (first items) h env)))
(cond
((nil? res) nil)
(:else (hk-match-list-pat (rest items) t res)))))))))))))
(:else
(hk-match-list-pat
(rest items)
t
res)))))))))))))
;; ── Convenience: parse a pattern from source for tests ─────
;; (Uses the parser's case-alt entry — `case _ of pat -> 0` —

View File

@@ -208,19 +208,9 @@
((= (get t "type") "char")
(do (hk-advance!) (list :char (get t "value"))))
((= (get t "type") "varid")
(do
(hk-advance!)
(cond
((hk-match? "lbrace" nil)
(hk-parse-rec-update (list :var (get t "value"))))
(:else (list :var (get t "value"))))))
(do (hk-advance!) (list :var (get t "value"))))
((= (get t "type") "conid")
(do
(hk-advance!)
(cond
((hk-match? "lbrace" nil)
(hk-parse-rec-create (get t "value")))
(:else (list :con (get t "value"))))))
(do (hk-advance!) (list :con (get t "value"))))
((= (get t "type") "qvarid")
(do (hk-advance!) (list :var (get t "value"))))
((= (get t "type") "qconid")
@@ -466,90 +456,6 @@
(do
(hk-expect! "rbracket" nil)
(list :list (list first-e))))))))))
(define
hk-parse-rec-create
(fn
(cname)
(begin
(hk-expect! "lbrace" nil)
(let
((fields (list)))
(define
hk-rc-loop
(fn
()
(when
(hk-match? "varid" nil)
(let
((fname (get (hk-advance!) "value")))
(begin
(hk-expect! "reservedop" "=")
(let
((fexpr (hk-parse-expr-inner)))
(begin
(append! fields (list fname fexpr))
(when
(hk-match? "comma" nil)
(begin (hk-advance!) (hk-rc-loop))))))))))
(hk-rc-loop)
(hk-expect! "rbrace" nil)
(list :rec-create cname fields)))))
(define
hk-parse-rec-update
(fn
(rec-expr)
(begin
(hk-expect! "lbrace" nil)
(let
((fields (list)))
(define
hk-ru-loop
(fn
()
(when
(hk-match? "varid" nil)
(let
((fname (get (hk-advance!) "value")))
(begin
(hk-expect! "reservedop" "=")
(let
((fexpr (hk-parse-expr-inner)))
(begin
(append! fields (list fname fexpr))
(when
(hk-match? "comma" nil)
(begin (hk-advance!) (hk-ru-loop))))))))))
(hk-ru-loop)
(hk-expect! "rbrace" nil)
(list :rec-update rec-expr fields)))))
(define
hk-parse-rec-pat
(fn
(cname)
(begin
(hk-expect! "lbrace" nil)
(let
((field-pats (list)))
(define
hk-rp-loop
(fn
()
(when
(hk-match? "varid" nil)
(let
((fname (get (hk-advance!) "value")))
(begin
(hk-expect! "reservedop" "=")
(let
((fpat (hk-parse-pat)))
(begin
(append! field-pats (list fname fpat))
(when
(hk-match? "comma" nil)
(begin (hk-advance!) (hk-rp-loop))))))))))
(hk-rp-loop)
(hk-expect! "rbrace" nil)
(list :p-rec cname field-pats)))))
(define
hk-parse-fexp
(fn
@@ -790,12 +696,7 @@
(:else
(do (hk-advance!) (list :p-var (get t "value")))))))
((= (get t "type") "conid")
(do
(hk-advance!)
(cond
((hk-match? "lbrace" nil)
(hk-parse-rec-pat (get t "value")))
(:else (list :p-con (get t "value") (list))))))
(do (hk-advance!) (list :p-con (get t "value") (list))))
((= (get t "type") "qconid")
(do (hk-advance!) (list :p-con (get t "value") (list))))
((= (get t "type") "lparen") (hk-parse-paren-pat))
@@ -861,24 +762,16 @@
(cond
((and (not (nil? t)) (or (= (get t "type") "conid") (= (get t "type") "qconid")))
(let
((name (get (hk-advance!) "value")))
(cond
((hk-match? "lbrace" nil)
(hk-parse-rec-pat name))
(:else
(let
((args (list)))
(define
hk-pca-loop
(fn
()
(when
(hk-apat-start? (hk-peek))
(do
(append! args (hk-parse-apat))
(hk-pca-loop)))))
(hk-pca-loop)
(list :p-con name args))))))
((name (get (hk-advance!) "value")) (args (list)))
(define
hk-pca-loop
(fn
()
(when
(hk-apat-start? (hk-peek))
(do (append! args (hk-parse-apat)) (hk-pca-loop)))))
(hk-pca-loop)
(list :p-con name args)))
(:else (hk-parse-apat))))))
(define
hk-parse-pat
@@ -1319,47 +1212,16 @@
(not (hk-match? "conid" nil))
(hk-err "expected constructor name"))
(let
((name (get (hk-advance!) "value")))
(cond
((hk-match? "lbrace" nil)
(begin
(hk-advance!)
(let
((rec-fields (list)))
(define
hk-rec-loop
(fn
()
(when
(hk-match? "varid" nil)
(let
((fname (get (hk-advance!) "value")))
(begin
(hk-expect! "reservedop" "::")
(let
((ftype (hk-parse-type)))
(begin
(append! rec-fields (list fname ftype))
(when
(hk-match? "comma" nil)
(begin (hk-advance!) (hk-rec-loop))))))))))
(hk-rec-loop)
(hk-expect! "rbrace" nil)
(list :con-rec name rec-fields))))
(:else
(let
((fields (list)))
(define
hk-cd-loop
(fn
()
(when
(hk-atype-start? (hk-peek))
(begin
(append! fields (hk-parse-atype))
(hk-cd-loop)))))
(hk-cd-loop)
(list :con-def name fields)))))))
((name (get (hk-advance!) "value")) (fields (list)))
(define
hk-cd-loop
(fn
()
(when
(hk-atype-start? (hk-peek))
(do (append! fields (hk-parse-atype)) (hk-cd-loop)))))
(hk-cd-loop)
(list :con-def name fields))))
(define
hk-parse-tvars
(fn

View File

@@ -12,7 +12,12 @@
(define
hk-register-con!
(fn (cname arity type-name) (dict-set! hk-constructors cname {:arity arity :type type-name})))
(fn
(cname arity type-name)
(dict-set!
hk-constructors
cname
{:arity arity :type type-name})))
(define hk-is-con? (fn (name) (has-key? hk-constructors name)))
@@ -43,15 +48,26 @@
(fn
(data-node)
(let
((type-name (nth data-node 1)) (cons-list (nth data-node 3)))
((type-name (nth data-node 1))
(cons-list (nth data-node 3)))
(for-each
(fn (cd) (hk-register-con! (nth cd 1) (len (nth cd 2)) type-name))
(fn
(cd)
(hk-register-con!
(nth cd 1)
(len (nth cd 2))
type-name))
cons-list))))
;; (:newtype NAME TVARS CNAME FIELD)
(define
hk-register-newtype!
(fn (nt-node) (hk-register-con! (nth nt-node 3) 1 (nth nt-node 1))))
(fn
(nt-node)
(hk-register-con!
(nth nt-node 3)
1
(nth nt-node 1))))
;; Walk a decls list, registering every `data` / `newtype` decl.
(define
@@ -62,9 +78,15 @@
(fn
(d)
(cond
((and (list? d) (not (empty? d)) (= (first d) "data"))
((and
(list? d)
(not (empty? d))
(= (first d) "data"))
(hk-register-data! d))
((and (list? d) (not (empty? d)) (= (first d) "newtype"))
((and
(list? d)
(not (empty? d))
(= (first d) "newtype"))
(hk-register-newtype! d))
(:else nil)))
decls)))
@@ -77,12 +99,16 @@
((nil? ast) nil)
((not (list? ast)) nil)
((empty? ast) nil)
((= (first ast) "program") (hk-register-decls! (nth ast 1)))
((= (first ast) "module") (hk-register-decls! (nth ast 4)))
((= (first ast) "program")
(hk-register-decls! (nth ast 1)))
((= (first ast) "module")
(hk-register-decls! (nth ast 4)))
(:else nil))))
;; Convenience: source → AST → desugar → register.
(define hk-load-source! (fn (src) (hk-register-program! (hk-core src))))
(define
hk-load-source!
(fn (src) (hk-register-program! (hk-core src))))
;; ── Built-in constructors pre-registered ─────────────────────
;; Bool — used implicitly by `if`, comparison operators.
@@ -96,55 +122,9 @@
;; Standard Prelude types — pre-registered so expression-level
;; programs can use them without a `data` decl.
(hk-register-con! "Nothing" 0 "Maybe")
(hk-register-con! "Just" 1 "Maybe")
(hk-register-con! "Left" 1 "Either")
(hk-register-con! "Right" 1 "Either")
(hk-register-con! "Just" 1 "Maybe")
(hk-register-con! "Left" 1 "Either")
(hk-register-con! "Right" 1 "Either")
(hk-register-con! "LT" 0 "Ordering")
(hk-register-con! "EQ" 0 "Ordering")
(hk-register-con! "GT" 0 "Ordering")
(hk-register-con! "SomeException" 1 "SomeException")
(define
hk-str?
(fn (v) (or (string? v) (and (dict? v) (has-key? v "hk-str")))))
(define
hk-str-head
(fn
(v)
(if
(string? v)
(char-code (char-at v 0))
(char-code (char-at (get v "hk-str") (get v "hk-off"))))))
(define
hk-str-tail
(fn
(v)
(let
((buf (if (string? v) v (get v "hk-str")))
(off (if (string? v) 1 (+ (get v "hk-off") 1))))
(if (>= off (string-length buf)) (list "[]") {:hk-off off :hk-str buf}))))
(define
hk-str-null?
(fn
(v)
(if
(string? v)
(= (string-length v) 0)
(>= (get v "hk-off") (string-length (get v "hk-str"))))))
(define
hk-str-to-native
(fn
(v)
(if
(string? v)
v
(let
((buf (get v "hk-str")) (off (get v "hk-off")))
(reduce
(fn (acc i) (str acc (char-at buf i)))
""
(range off (string-length buf)))))))

View File

@@ -1,6 +1,6 @@
{
"date": "2026-05-08",
"total_pass": 285,
"date": "2026-05-06",
"total_pass": 156,
"total_fail": 0,
"programs": {
"fib": {"pass": 2, "fail": 0},
@@ -9,7 +9,7 @@
"nqueens": {"pass": 2, "fail": 0},
"calculator": {"pass": 5, "fail": 0},
"collatz": {"pass": 11, "fail": 0},
"palindrome": {"pass": 12, "fail": 0},
"palindrome": {"pass": 8, "fail": 0},
"maybe": {"pass": 12, "fail": 0},
"fizzbuzz": {"pass": 12, "fail": 0},
"anagram": {"pass": 9, "fail": 0},
@@ -19,25 +19,7 @@
"primes": {"pass": 12, "fail": 0},
"zipwith": {"pass": 9, "fail": 0},
"matrix": {"pass": 8, "fail": 0},
"wordcount": {"pass": 10, "fail": 0},
"powers": {"pass": 14, "fail": 0},
"caesar": {"pass": 8, "fail": 0},
"runlength-str": {"pass": 9, "fail": 0},
"showadt": {"pass": 5, "fail": 0},
"showio": {"pass": 5, "fail": 0},
"partial": {"pass": 7, "fail": 0},
"statistics": {"pass": 5, "fail": 0},
"newton": {"pass": 5, "fail": 0},
"wordfreq": {"pass": 7, "fail": 0},
"mapgraph": {"pass": 6, "fail": 0},
"uniquewords": {"pass": 4, "fail": 0},
"setops": {"pass": 8, "fail": 0},
"shapes": {"pass": 5, "fail": 0},
"person": {"pass": 7, "fail": 0},
"config": {"pass": 10, "fail": 0},
"counter": {"pass": 7, "fail": 0},
"accumulate": {"pass": 8, "fail": 0},
"safediv": {"pass": 8, "fail": 0},
"trycatch": {"pass": 8, "fail": 0}
"wordcount": {"pass": 7, "fail": 0},
"powers": {"pass": 14, "fail": 0}
}
}

View File

@@ -1,6 +1,6 @@
# Haskell-on-SX Scoreboard
Updated 2026-05-08 · Phase 6 (prelude extras + 18 programs)
Updated 2026-05-06 · Phase 6 (prelude extras + 18 programs)
| Program | Tests | Status |
|---------|-------|--------|
@@ -10,7 +10,7 @@ Updated 2026-05-08 · Phase 6 (prelude extras + 18 programs)
| nqueens.hs | 2/2 | ✓ |
| calculator.hs | 5/5 | ✓ |
| collatz.hs | 11/11 | ✓ |
| palindrome.hs | 12/12 | ✓ |
| palindrome.hs | 8/8 | ✓ |
| maybe.hs | 12/12 | ✓ |
| fizzbuzz.hs | 12/12 | ✓ |
| anagram.hs | 9/9 | ✓ |
@@ -20,24 +20,6 @@ Updated 2026-05-08 · Phase 6 (prelude extras + 18 programs)
| primes.hs | 12/12 | ✓ |
| zipwith.hs | 9/9 | ✓ |
| matrix.hs | 8/8 | ✓ |
| wordcount.hs | 10/10 | ✓ |
| wordcount.hs | 7/7 | ✓ |
| powers.hs | 14/14 | ✓ |
| caesar.hs | 8/8 | ✓ |
| runlength-str.hs | 9/9 | ✓ |
| showadt.hs | 5/5 | ✓ |
| showio.hs | 5/5 | ✓ |
| partial.hs | 7/7 | ✓ |
| statistics.hs | 5/5 | ✓ |
| newton.hs | 5/5 | ✓ |
| wordfreq.hs | 7/7 | ✓ |
| mapgraph.hs | 6/6 | ✓ |
| uniquewords.hs | 4/4 | ✓ |
| setops.hs | 8/8 | ✓ |
| shapes.hs | 5/5 | ✓ |
| person.hs | 7/7 | ✓ |
| config.hs | 10/10 | ✓ |
| counter.hs | 7/7 | ✓ |
| accumulate.hs | 8/8 | ✓ |
| safediv.hs | 8/8 | ✓ |
| trycatch.hs | 8/8 | ✓ |
| **Total** | **285/285** | **36/36 programs** |
| **Total** | **156/156** | **18/18 programs** |

View File

@@ -1,62 +0,0 @@
;; set.sx — Phase 12 Data.Set: wraps Data.Map with unit values.
;;
;; A Set is a Map from key to (). All set operations delegate to the map
;; ops, ignoring the value side. Storage representation matches Data.Map:
;;
;; Empty → ("Map-Empty")
;; Node → ("Map-Node" key () left right size)
;;
;; Tradeoff: trivial maintenance burden, slight overhead per node from
;; the unused value slot. Faster path forward than re-implementing the
;; weight-balanced BST.
;;
;; Functions live in this file; the Haskell-level `import Data.Set` /
;; `import qualified Data.Set as Set` wiring (next Phase 12 box) binds
;; them under the chosen alias.
(define hk-set-unit (list "Tuple"))
(define hk-set-empty hk-map-empty)
(define hk-set-singleton (fn (k) (hk-map-singleton k hk-set-unit)))
(define hk-set-insert (fn (k s) (hk-map-insert k hk-set-unit s)))
(define hk-set-delete hk-map-delete)
(define hk-set-member hk-map-member)
(define hk-set-size hk-map-size)
(define hk-set-null hk-map-null)
(define hk-set-to-asc-list hk-map-keys)
(define hk-set-to-list hk-map-keys)
(define
hk-set-from-list
(fn (xs) (reduce (fn (acc k) (hk-set-insert k acc)) hk-set-empty xs)))
(define
hk-set-union
(fn (a b) (hk-map-union-with (fn (x y) hk-set-unit) a b)))
(define
hk-set-intersection
(fn (a b) (hk-map-intersection-with (fn (x y) hk-set-unit) a b)))
(define hk-set-difference hk-map-difference)
(define
hk-set-is-subset-of
(fn (a b) (= (hk-map-size (hk-map-difference a b)) 0)))
(define
hk-set-filter
(fn (p s) (hk-map-filter-with-key (fn (k v) (p k)) s)))
(define hk-set-map (fn (f s) (hk-set-from-list (map f (hk-map-keys s)))))
(define
hk-set-foldr
(fn (f z s) (hk-map-foldr-with-key (fn (k v acc) (f k acc)) z s)))
(define
hk-set-foldl
(fn (f z s) (hk-map-foldl-with-key (fn (acc k v) (f acc k)) z s)))

View File

@@ -55,8 +55,6 @@ for FILE in "${FILES[@]}"; do
(load "lib/haskell/runtime.sx")
(load "lib/haskell/match.sx")
(load "lib/haskell/eval.sx")
(load "lib/haskell/map.sx")
(load "lib/haskell/set.sx")
$INFER_LOAD
(load "lib/haskell/testlib.sx")
(epoch 2)
@@ -100,8 +98,6 @@ EPOCHS
(load "lib/haskell/runtime.sx")
(load "lib/haskell/match.sx")
(load "lib/haskell/eval.sx")
(load "lib/haskell/map.sx")
(load "lib/haskell/set.sx")
$INFER_LOAD
(load "lib/haskell/testlib.sx")
(epoch 2)

View File

@@ -56,21 +56,3 @@
(append!
hk-test-fails
{:actual actual :expected expected :name name})))))
(define
hk-test-error
(fn
(name thunk expected-substring)
(let
((caught (guard (e (true (if (string? e) e (str e)))) (begin (thunk) nil))))
(cond
((nil? caught)
(do
(set! hk-test-fail (+ hk-test-fail 1))
(append! hk-test-fails {:actual "no error raised" :expected (str "error containing: " expected-substring) :name name})))
((>= (index-of caught expected-substring) 0)
(set! hk-test-pass (+ hk-test-pass 1)))
(:else
(do
(set! hk-test-fail (+ hk-test-fail 1))
(append! hk-test-fails {:actual caught :expected (str "error containing: " expected-substring) :name name})))))))

View File

@@ -1,86 +0,0 @@
;; class-defaults.sx — Phase 13: class default method implementations.
;; ── Eq default: myNeq derived from myEq via `not (myEq x y)` ──
(define
hk-myeq-source
"class MyEq a where\n myEq :: a -> a -> Bool\n myNeq :: a -> a -> Bool\n myNeq x y = not (myEq x y)\ninstance MyEq Int where\n myEq x y = x == y\n")
(hk-test
"Eq default: myNeq 3 5 = True (no explicit myNeq in instance)"
(hk-deep-force (hk-run (str hk-myeq-source "main = myNeq 3 5\n")))
(list "True"))
(hk-test
"Eq default: myNeq 3 3 = False"
(hk-deep-force (hk-run (str hk-myeq-source "main = myNeq 3 3\n")))
(list "False"))
(hk-test
"Eq default: myEq still works in same instance"
(hk-deep-force (hk-run (str hk-myeq-source "main = myEq 7 7\n")))
(list "True"))
;; ── Override path: instance can still provide the method explicitly. ──
(hk-test
"Default override: instance-provided beats class default"
(hk-deep-force
(hk-run
"class Hi a where\n greet :: a -> String\n greet x = \"default\"\ninstance Hi Bool where\n greet x = \"override\"\nmain = greet True"))
"override")
(hk-test
"Default fallback: empty instance picks default"
(hk-deep-force
(hk-run
"class Hi a where\n greet :: a -> String\n greet x = \"default\"\ninstance Hi Bool where\nmain = greet True"))
"default")
(define
hk-myord-source
"class MyOrd a where\n myCmp :: a -> a -> Bool\n myMax :: a -> a -> a\n myMin :: a -> a -> a\n myMax a b = if myCmp a b then a else b\n myMin a b = if myCmp a b then b else a\ninstance MyOrd Int where\n myCmp x y = x >= y\n")
(hk-test
"Ord default: myMax 3 5 = 5"
(hk-deep-force (hk-run (str hk-myord-source "main = myMax 3 5\n")))
5)
(hk-test
"Ord default: myMax 8 2 = 8"
(hk-deep-force (hk-run (str hk-myord-source "main = myMax 8 2\n")))
8)
(hk-test
"Ord default: myMin 3 5 = 3"
(hk-deep-force (hk-run (str hk-myord-source "main = myMin 3 5\n")))
3)
(hk-test
"Ord default: myMin 8 2 = 2"
(hk-deep-force (hk-run (str hk-myord-source "main = myMin 8 2\n")))
2)
(hk-test
"Ord default: myMax of equals returns first"
(hk-deep-force (hk-run (str hk-myord-source "main = myMax 4 4\n")))
4)
(define
hk-mynum-source
"class MyNum a where\n mySub :: a -> a -> a\n myLt :: a -> a -> Bool\n myNegate :: a -> a\n myAbs :: a -> a\n myNegate x = mySub (mySub x x) x\n myAbs x = if myLt x (mySub x x) then myNegate x else x\ninstance MyNum Int where\n mySub x y = x - y\n myLt x y = x < y\n")
(hk-test
"Num default: myNegate 5 = -5"
(hk-deep-force (hk-run (str hk-mynum-source "main = myNegate 5\n")))
-5)
(hk-test
"Num default: myAbs (myNegate 7) = 7"
(hk-deep-force (hk-run (str hk-mynum-source "main = myAbs (myNegate 7)\n")))
7)
(hk-test
"Num default: myAbs 9 = 9"
(hk-deep-force (hk-run (str hk-mynum-source "main = myAbs 9\n")))
9)
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

View File

@@ -12,14 +12,14 @@
"deriving Show: constructor with arg"
(hk-deep-force
(hk-run "data Wrapper = Wrap Int deriving (Show)\nmain = show (Wrap 42)"))
"Wrap 42")
"(Wrap 42)")
(hk-test
"deriving Show: nested constructors"
(hk-deep-force
(hk-run
"data Tree = Leaf | Node Int Tree Tree deriving (Show)\nmain = show (Node 1 Leaf Leaf)"))
"Node 1 Leaf Leaf")
"(Node 1 Leaf Leaf)")
(hk-test
"deriving Show: second constructor"
@@ -30,31 +30,6 @@
;; ─── Eq ──────────────────────────────────────────────────────────────────────
(hk-test
"deriving Show: nested ADT wraps inner constructor in parens"
(hk-deep-force
(hk-run
"data Tree = Leaf | Node Int Tree Tree deriving (Show)\nmain = show (Node 1 Leaf (Node 2 Leaf Leaf))"))
"Node 1 Leaf (Node 2 Leaf Leaf)")
(hk-test
"deriving Show: Maybe Maybe wraps inner Just"
(hk-deep-force (hk-run "main = show (Just (Just 3))"))
"Just (Just 3)")
(hk-test
"deriving Show: negative argument wrapped in parens"
(hk-deep-force (hk-run "main = show (Just (negate 3))"))
"Just (-3)")
(hk-test
"deriving Show: list element does not need parens"
(hk-deep-force
(hk-run "data Box = Box [Int] deriving (Show)\nmain = show (Box [1,2,3])"))
"Box [1,2,3]")
;; ─── combined Eq + Show ───────────────────────────────────────────────────────
(hk-test
"deriving Eq: same constructor"
(hk-deep-force
@@ -83,12 +58,14 @@
"data Color = Red | Green | Blue deriving (Eq)\nmain = show (Red /= Blue)"))
"True")
;; ─── combined Eq + Show ───────────────────────────────────────────────────────
(hk-test
"deriving Eq Show: combined"
"deriving Eq Show: combined in parens"
(hk-deep-force
(hk-run
"data Shape = Circle Int | Square Int deriving (Eq, Show)\nmain = show (Circle 5)"))
"Circle 5")
"(Circle 5)")
(hk-test
"deriving Eq Show: eq on constructor with arg"

View File

@@ -1,99 +0,0 @@
;; errors.sx — Phase 9 error / undefined / partial-fn coverage via hk-test-error.
;; ── error builtin ────────────────────────────────────────────
(define
hk-as-list
(fn
(xs)
(cond
((and (list? xs) (= (first xs) "[]")) (list))
((and (list? xs) (= (first xs) ":"))
(cons (nth xs 1) (hk-as-list (nth xs 2))))
(:else xs))))
(hk-test-error
"error: raises with literal message"
(fn () (hk-deep-force (hk-run "main = error \"boom\"")))
"hk-error: boom")
(hk-test-error
"error: raises with computed message"
(fn () (hk-deep-force (hk-run "main = error (\"oops: \" ++ show 42)")))
"hk-error: oops: 42")
;; ── undefined ────────────────────────────────────────────────
(hk-test-error
"error: nested in if branch (only fires when forced)"
(fn
()
(hk-deep-force (hk-run "main = if 1 == 1 then error \"taken\" else 0")))
"taken")
(hk-test-error
"undefined: raises Prelude.undefined"
(fn () (hk-deep-force (hk-run "main = undefined")))
"Prelude.undefined")
;; The non-strict path: undefined doesn't fire when not forced.
(hk-test-error
"undefined: forced via arithmetic"
(fn () (hk-deep-force (hk-run "main = undefined + 1")))
"Prelude.undefined")
;; ── partial functions ───────────────────────────────────────
(hk-test
"undefined: lazy, not forced when discarded"
(hk-deep-force (hk-run "main = let _ = undefined in 5"))
5)
(hk-test-error
"head []: raises Prelude.head: empty list"
(fn () (hk-deep-force (hk-run "main = head []")))
"Prelude.head: empty list")
(hk-test-error
"tail []: raises Prelude.tail: empty list"
(fn () (hk-deep-force (hk-run "main = tail []")))
"Prelude.tail: empty list")
;; head and tail still work on non-empty lists.
(hk-test-error
"fromJust Nothing: raises Maybe.fromJust: Nothing"
(fn () (hk-deep-force (hk-run "main = fromJust Nothing")))
"Maybe.fromJust: Nothing")
(hk-test
"head [42]: still works"
(hk-deep-force (hk-run "main = head [42]"))
42)
;; ── error in IO context ─────────────────────────────────────
(hk-test
"tail [1,2,3]: still works"
(hk-as-list (hk-deep-force (hk-run "main = tail [1,2,3]")))
(list 2 3))
(hk-test
"hk-run-io: error in main lands in io-lines"
(let
((lines (hk-run-io "main = error \"caught here\"")))
(>= (index-of (str lines) "caught here") 0))
true)
;; ── hk-test-error helper itself ─────────────────────────────
(hk-test
"hk-run-io: putStrLn before error preserves earlier output"
(let
((lines (hk-run-io "main = do { putStrLn \"first\"; error \"died\"; putStrLn \"never\" }")))
(and
(>= (index-of (str lines) "first") 0)
(>= (index-of (str lines) "died") 0)))
true)
;; hk-as-list helper for converting a forced Haskell cons into an SX list.
(hk-test-error
"hk-test-error: matches partial substring inside wrapped exception"
(fn () (hk-deep-force (hk-run "main = error \"unique-marker-xyz\"")))
"unique-marker-xyz")
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

View File

@@ -231,82 +231,16 @@
1)
;; ── Laziness: app args evaluate only when forced ──
(hk-test
"error builtin: raises with hk-error prefix"
(guard
(e (true (>= (index-of e "hk-error: boom") 0)))
(begin (hk-deep-force (hk-run "main = error \"boom\"")) false))
true)
(hk-test
"error builtin: raises with computed message"
(guard
(e (true (>= (index-of e "hk-error: oops: 42") 0)))
(begin
(hk-deep-force (hk-run "main = error (\"oops: \" ++ show 42)"))
false))
true)
(hk-test
"undefined: raises hk-error with Prelude.undefined message"
(guard
(e (true (>= (index-of e "hk-error: Prelude.undefined") 0)))
(begin (hk-deep-force (hk-run "main = undefined")) false))
true)
(hk-test
"undefined: lazy — only fires when forced"
(hk-deep-force (hk-run "main = if True then 42 else undefined"))
42)
(hk-test
"head []: raises Prelude.head: empty list"
(guard
(e (true (>= (index-of e "Prelude.head: empty list") 0)))
(begin (hk-deep-force (hk-run "main = head []")) false))
true)
(hk-test
"tail []: raises Prelude.tail: empty list"
(guard
(e (true (>= (index-of e "Prelude.tail: empty list") 0)))
(begin (hk-deep-force (hk-run "main = tail []")) false))
true)
;; ── not / id built-ins ──
(hk-test
"fromJust Nothing: raises Maybe.fromJust: Nothing"
(guard
(e (true (>= (index-of e "Maybe.fromJust: Nothing") 0)))
(begin (hk-deep-force (hk-run "main = fromJust Nothing")) false))
true)
(hk-test
"fromJust (Just 5) = 5"
(hk-deep-force (hk-run "main = fromJust (Just 5)"))
5)
(hk-test
"head [42] = 42 (still works for non-empty)"
(hk-deep-force (hk-run "main = head [42]"))
42)
(hk-test-error
"hk-test-error helper: catches matching error"
(fn () (hk-deep-force (hk-run "main = error \"boom\"")))
"hk-error: boom")
(hk-test-error
"hk-test-error helper: catches head [] error"
(fn () (hk-deep-force (hk-run "main = head []")))
"Prelude.head: empty list")
(hk-test
"second arg never forced"
(hk-eval-expr-source "(\\x y -> x) 1 (error \"never\")")
(hk-eval-expr-source
"(\\x y -> x) 1 (error \"never\")")
1)
(hk-test
"first arg never forced"
(hk-eval-expr-source "(\\x y -> y) (error \"never\") 99")
(hk-eval-expr-source
"(\\x y -> y) (error \"never\") 99")
99)
(hk-test
@@ -317,7 +251,9 @@
(hk-test
"lazy: const drops its second argument"
(hk-prog-val "const x y = x\nresult = const 5 (error \"boom\")" "result")
(hk-prog-val
"const x y = x\nresult = const 5 (error \"boom\")"
"result")
5)
(hk-test
@@ -334,10 +270,9 @@
"result")
(list "True"))
;; ── not / id built-ins ──
(hk-test "not True" (hk-eval-expr-source "not True") (list "False"))
(hk-test "not False" (hk-eval-expr-source "not False") (list "True"))
(hk-test "id" (hk-eval-expr-source "id 42") 42)
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

View File

@@ -1,105 +0,0 @@
;; Phase 16 — Exception handling unit tests.
(hk-test
"catch — success path returns the action result"
(hk-deep-force
(hk-run
"main = catch (return 42) (\\(SomeException m) -> return 0)"))
(list "IO" 42))
(hk-test
"catch — error caught, handler receives message"
(hk-deep-force
(hk-run
"main = catch (error \"boom\") (\\(SomeException m) -> return m)"))
(list "IO" "boom"))
(hk-test
"try — success returns Right v"
(hk-deep-force
(hk-run "main = try (return 42)"))
(list "IO" (list "Right" 42)))
(hk-test
"try — error returns Left (SomeException msg)"
(hk-deep-force
(hk-run "main = try (error \"oops\")"))
(list "IO" (list "Left" (list "SomeException" "oops"))))
(hk-test
"handle — flip catch — caught error message"
(hk-deep-force
(hk-run
"main = handle (\\(SomeException m) -> return m) (error \"hot\")"))
(list "IO" "hot"))
(hk-test
"throwIO + catch — handler sees the SomeException"
(hk-deep-force
(hk-run
"main = catch (throwIO (SomeException \"bang\")) (\\(SomeException m) -> return m)"))
(list "IO" "bang"))
(hk-test
"throwIO + try — Left side"
(hk-deep-force
(hk-run
"main = try (throwIO (SomeException \"x\"))"))
(list "IO" (list "Left" (list "SomeException" "x"))))
(hk-test
"evaluate — pure value returns IO v"
(hk-deep-force
(hk-run "main = evaluate (1 + 2 + 3)"))
(list "IO" 6))
(hk-test
"evaluate — error surfaces as catchable exception"
(hk-deep-force
(hk-run
"main = catch (evaluate (error \"deep\")) (\\(SomeException m) -> return m)"))
(list "IO" "deep"))
(hk-test
"nested catch — inner handler runs first"
(hk-deep-force
(hk-run
"main = catch (catch (error \"inner\") (\\(SomeException m) -> error (m ++ \"-rethrown\"))) (\\(SomeException m) -> return m)"))
(list "IO" "inner-rethrown"))
(hk-test
"catch chain — handler can succeed inside IO"
(hk-deep-force
(hk-run
"main = do { x <- catch (error \"e1\") (\\(SomeException m) -> return 100); return (x + 1) }"))
(list "IO" 101))
(hk-test
"try then bind on Right"
(hk-deep-force
(hk-run
"branch (Right v) = return (v * 2)
branch (Left _) = return 0
main = do { r <- try (return 21); branch r }"))
(list "IO" 42))
(hk-test
"try then bind on Left"
(hk-deep-force
(hk-run
"branch (Right _) = return \"ok\"
branch (Left (SomeException m)) = return m
main = do { r <- try (error \"failed\"); branch r }"))
(list "IO" "failed"))
(hk-test
"catch — handler can use closed-over IORef"
(hk-deep-force
(hk-run
"import qualified Data.IORef as IORef
main = do
r <- IORef.newIORef 0
catch (error \"x\") (\\(SomeException m) -> IORef.writeIORef r 7)
v <- IORef.readIORef r
return v"))
(list "IO" 7))

View File

@@ -1,31 +0,0 @@
;; instance-where.sx — Phase 13: where-clauses inside instance bodies.
(hk-test
"instance method body with where-helper (Bool)"
(hk-deep-force
(hk-run
"class Greet a where\n greet :: a -> String\ninstance Greet Bool where\n greet x = mkMsg x\n where mkMsg True = \"yes\"\n mkMsg False = \"no\"\nmain = greet True"))
"yes")
(hk-test
"instance method body with where-helper (False branch)"
(hk-deep-force
(hk-run
"class Greet a where\n greet :: a -> String\ninstance Greet Bool where\n greet x = mkMsg x\n where mkMsg True = \"yes\"\n mkMsg False = \"no\"\nmain = greet False"))
"no")
(hk-test
"instance method body with where-binding referenced multiple times"
(hk-deep-force
(hk-run
"class Twice a where\n twice :: a -> Int\ninstance Twice Int where\n twice x = h + h\n where h = x + 1\nmain = twice 5"))
12)
(hk-test
"instance method body with multi-binding where"
(hk-deep-force
(hk-run
"class Calc a where\n calc :: a -> Int\ninstance Calc Int where\n calc x = a + b\n where a = x * 2\n b = x + 1\nmain = calc 3"))
10)
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

View File

@@ -64,11 +64,12 @@
(hk-test
"readFile error on missing file"
(begin
(set! hk-vfs (dict))
(let
((lines (hk-run-io "main = readFile \"no.txt\" >>= putStrLn")))
(>= (index-of (str lines) "file not found") 0)))
(guard
(e (true (>= (index-of e "file not found") 0)))
(begin
(set! hk-vfs (dict))
(hk-run-io "main = readFile \"no.txt\" >>= putStrLn")
false))
true)
(hk-test

View File

@@ -1,94 +0,0 @@
;; Phase 15 — IORef unit tests.
(hk-test
"newIORef + readIORef returns initial value"
(hk-deep-force
(hk-run
"import qualified Data.IORef as IORef\nmain = do { r <- IORef.newIORef 42; v <- IORef.readIORef r; return v }"))
(list "IO" 42))
(hk-test
"writeIORef updates the cell"
(hk-deep-force
(hk-run
"import qualified Data.IORef as IORef\nmain = do { r <- IORef.newIORef 0; IORef.writeIORef r 99; v <- IORef.readIORef r; return v }"))
(list "IO" 99))
(hk-test
"writeIORef returns IO ()"
(hk-deep-force
(hk-run
"import qualified Data.IORef as IORef\nmain = do { r <- IORef.newIORef 0; IORef.writeIORef r 1 }"))
(list "IO" (list "Tuple")))
(hk-test
"modifyIORef applies a function"
(hk-deep-force
(hk-run
"import qualified Data.IORef as IORef\nmain = do { r <- IORef.newIORef 5; IORef.modifyIORef r (\\x -> x * 2); v <- IORef.readIORef r; return v }"))
(list "IO" 10))
(hk-test
"modifyIORef' (strict) applies a function"
(hk-deep-force
(hk-run
"import qualified Data.IORef as IORef\nmain = do { r <- IORef.newIORef 7; IORef.modifyIORef' r (\\x -> x + 3); v <- IORef.readIORef r; return v }"))
(list "IO" 10))
(hk-test
"two reads return the same value"
(hk-deep-force
(hk-run
"import qualified Data.IORef as IORef\nmain = do { r <- IORef.newIORef 11; a <- IORef.readIORef r; b <- IORef.readIORef r; return (a + b) }"))
(list "IO" 22))
(hk-test
"shared ref across do-steps: write then read"
(hk-deep-force
(hk-run
"import qualified Data.IORef as IORef\nmain = do { r <- IORef.newIORef 1; IORef.writeIORef r 2; IORef.writeIORef r 3; v <- IORef.readIORef r; return v }"))
(list "IO" 3))
(hk-test
"two refs are independent"
(hk-deep-force
(hk-run
"import qualified Data.IORef as IORef\nmain = do { r1 <- IORef.newIORef 1; r2 <- IORef.newIORef 2; IORef.writeIORef r1 10; a <- IORef.readIORef r1; b <- IORef.readIORef r2; return (a + b) }"))
(list "IO" 12))
(hk-test
"string-valued IORef"
(hk-deep-force
(hk-run
"import qualified Data.IORef as IORef\nmain = do { r <- IORef.newIORef \"hi\"; IORef.writeIORef r \"bye\"; v <- IORef.readIORef r; return v }"))
(list "IO" "bye"))
(hk-test
"list-valued IORef + cons"
(hk-deep-force
(hk-run
"import qualified Data.IORef as IORef\nmain = do { r <- IORef.newIORef [1,2,3]; IORef.modifyIORef r (\\xs -> 0 : xs); v <- IORef.readIORef r; return v }"))
(list
"IO"
(list ":" 0 (list ":" 1 (list ":" 2 (list ":" 3 (list "[]")))))))
(hk-test
"counter loop: increment N times"
(hk-deep-force
(hk-run
"import qualified Data.IORef as IORef\nloop r 0 = return ()\nloop r n = do { IORef.modifyIORef r (\\x -> x + 1); loop r (n - 1) }\nmain = do { r <- IORef.newIORef 0; loop r 10; v <- IORef.readIORef r; return v }"))
(list "IO" 10))
(hk-test
"modifyIORef' inside a loop"
(hk-deep-force
(hk-run
"import qualified Data.IORef as IORef\ngo r 0 = return ()\ngo r n = do { IORef.modifyIORef' r (\\x -> x + n); go r (n - 1) }\nmain = do { r <- IORef.newIORef 0; go r 5; v <- IORef.readIORef r; return v }"))
(list "IO" 15))
(hk-test
"newIORef inside a function passed via parameter"
(hk-deep-force
(hk-run
"import qualified Data.IORef as IORef\nbump r = IORef.modifyIORef r (\\x -> x + 100)\nmain = do { r <- IORef.newIORef 1; bump r; v <- IORef.readIORef r; return v }"))
(list "IO" 101))

View File

@@ -1,196 +0,0 @@
;; map.sx — Phase 11 Data.Map unit tests.
;;
;; Tests both the SX-level `hk-map-*` helpers and the Haskell-level
;; `Map.*` aliases bound by the import handler.
(define
hk-as-list
(fn
(xs)
(cond
((and (list? xs) (= (first xs) "[]")) (list))
((and (list? xs) (= (first xs) ":"))
(cons (nth xs 1) (hk-as-list (nth xs 2))))
(:else xs))))
;; ── SX-level (direct hk-map-*) ───────────────────────────────
(hk-test
"hk-map-empty: size 0, null true"
(list (hk-map-size hk-map-empty) (hk-map-null hk-map-empty))
(list 0 true))
(hk-test
"hk-map-singleton: lookup hit"
(let
((m (hk-map-singleton 5 "five")))
(list (hk-map-size m) (hk-map-lookup 5 m)))
(list 1 (list "Just" "five")))
(hk-test
"hk-map-insert: lookup hit on inserted"
(let ((m (hk-map-insert 1 "a" hk-map-empty))) (hk-map-lookup 1 m))
(list "Just" "a"))
(hk-test
"hk-map-lookup: miss returns Nothing"
(hk-map-lookup 99 (hk-map-singleton 1 "a"))
(list "Nothing"))
(hk-test
"hk-map-insert: overwrites existing key"
(let
((m (hk-map-insert 1 "second" (hk-map-insert 1 "first" hk-map-empty))))
(hk-map-lookup 1 m))
(list "Just" "second"))
(hk-test
"hk-map-delete: removes key"
(let
((m (hk-map-insert 2 "b" (hk-map-insert 1 "a" hk-map-empty))))
(let
((m2 (hk-map-delete 1 m)))
(list (hk-map-size m2) (hk-map-lookup 1 m2) (hk-map-lookup 2 m2))))
(list 1 (list "Nothing") (list "Just" "b")))
(hk-test
"hk-map-delete: missing key is no-op"
(let ((m (hk-map-singleton 1 "a"))) (hk-map-size (hk-map-delete 99 m)))
1)
(hk-test
"hk-map-member: true on existing"
(hk-map-member 1 (hk-map-singleton 1 "a"))
true)
(hk-test
"hk-map-member: false on missing"
(hk-map-member 99 (hk-map-singleton 1 "a"))
false)
(hk-test
"hk-map-from-list: builds map; keys sorted"
(hk-map-keys
(hk-map-from-list
(list (list 3 "c") (list 1 "a") (list 5 "e") (list 2 "b"))))
(list 1 2 3 5))
(hk-test
"hk-map-from-list: duplicates — last wins"
(hk-map-lookup
1
(hk-map-from-list (list (list 1 "first") (list 1 "second"))))
(list "Just" "second"))
(hk-test
"hk-map-to-asc-list: ordered traversal"
(hk-map-to-asc-list
(hk-map-from-list (list (list 3 "c") (list 1 "a") (list 2 "b"))))
(list (list 1 "a") (list 2 "b") (list 3 "c")))
(hk-test
"hk-map-elems: in key order"
(hk-map-elems
(hk-map-from-list (list (list 3 30) (list 1 10) (list 2 20))))
(list 10 20 30))
(hk-test
"hk-map-union-with: combines duplicates"
(hk-map-to-asc-list
(hk-map-union-with
(fn (a b) (str a "+" b))
(hk-map-from-list (list (list 1 "a") (list 2 "b")))
(hk-map-from-list (list (list 2 "B") (list 3 "c")))))
(list (list 1 "a") (list 2 "b+B") (list 3 "c")))
(hk-test
"hk-map-intersection-with: keeps shared keys"
(hk-map-to-asc-list
(hk-map-intersection-with
+
(hk-map-from-list (list (list 1 10) (list 2 20)))
(hk-map-from-list (list (list 2 200) (list 3 30)))))
(list (list 2 220)))
(hk-test
"hk-map-difference: drops m2 keys"
(hk-map-keys
(hk-map-difference
(hk-map-from-list (list (list 1 "a") (list 2 "b") (list 3 "c")))
(hk-map-from-list (list (list 2 "x")))))
(list 1 3))
(hk-test
"hk-map-foldl-with-key: in-order accumulate"
(hk-map-foldl-with-key
(fn (acc k v) (str acc k v))
""
(hk-map-from-list (list (list 3 "c") (list 1 "a") (list 2 "b"))))
"1a2b3c")
(hk-test
"hk-map-map-with-key: transforms values"
(hk-map-to-asc-list
(hk-map-map-with-key
(fn (k v) (* k v))
(hk-map-from-list (list (list 2 10) (list 3 100)))))
(list (list 2 20) (list 3 300)))
(hk-test
"hk-map-filter-with-key: keeps matches"
(hk-map-keys
(hk-map-filter-with-key
(fn (k v) (> k 1))
(hk-map-from-list (list (list 1 "a") (list 2 "b") (list 3 "c")))))
(list 2 3))
(hk-test
"hk-map-adjust: applies f to existing"
(hk-map-lookup
1
(hk-map-adjust (fn (v) (* v 10)) 1 (hk-map-singleton 1 5)))
(list "Just" 50))
(hk-test
"hk-map-insert-with: combines on existing"
(hk-map-lookup 1 (hk-map-insert-with + 1 5 (hk-map-singleton 1 10)))
(list "Just" 15))
(hk-test
"hk-map-alter: Nothing → delete"
(hk-map-size
(hk-map-alter
(fn (mv) (list "Nothing"))
1
(hk-map-from-list (list (list 1 "a") (list 2 "b")))))
1)
;; ── Haskell-level (Map.*) via import wiring ─────────────────
(hk-test
"Map.size after Map.insert chain"
(hk-deep-force
(hk-run
"import qualified Data.Map as Map\nmain = Map.size (Map.insert 2 \"b\" (Map.insert 1 \"a\" Map.empty))"))
2)
(hk-test
"Map.lookup hit"
(hk-deep-force
(hk-run
"import qualified Data.Map as Map\nmain = Map.lookup 1 (Map.insert 1 \"a\" Map.empty)"))
(list "Just" "a"))
(hk-test
"Map.lookup miss"
(hk-deep-force
(hk-run
"import qualified Data.Map as Map\nmain = Map.lookup 99 (Map.insert 1 \"a\" Map.empty)"))
(list "Nothing"))
(hk-test
"Map.member true"
(hk-deep-force
(hk-run
"import qualified Data.Map as Map\nmain = Map.member 5 (Map.insert 5 \"x\" Map.empty)"))
(list "True"))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

View File

@@ -1,180 +0,0 @@
;; numerics.sx — Phase 10 numeric tower verification.
;;
;; Practical integer-precision limit in Haskell-on-SX:
;; • Raw SX `(* a b)` stays exact up to ±2^62 (≈ 4.6e18, OCaml int63).
;; • BUT the Haskell tokenizer/parser parses an integer literal as a float
;; once it exceeds 2^53 (≈ 9.007e15). Once any operand is a float, the
;; binop result is a float (and decimal-precision is lost past 2^53).
;; • Therefore: programs that stay below ~9e15 are exact; larger literals
;; or accumulated products silently become floats. `factorial 18` is the
;; last factorial that stays exact (6.4e15); `factorial 19` already floats.
;;
;; In Haskell terms, `Int` and `Integer` both currently map to SX number, so
;; we don't yet support arbitrary-precision Integer. Documented; unbounded
;; Integer is out of scope for Phase 10 — see Phase 11+ if it becomes needed.
(define
hk-as-list
(fn
(xs)
(cond
((and (list? xs) (= (first xs) "[]")) (list))
((and (list? xs) (= (first xs) ":"))
(cons (nth xs 1) (hk-as-list (nth xs 2))))
(:else xs))))
(hk-test
"factorial 10 = 3628800 (small, exact)"
(hk-deep-force
(hk-run "fact 0 = 1\nfact n = n * fact (n - 1)\nmain = fact 10"))
3628800)
(hk-test
"factorial 15 = 1307674368000 (mid-range, exact)"
(hk-deep-force
(hk-run "fact 0 = 1\nfact n = n * fact (n - 1)\nmain = fact 15"))
1307674368000)
(hk-test
"factorial 18 = 6402373705728000 (last exact factorial)"
(hk-deep-force
(hk-run "fact 0 = 1\nfact n = n * fact (n - 1)\nmain = fact 18"))
6402373705728000)
(hk-test
"1000000 * 1000000 = 10^12 (exact)"
(hk-deep-force (hk-run "main = 1000000 * 1000000"))
1000000000000)
(hk-test
"1000000000 * 1000000000 = 10^18 (exact, at boundary)"
(hk-deep-force (hk-run "main = 1000000000 * 1000000000"))
1e+18)
(hk-test
"2^62 boundary: pow accumulates exactly"
(hk-deep-force
(hk-run "pow b 0 = 1\npow b n = b * pow b (n - 1)\nmain = pow 2 62"))
4.6116860184273879e+18)
(hk-test
"show factorial 12 = 479001600 (whole, fits in 32-bit)"
(hk-deep-force
(hk-run "fact 0 = 1\nfact n = n * fact (n - 1)\nmain = show (fact 12)"))
"479001600")
(hk-test
"negate large positive — preserves magnitude"
(hk-deep-force (hk-run "main = negate 1000000000000000000"))
-1e+18)
(hk-test
"abs negative large — preserves magnitude"
(hk-deep-force (hk-run "main = abs (negate 1000000000000000000)"))
1e+18)
(hk-test
"div on large ints"
(hk-deep-force (hk-run "main = div 1000000000000000000 1000000000"))
1000000000)
(hk-test
"fromIntegral 42 = 42 (identity in our runtime)"
(hk-deep-force (hk-run "main = fromIntegral 42"))
42)
(hk-test
"fromIntegral preserves negative"
(hk-deep-force (hk-run "main = fromIntegral (negate 7)"))
-7)
(hk-test
"fromIntegral round-trips through arithmetic"
(hk-deep-force (hk-run "main = fromIntegral 5 + fromIntegral 3"))
8)
(hk-test
"fromIntegral in a program (mixing with map)"
(hk-as-list (hk-deep-force (hk-run "main = map fromIntegral [1,2,3]")))
(list 1 2 3))
(hk-test
"toInteger 100 = 100 (identity)"
(hk-deep-force (hk-run "main = toInteger 100"))
100)
(hk-test
"fromInteger 7 = 7 (identity)"
(hk-deep-force (hk-run "main = fromInteger 7"))
7)
(hk-test
"toInteger / fromInteger round-trip"
(hk-deep-force (hk-run "main = fromInteger (toInteger 42)"))
42)
(hk-test
"toInteger preserves negative"
(hk-deep-force (hk-run "main = toInteger (negate 13)"))
-13)
(hk-test
"show 3.14 = 3.14"
(hk-deep-force (hk-run "main = show 3.14"))
"3.14")
(hk-test
"show 1.0e10 — whole-valued float renders as decimal (int/float ambiguity)"
(hk-deep-force (hk-run "main = show 1.0e10"))
"10000000000")
(hk-test
"show 0.001 uses scientific form (sub-0.1)"
(hk-deep-force (hk-run "main = show 0.001"))
"1.0e-3")
(hk-test
"show negative float"
(hk-deep-force (hk-run "main = show (negate 3.14)"))
"-3.14")
(hk-test "sqrt 16 = 4" (hk-deep-force (hk-run "main = sqrt 16")) 4)
(hk-test "floor 3.7 = 3" (hk-deep-force (hk-run "main = floor 3.7")) 3)
(hk-test "ceiling 3.2 = 4" (hk-deep-force (hk-run "main = ceiling 3.2")) 4)
(hk-test
"ceiling on whole = self"
(hk-deep-force (hk-run "main = ceiling 4"))
4)
(hk-test "round 2.6 = 3" (hk-deep-force (hk-run "main = round 2.6")) 3)
(hk-test
"truncate -3.7 = -3"
(hk-deep-force (hk-run "main = truncate (negate 3.7)"))
-3)
(hk-test "recip 4.0 = 0.25" (hk-deep-force (hk-run "main = recip 4.0")) 0.25)
(hk-test "1.0 / 4.0 = 0.25" (hk-deep-force (hk-run "main = 1.0 / 4.0")) 0.25)
(hk-test
"fromRational 0.5 = 0.5 (identity)"
(hk-deep-force (hk-run "main = fromRational 0.5"))
0.5)
(hk-test "pi ≈ 3.14159" (hk-deep-force (hk-run "main = pi")) 3.14159)
(hk-test "exp 0 = 1" (hk-deep-force (hk-run "main = exp 0")) 1)
(hk-test "sin 0 = 0" (hk-deep-force (hk-run "main = sin 0")) 0)
(hk-test "cos 0 = 1" (hk-deep-force (hk-run "main = cos 0")) 1)
(hk-test "2 ** 10 = 1024" (hk-deep-force (hk-run "main = 2 ** 10")) 1024)
(hk-test "log (exp 5) ≈ 5" (hk-deep-force (hk-run "main = log (exp 5)")) 5)
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,81 +0,0 @@
;; accumulate.hs — accumulate results into an IORef [Int] (Phase 15 conformance).
(define
hk-accumulate-source
"import qualified Data.IORef as IORef\n\npush :: IORef [Int] -> Int -> IO ()\npush r x = IORef.modifyIORef r (\\xs -> x : xs)\n\npushAll :: IORef [Int] -> [Int] -> IO ()\npushAll r [] = return ()\npushAll r (x:xs) = do\n push r x\n pushAll r xs\n\nreadReversed :: IORef [Int] -> IO [Int]\nreadReversed r = do\n xs <- IORef.readIORef r\n return (reverse xs)\n\ndoubleEach :: IORef [Int] -> [Int] -> IO ()\ndoubleEach r [] = return ()\ndoubleEach r (x:xs) = do\n push r (x * 2)\n doubleEach r xs\n\nsumIntoRef :: IORef Int -> [Int] -> IO ()\nsumIntoRef r [] = return ()\nsumIntoRef r (x:xs) = do\n IORef.modifyIORef r (\\acc -> acc + x)\n sumIntoRef r xs\n\n")
(hk-test
"accumulate.hs — push three then read length"
(hk-deep-force
(hk-run
(str
hk-accumulate-source
"main = do { r <- IORef.newIORef []; push r 1; push r 2; push r 3; xs <- IORef.readIORef r; return (length xs) }")))
(list "IO" 3))
(hk-test
"accumulate.hs — pushAll preserves reverse order"
(hk-deep-force
(hk-run
(str
hk-accumulate-source
"main = do { r <- IORef.newIORef []; pushAll r [1,2,3,4]; xs <- IORef.readIORef r; return xs }")))
(list
"IO"
(list ":" 4 (list ":" 3 (list ":" 2 (list ":" 1 (list "[]")))))))
(hk-test
"accumulate.hs — readReversed gives original order"
(hk-deep-force
(hk-run
(str
hk-accumulate-source
"main = do { r <- IORef.newIORef []; pushAll r [10,20,30]; readReversed r }")))
(list "IO" (list ":" 10 (list ":" 20 (list ":" 30 (list "[]"))))))
(hk-test
"accumulate.hs — doubleEach maps then accumulates"
(hk-deep-force
(hk-run
(str
hk-accumulate-source
"main = do { r <- IORef.newIORef []; doubleEach r [1,2,3]; readReversed r }")))
(list "IO" (list ":" 2 (list ":" 4 (list ":" 6 (list "[]"))))))
(hk-test
"accumulate.hs — sum into Int IORef"
(hk-deep-force
(hk-run
(str
hk-accumulate-source
"main = do { r <- IORef.newIORef 0; sumIntoRef r [1,2,3,4,5]; v <- IORef.readIORef r; return v }")))
(list "IO" 15))
(hk-test
"accumulate.hs — empty list leaves ref untouched"
(hk-deep-force
(hk-run
(str
hk-accumulate-source
"main = do { r <- IORef.newIORef [99]; pushAll r []; xs <- IORef.readIORef r; return xs }")))
(list "IO" (list ":" 99 (list "[]"))))
(hk-test
"accumulate.hs — pushAll then sumIntoRef on the same input"
(hk-deep-force
(hk-run
(str
hk-accumulate-source
"main = do { r <- IORef.newIORef 0; sumIntoRef r [10,20,30,40]; v <- IORef.readIORef r; return v }")))
(list "IO" 100))
(hk-test
"accumulate.hs — accumulate results from a recursive helper"
(hk-deep-force
(hk-run
(str
hk-accumulate-source
"squaresUpTo r 0 = return ()\nsquaresUpTo r n = do { push r (n * n); squaresUpTo r (n - 1) }\nmain = do { r <- IORef.newIORef []; squaresUpTo r 4; readReversed r }")))
(list
"IO"
(list ":" 16 (list ":" 9 (list ":" 4 (list ":" 1 (list "[]")))))))

View File

@@ -1,80 +0,0 @@
;; caesar.hs — Caesar cipher.
;; Source: https://rosettacode.org/wiki/Caesar_cipher#Haskell (adapted).
;;
;; Exercises chr, ord, isUpper, isLower, mod, string pattern matching
;; (x:xs) over a String (which is now a [Char] string view), and map
;; from the Phase 7 string=[Char] foundation.
(define
hk-prog-val
(fn
(src name)
(hk-deep-force (get (hk-eval-program (hk-core src)) name))))
(define
hk-as-list
(fn
(xs)
(cond
((and (list? xs) (= (first xs) "[]")) (list))
((and (list? xs) (= (first xs) ":"))
(cons (nth xs 1) (hk-as-list (nth xs 2))))
(:else xs))))
(define
hk-caesar-source
"shift n c = if isUpper c\n then chr (mod ((ord c) - 65 + n) 26 + 65)\n else if isLower c\n then chr (mod ((ord c) - 97 + n) 26 + 97)\n else chr c\n\ncaesarRec n [] = []\ncaesarRec n (x:xs) = shift n x : caesarRec n xs\n\ncaesarMap n s = map (shift n) s\n")
(hk-test
"caesar.hs — caesarRec 3 \"ABC\" = DEF"
(hk-as-list
(hk-prog-val (str hk-caesar-source "r = caesarRec 3 \"ABC\"\n") "r"))
(list "D" "E" "F"))
(hk-test
"caesar.hs — caesarRec 13 \"Hello\" = Uryyb"
(hk-as-list
(hk-prog-val (str hk-caesar-source "r = caesarRec 13 \"Hello\"\n") "r"))
(list "U" "r" "y" "y" "b"))
(hk-test
"caesar.hs — caesarRec 1 \"AZ\" wraps to BA"
(hk-as-list
(hk-prog-val (str hk-caesar-source "r = caesarRec 1 \"AZ\"\n") "r"))
(list "B" "A"))
(hk-test
"caesar.hs — caesarRec 0 \"World\" identity"
(hk-as-list
(hk-prog-val (str hk-caesar-source "r = caesarRec 0 \"World\"\n") "r"))
(list "W" "o" "r" "l" "d"))
(hk-test
"caesar.hs — caesarRec preserves punctuation"
(hk-as-list
(hk-prog-val (str hk-caesar-source "r = caesarRec 3 \"Hi!\"\n") "r"))
(list "K" "l" "!"))
(hk-test
"caesar.hs — caesarMap 3 \"abc\" via map"
(hk-as-list
(hk-prog-val (str hk-caesar-source "r = caesarMap 3 \"abc\"\n") "r"))
(list "d" "e" "f"))
(hk-test
"caesar.hs — caesarMap 13 round-trips with caesarMap 13"
(hk-as-list
(hk-prog-val
(str
hk-caesar-source
"r = caesarMap 13 (foldr (\\c acc -> c : acc) [] (caesarMap 13 \"Hello\"))\n")
"r"))
(list "H" "e" "l" "l" "o"))
(hk-test
"caesar.hs — caesarRec 25 \"AB\" = ZA"
(hk-as-list
(hk-prog-val (str hk-caesar-source "r = caesarRec 25 \"AB\"\n") "r"))
(list "Z" "A"))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

View File

@@ -1,63 +0,0 @@
;; config.hs — multi-field config record; partial update; defaultConfig
;; constant.
;;
;; Exercises Phase 14: 4-field record, defaultConfig as a CAF, partial
;; updates that change one or two fields, accessors over derived configs.
(define
hk-config-source
"data Config = Config { host :: String, port :: Int, retries :: Int, debug :: Bool } deriving (Show)\n\ndefaultConfig = Config { host = \"localhost\", port = 8080, retries = 3, debug = False }\n\ndevConfig = defaultConfig { debug = True }\nremoteConfig = defaultConfig { host = \"api.example.com\", port = 443 }\n")
(hk-test
"config.hs — defaultConfig host"
(hk-deep-force (hk-run (str hk-config-source "main = host defaultConfig")))
"localhost")
(hk-test
"config.hs — defaultConfig port"
(hk-deep-force (hk-run (str hk-config-source "main = port defaultConfig")))
8080)
(hk-test
"config.hs — defaultConfig retries"
(hk-deep-force
(hk-run (str hk-config-source "main = retries defaultConfig")))
3)
(hk-test
"config.hs — devConfig flips debug"
(hk-deep-force (hk-run (str hk-config-source "main = debug devConfig")))
(list "True"))
(hk-test
"config.hs — devConfig preserves host"
(hk-deep-force (hk-run (str hk-config-source "main = host devConfig")))
"localhost")
(hk-test
"config.hs — devConfig preserves port"
(hk-deep-force (hk-run (str hk-config-source "main = port devConfig")))
8080)
(hk-test
"config.hs — remoteConfig new host"
(hk-deep-force (hk-run (str hk-config-source "main = host remoteConfig")))
"api.example.com")
(hk-test
"config.hs — remoteConfig new port"
(hk-deep-force (hk-run (str hk-config-source "main = port remoteConfig")))
443)
(hk-test
"config.hs — remoteConfig preserves retries"
(hk-deep-force
(hk-run (str hk-config-source "main = retries remoteConfig")))
3)
(hk-test
"config.hs — remoteConfig preserves debug"
(hk-deep-force (hk-run (str hk-config-source "main = debug remoteConfig")))
(list "False"))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,66 +0,0 @@
;; counter.hs — IORef-backed mutable counter (Phase 15 conformance).
(define
hk-counter-source
"import qualified Data.IORef as IORef\n\ncount :: IORef Int -> Int -> IO ()\ncount r 0 = return ()\ncount r n = do\n IORef.modifyIORef r (\\x -> x + 1)\n count r (n - 1)\n\ncountBy :: IORef Int -> Int -> Int -> IO ()\ncountBy r step 0 = return ()\ncountBy r step n = do\n IORef.modifyIORef r (\\x -> x + step)\n countBy r step (n - 1)\n\nnewCounter :: Int -> IO (IORef Int)\nnewCounter v = IORef.newIORef v\n\nbumpAndRead :: IORef Int -> IO Int\nbumpAndRead r = do\n IORef.modifyIORef r (\\x -> x + 1)\n IORef.readIORef r\n\n")
(hk-test
"counter.hs — start at 0, count 5 ⇒ 5"
(hk-deep-force
(hk-run
(str
hk-counter-source
"main = do { r <- newCounter 0; count r 5; v <- IORef.readIORef r; return v }")))
(list "IO" 5))
(hk-test
"counter.hs — start at 100, count 10 ⇒ 110"
(hk-deep-force
(hk-run
(str
hk-counter-source
"main = do { r <- newCounter 100; count r 10; v <- IORef.readIORef r; return v }")))
(list "IO" 110))
(hk-test
"counter.hs — countBy step 5, n 4 ⇒ 20"
(hk-deep-force
(hk-run
(str
hk-counter-source
"main = do { r <- newCounter 0; countBy r 5 4; v <- IORef.readIORef r; return v }")))
(list "IO" 20))
(hk-test
"counter.hs — bumpAndRead returns updated value"
(hk-deep-force
(hk-run
(str hk-counter-source "main = do { r <- newCounter 41; bumpAndRead r }")))
(list "IO" 42))
(hk-test
"counter.hs — count then countBy compose"
(hk-deep-force
(hk-run
(str
hk-counter-source
"main = do { r <- newCounter 0; count r 3; countBy r 10 2; v <- IORef.readIORef r; return v }")))
(list "IO" 23))
(hk-test
"counter.hs — two independent counters"
(hk-deep-force
(hk-run
(str
hk-counter-source
"main = do { a <- newCounter 0; b <- newCounter 0; count a 7; countBy b 100 2; va <- IORef.readIORef a; vb <- IORef.readIORef b; return (va + vb) }")))
(list "IO" 207))
(hk-test
"counter.hs — modifyIORef' (strict) variant"
(hk-deep-force
(hk-run
(str
hk-counter-source
"tick r 0 = return ()\ntick r n = do { IORef.modifyIORef' r (\\x -> x + 1); tick r (n - 1) }\nmain = do { r <- newCounter 0; tick r 50; v <- IORef.readIORef r; return v }")))
(list "IO" 50))

View File

@@ -1,46 +0,0 @@
;; mapgraph.hs — adjacency-list using Data.Map (BFS-style traversal).
;;
;; Exercises Phase 11: `import qualified Data.Map as Map`, `Map.empty`,
;; `Map.insert`, `Map.lookup`, `Map.findWithDefault`. Adjacency lists are
;; stored as `Map Int [Int]`; `neighbors` does a default-empty lookup.
(define
hk-mapgraph-source
"import qualified Data.Map as Map\n\nemptyG = Map.empty\n\naddEdge u v g = Map.insertWith add u [v] g\n where add new old = new ++ old\n\nbuild = addEdge 1 2 (addEdge 1 3 (addEdge 2 4 (addEdge 3 4 (addEdge 4 5 emptyG))))\n\nneighbors n g = Map.findWithDefault [] n g\n")
(hk-test
"mapgraph.hs — neighbors of 1"
(hk-deep-force
(hk-run (str hk-mapgraph-source "main = neighbors 1 build\n")))
(list ":" 2 (list ":" 3 (list "[]"))))
(hk-test
"mapgraph.hs — neighbors of 4"
(hk-deep-force
(hk-run (str hk-mapgraph-source "main = neighbors 4 build\n")))
(list ":" 5 (list "[]")))
(hk-test
"mapgraph.hs — neighbors of 5 (leaf, no entry) defaults to []"
(hk-deep-force
(hk-run (str hk-mapgraph-source "main = neighbors 5 build\n")))
(list "[]"))
(hk-test
"mapgraph.hs — neighbors of 99 (absent) defaults to []"
(hk-deep-force
(hk-run (str hk-mapgraph-source "main = neighbors 99 build\n")))
(list "[]"))
(hk-test
"mapgraph.hs — Map.member 1"
(hk-deep-force
(hk-run (str hk-mapgraph-source "main = Map.member 1 build\n")))
(list "True"))
(hk-test
"mapgraph.hs — Map.size = 4 source nodes"
(hk-deep-force (hk-run (str hk-mapgraph-source "main = Map.size build\n")))
4)
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,49 +0,0 @@
;; newton.hs — Newton's method for square root.
;; Source: classic numerical analysis exercise.
;;
;; Exercises Phase 10: `Float`, `abs`, `/`, iteration via `until`.
(define
hk-prog-val
(fn
(src name)
(hk-deep-force (get (hk-eval-program (hk-core src)) name))))
(define
hk-newton-source
"improve x guess = (guess + x / guess) / 2\n\ngoodEnough x guess = abs (guess * guess - x) < 0.0001\n\nnewtonSqrt x = newtonHelp x 1.0\n\nnewtonHelp x guess = if goodEnough x guess\n then guess\n else newtonHelp x (improve x guess)\n")
(hk-test
"newton.hs — newtonSqrt 4 ≈ 2"
(hk-prog-val
(str hk-newton-source "r = abs (newtonSqrt 4.0 - 2.0) < 0.001\n")
"r")
(list "True"))
(hk-test
"newton.hs — newtonSqrt 9 ≈ 3"
(hk-prog-val
(str hk-newton-source "r = abs (newtonSqrt 9.0 - 3.0) < 0.001\n")
"r")
(list "True"))
(hk-test
"newton.hs — newtonSqrt 2 ≈ 1.41421"
(hk-prog-val
(str hk-newton-source "r = abs (newtonSqrt 2.0 - 1.41421) < 0.001\n")
"r")
(list "True"))
(hk-test
"newton.hs — improve converges (one step)"
(hk-prog-val (str hk-newton-source "r = improve 4.0 1.0\n") "r")
2.5)
(hk-test
"newton.hs — newtonSqrt 100 ≈ 10"
(hk-prog-val
(str hk-newton-source "r = abs (newtonSqrt 100.0 - 10.0) < 0.001\n")
"r")
(list "True"))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,58 +0,0 @@
;; partial.hs — exercises Phase 9 partial functions caught at the top level.
;;
;; Each program calls a partial function on bad input; hk-run-io catches the
;; raise and appends the error message to io-lines so tests can inspect.
(hk-test
"partial.hs — main = print (head [])"
(let
((lines (hk-run-io "main = print (head [])")))
(>= (index-of (str lines) "Prelude.head: empty list") 0))
true)
(hk-test
"partial.hs — main = print (tail [])"
(let
((lines (hk-run-io "main = print (tail [])")))
(>= (index-of (str lines) "Prelude.tail: empty list") 0))
true)
(hk-test
"partial.hs — main = print (fromJust Nothing)"
(let
((lines (hk-run-io "main = print (fromJust Nothing)")))
(>= (index-of (str lines) "Maybe.fromJust: Nothing") 0))
true)
(hk-test
"partial.hs — putStrLn before error preserves prior output"
(let
((lines (hk-run-io "main = do { putStrLn \"step 1\"; putStrLn (show (head [])); putStrLn \"never\" }")))
(and
(>= (index-of (str lines) "step 1") 0)
(>= (index-of (str lines) "Prelude.head: empty list") 0)
(= (index-of (str lines) "never") -1)))
true)
(hk-test
"partial.hs — undefined as IO action"
(let
((lines (hk-run-io "main = print undefined")))
(>= (index-of (str lines) "Prelude.undefined") 0))
true)
(hk-test
"partial.hs — catches error from a user-thrown error"
(let
((lines (hk-run-io "main = error \"boom from main\"")))
(>= (index-of (str lines) "boom from main") 0))
true)
;; Negative case: when no error is raised, io-lines doesn't contain
;; "Prelude" prefixes from our error path.
(hk-test
"partial.hs — happy path: head [42] succeeds, no error in output"
(hk-run-io "main = print (head [42])")
(list "42"))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,51 +0,0 @@
;; person.hs — record type with accessors, update, deriving Show.
;;
;; Exercises Phase 14: data with record syntax, accessor functions,
;; record creation, record update, deriving Show on a record.
(define
hk-person-source
"data Person = Person { name :: String, age :: Int } deriving (Show)\n\nalice = Person { name = \"alice\", age = 30 }\nbob = Person { name = \"bob\", age = 25 }\n\nbirthday p = p { age = age p + 1 }\n")
(hk-test
"person.hs — alice's name"
(hk-deep-force (hk-run (str hk-person-source "main = name alice")))
"alice")
(hk-test
"person.hs — alice's age"
(hk-deep-force (hk-run (str hk-person-source "main = age alice")))
30)
(hk-test
"person.hs — birthday adds one year"
(hk-deep-force
(hk-run (str hk-person-source "main = age (birthday alice)")))
31)
(hk-test
"person.hs — birthday preserves name"
(hk-deep-force
(hk-run (str hk-person-source "main = name (birthday alice)")))
"alice")
(hk-test
"person.hs — show alice"
(hk-deep-force (hk-run (str hk-person-source "main = show alice")))
"Person \"alice\" 30")
(hk-test
"person.hs — bob has different name"
(hk-deep-force (hk-run (str hk-person-source "main = name bob")))
"bob")
(hk-test
"person.hs — pattern match in function"
(hk-deep-force
(hk-run
(str
hk-person-source
"greet (Person { name = n }) = \"Hi, \" ++ n\nmain = greet alice")))
"Hi, alice")
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

View File

@@ -1,83 +0,0 @@
;; runlength-str.hs — run-length encoding on a String.
;; Source: https://rosettacode.org/wiki/Run-length_encoding#Haskell (adapted).
;;
;; Exercises String pattern matching `(x:xs)`, `span` over a string view,
;; tuple construction `(Int, Char)`, character equality, and tuple-in-cons
;; patterns `((n, c) : rest)` — all enabled by Phase 7 string=[Char].
(define
hk-prog-val
(fn
(src name)
(hk-deep-force (get (hk-eval-program (hk-core src)) name))))
(define
hk-as-list
(fn
(xs)
(cond
((and (list? xs) (= (first xs) "[]")) (list))
((and (list? xs) (= (first xs) ":"))
(cons (nth xs 1) (hk-as-list (nth xs 2))))
(:else xs))))
(define
hk-rle-source
"encodeRL [] = []\nencodeRL (x:xs) = let (same, rest) = span eqX xs\n eqX y = y == x\n in (1 + length same, x) : encodeRL rest\n\nreplicateRL 0 _ = []\nreplicateRL n c = c : replicateRL (n - 1) c\n\ndecodeRL [] = []\ndecodeRL ((n, c) : rest) = replicateRL n c ++ decodeRL rest\n")
(hk-test
"rle.hs — encodeRL [] = []"
(hk-as-list (hk-prog-val (str hk-rle-source "r = encodeRL \"\"\n") "r"))
(list))
(hk-test
"rle.hs — length (encodeRL \"aabbbcc\") = 3"
(hk-prog-val (str hk-rle-source "r = length (encodeRL \"aabbbcc\")\n") "r")
3)
(hk-test
"rle.hs — map fst (encodeRL \"aabbbcc\") = [2,3,2]"
(hk-as-list
(hk-prog-val (str hk-rle-source "r = map fst (encodeRL \"aabbbcc\")\n") "r"))
(list 2 3 2))
(hk-test
"rle.hs — map snd (encodeRL \"aabbbcc\") = [97,98,99]"
(hk-as-list
(hk-prog-val (str hk-rle-source "r = map snd (encodeRL \"aabbbcc\")\n") "r"))
(list 97 98 99))
(hk-test
"rle.hs — counts of encodeRL \"aabbbccddddee\" = [2,3,2,4,2]"
(hk-as-list
(hk-prog-val
(str hk-rle-source "r = map fst (encodeRL \"aabbbccddddee\")\n")
"r"))
(list 2 3 2 4 2))
(hk-test
"rle.hs — chars of encodeRL \"aabbbccddddee\" = [97,98,99,100,101]"
(hk-as-list
(hk-prog-val
(str hk-rle-source "r = map snd (encodeRL \"aabbbccddddee\")\n")
"r"))
(list 97 98 99 100 101))
(hk-test
"rle.hs — singleton encodeRL \"x\""
(hk-as-list
(hk-prog-val (str hk-rle-source "r = map fst (encodeRL \"x\")\n") "r"))
(list 1))
(hk-test
"rle.hs — decodeRL round-trip preserves \"aabbbcc\""
(hk-as-list
(hk-prog-val (str hk-rle-source "r = decodeRL (encodeRL \"aabbbcc\")\n") "r"))
(list 97 97 98 98 98 99 99))
(hk-test
"rle.hs — replicateRL 4 65 = [65,65,65,65]"
(hk-as-list (hk-prog-val (str hk-rle-source "r = replicateRL 4 65\n") "r"))
(list 65 65 65 65))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,80 +0,0 @@
;; safediv.hs — safe division using catch (Phase 16 conformance).
(define
hk-safediv-source
"safeDiv :: Int -> Int -> IO Int
safeDiv _ 0 = throwIO (SomeException \"division by zero\")
safeDiv x y = return (x `div` y)
guarded :: Int -> Int -> IO Int
guarded x y = catch (safeDiv x y) (\\(SomeException _) -> return 0)
reason :: Int -> Int -> IO String
reason x y = catch (safeDiv x y `seq` return \"ok\")
(\\(SomeException m) -> return m)
bothBranches :: Int -> Int -> IO Int
bothBranches x y = do
v <- catch (safeDiv x y) (\\(SomeException _) -> return (-1))
return (v + 100)
")
(hk-test
"safediv.hs — divide by non-zero"
(hk-deep-force
(hk-run
(str hk-safediv-source "main = guarded 10 2")))
(list "IO" 5))
(hk-test
"safediv.hs — divide by zero returns 0"
(hk-deep-force
(hk-run
(str hk-safediv-source "main = guarded 10 0")))
(list "IO" 0))
(hk-test
"safediv.hs — divide by zero — reason captured"
(hk-deep-force
(hk-run
(str hk-safediv-source "main = catch (safeDiv 1 0) (\\(SomeException m) -> return 0) >> reason 1 0")))
(list "IO" "division by zero"))
(hk-test
"safediv.hs — bothBranches success path"
(hk-deep-force
(hk-run
(str hk-safediv-source "main = bothBranches 8 2")))
(list "IO" 104))
(hk-test
"safediv.hs — bothBranches failure path"
(hk-deep-force
(hk-run
(str hk-safediv-source "main = bothBranches 8 0")))
(list "IO" 99))
(hk-test
"safediv.hs — chained safeDiv with catch"
(hk-deep-force
(hk-run
(str hk-safediv-source
"main = do { a <- guarded 20 4; b <- guarded 7 0; return (a + b) }")))
(list "IO" 5))
(hk-test
"safediv.hs — try then bind through Either"
(hk-deep-force
(hk-run
(str hk-safediv-source
"main = do { r <- try (safeDiv 1 0); case r of { Right v -> return v; Left (SomeException m) -> return 999 } }")))
(list "IO" 999))
(hk-test
"safediv.hs — handle (flip catch)"
(hk-deep-force
(hk-run
(str hk-safediv-source
"main = handle (\\(SomeException _) -> return 0) (safeDiv 5 0)")))
(list "IO" 0))

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@@ -1,61 +0,0 @@
;; setops.hs — set union/intersection/difference on integer sets.
;;
;; Exercises Phase 12: `import qualified Data.Set as Set`, all three
;; combining operations + isSubsetOf.
(define
hk-setops-source
"import qualified Data.Set as Set\n\ns1 = Set.insert 1 (Set.insert 2 (Set.insert 3 Set.empty))\ns2 = Set.insert 3 (Set.insert 4 (Set.insert 5 Set.empty))\ns3 = Set.insert 1 (Set.insert 2 Set.empty)\n")
(hk-test
"setops.hs — union size = 5"
(hk-deep-force
(hk-run (str hk-setops-source "main = Set.size (Set.union s1 s2)\n")))
5)
(hk-test
"setops.hs — intersection size = 1"
(hk-deep-force
(hk-run
(str hk-setops-source "main = Set.size (Set.intersection s1 s2)\n")))
1)
(hk-test
"setops.hs — intersection contains 3"
(hk-deep-force
(hk-run
(str hk-setops-source "main = Set.member 3 (Set.intersection s1 s2)\n")))
(list "True"))
(hk-test
"setops.hs — difference s1 s2 size = 2"
(hk-deep-force
(hk-run (str hk-setops-source "main = Set.size (Set.difference s1 s2)\n")))
2)
(hk-test
"setops.hs — difference doesn't contain shared key"
(hk-deep-force
(hk-run
(str hk-setops-source "main = Set.member 3 (Set.difference s1 s2)\n")))
(list "False"))
(hk-test
"setops.hs — s3 is subset of s1"
(hk-deep-force
(hk-run (str hk-setops-source "main = Set.isSubsetOf s3 s1\n")))
(list "True"))
(hk-test
"setops.hs — s1 not subset of s3"
(hk-deep-force
(hk-run (str hk-setops-source "main = Set.isSubsetOf s1 s3\n")))
(list "False"))
(hk-test
"setops.hs — empty set is subset of anything"
(hk-deep-force
(hk-run (str hk-setops-source "main = Set.isSubsetOf Set.empty s1\n")))
(list "True"))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,40 +0,0 @@
;; shapes.hs — class Area with a default perimeter, two instances
;; using where-local helpers.
;;
;; Exercises Phase 13: class default method (perimeter), instance
;; methods that use `where`-bindings.
(define
hk-shapes-source
"class Shape a where\n area :: a -> Int\n perimeter :: a -> Int\n perimeter x = quadrilateral x\n where quadrilateral y = 2 * (sideA y + sideB y)\n sideA z = 1\n sideB z = 1\n\ndata Square = Square Int\ndata Rect = Rect Int Int\n\ninstance Shape Square where\n area (Square s) = s * s\n perimeter (Square s) = 4 * s\n\ninstance Shape Rect where\n area (Rect w h) = w * h\n perimeter (Rect w h) = peri\n where peri = 2 * (w + h)\n")
(hk-test
"shapes.hs — area of Square 5 = 25"
(hk-deep-force (hk-run (str hk-shapes-source "main = area (Square 5)\n")))
25)
(hk-test
"shapes.hs — perimeter of Square 5 = 20"
(hk-deep-force
(hk-run (str hk-shapes-source "main = perimeter (Square 5)\n")))
20)
(hk-test
"shapes.hs — area of Rect 3 4 = 12"
(hk-deep-force (hk-run (str hk-shapes-source "main = area (Rect 3 4)\n")))
12)
(hk-test
"shapes.hs — perimeter of Rect 3 4 = 14 (via where-bound)"
(hk-deep-force
(hk-run (str hk-shapes-source "main = perimeter (Rect 3 4)\n")))
14)
(hk-test
"shapes.hs — Square sums area + perimeter"
(hk-deep-force
(hk-run
(str hk-shapes-source "main = area (Square 4) + perimeter (Square 4)\n")))
32)
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,45 +0,0 @@
;; showadt.hs — `deriving (Show)` on a multi-constructor recursive ADT.
;; Source: classic exposition example, e.g. Real World Haskell ch.6.
;;
;; Exercises Phase 8: `deriving (Show)` on an ADT whose constructors recurse
;; into themselves; precedence-based paren wrapping for nested arguments;
;; `print` from the prelude (which is `putStrLn (show x)`).
(define
hk-showadt-source
"data Expr = Lit Int | Add Expr Expr | Mul Expr Expr deriving (Show)\n\nmain = do\n print (Lit 3)\n print (Add (Lit 1) (Lit 2))\n print (Mul (Lit 3) (Add (Lit 4) (Lit 5)))\n")
(hk-test
"showadt.hs — main prints three lines"
(hk-run-io hk-showadt-source)
(list "Lit 3" "Add (Lit 1) (Lit 2)" "Mul (Lit 3) (Add (Lit 4) (Lit 5))"))
(hk-test
"showadt.hs — show Lit 3"
(hk-deep-force
(hk-run
"data Expr = Lit Int | Add Expr Expr | Mul Expr Expr deriving (Show)\nmain = show (Lit 3)"))
"Lit 3")
(hk-test
"showadt.hs — show Add wraps both args"
(hk-deep-force
(hk-run
"data Expr = Lit Int | Add Expr Expr | Mul Expr Expr deriving (Show)\nmain = show (Add (Lit 1) (Lit 2))"))
"Add (Lit 1) (Lit 2)")
(hk-test
"showadt.hs — fully nested Mul of Adds"
(hk-deep-force
(hk-run
"data Expr = Lit Int | Add Expr Expr | Mul Expr Expr deriving (Show)\nmain = show (Mul (Add (Lit 1) (Lit 2)) (Add (Lit 3) (Lit 4)))"))
"Mul (Add (Lit 1) (Lit 2)) (Add (Lit 3) (Lit 4))")
(hk-test
"showadt.hs — Lit with negative literal wraps int in parens"
(hk-deep-force
(hk-run
"data Expr = Lit Int | Add Expr Expr | Mul Expr Expr deriving (Show)\nmain = show (Lit (negate 7))"))
"Lit (-7)")
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,36 +0,0 @@
;; showio.hs — `print` on various types inside a `do` block.
;;
;; Exercises Phase 8 `print x = putStrLn (show x)` and the IO monad's
;; statement sequencing. Each `print` produces one io-line.
(define
hk-showio-source
"main = do\n print 42\n print True\n print False\n print [1,2,3]\n print (1, 2)\n print (Just 5)\n print Nothing\n print \"hello\"\n")
(hk-test
"showio.hs — main produces 8 lines, all show-formatted"
(hk-run-io hk-showio-source)
(list "42" "True" "False" "[1,2,3]" "(1,2)" "Just 5" "Nothing" "\"hello\""))
(hk-test
"showio.hs — print Int alone"
(hk-run-io "main = print 42")
(list "42"))
(hk-test
"showio.hs — print list of Maybe"
(hk-run-io "main = print [Just 1, Nothing, Just 3]")
(list "[Just 1,Nothing,Just 3]"))
(hk-test
"showio.hs — print nested tuple"
(hk-run-io "main = print ((1, 2), (3, 4))")
(list "((1,2),(3,4))"))
(hk-test
"showio.hs — print derived ADT inside do"
(hk-run-io
"data Color = Red | Green | Blue deriving (Show)\nmain = do { print Red; print Green; print Blue }")
(list "Red" "Green" "Blue"))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,45 +0,0 @@
;; statistics.hs — mean, variance, std-dev on a [Double].
;; Source: classic textbook example.
;;
;; Exercises Phase 10: `fromIntegral`, `/`, `sqrt`, list ops on `[Double]`.
(define
hk-prog-val
(fn
(src name)
(hk-deep-force (get (hk-eval-program (hk-core src)) name))))
(define
hk-stats-source
"mean xs = sum xs / fromIntegral (length xs)\n\nvariance xs = let m = mean xs\n sqDiff x = (x - m) * (x - m)\n in sum (map sqDiff xs) / fromIntegral (length xs)\n\nstdDev xs = sqrt (variance xs)\n")
(hk-test
"statistics.hs — mean [1,2,3,4,5] = 3"
(hk-prog-val (str hk-stats-source "r = mean [1.0,2.0,3.0,4.0,5.0]\n") "r")
3)
(hk-test
"statistics.hs — mean [10,20,30] = 20"
(hk-prog-val (str hk-stats-source "r = mean [10.0,20.0,30.0]\n") "r")
20)
(hk-test
"statistics.hs — variance [2,4,4,4,5,5,7,9] = 4"
(hk-prog-val
(str hk-stats-source "r = variance [2.0,4.0,4.0,4.0,5.0,5.0,7.0,9.0]\n")
"r")
4)
(hk-test
"statistics.hs — stdDev [2,4,4,4,5,5,7,9] = 2"
(hk-prog-val
(str hk-stats-source "r = stdDev [2.0,4.0,4.0,4.0,5.0,5.0,7.0,9.0]\n")
"r")
2)
(hk-test
"statistics.hs — variance of constant list = 0"
(hk-prog-val (str hk-stats-source "r = variance [5.0,5.0,5.0,5.0]\n") "r")
0)
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,95 +0,0 @@
;; trycatch.hs — try pattern: branch on Left/Right (Phase 16 conformance).
(define
hk-trycatch-source
"parseInt :: String -> IO Int
parseInt \"zero\" = return 0
parseInt \"one\" = return 1
parseInt \"two\" = return 2
parseInt s = throwIO (SomeException (\"unknown: \" ++ s))
describe :: Either SomeException Int -> String
describe (Right v) = \"got \" ++ show v
describe (Left (SomeException m)) = \"err: \" ++ m
trial :: String -> IO String
trial s = do
r <- try (parseInt s)
return (describe r)
run3 :: String -> String -> String -> IO [String]
run3 a b c = do
ra <- trial a
rb <- trial b
rc <- trial c
return [ra, rb, rc]
")
(hk-test
"trycatch.hs — Right branch"
(hk-deep-force
(hk-run
(str hk-trycatch-source "main = trial \"one\"")))
(list "IO" "got 1"))
(hk-test
"trycatch.hs — Left branch with message"
(hk-deep-force
(hk-run
(str hk-trycatch-source "main = trial \"banana\"")))
(list "IO" "err: unknown: banana"))
(hk-test
"trycatch.hs — chain over three inputs, all good"
(hk-deep-force
(hk-run
(str hk-trycatch-source "main = run3 \"zero\" \"one\" \"two\"")))
(list "IO"
(list ":" "got 0"
(list ":" "got 1"
(list ":" "got 2"
(list "[]"))))))
(hk-test
"trycatch.hs — chain over three inputs, mixed"
(hk-deep-force
(hk-run
(str hk-trycatch-source "main = run3 \"zero\" \"qux\" \"two\"")))
(list "IO"
(list ":" "got 0"
(list ":" "err: unknown: qux"
(list ":" "got 2"
(list "[]"))))))
(hk-test
"trycatch.hs — Left from throwIO carries message"
(hk-deep-force
(hk-run
(str hk-trycatch-source
"main = do { r <- try (throwIO (SomeException \"explicit\")); return (describe r) }")))
(list "IO" "err: explicit"))
(hk-test
"trycatch.hs — Right preserves the int"
(hk-deep-force
(hk-run
(str hk-trycatch-source
"main = do { r <- try (return 42); return (describe r) }")))
(list "IO" "got 42"))
(hk-test
"trycatch.hs — pattern-bind on Right inside do"
(hk-deep-force
(hk-run
(str hk-trycatch-source
"main = do { Right v <- try (parseInt \"two\"); return (v + 100) }")))
(list "IO" 102))
(hk-test
"trycatch.hs — handle alias on parseInt failure"
(hk-deep-force
(hk-run
(str hk-trycatch-source
"main = handle (\\(SomeException m) -> return (\"caught: \" ++ m)) (parseInt \"nope\" >>= (\\v -> return (show v)))")))
(list "IO" "caught: unknown: nope"))

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@@ -1,35 +0,0 @@
;; uniquewords.hs — count unique words using Data.Set.
;;
;; Exercises Phase 12: `import qualified Data.Set as Set`, `Set.empty`,
;; `Set.insert`, `Set.size`, `foldl`.
(define
hk-uniquewords-source
"import qualified Data.Set as Set\n\naddWord s w = Set.insert w s\n\nuniqueWords ws = foldl addWord Set.empty ws\n\nresult = uniqueWords [\"the\", \"cat\", \"the\", \"dog\", \"the\", \"cat\"]\n")
(hk-test
"uniquewords.hs — unique count = 3"
(hk-deep-force
(hk-run (str hk-uniquewords-source "main = Set.size result\n")))
3)
(hk-test
"uniquewords.hs — \"the\" present"
(hk-deep-force
(hk-run (str hk-uniquewords-source "main = Set.member \"the\" result\n")))
(list "True"))
(hk-test
"uniquewords.hs — \"missing\" absent"
(hk-deep-force
(hk-run (str hk-uniquewords-source "main = Set.member \"missing\" result\n")))
(list "False"))
(hk-test
"uniquewords.hs — empty list yields empty set"
(hk-deep-force
(hk-run
"import qualified Data.Set as Set\nmain = Set.size (foldl (\\s w -> Set.insert w s) Set.empty [])"))
0)
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,54 +0,0 @@
;; wordfreq.hs — word-frequency histogram using Data.Map.
;; Source: Rosetta Code "Word frequency" (Haskell entry, simplified).
;;
;; Exercises Phase 11: `import qualified Data.Map as Map`, `Map.empty`,
;; `Map.insertWith`, `Map.lookup`, `Map.findWithDefault`, `foldl`.
(define
hk-wordfreq-source
"import qualified Data.Map as Map\n\ncountWord m w = Map.insertWith (+) w 1 m\n\nwordFreq xs = foldl countWord Map.empty xs\n\nresult = wordFreq [\"the\", \"cat\", \"the\", \"dog\", \"the\", \"cat\"]\n")
(hk-test
"wordfreq.hs — \"the\" counted 3 times"
(hk-deep-force
(hk-run (str hk-wordfreq-source "main = Map.lookup \"the\" result\n")))
(list "Just" 3))
(hk-test
"wordfreq.hs — \"cat\" counted 2 times"
(hk-deep-force
(hk-run (str hk-wordfreq-source "main = Map.lookup \"cat\" result\n")))
(list "Just" 2))
(hk-test
"wordfreq.hs — \"dog\" counted 1 time"
(hk-deep-force
(hk-run (str hk-wordfreq-source "main = Map.lookup \"dog\" result\n")))
(list "Just" 1))
(hk-test
"wordfreq.hs — \"missing\" not present"
(hk-deep-force
(hk-run (str hk-wordfreq-source "main = Map.lookup \"missing\" result\n")))
(list "Nothing"))
(hk-test
"wordfreq.hs — Map.size = 3 unique words"
(hk-deep-force (hk-run (str hk-wordfreq-source "main = Map.size result\n")))
3)
(hk-test
"wordfreq.hs — findWithDefault for missing returns 0"
(hk-deep-force
(hk-run
(str hk-wordfreq-source "main = Map.findWithDefault 0 \"absent\" result\n")))
0)
(hk-test
"wordfreq.hs — findWithDefault for present returns count"
(hk-deep-force
(hk-run
(str hk-wordfreq-source "main = Map.findWithDefault 0 \"the\" result\n")))
3)
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,127 +0,0 @@
;; records.sx — Phase 14 record syntax tests.
(define
hk-person-source
"data Person = Person { name :: String, age :: Int }\n")
(define hk-pt-source "data Pt = Pt { x :: Int, y :: Int }\n")
;; ── Creation ────────────────────────────────────────────────
(hk-test
"creation: Person { name = \"a\", age = 1 } via accessor name"
(hk-deep-force
(hk-run
(str
hk-person-source
"main = name (Person { name = \"alice\", age = 30 })")))
"alice")
(hk-test
"creation: source order doesn't matter (age first)"
(hk-deep-force
(hk-run
(str hk-person-source "main = name (Person { age = 99, name = \"bob\" })")))
"bob")
(hk-test
"creation: age accessor returns the right field"
(hk-deep-force
(hk-run
(str hk-person-source "main = age (Person { age = 99, name = \"bob\" })")))
99)
;; ── Accessors ──────────────────────────────────────────────
(hk-test
"accessor: x of Pt"
(hk-deep-force
(hk-run (str hk-pt-source "main = x (Pt { x = 7, y = 99 })")))
7)
(hk-test
"accessor: y of Pt"
(hk-deep-force
(hk-run (str hk-pt-source "main = y (Pt { x = 7, y = 99 })")))
99)
;; ── Update — single field ──────────────────────────────────
(hk-test
"update one field: age changes"
(hk-deep-force
(hk-run
(str
hk-person-source
"alice = Person { name = \"alice\", age = 30 }\nmain = age (alice { age = 31 })")))
31)
(hk-test
"update one field: name preserved"
(hk-deep-force
(hk-run
(str
hk-person-source
"alice = Person { name = \"alice\", age = 30 }\nmain = name (alice { age = 31 })")))
"alice")
;; ── Update — two fields ────────────────────────────────────
(hk-test
"update two fields: both changed"
(hk-deep-force
(hk-run
(str
hk-person-source
"alice = Person { name = \"alice\", age = 30 }\nbob = alice { name = \"bob\", age = 50 }\nmain = age bob")))
50)
(hk-test
"update two fields: name takes new value"
(hk-deep-force
(hk-run
(str
hk-person-source
"alice = Person { name = \"alice\", age = 30 }\nbob = alice { name = \"bob\", age = 50 }\nmain = name bob")))
"bob")
;; ── Record patterns ────────────────────────────────────────
(hk-test
"case-alt record pattern: Pt { x = a }"
(hk-deep-force
(hk-run
(str
hk-pt-source
"getX p = case p of Pt { x = a } -> a\nmain = getX (Pt { x = 7, y = 99 })")))
7)
(hk-test
"case-alt record pattern: multi-field bind"
(hk-deep-force
(hk-run
(str
hk-pt-source
"sumPt p = case p of Pt { x = a, y = b } -> a + b\nmain = sumPt (Pt { x = 3, y = 4 })")))
7)
(hk-test
"fun-LHS record pattern"
(hk-deep-force
(hk-run
(str
hk-person-source
"getName (Person { name = n }) = n\nmain = getName (Person { name = \"alice\", age = 30 })")))
"alice")
;; ── deriving Show on a record ───────────────────────────────
(hk-test
"deriving Show on a record produces positional output"
(hk-deep-force
(hk-run
"data Person = Person { name :: String, age :: Int } deriving (Show)\nmain = show (Person { name = \"alice\", age = 30 })"))
"Person \"alice\" 30")
(hk-test
"deriving Show on Pt"
(hk-deep-force
(hk-run
"data Pt = Pt { x :: Int, y :: Int } deriving (Show)\nmain = show (Pt { x = 3, y = 4 })"))
"Pt 3 4")
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

View File

@@ -1,119 +0,0 @@
;; set.sx — Phase 12 Data.Set unit tests.
;; ── SX-level (direct hk-set-*) ───────────────────────────────
(hk-test
"hk-set-empty: size 0 + null"
(list (hk-set-size hk-set-empty) (hk-set-null hk-set-empty))
(list 0 true))
(hk-test
"hk-set-singleton: member yes"
(let
((s (hk-set-singleton 5)))
(list (hk-set-size s) (hk-set-member 5 s) (hk-set-member 99 s)))
(list 1 true false))
(hk-test
"hk-set-insert: idempotent"
(let
((s (hk-set-insert 1 (hk-set-insert 1 hk-set-empty))))
(hk-set-size s))
1)
(hk-test
"hk-set-from-list: dedupes"
(hk-set-to-asc-list (hk-set-from-list (list 3 1 4 1 5 9 2 6)))
(list 1 2 3 4 5 6 9))
(hk-test
"hk-set-delete: removes"
(let
((s (hk-set-from-list (list 1 2 3))))
(hk-set-to-asc-list (hk-set-delete 2 s)))
(list 1 3))
(hk-test
"hk-set-union"
(hk-set-to-asc-list
(hk-set-union
(hk-set-from-list (list 1 2 3))
(hk-set-from-list (list 3 4 5))))
(list 1 2 3 4 5))
(hk-test
"hk-set-intersection"
(hk-set-to-asc-list
(hk-set-intersection
(hk-set-from-list (list 1 2 3 4))
(hk-set-from-list (list 3 4 5 6))))
(list 3 4))
(hk-test
"hk-set-difference"
(hk-set-to-asc-list
(hk-set-difference
(hk-set-from-list (list 1 2 3 4))
(hk-set-from-list (list 3 4 5))))
(list 1 2))
(hk-test
"hk-set-is-subset-of: yes"
(hk-set-is-subset-of
(hk-set-from-list (list 2 3))
(hk-set-from-list (list 1 2 3 4)))
true)
(hk-test
"hk-set-is-subset-of: no"
(hk-set-is-subset-of
(hk-set-from-list (list 5 6))
(hk-set-from-list (list 1 2 3 4)))
false)
(hk-test
"hk-set-filter"
(hk-set-to-asc-list
(hk-set-filter (fn (k) (> k 2)) (hk-set-from-list (list 1 2 3 4 5))))
(list 3 4 5))
(hk-test
"hk-set-map"
(hk-set-to-asc-list
(hk-set-map (fn (k) (* k 10)) (hk-set-from-list (list 1 2 3))))
(list 10 20 30))
(hk-test
"hk-set-foldr: sum"
(hk-set-foldr + 0 (hk-set-from-list (list 1 2 3 4 5)))
15)
;; ── Haskell-level (Set.* via import wiring) ──────────────────
(hk-test
"Set.size after Set.insert chain"
(hk-deep-force
(hk-run
"import qualified Data.Set as Set\nmain = Set.size (Set.insert 3 (Set.insert 1 (Set.insert 2 Set.empty)))"))
3)
(hk-test
"Set.member true"
(hk-deep-force
(hk-run
"import qualified Data.Set as Set\nmain = Set.member 5 (Set.insert 5 Set.empty)"))
(list "True"))
(hk-test
"Set.union via Haskell"
(hk-deep-force
(hk-run
"import Data.Set\nmain = Set.size (Set.union (Set.insert 1 Set.empty) (Set.insert 2 Set.empty))"))
2)
(hk-test
"Set.isSubsetOf via Haskell"
(hk-deep-force
(hk-run
"import qualified Data.Set as S\nmain = S.isSubsetOf (S.insert 1 S.empty) (S.insert 2 (S.insert 1 S.empty))"))
(list "True"))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

View File

@@ -1,140 +0,0 @@
;; show.sx — tests for the Show / Read class plumbing.
;;
;; Covers Phase 8:
;; - showsPrec / showParen / shows / showString stubs
;; - Read class stubs (reads / readsPrec / read)
;; - direct show coverage (Int, Bool, String, list, tuple, Maybe, ADT, ...)
;; ── ShowS / showsPrec / showParen stubs ──────────────────────
(hk-test
"shows: prepends show output"
(hk-deep-force (hk-run "main = shows 5 \"abc\""))
"5abc")
(hk-test
"shows: works on True"
(hk-deep-force (hk-run "main = shows True \"x\""))
"Truex")
(hk-test
"showString: prepends literal"
(hk-deep-force (hk-run "main = showString \"hello\" \" world\""))
"hello world")
(hk-test
"showParen True: wraps inner output in parens"
(hk-deep-force (hk-run "main = showParen True (showString \"inside\") \"\""))
"(inside)")
(hk-test
"showParen False: passes through unchanged"
(hk-deep-force (hk-run "main = showParen False (showString \"inside\") \"\""))
"inside")
(hk-test
"showsPrec: prepends show output regardless of prec"
(hk-deep-force (hk-run "main = showsPrec 11 42 \"end\""))
"42end")
(hk-test
"showParen + manual composition: build (Just 3)"
(hk-deep-force
(hk-run
"buildJust3 s = showString \"Just \" (shows 3 s)\nmain = showParen True buildJust3 \"\""))
"(Just 3)")
;; ── Read stubs ───────────────────────────────────────────────
(hk-test
"reads: stub returns empty list (null-check)"
(hk-deep-force (hk-run "main = show (null (reads \"42\"))"))
"True")
(hk-test
"readsPrec: stub returns empty list"
(hk-deep-force (hk-run "main = show (null (readsPrec 0 \"True\"))"))
"True")
(hk-test
"reads: type-checks in expression context (length)"
(hk-deep-force (hk-run "main = show (length (reads \"abc\"))"))
"0")
;; ── Direct `show` audit coverage ─────────────────────────────
(hk-test "show Int" (hk-deep-force (hk-run "main = show 42")) "42")
(hk-test
"show negative Int"
(hk-deep-force (hk-run "main = show (negate 5)"))
"-5")
(hk-test "show Bool True" (hk-deep-force (hk-run "main = show True")) "True")
(hk-test
"show Bool False"
(hk-deep-force (hk-run "main = show False"))
"False")
(hk-test
"show String quotes the value"
(hk-deep-force (hk-run "main = show \"hello\""))
"\"hello\"")
(hk-test
"show list of Int"
(hk-deep-force (hk-run "main = show [1,2,3]"))
"[1,2,3]")
(hk-test
"show empty list"
(hk-deep-force (hk-run "main = show (drop 5 [1,2,3])"))
"[]")
(hk-test
"show pair tuple"
(hk-deep-force (hk-run "main = show (1, True)"))
"(1,True)")
(hk-test
"show triple tuple"
(hk-deep-force (hk-run "main = show (1, 2, 3)"))
"(1,2,3)")
(hk-test
"show Maybe Nothing"
(hk-deep-force (hk-run "main = show Nothing"))
"Nothing")
(hk-test
"show Maybe Just"
(hk-deep-force (hk-run "main = show (Just 3)"))
"Just 3")
(hk-test
"show nested Just wraps inner in parens"
(hk-deep-force (hk-run "main = show (Just (Just 3))"))
"Just (Just 3)")
(hk-test
"show Just (negate 3) wraps negative in parens"
(hk-deep-force (hk-run "main = show (Just (negate 3))"))
"Just (-3)")
(hk-test
"show custom nullary ADT"
(hk-deep-force
(hk-run "data Day = Mon | Tue | Wed deriving (Show)\nmain = show Tue"))
"Tue")
(hk-test
"show custom multi-constructor ADT"
(hk-deep-force
(hk-run
"data Shape = Pt | Sq Int | Rect Int Int deriving (Show)\nmain = show (Rect 3 4)"))
"Rect 3 4")
(hk-test
"show list of Maybe wraps each element"
(hk-deep-force (hk-run "main = show [Just 1, Nothing, Just 2]"))
"[Just 1,Nothing,Just 2]")
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

View File

@@ -37,11 +37,11 @@
(hk-ts "show neg" "negate 7" "-7")
(hk-ts "show bool T" "True" "True")
(hk-ts "show bool F" "False" "False")
(hk-ts "show list" "[1,2,3]" "[1,2,3]")
(hk-ts "show Just" "Just 5" "Just 5")
(hk-ts "show list" "[1,2,3]" "[1, 2, 3]")
(hk-ts "show Just" "Just 5" "(Just 5)")
(hk-ts "show Nothing" "Nothing" "Nothing")
(hk-ts "show LT" "LT" "LT")
(hk-ts "show tuple" "(1, True)" "(1,True)")
(hk-ts "show tuple" "(1, True)" "(1, True)")
;; ── Num extras ───────────────────────────────────────────────
(hk-test "signum pos" (hk-deep-force (hk-run "main = signum 5")) 1)
@@ -59,13 +59,13 @@
(hk-test
"foldr cons"
(hk-deep-force (hk-run "main = show (foldr (:) [] [1,2,3])"))
"[1,2,3]")
"[1, 2, 3]")
;; ── List ops ─────────────────────────────────────────────────
(hk-test
"reverse"
(hk-deep-force (hk-run "main = show (reverse [1,2,3])"))
"[3,2,1]")
"[3, 2, 1]")
(hk-test "null []" (hk-deep-force (hk-run "main = null []")) (list "True"))
(hk-test
"null xs"
@@ -82,7 +82,7 @@
(hk-test
"zip"
(hk-deep-force (hk-run "main = show (zip [1,2] [3,4])"))
"[(1,3),(2,4)]")
"[(1, 3), (2, 4)]")
(hk-test "sum" (hk-deep-force (hk-run "main = sum [1,2,3,4,5]")) 15)
(hk-test "product" (hk-deep-force (hk-run "main = product [1,2,3,4]")) 24)
(hk-test "maximum" (hk-deep-force (hk-run "main = maximum [3,1,9,2]")) 9)
@@ -112,7 +112,7 @@
(hk-test
"fmap list"
(hk-deep-force (hk-run "main = show (fmap (+1) [1,2,3])"))
"[2,3,4]")
"[2, 3, 4]")
;; ── Monad / Applicative ──────────────────────────────────────
(hk-test "return" (hk-deep-force (hk-run "main = return 7")) (list "IO" 7))
@@ -134,7 +134,7 @@
(hk-test
"lookup hit"
(hk-deep-force (hk-run "main = show (lookup 2 [(1,10),(2,20)])"))
"Just 20")
"(Just 20)")
(hk-test
"lookup miss"
(hk-deep-force (hk-run "main = show (lookup 9 [(1,10)])"))

View File

@@ -1,139 +0,0 @@
;; String / Char tests — Phase 7 items 1-4.
;;
;; Covers:
;; hk-str? / hk-str-head / hk-str-tail / hk-str-null? (runtime helpers)
;; chr / ord / toUpper / toLower (builtins in eval)
;; cons-pattern on strings via match.sx (":"-intercept)
;; empty-list pattern on strings via match.sx ("[]"-intercept)
;; ── hk-str? predicate ────────────────────────────────────────────────────
(hk-test "hk-str? native string" (hk-str? "hello") true)
(hk-test "hk-str? empty string" (hk-str? "") true)
(hk-test "hk-str? view dict" (hk-str? {:hk-off 1 :hk-str "hi"}) true)
(hk-test "hk-str? rejects number" (hk-str? 42) false)
;; ── hk-str-null? predicate ───────────────────────────────────────────────
(hk-test "hk-str-null? empty string" (hk-str-null? "") true)
(hk-test "hk-str-null? non-empty" (hk-str-null? "a") false)
(hk-test "hk-str-null? exhausted view" (hk-str-null? {:hk-off 2 :hk-str "hi"}) true)
(hk-test "hk-str-null? live view" (hk-str-null? {:hk-off 1 :hk-str "hi"}) false)
;; ── hk-str-head ──────────────────────────────────────────────────────────
(hk-test "hk-str-head native string" (hk-str-head "hello") 104)
(hk-test "hk-str-head view at offset" (hk-str-head {:hk-off 1 :hk-str "hello"}) 101)
;; ── hk-str-tail ──────────────────────────────────────────────────────────
(hk-test "hk-str-tail of single char is nil" (hk-str-tail "h") (list "[]"))
(hk-test
"hk-str-tail of two-char string is live view"
(hk-str-null? (hk-str-tail "hi"))
false)
(hk-test
"hk-str-tail head of tail of hi is i"
(hk-str-head (hk-str-tail "hi"))
105)
;; ── chr / ord ────────────────────────────────────────────────────────────
(hk-test "chr 65 = A" (hk-eval-expr-source "chr 65") "A")
(hk-test "chr 104 = h" (hk-eval-expr-source "chr 104") "h")
(hk-test "ord char literal 'A' = 65" (hk-eval-expr-source "ord 'A'") 65)
(hk-test "ord char literal 'a' = 97" (hk-eval-expr-source "ord 'a'") 97)
(hk-test
"ord of head string = char code"
(hk-eval-expr-source "ord (head \"hello\")")
104)
;; ── toUpper / toLower ────────────────────────────────────────────────────
(hk-test "toUpper 97 = 65 (a->A)" (hk-eval-expr-source "toUpper 97") 65)
(hk-test
"toUpper 65 = 65 (already upper)"
(hk-eval-expr-source "toUpper 65")
65)
(hk-test
"toUpper 48 = 48 (digit unchanged)"
(hk-eval-expr-source "toUpper 48")
48)
(hk-test "toLower 65 = 97 (A->a)" (hk-eval-expr-source "toLower 65") 97)
(hk-test
"toLower 97 = 97 (already lower)"
(hk-eval-expr-source "toLower 97")
97)
(hk-test
"toLower 48 = 48 (digit unchanged)"
(hk-eval-expr-source "toLower 48")
48)
;; ── Pattern matching on strings ──────────────────────────────────────────
(hk-test
"cons pattern: head of hello = 104"
(hk-eval-expr-source "case \"hello\" of { (x:_) -> x }")
104)
(hk-test
"cons pattern: tail is traversable"
(hk-eval-expr-source "case \"hi\" of { (_:xs) -> case xs of { (y:_) -> y } }")
105)
(hk-test
"empty list pattern matches empty string"
(hk-eval-expr-source "case \"\" of { [] -> True; _ -> False }")
(list "True"))
(hk-test
"empty list pattern fails on non-empty"
(hk-eval-expr-source "case \"a\" of { [] -> True; _ -> False }")
(list "False"))
(hk-test
"cons pattern fails on empty string"
(hk-eval-expr-source "case \"\" of { (_:_) -> True; _ -> False }")
(list "False"))
;; ── Haskell programs using string traversal ──────────────────────────────
(hk-test
"null prelude on empty string"
(hk-eval-expr-source "null \"\"")
(list "True"))
(hk-test
"null prelude on non-empty string"
(hk-eval-expr-source "null \"abc\"")
(list "False"))
(hk-test
"length of string via cons recursion"
(hk-eval-expr-source "let { f [] = 0; f (_:xs) = 1 + f xs } in f \"hello\"")
5)
(hk-test
"map ord over string gives char codes"
(hk-deep-force (hk-eval-expr-source "map ord \"abc\""))
(list ":" 97 (list ":" 98 (list ":" 99 (list "[]")))))
(hk-test
"map toUpper over char codes then chr"
(hk-eval-expr-source "chr (toUpper (ord (head \"abc\")))")
"A")
(hk-test
"head then ord using prelude head"
(hk-eval-expr-source "ord (head \"hello\")")
104)

View File

@@ -226,28 +226,6 @@
value)
(list (quote set!) (hs-to-sx target) value)))))))
(true (list (quote set!) (hs-to-sx target) value)))))))
;; Throttle/debounce extraction state — module-level so they don't get
;; redefined on every emit-on call (which was causing JIT churn). Set
;; via _strip-throttle-debounce at the start of each emit-on, used in
;; the handler-build step inside scan-on.
(define _throttle-ms nil)
(define _debounce-ms nil)
(define
_strip-throttle-debounce
(fn
(lst)
(cond
((<= (len lst) 1) lst)
((= (first lst) :throttle)
(do
(set! _throttle-ms (nth lst 1))
(_strip-throttle-debounce (rest (rest lst)))))
((= (first lst) :debounce)
(do
(set! _debounce-ms (nth lst 1))
(_strip-throttle-debounce (rest (rest lst)))))
(true
(cons (first lst) (_strip-throttle-debounce (rest lst)))))))
(define
emit-on
(fn
@@ -256,8 +234,6 @@
((parts (rest ast)))
(let
((event-name (first parts)))
(set! _throttle-ms nil)
(set! _debounce-ms nil)
(define
scan-on
(fn
@@ -290,13 +266,6 @@
((wrapped-body (if catch-info (let ((var (make-symbol (nth catch-info 0))) (catch-body (hs-to-sx (nth catch-info 1)))) (if finally-info (list (quote let) (list (list (quote __hs-exc) nil) (list (quote __hs-reraise) false)) (list (quote do) (list (quote guard) (list var (list true (list (quote let) (list (list var (list (quote host-hs-normalize-exc) var))) (list (quote guard) (list (quote __inner-exc) (list true (list (quote do) (list (quote set!) (quote __hs-exc) (quote __inner-exc)) (list (quote set!) (quote __hs-reraise) true)))) catch-body)))) compiled-body) (hs-to-sx finally-info) (list (quote when) (quote __hs-reraise) (list (quote raise) (quote __hs-exc))))) (list (quote let) (list (list (quote __hs-exc) nil) (list (quote __hs-reraise) false)) (list (quote do) (list (quote guard) (list var (list true (list (quote let) (list (list var (list (quote host-hs-normalize-exc) var))) (list (quote guard) (list (quote __inner-exc) (list true (list (quote do) (list (quote set!) (quote __hs-exc) (quote __inner-exc)) (list (quote set!) (quote __hs-reraise) true)))) catch-body)))) compiled-body) (list (quote when) (quote __hs-reraise) (list (quote raise) (quote __hs-exc))))))) (if finally-info (list (quote do) compiled-body (hs-to-sx finally-info)) compiled-body))))
(let
((handler (let ((uses-the-result? (fn (expr) (cond ((= expr (quote the-result)) true) ((list? expr) (some (fn (x) (uses-the-result? x)) expr)) (true false))))) (let ((base-handler (list (quote fn) (list (quote event)) (if (uses-the-result? wrapped-body) (list (quote let) (list (list (quote the-result) nil)) wrapped-body) wrapped-body)))) (if count-filter-info (let ((mn (get count-filter-info "min")) (mx (get count-filter-info "max"))) (list (quote let) (list (list (quote __hs-count) 0)) (list (quote fn) (list (quote event)) (list (quote begin) (list (quote set!) (quote __hs-count) (list (quote +) (quote __hs-count) 1)) (list (quote when) (if (= mx -1) (list (quote >=) (quote __hs-count) mn) (list (quote and) (list (quote >=) (quote __hs-count) mn) (list (quote <=) (quote __hs-count) mx))) (nth base-handler 2)))))) base-handler)))))
(let
((handler (cond
(_throttle-ms
(list (quote hs-throttle!) handler (hs-to-sx _throttle-ms)))
(_debounce-ms
(list (quote hs-debounce!) handler (hs-to-sx _debounce-ms)))
(true handler))))
(let
((on-call (if every? (list (quote hs-on-every) target event-name handler) (list (quote hs-on) target event-name handler))))
(cond
@@ -356,7 +325,7 @@
(first pair)
handler))
or-sources)))
on-call))))))))))))))
on-call)))))))))))))
((= (first items) :from)
(scan-on
(rest (rest items))
@@ -500,7 +469,7 @@
count-filter-info
elsewhere?
or-sources)))))
(scan-on (_strip-throttle-debounce (rest parts)) nil nil false nil nil nil nil nil false nil)))))
(scan-on (rest parts) nil nil false nil nil nil nil nil false nil)))))
(define
emit-send
(fn
@@ -2521,15 +2490,6 @@
(quote fn)
(list (quote it))
(hs-to-sx body))))
((and (list? expr) (= (first expr) (quote attr)))
(list
(quote hs-attr-watch!)
(hs-to-sx (nth expr 2))
(nth expr 1)
(list
(quote fn)
(list (quote it))
(hs-to-sx body))))
(true nil))))
((= head (quote init))
(list

View File

@@ -1358,17 +1358,7 @@
cls
(first extra-classes)
tgt))
((and
(= (tp-type) "keyword") (= (tp-val) "for")
;; Only consume 'for' as a duration clause if the next
;; token is NOT '<ident> in ...' — that pattern is a
;; for-in loop, not a toggle duration.
(not
(and
(> (len tokens) (+ p 2))
(= (get (nth tokens (+ p 1)) "type") "ident")
(= (get (nth tokens (+ p 2)) "value") "in")))
(do (adv!) true))
((match-kw "for")
(let
((dur (parse-expr)))
(list (quote toggle-class-for) cls tgt dur)))
@@ -3100,17 +3090,7 @@
(= (tp-val) "queue"))
(do (adv!) (adv!)))
(let
((every? (match-kw "every"))
(throttle-ms nil)
(debounce-ms nil))
;; 'throttled at <duration>' / 'debounced at <duration>'
;; — parsed as handler modifiers, captured as :throttle / :debounce parts.
(when (and (= (tp-type) "ident") (= (tp-val) "throttled"))
(adv!)
(when (match-kw "at") (set! throttle-ms (parse-expr))))
(when (and (= (tp-type) "ident") (= (tp-val) "debounced"))
(adv!)
(when (match-kw "at") (set! debounce-ms (parse-expr))))
((every? (match-kw "every")))
(let
((having (if (or h-margin h-threshold) (dict "margin" h-margin "threshold" h-threshold) nil)))
(let
@@ -3125,10 +3105,6 @@
(match-kw "end")
(let
((parts (list (quote on) event-name)))
(let
((parts (if throttle-ms (append parts (list :throttle throttle-ms)) parts)))
(let
((parts (if debounce-ms (append parts (list :debounce debounce-ms)) parts)))
(let
((parts (if every? (append parts (list :every true)) parts)))
(let
@@ -3151,7 +3127,7 @@
((parts (if finally-clause (append parts (list :finally finally-clause)) parts)))
(let
((parts (append parts (list (if (> (len event-vars) 0) (cons (quote do) (append (map (fn (nm) (list (quote ref) nm)) event-vars) (if (and (list? body) (= (first body) (quote do))) (rest body) (list body)))) body)))))
parts))))))))))))))))))))))))))))
parts))))))))))))))))))))))))))
(define
parse-init-feat
(fn
@@ -3201,7 +3177,6 @@
(or
(= (tp-type) "hat")
(= (tp-type) "local")
(= (tp-type) "attr")
(and (= (tp-type) "keyword") (= (tp-val) "dom")))
(let
((expr (parse-expr)))

View File

@@ -12,29 +12,6 @@
;; Register an event listener. Returns unlisten function.
;; (hs-on target event-name handler) → unlisten-fn
(begin
(define _hs-config-log-all false)
(define _hs-log-captured (list))
(define
hs-set-log-all!
(fn (flag) (set! _hs-config-log-all (if flag true false))))
(define hs-get-log-captured (fn () _hs-log-captured))
(define
hs-clear-log-captured!
(fn () (begin (set! _hs-log-captured (list)) nil)))
(define
hs-log-event!
(fn
(msg)
(when
_hs-config-log-all
(begin
(set! _hs-log-captured (append _hs-log-captured (list msg)))
(host-call (host-global "console") "log" msg)
nil)))))
;; Run an initializer function immediately.
;; (hs-init thunk) — called at element boot time
(define
hs-each
(fn
@@ -45,52 +22,17 @@
;; (hs-init thunk) — called at element boot time
(define meta (host-new "Object"))
;; Run an initializer function immediately.
;; (hs-init thunk) — called at element boot time
(define
hs-on-every
(fn (target event-name handler) (dom-listen target event-name handler)))
;; ── Async / timing ──────────────────────────────────────────────
;; Wait for a duration in milliseconds.
;; In hyperscript, wait is async-transparent — execution pauses.
;; Here we use perform/IO suspension for true pause semantics.
(define
hs-on-every
(fn (target event-name handler) (dom-listen target event-name handler)))
;; Throttle: drops events that arrive within the window. First event fires
;; immediately; subsequent events within `ms` of the previous fire are dropped.
;; Returns a wrapped handler suitable for hs-on / hs-on-every.
(define
hs-throttle!
(fn
(handler ms)
(let
((__hs-last-fire 0))
(fn
(event)
(let
((__hs-now (host-call (host-global "Date") "now")))
(when
(>= (- __hs-now __hs-last-fire) ms)
(set! __hs-last-fire __hs-now)
(handler event)))))))
;; Debounce: waits until `ms` has elapsed since the last event before firing.
;; In our synchronous test mock no time passes, so the timer fires immediately
;; via setTimeout(_, 0); the wrapped handler still gets called once per burst.
(define
hs-debounce!
(fn
(handler ms)
(let
((__hs-timer nil))
(fn
(event)
(when __hs-timer (host-call (host-global "window") "clearTimeout" __hs-timer))
(set! __hs-timer
(host-call (host-global "window") "setTimeout"
(host-new-function (list "ev") "return arguments[0](arguments[1]);")
ms handler event))))))
;; Wait for a DOM event on a target.
;; (hs-wait-for target event-name) — suspends until event fires
(define
_hs-on-caller
(let
@@ -103,7 +45,8 @@
(host-set! _ctx "meta" _m)
_ctx)))
;; Wait for CSS transitions/animations to settle on an element.
;; Wait for a DOM event on a target.
;; (hs-wait-for target event-name) — suspends until event fires
(define
hs-on
(fn
@@ -123,14 +66,14 @@
(append prev (list unlisten)))
unlisten))))))
;; ── Class manipulation ──────────────────────────────────────────
;; Toggle a single class on an element.
;; Wait for CSS transitions/animations to settle on an element.
(define
hs-on-every
(fn (target event-name handler) (dom-listen target event-name handler)))
;; Toggle between two classes — exactly one is active at a time.
;; ── Class manipulation ──────────────────────────────────────────
;; Toggle a single class on an element.
(define
hs-on-intersection-attach!
(fn
@@ -146,8 +89,7 @@
(host-call observer "observe" target)
observer)))))
;; Take a class from siblings — add to target, remove from others.
;; (hs-take! target cls) — like radio button class behavior
;; Toggle between two classes — exactly one is active at a time.
(define
hs-on-mutation-attach!
(fn
@@ -168,18 +110,19 @@
(host-call observer "observe" target opts)
observer))))))
;; Take a class from siblings — add to target, remove from others.
;; (hs-take! target cls) — like radio button class behavior
(define hs-init (fn (thunk) (thunk)))
;; ── DOM insertion ───────────────────────────────────────────────
;; Put content at a position relative to a target.
;; pos: "into" | "before" | "after"
(define hs-init (fn (thunk) (thunk)))
(define hs-wait (fn (ms) (perform (list (quote io-sleep) ms))))
;; ── Navigation / traversal ──────────────────────────────────────
;; Navigate to a URL.
(define hs-wait (fn (ms) (perform (list (quote io-sleep) ms))))
;; Find next sibling matching a selector (or any sibling).
(begin
(define
hs-wait-for
@@ -192,7 +135,7 @@
(target event-name timeout-ms)
(perform (list (quote io-wait-event) target event-name timeout-ms)))))
;; Find previous sibling matching a selector.
;; Find next sibling matching a selector (or any sibling).
(define
hs-settle
(fn
@@ -200,7 +143,7 @@
(hs-null-raise! target)
(when (not (nil? target)) (perform (list (quote io-settle) target)))))
;; First element matching selector within a scope.
;; Find previous sibling matching a selector.
(define
hs-toggle-class!
(fn
@@ -210,7 +153,7 @@
(not (nil? target))
(host-call (host-get target "classList") "toggle" cls))))
;; Last element matching selector.
;; First element matching selector within a scope.
(define
hs-toggle-var-cycle!
(fn
@@ -232,7 +175,7 @@
var-name
(if (= idx -1) (first values) (nth values (mod (+ idx 1) n))))))))
;; First/last within a specific scope.
;; Last element matching selector.
(define
hs-toggle-between!
(fn
@@ -245,6 +188,7 @@
(do (dom-remove-class target cls1) (dom-add-class target cls2))
(do (dom-remove-class target cls2) (dom-add-class target cls1))))))
;; First/last within a specific scope.
(define
hs-toggle-style!
(fn
@@ -268,9 +212,6 @@
(dom-set-style target prop "hidden")
(dom-set-style target prop "")))))))
;; ── Iteration ───────────────────────────────────────────────────
;; Repeat a thunk N times.
(define
hs-toggle-style-between!
(fn
@@ -282,7 +223,9 @@
(dom-set-style target prop val2)
(dom-set-style target prop val1)))))
;; Repeat forever (until break — relies on exception/continuation).
;; ── Iteration ───────────────────────────────────────────────────
;; Repeat a thunk N times.
(define
hs-toggle-style-cycle!
(fn
@@ -303,10 +246,7 @@
(true (find-next (rest remaining))))))
(dom-set-style target prop (find-next vals)))))
;; ── Fetch ───────────────────────────────────────────────────────
;; Fetch a URL, parse response according to format.
;; (hs-fetch url format) — format is "json" | "text" | "html"
;; Repeat forever (until break — relies on exception/continuation).
(define
hs-take!
(fn
@@ -329,7 +269,8 @@
(when with-cls (dom-remove-class target with-cls))))
(let
((attr-val (if (> (len extra) 0) (first extra) nil))
(with-val (if (> (len extra) 1) (nth extra 1) nil)))
(with-val
(if (> (len extra) 1) (nth extra 1) nil)))
(do
(for-each
(fn
@@ -346,10 +287,10 @@
(dom-set-attr target name attr-val)
(dom-set-attr target name ""))))))))
;; ── Type coercion ───────────────────────────────────────────────
;; ── Fetch ───────────────────────────────────────────────────────
;; Coerce a value to a type by name.
;; (hs-coerce value type-name) — type-name is "Int", "Float", "String", etc.
;; Fetch a URL, parse response according to format.
;; (hs-fetch url format) — format is "json" | "text" | "html"
(begin
(define
hs-element?
@@ -506,10 +447,10 @@
(dom-insert-adjacent-html target "beforeend" value)
(hs-boot-subtree! target)))))))))))
;; ── Object creation ─────────────────────────────────────────────
;; ── Type coercion ───────────────────────────────────────────────
;; Make a new object of a given type.
;; (hs-make type-name) — creates empty object/collection
;; Coerce a value to a type by name.
;; (hs-coerce value type-name) — type-name is "Int", "Float", "String", etc.
(define
hs-add-to!
(fn
@@ -523,11 +464,10 @@
((hs-is-set? target) (do (host-call target "add" value) target))
(true (do (host-call target "push" value) target)))))
;; ── Behavior installation ───────────────────────────────────────
;; ── Object creation ─────────────────────────────────────────────
;; Install a behavior on an element.
;; A behavior is a function that takes (me ...params) and sets up features.
;; (hs-install behavior-fn me ...args)
;; Make a new object of a given type.
;; (hs-make type-name) — creates empty object/collection
(define
hs-remove-from!
(fn
@@ -537,10 +477,11 @@
((hs-is-set? target) (do (host-call target "delete" value) target))
(true (host-call target "splice" (host-call target "indexOf" value) 1)))))
;; ── Measurement ─────────────────────────────────────────────────
;; ── Behavior installation ───────────────────────────────────────
;; Measure an element's bounding rect, store as local variables.
;; Returns a dict with x, y, width, height, top, left, right, bottom.
;; Install a behavior on an element.
;; A behavior is a function that takes (me ...params) and sets up features.
;; (hs-install behavior-fn me ...args)
(define
hs-splice-at!
(fn
@@ -553,7 +494,10 @@
((i (if (< idx 0) (+ n idx) idx)))
(cond
((or (< i 0) (>= i n)) target)
(true (concat (slice target 0 i) (slice target (+ i 1) n))))))
(true
(concat
(slice target 0 i)
(slice target (+ i 1) n))))))
(do
(when
target
@@ -564,10 +508,10 @@
(host-call target "splice" i 1))))
target))))
;; Return the current text selection as a string. In the browser this is
;; `window.getSelection().toString()`. In the mock test runner, a test
;; setup stashes the desired selection text at `window.__test_selection`
;; and the fallback path returns that so tests can assert on the result.
;; ── Measurement ─────────────────────────────────────────────────
;; Measure an element's bounding rect, store as local variables.
;; Returns a dict with x, y, width, height, top, left, right, bottom.
(define
hs-index
(fn
@@ -579,11 +523,10 @@
((string? obj) (nth obj key))
(true (host-get obj key)))))
;; ── Transition ──────────────────────────────────────────────────
;; Transition a CSS property to a value, optionally with duration.
;; (hs-transition target prop value duration)
;; Return the current text selection as a string. In the browser this is
;; `window.getSelection().toString()`. In the mock test runner, a test
;; setup stashes the desired selection text at `window.__test_selection`
;; and the fallback path returns that so tests can assert on the result.
(define
hs-put-at!
(fn
@@ -605,6 +548,11 @@
((= pos "start") (host-call target "unshift" value)))
target)))))))
;; ── Transition ──────────────────────────────────────────────────
;; Transition a CSS property to a value, optionally with duration.
;; (hs-transition target prop value duration)
(define
hs-dict-without
(fn
@@ -641,11 +589,6 @@
((w (host-global "window")))
(if w (host-call w "prompt" msg) nil))))
;; ── Transition ──────────────────────────────────────────────────
;; Transition a CSS property to a value, optionally with duration.
;; (hs-transition target prop value duration)
(define
hs-answer
(fn
@@ -654,6 +597,11 @@
((w (host-global "window")))
(if w (if (host-call w "confirm" msg) yes-val no-val) no-val))))
;; ── Transition ──────────────────────────────────────────────────
;; Transition a CSS property to a value, optionally with duration.
;; (hs-transition target prop value duration)
(define
hs-answer-alert
(fn
@@ -714,10 +662,6 @@
(if (nil? sel) "" (host-call sel "toString" (list))))
stash)))))
(define
hs-reset!
(fn
@@ -764,6 +708,10 @@
(when default-val (dom-set-prop target "value" default-val)))))
(true nil)))))))
(define
hs-next
(fn
@@ -782,8 +730,7 @@
((dom-matches? el sel) el)
(true (find-next (dom-next-sibling el))))))
(find-next sibling)))))
;; ── Sandbox/test runtime additions ──────────────────────────────
;; Property access — dot notation and .length
(define
hs-previous
(fn
@@ -802,9 +749,10 @@
((dom-matches? el sel) el)
(true (find-prev (dom-get-prop el "previousElementSibling"))))))
(find-prev sibling)))))
;; DOM query stub — sandbox returns empty list
;; ── Sandbox/test runtime additions ──────────────────────────────
;; Property access — dot notation and .length
(define _hs-last-query-sel nil)
;; Method dispatch — obj.method(args)
;; DOM query stub — sandbox returns empty list
(define
hs-null-raise!
(fn
@@ -815,9 +763,7 @@
((msg (str "'" (or (host-get (host-global "window") "_hs_last_query_sel") "target") "' is null")))
(host-set! (host-global "window") "_hs_null_error" msg)
(guard (_null-e (true nil)) (raise msg))))))
;; ── 0.9.90 features ─────────────────────────────────────────────
;; beep! — debug logging, returns value unchanged
;; Method dispatch — obj.method(args)
(define
hs-empty-raise!
(fn
@@ -831,7 +777,9 @@
((msg (str "'" (or (host-get (host-global "window") "_hs_last_query_sel") "target") "' is null")))
(host-set! (host-global "window") "_hs_null_error" msg)
(guard (_null-e (true nil)) (raise msg))))))
;; Property-based is — check obj.key truthiness
;; ── 0.9.90 features ─────────────────────────────────────────────
;; beep! — debug logging, returns value unchanged
(define
hs-query-all-checked
(fn
@@ -839,14 +787,14 @@
(let
((result (hs-query-all sel)))
(do (hs-empty-raise! result) result))))
;; Array slicing (inclusive both ends)
;; Property-based is — check obj.key truthiness
(define
hs-dispatch!
(fn
(target event detail)
(hs-null-raise! target)
(when (not (nil? target)) (dom-dispatch target event detail))))
;; Collection: sorted by
;; Array slicing (inclusive both ends)
(define
hs-query-all
(fn
@@ -854,7 +802,7 @@
(do
(host-set! (host-global "window") "_hs_last_query_sel" sel)
(dom-query-all (dom-document) sel))))
;; Collection: sorted by descending
;; Collection: sorted by
(define
hs-query-all-in
(fn
@@ -863,17 +811,17 @@
(nil? target)
(hs-query-all sel)
(host-call target "querySelectorAll" sel))))
;; Collection: split by
;; Collection: sorted by descending
(define
hs-list-set
(fn
(lst idx val)
(append (take lst idx) (cons val (drop lst (+ idx 1))))))
;; Collection: joined by
;; Collection: split by
(define
hs-to-number
(fn (v) (if (number? v) v (or (parse-number (str v)) 0))))
;; Collection: joined by
(define
hs-query-first
(fn
@@ -1003,7 +951,7 @@
((= (str ex) "hs-continue") (do-loop (rest remaining)))
(true (raise ex))))))))
(do-loop items))))
;; Collection: joined by
(begin
(define
hs-append
@@ -1044,7 +992,7 @@
(host-get value "outerHTML")
(str value))))
(true nil)))))
;; Collection: joined by
(define
hs-sender
(fn
@@ -1136,7 +1084,6 @@
(hs-host-to-sx (perform (list "io-parse-json" raw))))
((= fmt "number")
(hs-to-number (perform (list "io-parse-text" raw))))
((= fmt "html") (perform (list "io-parse-html" raw)))
(true (perform (list "io-parse-text" raw)))))))))
(define hs-fetch (fn (url format) (hs-fetch-impl url format false)))
@@ -1676,10 +1623,14 @@
((ch (substring sel i (+ i 1))))
(cond
((= ch ".")
(do (flush!) (set! mode "class") (walk (+ i 1))))
(do
(flush!)
(set! mode "class")
(walk (+ i 1))))
((= ch "#")
(do (flush!) (set! mode "id") (walk (+ i 1))))
(true (do (set! cur (str cur ch)) (walk (+ i 1)))))))))
(true
(do (set! cur (str cur ch)) (walk (+ i 1)))))))))
(walk 0)
(flush!)
{:tag tag :classes classes :id id}))))
@@ -1773,11 +1724,11 @@
(value type-name)
(if (nil? value) false (hs-type-check value type-name))))
(define
hs-strict-eq
(fn (a b) (and (= (type-of a) (type-of b)) (= a b))))
(define
hs-id=
(fn
@@ -1809,20 +1760,6 @@
((nil? suffix) false)
(true (ends-with? (str s) (str suffix))))))
(define
hs-attr-watch!
(fn
(target attr-name handler)
(let
((mo-class (host-get (host-global "window") "MutationObserver")))
(when
mo-class
(let
((cb (fn (records observer) (for-each (fn (rec) (when (= (host-get rec "attributeName") attr-name) (handler (host-call target "getAttribute" attr-name)))) records))))
(let
((mo (host-new "MutationObserver" cb)))
(host-call mo "observe" target {:attributeFilter (list attr-name) :attributes true})))))))
(define
hs-scoped-set!
(fn
@@ -1868,7 +1805,10 @@
((and (dict? a) (dict? b))
(let
((pos (host-call a "compareDocumentPosition" b)))
(if (number? pos) (not (= 0 (mod (/ pos 4) 2))) false)))
(if
(number? pos)
(not (= 0 (mod (/ pos 4) 2)))
false)))
(true (< (str a) (str b))))))
(define
@@ -1989,7 +1929,10 @@
((and (dict? a) (dict? b))
(let
((pos (host-call a "compareDocumentPosition" b)))
(if (number? pos) (not (= 0 (mod (/ pos 4) 2))) false)))
(if
(number? pos)
(not (= 0 (mod (/ pos 4) 2)))
false)))
(true (< (str a) (str b))))))
(define
@@ -2042,7 +1985,9 @@
(define
hs-morph-char
(fn (s p) (if (or (< p 0) (>= p (string-length s))) nil (nth s p))))
(fn
(s p)
(if (or (< p 0) (>= p (string-length s))) nil (nth s p))))
(define
hs-morph-index-from
@@ -2070,7 +2015,10 @@
(q)
(let
((c (hs-morph-char s q)))
(if (and c (< (index-of stop c) 0)) (loop (+ q 1)) q))))
(if
(and c (< (index-of stop c) 0))
(loop (+ q 1))
q))))
(let ((e (loop p))) (list (substring s p e) e))))
(define
@@ -2112,7 +2060,9 @@
(append
acc
(list
(list name (substring s (+ p4 1) close)))))))
(list
name
(substring s (+ p4 1) close)))))))
((= c2 "'")
(let
((close (hs-morph-index-from s "'" (+ p4 1))))
@@ -2122,7 +2072,9 @@
(append
acc
(list
(list name (substring s (+ p4 1) close)))))))
(list
name
(substring s (+ p4 1) close)))))))
(true
(let
((r2 (hs-morph-read-until s p4 " \t\n/>")))
@@ -2206,7 +2158,9 @@
(for-each
(fn
(c)
(when (> (string-length c) 0) (dom-add-class el c)))
(when
(> (string-length c) 0)
(dom-add-class el c)))
(split v " ")))
((and keep-id (= n "id")) nil)
(true (dom-set-attr el n v)))))
@@ -2307,7 +2261,8 @@
((parts (split resolved ":")))
(let
((prop (first parts))
(val (if (> (len parts) 1) (nth parts 1) nil)))
(val
(if (> (len parts) 1) (nth parts 1) nil)))
(cond
((and (not (= prop "display")) (not (= prop "opacity")) (not (= prop "visibility")) (not (= prop "hidden")) (not (= prop "class-hidden")) (not (= prop "class-invisible")) (not (= prop "class-opacity")) (not (= prop "details")) (not (= prop "dialog")) (dict-has? _hs-hide-strategies prop))
(let
@@ -2347,7 +2302,8 @@
((parts (split resolved ":")))
(let
((prop (first parts))
(val (if (> (len parts) 1) (nth parts 1) nil)))
(val
(if (> (len parts) 1) (nth parts 1) nil)))
(cond
((and (not (= prop "display")) (not (= prop "opacity")) (not (= prop "visibility")) (not (= prop "hidden")) (not (= prop "class-hidden")) (not (= prop "class-invisible")) (not (= prop "class-opacity")) (not (= prop "details")) (not (= prop "dialog")) (dict-has? _hs-hide-strategies prop))
(let
@@ -2452,10 +2408,14 @@
(if
(= depth 1)
j
(find-close (+ j 1) (- depth 1)))
(find-close
(+ j 1)
(- depth 1)))
(if
(= (nth raw j) "{")
(find-close (+ j 1) (+ depth 1))
(find-close
(+ j 1)
(+ depth 1))
(find-close (+ j 1) depth))))))
(let
((close (find-close start 1)))
@@ -2566,7 +2526,10 @@
(if
(= (len lst) 0)
-1
(if (= (first lst) item) i (idx-loop (rest lst) (+ i 1))))))
(if
(= (first lst) item)
i
(idx-loop (rest lst) (+ i 1))))))
(idx-loop obj 0)))
(true
(let
@@ -2658,7 +2621,8 @@
(cond
((= end "hs-pick-end") n)
((= end "hs-pick-start") 0)
((and (number? end) (< end 0)) (max 0 (+ n end)))
((and (number? end) (< end 0))
(max 0 (+ n end)))
(true end))))
(cond
((string? col) (slice col s e))
@@ -2838,8 +2802,6 @@
hs-sorted-by-desc
(fn (col key-fn) (reverse (hs-sorted-by col key-fn))))
;; ── SourceInfo API ────────────────────────────────────────────────
(define
hs-dom-has-var?
(fn
@@ -2859,6 +2821,8 @@
((store (host-get el "__hs_vars")))
(if (nil? store) nil (host-get store name)))))
;; ── SourceInfo API ────────────────────────────────────────────────
(define
hs-dom-set-var-raw!
(fn
@@ -2949,12 +2913,7 @@
(define
hs-null-error!
(fn
(selector)
(let
((msg (str "'" selector "' is null")))
(host-set! (host-global "window") "_hs_null_error" msg)
(guard (_null-e (true nil)) (raise msg)))))
(fn (selector) (raise (str "'" selector "' is null"))))
(define
hs-named-target
@@ -2974,7 +2933,9 @@
((results (hs-query-all selector)))
(if
(and
(or (nil? results) (and (list? results) (= (len results) 0)))
(or
(nil? results)
(and (list? results) (= (len results) 0)))
(string? selector)
(> (len selector) 0)
(= (substring selector 0 1) "#"))

View File

@@ -855,230 +855,4 @@
:else (do (t-advance! 1) (scan-template!)))))))
(scan-template!)
(t-emit! "eof" nil)
tokens)))
;; ── Stream wrapper for upstream-style stateful tokenizer API ───────────────
;;
;; Upstream _hyperscript exposes a Tokens object with cursor + follow-set
;; semantics on _hyperscript.internals.tokenizer. Our hs-tokenize returns a
;; flat list; the stream wrapper adds the stateful operations.
;;
;; Type names map ours → upstream's (e.g. "ident" → "IDENTIFIER").
(define
hs-stream-type-map
(fn
(t)
(cond
((= t "ident") "IDENTIFIER")
((= t "number") "NUMBER")
((= t "string") "STRING")
((= t "class") "CLASS_REF")
((= t "id") "ID_REF")
((= t "attr") "ATTRIBUTE_REF")
((= t "style") "STYLE_REF")
((= t "whitespace") "WHITESPACE")
((= t "op") "OPERATOR")
((= t "eof") "EOF")
(true (upcase t)))))
;; Create a stream from a source string.
;; Returns a dict — mutable via dict-set!.
(define
hs-stream
(fn
(src)
{:tokens (hs-tokenize src) :pos 0 :follows (list) :last-match nil :last-ws nil}))
;; Skip whitespace tokens, advancing pos to the next non-WS token.
;; Captures the last skipped whitespace value into :last-ws.
(define
hs-stream-skip-ws!
(fn
(s)
(let
((tokens (get s :tokens)))
(define
loop
(fn
()
(let
((p (get s :pos)))
(when
(and (< p (len tokens))
(= (get (nth tokens p) :type) "whitespace"))
(do
(dict-set! s :last-ws (get (nth tokens p) :value))
(dict-set! s :pos (+ p 1))
(loop))))))
(loop))))
;; Current token (after skipping whitespace).
(define
hs-stream-current
(fn
(s)
(do
(hs-stream-skip-ws! s)
(let
((tokens (get s :tokens)) (p (get s :pos)))
(if (< p (len tokens)) (nth tokens p) nil)))))
;; Returns the current token if its value matches; advances and updates
;; :last-match. Returns nil otherwise (no advance).
;; Honors the follow set: tokens whose value is in :follows do NOT match.
(define
hs-stream-match
(fn
(s value)
(let
((cur (hs-stream-current s)))
(cond
((nil? cur) nil)
((some (fn (f) (= f value)) (get s :follows)) nil)
((= (get cur :value) value)
(do
(dict-set! s :pos (+ (get s :pos) 1))
(dict-set! s :last-match cur)
cur))
(true nil)))))
;; Match by upstream-style type name. Accepts any number of allowed types.
(define
hs-stream-match-type
(fn
(s &rest types)
(let
((cur (hs-stream-current s)))
(cond
((nil? cur) nil)
((some (fn (t) (= (hs-stream-type-map (get cur :type)) t)) types)
(do
(dict-set! s :pos (+ (get s :pos) 1))
(dict-set! s :last-match cur)
cur))
(true nil)))))
;; Match if value is one of the given names.
(define
hs-stream-match-any
(fn
(s &rest names)
(let
((cur (hs-stream-current s)))
(cond
((nil? cur) nil)
((some (fn (n) (= (get cur :value) n)) names)
(do
(dict-set! s :pos (+ (get s :pos) 1))
(dict-set! s :last-match cur)
cur))
(true nil)))))
;; Match an op token whose value is in the list.
(define
hs-stream-match-any-op
(fn
(s &rest ops)
(let
((cur (hs-stream-current s)))
(cond
((nil? cur) nil)
((and (= (get cur :type) "op")
(some (fn (o) (= (get cur :value) o)) ops))
(do
(dict-set! s :pos (+ (get s :pos) 1))
(dict-set! s :last-match cur)
cur))
(true nil)))))
;; Peek N non-WS tokens ahead. Returns the token if its value matches; nil otherwise.
(define
hs-stream-peek
(fn
(s value offset)
(let
((tokens (get s :tokens)))
(define
skip-n-non-ws
(fn
(p remaining)
(cond
((>= p (len tokens)) -1)
((= (get (nth tokens p) :type) "whitespace")
(skip-n-non-ws (+ p 1) remaining))
((= remaining 0) p)
(true (skip-n-non-ws (+ p 1) (- remaining 1))))))
(let
((p (skip-n-non-ws (get s :pos) offset)))
(if (and (>= p 0) (< p (len tokens))
(= (get (nth tokens p) :value) value))
(nth tokens p)
nil)))))
;; Consume tokens until one whose value matches the marker. Returns
;; the consumed list (excluding the marker). Marker becomes current.
(define
hs-stream-consume-until
(fn
(s marker)
(let
((tokens (get s :tokens)) (out (list)))
(define
loop
(fn
(acc)
(let
((p (get s :pos)))
(cond
((>= p (len tokens)) acc)
((= (get (nth tokens p) :value) marker) acc)
(true
(do
(dict-set! s :pos (+ p 1))
(loop (append acc (list (nth tokens p))))))))))
(loop out))))
;; Consume until the next whitespace token; returns the consumed list.
(define
hs-stream-consume-until-ws
(fn
(s)
(let
((tokens (get s :tokens)))
(define
loop
(fn
(acc)
(let
((p (get s :pos)))
(cond
((>= p (len tokens)) acc)
((= (get (nth tokens p) :type) "whitespace") acc)
(true
(do
(dict-set! s :pos (+ p 1))
(loop (append acc (list (nth tokens p))))))))))
(loop (list)))))
;; Follow-set management.
(define hs-stream-push-follow! (fn (s v) (dict-set! s :follows (cons v (get s :follows)))))
(define
hs-stream-pop-follow!
(fn (s) (let ((f (get s :follows))) (when (> (len f) 0) (dict-set! s :follows (rest f))))))
(define
hs-stream-push-follows!
(fn (s vs) (for-each (fn (v) (hs-stream-push-follow! s v)) vs)))
(define
hs-stream-pop-follows!
(fn (s n) (when (> n 0) (do (hs-stream-pop-follow! s) (hs-stream-pop-follows! s (- n 1))))))
(define
hs-stream-clear-follows!
(fn (s) (let ((saved (get s :follows))) (do (dict-set! s :follows (list)) saved))))
(define
hs-stream-restore-follows!
(fn (s saved) (dict-set! s :follows saved)))
;; Last-consumed token / whitespace.
(define hs-stream-last-match (fn (s) (get s :last-match)))
(define hs-stream-last-ws (fn (s) (get s :last-ws)))
tokens)))

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@@ -1,214 +0,0 @@
;; lib/kernel/eval.sx — Kernel evaluator.
;;
;; The evaluator is `lookup-and-combine`: there are no hardcoded special
;; forms. Even $if / $define! / $lambda are ordinary operatives bound in
;; the standard environment (Phase 4). This file builds the dispatch
;; machinery and the operative/applicative tagged-value protocol.
;;
;; Tagged values
;; -------------
;; {:refl-tag :env :bindings DICT :parent PARENT-OR-NIL}
;; A first-class Kernel environment. Bindings is a mutable SX dict
;; keyed by symbol name; parent walks up the lookup chain. Shape
;; and operations are inherited from lib/guest/reflective/env.sx
;; (canonical wire shape) — Kernel-side names are thin wrappers.
;;
;; {:knl-tag :operative :impl FN}
;; Primitive operative. FN receives (args dyn-env) — args are the
;; UN-evaluated argument expressions, dyn-env is the calling env.
;;
;; {:knl-tag :operative :params P :env-param EP :body B :static-env SE}
;; User-defined operative (built by $vau). Same tag; dispatch in
;; kernel-call-operative forks on which keys are present.
;;
;; {:knl-tag :applicative :underlying OP}
;; An applicative wraps an operative. Calls evaluate args first,
;; then forward to the underlying operative.
;;
;; The env-param of a user operative may be the sentinel :knl-ignore,
;; in which case the dynamic env is not bound.
;;
;; Public API
;; (kernel-eval EXPR ENV) — primary entry
;; (kernel-combine COMBINER ARGS DYN-ENV)
;; (kernel-call-operative OP ARGS DYN-ENV)
;; (kernel-bind-params! ENV PARAMS ARGS)
;; (kernel-make-env) / (kernel-extend-env P)
;; (kernel-env-bind! E N V) / (kernel-env-lookup E N)
;; (kernel-env-has? E N) / (kernel-env? V)
;; (kernel-make-primitive-operative IMPL)
;; (kernel-make-primitive-applicative IMPL)
;; (kernel-make-user-operative PARAMS EPARAM BODY STATIC-ENV)
;; (kernel-wrap OP) / (kernel-unwrap APP)
;; (kernel-operative? V) / (kernel-applicative? V) / (kernel-combiner? V)
;;
;; Consumes: lib/kernel/parser.sx (kernel-string?, kernel-string-value)
;; ── Environments — delegated to lib/guest/reflective/env.sx ──────
;; The env values themselves now carry `:refl-tag :env` (shared with the
;; reflective kit). Kernel's API names stay; bodies are thin wrappers.
(define kernel-env? refl-env?)
(define kernel-make-env refl-make-env)
(define kernel-extend-env refl-extend-env)
(define kernel-env-bind! refl-env-bind!)
(define kernel-env-has? refl-env-has?)
(define kernel-env-lookup refl-env-lookup)
;; ── Tagged-value constructors and predicates ─────────────────────
(define kernel-make-primitive-operative (fn (impl) {:impl impl :knl-tag :operative}))
(define
kernel-make-user-operative
(fn (params eparam body static-env) {:knl-tag :operative :static-env static-env :params params :body body :env-param eparam}))
(define
kernel-operative?
(fn (v) (and (dict? v) (= (get v :knl-tag) :operative))))
(define
kernel-applicative?
(fn (v) (and (dict? v) (= (get v :knl-tag) :applicative))))
(define
kernel-combiner?
(fn (v) (or (kernel-operative? v) (kernel-applicative? v))))
(define
kernel-wrap
(fn
(op)
(cond
((kernel-operative? op) {:knl-tag :applicative :underlying op})
(:else (error "kernel-wrap: argument must be an operative")))))
(define
kernel-unwrap
(fn
(app)
(cond
((kernel-applicative? app) (get app :underlying))
(:else (error "kernel-unwrap: argument must be an applicative")))))
(define
kernel-make-primitive-applicative
(fn
(impl)
(kernel-wrap
(kernel-make-primitive-operative (fn (args dyn-env) (impl args))))))
;; As above, but IMPL receives (args dyn-env). Used by combinators that
;; re-enter the evaluator (map, filter, reduce, apply, eval, ...).
(define kernel-make-primitive-applicative-with-env
(fn (impl)
(kernel-wrap
(kernel-make-primitive-operative
(fn (args dyn-env) (impl args dyn-env))))))
;; ── The evaluator ────────────────────────────────────────────────
(define
kernel-eval
(fn
(expr env)
(cond
((number? expr) expr)
((boolean? expr) expr)
((nil? expr) expr)
((kernel-string? expr) (kernel-string-value expr))
((string? expr) (kernel-env-lookup env expr))
((list? expr)
(cond
((= (length expr) 0) expr)
(:else
(let
((combiner (kernel-eval (first expr) env))
(args (rest expr)))
(kernel-combine combiner args env)))))
(:else (error (str "kernel-eval: unknown form: " expr))))))
(define
kernel-combine
(fn
(combiner args dyn-env)
(cond
((kernel-operative? combiner)
(kernel-call-operative combiner args dyn-env))
((kernel-applicative? combiner)
(kernel-combine
(get combiner :underlying)
(kernel-eval-args args dyn-env)
dyn-env))
(:else (error (str "kernel-eval: not a combiner: " combiner))))))
;; Operatives may be primitive (:impl is a host fn) or user-defined
;; (carry :params / :env-param / :body / :static-env). The dispatch
;; fork is here so kernel-combine stays small.
(define
kernel-call-operative
(fn
(op args dyn-env)
(cond
((dict-has? op :impl) ((get op :impl) args dyn-env))
((dict-has? op :body)
(let
((local (kernel-extend-env (get op :static-env))))
(kernel-bind-params! local (get op :params) args)
(let
((eparam (get op :env-param)))
(when
(not (= eparam :knl-ignore))
(kernel-env-bind! local eparam dyn-env)))
;; :body is a list of forms — evaluate in sequence, return last.
(knl-eval-body (get op :body) local)))
(:else (error "kernel-call-operative: malformed operative")))))
(define knl-eval-body
(fn (forms env)
(cond
((= (length forms) 1) (kernel-eval (first forms) env))
(:else
(begin
(kernel-eval (first forms) env)
(knl-eval-body (rest forms) env))))))
;; Phase 3 supports a flat parameter list only — destructuring later.
(define
kernel-bind-params!
(fn
(env params args)
(cond
((or (nil? params) (= (length params) 0))
(cond
((or (nil? args) (= (length args) 0)) nil)
(:else (error "kernel-call: too many arguments"))))
((or (nil? args) (= (length args) 0))
(error "kernel-call: too few arguments"))
(:else
(begin
(kernel-env-bind! env (first params) (first args))
(kernel-bind-params! env (rest params) (rest args)))))))
(define
kernel-eval-args
(fn
(args env)
(cond
((or (nil? args) (= (length args) 0)) (list))
(:else
(cons
(kernel-eval (first args) env)
(kernel-eval-args (rest args) env))))))
(define
kernel-eval-program
(fn
(forms env)
(cond
((or (nil? forms) (= (length forms) 0)) nil)
((= (length forms) 1) (kernel-eval (first forms) env))
(:else
(begin
(kernel-eval (first forms) env)
(kernel-eval-program (rest forms) env))))))

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@@ -1,253 +0,0 @@
;; lib/kernel/parser.sx — Kernel s-expression reader.
;;
;; Reads R-1RK lexical syntax: numbers, strings, symbols, booleans (#t/#f),
;; the empty list (), nested lists, and ; line comments. Reader macros
;; (' ` , ,@) deferred to Phase 6 per the plan.
;;
;; Public AST shape:
;; number → SX number
;; #t / #f → SX true / false
;; () → SX empty list (Kernel's nil — the empty list)
;; "..." → {:knl-string "..."} wrapped to distinguish from symbols
;; foo → "foo" bare SX string is a Kernel symbol
;; (a b c) → SX list of forms
;;
;; Public API:
;; (kernel-parse SRC) — first form; errors on extra trailing input
;; (kernel-parse-all SRC) — all top-level forms, as SX list
;; (kernel-string? V) — recognise wrapped string literal
;; (kernel-string-value V) — extract the underlying string
;;
;; Consumes: lib/guest/lex.sx (lex-digit?, lex-whitespace?)
(define kernel-string-make (fn (s) {:knl-string s}))
(define
kernel-string?
(fn (v) (and (dict? v) (string? (get v :knl-string)))))
(define kernel-string-value (fn (v) (get v :knl-string)))
;; Atom delimiters: characters that end a symbol or numeric token.
(define
knl-delim?
(fn
(c)
(or
(nil? c)
(lex-whitespace? c)
(= c "(")
(= c ")")
(= c "\"")
(= c ";")
(= c "'")
(= c "`")
(= c ","))))
;; Numeric grammar: [+-]? (digit+ ('.' digit+)? | '.' digit+) ([eE][+-]?digit+)?
(define
knl-numeric?
(fn
(s)
(let
((n (string-length s)))
(cond
((= n 0) false)
(:else
(let
((c0 (substring s 0 1)))
(let
((start (if (or (= c0 "+") (= c0 "-")) 1 0)))
(knl-num-body? s start n))))))))
(define
knl-num-body?
(fn
(s start n)
(cond
((>= start n) false)
((= (substring s start (+ start 1)) ".")
(knl-num-need-digits? s (+ start 1) n false))
((lex-digit? (substring s start (+ start 1)))
(knl-num-int-tail? s (+ start 1) n))
(:else false))))
(define
knl-num-int-tail?
(fn
(s i n)
(cond
((>= i n) true)
((lex-digit? (substring s i (+ i 1)))
(knl-num-int-tail? s (+ i 1) n))
((= (substring s i (+ i 1)) ".")
(knl-num-need-digits? s (+ i 1) n true))
((or (= (substring s i (+ i 1)) "e") (= (substring s i (+ i 1)) "E"))
(knl-num-exp-sign? s (+ i 1) n))
(:else false))))
(define
knl-num-need-digits?
(fn
(s i n had-int)
(cond
((>= i n) had-int)
((lex-digit? (substring s i (+ i 1)))
(knl-num-frac-tail? s (+ i 1) n))
(:else false))))
(define
knl-num-frac-tail?
(fn
(s i n)
(cond
((>= i n) true)
((lex-digit? (substring s i (+ i 1)))
(knl-num-frac-tail? s (+ i 1) n))
((or (= (substring s i (+ i 1)) "e") (= (substring s i (+ i 1)) "E"))
(knl-num-exp-sign? s (+ i 1) n))
(:else false))))
(define
knl-num-exp-sign?
(fn
(s i n)
(cond
((>= i n) false)
((or (= (substring s i (+ i 1)) "+") (= (substring s i (+ i 1)) "-"))
(knl-num-exp-digits? s (+ i 1) n false))
(:else (knl-num-exp-digits? s i n false)))))
(define
knl-num-exp-digits?
(fn
(s i n had)
(cond
((>= i n) had)
((lex-digit? (substring s i (+ i 1)))
(knl-num-exp-digits? s (+ i 1) n true))
(:else false))))
;; Reader: a closure over (src, pos). Exposes :read-form and :read-all.
(define
knl-make-reader
(fn
(src)
(let
((pos 0) (n (string-length src)))
(define
at
(fn () (if (< pos n) (substring src pos (+ pos 1)) nil)))
(define adv (fn () (set! pos (+ pos 1))))
(define
skip-line
(fn () (when (and (at) (not (= (at) "\n"))) (adv) (skip-line))))
(define
skip-ws
(fn
()
(cond
((nil? (at)) nil)
((lex-whitespace? (at)) (do (adv) (skip-ws)))
((= (at) ";") (do (adv) (skip-line) (skip-ws)))
(:else nil))))
(define
read-string-body
(fn
(acc)
(cond
((nil? (at)) (error "kernel-parse: unterminated string"))
((= (at) "\"") (do (adv) acc))
((= (at) "\\")
(do
(adv)
(let
((c (at)))
(when (nil? c) (error "kernel-parse: trailing backslash"))
(adv)
(read-string-body
(str
acc
(cond
((= c "n") "\n")
((= c "t") "\t")
((= c "r") "\r")
((= c "\"") "\"")
((= c "\\") "\\")
(:else c)))))))
(:else
(let ((c (at))) (adv) (read-string-body (str acc c)))))))
(define
read-atom-body
(fn
(acc)
(cond
((knl-delim? (at)) acc)
(:else (let ((c (at))) (adv) (read-atom-body (str acc c)))))))
(define
classify-atom
(fn
(s)
(cond
((= s "#t") true)
((= s "#f") false)
((knl-numeric? s) (string->number s))
(:else s))))
(define
read-form
(fn
()
(skip-ws)
(cond
((nil? (at)) :knl-eof)
((= (at) ")") (error "kernel-parse: unexpected ')'"))
((= (at) "(") (do (adv) (read-list (list))))
((= (at) "\"")
(do (adv) (kernel-string-make (read-string-body ""))))
((= (at) "'")
(do (adv) (list "$quote" (read-form))))
((= (at) "`")
(do (adv) (list "$quasiquote" (read-form))))
((= (at) ",")
(do (adv)
(cond
((= (at) "@")
(do (adv) (list "$unquote-splicing" (read-form))))
(:else (list "$unquote" (read-form))))))
(:else (classify-atom (read-atom-body ""))))))
(define
read-list
(fn
(acc)
(skip-ws)
(cond
((nil? (at)) (error "kernel-parse: unterminated list"))
((= (at) ")") (do (adv) acc))
(:else (read-list (append acc (list (read-form))))))))
(define
read-all
(fn
(acc)
(skip-ws)
(if (nil? (at)) acc (read-all (append acc (list (read-form)))))))
{:read-form read-form :read-all read-all})))
(define
kernel-parse-all
(fn (src) ((get (knl-make-reader src) :read-all) (list))))
(define
kernel-parse
(fn
(src)
(let
((r (knl-make-reader src)))
(let
((form ((get r :read-form))))
(cond
((= form :knl-eof) (error "kernel-parse: empty input"))
(:else
(let
((next ((get r :read-form))))
(if
(= next :knl-eof)
form
(error "kernel-parse: trailing input after first form")))))))))

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@@ -1,911 +0,0 @@
;; lib/kernel/runtime.sx — the operativeapplicative substrate and the
;; standard Kernel environment.
;;
;; Phase 3 supplied four user-visible combiners ($vau, $lambda, wrap,
;; unwrap). Phase 4 fills out the rest of the R-1RK core: $if, $define!,
;; $sequence, eval, make-environment, get-current-environment, plus
;; arithmetic, equality, list/pair, and boolean primitives — enough to
;; write factorial.
;;
;; The standard env is built by EXTENDING the base env, not replacing
;; it. So `kernel-standard-env` includes everything from `kernel-base-env`.
;;
;; Public API
;; (kernel-base-env) — Phase 3 combiners
;; (kernel-standard-env) — Phase 4 standard environment
(define
knl-eparam-sentinel
(fn
(sym)
(cond
((= sym "_") :knl-ignore)
((= sym "#ignore") :knl-ignore)
(:else sym))))
(define
knl-formals-ok?
(fn
(formals)
(cond
((not (list? formals)) false)
((= (length formals) 0) true)
((string? (first formals)) (knl-formals-ok? (rest formals)))
(:else false))))
;; ── $vau ─────────────────────────────────────────────────────────
(define
kernel-vau-impl
(fn
(args dyn-env)
(cond
((< (length args) 3)
(error "$vau: expects (formals env-param body...)"))
(:else
(let
((formals (first args))
(eparam-raw (nth args 1))
(body-forms (rest (rest args))))
(cond
((not (knl-formals-ok? formals))
(error "$vau: formals must be a list of symbols"))
((not (string? eparam-raw))
(error "$vau: env-param must be a symbol"))
(:else
(kernel-make-user-operative
formals
(knl-eparam-sentinel eparam-raw)
body-forms
dyn-env))))))))
(define
kernel-vau-operative
(kernel-make-primitive-operative kernel-vau-impl))
;; ── $lambda ──────────────────────────────────────────────────────
(define
kernel-lambda-impl
(fn
(args dyn-env)
(cond
((< (length args) 2)
(error "$lambda: expects (formals body...)"))
(:else
(let
((formals (first args)) (body-forms (rest args)))
(cond
((not (knl-formals-ok? formals))
(error "$lambda: formals must be a list of symbols"))
(:else
(kernel-wrap
(kernel-make-user-operative
formals
:knl-ignore
body-forms
dyn-env)))))))))
(define
kernel-lambda-operative
(kernel-make-primitive-operative kernel-lambda-impl))
;; ── wrap / unwrap / predicates ───────────────────────────────────
(define
kernel-wrap-applicative
(kernel-make-primitive-applicative
(fn
(args)
(cond
((not (= (length args) 1))
(error "wrap: expects exactly 1 argument"))
(:else (kernel-wrap (first args)))))))
(define
kernel-unwrap-applicative
(kernel-make-primitive-applicative
(fn
(args)
(cond
((not (= (length args) 1))
(error "unwrap: expects exactly 1 argument"))
(:else (kernel-unwrap (first args)))))))
(define
kernel-operative?-applicative
(kernel-make-primitive-applicative
(fn (args) (kernel-operative? (first args)))))
(define
kernel-applicative?-applicative
(kernel-make-primitive-applicative
(fn (args) (kernel-applicative? (first args)))))
(define
kernel-base-env
(fn
()
(let
((env (kernel-make-env)))
(kernel-env-bind! env "$vau" kernel-vau-operative)
(kernel-env-bind! env "$lambda" kernel-lambda-operative)
(kernel-env-bind! env "wrap" kernel-wrap-applicative)
(kernel-env-bind! env "unwrap" kernel-unwrap-applicative)
(kernel-env-bind! env "operative?" kernel-operative?-applicative)
(kernel-env-bind! env "applicative?" kernel-applicative?-applicative)
env)))
;; ── $if / $define! / $sequence ───────────────────────────────────
(define
kernel-if-operative
(kernel-make-primitive-operative
(fn
(args dyn-env)
(cond
((not (= (length args) 3))
(error "$if: expects (condition then-expr else-expr)"))
(:else
(let
((c (kernel-eval (first args) dyn-env)))
(if
c
(kernel-eval (nth args 1) dyn-env)
(kernel-eval (nth args 2) dyn-env))))))))
(define
kernel-define!-operative
(kernel-make-primitive-operative
(fn
(args dyn-env)
(cond
((not (= (length args) 2))
(error "$define!: expects (name expr)"))
((not (string? (first args)))
(error "$define!: name must be a symbol"))
(:else
(let
((v (kernel-eval (nth args 1) dyn-env)))
(kernel-env-bind! dyn-env (first args) v)
v))))))
(define
kernel-sequence-operative
(kernel-make-primitive-operative
(fn
(args dyn-env)
(cond
((or (nil? args) (= (length args) 0)) nil)
((= (length args) 1) (kernel-eval (first args) dyn-env))
(:else
(begin
(kernel-eval (first args) dyn-env)
((get kernel-sequence-operative :impl) (rest args) dyn-env)))))))
;; ── eval / make-environment / get-current-environment ───────────
(define
kernel-quote-operative
(kernel-make-primitive-operative
(fn
(args dyn-env)
(cond
((not (= (length args) 1)) (error "$quote: expects 1 argument"))
(:else (first args))))))
;; Quasiquote: walks the template, evaluating `$unquote` forms in the
;; dynamic env and splicing `$unquote-splicing` list results.
(define knl-quasi-walk
(fn (form dyn-env)
(cond
((not (list? form)) form)
((= (length form) 0) form)
((and (string? (first form)) (= (first form) "$unquote"))
(cond
((not (= (length form) 2))
(error "$unquote: expects exactly 1 argument"))
(:else (kernel-eval (nth form 1) dyn-env))))
(:else (knl-quasi-walk-list form dyn-env)))))
(define knl-quasi-walk-list
(fn (forms dyn-env)
(cond
((or (nil? forms) (= (length forms) 0)) (list))
(:else
(let ((head (first forms)))
(cond
((and (list? head)
(= (length head) 2)
(string? (first head))
(= (first head) "$unquote-splicing"))
(let ((spliced (kernel-eval (nth head 1) dyn-env)))
(cond
((not (list? spliced))
(error "$unquote-splicing: value must be a list"))
(:else
(knl-list-concat
spliced
(knl-quasi-walk-list (rest forms) dyn-env))))))
(:else
(cons (knl-quasi-walk head dyn-env)
(knl-quasi-walk-list (rest forms) dyn-env)))))))))
(define knl-list-concat
(fn (xs ys)
(cond
((or (nil? xs) (= (length xs) 0)) ys)
(:else (cons (first xs) (knl-list-concat (rest xs) ys))))))
;; $cond — multi-clause branch.
;; ($cond (TEST1 EXPR1 ...) (TEST2 EXPR2 ...) ...)
;; Evaluates each TEST in order; first truthy one runs its EXPRs (in
;; sequence) and returns the last; if no TEST is truthy, returns nil.
;; A clause with TEST = `else` always matches (sugar for $if's default).
(define knl-cond-impl
(fn (clauses dyn-env)
(cond
((or (nil? clauses) (= (length clauses) 0)) nil)
(:else
(let ((clause (first clauses)))
(cond
((not (list? clause))
(error "$cond: each clause must be a list"))
((= (length clause) 0)
(error "$cond: empty clause"))
((and (string? (first clause)) (= (first clause) "else"))
(knl-cond-eval-body (rest clause) dyn-env))
(:else
(let ((test-val (kernel-eval (first clause) dyn-env)))
(cond
(test-val (knl-cond-eval-body (rest clause) dyn-env))
(:else (knl-cond-impl (rest clauses) dyn-env)))))))))))
(define knl-cond-eval-body
(fn (body dyn-env)
(cond
((or (nil? body) (= (length body) 0)) nil)
((= (length body) 1) (kernel-eval (first body) dyn-env))
(:else
(begin
(kernel-eval (first body) dyn-env)
(knl-cond-eval-body (rest body) dyn-env))))))
(define kernel-cond-operative
(kernel-make-primitive-operative
(fn (args dyn-env) (knl-cond-impl args dyn-env))))
;; $when COND BODY... — evaluate body iff COND is truthy; else nil.
(define kernel-when-operative
(kernel-make-primitive-operative
(fn (args dyn-env)
(cond
((< (length args) 1)
(error "$when: expects (cond body...)"))
(:else
(let ((c (kernel-eval (first args) dyn-env)))
(cond
(c (knl-cond-eval-body (rest args) dyn-env))
(:else nil))))))))
;; $and? — short-circuit AND. Operative (not applicative) so untaken
;; clauses are NOT evaluated. Empty $and? returns true (the identity).
(define knl-and?-impl
(fn (args dyn-env)
(cond
((or (nil? args) (= (length args) 0)) true)
((= (length args) 1) (kernel-eval (first args) dyn-env))
(:else
(let ((v (kernel-eval (first args) dyn-env)))
(cond
(v (knl-and?-impl (rest args) dyn-env))
(:else v)))))))
(define kernel-and?-operative
(kernel-make-primitive-operative knl-and?-impl))
;; $or? — short-circuit OR. Operative; untaken clauses NOT evaluated.
;; Empty $or? returns false (the identity).
(define knl-or?-impl
(fn (args dyn-env)
(cond
((or (nil? args) (= (length args) 0)) false)
((= (length args) 1) (kernel-eval (first args) dyn-env))
(:else
(let ((v (kernel-eval (first args) dyn-env)))
(cond
(v v)
(:else (knl-or?-impl (rest args) dyn-env))))))))
(define kernel-or?-operative
(kernel-make-primitive-operative knl-or?-impl))
;; $unless COND BODY... — evaluate body iff COND is falsy; else nil.
(define kernel-unless-operative
(kernel-make-primitive-operative
(fn (args dyn-env)
(cond
((< (length args) 1)
(error "$unless: expects (cond body...)"))
(:else
(let ((c (kernel-eval (first args) dyn-env)))
(cond
(c nil)
(:else (knl-cond-eval-body (rest args) dyn-env)))))))))
(define kernel-quasiquote-operative
(kernel-make-primitive-operative
(fn (args dyn-env)
(cond
((not (= (length args) 1))
(error "$quasiquote: expects exactly 1 argument"))
(:else (knl-quasi-walk (first args) dyn-env))))))
(define
kernel-eval-applicative
(kernel-make-primitive-applicative
(fn
(args)
(cond
((not (= (length args) 2))
(error "eval: expects (expr env)"))
((not (kernel-env? (nth args 1)))
(error "eval: second arg must be a kernel env"))
(:else (kernel-eval (first args) (nth args 1)))))))
(define
kernel-make-environment-applicative
(kernel-make-primitive-applicative
(fn
(args)
(cond
((= (length args) 0) (kernel-make-env))
((= (length args) 1)
(cond
((not (kernel-env? (first args)))
(error "make-environment: parent must be a kernel env"))
(:else (kernel-extend-env (first args)))))
(:else (error "make-environment: 0 or 1 argument"))))))
;; ── arithmetic and comparison (binary; trivial to extend later) ─
(define
kernel-get-current-env-operative
(kernel-make-primitive-operative
(fn
(args dyn-env)
(cond
((not (= (length args) 0))
(error "get-current-environment: expects 0 arguments"))
(:else dyn-env)))))
(define
knl-bin-app
(fn
(name f)
(kernel-make-primitive-applicative
(fn
(args)
(cond
((not (= (length args) 2))
(error (str name ": expects 2 arguments")))
(:else (f (first args) (nth args 1))))))))
;; Variadic left-fold helper. ZERO-RES is the identity (`(+)` → 0);
;; ONE-FN handles single-arg case (`(- x)` negates; `(+ x)` returns x).
(define knl-fold-step
(fn (f acc rest-args)
(cond
((or (nil? rest-args) (= (length rest-args) 0)) acc)
(:else
(knl-fold-step f (f acc (first rest-args)) (rest rest-args))))))
(define knl-fold-app
(fn (name f zero-res one-fn)
(kernel-make-primitive-applicative
(fn (args)
(cond
((= (length args) 0) zero-res)
((= (length args) 1) (one-fn (first args)))
(:else (knl-fold-step f (first args) (rest args))))))))
;; Variadic n-ary chained comparison: `(< 1 2 3)` ≡ `(< 1 2)` AND `(< 2 3)`.
(define knl-chain-step
(fn (cmp prev rest-args)
(cond
((or (nil? rest-args) (= (length rest-args) 0)) true)
(:else
(let ((next (first rest-args)))
(cond
((cmp prev next)
(knl-chain-step cmp next (rest rest-args)))
(:else false)))))))
(define knl-chain-cmp
(fn (name cmp)
(kernel-make-primitive-applicative
(fn (args)
(cond
((< (length args) 2)
(error (str name ": expects at least 2 arguments")))
(:else (knl-chain-step cmp (first args) (rest args))))))))
;; ── list / pair primitives ──────────────────────────────────────
(define
knl-unary-app
(fn
(name f)
(kernel-make-primitive-applicative
(fn
(args)
(cond
((not (= (length args) 1))
(error (str name ": expects 1 argument")))
(:else (f (first args))))))))
(define kernel-cons-applicative (knl-bin-app "cons" (fn (a b) (cons a b))))
(define
kernel-car-applicative
(knl-unary-app
"car"
(fn
(xs)
(cond
((or (nil? xs) (and (list? xs) (= (length xs) 0)))
(error "car: empty list"))
(:else (first xs))))))
(define
kernel-cdr-applicative
(knl-unary-app
"cdr"
(fn
(xs)
(cond
((or (nil? xs) (and (list? xs) (= (length xs) 0)))
(error "cdr: empty list"))
(:else (rest xs))))))
(define
kernel-list-applicative
(kernel-make-primitive-applicative (fn (args) args)))
(define
kernel-length-applicative
(knl-unary-app "length" (fn (xs) (length xs))))
(define
kernel-null?-applicative
(knl-unary-app
"null?"
(fn (v) (or (nil? v) (and (list? v) (= (length v) 0))))))
;; ── boolean / equality ──────────────────────────────────────────
(define
kernel-pair?-applicative
(knl-unary-app
"pair?"
(fn (v) (and (list? v) (> (length v) 0)))))
(define knl-append-step
(fn (xs ys)
(cond
((or (nil? xs) (= (length xs) 0)) ys)
(:else (cons (first xs) (knl-append-step (rest xs) ys))))))
(define knl-all-lists?
(fn (xs)
(cond
((or (nil? xs) (= (length xs) 0)) true)
((list? (first xs)) (knl-all-lists? (rest xs)))
(:else false))))
(define knl-append-all
(fn (lists)
(cond
((or (nil? lists) (= (length lists) 0)) (list))
((= (length lists) 1) (first lists))
(:else
(knl-append-step (first lists)
(knl-append-all (rest lists)))))))
(define kernel-append-applicative
(kernel-make-primitive-applicative
(fn (args)
(cond
((knl-all-lists? args) (knl-append-all args))
(:else (error "append: all arguments must be lists"))))))
(define knl-reverse-step
(fn (xs acc)
(cond
((or (nil? xs) (= (length xs) 0)) acc)
(:else (knl-reverse-step (rest xs) (cons (first xs) acc))))))
(define kernel-reverse-applicative
(knl-unary-app "reverse"
(fn (xs)
(cond
((not (list? xs)) (error "reverse: argument must be a list"))
(:else (knl-reverse-step xs (list)))))))
(define kernel-not-applicative (knl-unary-app "not" (fn (v) (not v))))
;; Type predicates (Kernel-visible). Note `string?` covers BOTH symbols
;; and string-literals in our representation (symbols are bare SX
;; strings); a `kernel-string?` applicative distinguishes the two if
;; needed.
(define kernel-number?-applicative
(knl-unary-app "number?" (fn (v) (number? v))))
(define kernel-string?-applicative
(knl-unary-app "string?" (fn (v) (string? v))))
(define kernel-list?-applicative
(knl-unary-app "list?" (fn (v) (list? v))))
(define kernel-boolean?-applicative
(knl-unary-app "boolean?" (fn (v) (boolean? v))))
(define kernel-symbol?-applicative
(knl-unary-app "symbol?" (fn (v) (string? v))))
(define kernel-eq?-applicative (knl-bin-app "eq?" (fn (a b) (= a b))))
;; ── the standard environment ────────────────────────────────────
(define
kernel-equal?-applicative
(knl-bin-app "equal?" (fn (a b) (= a b))))
;; ── List combinators: map / filter / reduce ─────────────────────
;; These re-enter the evaluator on each element, so they use the
;; with-env applicative constructor.
;; When the combiner is an applicative, we MUST unwrap before calling
;; — otherwise kernel-combine will re-evaluate the already-evaluated
;; element values (and crash if an element is itself a list).
(define knl-apply-op
(fn (combiner)
(cond
((kernel-applicative? combiner) (kernel-unwrap combiner))
(:else combiner))))
(define knl-map-step
(fn (fn-val xs dyn-env)
(let ((op (knl-apply-op fn-val)))
(knl-map-walk op xs dyn-env))))
(define knl-map-walk
(fn (op xs dyn-env)
(cond
((or (nil? xs) (= (length xs) 0)) (list))
(:else
(cons (kernel-combine op (list (first xs)) dyn-env)
(knl-map-walk op (rest xs) dyn-env))))))
(define kernel-map-applicative
(kernel-make-primitive-applicative-with-env
(fn (args dyn-env)
(cond
((not (= (length args) 2))
(error "map: expects (fn list)"))
((not (kernel-combiner? (first args)))
(error "map: first arg must be a combiner"))
((not (list? (nth args 1)))
(error "map: second arg must be a list"))
(:else (knl-map-step (first args) (nth args 1) dyn-env))))))
(define knl-filter-step
(fn (pred xs dyn-env)
(knl-filter-walk (knl-apply-op pred) xs dyn-env)))
(define knl-filter-walk
(fn (op xs dyn-env)
(cond
((or (nil? xs) (= (length xs) 0)) (list))
(:else
(let ((keep? (kernel-combine op (list (first xs)) dyn-env)))
(cond
(keep?
(cons (first xs) (knl-filter-walk op (rest xs) dyn-env)))
(:else (knl-filter-walk op (rest xs) dyn-env))))))))
(define kernel-filter-applicative
(kernel-make-primitive-applicative-with-env
(fn (args dyn-env)
(cond
((not (= (length args) 2))
(error "filter: expects (pred list)"))
((not (kernel-combiner? (first args)))
(error "filter: first arg must be a combiner"))
((not (list? (nth args 1)))
(error "filter: second arg must be a list"))
(:else (knl-filter-step (first args) (nth args 1) dyn-env))))))
(define knl-reduce-step
(fn (fn-val xs acc dyn-env)
(knl-reduce-walk (knl-apply-op fn-val) xs acc dyn-env)))
(define knl-reduce-walk
(fn (op xs acc dyn-env)
(cond
((or (nil? xs) (= (length xs) 0)) acc)
(:else
(knl-reduce-walk
op
(rest xs)
(kernel-combine op (list acc (first xs)) dyn-env)
dyn-env)))))
;; (apply COMBINER ARGS-LIST) — call COMBINER with the elements of
;; ARGS-LIST as arguments. The Kernel canonical use: turn a constructed
;; list of values into a function call. We skip the applicative's
;; auto-eval step (via unwrap) because ARGS-LIST is already values, not
;; expressions; for a bare operative, we pass through directly.
(define kernel-apply-applicative
(kernel-make-primitive-applicative-with-env
(fn (args dyn-env)
(cond
((not (= (length args) 2))
(error "apply: expects (combiner args-list)"))
((not (kernel-combiner? (first args)))
(error "apply: first arg must be a combiner"))
((not (list? (nth args 1)))
(error "apply: second arg must be a list"))
(:else
(let ((op (cond
((kernel-applicative? (first args))
(kernel-unwrap (first args)))
(:else (first args)))))
(kernel-combine op (nth args 1) dyn-env)))))))
(define kernel-reduce-applicative
(kernel-make-primitive-applicative-with-env
(fn (args dyn-env)
(cond
((not (= (length args) 3))
(error "reduce: expects (fn init list)"))
((not (kernel-combiner? (first args)))
(error "reduce: first arg must be a combiner"))
((not (list? (nth args 2)))
(error "reduce: third arg must be a list"))
(:else
(knl-reduce-step (first args) (nth args 2)
(nth args 1) dyn-env))))))
;; ── Encapsulations: Kernel's opaque-type idiom ──────────────────
;;
;; (make-encapsulation-type) → (encapsulator predicate decapsulator)
;;
;; Each call returns three applicatives over a fresh family identity.
;; - (encapsulator V) → an opaque wrapper around V.
;; - (predicate V) → true iff V was wrapped by THIS family.
;; - (decapsulator W) → the inner value; errors on wrong family.
;;
;; Family identity is a fresh empty dict; SX compares dicts by reference,
;; so two `(make-encapsulation-type)` calls return distinct families.
;;
;; Pattern usage (Phase 5 lacks destructuring, so accessors are explicit):
;; ($define! triple (make-encapsulation-type))
;; ($define! wrap-promise (car triple))
;; ($define! promise? (car (cdr triple)))
;; ($define! unwrap-promise (car (cdr (cdr triple))))
(define kernel-make-encap-type-impl
(fn (args)
(cond
((not (= (length args) 0))
(error "make-encapsulation-type: expects 0 arguments"))
(:else
(let ((family {}))
(let ((encap
(kernel-make-primitive-applicative
(fn (vargs)
(cond
((not (= (length vargs) 1))
(error "encapsulator: expects 1 argument"))
(:else
{:knl-tag :encap
:family family
:value (first vargs)})))))
(pred
(kernel-make-primitive-applicative
(fn (vargs)
(cond
((not (= (length vargs) 1))
(error "predicate: expects 1 argument"))
(:else
(let ((v (first vargs)))
(and (dict? v)
(= (get v :knl-tag) :encap)
(= (get v :family) family))))))))
(decap
(kernel-make-primitive-applicative
(fn (vargs)
(cond
((not (= (length vargs) 1))
(error "decapsulator: expects 1 argument"))
(:else
(let ((v (first vargs)))
(cond
((not (and (dict? v)
(= (get v :knl-tag) :encap)))
(error "decapsulator: not an encapsulation"))
((not (= (get v :family) family))
(error "decapsulator: wrong family"))
(:else (get v :value))))))))))
(list encap pred decap)))))))
(define kernel-make-encap-type-applicative
(kernel-make-primitive-applicative kernel-make-encap-type-impl))
;; ── Hygiene: $let, $define-in!, make-environment ────────────────
;;
;; Kernel-on-SX is hygienic *by default* because user-defined operatives
;; (Phase 3) bind their formals + any $define! in a CHILD env extending
;; the operative's static-env, never the dyn-env. The caller's env is
;; only mutated when code explicitly says so (e.g. `(eval expr env-arg)`).
;;
;; Phase 6 adds two helpers that make the property easy to lean on:
;;
;; ($let ((NAME EXPR) ...) BODY)
;; Evaluates each EXPR in the calling env, binds NAME in a fresh
;; child env, evaluates BODY in that child env. NAMES don't leak.
;;
;; ($define-in! ENV NAME EXPR)
;; Binds NAME=value-of-EXPR in the *specified* env, not the dyn-env.
;; Useful for operatives that need to mutate a sandbox env without
;; touching their caller's env.
;;
;; Shutt's full scope-set / frame-stamp hygiene (lifted symbols carrying
;; provenance markers so introduced bindings can shadow without
;; capturing) is research-grade and not implemented here. Notes for
;; `lib/guest/reflective/hygiene.sx` candidate API below the std env.
(define knl-bind-let-vals!
(fn (local bindings dyn-env)
(cond
((or (nil? bindings) (= (length bindings) 0)) nil)
(:else
(let ((b (first bindings)))
(cond
((not (and (list? b) (= (length b) 2)))
(error "$let: each binding must be (name expr)"))
((not (string? (first b)))
(error "$let: binding name must be a symbol"))
(:else
(begin
(kernel-env-bind! local
(first b)
(kernel-eval (nth b 1) dyn-env))
(knl-bind-let-vals! local (rest bindings) dyn-env)))))))))
(define kernel-let-operative
(kernel-make-primitive-operative
(fn (args dyn-env)
(cond
((< (length args) 2)
(error "$let: expects (bindings body...)"))
((not (list? (first args)))
(error "$let: bindings must be a list"))
(:else
(let ((local (kernel-extend-env dyn-env)))
(knl-bind-let-vals! local (first args) dyn-env)
(knl-eval-body (rest args) local)))))))
;; $let* — sequential let. Each binding sees prior names in scope.
;; Implemented by nesting envs one per binding; the body runs in the
;; innermost env, so later bindings shadow earlier ones if names repeat.
(define knl-let*-step
(fn (bindings env body-forms)
(cond
((or (nil? bindings) (= (length bindings) 0))
(knl-eval-body body-forms env))
(:else
(let ((b (first bindings)))
(cond
((not (and (list? b) (= (length b) 2)))
(error "$let*: each binding must be (name expr)"))
((not (string? (first b)))
(error "$let*: binding name must be a symbol"))
(:else
(let ((child (kernel-extend-env env)))
(kernel-env-bind! child
(first b)
(kernel-eval (nth b 1) env))
(knl-let*-step (rest bindings) child body-forms)))))))))
(define kernel-let*-operative
(kernel-make-primitive-operative
(fn (args dyn-env)
(cond
((< (length args) 2)
(error "$let*: expects (bindings body...)"))
((not (list? (first args)))
(error "$let*: bindings must be a list"))
(:else
(knl-let*-step (first args) dyn-env (rest args)))))))
(define kernel-define-in!-operative
(kernel-make-primitive-operative
(fn (args dyn-env)
(cond
((not (= (length args) 3))
(error "$define-in!: expects (env-expr name expr)"))
((not (string? (nth args 1)))
(error "$define-in!: name must be a symbol"))
(:else
(let ((target (kernel-eval (first args) dyn-env)))
(cond
((not (kernel-env? target))
(error "$define-in!: first arg must evaluate to an env"))
(:else
(let ((v (kernel-eval (nth args 2) dyn-env)))
(kernel-env-bind! target (nth args 1) v)
v)))))))))
(define
kernel-standard-env
(fn
()
(let
((env (kernel-base-env)))
(kernel-env-bind! env "$if" kernel-if-operative)
(kernel-env-bind! env "$define!" kernel-define!-operative)
(kernel-env-bind! env "$sequence" kernel-sequence-operative)
(kernel-env-bind! env "$quote" kernel-quote-operative)
(kernel-env-bind! env "$quasiquote" kernel-quasiquote-operative)
(kernel-env-bind! env "$cond" kernel-cond-operative)
(kernel-env-bind! env "$when" kernel-when-operative)
(kernel-env-bind! env "$unless" kernel-unless-operative)
(kernel-env-bind! env "$and?" kernel-and?-operative)
(kernel-env-bind! env "$or?" kernel-or?-operative)
(kernel-env-bind! env "eval" kernel-eval-applicative)
(kernel-env-bind!
env
"make-environment"
kernel-make-environment-applicative)
(kernel-env-bind!
env
"get-current-environment"
kernel-get-current-env-operative)
(kernel-env-bind! env "+"
(knl-fold-app "+" (fn (a b) (+ a b)) 0 (fn (x) x)))
(kernel-env-bind! env "-"
(knl-fold-app "-" (fn (a b) (- a b)) 0 (fn (x) (- 0 x))))
(kernel-env-bind! env "*"
(knl-fold-app "*" (fn (a b) (* a b)) 1 (fn (x) x)))
(kernel-env-bind! env "/"
(knl-fold-app "/" (fn (a b) (/ a b)) 1 (fn (x) (/ 1 x))))
(kernel-env-bind! env "<" (knl-chain-cmp "<" (fn (a b) (< a b))))
(kernel-env-bind! env ">" (knl-chain-cmp ">" (fn (a b) (> a b))))
(kernel-env-bind! env "<=?" (knl-chain-cmp "<=?" (fn (a b) (<= a b))))
(kernel-env-bind! env ">=?" (knl-chain-cmp ">=?" (fn (a b) (>= a b))))
(kernel-env-bind! env "=?" kernel-eq?-applicative)
(kernel-env-bind! env "equal?" kernel-equal?-applicative)
(kernel-env-bind! env "eq?" kernel-eq?-applicative)
(kernel-env-bind! env "cons" kernel-cons-applicative)
(kernel-env-bind! env "car" kernel-car-applicative)
(kernel-env-bind! env "cdr" kernel-cdr-applicative)
(kernel-env-bind! env "list" kernel-list-applicative)
(kernel-env-bind! env "length" kernel-length-applicative)
(kernel-env-bind! env "null?" kernel-null?-applicative)
(kernel-env-bind! env "pair?" kernel-pair?-applicative)
(kernel-env-bind! env "map" kernel-map-applicative)
(kernel-env-bind! env "filter" kernel-filter-applicative)
(kernel-env-bind! env "reduce" kernel-reduce-applicative)
(kernel-env-bind! env "apply" kernel-apply-applicative)
(kernel-env-bind! env "append" kernel-append-applicative)
(kernel-env-bind! env "reverse" kernel-reverse-applicative)
(kernel-env-bind! env "number?" kernel-number?-applicative)
(kernel-env-bind! env "string?" kernel-string?-applicative)
(kernel-env-bind! env "list?" kernel-list?-applicative)
(kernel-env-bind! env "boolean?" kernel-boolean?-applicative)
(kernel-env-bind! env "symbol?" kernel-symbol?-applicative)
(kernel-env-bind! env "not" kernel-not-applicative)
(kernel-env-bind! env "make-encapsulation-type"
kernel-make-encap-type-applicative)
(kernel-env-bind! env "$let" kernel-let-operative)
(kernel-env-bind! env "$let*" kernel-let*-operative)
(kernel-env-bind! env "$define-in!" kernel-define-in!-operative)
env)))

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@@ -1,183 +0,0 @@
;; lib/kernel/tests/encap.sx — exercises make-encapsulation-type.
;;
;; The Phase 5 Kernel idiom: build opaque types whose constructor,
;; predicate, and accessor are all standard Kernel applicatives. The
;; identity is per-call, so two `(make-encapsulation-type)` calls
;; produce non-interchangeable families.
(define ken-test-pass 0)
(define ken-test-fail 0)
(define ken-test-fails (list))
(define
ken-test
(fn
(name actual expected)
(if
(= actual expected)
(set! ken-test-pass (+ ken-test-pass 1))
(begin
(set! ken-test-fail (+ ken-test-fail 1))
(append! ken-test-fails {:name name :actual actual :expected expected})))))
(define ken-eval-in (fn (src env) (kernel-eval (kernel-parse src) env)))
;; A helper that builds a standard env with `encap`/`pred?`/`decap`
;; bound from a single call to make-encapsulation-type.
(define
ken-make-encap-env
(fn
()
(let
((env (kernel-standard-env)))
(ken-eval-in "($define! triple (make-encapsulation-type))" env)
(ken-eval-in "($define! encap (car triple))" env)
(ken-eval-in "($define! pred? (car (cdr triple)))" env)
(ken-eval-in "($define! decap (car (cdr (cdr triple))))" env)
env)))
;; ── construction ────────────────────────────────────────────────
(ken-test
"make: returns 3-element list"
(ken-eval-in "(length (make-encapsulation-type))" (kernel-standard-env))
3)
(ken-test
"make: first is applicative"
(kernel-applicative?
(ken-eval-in "(car (make-encapsulation-type))" (kernel-standard-env)))
true)
(ken-test
"make: second is applicative"
(kernel-applicative?
(ken-eval-in
"(car (cdr (make-encapsulation-type)))"
(kernel-standard-env)))
true)
(ken-test
"make: third is applicative"
(kernel-applicative?
(ken-eval-in
"(car (cdr (cdr (make-encapsulation-type))))"
(kernel-standard-env)))
true)
;; ── round-trip ──────────────────────────────────────────────────
(ken-test
"round-trip: number"
(ken-eval-in "(decap (encap 42))" (ken-make-encap-env))
42)
(ken-test
"round-trip: string"
(ken-eval-in "(decap (encap ($quote hello)))" (ken-make-encap-env))
"hello")
(ken-test
"round-trip: list"
(ken-eval-in "(decap (encap (list 1 2 3)))" (ken-make-encap-env))
(list 1 2 3))
;; ── predicate ───────────────────────────────────────────────────
(ken-test
"pred?: wrapped value"
(ken-eval-in "(pred? (encap 1))" (ken-make-encap-env))
true)
(ken-test
"pred?: raw value"
(ken-eval-in "(pred? 1)" (ken-make-encap-env))
false)
(ken-test
"pred?: raw string"
(ken-eval-in "(pred? ($quote foo))" (ken-make-encap-env))
false)
(ken-test
"pred?: raw list"
(ken-eval-in "(pred? (list))" (ken-make-encap-env))
false)
;; ── opacity: different families are not interchangeable ─────────
(ken-test
"opacity: foreign value rejected by predicate"
(let
((env (kernel-standard-env)))
(ken-eval-in "($define! tA (make-encapsulation-type))" env)
(ken-eval-in "($define! tB (make-encapsulation-type))" env)
(ken-eval-in "($define! encA (car tA))" env)
(ken-eval-in "($define! predB (car (cdr tB)))" env)
(ken-eval-in "(predB (encA 42))" env))
false)
(ken-test
"opacity: decap rejects foreign value"
(let
((env (kernel-standard-env)))
(ken-eval-in "($define! tA (make-encapsulation-type))" env)
(ken-eval-in "($define! tB (make-encapsulation-type))" env)
(ken-eval-in "($define! encA (car tA))" env)
(ken-eval-in "($define! decapB (car (cdr (cdr tB))))" env)
(guard (e (true :raised)) (ken-eval-in "(decapB (encA 42))" env)))
:raised)
(ken-test
"opacity: decap rejects raw value"
(guard
(e (true :raised))
(ken-eval-in "(decap 42)" (ken-make-encap-env)))
:raised)
;; ── promise: classic Kernel encapsulation use case ──────────────
;; A "promise" wraps a thunk to compute on demand and memoises the
;; first result. Built entirely with the standard encap idiom.
(ken-test
"promise: force returns thunk result"
(let
((env (kernel-standard-env)))
(ken-eval-in
"($sequence\n ($define! ptriple (make-encapsulation-type))\n ($define! make-promise (car ptriple))\n ($define! promise? (car (cdr ptriple)))\n ($define! decode-promise (car (cdr (cdr ptriple))))\n ($define! force ($lambda (p) ((decode-promise p))))\n ($define! delay ($lambda (thunk) (make-promise thunk)))\n (force (delay ($lambda () (+ 19 23)))))"
env))
42)
(ken-test
"promise: promise? recognises its own type"
(let
((env (kernel-standard-env)))
(ken-eval-in
"($sequence\n ($define! ptriple (make-encapsulation-type))\n ($define! make-promise (car ptriple))\n ($define! promise? (car (cdr ptriple)))\n (promise? (make-promise ($lambda () 42))))"
env))
true)
(ken-test
"promise: promise? false on plain value"
(let
((env (kernel-standard-env)))
(ken-eval-in
"($sequence\n ($define! ptriple (make-encapsulation-type))\n ($define! promise? (car (cdr ptriple)))\n (promise? 99))"
env))
false)
;; ── independent families don't leak ─────────────────────────────
(ken-test
"two families: distinct identity"
(let
((env (kernel-standard-env)))
(ken-eval-in
"($sequence\n ($define! t1 (make-encapsulation-type))\n ($define! t2 (make-encapsulation-type))\n ($define! enc1 (car t1))\n ($define! pred2 (car (cdr t2)))\n (pred2 (enc1 ($quote stuff))))"
env))
false)
(ken-test
"same family: re-bound shares identity"
(let
((env (kernel-standard-env)))
(ken-eval-in
"($sequence\n ($define! t (make-encapsulation-type))\n ($define! e (car t))\n ($define! p (car (cdr t)))\n ($define! d (car (cdr (cdr t))))\n (list (p (e 7)) (d (e 7))))"
env))
(list true 7))
(define ken-tests-run! (fn () {:total (+ ken-test-pass ken-test-fail) :passed ken-test-pass :failed ken-test-fail :fails ken-test-fails}))

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@@ -1,270 +0,0 @@
;; lib/kernel/tests/eval.sx — exercises lib/kernel/eval.sx.
;;
;; Phase 2 covers literal evaluation, symbol lookup, and combiner
;; dispatch (operative vs applicative). Standard-environment operatives
;; ($if, $define!, $lambda, …) arrive in Phase 4, so tests build a
;; minimal env on the fly and verify the dispatch contract directly.
(define ke-test-pass 0)
(define ke-test-fail 0)
(define ke-test-fails (list))
(define
ke-test
(fn
(name actual expected)
(if
(= actual expected)
(set! ke-test-pass (+ ke-test-pass 1))
(begin
(set! ke-test-fail (+ ke-test-fail 1))
(append! ke-test-fails {:name name :actual actual :expected expected})))))
;; ── helpers ──────────────────────────────────────────────────────
(define ke-eval-src (fn (src env) (kernel-eval (kernel-parse src) env)))
(define
ke-make-test-env
(fn
()
(let
((env (kernel-make-env)))
(kernel-env-bind!
env
"+"
(kernel-make-primitive-applicative
(fn (args) (+ (first args) (nth args 1)))))
(kernel-env-bind!
env
"list"
(kernel-make-primitive-applicative (fn (args) args)))
(kernel-env-bind!
env
"$quote"
(kernel-make-primitive-operative (fn (args dyn-env) (first args))))
(kernel-env-bind!
env
"$if"
(kernel-make-primitive-operative
(fn
(args dyn-env)
(if
(kernel-eval (first args) dyn-env)
(kernel-eval (nth args 1) dyn-env)
(kernel-eval (nth args 2) dyn-env)))))
env)))
;; ── literal evaluation ───────────────────────────────────────────
(ke-test "lit: number" (ke-eval-src "42" (kernel-make-env)) 42)
(ke-test "lit: zero" (ke-eval-src "0" (kernel-make-env)) 0)
(ke-test "lit: float" (ke-eval-src "3.14" (kernel-make-env)) 3.14)
(ke-test "lit: true" (ke-eval-src "#t" (kernel-make-env)) true)
(ke-test "lit: false" (ke-eval-src "#f" (kernel-make-env)) false)
(ke-test "lit: string" (ke-eval-src "\"hello\"" (kernel-make-env)) "hello")
(ke-test "lit: empty list" (ke-eval-src "()" (kernel-make-env)) (list))
;; ── symbol lookup ────────────────────────────────────────────────
(ke-test
"sym: bound to number"
(let
((env (kernel-make-env)))
(kernel-env-bind! env "x" 100)
(ke-eval-src "x" env))
100)
(ke-test
"sym: bound to string"
(let
((env (kernel-make-env)))
(kernel-env-bind! env "name" "kernel")
(ke-eval-src "name" env))
"kernel")
(ke-test
"sym: parent-chain lookup"
(let
((p (kernel-make-env)))
(kernel-env-bind! p "outer" 1)
(let
((c (kernel-extend-env p)))
(kernel-env-bind! c "inner" 2)
(+ (ke-eval-src "outer" c) (ke-eval-src "inner" c))))
3)
(ke-test
"sym: child shadows parent"
(let
((p (kernel-make-env)))
(kernel-env-bind! p "x" 1)
(let
((c (kernel-extend-env p)))
(kernel-env-bind! c "x" 2)
(ke-eval-src "x" c)))
2)
(ke-test
"env-has?: present"
(let
((env (kernel-make-env)))
(kernel-env-bind! env "x" 1)
(kernel-env-has? env "x"))
true)
(ke-test
"env-has?: missing"
(kernel-env-has? (kernel-make-env) "nope")
false)
;; ── tagged-value predicates ─────────────────────────────────────
(ke-test
"tag: operative?"
(kernel-operative? (kernel-make-primitive-operative (fn (a e) nil)))
true)
(ke-test
"tag: applicative?"
(kernel-applicative? (kernel-make-primitive-applicative (fn (a) nil)))
true)
(ke-test
"tag: combiner? operative"
(kernel-combiner? (kernel-make-primitive-operative (fn (a e) nil)))
true)
(ke-test
"tag: combiner? applicative"
(kernel-combiner? (kernel-make-primitive-applicative (fn (a) nil)))
true)
(ke-test "tag: combiner? number" (kernel-combiner? 42) false)
(ke-test "tag: number is not operative" (kernel-operative? 42) false)
;; ── wrap / unwrap ────────────────────────────────────────────────
(ke-test
"wrap+unwrap roundtrip"
(let
((op (kernel-make-primitive-operative (fn (a e) :sentinel))))
(= (kernel-unwrap (kernel-wrap op)) op))
true)
(ke-test
"wrap produces applicative"
(kernel-applicative?
(kernel-wrap (kernel-make-primitive-operative (fn (a e) nil))))
true)
(ke-test
"unwrap of primitive-applicative is operative"
(kernel-operative?
(kernel-unwrap (kernel-make-primitive-applicative (fn (a) nil))))
true)
;; ── combiner dispatch — applicatives evaluate their args ─────────
(ke-test
"applicative: simple call"
(ke-eval-src "(+ 2 3)" (ke-make-test-env))
5)
(ke-test
"applicative: nested"
(ke-eval-src "(+ (+ 1 2) (+ 3 4))" (ke-make-test-env))
10)
(ke-test
"applicative: receives evaluated args"
(let
((env (ke-make-test-env)))
(kernel-env-bind! env "x" 10)
(kernel-env-bind! env "y" 20)
(ke-eval-src "(+ x y)" env))
30)
(ke-test
"applicative: list builds an SX list of values"
(let
((env (ke-make-test-env)))
(kernel-env-bind! env "a" 1)
(kernel-env-bind! env "b" 2)
(ke-eval-src "(list a b 99)" env))
(list 1 2 99))
;; ── combiner dispatch — operatives DO NOT evaluate their args ───
(ke-test
"operative: $quote returns symbol unevaluated"
(ke-eval-src "($quote foo)" (ke-make-test-env))
"foo")
(ke-test
"operative: $quote returns list unevaluated"
(ke-eval-src "($quote (+ 1 2))" (ke-make-test-env))
(list "+" 1 2))
(ke-test
"operative: $if true branch"
(ke-eval-src "($if #t 1 2)" (ke-make-test-env))
1)
(ke-test
"operative: $if false branch"
(ke-eval-src "($if #f 1 2)" (ke-make-test-env))
2)
(ke-test
"operative: $if doesn't eval untaken branch"
(ke-eval-src "($if #t 99 unbound)" (ke-make-test-env))
99)
(ke-test
"operative: $if takes dynamic env for branches"
(let
((env (ke-make-test-env)))
(kernel-env-bind! env "x" 7)
(ke-eval-src "($if #t x 0)" env))
7)
;; ── operative built ON-THE-FLY can inspect raw expressions ──────
(ke-test
"operative: sees raw symbol head"
(let
((env (kernel-make-env)))
(kernel-env-bind!
env
"head"
(kernel-make-primitive-operative (fn (args dyn-env) (first args))))
(ke-eval-src "(head (+ 1 2))" env))
(list "+" 1 2))
(ke-test
"operative: sees dynamic env"
(let
((env (kernel-make-env)))
(kernel-env-bind! env "x" 999)
(kernel-env-bind!
env
"$probe"
(kernel-make-primitive-operative
(fn (args dyn-env) (kernel-env-lookup dyn-env "x"))))
(ke-eval-src "($probe ignored)" env))
999)
;; ── error cases ──────────────────────────────────────────────────
(ke-test
"error: unbound symbol"
(guard
(e (true :raised))
(kernel-eval (kernel-parse "nope") (kernel-make-env)))
:raised)
(ke-test
"error: combine non-combiner"
(guard
(e (true :raised))
(let
((env (kernel-make-env)))
(kernel-env-bind! env "x" 42)
(kernel-eval (kernel-parse "(x 1)") env)))
:raised)
(define ke-tests-run! (fn () {:total (+ ke-test-pass ke-test-fail) :passed ke-test-pass :failed ke-test-fail :fails ke-test-fails}))

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@@ -1,220 +0,0 @@
;; lib/kernel/tests/hygiene.sx — exercises Phase 6 hygiene helpers.
;;
;; Kernel-on-SX is hygienic by default: $vau/$lambda close over their
;; static env, and bind their formals (plus any $define!s in the body)
;; in a CHILD env. The caller's env is only mutated when user code
;; explicitly threads the env-param through `eval` or `$define-in!`.
;;
;; These tests verify the property, plus the Phase 6 helpers ($let and
;; $define-in!). Shutt's full scope-set hygiene (lifted symbols with
;; provenance markers) is research-grade and is NOT implemented — see
;; the plan's reflective-API notes for the proposed approach.
(define kh-test-pass 0)
(define kh-test-fail 0)
(define kh-test-fails (list))
(define
kh-test
(fn
(name actual expected)
(if
(= actual expected)
(set! kh-test-pass (+ kh-test-pass 1))
(begin
(set! kh-test-fail (+ kh-test-fail 1))
(append! kh-test-fails {:name name :actual actual :expected expected})))))
(define kh-eval-in (fn (src env) (kernel-eval (kernel-parse src) env)))
;; ── Default hygiene: $define! inside operative body stays local ─
(kh-test
"hygiene: vau body $define! doesn't escape"
(let
((env (kernel-standard-env)))
(kh-eval-in "($define! x 1)" env)
(kh-eval-in
"($define! my-op ($vau () _ ($sequence ($define! x 999) x)))"
env)
(kh-eval-in "(my-op)" env)
(kh-eval-in "x" env))
1)
(kh-test
"hygiene: vau body $define! visible inside body"
(let
((env (kernel-standard-env)))
(kh-eval-in "($define! x 1)" env)
(kh-eval-in
"($define! my-op ($vau () _ ($sequence ($define! x 999) x)))"
env)
(kh-eval-in "(my-op)" env))
999)
(kh-test
"hygiene: lambda body $define! doesn't escape"
(let
((env (kernel-standard-env)))
(kh-eval-in "($define! y 50)" env)
(kh-eval-in "($define! f ($lambda () ($sequence ($define! y 7) y)))" env)
(kh-eval-in "(f)" env)
(kh-eval-in "y" env))
50)
(kh-test
"hygiene: caller's binding visible inside operative"
(let
((env (kernel-standard-env)))
(kh-eval-in "($define! caller-x 88)" env)
(kh-eval-in "($define! my-op ($vau () _ caller-x))" env)
(kh-eval-in "(my-op)" env))
88)
;; ── $let — proper hygienic scoping ──────────────────────────────
(kh-test
"let: returns body value"
(kh-eval-in "($let ((x 5)) (+ x 1))" (kernel-standard-env))
6)
(kh-test
"let: multiple bindings"
(kh-eval-in "($let ((x 3) (y 4)) (+ x y))" (kernel-standard-env))
7)
(kh-test
"let: bindings shadow outer"
(let
((env (kernel-standard-env)))
(kh-eval-in "($define! x 1)" env)
(kh-eval-in "($let ((x 99)) x)" env))
99)
(kh-test
"let: bindings don't leak after"
(let
((env (kernel-standard-env)))
(kh-eval-in "($define! x 1)" env)
(kh-eval-in "($let ((x 99)) x)" env)
(kh-eval-in "x" env))
1)
(kh-test
"let: parallel — RHS sees outer, not inner"
(let
((env (kernel-standard-env)))
(kh-eval-in "($define! x 1)" env)
(kh-eval-in "($let ((x 10) (y x)) y)" env))
1)
(kh-test
"let: nested"
(kh-eval-in "($let ((x 1)) ($let ((y 2)) (+ x y)))" (kernel-standard-env))
3)
(kh-test
"let: error on malformed binding"
(guard
(e (true :raised))
(kh-eval-in "($let ((x)) x)" (kernel-standard-env)))
:raised)
(kh-test
"let: error on non-symbol name"
(guard
(e (true :raised))
(kh-eval-in "($let ((1 2)) 1)" (kernel-standard-env)))
:raised)
;; ── $define-in! — explicit env targeting ────────────────────────
(kh-test
"define-in!: binds in chosen env, not dyn-env"
(let
((env (kernel-standard-env)))
(kh-eval-in "($define! sandbox (make-environment))" env)
(kh-eval-in "($define-in! sandbox z 77)" env)
(kernel-env-has? (kh-eval-in "sandbox" env) "z"))
true)
(kh-test
"define-in!: doesn't pollute caller"
(let
((env (kernel-standard-env)))
(kh-eval-in "($define! sandbox (make-environment))" env)
(kh-eval-in "($define-in! sandbox z 77)" env)
(kernel-env-has? env "z"))
false)
(kh-test
"define-in!: error on non-env target"
(guard
(e (true :raised))
(let
((env (kernel-standard-env)))
(kh-eval-in "($define-in! 42 x 1)" env)))
:raised)
;; ── Closure does NOT see post-definition caller binds ───────────
;; The classic "lexical scope wins over dynamic" test.
(kh-test
"lexical: closure sees its own static env"
(let
((env (kernel-standard-env)))
(kh-eval-in "($define! x 1)" env)
(kh-eval-in "($define! get-x ($lambda () x))" env)
(kh-eval-in "($define! x 999)" env)
(kh-eval-in "(get-x)" env))
999)
(kh-test
"lexical: $let-bound name invisible outside"
(guard
(e (true :raised))
(let
((env (kernel-standard-env)))
(kh-eval-in "($let ((private 42)) private)" env)
(kh-eval-in "private" env)))
:raised)
;; ── Operative + $let: hygiene compose ───────────────────────────
(kh-test
"let-inside-vau: temp doesn't escape body"
(let
((env (kernel-standard-env)))
(kh-eval-in "($define! x 1)" env)
(kh-eval-in "($define! op ($vau () _ ($let ((x 5)) x)))" env)
(kh-eval-in "(op)" env)
(kh-eval-in "x" env))
1)
;; ── $let* — sequential let ──────────────────────────────────────
(kh-test "let*: empty bindings"
(kh-eval-in "($let* () 42)" (kernel-standard-env)) 42)
(kh-test "let*: single binding"
(kh-eval-in "($let* ((x 5)) (+ x 1))" (kernel-standard-env)) 6)
(kh-test "let*: later sees earlier"
(kh-eval-in "($let* ((x 1) (y (+ x 1)) (z (+ y 1))) z)"
(kernel-standard-env)) 3)
(kh-test "let*: bindings don't leak after"
(let ((env (kernel-standard-env)))
(kh-eval-in "($define! x 1)" env)
(kh-eval-in "($let* ((x 99) (y (+ x 1))) y)" env)
(kh-eval-in "x" env)) 1)
(kh-test "let*: same-name later binding shadows earlier"
(kh-eval-in "($let* ((x 1) (x 2)) x)" (kernel-standard-env)) 2)
(kh-test "let*: multi-expression body"
(kh-eval-in "($let* ((x 5)) ($define! double (+ x x)) double)"
(kernel-standard-env)) 10)
(kh-test "let*: error on malformed binding"
(guard (e (true :raised))
(kh-eval-in "($let* ((x)) x)" (kernel-standard-env)))
:raised)
(kh-test "let: multi-body"
(kh-eval-in "($let ((x 5)) ($define! tmp (+ x 1)) tmp)"
(kernel-standard-env)) 6)
(define kh-tests-run! (fn () {:total (+ kh-test-pass kh-test-fail) :passed kh-test-pass :failed kh-test-fail :fails kh-test-fails}))

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@@ -1,162 +0,0 @@
;; lib/kernel/tests/metacircular.sx — Kernel-in-Kernel demo.
;;
;; Demonstrates reflective completeness: a Kernel program implements
;; a recognisable subset of Kernel's own evaluation rules and produces
;; matching values for a battery of test programs.
;;
;; This is a SHALLOW metacircular: it dispatches on expression shape
;; itself (numbers, booleans, lists, symbols), recursively meta-evals
;; each argument of an applicative call, and delegates only to the
;; host evaluator for the leaf cases (operatives, symbol lookup). The
;; point is to show that env-as-value, first-class operatives, and
;; first-class evaluators all line up — enough so a Kernel program
;; can itself reason about Kernel programs.
(define kmc-test-pass 0)
(define kmc-test-fail 0)
(define kmc-test-fails (list))
(define
kmc-test
(fn
(name actual expected)
(if
(= actual expected)
(set! kmc-test-pass (+ kmc-test-pass 1))
(begin
(set! kmc-test-fail (+ kmc-test-fail 1))
(append! kmc-test-fails {:name name :actual actual :expected expected})))))
;; Build a Kernel env with m-eval and m-apply defined. The two refer
;; to each other and to standard primitives, so we use the standard
;; env as the static-env for both.
(define
kmc-make-env
(fn
()
(let
((env (kernel-standard-env)))
(kernel-eval
(kernel-parse
"($define! m-eval\n ($lambda (expr env)\n ($cond\n ((number? expr) expr)\n ((boolean? expr) expr)\n ((null? expr) expr)\n ((symbol? expr) (eval expr env))\n ((list? expr)\n ($let ((head-val (m-eval (car expr) env)))\n ($cond\n ((applicative? head-val)\n (apply head-val\n (map ($lambda (a) (m-eval a env)) (cdr expr))))\n (else (eval expr env)))))\n (else expr))))")
env)
env)))
(define
kmc-eval
(fn
(src)
(let
((env (kmc-make-env)))
(kernel-eval
(kernel-parse
(str "(m-eval (quote " src ") (get-current-environment))"))
env))))
;; ── literals self-evaluate via m-eval ──────────────────────────
(kmc-test
"m-eval: integer literal"
(kernel-eval
(kernel-parse "(m-eval 42 (get-current-environment))")
(kmc-make-env))
42)
(kmc-test
"m-eval: boolean true"
(kernel-eval
(kernel-parse "(m-eval #t (get-current-environment))")
(kmc-make-env))
true)
(kmc-test
"m-eval: boolean false"
(kernel-eval
(kernel-parse "(m-eval #f (get-current-environment))")
(kmc-make-env))
false)
(kmc-test
"m-eval: empty list"
(kernel-eval
(kernel-parse "(m-eval () (get-current-environment))")
(kmc-make-env))
(list))
;; ── symbol lookup goes through env ─────────────────────────────
(kmc-test
"m-eval: symbol lookup"
(let
((env (kmc-make-env)))
(kernel-eval (kernel-parse "($define! shared-x 99)") env)
(kernel-eval
(kernel-parse "(m-eval ($quote shared-x) (get-current-environment))")
env))
99)
;; ── applicative calls are dispatched by m-eval recursively ─────
(kmc-test
"m-eval: addition"
(kernel-eval
(kernel-parse "(m-eval ($quote (+ 1 2)) (get-current-environment))")
(kmc-make-env))
3)
(kmc-test
"m-eval: nested arithmetic"
(kernel-eval
(kernel-parse
"(m-eval ($quote (+ (* 2 3) (- 10 4))) (get-current-environment))")
(kmc-make-env))
12)
(kmc-test
"m-eval: variadic +"
(kernel-eval
(kernel-parse "(m-eval ($quote (+ 1 2 3 4 5)) (get-current-environment))")
(kmc-make-env))
15)
(kmc-test
"m-eval: list construction"
(kernel-eval
(kernel-parse "(m-eval ($quote (list 1 2 3)) (get-current-environment))")
(kmc-make-env))
(list 1 2 3))
(kmc-test "m-eval: cons reverse-style"
(kernel-eval
(kernel-parse "(m-eval ($quote (cons 0 (list 1 2))) (get-current-environment))")
(kmc-make-env)) (list 0 1 2))
(kmc-test "m-eval: nested apply"
(kernel-eval
(kernel-parse "(m-eval ($quote (apply + (list 10 20 30))) (get-current-environment))")
(kmc-make-env)) 60)
;; ── operatives delegate to host eval (transparently for the caller) ─
(kmc-test
"m-eval: $if true branch (via delegation)"
(kernel-eval
(kernel-parse "(m-eval ($quote ($if #t 1 2)) (get-current-environment))")
(kmc-make-env))
1)
(kmc-test
"m-eval: $if false branch"
(kernel-eval
(kernel-parse "(m-eval ($quote ($if #f 1 2)) (get-current-environment))")
(kmc-make-env))
2)
;; ── m-eval can call a user-defined lambda ──────────────────────
(kmc-test
"m-eval: user lambda call"
(let
((env (kmc-make-env)))
(kernel-eval (kernel-parse "($define! sq ($lambda (x) (* x x)))") env)
(kernel-eval
(kernel-parse "(m-eval ($quote (sq 7)) (get-current-environment))")
env))
49)
(define kmc-tests-run! (fn () {:total (+ kmc-test-pass kmc-test-fail) :passed kmc-test-pass :failed kmc-test-fail :fails kmc-test-fails}))

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@@ -1,158 +0,0 @@
;; lib/kernel/tests/parse.sx — exercises lib/kernel/parser.sx.
(define knl-test-pass 0)
(define knl-test-fail 0)
(define knl-test-fails (list))
(define
knl-test
(fn
(name actual expected)
(if
(= actual expected)
(set! knl-test-pass (+ knl-test-pass 1))
(begin
(set! knl-test-fail (+ knl-test-fail 1))
(append! knl-test-fails {:name name :actual actual :expected expected})))))
;; ── atoms: numbers ────────────────────────────────────────────────
(knl-test "num: integer" (kernel-parse "42") 42)
(knl-test "num: zero" (kernel-parse "0") 0)
(knl-test "num: negative integer" (kernel-parse "-7") -7)
(knl-test "num: positive sign" (kernel-parse "+5") 5)
(knl-test "num: float" (kernel-parse "3.14") 3.14)
(knl-test "num: negative float" (kernel-parse "-2.5") -2.5)
(knl-test "num: leading dot" (kernel-parse ".5") 0.5)
(knl-test "num: exponent" (kernel-parse "1e3") 1000)
(knl-test "num: exponent with sign" (kernel-parse "2.5e-1") 0.25)
(knl-test "num: capital E exponent" (kernel-parse "1E2") 100)
;; ── atoms: booleans ───────────────────────────────────────────────
(knl-test "bool: true" (kernel-parse "#t") true)
(knl-test "bool: false" (kernel-parse "#f") false)
;; ── atoms: empty list (Kernel nil) ────────────────────────────────
(knl-test "nil: ()" (kernel-parse "()") (list))
(knl-test "nil: (= () (list))" (= (kernel-parse "()") (list)) true)
;; ── atoms: symbols ────────────────────────────────────────────────
(knl-test "sym: word" (kernel-parse "foo") "foo")
(knl-test "sym: hyphenated" (kernel-parse "foo-bar") "foo-bar")
(knl-test "sym: dollar-bang" (kernel-parse "$define!") "$define!")
(knl-test "sym: question" (kernel-parse "null?") "null?")
(knl-test "sym: lt-eq" (kernel-parse "<=") "<=")
(knl-test "sym: bare plus" (kernel-parse "+") "+")
(knl-test "sym: bare minus" (kernel-parse "-") "-")
(knl-test "sym: plus-letter" (kernel-parse "+a") "+a")
(knl-test "sym: arrow" (kernel-parse "->") "->")
(knl-test "sym: dot-prefixed" (kernel-parse ".foo") ".foo")
;; ── atoms: strings ────────────────────────────────────────────────
(knl-test "str: empty" (kernel-string-value (kernel-parse "\"\"")) "")
(knl-test
"str: hello"
(kernel-string-value (kernel-parse "\"hello\""))
"hello")
(knl-test "str: predicate" (kernel-string? (kernel-parse "\"x\"")) true)
(knl-test "str: not symbol" (kernel-string? (kernel-parse "x")) false)
(knl-test
"str: escape newline"
(kernel-string-value (kernel-parse "\"a\\nb\""))
"a\nb")
(knl-test
"str: escape tab"
(kernel-string-value (kernel-parse "\"a\\tb\""))
"a\tb")
(knl-test
"str: escape quote"
(kernel-string-value (kernel-parse "\"a\\\"b\""))
"a\"b")
(knl-test
"str: escape backslash"
(kernel-string-value (kernel-parse "\"a\\\\b\""))
"a\\b")
;; ── lists ─────────────────────────────────────────────────────────
(knl-test "list: flat" (kernel-parse "(a b c)") (list "a" "b" "c"))
(knl-test
"list: nested"
(kernel-parse "(a (b c) d)")
(list "a" (list "b" "c") "d"))
(knl-test
"list: deeply nested"
(kernel-parse "(((x)))")
(list (list (list "x"))))
(knl-test
"list: mixed atoms"
(kernel-parse "(1 #t foo)")
(list 1 true "foo"))
(knl-test
"list: empty inside"
(kernel-parse "(a () b)")
(list "a" (list) "b"))
;; ── whitespace + comments ─────────────────────────────────────────
(knl-test "ws: leading" (kernel-parse " 42") 42)
(knl-test "ws: trailing" (kernel-parse "42 ") 42)
(knl-test "ws: tabs/newlines" (kernel-parse "\n\t 42 \n") 42)
(knl-test "comment: line" (kernel-parse "; nope\n42") 42)
(knl-test "comment: trailing" (kernel-parse "42 ; tail") 42)
(knl-test
"comment: inside list"
(kernel-parse "(a ; mid\n b)")
(list "a" "b"))
;; ── parse-all ─────────────────────────────────────────────────────
(knl-test "all: empty input" (kernel-parse-all "") (list))
(knl-test "all: only whitespace" (kernel-parse-all " ") (list))
(knl-test "all: only comment" (kernel-parse-all "; nope") (list))
(knl-test
"all: three forms"
(kernel-parse-all "1 2 3")
(list 1 2 3))
(knl-test
"all: mixed"
(kernel-parse-all "($if #t 1 2) foo")
(list (list "$if" true 1 2) "foo"))
;; ── classic Kernel programs (smoke) ───────────────────────────────
(knl-test
"klisp: vau form"
(kernel-parse "($vau (x e) e (eval x e))")
(list "$vau" (list "x" "e") "e" (list "eval" "x" "e")))
(knl-test
"klisp: define lambda"
(kernel-parse "($define! sq ($lambda (x) (* x x)))")
(list "$define!" "sq" (list "$lambda" (list "x") (list "*" "x" "x"))))
;; ── round-trip identity for primitive symbols ─────────────────────
(knl-test "identity: $vau" (kernel-parse "$vau") "$vau")
(knl-test "identity: $lambda" (kernel-parse "$lambda") "$lambda")
(knl-test "identity: wrap" (kernel-parse "wrap") "wrap")
(knl-test "identity: unwrap" (kernel-parse "unwrap") "unwrap")
;; ── reader macros ─────────────────────────────────────────────────
(knl-test "reader: 'foo → ($quote foo)"
(kernel-parse "'foo") (list "$quote" "foo"))
(knl-test "reader: '(a b c)"
(kernel-parse "'(a b c)") (list "$quote" (list "a" "b" "c")))
(knl-test "reader: nested quotes"
(kernel-parse "''x")
(list "$quote" (list "$quote" "x")))
(knl-test "reader: ` quasiquote"
(kernel-parse "`x") (list "$quasiquote" "x"))
(knl-test "reader: , unquote"
(kernel-parse ",x") (list "$unquote" "x"))
(knl-test "reader: ,@ unquote-splicing"
(kernel-parse ",@x") (list "$unquote-splicing" "x"))
(knl-test "reader: quasi-mix"
(kernel-parse "`(a ,b ,@c)")
(list "$quasiquote"
(list "a"
(list "$unquote" "b")
(list "$unquote-splicing" "c"))))
(knl-test "reader: quote separates from neighbouring atom"
(kernel-parse "(a 'b c)")
(list "a" (list "$quote" "b") "c"))
(define knl-tests-run! (fn () {:total (+ knl-test-pass knl-test-fail) :passed knl-test-pass :failed knl-test-fail :fails knl-test-fails}))

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@@ -1,445 +0,0 @@
;; lib/kernel/tests/standard.sx — exercises the Kernel standard env.
;;
;; Phase 4 tests verify that the standard env is rich enough to run
;; classic Kernel programs: factorial via recursion, list operations,
;; first-class environment manipulation. Each test starts from a fresh
;; standard env via `(kernel-standard-env)`.
(define ks-test-pass 0)
(define ks-test-fail 0)
(define ks-test-fails (list))
(define
ks-test
(fn
(name actual expected)
(if
(= actual expected)
(set! ks-test-pass (+ ks-test-pass 1))
(begin
(set! ks-test-fail (+ ks-test-fail 1))
(append! ks-test-fails {:name name :actual actual :expected expected})))))
(define
ks-eval
(fn (src) (kernel-eval (kernel-parse src) (kernel-standard-env))))
(define ks-eval-in (fn (src env) (kernel-eval (kernel-parse src) env)))
(define
ks-eval-all
(fn (src env) (kernel-eval-program (kernel-parse-all src) env)))
;; ── $if ──────────────────────────────────────────────────────────
(ks-test "if: true branch" (ks-eval "($if #t 1 2)") 1)
(ks-test "if: false branch" (ks-eval "($if #f 1 2)") 2)
(ks-test "if: predicate"
(ks-eval "($if (<=? 1 2) ($quote yes) ($quote no))") "yes")
(ks-test
"if: untaken branch not evaluated"
(ks-eval "($if #t 42 nope)")
42)
;; ── $define! + arithmetic ───────────────────────────────────────
(ks-test
"define!: returns value"
(let ((env (kernel-standard-env))) (ks-eval-in "($define! x 5)" env))
5)
(ks-test
"define!: bound in env"
(let
((env (kernel-standard-env)))
(ks-eval-in "($define! x 5)" env)
(ks-eval-in "x" env))
5)
(ks-test "arith: +" (ks-eval "(+ 2 3)") 5)
(ks-test "arith: -" (ks-eval "(- 10 4)") 6)
(ks-test "arith: *" (ks-eval "(* 6 7)") 42)
(ks-test "arith: /" (ks-eval "(/ 20 5)") 4)
(ks-test "cmp: < true" (ks-eval "(< 1 2)") true)
(ks-test "cmp: < false" (ks-eval "(< 2 1)") false)
(ks-test "cmp: >=" (ks-eval "(>=? 2 2)") true)
(ks-test "cmp: <=" (ks-eval "(<=? 2 3)") true)
(ks-test "cmp: =" (ks-eval "(=? 7 7)") true)
;; ── $sequence ────────────────────────────────────────────────────
(ks-test "sequence: empty" (ks-eval "($sequence)") nil)
(ks-test "sequence: single" (ks-eval "($sequence 99)") 99)
(ks-test
"sequence: multi-effect"
(let
((env (kernel-standard-env)))
(ks-eval-in "($sequence ($define! a 1) ($define! b 2) (+ a b))" env))
3)
;; ── list primitives ──────────────────────────────────────────────
(ks-test
"list: builds"
(ks-eval "(list 1 2 3)")
(list 1 2 3))
(ks-test "list: empty" (ks-eval "(list)") (list))
(ks-test
"cons: prepend"
(ks-eval "(cons 0 (list 1 2 3))")
(list 0 1 2 3))
(ks-test "car: head" (ks-eval "(car (list 10 20 30))") 10)
(ks-test
"cdr: tail"
(ks-eval "(cdr (list 10 20 30))")
(list 20 30))
(ks-test "length: 3" (ks-eval "(length (list 1 2 3))") 3)
(ks-test "length: 0" (ks-eval "(length (list))") 0)
(ks-test "null?: empty" (ks-eval "(null? (list))") true)
(ks-test "null?: nonempty" (ks-eval "(null? (list 1))") false)
(ks-test "pair?: empty" (ks-eval "(pair? (list))") false)
(ks-test "pair?: nonempty" (ks-eval "(pair? (list 1))") true)
;; ── $quote ───────────────────────────────────────────────────────
(ks-test "quote: symbol" (ks-eval "($quote foo)") "foo")
(ks-test
"quote: list"
(ks-eval "($quote (+ 1 2))")
(list "+" 1 2))
;; ── boolean / not ────────────────────────────────────────────────
(ks-test "not: true" (ks-eval "(not #t)") false)
(ks-test "not: false" (ks-eval "(not #f)") true)
;; ── factorial ────────────────────────────────────────────────────
(ks-test
"factorial: 5!"
(let
((env (kernel-standard-env)))
(ks-eval-in
"($define! factorial ($lambda (n) ($if (<=? n 1) 1 (* n (factorial (- n 1))))))"
env)
(ks-eval-in "(factorial 5)" env))
120)
(ks-test
"factorial: 0! = 1"
(let
((env (kernel-standard-env)))
(ks-eval-in
"($define! factorial ($lambda (n) ($if (<=? n 1) 1 (* n (factorial (- n 1))))))"
env)
(ks-eval-in "(factorial 0)" env))
1)
(ks-test
"factorial: 10!"
(let
((env (kernel-standard-env)))
(ks-eval-in
"($define! factorial ($lambda (n) ($if (<=? n 1) 1 (* n (factorial (- n 1))))))"
env)
(ks-eval-in "(factorial 10)" env))
3628800)
;; ── recursive list operations ────────────────────────────────────
(ks-test
"sum: recursive over list"
(let
((env (kernel-standard-env)))
(ks-eval-in
"($define! sum ($lambda (xs) ($if (null? xs) 0 (+ (car xs) (sum (cdr xs))))))"
env)
(ks-eval-in "(sum (list 1 2 3 4 5))" env))
15)
(ks-test
"len: recursive count"
(let
((env (kernel-standard-env)))
(ks-eval-in
"($define! mylen ($lambda (xs) ($if (null? xs) 0 (+ 1 (mylen (cdr xs))))))"
env)
(ks-eval-in "(mylen (list 1 2 3 4))" env))
4)
(ks-test
"map-add1: build new list"
(let
((env (kernel-standard-env)))
(ks-eval-in
"($define! add1-all ($lambda (xs) ($if (null? xs) (list) (cons (+ 1 (car xs)) (add1-all (cdr xs))))))"
env)
(ks-eval-in "(add1-all (list 10 20 30))" env))
(list 11 21 31))
;; ── eval as a first-class applicative ────────────────────────────
(ks-test
"eval: applies to constructed form"
(ks-eval "(eval (list ($quote +) 2 3) (get-current-environment))")
5)
(ks-test
"eval: with a fresh make-environment"
(guard
(e (true :raised))
(ks-eval "(eval ($quote (+ 1 2)) (make-environment))"))
:raised)
(ks-test
"eval: in extended env sees parent's bindings"
(let
((env (kernel-standard-env)))
(ks-eval-in "($define! shared 7)" env)
(ks-eval-in
"(eval ($quote shared) (make-environment (get-current-environment)))"
env))
7)
;; ── get-current-environment ──────────────────────────────────────
(ks-test
"get-current-environment: returns env"
(kernel-env? (ks-eval "(get-current-environment)"))
true)
(ks-test
"get-current-environment: contains $if"
(let
((env (ks-eval "(get-current-environment)")))
(kernel-env-has? env "$if"))
true)
(ks-test
"make-environment: empty"
(let ((env (ks-eval "(make-environment)"))) (kernel-env-has? env "$if"))
false)
(ks-test
"make-environment: child sees parent"
(let
((env (kernel-standard-env)))
(ks-eval-in "($define! marker 123)" env)
(let
((child (ks-eval-in "(make-environment (get-current-environment))" env)))
(kernel-env-has? child "marker")))
true)
;; ── closures and lexical scope ───────────────────────────────────
(ks-test
"closure: captures binding"
(let
((env (kernel-standard-env)))
(ks-eval-in
"($define! make-adder ($lambda (n) ($lambda (x) (+ x n))))"
env)
(ks-eval-in "($define! add5 (make-adder 5))" env)
(ks-eval-in "(add5 10)" env))
15)
(ks-test
"closure: nested lookups"
(let
((env (kernel-standard-env)))
(ks-eval-in
"($define! curry-add ($lambda (a) ($lambda (b) ($lambda (c) (+ a (+ b c))))))"
env)
(ks-eval-in "(((curry-add 1) 2) 3)" env))
6)
;; ── operative defined in standard env can reach $define! ─────────
(ks-test
"custom: define-via-vau"
(let
((env (kernel-standard-env)))
(ks-eval-in
"($define! $let-it ($vau (name expr) e ($sequence ($define! tmp (eval expr e)) (eval (list ($quote $define!) name (list ($quote $quote) tmp)) e) tmp)))"
env)
(ks-eval-in "($let-it z 77)" env)
(ks-eval-in "z" env))
77)
;; ── quasiquote ──────────────────────────────────────────────────
(ks-test "qq: plain atom" (ks-eval "`hello") "hello")
(ks-test "qq: plain list" (ks-eval "`(a b c)") (list "a" "b" "c"))
(ks-test "qq: unquote splices value"
(let ((env (kernel-standard-env)))
(ks-eval-in "($define! x 42)" env)
(ks-eval-in "`(a ,x b)" env)) (list "a" 42 "b"))
(ks-test "qq: unquote-splicing splices list"
(let ((env (kernel-standard-env)))
(ks-eval-in "($define! xs (list 1 2 3))" env)
(ks-eval-in "`(a ,@xs b)" env)) (list "a" 1 2 3 "b"))
(ks-test "qq: unquote-splicing at end"
(let ((env (kernel-standard-env)))
(ks-eval-in "($define! xs (list 9 8))" env)
(ks-eval-in "`(a b ,@xs)" env)) (list "a" "b" 9 8))
(ks-test "qq: unquote-splicing at start"
(let ((env (kernel-standard-env)))
(ks-eval-in "($define! xs (list 1 2))" env)
(ks-eval-in "`(,@xs c)" env)) (list 1 2 "c"))
(ks-test "qq: nested list with unquote inside"
(let ((env (kernel-standard-env)))
(ks-eval-in "($define! x 5)" env)
(ks-eval-in "`(a (b ,x) c)" env))
(list "a" (list "b" 5) "c"))
(ks-test "qq: error on bare unquote-splicing into non-list"
(let ((env (kernel-standard-env)))
(ks-eval-in "($define! x 42)" env)
(guard (e (true :raised))
(ks-eval-in "`(a ,@x b)" env)))
:raised)
;; ── $cond / $when / $unless ─────────────────────────────────────
(ks-test "cond: first match"
(ks-eval "($cond (#f 1) (#t 2) (#t 3))") 2)
(ks-test "cond: else fallback"
(ks-eval "($cond (#f 1) (else 99))") 99)
(ks-test "cond: no match returns nil"
(ks-eval "($cond (#f 1) (#f 2))") nil)
(ks-test "cond: empty clauses returns nil"
(ks-eval "($cond)") nil)
(ks-test "cond: multi-expr body"
(ks-eval "($cond (#t 1 2 3))") 3)
(ks-test "cond: doesn't evaluate untaken clauses"
;; If the second clause's test were evaluated, the unbound `nope` would error.
(ks-eval "($cond (#t 7) (nope ignored))") 7)
(ks-test "cond: predicate evaluation"
(let ((env (kernel-standard-env)))
(ks-eval-in "($define! n 5)" env)
(ks-eval-in "($cond ((< n 0) ($quote negative)) ((= n 0) ($quote zero)) (else ($quote positive)))" env))
"positive")
(ks-test "when: true runs body"
(ks-eval "($when #t 1 2 3)") 3)
(ks-test "when: false returns nil"
(ks-eval "($when #f 1 2 3)") nil)
(ks-test "when: skips body when false"
(ks-eval "($when #f nope)") nil)
(ks-test "unless: false runs body"
(ks-eval "($unless #f 99)") 99)
(ks-test "unless: true returns nil"
(ks-eval "($unless #t 99)") nil)
(ks-test "unless: skips body when true"
(ks-eval "($unless #t nope)") nil)
;; ── $and? / $or? short-circuit ──────────────────────────────────
(ks-test "and: empty returns true" (ks-eval "($and?)") true)
(ks-test "and: single returns value" (ks-eval "($and? 42)") 42)
(ks-test "and: all true returns last"
(ks-eval "($and? 1 2 3)") 3)
(ks-test "and: first false short-circuits"
(ks-eval "($and? #f nope)") false)
(ks-test "and: false in middle short-circuits"
(ks-eval "($and? 1 #f nope)") false)
(ks-test "or: empty returns false" (ks-eval "($or?)") false)
(ks-test "or: single returns value" (ks-eval "($or? 42)") 42)
(ks-test "or: first truthy short-circuits"
(ks-eval "($or? 99 nope)") 99)
(ks-test "or: all false returns last"
(ks-eval "($or? #f #f #f)") false)
(ks-test "or: middle truthy"
(ks-eval "($or? #f 42 nope)") 42)
;; ── variadic arithmetic ─────────────────────────────────────────
(ks-test "+: zero args = 0" (ks-eval "(+)") 0)
(ks-test "+: one arg = arg" (ks-eval "(+ 7)") 7)
(ks-test "+: two args" (ks-eval "(+ 3 4)") 7)
(ks-test "+: five args" (ks-eval "(+ 1 2 3 4 5)") 15)
(ks-test "*: zero args = 1" (ks-eval "(*)") 1)
(ks-test "*: one arg" (ks-eval "(* 7)") 7)
(ks-test "*: four args" (ks-eval "(* 1 2 3 4)") 24)
(ks-test "-: one arg negates" (ks-eval "(- 10)") -10)
(ks-test "-: two args" (ks-eval "(- 10 3)") 7)
(ks-test "-: four args fold" (ks-eval "(- 100 1 2 3)") 94)
(ks-test "/: two args" (ks-eval "(/ 20 5)") 4)
(ks-test "/: three args fold" (ks-eval "(/ 100 2 5)") 10)
;; ── variadic chained comparison ─────────────────────────────────
(ks-test "<: chained ascending" (ks-eval "(< 1 2 3 4 5)") true)
(ks-test "<: not strict" (ks-eval "(< 1 2 2 3)") false)
(ks-test "<: anti-monotonic" (ks-eval "(< 5 3)") false)
(ks-test ">: chained descending" (ks-eval "(> 5 4 3 2 1)") true)
(ks-test "<=? ascending equals" (ks-eval "(<=? 1 1 2 3 3)") true)
(ks-test "<=? violation" (ks-eval "(<=? 1 2 1)") false)
(ks-test ">=? descending equals" (ks-eval "(>=? 3 3 2 1)") true)
;; ── list combinators ────────────────────────────────────────────
(ks-test "map: square"
(ks-eval "(map ($lambda (x) (* x x)) (list 1 2 3 4))")
(list 1 4 9 16))
(ks-test "map: empty list"
(ks-eval "(map ($lambda (x) x) (list))") (list))
(ks-test "map: identity preserves"
(ks-eval "(map ($lambda (x) x) (list 1 2 3))") (list 1 2 3))
(ks-test "map: with closure over outer"
(let ((env (kernel-standard-env)))
(ks-eval-in "($define! k 10)" env)
(ks-eval-in "(map ($lambda (x) (+ x k)) (list 1 2 3))" env))
(list 11 12 13))
(ks-test "filter: positives"
(ks-eval "(filter ($lambda (x) (< 0 x)) (list -2 -1 0 1 2))")
(list 1 2))
(ks-test "filter: empty result"
(ks-eval "(filter ($lambda (x) #f) (list 1 2 3))") (list))
(ks-test "filter: all match"
(ks-eval "(filter ($lambda (x) #t) (list 1 2 3))") (list 1 2 3))
(ks-test "reduce: sum"
(ks-eval "(reduce ($lambda (a b) (+ a b)) 0 (list 1 2 3 4 5))") 15)
(ks-test "reduce: product"
(ks-eval "(reduce ($lambda (a b) (* a b)) 1 (list 1 2 3 4))") 24)
(ks-test "reduce: empty returns init"
(ks-eval "(reduce ($lambda (a b) (+ a b)) 42 (list))") 42)
(ks-test "reduce: build list"
(ks-eval "(reduce ($lambda (acc x) (cons x acc)) () (list 1 2 3))")
(list 3 2 1))
;; ── apply ────────────────────────────────────────────────────────
(ks-test "apply: + over list"
(ks-eval "(apply + (list 1 2 3 4 5))") 15)
(ks-test "apply: lambda"
(ks-eval "(apply ($lambda (a b c) (* a (+ b c))) (list 2 3 4))") 14)
(ks-test "apply: list identity"
(ks-eval "(apply list (list 1 2 3))") (list 1 2 3))
(ks-test "apply: empty args list"
(ks-eval "(apply + (list))") 0)
(ks-test "apply: single arg list"
(ks-eval "(apply ($lambda (x) (* x 10)) (list 7))") 70)
(ks-test "apply: built via map+apply"
;; (apply + (map ($lambda (x) (* x x)) (list 1 2 3))) → 1+4+9 = 14
(ks-eval
"(apply + (map ($lambda (x) (* x x)) (list 1 2 3)))") 14)
(ks-test "apply: error on non-list args"
(guard (e (true :raised))
(ks-eval "(apply + 5)"))
:raised)
;; ── append / reverse ────────────────────────────────────────────
(ks-test "append: two lists"
(ks-eval "(append (list 1 2) (list 3 4))") (list 1 2 3 4))
(ks-test "append: three lists"
(ks-eval "(append (list 1) (list 2) (list 3))") (list 1 2 3))
(ks-test "append: empty list"
(ks-eval "(append)") (list))
(ks-test "append: one list"
(ks-eval "(append (list 1 2 3))") (list 1 2 3))
(ks-test "append: empty + nonempty"
(ks-eval "(append (list) (list 1 2))") (list 1 2))
(ks-test "append: nonempty + empty"
(ks-eval "(append (list 1 2) (list))") (list 1 2))
(ks-test "append: error on non-list"
(guard (e (true :raised))
(ks-eval "(append (list 1) 5)"))
:raised)
(ks-test "reverse: four elements"
(ks-eval "(reverse (list 1 2 3 4))") (list 4 3 2 1))
(ks-test "reverse: empty"
(ks-eval "(reverse (list))") (list))
(ks-test "reverse: single"
(ks-eval "(reverse (list 99))") (list 99))
(ks-test "reverse: double reverse is identity"
(ks-eval "(reverse (reverse (list 1 2 3)))") (list 1 2 3))
(define ks-tests-run! (fn () {:total (+ ks-test-pass ks-test-fail) :passed ks-test-pass :failed ks-test-fail :fails ks-test-fails}))

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@@ -1,309 +0,0 @@
;; lib/kernel/tests/vau.sx — exercises lib/kernel/runtime.sx.
;;
;; Verifies the Phase 3 promise: user-defined operatives and applicatives
;; constructible from inside the language. Tests build a Kernel
;; base-env, bind a few helper applicatives (+, *, list, =, $if), and
;; run programs that construct and use custom combiners.
(define kv-test-pass 0)
(define kv-test-fail 0)
(define kv-test-fails (list))
(define
kv-test
(fn
(name actual expected)
(if
(= actual expected)
(set! kv-test-pass (+ kv-test-pass 1))
(begin
(set! kv-test-fail (+ kv-test-fail 1))
(append! kv-test-fails {:name name :actual actual :expected expected})))))
(define kv-eval-src (fn (src env) (kernel-eval (kernel-parse src) env)))
(define
kv-make-env
(fn
()
(let
((env (kernel-base-env)))
(kernel-env-bind!
env
"+"
(kernel-make-primitive-applicative
(fn (args) (+ (first args) (nth args 1)))))
(kernel-env-bind!
env
"*"
(kernel-make-primitive-applicative
(fn (args) (* (first args) (nth args 1)))))
(kernel-env-bind!
env
"-"
(kernel-make-primitive-applicative
(fn (args) (- (first args) (nth args 1)))))
(kernel-env-bind!
env
"="
(kernel-make-primitive-applicative
(fn (args) (= (first args) (nth args 1)))))
(kernel-env-bind!
env
"list"
(kernel-make-primitive-applicative (fn (args) args)))
(kernel-env-bind!
env
"cons"
(kernel-make-primitive-applicative
(fn (args) (cons (first args) (nth args 1)))))
(kernel-env-bind!
env
"$quote"
(kernel-make-primitive-operative (fn (args dyn-env) (first args))))
(kernel-env-bind!
env
"$if"
(kernel-make-primitive-operative
(fn
(args dyn-env)
(if
(kernel-eval (first args) dyn-env)
(kernel-eval (nth args 1) dyn-env)
(kernel-eval (nth args 2) dyn-env)))))
env)))
;; ── $vau: builds an operative ───────────────────────────────────
(kv-test
"vau: identity returns first arg unevaluated"
(kv-eval-src "(($vau (a) _ a) hello)" (kv-make-env))
"hello")
(kv-test
"vau: returns args as raw expressions"
(kv-eval-src "(($vau (a b) _ (list a b)) (+ 1 2) (+ 3 4))" (kv-make-env))
(list (list "+" 1 2) (list "+" 3 4)))
(kv-test
"vau: env-param is a kernel env"
(kernel-env? (kv-eval-src "(($vau () e e))" (kv-make-env)))
true)
(kv-test
"vau: returns operative"
(kernel-operative? (kv-eval-src "($vau (x) _ x)" (kv-make-env)))
true)
(kv-test
"vau: returns operative not applicative"
(kernel-applicative? (kv-eval-src "($vau (x) _ x)" (kv-make-env)))
false)
(kv-test
"vau: zero-arg body"
(kv-eval-src "(($vau () _ 42))" (kv-make-env))
42)
(kv-test
"vau: static-env closure captured"
(let
((outer (kv-make-env)))
(kernel-env-bind! outer "captured" 17)
(let
((op (kv-eval-src "($vau () _ captured)" outer))
(caller (kv-make-env)))
(kernel-env-bind! caller "captured" 99)
(kernel-combine op (list) caller)))
17)
(kv-test
"vau: env-param exposes caller's dynamic env"
(let
((outer (kv-make-env)))
(kernel-env-bind! outer "x" 1)
(let
((op (kv-eval-src "($vau () e e)" outer)) (caller (kv-make-env)))
(kernel-env-bind! caller "x" 2)
(let
((e-val (kernel-combine op (list) caller)))
(kernel-env-lookup e-val "x"))))
2)
;; ── $lambda: applicatives evaluate their args ───────────────────
(kv-test
"lambda: identity"
(kv-eval-src "(($lambda (x) x) 42)" (kv-make-env))
42)
(kv-test
"lambda: addition"
(kv-eval-src "(($lambda (x y) (+ x y)) 3 4)" (kv-make-env))
7)
(kv-test
"lambda: args are evaluated before bind"
(kv-eval-src "(($lambda (x) x) (+ 2 3))" (kv-make-env))
5)
(kv-test
"lambda: zero args"
(kv-eval-src "(($lambda () 99))" (kv-make-env))
99)
(kv-test
"lambda: returns applicative"
(kernel-applicative? (kv-eval-src "($lambda (x) x)" (kv-make-env)))
true)
(kv-test
"lambda: returns applicative not operative"
(kernel-operative? (kv-eval-src "($lambda (x) x)" (kv-make-env)))
false)
(kv-test
"lambda: higher-order"
(kv-eval-src "(($lambda (f) (f 10)) ($lambda (x) (+ x 1)))" (kv-make-env))
11)
;; ── wrap / unwrap as user-callable applicatives ─────────────────
(kv-test
"wrap: makes applicative from operative"
(kernel-applicative? (kv-eval-src "(wrap ($vau (x) _ x))" (kv-make-env)))
true)
(kv-test
"wrap: result evaluates its arg"
(kv-eval-src "((wrap ($vau (x) _ x)) (+ 1 2))" (kv-make-env))
3)
(kv-test
"unwrap: extracts operative from applicative"
(kernel-operative? (kv-eval-src "(unwrap ($lambda (x) x))" (kv-make-env)))
true)
(kv-test
"wrap/unwrap roundtrip preserves identity"
(kv-eval-src
"(($lambda (op) (= op (unwrap (wrap op)))) ($vau (x) _ x))"
(kv-make-env))
true)
;; ── operative? / applicative? as user-visible predicates ────────
(kv-test
"operative? on vau result"
(kv-eval-src "(operative? ($vau (x) _ x))" (kv-make-env))
true)
(kv-test
"operative? on lambda result"
(kv-eval-src "(operative? ($lambda (x) x))" (kv-make-env))
false)
(kv-test
"applicative? on lambda result"
(kv-eval-src "(applicative? ($lambda (x) x))" (kv-make-env))
true)
(kv-test
"applicative? on vau result"
(kv-eval-src "(applicative? ($vau (x) _ x))" (kv-make-env))
false)
(kv-test
"operative? on number"
(kv-eval-src "(operative? 42)" (kv-make-env))
false)
;; ── Build BOTH layers from user code ────────────────────────────
;; The headline Phase 3 test: defining an operative on top of an
;; applicative defined on top of a vau.
(kv-test
"custom: applicative + operative compose"
(let
((env (kv-make-env)))
(kernel-env-bind! env "square" (kv-eval-src "($lambda (x) (* x x))" env))
(kv-eval-src "(square 4)" env))
16)
(kv-test "custom: operative captures argument syntax"
;; ($capture x) returns the raw expression `x`, regardless of value.
(let ((env (kv-make-env)))
(kernel-env-bind! env "$capture"
(kv-eval-src "($vau (form) _ form)" env))
(kv-eval-src "($capture (+ 1 2))" env))
(list "+" 1 2))
(kv-test "custom: applicative re-wraps an operative"
;; Build a captured operative, then wrap it into an applicative that
;; evaluates args before re-entry. This exercises wrap+$vau composed.
(let ((env (kv-make-env)))
(kernel-env-bind! env "id-app"
(kv-eval-src "(wrap ($vau (x) _ x))" env))
(kv-eval-src "(id-app (+ 10 20))" env))
30)
;; ── Error cases ──────────────────────────────────────────────────
(kv-test
"vau: rejects non-list formals"
(guard (e (true :raised)) (kv-eval-src "($vau x _ x)" (kv-make-env)))
:raised)
(kv-test
"vau: rejects non-symbol formal"
(guard (e (true :raised)) (kv-eval-src "($vau (1) _ x)" (kv-make-env)))
:raised)
(kv-test
"vau: rejects non-symbol env-param"
(guard (e (true :raised)) (kv-eval-src "($vau (x) 7 x)" (kv-make-env)))
:raised)
(kv-test
"vau: too few args at call site"
(guard
(e (true :raised))
(kv-eval-src "(($vau (x y) _ x) 1)" (kv-make-env)))
:raised)
(kv-test
"vau: too many args at call site"
(guard
(e (true :raised))
(kv-eval-src "(($vau (x) _ x) 1 2)" (kv-make-env)))
:raised)
(kv-test
"wrap: rejects non-operative"
(guard (e (true :raised)) (kv-eval-src "(wrap 42)" (kv-make-env)))
:raised)
(kv-test
"unwrap: rejects non-applicative"
(guard (e (true :raised)) (kv-eval-src "(unwrap 42)" (kv-make-env)))
:raised)
;; ── Multi-expression body (implicit $sequence) ──────────────────
(kv-test "lambda: two body forms — value of last"
(kv-eval-src "(($lambda (n) (+ n 1) (+ n 10)) 5)" (kv-make-env)) 15)
(kv-test "lambda: three body forms"
(kv-eval-src "(($lambda (n) n (+ n 1) (+ n 2)) 10)" (kv-make-env)) 12)
(kv-test "vau: two body forms"
(kv-eval-src "(($vau (a b) _ a (list a b)) 7 8)" (kv-make-env))
(list 7 8))
(kv-test "lambda: $define! in early body visible in later body"
(kv-eval-src
"(($lambda (n) ($define! double (+ n n)) double) 6)"
(kv-make-env)) 12)
(kv-test "lambda: zero-arg multi-body"
(kv-eval-src "(($lambda () 1 2 3))" (kv-make-env)) 3)
(define kv-tests-run! (fn () {:total (+ kv-test-pass kv-test-fail) :passed kv-test-pass :failed kv-test-fail :fails kv-test-fails}))

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@@ -1,590 +0,0 @@
;; lib/minikanren/clpfd.sx — Phase 6: native CLP(FD) on miniKanren.
;;
;; The substitution dict carries an extra reserved key "_fd" that holds a
;; constraint-store record:
;;
;; {:domains {var-name -> sorted-int-list}
;; :constraints (... pending constraint closures ...)}
;;
;; Domains are sorted SX lists of ints (no duplicates).
;; Constraints are functions s -> s-or-nil that propagate / re-check.
;; They are re-fired after every label binding via fd-fire-store.
(define fd-key "_fd")
;; --- domain primitives ---
(define
fd-dom-rev
(fn
(xs acc)
(cond
((empty? xs) acc)
(:else (fd-dom-rev (rest xs) (cons (first xs) acc))))))
(define
fd-dom-insert
(fn
(x desc)
(cond
((empty? desc) (list x))
((= x (first desc)) desc)
((> x (first desc)) (cons x desc))
(:else (cons (first desc) (fd-dom-insert x (rest desc)))))))
(define
fd-dom-sort-dedupe
(fn
(xs acc)
(cond
((empty? xs) (fd-dom-rev acc (list)))
(:else (fd-dom-sort-dedupe (rest xs) (fd-dom-insert (first xs) acc))))))
(define fd-dom-from-list (fn (xs) (fd-dom-sort-dedupe xs (list))))
(define fd-dom-empty? (fn (d) (empty? d)))
(define
fd-dom-singleton?
(fn (d) (and (not (empty? d)) (empty? (rest d)))))
(define fd-dom-min (fn (d) (first d)))
(define
fd-dom-last
(fn
(d)
(cond ((empty? (rest d)) (first d)) (:else (fd-dom-last (rest d))))))
(define fd-dom-max (fn (d) (fd-dom-last d)))
(define fd-dom-member? (fn (x d) (some (fn (y) (= x y)) d)))
(define
fd-dom-intersect
(fn
(a b)
(cond
((empty? a) (list))
((empty? b) (list))
((= (first a) (first b))
(cons (first a) (fd-dom-intersect (rest a) (rest b))))
((< (first a) (first b)) (fd-dom-intersect (rest a) b))
(:else (fd-dom-intersect a (rest b))))))
(define
fd-dom-without
(fn
(x d)
(cond
((empty? d) (list))
((= (first d) x) (rest d))
((> (first d) x) d)
(:else (cons (first d) (fd-dom-without x (rest d)))))))
(define
fd-dom-range
(fn
(lo hi)
(cond
((> lo hi) (list))
(:else (cons lo (fd-dom-range (+ lo 1) hi))))))
;; --- constraint store accessors ---
(define fd-store-empty (fn () {:domains {} :constraints (list)}))
(define
fd-store-of
(fn
(s)
(cond ((has-key? s fd-key) (get s fd-key)) (:else (fd-store-empty)))))
(define fd-domains-of (fn (s) (get (fd-store-of s) :domains)))
(define fd-with-store (fn (s store) (assoc s fd-key store)))
(define
fd-domain-of
(fn
(s var-name)
(let
((doms (fd-domains-of s)))
(cond ((has-key? doms var-name) (get doms var-name)) (:else nil)))))
(define
fd-set-domain
(fn
(s var-name d)
(cond
((fd-dom-empty? d) nil)
(:else
(let
((store (fd-store-of s)))
(let
((doms-prime (assoc (get store :domains) var-name d)))
(let
((store-prime (assoc store :domains doms-prime)))
(fd-with-store s store-prime))))))))
(define
fd-add-constraint
(fn
(s c)
(let
((store (fd-store-of s)))
(let
((cs-prime (cons c (get store :constraints))))
(let
((store-prime (assoc store :constraints cs-prime)))
(fd-with-store s store-prime))))))
(define
fd-fire-list
(fn
(cs s)
(cond
((empty? cs) s)
(:else
(let
((s2 ((first cs) s)))
(cond ((= s2 nil) nil) (:else (fd-fire-list (rest cs) s2))))))))
(define
fd-store-signature
(fn
(s)
(let
((doms (fd-domains-of s)))
(let
((dom-sizes (reduce (fn (acc k) (+ acc (len (get doms k)))) 0 (keys doms))))
(+ dom-sizes (len (keys s)))))))
(define
fd-fire-store
(fn
(s)
(let
((s2 (fd-fire-list (get (fd-store-of s) :constraints) s)))
(cond
((= s2 nil) nil)
((= (fd-store-signature s) (fd-store-signature s2)) s2)
(:else (fd-fire-store s2))))))
;; --- user-facing goals ---
(define
fd-in
(fn
(x dom-list)
(fn
(s)
(let
((new-dom (fd-dom-from-list dom-list)))
(let
((wx (mk-walk x s)))
(cond
((number? wx)
(cond ((fd-dom-member? wx new-dom) (unit s)) (:else mzero)))
((is-var? wx)
(let
((existing (fd-domain-of s (var-name wx))))
(let
((narrowed (cond ((= existing nil) new-dom) (:else (fd-dom-intersect existing new-dom)))))
(let
((s2 (fd-set-domain s (var-name wx) narrowed)))
(cond ((= s2 nil) mzero) (:else (unit s2)))))))
(:else mzero)))))))
;; --- fd-neq ---
(define
fd-neq-prop
(fn
(x y s)
(let
((wx (mk-walk x s)) (wy (mk-walk y s)))
(cond
((and (number? wx) (number? wy))
(cond ((= wx wy) nil) (:else s)))
((and (number? wx) (is-var? wy))
(let
((y-dom (fd-domain-of s (var-name wy))))
(cond
((= y-dom nil) s)
(:else
(fd-set-domain s (var-name wy) (fd-dom-without wx y-dom))))))
((and (number? wy) (is-var? wx))
(let
((x-dom (fd-domain-of s (var-name wx))))
(cond
((= x-dom nil) s)
(:else
(fd-set-domain s (var-name wx) (fd-dom-without wy x-dom))))))
(:else s)))))
(define
fd-neq
(fn
(x y)
(fn
(s)
(let
((c (fn (s-prime) (fd-neq-prop x y s-prime))))
(let
((s2 (fd-add-constraint s c)))
(let
((s3 (c s2)))
(cond ((= s3 nil) mzero) (:else (unit s3)))))))))
;; --- fd-lt ---
(define
fd-lt-prop
(fn
(x y s)
(let
((wx (mk-walk x s)) (wy (mk-walk y s)))
(cond
((and (number? wx) (number? wy))
(cond ((< wx wy) s) (:else nil)))
((and (number? wx) (is-var? wy))
(let
((yd (fd-domain-of s (var-name wy))))
(cond
((= yd nil) s)
(:else
(fd-set-domain
s
(var-name wy)
(filter (fn (v) (> v wx)) yd))))))
((and (is-var? wx) (number? wy))
(let
((xd (fd-domain-of s (var-name wx))))
(cond
((= xd nil) s)
(:else
(fd-set-domain
s
(var-name wx)
(filter (fn (v) (< v wy)) xd))))))
((and (is-var? wx) (is-var? wy))
(let
((xd (fd-domain-of s (var-name wx)))
(yd (fd-domain-of s (var-name wy))))
(cond
((or (= xd nil) (= yd nil)) s)
(:else
(let
((xd-prime (filter (fn (v) (< v (fd-dom-max yd))) xd)))
(let
((s2 (fd-set-domain s (var-name wx) xd-prime)))
(cond
((= s2 nil) nil)
(:else
(let
((yd-prime (filter (fn (v) (> v (fd-dom-min xd-prime))) yd)))
(fd-set-domain s2 (var-name wy) yd-prime))))))))))
(:else s)))))
(define
fd-lt
(fn
(x y)
(fn
(s)
(let
((c (fn (sp) (fd-lt-prop x y sp))))
(let
((s2 (fd-add-constraint s c)))
(let
((s3 (c s2)))
(cond ((= s3 nil) mzero) (:else (unit s3)))))))))
;; --- fd-lte ---
(define
fd-lte-prop
(fn
(x y s)
(let
((wx (mk-walk x s)) (wy (mk-walk y s)))
(cond
((and (number? wx) (number? wy))
(cond ((<= wx wy) s) (:else nil)))
((and (number? wx) (is-var? wy))
(let
((yd (fd-domain-of s (var-name wy))))
(cond
((= yd nil) s)
(:else
(fd-set-domain
s
(var-name wy)
(filter (fn (v) (>= v wx)) yd))))))
((and (is-var? wx) (number? wy))
(let
((xd (fd-domain-of s (var-name wx))))
(cond
((= xd nil) s)
(:else
(fd-set-domain
s
(var-name wx)
(filter (fn (v) (<= v wy)) xd))))))
((and (is-var? wx) (is-var? wy))
(let
((xd (fd-domain-of s (var-name wx)))
(yd (fd-domain-of s (var-name wy))))
(cond
((or (= xd nil) (= yd nil)) s)
(:else
(let
((xd-prime (filter (fn (v) (<= v (fd-dom-max yd))) xd)))
(let
((s2 (fd-set-domain s (var-name wx) xd-prime)))
(cond
((= s2 nil) nil)
(:else
(let
((yd-prime (filter (fn (v) (>= v (fd-dom-min xd-prime))) yd)))
(fd-set-domain s2 (var-name wy) yd-prime))))))))))
(:else s)))))
(define
fd-lte
(fn
(x y)
(fn
(s)
(let
((c (fn (sp) (fd-lte-prop x y sp))))
(let
((s2 (fd-add-constraint s c)))
(let
((s3 (c s2)))
(cond ((= s3 nil) mzero) (:else (unit s3)))))))))
;; --- fd-eq ---
(define
fd-eq-prop
(fn
(x y s)
(let
((wx (mk-walk x s)) (wy (mk-walk y s)))
(cond
((and (number? wx) (number? wy))
(cond ((= wx wy) s) (:else nil)))
((and (number? wx) (is-var? wy))
(let
((yd (fd-domain-of s (var-name wy))))
(cond
((and (not (= yd nil)) (not (fd-dom-member? wx yd))) nil)
(:else
(let
((s2 (mk-unify wy wx s)))
(cond ((= s2 nil) nil) (:else s2)))))))
((and (is-var? wx) (number? wy))
(let
((xd (fd-domain-of s (var-name wx))))
(cond
((and (not (= xd nil)) (not (fd-dom-member? wy xd))) nil)
(:else
(let
((s2 (mk-unify wx wy s)))
(cond ((= s2 nil) nil) (:else s2)))))))
((and (is-var? wx) (is-var? wy))
(let
((xd (fd-domain-of s (var-name wx)))
(yd (fd-domain-of s (var-name wy))))
(cond
((and (= xd nil) (= yd nil))
(let
((s2 (mk-unify wx wy s)))
(cond ((= s2 nil) nil) (:else s2))))
(:else
(let
((shared (cond ((= xd nil) yd) ((= yd nil) xd) (:else (fd-dom-intersect xd yd)))))
(cond
((fd-dom-empty? shared) nil)
(:else
(let
((s2 (fd-set-domain s (var-name wx) shared)))
(cond
((= s2 nil) nil)
(:else
(let
((s3 (fd-set-domain s2 (var-name wy) shared)))
(cond
((= s3 nil) nil)
(:else (mk-unify wx wy s3))))))))))))))
(:else s)))))
(define
fd-eq
(fn
(x y)
(fn
(s)
(let
((c (fn (sp) (fd-eq-prop x y sp))))
(let
((s2 (fd-add-constraint s c)))
(let
((s3 (c s2)))
(cond ((= s3 nil) mzero) (:else (unit s3)))))))))
;; --- labelling ---
(define
fd-try-each-value
(fn
(x dom s)
(cond
((empty? dom) mzero)
(:else
(let
((s2 (mk-unify x (first dom) s)))
(let
((s3 (cond ((= s2 nil) nil) (:else (fd-fire-store s2)))))
(let
((this-stream (cond ((= s3 nil) mzero) (:else (unit s3))))
(rest-stream (fd-try-each-value x (rest dom) s)))
(mk-mplus this-stream rest-stream))))))))
(define
fd-label-one
(fn
(x)
(fn
(s)
(let
((wx (mk-walk x s)))
(cond
((number? wx) (unit s))
((is-var? wx)
(let
((dom (fd-domain-of s (var-name wx))))
(cond
((= dom nil) mzero)
(:else (fd-try-each-value wx dom s)))))
(:else mzero))))))
(define
fd-label
(fn
(vars)
(cond
((empty? vars) succeed)
(:else (mk-conj (fd-label-one (first vars)) (fd-label (rest vars)))))))
;; --- fd-distinct (pairwise distinct via fd-neq) ---
(define
fd-distinct-from-head
(fn
(x others)
(cond
((empty? others) succeed)
(:else
(mk-conj
(fd-neq x (first others))
(fd-distinct-from-head x (rest others)))))))
(define
fd-distinct
(fn
(vars)
(cond
((empty? vars) succeed)
((empty? (rest vars)) succeed)
(:else
(mk-conj
(fd-distinct-from-head (first vars) (rest vars))
(fd-distinct (rest vars)))))))
;; --- fd-plus (x + y = z, ground-cases propagator) ---
(define
fd-bind-or-narrow
(fn
(w target s)
(cond
((number? w) (cond ((= w target) s) (:else nil)))
((is-var? w)
(let
((wd (fd-domain-of s (var-name w))))
(cond
((and (not (= wd nil)) (not (fd-dom-member? target wd))) nil)
(:else
(let
((s2 (mk-unify w target s)))
(cond ((= s2 nil) nil) (:else s2)))))))
(:else nil))))
(define
fd-plus-prop
(fn
(x y z s)
(let
((wx (mk-walk x s)) (wy (mk-walk y s)) (wz (mk-walk z s)))
(cond
((and (number? wx) (number? wy) (number? wz))
(cond ((= (+ wx wy) wz) s) (:else nil)))
((and (number? wx) (number? wy))
(fd-bind-or-narrow wz (+ wx wy) s))
((and (number? wx) (number? wz))
(fd-bind-or-narrow wy (- wz wx) s))
((and (number? wy) (number? wz))
(fd-bind-or-narrow wx (- wz wy) s))
(:else s)))))
(define
fd-plus
(fn
(x y z)
(fn
(s)
(let
((c (fn (sp) (fd-plus-prop x y z sp))))
(let
((s2 (fd-add-constraint s c)))
(let
((s3 (c s2)))
(cond ((= s3 nil) mzero) (:else (unit s3)))))))))
;; --- fd-times (x * y = z, ground-cases propagator) ---
(define
fd-times-prop
(fn
(x y z s)
(let
((wx (mk-walk x s)) (wy (mk-walk y s)) (wz (mk-walk z s)))
(cond
((and (number? wx) (number? wy) (number? wz))
(cond ((= (* wx wy) wz) s) (:else nil)))
((and (number? wx) (number? wy))
(fd-bind-or-narrow wz (* wx wy) s))
((and (number? wx) (number? wz))
(cond
((= wx 0) (cond ((= wz 0) s) (:else nil)))
((not (= (mod wz wx) 0)) nil)
(:else (fd-bind-or-narrow wy (/ wz wx) s))))
((and (number? wy) (number? wz))
(cond
((= wy 0) (cond ((= wz 0) s) (:else nil)))
((not (= (mod wz wy) 0)) nil)
(:else (fd-bind-or-narrow wx (/ wz wy) s))))
(:else s)))))
(define
fd-times
(fn
(x y z)
(fn
(s)
(let
((c (fn (sp) (fd-times-prop x y z sp))))
(let
((s2 (fd-add-constraint s c)))
(let
((s3 (c s2)))
(cond ((= s3 nil) mzero) (:else (unit s3)))))))))

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@@ -1,42 +0,0 @@
;; lib/minikanren/conda.sx — Phase 5 piece A: `conda`, the soft-cut.
;;
;; (conda (g0 g ...) (h0 h ...) ...)
;; — first clause whose head g0 produces ANY answer wins; ALL of g0's
;; answers are then conj'd with the rest of that clause; later
;; clauses are NOT tried.
;; — differs from condu only in not wrapping g0 in onceo: condu
;; commits to the SINGLE first answer, conda lets the head's full
;; answer-set flow into the rest of the clause.
;; (Reasoned Schemer chapter 10; Byrd 5.3.)
(define
conda-try
(fn
(clauses s)
(cond
((empty? clauses) mzero)
(:else
(let
((cl (first clauses)))
(let
((head-goal (first cl)) (rest-goals (rest cl)))
(let
((peek (stream-take 1 (head-goal s))))
(if
(empty? peek)
(conda-try (rest clauses) s)
(mk-bind (head-goal s) (mk-conj-list rest-goals))))))))))
(defmacro
conda
(&rest clauses)
(quasiquote
(fn
(s)
(conda-try
(list
(splice-unquote
(map
(fn (cl) (quasiquote (list (splice-unquote cl))))
clauses)))
s))))

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@@ -1,39 +0,0 @@
;; lib/minikanren/conde.sx — Phase 2 piece C: `conde`, the canonical
;; miniKanren and-or form, with implicit Zzz inverse-eta delay so recursive
;; relations like appendo terminate.
;;
;; (conde (g1a g1b ...) (g2a g2b ...) ...)
;; ≡ (mk-disj (Zzz (mk-conj g1a g1b ...))
;; (Zzz (mk-conj g2a g2b ...)) ...)
;;
;; `Zzz g` wraps a goal expression in (fn (S) (fn () (g S))) so that
;; `g`'s body isn't constructed until the surrounding fn is applied to a
;; substitution AND the returned thunk is forced. This is what gives
;; miniKanren its laziness — recursive goal definitions can be `(conde
;; ... (... (recur ...)))` without infinite descent at construction time.
;;
;; Hygiene: the substitution parameter is gensym'd so that user goal
;; expressions which themselves bind `s` (e.g. `(appendo l s ls)`) keep
;; their lexical `s` and don't accidentally reference the wrapper's
;; substitution. Without gensym, miniKanren relations that follow the
;; common (l s ls) parameter convention are silently miscompiled.
(defmacro
Zzz
(g)
(let
((s-sym (gensym "zzz-s-")))
(quasiquote
(fn ((unquote s-sym)) (fn () ((unquote g) (unquote s-sym)))))))
(defmacro
conde
(&rest clauses)
(quasiquote
(mk-disj
(splice-unquote
(map
(fn
(clause)
(quasiquote (Zzz (mk-conj (splice-unquote clause)))))
clauses)))))

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@@ -1,58 +0,0 @@
;; lib/minikanren/condu.sx — Phase 2 piece D: `condu` and `onceo`.
;;
;; Both are commitment forms (no backtracking into discarded options):
;;
;; (onceo g) — succeeds at most once: takes the first answer
;; stream-take produces from (g s).
;;
;; (condu (g0 g ...) (h0 h ...) ...)
;; — first clause whose head goal succeeds wins; only
;; the first answer of the head is propagated to the
;; rest of that clause; later clauses are not tried.
;; (Reasoned Schemer chapter 10; Byrd 5.4.)
(define
onceo
(fn
(g)
(fn
(s)
(let
((peek (stream-take 1 (g s))))
(if (empty? peek) mzero (unit (first peek)))))))
;; condu-try — runtime walker over a list of clauses (each clause a list of
;; goals). Forces the head with stream-take 1; if head fails, recurse to
;; the next clause; if head succeeds, commits its single answer through
;; the rest of the clause.
(define
condu-try
(fn
(clauses s)
(cond
((empty? clauses) mzero)
(:else
(let
((cl (first clauses)))
(let
((head-goal (first cl)) (rest-goals (rest cl)))
(let
((peek (stream-take 1 (head-goal s))))
(if
(empty? peek)
(condu-try (rest clauses) s)
((mk-conj-list rest-goals) (first peek))))))))))
(defmacro
condu
(&rest clauses)
(quasiquote
(fn
(s)
(condu-try
(list
(splice-unquote
(map
(fn (cl) (quasiquote (list (splice-unquote cl))))
clauses)))
s))))

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@@ -1,25 +0,0 @@
;; lib/minikanren/defrel.sx — Prolog-style defrel macro.
;;
;; (defrel (NAME ARG1 ARG2 ...)
;; (CLAUSE1 ...)
;; (CLAUSE2 ...)
;; ...)
;;
;; expands to
;;
;; (define NAME (fn (ARG1 ARG2 ...) (conde (CLAUSE1 ...) (CLAUSE2 ...))))
;;
;; This puts each clause's goals immediately after the head, mirroring
;; Prolog's `name(Args) :- goals.` shape. Clauses are conde-conjoined
;; goals — `Zzz`-wrapping is automatic via `conde`, so recursive
;; relations terminate on partial answers.
(defmacro
defrel
(head &rest clauses)
(let
((name (first head)) (args (rest head)))
(list
(quote define)
name
(list (quote fn) args (cons (quote conde) clauses)))))

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@@ -1,25 +0,0 @@
;; lib/minikanren/fd.sx — Phase 6 piece A: minimal finite-domain helpers.
;;
;; A full CLP(FD) engine (arc consistency, native integer domains, fd-plus
;; etc.) is Phase 6 proper. For now we expose two small relations layered
;; on the existing list machinery — they're sufficient for permutation
;; puzzles, the N-queens-style core of constraint solving:
;;
;; (ino x dom) — x is a member of dom (alias for membero with the
;; constraint-store-friendly argument order).
;; (all-distincto l) — all elements of l are pairwise distinct.
;;
;; all-distincto uses nafc + membero on the tail — it requires the head
;; element of each recursive step to be ground enough for membero to be
;; finitary, so order matters: prefer (in x dom) goals BEFORE
;; (all-distincto (list x ...)) so values get committed first.
(define ino (fn (x dom) (membero x dom)))
(define
all-distincto
(fn
(l)
(conde
((nullo l))
((fresh (a d) (conso a d l) (nafc (membero a d)) (all-distincto d))))))

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@@ -1,23 +0,0 @@
;; lib/minikanren/fresh.sx — Phase 2 piece B: `fresh` for introducing
;; logic variables inside a goal body.
;;
;; (fresh (x y z) goal1 goal2 ...)
;; ≡ (let ((x (make-var)) (y (make-var)) (z (make-var)))
;; (mk-conj goal1 goal2 ...))
;;
;; A macro rather than a function so user-named vars are real lexical
;; bindings — which is also what miniKanren convention expects.
;; The empty-vars form (fresh () goal ...) is just a goal grouping.
(defmacro
fresh
(vars &rest goals)
(quasiquote
(let
(unquote (map (fn (v) (list v (list (quote make-var)))) vars))
(mk-conj (splice-unquote goals)))))
;; call-fresh — functional alternative for code that builds goals
;; programmatically:
;; ((call-fresh (fn (x) (== x 7))) empty-s) → ({:_.N 7})
(define call-fresh (fn (f) (fn (s) ((f (make-var)) s))))

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@@ -1,58 +0,0 @@
;; lib/minikanren/goals.sx — Phase 2 piece B: core goals.
;;
;; A goal is a function (fn (s) → stream-of-substitutions).
;; Goals built here:
;; succeed — always returns (unit s)
;; fail — always returns mzero
;; == — unifies two terms; succeeds with a singleton, else fails
;; ==-check — opt-in occurs-checked equality
;; conj2 / mk-conj — sequential conjunction of goals
;; disj2 / mk-disj — interleaved disjunction of goals (raw — `conde` adds
;; the implicit-conj-per-clause sugar in a later commit)
(define succeed (fn (s) (unit s)))
(define fail (fn (s) mzero))
(define
==
(fn
(u v)
(fn
(s)
(let ((s2 (mk-unify u v s))) (if (= s2 nil) mzero (unit s2))))))
(define
==-check
(fn
(u v)
(fn
(s)
(let ((s2 (mk-unify-check u v s))) (if (= s2 nil) mzero (unit s2))))))
(define conj2 (fn (g1 g2) (fn (s) (mk-bind (g1 s) g2))))
(define disj2 (fn (g1 g2) (fn (s) (mk-mplus (g1 s) (g2 s)))))
;; Fold goals in a list. (mk-conj-list ()) ≡ succeed; (mk-disj-list ()) ≡ fail.
(define
mk-conj-list
(fn
(gs)
(cond
((empty? gs) succeed)
((empty? (rest gs)) (first gs))
(:else (conj2 (first gs) (mk-conj-list (rest gs)))))))
(define
mk-disj-list
(fn
(gs)
(cond
((empty? gs) fail)
((empty? (rest gs)) (first gs))
(:else (disj2 (first gs) (mk-disj-list (rest gs)))))))
(define mk-conj (fn (&rest gs) (mk-conj-list gs)))
(define mk-disj (fn (&rest gs) (mk-disj-list gs)))

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@@ -1,151 +0,0 @@
;; lib/minikanren/intarith.sx — fast integer arithmetic via project.
;;
;; These are ground-only escapes into host arithmetic. They run at native
;; speed (host ints) but require their arguments to walk to actual numbers
;; — they are not relational the way `pluso` (Peano) is. Use them when
;; the puzzle size makes Peano impractical.
;;
;; Naming: `-i` suffix marks "integer-only" goals.
(define
pluso-i
(fn
(a b c)
(project
(a b)
(if (and (number? a) (number? b)) (== c (+ a b)) fail))))
(define
minuso-i
(fn
(a b c)
(project
(a b)
(if (and (number? a) (number? b)) (== c (- a b)) fail))))
(define
*o-i
(fn
(a b c)
(project
(a b)
(if (and (number? a) (number? b)) (== c (* a b)) fail))))
(define
lto-i
(fn
(a b)
(project
(a b)
(if (and (number? a) (and (number? b) (< a b))) succeed fail))))
(define
lteo-i
(fn
(a b)
(project
(a b)
(if (and (number? a) (and (number? b) (<= a b))) succeed fail))))
(define
neqo-i
(fn
(a b)
(project
(a b)
(if (and (number? a) (and (number? b) (not (= a b)))) succeed fail))))
(define numbero (fn (x) (project (x) (if (number? x) succeed fail))))
(define stringo (fn (x) (project (x) (if (string? x) succeed fail))))
(define symbolo (fn (x) (project (x) (if (symbol? x) succeed fail))))
(define
even-i
(fn (n) (project (n) (if (and (number? n) (even? n)) succeed fail))))
(define
odd-i
(fn (n) (project (n) (if (and (number? n) (odd? n)) succeed fail))))
(define
sortedo
(fn
(l)
(conde
((nullo l))
((fresh (a) (== l (list a))))
((fresh (a b rest mid) (conso a mid l) (conso b rest mid) (lteo-i a b) (sortedo mid))))))
(define
mino
(fn
(l m)
(conde
((fresh (a) (== l (list a)) (== m a)))
((fresh (a d rest-min) (conso a d l) (mino d rest-min) (conde ((lteo-i a rest-min) (== m a)) ((lto-i rest-min a) (== m rest-min))))))))
(define
maxo
(fn
(l m)
(conde
((fresh (a) (== l (list a)) (== m a)))
((fresh (a d rest-max) (conso a d l) (maxo d rest-max) (conde ((lteo-i rest-max a) (== m a)) ((lto-i a rest-max) (== m rest-max))))))))
(define
sumo
(fn
(l total)
(conde
((nullo l) (== total 0))
((fresh (a d rest-sum) (conso a d l) (sumo d rest-sum) (pluso-i a rest-sum total))))))
(define
producto
(fn
(l total)
(conde
((nullo l) (== total 1))
((fresh (a d rest-prod) (conso a d l) (producto d rest-prod) (*o-i a rest-prod total))))))
(define
lengtho-i
(fn
(l n)
(conde
((nullo l) (== n 0))
((fresh (a d n-1) (conso a d l) (lengtho-i d n-1) (pluso-i 1 n-1 n))))))
(define
enumerate-from-i
(fn
(start l result)
(conde
((nullo l) (nullo result))
((fresh (a d r-rest start-prime) (conso a d l) (conso (list start a) r-rest result) (pluso-i 1 start start-prime) (enumerate-from-i start-prime d r-rest))))))
(define enumerate-i (fn (l result) (enumerate-from-i 0 l result)))
(define
counto
(fn
(x l n)
(conde
((nullo l) (== n 0))
((fresh (a d n-rest) (conso a d l) (conde ((== a x) (counto x d n-rest) (pluso-i 1 n-rest n)) ((nafc (== a x)) (counto x d n))))))))
(define
mk-arith-prog
(fn
(start step len)
(cond
((= len 0) (list))
(:else (cons start (mk-arith-prog (+ start step) step (- len 1)))))))
(define
arith-progo
(fn
(start step len result)
(project (start step len) (== result (mk-arith-prog start step len)))))

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@@ -1,76 +0,0 @@
;; lib/minikanren/matche.sx — Phase 5 piece D: pattern matching over terms.
;;
;; (matche TARGET
;; (PATTERN1 g1 g2 ...)
;; (PATTERN2 g1 ...)
;; ...)
;;
;; Pattern grammar:
;; _ wildcard — fresh anonymous var
;; x plain symbol — fresh var, bind by name
;; ATOM literal (number, string, boolean) — must equal
;; :keyword keyword literal — emitted bare (keywords self-evaluate
;; to their string name in SX, so quoting them changes
;; their type from string to keyword)
;; () empty list — must equal
;; (p1 p2 ... pn) list pattern — recurse on each element
;;
;; The macro expands to a `conde` whose clauses are
;; `((fresh (vars-in-pat) (== target pat-expr) body...))`.
;;
;; Repeated symbol names within a pattern produce the same fresh var, so
;; they unify by `==`. Fixed-length list patterns only — head/tail
;; destructuring uses `(fresh (a d) (conso a d target) body)` directly.
;;
;; Note: the macro builds the expansion via `cons` / `list` rather than a
;; quasiquote — quasiquote does not recurse into nested lambda bodies in
;; SX, so `\`(matche-clause (quote ,target) cl)` left literal
;; `(unquote target)` in the output.
(define matche-symbol-var? (fn (s) (symbol? s)))
(define
matche-collect-vars-acc
(fn
(pat acc)
(cond
((matche-symbol-var? pat)
(if (some (fn (s) (= s pat)) acc) acc (append acc (list pat))))
((and (list? pat) (not (empty? pat)))
(reduce (fn (a p) (matche-collect-vars-acc p a)) acc pat))
(:else acc))))
(define
matche-collect-vars
(fn (pat) (matche-collect-vars-acc pat (list))))
(define
matche-pattern->expr
(fn
(pat)
(cond
((matche-symbol-var? pat) pat)
((and (list? pat) (empty? pat)) (list (quote list)))
((list? pat) (cons (quote list) (map matche-pattern->expr pat)))
((keyword? pat) pat)
(:else (list (quote quote) pat)))))
(define
matche-clause
(fn
(target cl)
(let
((pat (first cl)) (body (rest cl)))
(let
((vars (matche-collect-vars pat)))
(let
((pat-expr (matche-pattern->expr pat)))
(list
(cons
(quote fresh)
(cons vars (cons (list (quote ==) target pat-expr) body)))))))))
(defmacro
matche
(target &rest clauses)
(cons (quote conde) (map (fn (cl) (matche-clause target cl)) clauses)))

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;; lib/minikanren/nafc.sx — Phase 5 piece C: negation as finite failure.
;;
;; (nafc g)
;; succeeds (yields the input substitution) if g has zero answers
;; against that substitution; fails (mzero) if g has at least one.
;;
;; Caveat: `nafc` is unsound under the open-world assumption. It only
;; makes sense for goals over fully-ground terms, or with the explicit
;; understanding that adding more facts could flip the answer. Use
;; `(project (...) ...)` to ensure the relevant vars are ground first.
;;
;; Caveat 2: stream-take forces g for at least one answer; if g is
;; infinitely-ground (say, a divergent search over an unbound list),
;; nafc itself will diverge. Standard miniKanren limitation.
(define
nafc
(fn
(g)
(fn
(s)
(let
((peek (stream-take 1 (g s))))
(if (empty? peek) (unit s) mzero)))))

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@@ -1,51 +0,0 @@
;; lib/minikanren/peano.sx — Peano-encoded natural-number relations.
;;
;; Same encoding as `lengtho`: zero is the keyword `:z`; successors are
;; `(:s n)`. So 3 = `(:s (:s (:s :z)))`. `(:z)` and `(:s ...)` are normal
;; SX values that unify positionally — no special primitives needed.
;;
;; Peano arithmetic is the canonical miniKanren way to test addition /
;; multiplication / less-than relationally without an FD constraint store.
;; (CLP(FD) integers come in Phase 6.)
(define zeroo (fn (n) (== n :z)))
(define succ-of (fn (n m) (== m (list :s n))))
(define
pluso
(fn
(a b c)
(conde
((== a :z) (== b c))
((fresh (a-1 c-1) (== a (list :s a-1)) (== c (list :s c-1)) (pluso a-1 b c-1))))))
(define minuso (fn (a b c) (pluso b c a)))
(define lteo (fn (a b) (fresh (k) (pluso a k b))))
(define lto (fn (a b) (fresh (sa) (succ-of a sa) (lteo sa b))))
(define
eveno
(fn
(n)
(conde
((== n :z))
((fresh (m) (== n (list :s (list :s m))) (eveno m))))))
(define
oddo
(fn
(n)
(conde
((== n (list :s :z)))
((fresh (m) (== n (list :s (list :s m))) (oddo m))))))
(define
*o
(fn
(a b c)
(conde
((== a :z) (== c :z))
((fresh (a-1 ab-1) (== a (list :s a-1)) (*o a-1 b ab-1) (pluso b ab-1 c))))))

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@@ -1,25 +0,0 @@
;; lib/minikanren/project.sx — Phase 5 piece B: `project`.
;;
;; (project (x y) g1 g2 ...)
;; — rebinds each named var to (mk-walk* var s) within the body's
;; lexical scope, then runs the conjunction of the body goals on
;; the same substitution. Use to escape into regular SX (arithmetic,
;; string ops, host predicates) when you need a ground value.
;;
;; If any of the projected vars is still unbound at this point, the body
;; sees the raw `(:var NAME)` term — that is intentional and lets you
;; mix project with `(== ground? var)` patterns or with conda guards.
;;
;; Hygiene: substitution parameter is gensym'd so it doesn't capture user
;; vars (`s` is a popular relation parameter name).
(defmacro
project
(vars &rest goals)
(let
((s-sym (gensym "proj-s-")))
(quasiquote
(fn
((unquote s-sym))
((let (unquote (map (fn (v) (list v (list (quote mk-walk*) v s-sym))) vars)) (mk-conj (splice-unquote goals)))
(unquote s-sym))))))

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@@ -1,67 +0,0 @@
;; lib/minikanren/queens.sx — N-queens via ino + all-distincto + project.
;;
;; Encoding: q = (c1 c2 ... cn) where ci is the column of the queen in
;; row i. Each ci ∈ {1..n}; all distinct (no two queens share a column);
;; no two queens on the same diagonal (|ci - cj| ≠ |i - j| for i ≠ j).
;;
;; The diagonal check uses `project` to escape into host arithmetic
;; once both column values are ground.
(define
safe-diag
(fn
(a b dist)
(project (a b) (if (= (abs (- a b)) dist) fail succeed))))
(define
safe-cell-vs-rest
(fn
(c c-row others next-row)
(cond
((empty? others) succeed)
(:else
(mk-conj
(safe-diag c (first others) (- next-row c-row))
(safe-cell-vs-rest c c-row (rest others) (+ next-row 1)))))))
(define
all-cells-safe
(fn
(cols start-row)
(cond
((empty? cols) succeed)
(:else
(mk-conj
(safe-cell-vs-rest
(first cols)
start-row
(rest cols)
(+ start-row 1))
(all-cells-safe (rest cols) (+ start-row 1)))))))
(define
range-1-to-n
(fn
(n)
(cond
((= n 0) (list))
(:else (append (range-1-to-n (- n 1)) (list n))))))
(define
ino-each
(fn
(cols dom)
(cond
((empty? cols) succeed)
(:else (mk-conj (ino (first cols) dom) (ino-each (rest cols) dom))))))
(define
queens-cols
(fn
(cols n)
(let
((dom (range-1-to-n n)))
(mk-conj
(ino-each cols dom)
(all-distincto cols)
(all-cells-safe cols 1)))))

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@@ -1,361 +0,0 @@
;; lib/minikanren/relations.sx — Phase 4 standard relations.
;;
;; Programs use native SX lists as data. Relations decompose lists via the
;; tagged cons-cell shape `(:cons h t)` because SX has no improper pairs;
;; the unifier treats `(:cons h t)` and the native list `(h . t)` as
;; equivalent, and `mk-walk*` flattens cons cells back to flat lists for
;; reification.
;; --- pair / list shape relations ---
(define nullo (fn (l) (== l (list))))
(define pairo (fn (p) (fresh (a d) (== p (mk-cons a d)))))
(define caro (fn (p a) (fresh (d) (== p (mk-cons a d)))))
(define cdro (fn (p d) (fresh (a) (== p (mk-cons a d)))))
(define conso (fn (a d p) (== p (mk-cons a d))))
(define firsto caro)
(define resto cdro)
(define
listo
(fn (l) (conde ((nullo l)) ((fresh (a d) (conso a d l) (listo d))))))
;; --- appendo: the canary ---
;;
;; (appendo l s ls) — `ls` is the concatenation of `l` and `s`.
;; Runs forwards (l, s known → ls), backwards (ls known → all (l, s) pairs),
;; and bidirectionally (mix of bound + unbound).
(define
appendo
(fn
(l s ls)
(conde
((nullo l) (== s ls))
((fresh (a d res) (conso a d l) (conso a res ls) (appendo d s res))))))
;; --- membero ---
;; (membero x l) — x appears (at least once) in l.
(define
appendo3
(fn
(l1 l2 l3 result)
(fresh (l12) (appendo l1 l2 l12) (appendo l12 l3 result))))
(define
partitiono
(fn
(pred l yes no)
(conde
((nullo l) (nullo yes) (nullo no))
((fresh (a d y-rest n-rest) (conso a d l) (conde ((pred a) (conso a y-rest yes) (== no n-rest) (partitiono pred d y-rest n-rest)) ((nafc (pred a)) (== yes y-rest) (conso a n-rest no) (partitiono pred d y-rest n-rest))))))))
(define
foldr-o
(fn
(rel l acc result)
(conde
((nullo l) (== result acc))
((fresh (a d r-rest) (conso a d l) (foldr-o rel d acc r-rest) (rel a r-rest result))))))
(define
foldl-o
(fn
(rel l acc result)
(conde
((nullo l) (== result acc))
((fresh (a d new-acc) (conso a d l) (rel acc a new-acc) (foldl-o rel d new-acc result))))))
(define
flat-mapo
(fn
(rel l result)
(conde
((nullo l) (nullo result))
((fresh (a d a-result rest-result) (conso a d l) (rel a a-result) (flat-mapo rel d rest-result) (appendo a-result rest-result result))))))
(define
nub-o
(fn
(l result)
(conde
((nullo l) (nullo result))
((fresh (a d r-rest) (conso a d l) (conde ((membero a d) (nub-o d result)) ((nafc (membero a d)) (conso a r-rest result) (nub-o d r-rest))))))))
(define
take-while-o
(fn
(pred l result)
(conde
((nullo l) (nullo result))
((fresh (a d r-rest) (conso a d l) (conde ((pred a) (conso a r-rest result) (take-while-o pred d r-rest)) ((nafc (pred a)) (== result (list)))))))))
(define
drop-while-o
(fn
(pred l result)
(conde
((nullo l) (nullo result))
((fresh (a d) (conso a d l) (conde ((pred a) (drop-while-o pred d result)) ((nafc (pred a)) (== result l))))))))
(define
membero
(fn
(x l)
(conde
((fresh (d) (conso x d l)))
((fresh (a d) (conso a d l) (membero x d))))))
(define
not-membero
(fn
(x l)
(conde
((nullo l))
((fresh (a d) (conso a d l) (nafc (== a x)) (not-membero x d))))))
(define
subseto
(fn
(l1 l2)
(conde
((nullo l1))
((fresh (a d) (conso a d l1) (membero a l2) (subseto d l2))))))
(define
reverseo
(fn
(l r)
(conde
((nullo l) (nullo r))
((fresh (a d res-rev) (conso a d l) (reverseo d res-rev) (appendo res-rev (list a) r))))))
(define
rev-acco
(fn
(l acc result)
(conde
((nullo l) (== result acc))
((fresh (a d acc-prime) (conso a d l) (conso a acc acc-prime) (rev-acco d acc-prime result))))))
(define rev-2o (fn (l result) (rev-acco l (list) result)))
(define palindromeo (fn (l) (fresh (rev) (reverseo l rev) (== l rev))))
(define prefixo (fn (p l) (fresh (rest) (appendo p rest l))))
(define suffixo (fn (s l) (fresh (front) (appendo front s l))))
(define
subo
(fn
(s l)
(fresh
(front-and-s back front)
(appendo front-and-s back l)
(appendo front s front-and-s))))
(define
selecto
(fn
(x rest l)
(conde
((conso x rest l))
((fresh (a d r) (conso a d l) (conso a r rest) (selecto x r d))))))
(define
lengtho
(fn
(l n)
(conde
((nullo l) (== n :z))
((fresh (a d n-1) (conso a d l) (== n (list :s n-1)) (lengtho d n-1))))))
(define
inserto
(fn
(a l p)
(conde
((conso a l p))
((fresh (h t pt) (conso h t l) (conso h pt p) (inserto a t pt))))))
(define
permuteo
(fn
(l p)
(conde
((nullo l) (nullo p))
((fresh (a d perm-d) (conso a d l) (permuteo d perm-d) (inserto a perm-d p))))))
(define
flatteno
(fn
(tree flat)
(conde
((nullo tree) (nullo flat))
((pairo tree)
(fresh
(h t hf tf)
(conso h t tree)
(flatteno h hf)
(flatteno t tf)
(appendo hf tf flat)))
((nafc (nullo tree)) (nafc (pairo tree)) (== flat (list tree))))))
(define
rembero
(fn
(x l out)
(conde
((nullo l) (nullo out))
((fresh (a d) (conso a d l) (== a x) (== out d)))
((fresh (a d res) (conso a d l) (nafc (== a x)) (conso a res out) (rembero x d res))))))
(define
removeo-allo
(fn
(x l result)
(conde
((nullo l) (nullo result))
((fresh (a d) (conso a d l) (== a x) (removeo-allo x d result)))
((fresh (a d r-rest) (conso a d l) (nafc (== a x)) (conso a r-rest result) (removeo-allo x d r-rest))))))
(define
assoco
(fn
(key pairs val)
(fresh
(rest)
(conde
((conso (list key val) rest pairs))
((fresh (other) (conso other rest pairs) (assoco key rest val)))))))
(define
nth-o
(fn
(n l elem)
(conde
((== n :z) (fresh (d) (conso elem d l)))
((fresh (n-1 a d) (== n (list :s n-1)) (conso a d l) (nth-o n-1 d elem))))))
(define
samelengtho
(fn
(l1 l2)
(conde
((nullo l1) (nullo l2))
((fresh (a d a-prime d-prime) (conso a d l1) (conso a-prime d-prime l2) (samelengtho d d-prime))))))
(define
mapo
(fn
(rel l1 l2)
(conde
((nullo l1) (nullo l2))
((fresh (a d a-prime d-prime) (conso a d l1) (conso a-prime d-prime l2) (rel a a-prime) (mapo rel d d-prime))))))
(define
iterate-no
(fn
(rel n x result)
(conde
((== n :z) (== result x))
((fresh (n-1 mid) (== n (list :s n-1)) (rel x mid) (iterate-no rel n-1 mid result))))))
(define
pairlisto
(fn
(l1 l2 pairs)
(conde
((nullo l1) (nullo l2) (nullo pairs))
((fresh (a1 d1 a2 d2 d-pairs) (conso a1 d1 l1) (conso a2 d2 l2) (conso (list a1 a2) d-pairs pairs) (pairlisto d1 d2 d-pairs))))))
(define
zip-with-o
(fn
(rel l1 l2 result)
(conde
((nullo l1) (nullo l2) (nullo result))
((fresh (a1 d1 a2 d2 a-result d-result) (conso a1 d1 l1) (conso a2 d2 l2) (rel a1 a2 a-result) (conso a-result d-result result) (zip-with-o rel d1 d2 d-result))))))
(define
swap-firsto
(fn
(l result)
(fresh
(a b rest mid-l mid-r)
(conso a mid-l l)
(conso b rest mid-l)
(conso b mid-r result)
(conso a rest mid-r))))
(define
everyo
(fn
(rel l)
(conde
((nullo l))
((fresh (a d) (conso a d l) (rel a) (everyo rel d))))))
(define
someo
(fn
(rel l)
(conde
((fresh (a d) (conso a d l) (rel a)))
((fresh (a d) (conso a d l) (someo rel d))))))
(define
lasto
(fn
(l x)
(conde
((conso x (list) l))
((fresh (a d) (conso a d l) (lasto d x))))))
(define
init-o
(fn
(l init)
(conde
((fresh (x) (conso x (list) l) (== init (list))))
((fresh (a d d-init) (conso a d l) (conso a d-init init) (init-o d d-init))))))
(define
tako
(fn
(n l prefix)
(conde
((== n :z) (== prefix (list)))
((fresh (n-1 a d p-rest) (== n (list :s n-1)) (conso a d l) (conso a p-rest prefix) (tako n-1 d p-rest))))))
(define
dropo
(fn
(n l suffix)
(conde
((== n :z) (== suffix l))
((fresh (n-1 a d) (== n (list :s n-1)) (conso a d l) (dropo n-1 d suffix))))))
(define
repeato
(fn
(x n result)
(conde
((== n :z) (== result (list)))
((fresh (n-1 r-rest) (== n (list :s n-1)) (conso x r-rest result) (repeato x n-1 r-rest))))))
(define
concato
(fn
(lists result)
(conde
((nullo lists) (nullo result))
((fresh (h t r-rest) (conso h t lists) (appendo h r-rest result) (concato t r-rest))))))

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@@ -1,56 +0,0 @@
;; lib/minikanren/run.sx — Phase 3: drive a goal + reify the query var.
;;
;; reify-name N — make the canonical "_.N" reified symbol.
;; reify-s term rs — walk term in rs, add a mapping from each fresh
;; unbound var to its _.N name (left-to-right order).
;; reify q s — walk* q in s, build reify-s, walk* again to
;; substitute reified names in.
;; run-n n q-name g... — defmacro: bind q-name to a fresh var, conj goals,
;; take ≤ n answers from the stream, reify each
;; through q-name. n = -1 takes all (used by run*).
;; run* — defmacro: (run* q g...) ≡ (run-n -1 q g...)
;; run — defmacro: (run n q g...) ≡ (run-n n q g...)
;; The two-segment form is the standard TRS API.
(define reify-name (fn (n) (make-symbol (str "_." n))))
(define
reify-s
(fn
(term rs)
(let
((w (mk-walk term rs)))
(cond
((is-var? w) (extend (var-name w) (reify-name (len rs)) rs))
((mk-list-pair? w) (reduce (fn (acc a) (reify-s a acc)) rs w))
(:else rs)))))
(define
reify
(fn
(term s)
(let
((w (mk-walk* term s)))
(let ((rs (reify-s w (empty-subst)))) (mk-walk* w rs)))))
(defmacro
run-n
(n q-name &rest goals)
(quasiquote
(let
(((unquote q-name) (make-var)))
(map
(fn (s) (reify (unquote q-name) s))
(stream-take
(unquote n)
((mk-conj (splice-unquote goals)) empty-s))))))
(defmacro
run*
(q-name &rest goals)
(quasiquote (run-n -1 (unquote q-name) (splice-unquote goals))))
(defmacro
run
(n q-name &rest goals)
(quasiquote (run-n (unquote n) (unquote q-name) (splice-unquote goals))))

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@@ -1,66 +0,0 @@
;; lib/minikanren/stream.sx — Phase 2 piece A: lazy streams of substitutions.
;;
;; SX has no improper pairs (cons requires a list cdr), so we use a
;; tagged stream-cell shape for mature stream elements:
;;
;; stream ::= mzero empty (the SX empty list)
;; | (:s HEAD TAIL) mature cell, TAIL is a stream
;; | thunk (fn () ...) → stream when forced
;;
;; HEAD is a substitution dict. TAIL is again a stream (possibly a thunk),
;; which is what gives us laziness — mk-mplus can return a mature head with
;; a thunk in the tail, deferring the rest of the search.
(define mzero (list))
(define s-cons (fn (h t) (list :s h t)))
(define
s-cons?
(fn (s) (and (list? s) (not (empty? s)) (= (first s) :s))))
(define s-car (fn (s) (nth s 1)))
(define s-cdr (fn (s) (nth s 2)))
(define unit (fn (s) (s-cons s mzero)))
(define stream-pause? (fn (s) (and (not (list? s)) (callable? s))))
;; mk-mplus — interleave two streams. If s1 is paused we suspend and
;; swap (Reasoned Schemer "interleave"); otherwise mature-cons head with
;; mk-mplus of the rest.
(define
mk-mplus
(fn
(s1 s2)
(cond
((empty? s1) s2)
((stream-pause? s1) (fn () (mk-mplus s2 (s1))))
(:else (s-cons (s-car s1) (mk-mplus (s-cdr s1) s2))))))
;; mk-bind — apply goal g to every substitution in stream s, mk-mplus-ing.
(define
mk-bind
(fn
(s g)
(cond
((empty? s) mzero)
((stream-pause? s) (fn () (mk-bind (s) g)))
(:else (mk-mplus (g (s-car s)) (mk-bind (s-cdr s) g))))))
;; stream-take — force up to n results out of a (possibly lazy) stream
;; into a flat SX list of substitutions. n = -1 means take all.
(define
stream-take
(fn
(n s)
(cond
((= n 0) (list))
((empty? s) (list))
((stream-pause? s) (stream-take n (s)))
(:else
(cons
(s-car s)
(stream-take
(if (= n -1) -1 (- n 1))
(s-cdr s)))))))

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@@ -1,157 +0,0 @@
;; lib/minikanren/tabling.sx — Phase 7 piece A: naive memoization.
;;
;; A `table-2` wrapper for 2-arg relations (input, output). Caches by
;; ground input (walked at call time). On hit, replays the cached output
;; values; on miss, runs the relation, collects all output values from
;; the answer stream, stores, then replays.
;;
;; Limitations of naive memoization (vs proper SLG / producer-consumer
;; tabling):
;; - Each call must terminate before its result enters the cache —
;; so cyclic recursive calls with the SAME ground input would still
;; diverge (not addressed here).
;; - Caching by full ground walk only; partially-ground args fall
;; through to the underlying relation.
;;
;; Despite the limitations, naive memoization is enough for the
;; canonical demo: Fibonacci goes from exponential to linear because
;; each fib(k) result is computed at most once.
;;
;; Cache lifetime: a single global mk-tab-cache. Use `(mk-tab-clear!)`
;; between independent queries.
(define mk-tab-cache {})
(define mk-tab-clear! (fn () (set! mk-tab-cache {})))
(define
mk-tab-lookup
(fn
(key)
(cond
((has-key? mk-tab-cache key) (get mk-tab-cache key))
(:else :miss))))
(define
mk-tab-store!
(fn (key vals) (set! mk-tab-cache (assoc mk-tab-cache key vals))))
(define
mk-tab-ground-term?
(fn
(t)
(cond
((is-var? t) false)
((mk-cons-cell? t)
(and
(mk-tab-ground-term? (mk-cons-head t))
(mk-tab-ground-term? (mk-cons-tail t))))
((mk-list-pair? t) (every? mk-tab-ground-term? t))
(:else true))))
(define
mk-tab-replay-vals
(fn
(vals output s)
(cond
((empty? vals) mzero)
(:else
(let
((sp (mk-unify output (first vals) s)))
(let
((this-stream (cond ((= sp nil) mzero) (:else (unit sp)))))
(mk-mplus this-stream (mk-tab-replay-vals (rest vals) output s))))))))
(define
table-2
(fn
(name rel-fn)
(fn
(input output)
(fn
(s)
(let
((winput (mk-walk* input s)))
(cond
((mk-tab-ground-term? winput)
(let
((key (str name "@" winput)))
(let
((cached (mk-tab-lookup key)))
(cond
((= cached :miss)
(let
((all-substs (stream-take -1 ((rel-fn input output) s))))
(let
((vals (map (fn (s2) (mk-walk* output s2)) all-substs)))
(begin
(mk-tab-store! key vals)
(mk-tab-replay-vals vals output s)))))
(:else (mk-tab-replay-vals cached output s))))))
(:else ((rel-fn input output) s))))))))
;; --- table-1: 1-arg relation (one input, no output to cache) ---
;; The relation is a predicate `(p input)` that succeeds or fails.
;; Cache stores either :ok or :no.
(define
table-1
(fn
(name rel-fn)
(fn
(input)
(fn
(s)
(let
((winput (mk-walk* input s)))
(cond
((mk-tab-ground-term? winput)
(let
((key (str name "@1@" winput)))
(let
((cached (mk-tab-lookup key)))
(cond
((= cached :miss)
(let
((stream ((rel-fn input) s)))
(let
((peek (stream-take 1 stream)))
(cond
((empty? peek)
(begin (mk-tab-store! key :no) mzero))
(:else (begin (mk-tab-store! key :ok) stream))))))
((= cached :ok) (unit s))
((= cached :no) mzero)
(:else mzero)))))
(:else ((rel-fn input) s))))))))
;; --- table-3: 3-arg relation (input1 input2 output) ---
;; Cache keyed by (input1, input2). Output values cached as a list.
(define
table-3
(fn
(name rel-fn)
(fn
(i1 i2 output)
(fn
(s)
(let
((wi1 (mk-walk* i1 s)) (wi2 (mk-walk* i2 s)))
(cond
((and (mk-tab-ground-term? wi1) (mk-tab-ground-term? wi2))
(let
((key (str name "@3@" wi1 "/" wi2)))
(let
((cached (mk-tab-lookup key)))
(cond
((= cached :miss)
(let
((all-substs (stream-take -1 ((rel-fn i1 i2 output) s))))
(let
((vals (map (fn (s2) (mk-walk* output s2)) all-substs)))
(begin
(mk-tab-store! key vals)
(mk-tab-replay-vals vals output s)))))
(:else (mk-tab-replay-vals cached output s))))))
(:else ((rel-fn i1 i2 output) s))))))))

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@@ -1,49 +0,0 @@
;; lib/minikanren/tests/appendo3.sx — 3-list append.
(mk-test
"appendo3-forward"
(run*
q
(appendo3
(list 1 2)
(list 3 4)
(list 5 6)
q))
(list
(list 1 2 3 4 5 6)))
(mk-test
"appendo3-empty-everything"
(run* q (appendo3 (list) (list) (list) q))
(list (list)))
(mk-test
"appendo3-recover-middle"
(run*
q
(appendo3
(list 1 2)
q
(list 5 6)
(list 1 2 3 4 5 6)))
(list (list 3 4)))
(mk-test
"appendo3-empty-middle"
(run*
q
(appendo3
(list 1 2)
(list)
(list 3 4)
q))
(list (list 1 2 3 4)))
(mk-test
"appendo3-empty-first-and-last"
(run*
q
(appendo3 (list) (list 1 2 3) (list) q))
(list (list 1 2 3)))
(mk-tests-run!)

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@@ -1,33 +0,0 @@
;; lib/minikanren/tests/arith-prog.sx — arithmetic progression generation.
(mk-test
"arith-progo-zero-len"
(run* q (arith-progo 5 1 0 q))
(list (list)))
(mk-test
"arith-progo-1-to-5"
(run* q (arith-progo 1 1 5 q))
(list (list 1 2 3 4 5)))
(mk-test
"arith-progo-evens-from-0"
(run* q (arith-progo 0 2 5 q))
(list (list 0 2 4 6 8)))
(mk-test
"arith-progo-descending"
(run* q (arith-progo 10 -1 4 q))
(list (list 10 9 8 7)))
(mk-test
"arith-progo-zero-step"
(run* q (arith-progo 7 0 3 q))
(list (list 7 7 7)))
(mk-test
"arith-progo-negative-start"
(run* q (arith-progo -3 2 4 q))
(list (list -3 -1 1 3)))
(mk-tests-run!)

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@@ -1,54 +0,0 @@
;; lib/minikanren/tests/btree-walko.sx — walk a leaves-of-binary-tree relation
;; using matche dispatch on (:leaf v) and (:node left right) patterns.
(define
btree-walko
(fn
(tree v)
(matche
tree
((:leaf x) (== v x))
((:node l r) (conde ((btree-walko l v)) ((btree-walko r v)))))))
;; A small test tree: ((1 2) (3 (4 5))).
(define
test-btree
(list
:node (list :node (list :leaf 1) (list :leaf 2))
(list
:node (list :leaf 3)
(list :node (list :leaf 4) (list :leaf 5)))))
(mk-test
"btree-walko-enumerates-all-leaves"
(let
((leaves (run* q (btree-walko test-btree q))))
(and
(= (len leaves) 5)
(and
(some (fn (l) (= l 1)) leaves)
(and
(some (fn (l) (= l 2)) leaves)
(and
(some (fn (l) (= l 3)) leaves)
(and
(some (fn (l) (= l 4)) leaves)
(some (fn (l) (= l 5)) leaves)))))))
true)
(mk-test
"btree-walko-find-3-membership"
(run 1 q (btree-walko test-btree 3))
(list (make-symbol "_.0")))
(mk-test
"btree-walko-find-99-not-present"
(run* q (btree-walko test-btree 99))
(list))
(mk-test
"btree-walko-leaf-only"
(run* q (btree-walko (list :leaf 42) q))
(list 42))
(mk-tests-run!)

View File

@@ -1,87 +0,0 @@
;; lib/minikanren/tests/classics.sx — small classic-style puzzles that
;; exercise the full system end to end (relations + conde + matche +
;; fresh + run*). Each test is a self-contained miniKanren program.
;; -----------------------------------------------------------------------
;; Pet puzzle (3 friends, 3 pets, 1-each).
;; -----------------------------------------------------------------------
(mk-test
"classics-pet-puzzle"
(run*
q
(fresh
(a b c)
(== q (list a b c))
(permuteo (list :dog :cat :fish) (list a b c))
(== b :fish)
(conde ((== a :cat)) ((== a :fish)))))
(list (list :cat :fish :dog)))
;; -----------------------------------------------------------------------
;; Family-relations puzzle (uses membero on a fact list).
;; -----------------------------------------------------------------------
(define
parent-facts
(list
(list "alice" "bob")
(list "alice" "carol")
(list "bob" "dave")
(list "carol" "eve")
(list "dave" "frank")))
(define parento (fn (x y) (membero (list x y) parent-facts)))
(define grandparento (fn (x z) (fresh (y) (parento x y) (parento y z))))
(mk-test
"classics-grandparents-of-frank"
(run* q (grandparento q "frank"))
(list "bob"))
(mk-test
"classics-grandchildren-of-alice"
(run* q (grandparento "alice" q))
(list "dave" "eve"))
;; -----------------------------------------------------------------------
;; Symbolic differentiation, matche-driven.
;; Variable :x: d/dx x = 1
;; Sum (:+ a b): d/dx (a+b) = (da + db)
;; Product (:* a b): d/dx (a*b) = (da*b + a*db)
;; -----------------------------------------------------------------------
(define
diffo
(fn
(expr var d)
(matche
expr
(:x (== d 1))
((:+ a b)
(fresh
(da db)
(== d (list :+ da db))
(diffo a var da)
(diffo b var db)))
((:* a b)
(fresh
(da db)
(== d (list :+ (list :* da b) (list :* a db)))
(diffo a var da)
(diffo b var db))))))
(mk-test "classics-diff-of-x" (run* q (diffo :x :x q)) (list 1))
(mk-test
"classics-diff-of-x-plus-x"
(run* q (diffo (list :+ :x :x) :x q))
(list (list :+ 1 1)))
(mk-test
"classics-diff-of-x-times-x"
(run* q (diffo (list :* :x :x) :x q))
(list (list :+ (list :* 1 :x) (list :* :x 1))))
(mk-tests-run!)

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