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6d53d36495 briefing: push to origin/loops/common-lisp after each commit
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2026-05-05 20:08:03 +00:00
175 changed files with 12537 additions and 56307 deletions

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@@ -2771,8 +2771,8 @@ PLATFORM_DOM_JS = """
// If lambda takes 0 params, call without event arg (convenience for on-click handlers)
var wrapped = isLambda(handler)
? (lambdaParams(handler).length === 0
? function(e) { try { var r = cekCall(handler, NIL); if (globalThis._driveAsync) globalThis._driveAsync(r); } catch(err) { console.error("[sx-ref] domListen handler error:", name, err); } }
: function(e) { try { var r = cekCall(handler, [e]); if (globalThis._driveAsync) globalThis._driveAsync(r); } catch(err) { console.error("[sx-ref] domListen handler error:", name, err); } })
? function(e) { try { cekCall(handler, NIL); } catch(err) { console.error("[sx-ref] domListen handler error:", name, err); } }
: function(e) { try { cekCall(handler, [e]); } catch(err) { console.error("[sx-ref] domListen handler error:", name, err); } })
: handler;
if (name === "click") logInfo("domListen: click on <" + (el.tagName||"?").toLowerCase() + "> text=" + (el.textContent||"").substring(0,20) + " isLambda=" + isLambda(handler));
var passiveEvents = { touchstart: 1, touchmove: 1, wheel: 1, scroll: 1 };

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@@ -1892,34 +1892,8 @@ let handle_sx_harness_eval args =
let file = args |> member "file" |> to_string_option in
let setup_str = args |> member "setup" |> to_string_option in
let files_json = try args |> member "files" with _ -> `Null in
let host_stubs = match args |> member "host_stubs" with `Bool b -> b | _ -> false in
let e = !env in
let warnings = ref [] in
(* Inject stub host primitives so files using host-get/host-new/etc. can load *)
if host_stubs then begin
let stubs = {|
(define host-global (fn (&rest _) nil))
(define host-get (fn (&rest _) nil))
(define host-set! (fn (obj k v) v))
(define host-call (fn (&rest _) nil))
(define host-new (fn (&rest _) (dict)))
(define host-callback (fn (f) f))
(define host-typeof (fn (&rest _) "string"))
(define hs-ref-eq (fn (a b) (identical? a b)))
(define host-call-fn (fn (&rest _) nil))
(define host-iter? (fn (&rest _) false))
(define host-to-list (fn (&rest _) (list)))
(define host-await (fn (&rest _) nil))
(define host-new-function (fn (&rest _) nil))
(define load-library! (fn (&rest _) false))
|} in
let stub_exprs = Sx_parser.parse_all stubs in
List.iter (fun expr ->
try ignore (Sx_ref.eval_expr expr (Env e))
with exn ->
warnings := Printf.sprintf "Stub warning: %s" (Printexc.to_string exn) :: !warnings
) stub_exprs
end;
(* Collect all files to load *)
let all_files = match files_json with
| `List items ->
@@ -3044,8 +3018,7 @@ let tool_definitions = `List [
("mock", `Assoc [("type", `String "string"); ("description", `String "Optional mock platform overrides as SX dict, e.g. {:fetch (fn (url) {:status 200})}")]);
("file", `Assoc [("type", `String "string"); ("description", `String "Optional .sx file to load for definitions")]);
("files", `Assoc [("type", `String "array"); ("items", `Assoc [("type", `String "string")]); ("description", `String "Multiple .sx files to load in order")]);
("setup", `Assoc [("type", `String "string"); ("description", `String "SX setup expression to run before main evaluation")]);
("host_stubs", `Assoc [("type", `String "boolean"); ("description", `String "If true, inject nil-returning stubs for host-get/host-set!/host-call/host-new/etc. so files that use host primitives can load in the harness")])]
("setup", `Assoc [("type", `String "string"); ("description", `String "SX setup expression to run before main evaluation")])]
["expr"];
tool "sx_nav" "Manage sx-docs navigation and articles. Modes: list (all nav items with status), check (validate consistency), add (create article + nav entry), delete (remove nav entry + page fn), move (move entry between sections, rewriting hrefs)."
[("mode", `Assoc [("type", `String "string"); ("description", `String "Mode: list, check, add, delete, or move")]);

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@@ -703,11 +703,6 @@ let setup_evaluator_bridge env =
| [expr; e] -> Sx_ref.eval_expr expr (Env (Sx_runtime.unwrap_env e))
| [expr] -> Sx_ref.eval_expr expr (Env env)
| _ -> raise (Eval_error "eval-expr: expected (expr env?)"));
(* eval-in-env: (env expr) → result. Evaluates expr in the given env. *)
Sx_primitives.register "eval-in-env" (fun args ->
match args with
| [e; expr] -> Sx_ref.eval_expr expr e
| _ -> raise (Eval_error "eval-in-env: (env expr)"));
bind "trampoline" (fun args ->
match args with
| [v] ->
@@ -769,13 +764,7 @@ let setup_evaluator_bridge env =
| _ -> raise (Eval_error "register-special-form!: expected (name handler)"));
ignore (env_bind env "*custom-special-forms*" Sx_ref.custom_special_forms);
ignore (Sx_ref.register_special_form (String "<>") (NativeFn ("<>", fun args ->
List (List.map (fun a -> Sx_ref.eval_expr a (Env env)) args))));
(* current-env: special form — returns current lexical env as a first-class value *)
ignore (Sx_ref.register_special_form (String "current-env")
(NativeFn ("current-env", fun args ->
match args with
| [_arg_list; env_val] -> env_val
| _ -> Nil)))
List (List.map (fun a -> Sx_ref.eval_expr a (Env env)) args))))
(* ---- Type predicates and introspection ---- *)
let setup_introspection env =
@@ -961,24 +950,7 @@ let setup_env_operations env =
bind "env-has?" (fun args -> match args with [e; String k] -> Bool (Sx_types.env_has (uw e) k) | [e; Keyword k] -> Bool (Sx_types.env_has (uw e) k) | _ -> raise (Eval_error "env-has?: expected env and string"));
bind "env-bind!" (fun args -> match args with [e; String k; v] -> Sx_types.env_bind (uw e) k v | [e; Keyword k; v] -> Sx_types.env_bind (uw e) k v | _ -> raise (Eval_error "env-bind!: expected env, key, value"));
bind "env-set!" (fun args -> match args with [e; String k; v] -> Sx_types.env_set (uw e) k v | [e; Keyword k; v] -> Sx_types.env_set (uw e) k v | _ -> raise (Eval_error "env-set!: expected env, key, value"));
bind "env-extend" (fun args ->
match args with
| e :: pairs ->
let child = Sx_types.env_extend (uw e) in
let rec go = function
| [] -> ()
| k :: v :: rest ->
ignore (Sx_types.env_bind child (Sx_runtime.value_to_str k) v); go rest
| [_] -> raise (Eval_error "env-extend: odd number of key-val pairs") in
go pairs; Env child
| _ -> raise (Eval_error "env-extend: expected env"));
bind "env-lookup" (fun args ->
match args with
| [e; key] ->
let k = Sx_runtime.value_to_str key in
let raw = uw e in
if Sx_types.env_has raw k then Sx_types.env_get raw k else Nil
| _ -> raise (Eval_error "env-lookup: (env key)"));
bind "env-extend" (fun args -> match args with [e] -> Env (Sx_types.env_extend (uw e)) | _ -> raise (Eval_error "env-extend: expected env"));
bind "env-merge" (fun args -> match args with [a; b] -> Sx_runtime.env_merge a b | _ -> raise (Eval_error "env-merge: expected 2 envs"))
(* ---- Strict mode (gradual type system support) ---- *)

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@@ -1,4 +1,4 @@
(library
(name sx)
(wrapped false)
(libraries re re.pcre unix))
(libraries re re.pcre))

File diff suppressed because it is too large Load Diff

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@@ -539,4 +539,3 @@ let jit_try_call f args =
(match hook f arg_list with Some result -> incr _jit_hit; result | None -> incr _jit_miss; _jit_skip_sentinel)
| _ -> incr _jit_skip; _jit_skip_sentinel

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@@ -1,207 +0,0 @@
;; lib/common-lisp/tests/runtime.sx — tests for CL runtime layer
(load "lib/common-lisp/runtime.sx")
(defsuite
"cl-types"
(deftest "cl-null? nil" (assert= true (cl-null? nil)))
(deftest "cl-null? false" (assert= false (cl-null? false)))
(deftest
"cl-consp? pair"
(assert= true (cl-consp? (list 1 2))))
(deftest "cl-consp? nil" (assert= false (cl-consp? nil)))
(deftest "cl-listp? nil" (assert= true (cl-listp? nil)))
(deftest
"cl-listp? list"
(assert= true (cl-listp? (list 1 2))))
(deftest "cl-atom? nil" (assert= true (cl-atom? nil)))
(deftest "cl-atom? pair" (assert= false (cl-atom? (list 1))))
(deftest "cl-integerp?" (assert= true (cl-integerp? 42)))
(deftest "cl-floatp?" (assert= true (cl-floatp? 3.14)))
(deftest
"cl-characterp?"
(assert= true (cl-characterp? (integer->char 65))))
(deftest "cl-stringp?" (assert= true (cl-stringp? "hello")))
(deftest "cl-symbolp?" (assert= true (cl-symbolp? (quote foo)))))
(defsuite
"cl-arithmetic"
(deftest "cl-mod" (assert= 1 (cl-mod 10 3)))
(deftest "cl-rem" (assert= 1 (cl-rem 10 3)))
(deftest
"cl-quotient"
(assert= 3 (cl-quotient 10 3)))
(deftest "cl-gcd" (assert= 4 (cl-gcd 12 8)))
(deftest "cl-lcm" (assert= 12 (cl-lcm 4 6)))
(deftest "cl-abs pos" (assert= 5 (cl-abs 5)))
(deftest "cl-abs neg" (assert= 5 (cl-abs -5)))
(deftest "cl-min" (assert= 2 (cl-min 2 7)))
(deftest "cl-max" (assert= 7 (cl-max 2 7)))
(deftest "cl-evenp? t" (assert= true (cl-evenp? 4)))
(deftest "cl-evenp? f" (assert= false (cl-evenp? 3)))
(deftest "cl-oddp? t" (assert= true (cl-oddp? 7)))
(deftest "cl-zerop?" (assert= true (cl-zerop? 0)))
(deftest "cl-plusp?" (assert= true (cl-plusp? 1)))
(deftest "cl-minusp?" (assert= true (cl-minusp? -1)))
(deftest "cl-signum pos" (assert= 1 (cl-signum 42)))
(deftest "cl-signum neg" (assert= -1 (cl-signum -7)))
(deftest "cl-signum zero" (assert= 0 (cl-signum 0))))
(defsuite
"cl-chars"
(deftest
"cl-char-code"
(assert= 65 (cl-char-code (integer->char 65))))
(deftest "cl-code-char" (assert= true (char? (cl-code-char 65))))
(deftest
"cl-char-upcase"
(assert=
(integer->char 65)
(cl-char-upcase (integer->char 97))))
(deftest
"cl-char-downcase"
(assert=
(integer->char 97)
(cl-char-downcase (integer->char 65))))
(deftest
"cl-alpha-char-p"
(assert= true (cl-alpha-char-p (integer->char 65))))
(deftest
"cl-digit-char-p"
(assert= true (cl-digit-char-p (integer->char 48))))
(deftest
"cl-char=?"
(assert=
true
(cl-char=? (integer->char 65) (integer->char 65))))
(deftest
"cl-char<?"
(assert=
true
(cl-char<? (integer->char 65) (integer->char 90))))
(deftest
"cl-char space"
(assert= (integer->char 32) cl-char-space))
(deftest
"cl-char newline"
(assert= (integer->char 10) cl-char-newline)))
(defsuite
"cl-format"
(deftest
"cl-format nil basic"
(assert= "hello" (cl-format nil "~a" "hello")))
(deftest
"cl-format nil number"
(assert= "42" (cl-format nil "~d" 42)))
(deftest
"cl-format nil hex"
(assert= "ff" (cl-format nil "~x" 255)))
(deftest
"cl-format nil template"
(assert= "x=3 y=4" (cl-format nil "x=~d y=~d" 3 4)))
(deftest "cl-format nil tilde" (assert= "a~b" (cl-format nil "a~~b"))))
(defsuite
"cl-gensym"
(deftest
"cl-gensym returns symbol"
(assert= "symbol" (type-of (cl-gensym))))
(deftest "cl-gensym unique" (assert= false (= (cl-gensym) (cl-gensym)))))
(defsuite
"cl-sets"
(deftest "cl-make-set empty" (assert= true (cl-set? (cl-make-set))))
(deftest
"cl-set-add/member"
(let
((s (cl-make-set)))
(do
(cl-set-add s 1)
(assert= true (cl-set-memberp s 1)))))
(deftest
"cl-set-memberp false"
(assert= false (cl-set-memberp (cl-make-set) 42)))
(deftest
"cl-list->set"
(let
((s (cl-list->set (list 1 2 3))))
(assert= true (cl-set-memberp s 2)))))
(defsuite
"cl-lists"
(deftest
"cl-nth 0"
(assert=
1
(cl-nth 0 (list 1 2 3))))
(deftest
"cl-nth 2"
(assert=
3
(cl-nth 2 (list 1 2 3))))
(deftest
"cl-last"
(assert=
(list 3)
(cl-last (list 1 2 3))))
(deftest
"cl-butlast"
(assert=
(list 1 2)
(cl-butlast (list 1 2 3))))
(deftest
"cl-nthcdr 1"
(assert=
(list 2 3)
(cl-nthcdr 1 (list 1 2 3))))
(deftest
"cl-assoc hit"
(assert=
(list "b" 2)
(cl-assoc "b" (list (list "a" 1) (list "b" 2)))))
(deftest
"cl-assoc miss"
(assert= nil (cl-assoc "z" (list (list "a" 1)))))
(deftest
"cl-getf hit"
(assert= 42 (cl-getf (list "x" 42 "y" 99) "x")))
(deftest "cl-getf miss" (assert= nil (cl-getf (list "x" 42) "z")))
(deftest
"cl-adjoin new"
(assert=
(list 0 1 2)
(cl-adjoin 0 (list 1 2))))
(deftest
"cl-adjoin dup"
(assert=
(list 1 2)
(cl-adjoin 1 (list 1 2))))
(deftest
"cl-flatten"
(assert=
(list 1 2 3 4)
(cl-flatten (list 1 (list 2 3) 4))))
(deftest
"cl-member hit"
(assert=
(list 2 3)
(cl-member 2 (list 1 2 3))))
(deftest
"cl-member miss"
(assert=
nil
(cl-member 9 (list 1 2 3)))))
(defsuite
"cl-radix"
(deftest "binary" (assert= "1010" (cl-format-binary 10)))
(deftest "octal" (assert= "17" (cl-format-octal 15)))
(deftest "hex" (assert= "ff" (cl-format-hex 255)))
(deftest "decimal" (assert= "42" (cl-format-decimal 42)))
(deftest
"n->s r16"
(assert= "1f" (cl-integer-to-string 31 16)))
(deftest
"s->n r16"
(assert= 31 (cl-string-to-integer "1f" 16))))

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@@ -1,44 +0,0 @@
; lib/fiber.sx — pure SX fiber library using call/cc
;
; A fiber is a cooperative coroutine with true suspension (no eager
; pre-execution). Each fiber is a dict {:resume fn :done? fn}.
;
; make-fiber body → fiber dict
; body = (fn (yield init-val) ...) — body receives yield + first resume val
; yield = (fn (val) ...) — suspends fiber, returns val to resumer
;
; fiber-resume f v → next yielded value, or nil when body returns
; fiber-done? f → true after body has returned
(define make-fiber
(fn (body)
(let
((resume-k nil)
(caller-k nil)
(done false))
(let
((yield
(fn (val)
(call/cc
(fn (k)
(set! resume-k k)
(caller-k val))))))
{:resume
(fn (val)
(if
done
nil
(call/cc
(fn (k)
(set! caller-k k)
(if
(nil? resume-k)
(begin
(body yield val)
(set! done true)
(k nil))
(resume-k val))))))
:done? (fn () done)}))))
(define fiber-resume (fn (f v) ((get f :resume) v)))
(define fiber-done? (fn (f) ((get f :done?))))

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@@ -1,140 +0,0 @@
#!/usr/bin/env bash
# lib/haskell/conformance.sh — run the classic-program test suites.
# Writes lib/haskell/scoreboard.json and lib/haskell/scoreboard.md.
#
# Usage:
# bash lib/haskell/conformance.sh # run + write scoreboards
# bash lib/haskell/conformance.sh --check # run only, exit 1 on failure
set -euo pipefail
cd "$(git rev-parse --show-toplevel)"
SX_SERVER="hosts/ocaml/_build/default/bin/sx_server.exe"
if [ ! -x "$SX_SERVER" ]; then
MAIN_ROOT=$(git worktree list | head -1 | awk '{print $1}')
if [ -x "$MAIN_ROOT/$SX_SERVER" ]; then
SX_SERVER="$MAIN_ROOT/$SX_SERVER"
else
echo "ERROR: sx_server.exe not found. Run: cd hosts/ocaml && dune build"
exit 1
fi
fi
PROGRAMS=(fib sieve quicksort nqueens calculator collatz palindrome maybe fizzbuzz anagram roman binary either primes zipwith matrix wordcount powers)
PASS_COUNTS=()
FAIL_COUNTS=()
run_suite() {
local prog="$1"
local FILE="lib/haskell/tests/program-${prog}.sx"
local TMPFILE
TMPFILE=$(mktemp)
cat > "$TMPFILE" <<EPOCHS
(epoch 1)
(load "lib/haskell/tokenizer.sx")
(load "lib/haskell/layout.sx")
(load "lib/haskell/parser.sx")
(load "lib/haskell/desugar.sx")
(load "lib/haskell/runtime.sx")
(load "lib/haskell/match.sx")
(load "lib/haskell/eval.sx")
(load "lib/haskell/testlib.sx")
(epoch 2)
(load "$FILE")
(epoch 3)
(eval "(list hk-test-pass hk-test-fail)")
EPOCHS
local OUTPUT
OUTPUT=$(timeout 120 "$SX_SERVER" < "$TMPFILE" 2>&1 || true)
rm -f "$TMPFILE"
local LINE
LINE=$(echo "$OUTPUT" | awk '/^\(ok-len 3 / {getline; print; exit}')
if [ -z "$LINE" ]; then
LINE=$(echo "$OUTPUT" | grep -E '^\(ok 3 \([0-9]+ [0-9]+\)\)' | tail -1 \
| sed -E 's/^\(ok 3 //; s/\)$//' || true)
fi
if [ -z "$LINE" ]; then
echo "0 1"
else
local P F
P=$(echo "$LINE" | sed -E 's/^\(([0-9]+) ([0-9]+)\).*/\1/' || echo "0")
F=$(echo "$LINE" | sed -E 's/^\(([0-9]+) ([0-9]+)\).*/\2/' || echo "1")
echo "$P $F"
fi
}
for prog in "${PROGRAMS[@]}"; do
RESULT=$(run_suite "$prog")
P=$(echo "$RESULT" | cut -d' ' -f1)
F=$(echo "$RESULT" | cut -d' ' -f2)
PASS_COUNTS+=("$P")
FAIL_COUNTS+=("$F")
T=$((P + F))
if [ "$F" -eq 0 ]; then
printf '✓ %-14s %d/%d\n' "${prog}.hs" "$P" "$T"
else
printf '✗ %-14s %d/%d\n' "${prog}.hs" "$P" "$T"
fi
done
TOTAL_PASS=0
TOTAL_FAIL=0
PROG_PASS=0
for i in "${!PROGRAMS[@]}"; do
TOTAL_PASS=$((TOTAL_PASS + PASS_COUNTS[i]))
TOTAL_FAIL=$((TOTAL_FAIL + FAIL_COUNTS[i]))
[ "${FAIL_COUNTS[$i]}" -eq 0 ] && PROG_PASS=$((PROG_PASS + 1))
done
PROG_TOTAL=${#PROGRAMS[@]}
echo ""
echo "Classic programs: ${TOTAL_PASS}/$((TOTAL_PASS + TOTAL_FAIL)) tests | ${PROG_PASS}/${PROG_TOTAL} programs passing"
if [[ "${1:-}" == "--check" ]]; then
[ $TOTAL_FAIL -eq 0 ]
exit $?
fi
DATE=$(date '+%Y-%m-%d')
# scoreboard.json
{
printf '{\n'
printf ' "date": "%s",\n' "$DATE"
printf ' "total_pass": %d,\n' "$TOTAL_PASS"
printf ' "total_fail": %d,\n' "$TOTAL_FAIL"
printf ' "programs": {\n'
last=$((${#PROGRAMS[@]} - 1))
for i in "${!PROGRAMS[@]}"; do
prog="${PROGRAMS[$i]}"
if [ $i -lt $last ]; then
printf ' "%s": {"pass": %d, "fail": %d},\n' "$prog" "${PASS_COUNTS[$i]}" "${FAIL_COUNTS[$i]}"
else
printf ' "%s": {"pass": %d, "fail": %d}\n' "$prog" "${PASS_COUNTS[$i]}" "${FAIL_COUNTS[$i]}"
fi
done
printf ' }\n'
printf '}\n'
} > lib/haskell/scoreboard.json
# scoreboard.md
{
printf '# Haskell-on-SX Scoreboard\n\n'
printf 'Updated %s · Phase 6 (prelude extras + 18 programs)\n\n' "$DATE"
printf '| Program | Tests | Status |\n'
printf '|---------|-------|--------|\n'
for i in "${!PROGRAMS[@]}"; do
prog="${PROGRAMS[$i]}"
P=${PASS_COUNTS[$i]}
F=${FAIL_COUNTS[$i]}
T=$((P + F))
[ "$F" -eq 0 ] && STATUS="✓" || STATUS="✗"
printf '| %s | %d/%d | %s |\n' "${prog}.hs" "$P" "$T" "$STATUS"
done
printf '| **Total** | **%d/%d** | **%d/%d programs** |\n' \
"$TOTAL_PASS" "$((TOTAL_PASS + TOTAL_FAIL))" "$PROG_PASS" "$PROG_TOTAL"
} > lib/haskell/scoreboard.md
echo "Wrote lib/haskell/scoreboard.json and lib/haskell/scoreboard.md"
[ $TOTAL_FAIL -eq 0 ]

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@@ -1,249 +0,0 @@
;; Desugar the Haskell surface AST into a smaller core AST.
;;
;; Eliminates the three surface-only shapes produced by the parser:
;; :where BODY DECLS → :let DECLS BODY
;; :guarded GUARDS → :if C1 E1 (:if C2 E2 … (:app error …))
;; :list-comp EXPR QUALS → concatMap-based expression (§3.11)
;;
;; Everything else (:app, :op, :lambda, :let, :case, :do, :tuple,
;; :list, :range, :if, :neg, :sect-left / :sect-right, plus all
;; leaf forms and pattern / type nodes) is passed through after
;; recursing into children.
(define
hk-guards-to-if
(fn
(guards)
(cond
((empty? guards)
(list
:app
(list :var "error")
(list :string "Non-exhaustive guards")))
(:else
(let
((g (first guards)))
(list
:if
(hk-desugar (nth g 1))
(hk-desugar (nth g 2))
(hk-guards-to-if (rest guards))))))))
;; do-notation desugaring (Haskell 98 §3.14):
;; do { e } = e
;; do { e ; ss } = e >> do { ss }
;; do { p <- e ; ss } = e >>= \p -> do { ss }
;; do { let decls ; ss } = let decls in do { ss }
(define
hk-desugar-do
(fn
(stmts)
(cond
((empty? stmts) (raise "empty do block"))
((empty? (rest stmts))
(let ((s (first stmts)))
(cond
((= (first s) "do-expr") (hk-desugar (nth s 1)))
(:else
(raise "do block must end with an expression")))))
(:else
(let
((s (first stmts)) (rest-stmts (rest stmts)))
(let
((rest-do (hk-desugar-do rest-stmts)))
(cond
((= (first s) "do-expr")
(list
:app
(list
:app
(list :var ">>")
(hk-desugar (nth s 1)))
rest-do))
((= (first s) "do-bind")
(list
:app
(list
:app
(list :var ">>=")
(hk-desugar (nth s 2)))
(list :lambda (list (nth s 1)) rest-do)))
((= (first s) "do-let")
(list
:let
(map hk-desugar (nth s 1))
rest-do))
(:else (raise "unknown do-stmt tag")))))))))
;; List-comprehension desugaring (Haskell 98 §3.11):
;; [e | ] = [e]
;; [e | b, Q ] = if b then [e | Q] else []
;; [e | p <- l, Q ] = concatMap (\p -> [e | Q]) l
;; [e | let ds, Q ] = let ds in [e | Q]
(define
hk-lc-desugar
(fn
(e quals)
(cond
((empty? quals) (list :list (list e)))
(:else
(let
((q (first quals)))
(let
((qtag (first q)))
(cond
((= qtag "q-guard")
(list
:if
(hk-desugar (nth q 1))
(hk-lc-desugar e (rest quals))
(list :list (list))))
((= qtag "q-gen")
(list
:app
(list
:app
(list :var "concatMap")
(list
:lambda
(list (nth q 1))
(hk-lc-desugar e (rest quals))))
(hk-desugar (nth q 2))))
((= qtag "q-let")
(list
:let
(map hk-desugar (nth q 1))
(hk-lc-desugar e (rest quals))))
(:else
(raise
(str
"hk-lc-desugar: unknown qualifier tag "
qtag))))))))))
(define
hk-desugar
(fn
(node)
(cond
((not (list? node)) node)
((empty? node) node)
(:else
(let
((tag (first node)))
(cond
;; Transformations
((= tag "where")
(list
: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)))
;; Expression nodes
((= tag "app")
(list
:app
(hk-desugar (nth node 1))
(hk-desugar (nth node 2))))
((= tag "op")
(list
: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))
(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 "range")
(list
:range
(hk-desugar (nth node 1))
(hk-desugar (nth node 2))))
((= tag "range-step")
(list
: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))))
((= tag "let")
(list
:let
(map hk-desugar (nth node 1))
(hk-desugar (nth node 2))))
((= tag "case")
(list
:case
(hk-desugar (nth node 1))
(map hk-desugar (nth node 2))))
((= tag "alt")
(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))))
((= tag "sect-right")
(list
:sect-right
(nth node 1)
(hk-desugar (nth node 2))))
;; Top-level
((= tag "program")
(list :program (map hk-desugar (nth node 1))))
((= tag "module")
(list
:module
(nth node 1)
(nth node 2)
(nth node 3)
(map hk-desugar (nth node 4))))
;; Decls carrying a body
((= tag "fun-clause")
(list
:fun-clause
(nth node 1)
(nth node 2)
(hk-desugar (nth node 3))))
((= tag "pat-bind")
(list
:pat-bind
(nth node 1)
(hk-desugar (nth node 2))))
((= tag "bind")
(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-core
(fn (src) (hk-desugar (hk-parse-top src))))
(define
hk-core-expr
(fn (src) (hk-desugar (hk-parse src))))

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;; infer.sx — Hindley-Milner Algorithm W for Haskell-on-SX (Phase 4).
;;
;; Types: TVar, TCon, TArr, TApp, TTuple, TScheme
;; Substitution: apply, compose, restrict
;; Unification (with occurs check)
;; Instantiation + generalization (let-polymorphism)
;; Algorithm W for: literals, var, con, lambda, app, let, if, op, tuple, list
;; ─── Type constructors ────────────────────────────────────────────────────────
(define hk-tvar (fn (n) (list "TVar" n)))
(define hk-tcon (fn (s) (list "TCon" s)))
(define hk-tarr (fn (a b) (list "TArr" a b)))
(define hk-tapp (fn (a b) (list "TApp" a b)))
(define hk-ttuple (fn (ts) (list "TTuple" ts)))
(define hk-tscheme (fn (vs t) (list "TScheme" vs t)))
(define hk-tvar? (fn (t) (and (list? t) (not (empty? t)) (= (first t) "TVar"))))
(define hk-tcon? (fn (t) (and (list? t) (not (empty? t)) (= (first t) "TCon"))))
(define hk-tarr? (fn (t) (and (list? t) (not (empty? t)) (= (first t) "TArr"))))
(define hk-tapp? (fn (t) (and (list? t) (not (empty? t)) (= (first t) "TApp"))))
(define hk-ttuple? (fn (t) (and (list? t) (not (empty? t)) (= (first t) "TTuple"))))
(define hk-tscheme? (fn (t) (and (list? t) (not (empty? t)) (= (first t) "TScheme"))))
(define hk-tvar-name (fn (t) (nth t 1)))
(define hk-tcon-name (fn (t) (nth t 1)))
(define hk-tarr-t1 (fn (t) (nth t 1)))
(define hk-tarr-t2 (fn (t) (nth t 2)))
(define hk-tapp-t1 (fn (t) (nth t 1)))
(define hk-tapp-t2 (fn (t) (nth t 2)))
(define hk-ttuple-ts (fn (t) (nth t 1)))
(define hk-tscheme-vs (fn (t) (nth t 1)))
(define hk-tscheme-type (fn (t) (nth t 2)))
(define hk-t-int (hk-tcon "Int"))
(define hk-t-bool (hk-tcon "Bool"))
(define hk-t-string (hk-tcon "String"))
(define hk-t-char (hk-tcon "Char"))
(define hk-t-float (hk-tcon "Float"))
(define hk-t-list (fn (t) (hk-tapp (hk-tcon "[]") t)))
;; ─── Type formatter ──────────────────────────────────────────────────────────
(define
hk-type->str
(fn
(t)
(cond
((hk-tvar? t) (hk-tvar-name t))
((hk-tcon? t) (hk-tcon-name t))
((hk-tarr? t)
(let ((s1 (if (hk-tarr? (hk-tarr-t1 t))
(str "(" (hk-type->str (hk-tarr-t1 t)) ")")
(hk-type->str (hk-tarr-t1 t)))))
(str s1 " -> " (hk-type->str (hk-tarr-t2 t)))))
((hk-tapp? t)
(let ((h (hk-tapp-t1 t)))
(cond
((and (hk-tcon? h) (= (hk-tcon-name h) "[]"))
(str "[" (hk-type->str (hk-tapp-t2 t)) "]"))
(:else
(str "(" (hk-type->str h) " " (hk-type->str (hk-tapp-t2 t)) ")")))))
((hk-ttuple? t)
(str "(" (join ", " (map hk-type->str (hk-ttuple-ts t))) ")"))
((hk-tscheme? t)
(str "forall " (join " " (hk-tscheme-vs t)) ". " (hk-type->str (hk-tscheme-type t))))
(:else "<?>"))))
;; ─── Fresh variable counter ───────────────────────────────────────────────────
(define hk-fresh-ctr 0)
(define hk-fresh (fn () (set! hk-fresh-ctr (+ hk-fresh-ctr 1)) (hk-tvar (str "t" hk-fresh-ctr))))
(define hk-reset-fresh (fn () (set! hk-fresh-ctr 0)))
;; ─── Utilities ───────────────────────────────────────────────────────────────
(define hk-infer-member? (fn (x lst) (some (fn (y) (= x y)) lst)))
(define
hk-nub
(fn (lst)
(reduce (fn (acc x) (if (hk-infer-member? x acc) acc (append acc (list x)))) (list) lst)))
;; ─── Free type variables ──────────────────────────────────────────────────────
(define
hk-ftv
(fn
(t)
(cond
((hk-tvar? t) (list (hk-tvar-name t)))
((hk-tcon? t) (list))
((hk-tarr? t) (append (hk-ftv (hk-tarr-t1 t)) (hk-ftv (hk-tarr-t2 t))))
((hk-tapp? t) (append (hk-ftv (hk-tapp-t1 t)) (hk-ftv (hk-tapp-t2 t))))
((hk-ttuple? t) (reduce append (list) (map hk-ftv (hk-ttuple-ts t))))
((hk-tscheme? t)
(filter
(fn (v) (not (hk-infer-member? v (hk-tscheme-vs t))))
(hk-ftv (hk-tscheme-type t))))
(:else (list)))))
(define
hk-ftv-env
(fn (env)
(reduce (fn (acc k) (append acc (hk-ftv (get env k)))) (list) (keys env))))
;; ─── Substitution ─────────────────────────────────────────────────────────────
(define hk-subst-empty (dict))
(define
hk-subst-restrict
(fn
(s exclude)
(let ((r (dict)))
(for-each
(fn (k)
(when (not (hk-infer-member? k exclude))
(dict-set! r k (get s k))))
(keys s))
r)))
(define
hk-subst-apply
(fn
(s t)
(cond
((hk-tvar? t)
(let ((v (get s (hk-tvar-name t))))
(if (nil? v) t (hk-subst-apply s v))))
((hk-tarr? t)
(hk-tarr (hk-subst-apply s (hk-tarr-t1 t))
(hk-subst-apply s (hk-tarr-t2 t))))
((hk-tapp? t)
(hk-tapp (hk-subst-apply s (hk-tapp-t1 t))
(hk-subst-apply s (hk-tapp-t2 t))))
((hk-ttuple? t)
(hk-ttuple (map (fn (u) (hk-subst-apply s u)) (hk-ttuple-ts t))))
((hk-tscheme? t)
(let ((s2 (hk-subst-restrict s (hk-tscheme-vs t))))
(hk-tscheme (hk-tscheme-vs t)
(hk-subst-apply s2 (hk-tscheme-type t)))))
(:else t))))
(define
hk-subst-compose
(fn
(s2 s1)
(let ((r (hk-dict-copy s2)))
(for-each
(fn (k)
(when (nil? (get r k))
(dict-set! r k (hk-subst-apply s2 (get s1 k)))))
(keys s1))
r)))
(define
hk-env-apply-subst
(fn
(s env)
(let ((r (dict)))
(for-each (fn (k) (dict-set! r k (hk-subst-apply s (get env k)))) (keys env))
r)))
;; ─── Unification ─────────────────────────────────────────────────────────────
(define
hk-bind-var
(fn
(v t)
(cond
((and (hk-tvar? t) (= (hk-tvar-name t) v))
hk-subst-empty)
((hk-infer-member? v (hk-ftv t))
(raise (str "Occurs check failed: " v " in " (hk-type->str t))))
(:else
(let ((s (dict)))
(dict-set! s v t)
s)))))
(define
hk-zip-unify
(fn
(ts1 ts2 acc)
(if (or (empty? ts1) (empty? ts2))
acc
(let ((s (hk-unify (hk-subst-apply acc (first ts1))
(hk-subst-apply acc (first ts2)))))
(hk-zip-unify (rest ts1) (rest ts2) (hk-subst-compose s acc))))))
(define
hk-unify
(fn
(t1 t2)
(cond
((and (hk-tvar? t1) (hk-tvar? t2) (= (hk-tvar-name t1) (hk-tvar-name t2)))
hk-subst-empty)
((hk-tvar? t1) (hk-bind-var (hk-tvar-name t1) t2))
((hk-tvar? t2) (hk-bind-var (hk-tvar-name t2) t1))
((and (hk-tcon? t1) (hk-tcon? t2) (= (hk-tcon-name t1) (hk-tcon-name t2)))
hk-subst-empty)
((and (hk-tarr? t1) (hk-tarr? t2))
(let ((s1 (hk-unify (hk-tarr-t1 t1) (hk-tarr-t1 t2))))
(let ((s2 (hk-unify (hk-subst-apply s1 (hk-tarr-t2 t1))
(hk-subst-apply s1 (hk-tarr-t2 t2)))))
(hk-subst-compose s2 s1))))
((and (hk-tapp? t1) (hk-tapp? t2))
(let ((s1 (hk-unify (hk-tapp-t1 t1) (hk-tapp-t1 t2))))
(let ((s2 (hk-unify (hk-subst-apply s1 (hk-tapp-t2 t1))
(hk-subst-apply s1 (hk-tapp-t2 t2)))))
(hk-subst-compose s2 s1))))
((and (hk-ttuple? t1) (hk-ttuple? t2)
(= (length (hk-ttuple-ts t1)) (length (hk-ttuple-ts t2))))
(hk-zip-unify (hk-ttuple-ts t1) (hk-ttuple-ts t2) hk-subst-empty))
(:else
(raise (str "Cannot unify " (hk-type->str t1) " with " (hk-type->str t2)))))))
;; ─── Instantiation and generalization ────────────────────────────────────────
(define
hk-instantiate
(fn
(t)
(if (not (hk-tscheme? t))
t
(let ((s (dict)))
(for-each (fn (v) (dict-set! s v (hk-fresh))) (hk-tscheme-vs t))
(hk-subst-apply s (hk-tscheme-type t))))))
(define
hk-generalize
(fn
(env t)
(let ((free-t (hk-nub (hk-ftv t)))
(free-env (hk-nub (hk-ftv-env env))))
(let ((bound (filter (fn (v) (not (hk-infer-member? v free-env))) free-t)))
(if (empty? bound)
t
(hk-tscheme bound t))))))
;; ─── Pattern binding extraction ──────────────────────────────────────────────
;; Returns a dict of name → type bindings introduced by matching pat against tv.
(define
hk-w-pat
(fn
(pat tv)
(let ((tag (first pat)))
(cond
((= tag "p-var") (let ((d (dict))) (dict-set! d (nth pat 1) tv) d))
((= tag "p-wild") (dict))
(:else (dict))))))
;; ─── Algorithm W ─────────────────────────────────────────────────────────────
;; hk-w : env × expr → (list subst type)
(define
hk-w-let
(fn
(env binds body)
;; Infer types for each binding in order, generalising at each step.
(let
((env2
(reduce
(fn
(cur-env b)
(let ((tag (first b)))
(cond
;; Simple pattern binding: let x = expr
((or (= tag "bind") (= tag "pat-bind"))
(let ((pat (nth b 1))
(rhs (nth b 2)))
(let ((tv (hk-fresh)))
(let ((r (hk-w cur-env rhs)))
(let ((s1 (first r)) (t1 (nth r 1)))
(let ((s2 (hk-unify (hk-subst-apply s1 tv) t1)))
(let ((s (hk-subst-compose s2 s1)))
(let ((t-gen (hk-generalize (hk-env-apply-subst s cur-env)
(hk-subst-apply s t1))))
(let ((bindings (hk-w-pat pat t-gen)))
(let ((r2 (hk-dict-copy cur-env)))
(for-each
(fn (k) (dict-set! r2 k (get bindings k)))
(keys bindings))
r2))))))))))
;; Function clause: let f x y = expr
((= tag "fun-clause")
(let ((name (nth b 1))
(pats (nth b 2))
(body2 (nth b 3)))
;; Treat as: let name = lambda pats body2
(let ((rhs (if (empty? pats)
body2
(list "lambda" pats body2))))
(let ((tv (hk-fresh)))
(let ((env-rec (hk-dict-copy cur-env)))
(dict-set! env-rec name tv)
(let ((r (hk-w env-rec rhs)))
(let ((s1 (first r)) (t1 (nth r 1)))
(let ((s2 (hk-unify (hk-subst-apply s1 tv) t1)))
(let ((s (hk-subst-compose s2 s1)))
(let ((t-gen (hk-generalize
(hk-env-apply-subst s cur-env)
(hk-subst-apply s t1))))
(let ((r2 (hk-dict-copy cur-env)))
(dict-set! r2 name t-gen)
r2)))))))))))
(:else cur-env))))
env
binds)))
(hk-w env2 body))))
(define
hk-w
(fn
(env expr)
(let ((tag (first expr)))
(cond
;; Literals
((= tag "int") (list hk-subst-empty hk-t-int))
((= tag "float") (list hk-subst-empty hk-t-float))
((= tag "string") (list hk-subst-empty hk-t-string))
((= tag "char") (list hk-subst-empty hk-t-char))
;; Variable
((= tag "var")
(let ((name (nth expr 1)))
(let ((scheme (get env name)))
(if (nil? scheme)
(raise (str "Unbound variable: " name))
(list hk-subst-empty (hk-instantiate scheme))))))
;; Constructor (same lookup as var)
((= tag "con")
(let ((name (nth expr 1)))
(let ((scheme (get env name)))
(if (nil? scheme)
(list hk-subst-empty (hk-fresh))
(list hk-subst-empty (hk-instantiate scheme))))))
;; Unary negation
((= tag "neg")
(let ((r (hk-w env (nth expr 1))))
(let ((s1 (first r)) (t1 (nth r 1)))
(let ((s2 (hk-unify t1 hk-t-int)))
(list (hk-subst-compose s2 s1) hk-t-int)))))
;; Lambda: ("lambda" pats body)
((= tag "lambda")
(let ((pats (nth expr 1))
(body (nth expr 2)))
(if (empty? pats)
(hk-w env body)
(let ((pat (first pats))
(rest (rest pats)))
(let ((tv (hk-fresh)))
(let ((bindings (hk-w-pat pat tv)))
(let ((env2 (hk-dict-copy env)))
(for-each (fn (k) (dict-set! env2 k (get bindings k))) (keys bindings))
(let ((inner (if (empty? rest)
body
(list "lambda" rest body))))
(let ((r (hk-w env2 inner)))
(let ((s1 (first r)) (t1 (nth r 1)))
(list s1 (hk-tarr (hk-subst-apply s1 tv) t1))))))))))))
;; Application: ("app" f x)
((= tag "app")
(let ((tv (hk-fresh)))
(let ((r1 (hk-w env (nth expr 1))))
(let ((s1 (first r1)) (tf (nth r1 1)))
(let ((r2 (hk-w (hk-env-apply-subst s1 env) (nth expr 2))))
(let ((s2 (first r2)) (tx (nth r2 1)))
(let ((s3 (hk-unify (hk-subst-apply s2 tf) (hk-tarr tx tv))))
(let ((s (hk-subst-compose s3 (hk-subst-compose s2 s1))))
(list s (hk-subst-apply s3 tv))))))))))
;; Let: ("let" binds body)
((= tag "let")
(hk-w-let env (nth expr 1) (nth expr 2)))
;; If: ("if" cond then else)
((= tag "if")
(let ((r1 (hk-w env (nth expr 1))))
(let ((s1 (first r1)) (tc (nth r1 1)))
(let ((s2 (hk-unify tc hk-t-bool)))
(let ((s12 (hk-subst-compose s2 s1)))
(let ((r2 (hk-w (hk-env-apply-subst s12 env) (nth expr 2))))
(let ((s3 (first r2)) (tt (nth r2 1)))
(let ((s123 (hk-subst-compose s3 s12)))
(let ((r3 (hk-w (hk-env-apply-subst s123 env) (nth expr 3))))
(let ((s4 (first r3)) (te (nth r3 1)))
(let ((s5 (hk-unify (hk-subst-apply s4 tt) te)))
(let ((s (hk-subst-compose s5 (hk-subst-compose s4 s123))))
(list s (hk-subst-apply s5 te))))))))))))))
;; Binary operator: ("op" op-name left right)
;; Desugar to double application.
((= tag "op")
(hk-w env
(list "app"
(list "app" (list "var" (nth expr 1)) (nth expr 2))
(nth expr 3))))
;; Tuple: ("tuple" [e1 e2 ...])
((= tag "tuple")
(let ((elems (nth expr 1)))
(let ((s-acc hk-subst-empty)
(ts (list)))
(for-each
(fn (e)
(let ((r (hk-w (hk-env-apply-subst s-acc env) e)))
(set! s-acc (hk-subst-compose (first r) s-acc))
(set! ts (append ts (list (nth r 1))))))
elems)
(list s-acc (hk-ttuple (map (fn (t) (hk-subst-apply s-acc t)) ts))))))
;; List literal: ("list" [e1 e2 ...])
((= tag "list")
(let ((elems (nth expr 1)))
(if (empty? elems)
(list hk-subst-empty (hk-t-list (hk-fresh)))
(let ((tv (hk-fresh)))
(let ((s-acc hk-subst-empty))
(for-each
(fn (e)
(let ((r (hk-w (hk-env-apply-subst s-acc env) e)))
(let ((s2 (first r)) (te (nth r 1)))
(let ((s3 (hk-unify (hk-subst-apply s2 tv) te)))
(set! s-acc (hk-subst-compose s3 (hk-subst-compose s2 s-acc)))))))
elems)
(list s-acc (hk-t-list (hk-subst-apply s-acc tv))))))))
;; Location annotation: just delegate — position is for outer context.
((= tag "loc")
(hk-w env (nth expr 3)))
(:else
(raise (str "hk-w: unhandled tag: " tag)))))))
;; ─── Initial type environment ─────────────────────────────────────────────────
;; Monomorphic numeric ops (no Num typeclass yet — upgraded in Phase 5).
(define
hk-type-env0
(fn ()
(let ((env (dict)))
;; Integer arithmetic
(for-each
(fn (op)
(dict-set! env op (hk-tarr hk-t-int (hk-tarr hk-t-int hk-t-int))))
(list "+" "-" "*" "div" "mod" "quot" "rem"))
;; Integer comparison → Bool
(for-each
(fn (op)
(dict-set! env op (hk-tarr hk-t-int (hk-tarr hk-t-int hk-t-bool))))
(list "==" "/=" "<" "<=" ">" ">="))
;; Boolean operators
(dict-set! env "&&" (hk-tarr hk-t-bool (hk-tarr hk-t-bool hk-t-bool)))
(dict-set! env "||" (hk-tarr hk-t-bool (hk-tarr hk-t-bool hk-t-bool)))
(dict-set! env "not" (hk-tarr hk-t-bool hk-t-bool))
;; Constructors
(dict-set! env "True" hk-t-bool)
(dict-set! env "False" hk-t-bool)
;; Polymorphic list ops (using TScheme)
(let ((a (hk-tvar "a")))
(dict-set! env "head" (hk-tscheme (list "a") (hk-tarr (hk-t-list a) a)))
(dict-set! env "tail" (hk-tscheme (list "a") (hk-tarr (hk-t-list a) (hk-t-list a))))
(dict-set! env "null" (hk-tscheme (list "a") (hk-tarr (hk-t-list a) hk-t-bool)))
(dict-set! env "length" (hk-tscheme (list "a") (hk-tarr (hk-t-list a) hk-t-int)))
(dict-set! env "reverse" (hk-tscheme (list "a") (hk-tarr (hk-t-list a) (hk-t-list a))))
(dict-set! env ":"
(hk-tscheme (list "a") (hk-tarr a (hk-tarr (hk-t-list a) (hk-t-list a))))))
;; negate
(dict-set! env "negate" (hk-tarr hk-t-int hk-t-int))
(dict-set! env "abs" (hk-tarr hk-t-int hk-t-int))
env)))
;; ─── Expression brief printer ────────────────────────────────────────────────
;; Produces a short human-readable label for an AST node used in error messages.
(define
hk-expr->brief
(fn
(expr)
(cond
((not (list? expr)) (str expr))
((empty? expr) "()")
(:else
(let ((tag (first expr)))
(cond
((= tag "var") (nth expr 1))
((= tag "con") (nth expr 1))
((= tag "int") (str (nth expr 1)))
((= tag "float") (str (nth expr 1)))
((= tag "string") (str "\"" (nth expr 1) "\""))
((= tag "char") (str "'" (nth expr 1) "'"))
((= tag "neg") (str "(-" (hk-expr->brief (nth expr 1)) ")"))
((= tag "app")
(str "(" (hk-expr->brief (nth expr 1))
" " (hk-expr->brief (nth expr 2)) ")"))
((= tag "op")
(str "(" (hk-expr->brief (nth expr 2))
" " (nth expr 1)
" " (hk-expr->brief (nth expr 3)) ")"))
((= tag "lambda") "(\\ ...)")
((= tag "let") "(let ...)")
((= tag "if") "(if ...)")
((= tag "tuple") "(tuple ...)")
((= tag "list") "[...]")
((= tag "loc") (hk-expr->brief (nth expr 3)))
(:else (str "(" tag " ..."))))))))
;; ─── Loc-annotated inference ──────────────────────────────────────────────────
;; ("loc" LINE COL INNER) node: hk-w catches any error and re-raises with
;; "at LINE:COL: " prepended. Emitted by the parser or test scaffolding.
;; Extended hk-w handles "loc" — handled inline in the cond below.
;; ─── Program-level inference ─────────────────────────────────────────────────
;; hk-infer-decl : env × decl → ("ok" name type-str) | ("err" msg) | nil
;; Uses tagged results so callers don't need re-raise.
(define
hk-infer-decl
(fn
(env decl)
(let
((tag (first decl)))
(cond
((= tag "fun-clause")
(let
((name (nth decl 1)) (pats (nth decl 2)) (body (nth decl 3)))
(let
((rhs (if (empty? pats) body (list "lambda" pats body))))
(guard
(e (#t (list "err" (str "in '" name "': " e))))
(begin
(hk-reset-fresh)
(let
((r (hk-w env rhs)))
(let
((final-type (hk-subst-apply (first r) (nth r 1))))
(list "ok" name (hk-type->str final-type) final-type))))))))
((or (= tag "bind") (= tag "pat-bind"))
(let
((pat (nth decl 1)) (body (nth decl 2)))
(let
((label (if (and (list? pat) (= (first pat) "p-var")) (nth pat 1) "<binding>")))
(guard
(e (#t (list "err" (str "in '" label "': " e))))
(begin
(hk-reset-fresh)
(let
((r (hk-w env body)))
(let
((final-type (hk-subst-apply (first r) (nth r 1))))
(list "ok" label (hk-type->str final-type) final-type))))))))
(:else nil)))))
;; hk-infer-prog : program-ast × env → list of ("ok" name type) | ("err" msg)
(define
hk-ast-type
(fn
(ast)
(let
((tag (first ast)))
(cond
((= tag "t-con") (list "TCon" (nth ast 1)))
((= tag "t-var") (list "TVar" (nth ast 1)))
((= tag "t-fun")
(list "TArr" (hk-ast-type (nth ast 1)) (hk-ast-type (nth ast 2))))
((= tag "t-app")
(list "TApp" (hk-ast-type (nth ast 1)) (hk-ast-type (nth ast 2))))
((= tag "t-list")
(list "TApp" (list "TCon" "[]") (hk-ast-type (nth ast 1))))
((= tag "t-tuple") (list "TTuple" (map hk-ast-type (nth ast 1))))
(:else (raise (str "unknown type node: " (first ast))))))))
;; ─── Convenience ─────────────────────────────────────────────────────────────
;; hk-infer-type : Haskell expression source → inferred type string
(define
hk-collect-tvars
(fn
(t acc)
(cond
((= (first t) "TVar")
(if
(some (fn (v) (= v (nth t 1))) acc)
acc
(begin (append! acc (nth t 1)) acc)))
((= (first t) "TArr")
(hk-collect-tvars (nth t 2) (hk-collect-tvars (nth t 1) acc)))
((= (first t) "TApp")
(hk-collect-tvars (nth t 2) (hk-collect-tvars (nth t 1) acc)))
((= (first t) "TTuple")
(reduce (fn (a elem) (hk-collect-tvars elem a)) acc (nth t 1)))
(:else acc))))
(define
hk-check-sig
(fn
(declared-ast inferred-type)
(let
((declared (hk-ast-type declared-ast)))
(let
((tvars (hk-collect-tvars declared (list))))
(let
((scheme (if (empty? tvars) declared (list "TScheme" tvars declared))))
(let
((inst (hk-instantiate scheme)))
(hk-unify inst inferred-type)))))))
(define
hk-infer-prog
(fn
(prog env)
(let
((decls (cond ((and (list? prog) (= (first prog) "program")) (nth prog 1)) ((and (list? prog) (= (first prog) "module")) (nth prog 3)) (:else (list))))
(results (list))
(sigs (dict)))
(for-each
(fn
(d)
(when
(= (first d) "type-sig")
(let
((names (nth d 1)) (type-ast (nth d 2)))
(for-each (fn (n) (dict-set! sigs n type-ast)) names))))
decls)
(for-each
(fn
(d)
(let
((r (hk-infer-decl env d)))
(when
(not (nil? r))
(let
((checked (if (and (= (first r) "ok") (has-key? sigs (nth r 1))) (guard (e (true (list "err" (str "in '" (nth r 1) "': declared type mismatch: " e)))) (begin (hk-check-sig (get sigs (nth r 1)) (nth r 3)) r)) r)))
(append! results checked)
(when
(= (first checked) "ok")
(dict-set! env (nth checked 1) (nth checked 3)))))))
decls)
results)))
(define
hk-infer-type
(fn
(src)
(hk-reset-fresh)
(let
((ast (hk-core-expr src)) (env (hk-type-env0)))
(let
((r (hk-w env ast)))
(hk-type->str (hk-subst-apply (first r) (nth r 1)))))))

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@@ -1,329 +0,0 @@
;; Haskell 98 layout algorithm (§10.3).
;;
;; Consumes the raw token stream produced by hk-tokenize and inserts
;; virtual braces / semicolons (types vlbrace / vrbrace / vsemi) based
;; on indentation. Newline tokens are consumed and stripped.
;;
;; (hk-layout (hk-tokenize src)) → tokens-with-virtual-layout
;; ── Pre-pass ──────────────────────────────────────────────────────
;;
;; Walks the raw token list and emits an augmented stream containing
;; two fresh pseudo-tokens:
;;
;; {:type "layout-open" :col N :keyword K}
;; At stream start (K = "<module>") unless the first real token is
;; `module` or `{`. Also immediately after every `let` / `where` /
;; `do` / `of` whose following token is NOT `{`. N is the column
;; of the token that follows.
;;
;; {:type "layout-indent" :col N}
;; Before any token whose line is strictly greater than the line
;; of the previously emitted real token, EXCEPT when that token
;; is already preceded by a layout-open (Haskell 98 §10.3 note 3).
;;
;; Raw newline tokens are dropped.
(define
hk-layout-keyword?
(fn
(tok)
(and
(= (get tok "type") "reserved")
(or
(= (get tok "value") "let")
(= (get tok "value") "where")
(= (get tok "value") "do")
(= (get tok "value") "of")))))
(define
hk-layout-pre
(fn
(tokens)
(let
((result (list))
(n (len tokens))
(i 0)
(prev-line -1)
(first-real-emitted false)
(suppress-next-indent false))
(define
hk-next-real-idx
(fn
(start)
(let
((j start))
(define
hk-nri-loop
(fn
()
(when
(and
(< j n)
(= (get (nth tokens j) "type") "newline"))
(do (set! j (+ j 1)) (hk-nri-loop)))))
(hk-nri-loop)
j)))
(define
hk-pre-step
(fn
()
(when
(< i n)
(let
((tok (nth tokens i)) (ty (get tok "type")))
(cond
((= ty "newline") (do (set! i (+ i 1)) (hk-pre-step)))
(:else
(do
(when
(not first-real-emitted)
(do
(set! first-real-emitted true)
(when
(not
(or
(and
(= ty "reserved")
(= (get tok "value") "module"))
(= ty "lbrace")))
(do
(append!
result
{:type "layout-open"
:col (get tok "col")
:keyword "<module>"
:line (get tok "line")})
(set! suppress-next-indent true)))))
(when
(and
(>= prev-line 0)
(> (get tok "line") prev-line)
(not suppress-next-indent))
(append!
result
{:type "layout-indent"
:col (get tok "col")
:line (get tok "line")}))
(set! suppress-next-indent false)
(set! prev-line (get tok "line"))
(append! result tok)
(when
(hk-layout-keyword? tok)
(let
((j (hk-next-real-idx (+ i 1))))
(cond
((>= j n)
(do
(append!
result
{:type "layout-open"
:col 0
:keyword (get tok "value")
:line (get tok "line")})
(set! suppress-next-indent true)))
((= (get (nth tokens j) "type") "lbrace") nil)
(:else
(do
(append!
result
{:type "layout-open"
:col (get (nth tokens j) "col")
:keyword (get tok "value")
:line (get tok "line")})
(set! suppress-next-indent true))))))
(set! i (+ i 1))
(hk-pre-step))))))))
(hk-pre-step)
result)))
;; ── Main pass: L algorithm ────────────────────────────────────────
;;
;; Stack is a list; the head is the top of stack. Each entry is
;; either the keyword :explicit (pushed by an explicit `{`) or a dict
;; {:col N :keyword K} pushed by a layout-open marker.
;;
;; Rules (following Haskell 98 §10.3):
;;
;; layout-open(n) vs stack:
;; empty or explicit top → push n; emit {
;; n > top-col → push n; emit {
;; otherwise → emit { }; retry as indent(n)
;;
;; layout-indent(n) vs stack:
;; empty or explicit top → drop
;; n == top-col → emit ;
;; n < top-col → emit }; pop; recurse
;; n > top-col → drop
;;
;; lbrace → push :explicit; emit {
;; rbrace → pop if :explicit; emit }
;; `in` with implicit let on top → emit }; pop; emit in
;; any other token → emit
;;
;; EOF: emit } for every remaining implicit context.
(define
hk-layout-L
(fn
(pre-toks)
(let
((result (list))
(stack (list))
(n (len pre-toks))
(i 0))
(define hk-emit (fn (t) (append! result t)))
(define
hk-indent-at
(fn
(col line)
(cond
((or (empty? stack) (= (first stack) :explicit)) nil)
(:else
(let
((top-col (get (first stack) "col")))
(cond
((= col top-col)
(hk-emit
{:type "vsemi" :value ";" :line line :col col}))
((< col top-col)
(do
(hk-emit
{:type "vrbrace" :value "}" :line line :col col})
(set! stack (rest stack))
(hk-indent-at col line)))
(:else nil)))))))
(define
hk-open-at
(fn
(col keyword line)
(cond
((and
(> col 0)
(or
(empty? stack)
(= (first stack) :explicit)
(> col (get (first stack) "col"))))
(do
(hk-emit
{:type "vlbrace" :value "{" :line line :col col})
(set! stack (cons {:col col :keyword keyword} stack))))
(:else
(do
(hk-emit
{:type "vlbrace" :value "{" :line line :col col})
(hk-emit
{:type "vrbrace" :value "}" :line line :col col})
(hk-indent-at col line))))))
(define
hk-close-eof
(fn
()
(when
(and
(not (empty? stack))
(not (= (first stack) :explicit)))
(do
(hk-emit {:type "vrbrace" :value "}" :line 0 :col 0})
(set! stack (rest stack))
(hk-close-eof)))))
;; Peek past further layout-indent / layout-open markers to find
;; the next real token's value when its type is `reserved`.
;; Returns nil if no such token.
(define
hk-peek-next-reserved
(fn
(start)
(let ((j (+ start 1)) (found nil) (done false))
(define
hk-pnr-loop
(fn
()
(when
(and (not done) (< j n))
(let
((t (nth pre-toks j)) (ty (get t "type")))
(cond
((or
(= ty "layout-indent")
(= ty "layout-open"))
(do (set! j (+ j 1)) (hk-pnr-loop)))
((= ty "reserved")
(do (set! found (get t "value")) (set! done true)))
(:else (set! done true)))))))
(hk-pnr-loop)
found)))
(define
hk-layout-step
(fn
()
(when
(< i n)
(let
((tok (nth pre-toks i)) (ty (get tok "type")))
(cond
((= ty "eof")
(do
(hk-close-eof)
(hk-emit tok)
(set! i (+ i 1))
(hk-layout-step)))
((= ty "layout-open")
(do
(hk-open-at
(get tok "col")
(get tok "keyword")
(get tok "line"))
(set! i (+ i 1))
(hk-layout-step)))
((= ty "layout-indent")
(cond
((= (hk-peek-next-reserved i) "in")
(do (set! i (+ i 1)) (hk-layout-step)))
(:else
(do
(hk-indent-at (get tok "col") (get tok "line"))
(set! i (+ i 1))
(hk-layout-step)))))
((= ty "lbrace")
(do
(set! stack (cons :explicit stack))
(hk-emit tok)
(set! i (+ i 1))
(hk-layout-step)))
((= ty "rbrace")
(do
(when
(and
(not (empty? stack))
(= (first stack) :explicit))
(set! stack (rest stack)))
(hk-emit tok)
(set! i (+ i 1))
(hk-layout-step)))
((and
(= ty "reserved")
(= (get tok "value") "in")
(not (empty? stack))
(not (= (first stack) :explicit))
(= (get (first stack) "keyword") "let"))
(do
(hk-emit
{:type "vrbrace"
:value "}"
:line (get tok "line")
:col (get tok "col")})
(set! stack (rest stack))
(hk-emit tok)
(set! i (+ i 1))
(hk-layout-step)))
(:else
(do
(hk-emit tok)
(set! i (+ i 1))
(hk-layout-step))))))))
(hk-layout-step)
(hk-close-eof)
result)))
(define hk-layout (fn (tokens) (hk-layout-L (hk-layout-pre tokens))))

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@@ -1,201 +0,0 @@
;; Value-level pattern matching.
;;
;; Constructor values are tagged lists whose first element is the
;; constructor name (a string). Tuples use the special tag "Tuple".
;; Lists use the spine of `:` cons and `[]` nil.
;;
;; Just 5 → ("Just" 5)
;; Nothing → ("Nothing")
;; (1, 2) → ("Tuple" 1 2)
;; [1, 2] → (":" 1 (":" 2 ("[]")))
;; () → ("()")
;;
;; Primitive values (numbers, strings, chars) are stored raw.
;;
;; The matcher takes a pattern AST node, a value, and an environment
;; dict; it returns an extended dict on success, or `nil` on failure.
;; ── Value builders ──────────────────────────────────────────
(define
hk-mk-con
(fn
(cname args)
(let ((result (list cname)))
(for-each (fn (a) (append! result a)) args)
result)))
(define
hk-mk-tuple
(fn
(items)
(let ((result (list "Tuple")))
(for-each (fn (x) (append! result x)) items)
result)))
(define hk-mk-nil (fn () (list "[]")))
(define hk-mk-cons (fn (h t) (list ":" h t)))
(define
hk-mk-list
(fn
(items)
(cond
((empty? items) (hk-mk-nil))
(:else
(hk-mk-cons (first items) (hk-mk-list (rest items)))))))
;; ── Predicates / accessors on constructor values ───────────
(define
hk-is-con-val?
(fn
(v)
(and
(list? v)
(not (empty? v))
(string? (first v)))))
(define hk-val-con-name (fn (v) (first v)))
(define hk-val-con-args (fn (v) (rest v)))
;; ── The matcher ────────────────────────────────────────────
;;
;; Pattern match forces the scrutinee to WHNF before inspecting it
;; — except for `p-wild`, `p-var`, and `p-lazy`, which never need
;; to look at the value. Args of constructor / tuple / list values
;; remain thunked (they're forced only when their own pattern needs
;; to inspect them, recursively).
(define
hk-match
(fn
(pat val env)
(cond
((not (list? pat)) nil)
((empty? pat) nil)
(:else
(let
((tag (first pat)))
(cond
((= tag "p-wild") env)
((= tag "p-var") (assoc env (nth pat 1) val))
((= tag "p-lazy") (hk-match (nth pat 1) val env))
((= tag "p-as")
(let
((res (hk-match (nth pat 2) val env)))
(cond
((nil? res) nil)
(:else (assoc res (nth pat 1) val)))))
(:else
(let ((fv (hk-force val)))
(cond
((= tag "p-int")
(if
(and (number? fv) (= fv (nth pat 1)))
env
nil))
((= tag "p-float")
(if
(and (number? fv) (= fv (nth pat 1)))
env
nil))
((= tag "p-string")
(if
(and (string? fv) (= fv (nth pat 1)))
env
nil))
((= tag "p-char")
(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
((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 pat-args) (len val-args)))
nil)
(:else
(hk-match-all
pat-args
val-args
env))))))))
((= tag "p-tuple")
(let
((items (nth pat 1)))
(cond
((not (hk-is-con-val? fv)) nil)
((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 nil))))))))))
(define
hk-match-all
(fn
(pats vals env)
(cond
((empty? pats) env)
(:else
(let
((res (hk-match (first pats) (first vals) env)))
(cond
((nil? res) nil)
(:else
(hk-match-all (rest pats) (rest vals) res))))))))
(define
hk-match-list-pat
(fn
(items val env)
(let ((fv (hk-force val)))
(cond
((empty? items)
(if
(and
(hk-is-con-val? fv)
(= (hk-val-con-name fv) "[]"))
env
nil))
(:else
(cond
((not (hk-is-con-val? fv)) nil)
((not (= (hk-val-con-name fv) ":")) nil)
(:else
(let
((args (hk-val-con-args fv)))
(let
((h (first args)) (t (first (rest args))))
(let
((res (hk-match (first items) h env)))
(cond
((nil? res) nil)
(: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` —
;; to extract a pattern AST.)
(define
hk-parse-pat-source
(fn
(src)
(let
((expr (hk-parse (str "case 0 of " src " -> 0"))))
(nth (nth (nth expr 2) 0) 1))))

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@@ -1,130 +1,507 @@
;; Haskell runtime: constructor registry.
;; lib/haskell/runtime.sx — Haskell-on-SX runtime layer
;;
;; A mutable dict keyed by constructor name (e.g. "Just", "[]") with
;; entries of shape {:arity N :type TYPE-NAME-STRING}.
;; Populated by ingesting `data` / `newtype` decls from parsed ASTs.
;; Pre-registers a small set of constructors tied to Haskell syntactic
;; forms (Bool, list, unit) — every nontrivial program depends on
;; these, and the parser/desugar pipeline emits them as (:var "True")
;; etc. without a corresponding `data` decl.
;; Covers the Haskell primitives now reachable via SX spec:
;; 1. Numeric type class helpers (Num / Integral / Fractional)
;; 2. Rational numbers (dict-based: {:_rational true :num n :den d})
;; 3. Lazy evaluation — hk-force for promises created by delay
;; 4. Char utilities (Data.Char)
;; 5. Data.Set wrappers
;; 6. Data.List utilities
;; 7. Maybe / Either ADTs
;; 8. Tuples (lists, since list->vector unreliable in sx_server)
;; 9. String helpers (words/lines/isPrefixOf/etc.)
;; 10. Show helper
(define hk-constructors (dict))
;; ===========================================================================
;; 1. Numeric type class helpers
;; ===========================================================================
(define hk-is-integer? integer?)
(define hk-is-float? float?)
(define hk-is-num? number?)
;; fromIntegral — coerce integer to Float
(define (hk-to-float x) (exact->inexact x))
;; truncate / round toward zero
(define hk-to-integer truncate)
(define hk-from-integer (fn (n) n))
;; Haskell div: floor division (rounds toward -inf)
(define
hk-register-con!
(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)))
(define
hk-con-arity
(fn
(name)
(if
(has-key? hk-constructors name)
(get (get hk-constructors name) "arity")
nil)))
(define
hk-con-type
(fn
(name)
(if
(has-key? hk-constructors name)
(get (get hk-constructors name) "type")
nil)))
(define hk-con-names (fn () (keys hk-constructors)))
;; ── Registration from AST ────────────────────────────────────
;; (:data NAME TVARS ((:con-def CNAME FIELDS) …))
(define
hk-register-data!
(fn
(data-node)
(hk-div a b)
(let
((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))
cons-list))))
((q (quotient a b)) (r (remainder a b)))
(if
(and
(not (= r 0))
(or
(and (< a 0) (> b 0))
(and (> a 0) (< b 0))))
(- q 1)
q)))
;; (:newtype NAME TVARS CNAME FIELD)
(define
hk-register-newtype!
(fn
(nt-node)
(hk-register-con!
(nth nt-node 3)
1
(nth nt-node 1))))
;; Haskell mod: result has same sign as divisor
(define hk-mod modulo)
;; Walk a decls list, registering every `data` / `newtype` decl.
;; Haskell rem: result has same sign as dividend
(define hk-rem remainder)
;; Haskell quot: truncation division
(define hk-quot quotient)
;; divMod and quotRem return pairs (lists)
(define (hk-div-mod a b) (list (hk-div a b) (hk-mod a b)))
(define (hk-quot-rem a b) (list (hk-quot a b) (hk-rem a b)))
(define (hk-abs x) (if (< x 0) (- 0 x) x))
(define
hk-register-decls!
(fn
(decls)
(for-each
(fn
(d)
(hk-signum x)
(cond
((and
(list? d)
(not (empty? d))
(= (first d) "data"))
(hk-register-data! d))
((and
(list? d)
(not (empty? d))
(= (first d) "newtype"))
(hk-register-newtype! d))
(:else nil)))
decls)))
((> x 0) 1)
((< x 0) -1)
(else 0)))
(define hk-gcd gcd)
(define hk-lcm lcm)
(define (hk-even? n) (= (modulo n 2) 0))
(define (hk-odd? n) (not (= (modulo n 2) 0)))
;; ===========================================================================
;; 2. Rational numbers (dict implementation — no built-in rational in sx_server)
;; ===========================================================================
(define
hk-register-program!
(fn
(ast)
(hk-make-rational n d)
(let
((g (gcd (hk-abs n) (hk-abs d))))
(if (< d 0) {:num (quotient (- 0 n) g) :den (quotient (- 0 d) g) :_rational true} {:num (quotient n g) :den (quotient d g) :_rational true})))
(define
(hk-rational? x)
(and (dict? x) (not (= (get x :_rational) nil))))
(define (hk-numerator r) (get r :num))
(define (hk-denominator r) (get r :den))
(define
(hk-rational-add r1 r2)
(hk-make-rational
(+
(* (hk-numerator r1) (hk-denominator r2))
(* (hk-numerator r2) (hk-denominator r1)))
(* (hk-denominator r1) (hk-denominator r2))))
(define
(hk-rational-sub r1 r2)
(hk-make-rational
(-
(* (hk-numerator r1) (hk-denominator r2))
(* (hk-numerator r2) (hk-denominator r1)))
(* (hk-denominator r1) (hk-denominator r2))))
(define
(hk-rational-mul r1 r2)
(hk-make-rational
(* (hk-numerator r1) (hk-numerator r2))
(* (hk-denominator r1) (hk-denominator r2))))
(define
(hk-rational-div r1 r2)
(hk-make-rational
(* (hk-numerator r1) (hk-denominator r2))
(* (hk-denominator r1) (hk-numerator r2))))
(define
(hk-rational-to-float r)
(exact->inexact (/ (hk-numerator r) (hk-denominator r))))
(define (hk-show-rational r) (str (hk-numerator r) "%" (hk-denominator r)))
;; ===========================================================================
;; 3. Lazy evaluation — promises (created via SX delay)
;; ===========================================================================
(define
(hk-force p)
(if
(and (dict? p) (not (= (get p :_promise) nil)))
(if (get p :forced) (get p :value) ((get p :thunk)))
p))
;; ===========================================================================
;; 4. Char utilities (Data.Char)
;; ===========================================================================
(define hk-ord char->integer)
(define hk-chr integer->char)
;; Inline ASCII predicates — char-alphabetic?/char-numeric? unreliable in sx_server
(define
(hk-is-alpha? c)
(let
((n (char->integer c)))
(or
(and (>= n 65) (<= n 90))
(and (>= n 97) (<= n 122)))))
(define
(hk-is-digit? c)
(let ((n (char->integer c))) (and (>= n 48) (<= n 57))))
(define
(hk-is-alnum? c)
(let
((n (char->integer c)))
(or
(and (>= n 48) (<= n 57))
(and (>= n 65) (<= n 90))
(and (>= n 97) (<= n 122)))))
(define
(hk-is-upper? c)
(let ((n (char->integer c))) (and (>= n 65) (<= n 90))))
(define
(hk-is-lower? c)
(let ((n (char->integer c))) (and (>= n 97) (<= n 122))))
(define
(hk-is-space? c)
(let
((n (char->integer c)))
(or
(= n 32)
(= n 9)
(= n 10)
(= n 13)
(= n 12)
(= n 11))))
(define hk-to-upper char-upcase)
(define hk-to-lower char-downcase)
;; digitToInt: '0'-'9' → 0-9, 'a'-'f'/'A'-'F' → 10-15
(define
(hk-digit-to-int c)
(let
((n (char->integer c)))
(cond
((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)))
(:else nil))))
((and (>= n 48) (<= n 57)) (- n 48))
((and (>= n 65) (<= n 70)) (- n 55))
((and (>= n 97) (<= n 102)) (- n 87))
(else (error (str "hk-digit-to-int: not a hex digit: " c))))))
;; Convenience: source → AST → desugar → register.
;; intToDigit: 0-15 → char
(define
hk-load-source!
(fn (src) (hk-register-program! (hk-core src))))
(hk-int-to-digit n)
(cond
((and (>= n 0) (<= n 9))
(integer->char (+ n 48)))
((and (>= n 10) (<= n 15))
(integer->char (+ n 87)))
(else (error (str "hk-int-to-digit: out of range: " n)))))
;; ── Built-in constructors pre-registered ─────────────────────
;; Bool — used implicitly by `if`, comparison operators.
(hk-register-con! "True" 0 "Bool")
(hk-register-con! "False" 0 "Bool")
;; List — used by list literals, range syntax, and cons operator.
(hk-register-con! "[]" 0 "List")
(hk-register-con! ":" 2 "List")
;; Unit — produced by empty parens `()`.
(hk-register-con! "()" 0 "Unit")
;; 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! "LT" 0 "Ordering")
(hk-register-con! "EQ" 0 "Ordering")
(hk-register-con! "GT" 0 "Ordering")
;; ===========================================================================
;; 5. Data.Set wrappers
;; ===========================================================================
(define (hk-set-empty) (make-set))
(define hk-set? set?)
(define hk-set-member? set-member?)
(define (hk-set-insert x s) (begin (set-add! s x) s))
(define (hk-set-delete x s) (begin (set-remove! s x) s))
(define hk-set-union set-union)
(define hk-set-intersection set-intersection)
(define hk-set-difference set-difference)
(define hk-set-from-list list->set)
(define hk-set-to-list set->list)
(define (hk-set-null? s) (= (len (set->list s)) 0))
(define (hk-set-size s) (len (set->list s)))
(define (hk-set-singleton x) (let ((s (make-set))) (set-add! s x) s))
;; ===========================================================================
;; 6. Data.List utilities
;; ===========================================================================
(define hk-head first)
(define hk-tail rest)
(define (hk-null? lst) (= (len lst) 0))
(define hk-length len)
(define
(hk-take n lst)
(if
(or (= n 0) (= (len lst) 0))
(list)
(cons (first lst) (hk-take (- n 1) (rest lst)))))
(define
(hk-drop n lst)
(if
(or (= n 0) (= (len lst) 0))
lst
(hk-drop (- n 1) (rest lst))))
(define
(hk-take-while pred lst)
(if
(or (= (len lst) 0) (not (pred (first lst))))
(list)
(cons (first lst) (hk-take-while pred (rest lst)))))
(define
(hk-drop-while pred lst)
(if
(or (= (len lst) 0) (not (pred (first lst))))
lst
(hk-drop-while pred (rest lst))))
(define
(hk-zip a b)
(if
(or (= (len a) 0) (= (len b) 0))
(list)
(cons (list (first a) (first b)) (hk-zip (rest a) (rest b)))))
(define
(hk-zip-with f a b)
(if
(or (= (len a) 0) (= (len b) 0))
(list)
(cons (f (first a) (first b)) (hk-zip-with f (rest a) (rest b)))))
(define
(hk-unzip pairs)
(list
(map (fn (p) (first p)) pairs)
(map (fn (p) (nth p 1)) pairs)))
(define
(hk-elem x lst)
(cond
((= (len lst) 0) false)
((= x (first lst)) true)
(else (hk-elem x (rest lst)))))
(define (hk-not-elem x lst) (not (hk-elem x lst)))
(define
(hk-nub lst)
(letrec
((go (fn (seen acc items) (if (= (len items) 0) (reverse acc) (let ((h (first items)) (t (rest items))) (if (hk-elem h seen) (go seen acc t) (go (cons h seen) (cons h acc) t)))))))
(go (list) (list) lst)))
(define (hk-sum lst) (reduce + 0 lst))
(define (hk-product lst) (reduce * 1 lst))
(define
(hk-maximum lst)
(reduce (fn (a b) (if (> a b) a b)) (first lst) (rest lst)))
(define
(hk-minimum lst)
(reduce (fn (a b) (if (< a b) a b)) (first lst) (rest lst)))
(define (hk-concat lsts) (reduce append (list) lsts))
(define (hk-concat-map f lst) (hk-concat (map f lst)))
(define hk-sort sort)
(define
(hk-span pred lst)
(list (hk-take-while pred lst) (hk-drop-while pred lst)))
(define (hk-break pred lst) (hk-span (fn (x) (not (pred x))) lst))
(define
(hk-foldl f acc lst)
(if
(= (len lst) 0)
acc
(hk-foldl f (f acc (first lst)) (rest lst))))
(define
(hk-foldr f z lst)
(if
(= (len lst) 0)
z
(f (first lst) (hk-foldr f z (rest lst)))))
(define
(hk-scanl f acc lst)
(if
(= (len lst) 0)
(list acc)
(cons acc (hk-scanl f (f acc (first lst)) (rest lst)))))
(define
(hk-replicate n x)
(if (= n 0) (list) (cons x (hk-replicate (- n 1) x))))
(define
(hk-intersperse sep lst)
(if
(or (= (len lst) 0) (= (len lst) 1))
lst
(cons (first lst) (cons sep (hk-intersperse sep (rest lst))))))
;; ===========================================================================
;; 7. Maybe / Either ADTs
;; ===========================================================================
(define hk-nothing {:_maybe true :_tag "nothing"})
(define (hk-just x) {:_maybe true :value x :_tag "just"})
(define (hk-is-nothing? m) (= (get m :_tag) "nothing"))
(define (hk-is-just? m) (= (get m :_tag) "just"))
(define (hk-from-just m) (get m :value))
(define (hk-from-maybe def m) (if (hk-is-nothing? m) def (hk-from-just m)))
(define
(hk-maybe def f m)
(if (hk-is-nothing? m) def (f (hk-from-just m))))
(define (hk-left x) {:value x :_either true :_tag "left"})
(define (hk-right x) {:value x :_either true :_tag "right"})
(define (hk-is-left? e) (= (get e :_tag) "left"))
(define (hk-is-right? e) (= (get e :_tag) "right"))
(define (hk-from-left e) (get e :value))
(define (hk-from-right e) (get e :value))
(define
(hk-either f g e)
(if (hk-is-left? e) (f (hk-from-left e)) (g (hk-from-right e))))
;; ===========================================================================
;; 8. Tuples (lists — list->vector unreliable in sx_server)
;; ===========================================================================
(define (hk-pair a b) (list a b))
(define hk-fst first)
(define (hk-snd t) (nth t 1))
(define (hk-triple a b c) (list a b c))
(define hk-fst3 first)
(define (hk-snd3 t) (nth t 1))
(define (hk-thd3 t) (nth t 2))
(define (hk-curry f) (fn (a) (fn (b) (f a b))))
(define (hk-uncurry f) (fn (p) (f (hk-fst p) (hk-snd p))))
;; ===========================================================================
;; 9. String helpers (Data.List / Data.Char for strings)
;; ===========================================================================
;; words: split on whitespace
(define
(hk-words s)
(letrec
((slen (len s))
(skip-ws
(fn
(i)
(if
(>= i slen)
(list)
(let
((c (substring s i (+ i 1))))
(if
(or (= c " ") (= c "\t") (= c "\n"))
(skip-ws (+ i 1))
(collect-word i (+ i 1)))))))
(collect-word
(fn
(start i)
(if
(>= i slen)
(list (substring s start i))
(let
((c (substring s i (+ i 1))))
(if
(or (= c " ") (= c "\t") (= c "\n"))
(cons (substring s start i) (skip-ws (+ i 1)))
(collect-word start (+ i 1))))))))
(skip-ws 0)))
;; unwords: join with spaces
(define
(hk-unwords lst)
(if
(= (len lst) 0)
""
(reduce (fn (a b) (str a " " b)) (first lst) (rest lst))))
;; lines: split on newline
(define
(hk-lines s)
(letrec
((slen (len s))
(go
(fn
(start i acc)
(if
(>= i slen)
(reverse (cons (substring s start i) acc))
(if
(= (substring s i (+ i 1)) "\n")
(go
(+ i 1)
(+ i 1)
(cons (substring s start i) acc))
(go start (+ i 1) acc))))))
(if (= slen 0) (list) (go 0 0 (list)))))
;; unlines: join, each with trailing newline
(define (hk-unlines lst) (reduce (fn (a b) (str a b "\n")) "" lst))
;; isPrefixOf
(define
(hk-is-prefix-of pre s)
(and (<= (len pre) (len s)) (= pre (substring s 0 (len pre)))))
;; isSuffixOf
(define
(hk-is-suffix-of suf s)
(let
((sl (len suf)) (tl (len s)))
(and (<= sl tl) (= suf (substring s (- tl sl) tl)))))
;; isInfixOf — linear scan
(define
(hk-is-infix-of pat s)
(let
((plen (len pat)) (slen (len s)))
(letrec
((go (fn (i) (if (> (+ i plen) slen) false (if (= pat (substring s i (+ i plen))) true (go (+ i 1)))))))
(if (= plen 0) true (go 0)))))
;; ===========================================================================
;; 10. Show helper
;; ===========================================================================
(define
(hk-show x)
(cond
((= x nil) "Nothing")
((= x true) "True")
((= x false) "False")
((hk-rational? x) (hk-show-rational x))
((integer? x) (str x))
((float? x) (str x))
((= (type-of x) "string") (str "\"" x "\""))
((= (type-of x) "char") (str "'" (str x) "'"))
((list? x)
(str
"["
(if
(= (len x) 0)
""
(reduce
(fn (a b) (str a "," (hk-show b)))
(hk-show (first x))
(rest x)))
"]"))
(else (str x))))

View File

@@ -1,25 +0,0 @@
{
"date": "2026-05-06",
"total_pass": 156,
"total_fail": 0,
"programs": {
"fib": {"pass": 2, "fail": 0},
"sieve": {"pass": 2, "fail": 0},
"quicksort": {"pass": 5, "fail": 0},
"nqueens": {"pass": 2, "fail": 0},
"calculator": {"pass": 5, "fail": 0},
"collatz": {"pass": 11, "fail": 0},
"palindrome": {"pass": 8, "fail": 0},
"maybe": {"pass": 12, "fail": 0},
"fizzbuzz": {"pass": 12, "fail": 0},
"anagram": {"pass": 9, "fail": 0},
"roman": {"pass": 14, "fail": 0},
"binary": {"pass": 12, "fail": 0},
"either": {"pass": 12, "fail": 0},
"primes": {"pass": 12, "fail": 0},
"zipwith": {"pass": 9, "fail": 0},
"matrix": {"pass": 8, "fail": 0},
"wordcount": {"pass": 7, "fail": 0},
"powers": {"pass": 14, "fail": 0}
}
}

View File

@@ -1,25 +0,0 @@
# Haskell-on-SX Scoreboard
Updated 2026-05-06 · Phase 6 (prelude extras + 18 programs)
| Program | Tests | Status |
|---------|-------|--------|
| fib.hs | 2/2 | ✓ |
| sieve.hs | 2/2 | ✓ |
| quicksort.hs | 5/5 | ✓ |
| nqueens.hs | 2/2 | ✓ |
| calculator.hs | 5/5 | ✓ |
| collatz.hs | 11/11 | ✓ |
| palindrome.hs | 8/8 | ✓ |
| maybe.hs | 12/12 | ✓ |
| fizzbuzz.hs | 12/12 | ✓ |
| anagram.hs | 9/9 | ✓ |
| roman.hs | 14/14 | ✓ |
| binary.hs | 12/12 | ✓ |
| either.hs | 12/12 | ✓ |
| primes.hs | 12/12 | ✓ |
| zipwith.hs | 9/9 | ✓ |
| matrix.hs | 8/8 | ✓ |
| wordcount.hs | 7/7 | ✓ |
| powers.hs | 14/14 | ✓ |
| **Total** | **156/156** | **18/18 programs** |

View File

@@ -14,7 +14,7 @@ cd "$(git rev-parse --show-toplevel)"
SX_SERVER="hosts/ocaml/_build/default/bin/sx_server.exe"
if [ ! -x "$SX_SERVER" ]; then
# Fall back to the main-repo build if we're in a worktree.
MAIN_ROOT=$(git worktree list | awk 'NR==1{print $1}')
MAIN_ROOT=$(git worktree list | head -1 | awk '{print $1}')
if [ -x "$MAIN_ROOT/$SX_SERVER" ]; then
SX_SERVER="$MAIN_ROOT/$SX_SERVER"
else
@@ -42,35 +42,25 @@ FAILED_FILES=()
for FILE in "${FILES[@]}"; do
[ -f "$FILE" ] || { echo "skip $FILE (not found)"; continue; }
# Load infer.sx only for infer/typecheck test files (it adds ~6s overhead).
INFER_LOAD=""
case "$FILE" in *infer*|*typecheck*) INFER_LOAD='(load "lib/haskell/infer.sx")' ;; esac
TMPFILE=$(mktemp)
cat > "$TMPFILE" <<EPOCHS
(epoch 1)
(load "lib/haskell/tokenizer.sx")
(load "lib/haskell/layout.sx")
(load "lib/haskell/parser.sx")
(load "lib/haskell/desugar.sx")
(load "lib/haskell/runtime.sx")
(load "lib/haskell/match.sx")
(load "lib/haskell/eval.sx")
$INFER_LOAD
(load "lib/haskell/testlib.sx")
(epoch 2)
(load "$FILE")
(epoch 3)
(eval "(list hk-test-pass hk-test-fail)")
EPOCHS
OUTPUT=$(timeout 360 "$SX_SERVER" < "$TMPFILE" 2>&1 || true)
OUTPUT=$(timeout 60 "$SX_SERVER" < "$TMPFILE" 2>&1 || true)
rm -f "$TMPFILE"
# Output format: either "(ok 3 (P F))" on one line (short result) or
# "(ok-len 3 N)\n(P F)" where the value appears on the following line.
LINE=$(echo "$OUTPUT" | awk '/^\(ok-len 3 / {getline; print; exit}')
if [ -z "$LINE" ]; then
LINE=$(echo "$OUTPUT" | { grep -E '^\(ok 3 \([0-9]+ [0-9]+\)\)' || true; } | tail -1 \
LINE=$(echo "$OUTPUT" | grep -E '^\(ok 3 \([0-9]+ [0-9]+\)\)' | tail -1 \
| sed -E 's/^\(ok 3 //; s/\)$//')
fi
if [ -z "$LINE" ]; then
@@ -92,20 +82,13 @@ EPOCHS
cat > "$TMPFILE2" <<EPOCHS
(epoch 1)
(load "lib/haskell/tokenizer.sx")
(load "lib/haskell/layout.sx")
(load "lib/haskell/parser.sx")
(load "lib/haskell/desugar.sx")
(load "lib/haskell/runtime.sx")
(load "lib/haskell/match.sx")
(load "lib/haskell/eval.sx")
$INFER_LOAD
(load "lib/haskell/testlib.sx")
(epoch 2)
(load "$FILE")
(epoch 3)
(eval "(map (fn (f) (get f \"name\")) hk-test-fails)")
EPOCHS
FAILS=$(timeout 360 "$SX_SERVER" < "$TMPFILE2" 2>&1 | grep -E '^\(ok 3 ' || true)
FAILS=$(timeout 60 "$SX_SERVER" < "$TMPFILE2" 2>&1 | grep -E '^\(ok 3 ' || true)
rm -f "$TMPFILE2"
echo " $FAILS"
elif [ "$VERBOSE" = "1" ]; then

View File

@@ -1,58 +0,0 @@
;; Shared test harness for Haskell-on-SX tests.
;; Each test file expects hk-test / hk-deep=? / counters to already be bound.
(define
hk-deep=?
(fn
(a b)
(cond
((= a b) true)
((and (dict? a) (dict? b))
(let
((ak (keys a)) (bk (keys b)))
(if
(not (= (len ak) (len bk)))
false
(every?
(fn
(k)
(and (has-key? b k) (hk-deep=? (get a k) (get b k))))
ak))))
((and (list? a) (list? b))
(if
(not (= (len a) (len b)))
false
(let
((i 0) (ok true))
(define
hk-de-loop
(fn
()
(when
(and ok (< i (len a)))
(do
(when
(not (hk-deep=? (nth a i) (nth b i)))
(set! ok false))
(set! i (+ i 1))
(hk-de-loop)))))
(hk-de-loop)
ok)))
(:else false))))
(define hk-test-pass 0)
(define hk-test-fail 0)
(define hk-test-fails (list))
(define
hk-test
(fn
(name actual expected)
(if
(hk-deep=? actual expected)
(set! hk-test-pass (+ hk-test-pass 1))
(do
(set! hk-test-fail (+ hk-test-fail 1))
(append!
hk-test-fails
{:actual actual :expected expected :name name})))))

View File

@@ -1,60 +0,0 @@
;; class.sx — tests for class/instance parsing and evaluation.
(define prog-class1 (hk-core "class MyEq a where\n myEq :: a -> a -> Bool"))
(define prog-inst1 (hk-core "instance MyEq Int where\n myEq x y = x == y"))
;; ─── class-decl AST ───────────────────────────────────────────────────────────
(define cd1 (first (nth prog-class1 1)))
(hk-test "class-decl tag" (first cd1) "class-decl")
(hk-test "class-decl name" (nth cd1 1) "MyEq")
(hk-test "class-decl tvar" (nth cd1 2) "a")
(hk-test "class-decl methods" (len (nth cd1 3)) 1)
;; ─── instance-decl AST ────────────────────────────────────────────────────────
(define id1 (first (nth prog-inst1 1)))
(hk-test "instance-decl tag" (first id1) "instance-decl")
(hk-test "instance-decl class" (nth id1 1) "MyEq")
(hk-test "instance-decl type tag" (first (nth id1 2)) "t-con")
(hk-test "instance-decl type name" (nth (nth id1 2) 1) "Int")
(hk-test "instance-decl method count" (len (nth id1 3)) 1)
;; ─── eval: instance dict is built ────────────────────────────────────────────
(define
prog-full
(hk-core
"class MyEq a where\n myEq :: a -> a -> Bool\ninstance MyEq Int where\n myEq x y = x == y"))
(define env-full (hk-eval-program prog-full))
(hk-test "instance dict in env" (has-key? env-full "dictMyEq_Int") true)
(hk-test
"instance dict has method"
(has-key? (get env-full "dictMyEq_Int") "myEq")
true)
(hk-test
"dispatch: single-arg method works"
(hk-deep-force
(hk-run
"class Describable a where\n describe :: a -> String\ninstance Describable Int where\n describe x = \"an integer\"\nmain = describe 42"))
"an integer")
(hk-test
"dispatch: second instance (Bool)"
(hk-deep-force
(hk-run
"class Describable a where\n describe :: a -> String\ninstance Describable Bool where\n describe x = \"a boolean\"\ninstance Describable Int where\n describe x = \"an integer\"\nmain = describe True"))
"a boolean")
(hk-test
"dispatch: error on unknown instance"
(guard
(e (true (>= (index-of e "No instance") 0)))
(begin
(hk-deep-force
(hk-run
"class Describable a where\n describe :: a -> String\nmain = describe 42"))
false))
true)
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

View File

@@ -1,84 +0,0 @@
;; deriving.sx — tests for deriving (Eq, Show) on ADTs.
;; ─── Show ────────────────────────────────────────────────────────────────────
(hk-test
"deriving Show: nullary constructor"
(hk-deep-force
(hk-run "data Color = Red | Green | Blue deriving (Show)\nmain = show Red"))
"Red")
(hk-test
"deriving Show: constructor with arg"
(hk-deep-force
(hk-run "data Wrapper = Wrap Int deriving (Show)\nmain = show (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)")
(hk-test
"deriving Show: second constructor"
(hk-deep-force
(hk-run
"data Color = Red | Green | Blue deriving (Show)\nmain = show Green"))
"Green")
;; ─── Eq ──────────────────────────────────────────────────────────────────────
(hk-test
"deriving Eq: same constructor"
(hk-deep-force
(hk-run
"data Color = Red | Green | Blue deriving (Eq)\nmain = show (Red == Red)"))
"True")
(hk-test
"deriving Eq: different constructors"
(hk-deep-force
(hk-run
"data Color = Red | Green | Blue deriving (Eq)\nmain = show (Red == Blue)"))
"False")
(hk-test
"deriving Eq: /= same"
(hk-deep-force
(hk-run
"data Color = Red | Green | Blue deriving (Eq)\nmain = show (Red /= Red)"))
"False")
(hk-test
"deriving Eq: /= different"
(hk-deep-force
(hk-run
"data Color = Red | Green | Blue deriving (Eq)\nmain = show (Red /= Blue)"))
"True")
;; ─── combined Eq + Show ───────────────────────────────────────────────────────
(hk-test
"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)")
(hk-test
"deriving Eq Show: eq on constructor with arg"
(hk-deep-force
(hk-run
"data Shape = Circle Int | Square Int deriving (Eq, Show)\nmain = show (Circle 3 == Circle 3)"))
"True")
(hk-test
"deriving Eq Show: different constructors with args"
(hk-deep-force
(hk-run
"data Shape = Circle Int | Square Int deriving (Eq, Show)\nmain = show (Circle 3 == Square 3)"))
"False")
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,305 +0,0 @@
;; Desugar tests — surface AST → core AST.
;; :guarded → nested :if
;; :where → :let
;; :list-comp → concatMap-based tree
(define
hk-prog
(fn (&rest decls) (list :program decls)))
;; ── Guards → if ──
(hk-test
"two-way guarded rhs"
(hk-desugar (hk-parse-top "abs x | x < 0 = - x\n | otherwise = x"))
(hk-prog
(list
:fun-clause
"abs"
(list (list :p-var "x"))
(list
:if
(list :op "<" (list :var "x") (list :int 0))
(list :neg (list :var "x"))
(list
:if
(list :var "otherwise")
(list :var "x")
(list
:app
(list :var "error")
(list :string "Non-exhaustive guards")))))))
(hk-test
"three-way guarded rhs"
(hk-desugar
(hk-parse-top "sign n | n > 0 = 1\n | n < 0 = -1\n | otherwise = 0"))
(hk-prog
(list
:fun-clause
"sign"
(list (list :p-var "n"))
(list
:if
(list :op ">" (list :var "n") (list :int 0))
(list :int 1)
(list
:if
(list :op "<" (list :var "n") (list :int 0))
(list :neg (list :int 1))
(list
:if
(list :var "otherwise")
(list :int 0)
(list
:app
(list :var "error")
(list :string "Non-exhaustive guards"))))))))
(hk-test
"case-alt guards desugared too"
(hk-desugar
(hk-parse "case x of\n Just y | y > 0 -> y\n | otherwise -> 0\n Nothing -> -1"))
(list
:case
(list :var "x")
(list
(list
:alt
(list :p-con "Just" (list (list :p-var "y")))
(list
:if
(list :op ">" (list :var "y") (list :int 0))
(list :var "y")
(list
:if
(list :var "otherwise")
(list :int 0)
(list
:app
(list :var "error")
(list :string "Non-exhaustive guards")))))
(list
:alt
(list :p-con "Nothing" (list))
(list :neg (list :int 1))))))
;; ── Where → let ──
(hk-test
"where with single binding"
(hk-desugar (hk-parse-top "f x = y\n where y = x + 1"))
(hk-prog
(list
:fun-clause
"f"
(list (list :p-var "x"))
(list
:let
(list
(list
:fun-clause
"y"
(list)
(list :op "+" (list :var "x") (list :int 1))))
(list :var "y")))))
(hk-test
"where with two bindings"
(hk-desugar
(hk-parse-top "f x = y + z\n where y = x + 1\n z = x - 1"))
(hk-prog
(list
:fun-clause
"f"
(list (list :p-var "x"))
(list
:let
(list
(list
:fun-clause
"y"
(list)
(list :op "+" (list :var "x") (list :int 1)))
(list
:fun-clause
"z"
(list)
(list :op "-" (list :var "x") (list :int 1))))
(list :op "+" (list :var "y") (list :var "z"))))))
(hk-test
"guards + where — guarded body inside let"
(hk-desugar
(hk-parse-top "f x | x > 0 = y\n | otherwise = 0\n where y = 99"))
(hk-prog
(list
:fun-clause
"f"
(list (list :p-var "x"))
(list
:let
(list (list :fun-clause "y" (list) (list :int 99)))
(list
:if
(list :op ">" (list :var "x") (list :int 0))
(list :var "y")
(list
:if
(list :var "otherwise")
(list :int 0)
(list
:app
(list :var "error")
(list :string "Non-exhaustive guards"))))))))
;; ── List comprehensions → concatMap / if / let ──
(hk-test
"list-comp: single generator"
(hk-core-expr "[x | x <- xs]")
(list
:app
(list
:app
(list :var "concatMap")
(list
:lambda
(list (list :p-var "x"))
(list :list (list (list :var "x")))))
(list :var "xs")))
(hk-test
"list-comp: generator then guard"
(hk-core-expr "[x * 2 | x <- xs, x > 0]")
(list
:app
(list
:app
(list :var "concatMap")
(list
:lambda
(list (list :p-var "x"))
(list
:if
(list :op ">" (list :var "x") (list :int 0))
(list
:list
(list (list :op "*" (list :var "x") (list :int 2))))
(list :list (list)))))
(list :var "xs")))
(hk-test
"list-comp: generator then let"
(hk-core-expr "[y | x <- xs, let y = x + 1]")
(list
:app
(list
:app
(list :var "concatMap")
(list
:lambda
(list (list :p-var "x"))
(list
:let
(list
(list
:bind
(list :p-var "y")
(list :op "+" (list :var "x") (list :int 1))))
(list :list (list (list :var "y"))))))
(list :var "xs")))
(hk-test
"list-comp: two generators (nested concatMap)"
(hk-core-expr "[(x, y) | x <- xs, y <- ys]")
(list
:app
(list
:app
(list :var "concatMap")
(list
:lambda
(list (list :p-var "x"))
(list
:app
(list
:app
(list :var "concatMap")
(list
:lambda
(list (list :p-var "y"))
(list
:list
(list
(list
:tuple
(list (list :var "x") (list :var "y")))))))
(list :var "ys"))))
(list :var "xs")))
;; ── Pass-through cases ──
(hk-test
"plain int literal unchanged"
(hk-core-expr "42")
(list :int 42))
(hk-test
"lambda + if passes through"
(hk-core-expr "\\x -> if x > 0 then x else - x")
(list
:lambda
(list (list :p-var "x"))
(list
:if
(list :op ">" (list :var "x") (list :int 0))
(list :var "x")
(list :neg (list :var "x")))))
(hk-test
"simple fun-clause (no guards/where) passes through"
(hk-desugar (hk-parse-top "id x = x"))
(hk-prog
(list
:fun-clause
"id"
(list (list :p-var "x"))
(list :var "x"))))
(hk-test
"data decl passes through"
(hk-desugar (hk-parse-top "data Maybe a = Nothing | Just a"))
(hk-prog
(list
:data
"Maybe"
(list "a")
(list
(list :con-def "Nothing" (list))
(list :con-def "Just" (list (list :t-var "a")))))))
(hk-test
"module header passes through, body desugared"
(hk-desugar
(hk-parse-top "module M where\nf x | x > 0 = 1\n | otherwise = 0"))
(list
:module
"M"
nil
(list)
(list
(list
:fun-clause
"f"
(list (list :p-var "x"))
(list
:if
(list :op ">" (list :var "x") (list :int 0))
(list :int 1)
(list
:if
(list :var "otherwise")
(list :int 0)
(list
:app
(list :var "error")
(list :string "Non-exhaustive guards"))))))))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,117 +0,0 @@
;; do-notation + stub IO monad. Desugaring is per Haskell 98 §3.14:
;; do { e ; ss } = e >> do { ss }
;; do { p <- e ; ss } = e >>= \p -> do { ss }
;; do { let ds ; ss } = let ds in do { ss }
;; do { e } = e
;; The IO type is just `("IO" payload)` for now — no real side
;; effects yet. `return`, `>>=`, `>>` are built-ins.
(define
hk-prog-val
(fn
(src name)
(hk-deep-force (get (hk-eval-program (hk-core src)) name))))
;; ── Single-statement do ──
(hk-test
"do with a single expression"
(hk-eval-expr-source "do { return 5 }")
(list "IO" 5))
(hk-test
"return wraps any expression"
(hk-eval-expr-source "return (1 + 2 * 3)")
(list "IO" 7))
;; ── Bind threads results ──
(hk-test
"single bind"
(hk-eval-expr-source
"do { x <- return 5 ; return (x + 1) }")
(list "IO" 6))
(hk-test
"two binds"
(hk-eval-expr-source
"do\n x <- return 5\n y <- return 7\n return (x + y)")
(list "IO" 12))
(hk-test
"three binds — accumulating"
(hk-eval-expr-source
"do\n a <- return 1\n b <- return 2\n c <- return 3\n return (a + b + c)")
(list "IO" 6))
;; ── Mixing >> and >>= ──
(hk-test
">> sequencing — last wins"
(hk-eval-expr-source
"do\n return 1\n return 2\n return 3")
(list "IO" 3))
(hk-test
">> then >>= — last bind wins"
(hk-eval-expr-source
"do\n return 99\n x <- return 5\n return x")
(list "IO" 5))
;; ── do-let ──
(hk-test
"do-let single binding"
(hk-eval-expr-source
"do\n let x = 3\n return (x * 2)")
(list "IO" 6))
(hk-test
"do-let multi-bind, used after"
(hk-eval-expr-source
"do\n let x = 4\n y = 5\n return (x * y)")
(list "IO" 20))
(hk-test
"do-let interleaved with bind"
(hk-eval-expr-source
"do\n x <- return 10\n let y = x + 1\n return (x * y)")
(list "IO" 110))
;; ── Bind + pattern ──
(hk-test
"bind to constructor pattern"
(hk-eval-expr-source
"do\n Just x <- return (Just 7)\n return (x + 100)")
(list "IO" 107))
(hk-test
"bind to tuple pattern"
(hk-eval-expr-source
"do\n (a, b) <- return (3, 4)\n return (a * b)")
(list "IO" 12))
;; ── User-defined IO functions ──
(hk-test
"do inside top-level fun"
(hk-prog-val
"addM x y = do\n a <- return x\n b <- return y\n return (a + b)\nresult = addM 5 6"
"result")
(list "IO" 11))
(hk-test
"nested do"
(hk-eval-expr-source
"do\n x <- do { y <- return 3 ; return (y + 1) }\n return (x * 2)")
(list "IO" 8))
;; ── (>>=) and (>>) used directly as functions ──
(hk-test
">>= used directly"
(hk-eval-expr-source
"(return 4) >>= (\\x -> return (x + 100))")
(list "IO" 104))
(hk-test
">> used directly"
(hk-eval-expr-source
"(return 1) >> (return 2)")
(list "IO" 2))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,278 +0,0 @@
;; Strict evaluator tests. Each test parses, desugars, and evaluates
;; either an expression (hk-eval-expr-source) or a full program
;; (hk-eval-program → look up a named value).
(define
hk-prog-val
(fn
(src name)
(hk-deep-force (get (hk-eval-program (hk-core src)) name))))
;; ── Literals ──
(hk-test "int literal" (hk-eval-expr-source "42") 42)
(hk-test "float literal" (hk-eval-expr-source "3.14") 3.14)
(hk-test "string literal" (hk-eval-expr-source "\"hi\"") "hi")
(hk-test "char literal" (hk-eval-expr-source "'a'") "a")
(hk-test "negative literal" (hk-eval-expr-source "- 5") -5)
;; ── Arithmetic ──
(hk-test "addition" (hk-eval-expr-source "1 + 2") 3)
(hk-test
"precedence"
(hk-eval-expr-source "1 + 2 * 3")
7)
(hk-test
"parens override precedence"
(hk-eval-expr-source "(1 + 2) * 3")
9)
(hk-test
"subtraction left-assoc"
(hk-eval-expr-source "10 - 3 - 2")
5)
;; ── Comparison + Bool ──
(hk-test
"less than is True"
(hk-eval-expr-source "3 < 5")
(list "True"))
(hk-test
"equality is False"
(hk-eval-expr-source "1 == 2")
(list "False"))
(hk-test
"&& shortcuts"
(hk-eval-expr-source "(1 == 1) && (2 == 2)")
(list "True"))
;; ── if / otherwise ──
(hk-test
"if True"
(hk-eval-expr-source "if True then 1 else 2")
1)
(hk-test
"if comparison branch"
(hk-eval-expr-source "if 5 > 3 then \"yes\" else \"no\"")
"yes")
(hk-test "otherwise is True" (hk-eval-expr-source "otherwise") (list "True"))
;; ── let ──
(hk-test
"let single binding"
(hk-eval-expr-source "let x = 5 in x + 1")
6)
(hk-test
"let two bindings"
(hk-eval-expr-source "let x = 1; y = 2 in x + y")
3)
(hk-test
"let recursive: factorial 5"
(hk-eval-expr-source
"let f n = if n == 0 then 1 else n * f (n - 1) in f 5")
120)
;; ── Lambdas ──
(hk-test
"lambda apply"
(hk-eval-expr-source "(\\x -> x + 1) 5")
6)
(hk-test
"lambda multi-arg"
(hk-eval-expr-source "(\\x y -> x * y) 3 4")
12)
(hk-test
"lambda with constructor pattern"
(hk-eval-expr-source "(\\(Just x) -> x + 1) (Just 7)")
8)
;; ── Constructors ──
(hk-test
"0-arity constructor"
(hk-eval-expr-source "Nothing")
(list "Nothing"))
(hk-test
"1-arity constructor applied"
(hk-eval-expr-source "Just 5")
(list "Just" 5))
(hk-test
"True / False as bools"
(hk-eval-expr-source "True")
(list "True"))
;; ── case ──
(hk-test
"case Just"
(hk-eval-expr-source
"case Just 7 of Just x -> x ; Nothing -> 0")
7)
(hk-test
"case Nothing"
(hk-eval-expr-source
"case Nothing of Just x -> x ; Nothing -> 99")
99)
(hk-test
"case literal pattern"
(hk-eval-expr-source
"case 0 of 0 -> \"zero\" ; n -> \"other\"")
"zero")
(hk-test
"case tuple"
(hk-eval-expr-source
"case (1, 2) of (a, b) -> a + b")
3)
(hk-test
"case wildcard fallback"
(hk-eval-expr-source
"case 5 of 0 -> \"z\" ; _ -> \"nz\"")
"nz")
;; ── List literals + cons ──
(hk-test
"list literal as cons spine"
(hk-eval-expr-source "[1, 2, 3]")
(list ":" 1 (list ":" 2 (list ":" 3 (list "[]")))))
(hk-test
"empty list literal"
(hk-eval-expr-source "[]")
(list "[]"))
(hk-test
"cons via :"
(hk-eval-expr-source "1 : []")
(list ":" 1 (list "[]")))
(hk-test
"++ concatenates lists"
(hk-eval-expr-source "[1, 2] ++ [3]")
(list ":" 1 (list ":" 2 (list ":" 3 (list "[]")))))
;; ── Tuples ──
(hk-test
"2-tuple"
(hk-eval-expr-source "(1, 2)")
(list "Tuple" 1 2))
(hk-test
"3-tuple"
(hk-eval-expr-source "(\"a\", 5, True)")
(list "Tuple" "a" 5 (list "True")))
;; ── Sections ──
(hk-test
"right section (+ 1) applied"
(hk-eval-expr-source "(+ 1) 5")
6)
(hk-test
"left section (10 -) applied"
(hk-eval-expr-source "(10 -) 4")
6)
;; ── Multi-clause top-level functions ──
(hk-test
"multi-clause: factorial"
(hk-prog-val
"fact 0 = 1\nfact n = n * fact (n - 1)\nresult = fact 6"
"result")
720)
(hk-test
"multi-clause: list length via cons pattern"
(hk-prog-val
"len [] = 0\nlen (x:xs) = 1 + len xs\nresult = len [10, 20, 30, 40]"
"result")
4)
(hk-test
"multi-clause: Maybe handler"
(hk-prog-val
"fromMaybe d Nothing = d\nfromMaybe _ (Just x) = x\nresult = fromMaybe 0 (Just 9)"
"result")
9)
(hk-test
"multi-clause: Maybe with default"
(hk-prog-val
"fromMaybe d Nothing = d\nfromMaybe _ (Just x) = x\nresult = fromMaybe 0 Nothing"
"result")
0)
;; ── User-defined data and matching ──
(hk-test
"custom data with pattern match"
(hk-prog-val
"data Color = Red | Green | Blue\nname Red = \"red\"\nname Green = \"green\"\nname Blue = \"blue\"\nresult = name Green"
"result")
"green")
(hk-test
"custom binary tree height"
(hk-prog-val
"data Tree = Leaf | Node Tree Tree\nh Leaf = 0\nh (Node l r) = 1 + max (h l) (h r)\nmax a b = if a > b then a else b\nresult = h (Node (Node Leaf Leaf) Leaf)"
"result")
2)
;; ── Currying ──
(hk-test
"partial application"
(hk-prog-val
"add x y = x + y\nadd5 = add 5\nresult = add5 7"
"result")
12)
;; ── Higher-order ──
(hk-test
"higher-order: function as arg"
(hk-prog-val
"twice f x = f (f x)\ninc x = x + 1\nresult = twice inc 10"
"result")
12)
;; ── Error built-in ──
(hk-test
"error short-circuits via if"
(hk-eval-expr-source
"if True then 1 else error \"unreachable\"")
1)
;; ── Laziness: app args evaluate only when forced ──
(hk-test
"second arg never forced"
(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")
99)
(hk-test
"constructor argument is lazy under wildcard pattern"
(hk-eval-expr-source
"case Just (error \"deeply\") of Just _ -> 7 ; Nothing -> 0")
7)
(hk-test
"lazy: const drops its second argument"
(hk-prog-val
"const x y = x\nresult = const 5 (error \"boom\")"
"result")
5)
(hk-test
"lazy: head ignores tail"
(hk-prog-val
"myHead (x:_) = x\nresult = myHead (1 : (error \"tail\") : [])"
"result")
1)
(hk-test
"lazy: Just on undefined evaluates only on force"
(hk-prog-val
"wrapped = Just (error \"oh no\")\nresult = case wrapped of Just _ -> True ; Nothing -> False"
"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}

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@@ -1,181 +0,0 @@
;; infer.sx tests — Algorithm W: literals, vars, lambdas, application, let,
;; if, operators, tuples, lists, let-polymorphism.
(define hk-t (fn (src expected)
(hk-test (str "infer: " src) (hk-infer-type src) expected)))
;; ─── Literals ────────────────────────────────────────────────────────────────
(hk-t "1" "Int")
(hk-t "3.14" "Float")
(hk-t "\"hello\"" "String")
(hk-t "'x'" "Char")
(hk-t "True" "Bool")
(hk-t "False" "Bool")
;; ─── Arithmetic and boolean operators ────────────────────────────────────────
(hk-t "1 + 2" "Int")
(hk-t "3 * 4" "Int")
(hk-t "10 - 3" "Int")
(hk-t "True && False" "Bool")
(hk-t "True || False" "Bool")
(hk-t "not True" "Bool")
(hk-t "1 == 1" "Bool")
(hk-t "1 < 2" "Bool")
;; ─── Lambda ───────────────────────────────────────────────────────────────────
;; \x -> x (identity) should get t1 -> t1
(hk-test "infer: identity lambda" (hk-infer-type "\\x -> x") "t1 -> t1")
;; \x -> x + 1 : Int -> Int
(hk-test "infer: lambda add" (hk-infer-type "\\x -> x + 1") "Int -> Int")
;; \x -> not x : Bool -> Bool
(hk-test "infer: lambda not" (hk-infer-type "\\x -> not x") "Bool -> Bool")
;; \x y -> x + y : Int -> Int -> Int
(hk-test "infer: two-arg lambda" (hk-infer-type "\\x -> \\y -> x + y") "Int -> Int -> Int")
;; ─── Application ─────────────────────────────────────────────────────────────
(hk-t "not True" "Bool")
(hk-t "negate 1" "Int")
;; ─── If-then-else ─────────────────────────────────────────────────────────────
(hk-t "if True then 1 else 2" "Int")
(hk-t "if 1 == 2 then True else False" "Bool")
;; ─── Let bindings ─────────────────────────────────────────────────────────────
;; let x = 1 in x + 2
(hk-t "let x = 1 in x + 2" "Int")
;; let f x = x + 1 in f 5
(hk-t "let f x = x + 1 in f 5" "Int")
;; let-polymorphism: let id x = x in id 1
(hk-t "let id x = x in id 1" "Int")
;; ─── Tuples ───────────────────────────────────────────────────────────────────
(hk-t "(1, True)" "(Int, Bool)")
(hk-t "(1, 2, 3)" "(Int, Int, Int)")
;; ─── Lists ───────────────────────────────────────────────────────────────────
(hk-t "[1, 2, 3]" "[Int]")
(hk-t "[True, False]" "[Bool]")
;; ─── Polymorphic list functions ───────────────────────────────────────────────
(hk-t "length [1, 2, 3]" "Int")
(hk-t "null []" "Bool")
(hk-t "head [1, 2, 3]" "Int")
;; ─── hk-expr->brief ──────────────────────────────────────────────────────────
(hk-test "brief var" (hk-expr->brief (list "var" "x")) "x")
(hk-test "brief con" (hk-expr->brief (list "con" "Just")) "Just")
(hk-test "brief int" (hk-expr->brief (list "int" 42)) "42")
(hk-test "brief app" (hk-expr->brief (list "app" (list "var" "f") (list "var" "x"))) "(f x)")
(hk-test "brief op" (hk-expr->brief (list "op" "+" (list "int" 1) (list "int" 2))) "(1 + 2)")
(hk-test "brief lambda" (hk-expr->brief (list "lambda" (list) (list "var" "x"))) "(\\ ...)")
(hk-test "brief loc" (hk-expr->brief (list "loc" 3 7 (list "var" "x"))) "x")
;; ─── Type error messages ─────────────────────────────────────────────────────
;; Helper: catch the error and check it contains a substring.
(define hk-str-has? (fn (s sub) (>= (index-of s sub) 0)))
(define hk-te
(fn (label src sub)
(hk-test label
(guard (e (#t (hk-str-has? e sub)))
(begin (hk-infer-type src) false))
true)))
;; Unbound variable error includes the variable name.
(hk-te "error unbound name" "foo + 1" "foo")
(hk-te "error unbound unk" "unknown" "unknown")
;; Unification error mentions the conflicting types.
(hk-te "error unify int-bool-1" "1 + True" "Int")
(hk-te "error unify int-bool-2" "1 + True" "Bool")
;; ─── Loc node: passes through to inner (position decorates outer context) ────
(define hk-loc-err-msg
(fn ()
(guard (e (#t e))
(begin
(hk-reset-fresh)
(hk-w (hk-type-env0) (list "loc" 5 10 (list "var" "mystery")))
"no-error"))))
(hk-test "loc passes through to var error"
(hk-str-has? (hk-loc-err-msg) "mystery")
true)
;; ─── hk-infer-decl ───────────────────────────────────────────────────────────
;; Returns ("ok" name type) | ("err" msg)
(define hk-env0-t (hk-type-env0))
(define prog1 (hk-core "f x = x + 1"))
(define decl1 (first (nth prog1 1)))
(define res1 (hk-infer-decl hk-env0-t decl1))
(hk-test "decl result tag" (first res1) "ok")
(hk-test "decl result name" (nth res1 1) "f")
(hk-test "decl result type" (nth res1 2) "Int -> Int")
;; Error decl: result is ("err" "in 'g': ...")
(define prog2 (hk-core "g x = x + True"))
(define decl2 (first (nth prog2 1)))
(define res2 (hk-infer-decl hk-env0-t decl2))
(hk-test "decl error tag" (first res2) "err")
(hk-test "decl error has g" (hk-str-has? (nth res2 1) "g") true)
(hk-test "decl error has msg" (hk-str-has? (nth res2 1) "unify") true)
;; ─── hk-infer-prog ───────────────────────────────────────────────────────────
;; Returns list of ("ok"/"err" ...) tagged results.
(define prog3 (hk-core "double x = x + x\ntwice f x = f (f x)"))
(define results3 (hk-infer-prog prog3 hk-env0-t))
;; results3 = (("ok" "double" "Int -> Int") ("ok" "twice" "..."))
(hk-test "infer-prog count" (len results3) 2)
(hk-test "infer-prog double" (nth (nth results3 0) 2) "Int -> Int")
(hk-test "infer-prog twice" (nth (nth results3 1) 2) "(t3 -> t3) -> t3 -> t3")
(hk-t "let id x = x in id 1" "Int")
(hk-t "let id x = x in id True" "Bool")
(hk-t "let id x = x in (id 1, id True)" "(Int, Bool)")
(hk-t "let const x y = x in (const 1 True, const True 1)" "(Int, Bool)")
(hk-t "let f x = x in let g y = f y in (g 1, g True)" "(Int, Bool)")
(hk-t "let twice f x = f (f x) in twice (\x -> x + 1) 5" "Int")
(hk-t "not (not True)" "Bool")
(hk-t "negate (negate 1)" "Int")
(hk-t "\\x -> \\y -> x && y" "Bool -> Bool -> Bool")
(hk-t "\\x -> x == 1" "Int -> Bool")
(hk-t "let x = True in if x then 1 else 0" "Int")
(hk-t "let f x = not x in f True" "Bool")
(hk-t "let f x = (x, x + 1) in f 5" "(Int, Int)")
(hk-t "let x = 1 in let y = 2 in x + y" "Int")
(hk-t "let f x = x + 1 in f (f 5)" "Int")
(hk-t "if 1 < 2 then True else False" "Bool")
(hk-t "if True then 1 + 1 else 2 + 2" "Int")
(hk-t "(1 + 2, True && False)" "(Int, Bool)")
(hk-t "(1 == 1, 2 < 3)" "(Bool, Bool)")
(hk-t "length [True, False]" "Int")
(hk-t "null [1]" "Bool")
(hk-t "[True]" "[Bool]")
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,137 +0,0 @@
;; Infinite structures + Prelude tests. The lazy `:` operator builds
;; cons cells with thunked head/tail so recursive list-defining
;; functions terminate when only a finite prefix is consumed.
(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-eval-list
(fn (src) (hk-as-list (hk-eval-expr-source src))))
;; ── Prelude basics ──
(hk-test "head of literal" (hk-eval-expr-source "head [1, 2, 3]") 1)
(hk-test
"tail of literal"
(hk-eval-list "tail [1, 2, 3]")
(list 2 3))
(hk-test "length" (hk-eval-expr-source "length [10, 20, 30, 40]") 4)
(hk-test "length empty" (hk-eval-expr-source "length []") 0)
(hk-test
"map with section"
(hk-eval-list "map (+ 1) [1, 2, 3]")
(list 2 3 4))
(hk-test
"filter"
(hk-eval-list "filter (\\x -> x > 2) [1, 2, 3, 4, 5]")
(list 3 4 5))
(hk-test
"drop"
(hk-eval-list "drop 2 [10, 20, 30, 40]")
(list 30 40))
(hk-test "fst" (hk-eval-expr-source "fst (7, 9)") 7)
(hk-test "snd" (hk-eval-expr-source "snd (7, 9)") 9)
(hk-test
"zipWith"
(hk-eval-list "zipWith plus [1, 2, 3] [10, 20, 30]")
(list 11 22 33))
;; ── Infinite structures ──
(hk-test
"take from repeat"
(hk-eval-list "take 5 (repeat 7)")
(list 7 7 7 7 7))
(hk-test
"take 0 from repeat returns empty"
(hk-eval-list "take 0 (repeat 7)")
(list))
(hk-test
"take from iterate"
(hk-eval-list "take 5 (iterate (\\x -> x + 1) 0)")
(list 0 1 2 3 4))
(hk-test
"iterate with multiplication"
(hk-eval-list "take 4 (iterate (\\x -> x * 2) 1)")
(list 1 2 4 8))
(hk-test
"head of repeat"
(hk-eval-expr-source "head (repeat 99)")
99)
;; ── Fibonacci stream ──
(hk-test
"first 10 Fibonacci numbers"
(hk-eval-list "take 10 fibs")
(list 0 1 1 2 3 5 8 13 21 34))
(hk-test
"fib at position 8"
(hk-eval-expr-source "head (drop 8 fibs)")
21)
;; ── Building infinite structures in user code ──
(hk-test
"user-defined infinite ones"
(hk-prog-val
"ones = 1 : ones\nresult = take 6 ones"
"result")
(list ":" 1 (list ":" 1 (list ":" 1 (list ":" 1 (list ":" 1 (list ":" 1 (list "[]"))))))))
(hk-test
"user-defined nats"
(hk-prog-val
"nats = naturalsFrom 1\nnaturalsFrom n = n : naturalsFrom (n + 1)\nresult = take 5 nats"
"result")
(list ":" 1 (list ":" 2 (list ":" 3 (list ":" 4 (list ":" 5 (list "[]")))))))
;; ── Range syntax ──
(hk-test
"finite range [1..5]"
(hk-eval-list "[1..5]")
(list 1 2 3 4 5))
(hk-test
"empty range when from > to"
(hk-eval-list "[10..3]")
(list))
(hk-test
"stepped range"
(hk-eval-list "[1, 3..10]")
(list 1 3 5 7 9))
(hk-test
"open range — head"
(hk-eval-expr-source "head [1..]")
1)
(hk-test
"open range — drop then head"
(hk-eval-expr-source "head (drop 99 [1..])")
100)
(hk-test
"open range — take 5"
(hk-eval-list "take 5 [10..]")
(list 10 11 12 13 14))
;; ── Composing Prelude functions ──
(hk-test
"map then filter"
(hk-eval-list
"filter (\\x -> x > 5) (map (\\x -> x * 2) [1, 2, 3, 4])")
(list 6 8))
(hk-test
"sum-via-foldless"
(hk-prog-val
"mySum [] = 0\nmySum (x:xs) = x + mySum xs\nresult = mySum (take 5 (iterate (\\x -> x + 1) 1))"
"result")
15)
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,85 +0,0 @@
;; io-input.sx — tests for getLine, getContents, readFile, writeFile.
(hk-test
"getLine reads single line"
(hk-run-io-with-input "main = getLine >>= putStrLn" (list "hello"))
(list "hello"))
(hk-test
"getLine reads two lines"
(hk-run-io-with-input
"main = do { line1 <- getLine; line2 <- getLine; putStrLn line1; putStrLn line2 }"
(list "first" "second"))
(list "first" "second"))
(hk-test
"getLine bind in layout do"
(hk-run-io-with-input
"main = do\n line <- getLine\n putStrLn line"
(list "world"))
(list "world"))
(hk-test
"getLine echo with prefix"
(hk-run-io-with-input
"main = do\n line <- getLine\n putStrLn (\"Got: \" ++ line)"
(list "test"))
(list "Got: test"))
(hk-test
"getContents reads all lines joined"
(hk-run-io-with-input
"main = getContents >>= putStr"
(list "line1" "line2" "line3"))
(list "line1\nline2\nline3"))
(hk-test
"getContents empty stdin"
(hk-run-io-with-input "main = getContents >>= putStr" (list))
(list ""))
(hk-test
"readFile reads pre-loaded content"
(begin
(set! hk-vfs (dict))
(dict-set! hk-vfs "hello.txt" "Hello, World!")
(hk-run-io "main = readFile \"hello.txt\" >>= putStrLn"))
(list "Hello, World!"))
(hk-test
"writeFile creates file"
(begin
(set! hk-vfs (dict))
(hk-run-io "main = writeFile \"out.txt\" \"written content\"")
(get hk-vfs "out.txt"))
"written content")
(hk-test
"writeFile then readFile roundtrip"
(begin
(set! hk-vfs (dict))
(hk-run-io
"main = do { writeFile \"f.txt\" \"round trip\"; readFile \"f.txt\" >>= putStrLn }"))
(list "round trip"))
(hk-test
"readFile error on missing file"
(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
"getLine then writeFile combined"
(begin
(set! hk-vfs (dict))
(hk-run-io-with-input
"main = do\n line <- getLine\n writeFile \"cap.txt\" line"
(list "captured"))
(get hk-vfs "cap.txt"))
"captured")
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,245 +0,0 @@
;; Haskell layout-rule tests. hk-tokenizer + hk-layout produce a
;; virtual-brace-annotated stream; these tests cover the algorithm
;; from Haskell 98 §10.3 plus the pragmatic let/in single-line rule.
;; Convenience — tokenize, run layout, strip eof, keep :type/:value.
(define
hk-lay
(fn
(src)
(map
(fn (tok) {:value (get tok "value") :type (get tok "type")})
(filter
(fn (tok) (not (= (get tok "type") "eof")))
(hk-layout (hk-tokenize src))))))
;; ── 1. Basics ──
(hk-test
"empty input produces empty module { }"
(hk-lay "")
(list
{:value "{" :type "vlbrace"}
{:value "}" :type "vrbrace"}))
(hk-test
"single token → module open+close"
(hk-lay "foo")
(list
{:value "{" :type "vlbrace"}
{:value "foo" :type "varid"}
{:value "}" :type "vrbrace"}))
(hk-test
"two top-level decls get vsemi between"
(hk-lay "foo = 1\nbar = 2")
(list
{:value "{" :type "vlbrace"}
{:value "foo" :type "varid"}
{:value "=" :type "reservedop"}
{:value 1 :type "integer"}
{:value ";" :type "vsemi"}
{:value "bar" :type "varid"}
{:value "=" :type "reservedop"}
{:value 2 :type "integer"}
{:value "}" :type "vrbrace"}))
;; ── 2. Layout keywords — do / let / where / of ──
(hk-test
"do block with two stmts"
(hk-lay "f = do\n x\n y")
(list
{:value "{" :type "vlbrace"}
{:value "f" :type "varid"}
{:value "=" :type "reservedop"}
{:value "do" :type "reserved"}
{:value "{" :type "vlbrace"}
{:value "x" :type "varid"}
{:value ";" :type "vsemi"}
{:value "y" :type "varid"}
{:value "}" :type "vrbrace"}
{:value "}" :type "vrbrace"}))
(hk-test
"single-line let ... in"
(hk-lay "let x = 1 in x")
(list
{:value "{" :type "vlbrace"}
{:value "let" :type "reserved"}
{:value "{" :type "vlbrace"}
{:value "x" :type "varid"}
{:value "=" :type "reservedop"}
{:value 1 :type "integer"}
{:value "}" :type "vrbrace"}
{:value "in" :type "reserved"}
{:value "x" :type "varid"}
{:value "}" :type "vrbrace"}))
(hk-test
"where block with two bindings"
(hk-lay "f = g\n where\n g = 1\n h = 2")
(list
{:value "{" :type "vlbrace"}
{:value "f" :type "varid"}
{:value "=" :type "reservedop"}
{:value "g" :type "varid"}
{:value "where" :type "reserved"}
{:value "{" :type "vlbrace"}
{:value "g" :type "varid"}
{:value "=" :type "reservedop"}
{:value 1 :type "integer"}
{:value ";" :type "vsemi"}
{:value "h" :type "varid"}
{:value "=" :type "reservedop"}
{:value 2 :type "integer"}
{:value "}" :type "vrbrace"}
{:value "}" :type "vrbrace"}))
(hk-test
"case … of with arms"
(hk-lay "f x = case x of\n Just y -> y\n Nothing -> 0")
(list
{:value "{" :type "vlbrace"}
{:value "f" :type "varid"}
{:value "x" :type "varid"}
{:value "=" :type "reservedop"}
{:value "case" :type "reserved"}
{:value "x" :type "varid"}
{:value "of" :type "reserved"}
{:value "{" :type "vlbrace"}
{:value "Just" :type "conid"}
{:value "y" :type "varid"}
{:value "->" :type "reservedop"}
{:value "y" :type "varid"}
{:value ";" :type "vsemi"}
{:value "Nothing" :type "conid"}
{:value "->" :type "reservedop"}
{:value 0 :type "integer"}
{:value "}" :type "vrbrace"}
{:value "}" :type "vrbrace"}))
;; ── 3. Explicit braces disable layout ──
(hk-test
"explicit braces — no implicit vlbrace/vsemi/vrbrace inside"
(hk-lay "do { x ; y }")
(list
{:value "{" :type "vlbrace"}
{:value "do" :type "reserved"}
{:value "{" :type "lbrace"}
{:value "x" :type "varid"}
{:value ";" :type "semi"}
{:value "y" :type "varid"}
{:value "}" :type "rbrace"}
{:value "}" :type "vrbrace"}))
;; ── 4. Dedent closes nested blocks ──
(hk-test
"dedent back to module level closes do block"
(hk-lay "f = do\n x\n y\ng = 2")
(list
{:value "{" :type "vlbrace"}
{:value "f" :type "varid"}
{:value "=" :type "reservedop"}
{:value "do" :type "reserved"}
{:value "{" :type "vlbrace"}
{:value "x" :type "varid"}
{:value ";" :type "vsemi"}
{:value "y" :type "varid"}
{:value "}" :type "vrbrace"}
{:value ";" :type "vsemi"}
{:value "g" :type "varid"}
{:value "=" :type "reservedop"}
{:value 2 :type "integer"}
{:value "}" :type "vrbrace"}))
(hk-test
"dedent closes inner let, emits vsemi at outer do level"
(hk-lay "main = do\n let x = 1\n print x")
(list
{:value "{" :type "vlbrace"}
{:value "main" :type "varid"}
{:value "=" :type "reservedop"}
{:value "do" :type "reserved"}
{:value "{" :type "vlbrace"}
{:value "let" :type "reserved"}
{:value "{" :type "vlbrace"}
{:value "x" :type "varid"}
{:value "=" :type "reservedop"}
{:value 1 :type "integer"}
{:value "}" :type "vrbrace"}
{:value ";" :type "vsemi"}
{:value "print" :type "varid"}
{:value "x" :type "varid"}
{:value "}" :type "vrbrace"}
{:value "}" :type "vrbrace"}))
;; ── 5. Module header skips outer implicit open ──
(hk-test
"module M where — only where opens a block"
(hk-lay "module M where\n f = 1")
(list
{:value "module" :type "reserved"}
{:value "M" :type "conid"}
{:value "where" :type "reserved"}
{:value "{" :type "vlbrace"}
{:value "f" :type "varid"}
{:value "=" :type "reservedop"}
{:value 1 :type "integer"}
{:value "}" :type "vrbrace"}))
;; ── 6. Newlines are stripped ──
(hk-test
"newline tokens do not appear in output"
(let
((toks (hk-layout (hk-tokenize "foo\nbar"))))
(every?
(fn (t) (not (= (get t "type") "newline")))
toks))
true)
;; ── 7. Continuation — deeper indent does NOT emit vsemi ──
(hk-test
"line continuation (deeper indent) just merges"
(hk-lay "foo = 1 +\n 2")
(list
{:value "{" :type "vlbrace"}
{:value "foo" :type "varid"}
{:value "=" :type "reservedop"}
{:value 1 :type "integer"}
{:value "+" :type "varsym"}
{:value 2 :type "integer"}
{:value "}" :type "vrbrace"}))
;; ── 8. Stack closing at EOF ──
(hk-test
"EOF inside nested do closes all implicit blocks"
(let
((toks (hk-lay "main = do\n do\n x")))
(let
((n (len toks)))
(list
(get (nth toks (- n 1)) "type")
(get (nth toks (- n 2)) "type")
(get (nth toks (- n 3)) "type"))))
(list "vrbrace" "vrbrace" "vrbrace"))
;; ── 9. Qualified-newline: x at deeper col than stack top does nothing ──
(hk-test
"mixed where + do"
(hk-lay "f = do\n x\n where\n x = 1")
(list
{:value "{" :type "vlbrace"}
{:value "f" :type "varid"}
{:value "=" :type "reservedop"}
{:value "do" :type "reserved"}
{:value "{" :type "vlbrace"}
{:value "x" :type "varid"}
{:value "}" :type "vrbrace"}
{:value "where" :type "reserved"}
{:value "{" :type "vlbrace"}
{:value "x" :type "varid"}
{:value "=" :type "reservedop"}
{:value 1 :type "integer"}
{:value "}" :type "vrbrace"}
{:value "}" :type "vrbrace"}))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,256 +0,0 @@
;; Pattern-matcher tests. The matcher takes (pat val env) and returns
;; an extended env dict on success, or `nil` on failure. Constructor
;; values are tagged lists (con-name first); tuples use the "Tuple"
;; tag; lists use chained `:` cons with `[]` nil.
;; ── Atomic patterns ──
(hk-test
"wildcard always matches"
(hk-match (list :p-wild) 42 (dict))
(dict))
(hk-test
"var binds value"
(hk-match (list :p-var "x") 42 (dict))
{:x 42})
(hk-test
"var preserves prior env"
(hk-match (list :p-var "y") 7 {:x 1})
{:x 1 :y 7})
(hk-test
"int literal matches equal"
(hk-match (list :p-int 5) 5 (dict))
(dict))
(hk-test
"int literal fails on mismatch"
(hk-match (list :p-int 5) 6 (dict))
nil)
(hk-test
"negative int literal matches"
(hk-match (list :p-int -3) -3 (dict))
(dict))
(hk-test
"string literal matches"
(hk-match (list :p-string "hi") "hi" (dict))
(dict))
(hk-test
"string literal fails"
(hk-match (list :p-string "hi") "bye" (dict))
nil)
(hk-test
"char literal matches"
(hk-match (list :p-char "a") "a" (dict))
(dict))
;; ── Constructor patterns ──
(hk-test
"0-arity con matches"
(hk-match
(list :p-con "Nothing" (list))
(hk-mk-con "Nothing" (list))
(dict))
(dict))
(hk-test
"1-arity con matches and binds"
(hk-match
(list :p-con "Just" (list (list :p-var "y")))
(hk-mk-con "Just" (list 9))
(dict))
{:y 9})
(hk-test
"con name mismatch fails"
(hk-match
(list :p-con "Just" (list (list :p-var "y")))
(hk-mk-con "Nothing" (list))
(dict))
nil)
(hk-test
"con arity mismatch fails"
(hk-match
(list :p-con "Pair" (list (list :p-var "a") (list :p-var "b")))
(hk-mk-con "Pair" (list 1))
(dict))
nil)
(hk-test
"nested con: Just (Just x)"
(hk-match
(list
:p-con
"Just"
(list
(list
:p-con
"Just"
(list (list :p-var "x")))))
(hk-mk-con "Just" (list (hk-mk-con "Just" (list 42))))
(dict))
{:x 42})
;; ── Tuple patterns ──
(hk-test
"2-tuple matches and binds"
(hk-match
(list
:p-tuple
(list (list :p-var "a") (list :p-var "b")))
(hk-mk-tuple (list 10 20))
(dict))
{:a 10 :b 20})
(hk-test
"tuple arity mismatch fails"
(hk-match
(list
:p-tuple
(list (list :p-var "a") (list :p-var "b")))
(hk-mk-tuple (list 10 20 30))
(dict))
nil)
;; ── List patterns ──
(hk-test
"[] pattern matches empty list"
(hk-match (list :p-list (list)) (hk-mk-nil) (dict))
(dict))
(hk-test
"[] pattern fails on non-empty"
(hk-match (list :p-list (list)) (hk-mk-list (list 1)) (dict))
nil)
(hk-test
"[a] pattern matches singleton"
(hk-match
(list :p-list (list (list :p-var "a")))
(hk-mk-list (list 7))
(dict))
{:a 7})
(hk-test
"[a, b] pattern matches pair-list and binds"
(hk-match
(list
:p-list
(list (list :p-var "a") (list :p-var "b")))
(hk-mk-list (list 1 2))
(dict))
{:a 1 :b 2})
(hk-test
"[a, b] fails on too-long list"
(hk-match
(list
:p-list
(list (list :p-var "a") (list :p-var "b")))
(hk-mk-list (list 1 2 3))
(dict))
nil)
;; Cons-style infix pattern (which the parser produces as :p-con ":")
(hk-test
"cons (h:t) on non-empty list"
(hk-match
(list
:p-con
":"
(list (list :p-var "h") (list :p-var "t")))
(hk-mk-list (list 1 2 3))
(dict))
{:h 1 :t (list ":" 2 (list ":" 3 (list "[]")))})
(hk-test
"cons fails on empty list"
(hk-match
(list
:p-con
":"
(list (list :p-var "h") (list :p-var "t")))
(hk-mk-nil)
(dict))
nil)
;; ── as patterns ──
(hk-test
"as binds whole + sub-pattern"
(hk-match
(list
:p-as
"all"
(list :p-con "Just" (list (list :p-var "x"))))
(hk-mk-con "Just" (list 99))
(dict))
{:all (list "Just" 99) :x 99})
(hk-test
"as on wildcard binds whole"
(hk-match
(list :p-as "v" (list :p-wild))
"anything"
(dict))
{:v "anything"})
(hk-test
"as fails when sub-pattern fails"
(hk-match
(list
:p-as
"n"
(list :p-con "Just" (list (list :p-var "x"))))
(hk-mk-con "Nothing" (list))
(dict))
nil)
;; ── lazy ~ pattern (eager equivalent for now) ──
(hk-test
"lazy pattern eager-matches its inner"
(hk-match
(list :p-lazy (list :p-var "y"))
42
(dict))
{:y 42})
;; ── Source-driven: parse a real Haskell pattern, match a value ──
(hk-test
"parsed pattern: Just x against Just 5"
(hk-match
(hk-parse-pat-source "Just x")
(hk-mk-con "Just" (list 5))
(dict))
{:x 5})
(hk-test
"parsed pattern: x : xs against [10, 20, 30]"
(hk-match
(hk-parse-pat-source "x : xs")
(hk-mk-list (list 10 20 30))
(dict))
{:x 10 :xs (list ":" 20 (list ":" 30 (list "[]")))})
(hk-test
"parsed pattern: (a, b) against (1, 2)"
(hk-match
(hk-parse-pat-source "(a, b)")
(hk-mk-tuple (list 1 2))
(dict))
{:a 1 :b 2})
(hk-test
"parsed pattern: n@(Just x) against Just 7"
(hk-match
(hk-parse-pat-source "n@(Just x)")
(hk-mk-con "Just" (list 7))
(dict))
{:n (list "Just" 7) :x 7})
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

View File

@@ -3,8 +3,60 @@
;; Lightweight runner: each test checks actual vs expected with
;; structural (deep) equality and accumulates pass/fail counters.
;; Final value of this file is a summary dict with :pass :fail :fails.
;; The hk-test / hk-deep=? helpers live in lib/haskell/testlib.sx
;; and are preloaded by lib/haskell/test.sh.
(define
hk-deep=?
(fn
(a b)
(cond
((= a b) true)
((and (dict? a) (dict? b))
(let
((ak (keys a)) (bk (keys b)))
(if
(not (= (len ak) (len bk)))
false
(every?
(fn
(k)
(and (has-key? b k) (hk-deep=? (get a k) (get b k))))
ak))))
((and (list? a) (list? b))
(if
(not (= (len a) (len b)))
false
(let
((i 0) (ok true))
(define
hk-de-loop
(fn
()
(when
(and ok (< i (len a)))
(do
(when
(not (hk-deep=? (nth a i) (nth b i)))
(set! ok false))
(set! i (+ i 1))
(hk-de-loop)))))
(hk-de-loop)
ok)))
(:else false))))
(define hk-test-pass 0)
(define hk-test-fail 0)
(define hk-test-fails (list))
(define
hk-test
(fn
(name actual expected)
(if
(hk-deep=? actual expected)
(set! hk-test-pass (+ hk-test-pass 1))
(do
(set! hk-test-fail (+ hk-test-fail 1))
(append! hk-test-fails {:actual actual :expected expected :name name})))))
;; Convenience: tokenize and drop newline + eof tokens so tests focus
;; on meaningful content. Returns list of {:type :value} pairs.

View File

@@ -1,278 +0,0 @@
;; case-of and do-notation parser tests.
;; Covers the minimal patterns needed to make these meaningful: var,
;; wildcard, literal, constructor (with and without args), tuple, list.
;; ── Patterns (in case arms) ──
(hk-test
"wildcard pat"
(hk-parse "case x of _ -> 0")
(list
:case
(list :var "x")
(list (list :alt (list :p-wild) (list :int 0)))))
(hk-test
"var pat"
(hk-parse "case x of y -> y")
(list
:case
(list :var "x")
(list
(list :alt (list :p-var "y") (list :var "y")))))
(hk-test
"0-arity constructor pat"
(hk-parse "case x of\n Nothing -> 0\n Just y -> y")
(list
:case
(list :var "x")
(list
(list :alt (list :p-con "Nothing" (list)) (list :int 0))
(list
:alt
(list :p-con "Just" (list (list :p-var "y")))
(list :var "y")))))
(hk-test
"int literal pat"
(hk-parse "case n of\n 0 -> 1\n _ -> n")
(list
:case
(list :var "n")
(list
(list :alt (list :p-int 0) (list :int 1))
(list :alt (list :p-wild) (list :var "n")))))
(hk-test
"string literal pat"
(hk-parse "case s of\n \"hi\" -> 1\n _ -> 0")
(list
:case
(list :var "s")
(list
(list :alt (list :p-string "hi") (list :int 1))
(list :alt (list :p-wild) (list :int 0)))))
(hk-test
"tuple pat"
(hk-parse "case p of (a, b) -> a")
(list
:case
(list :var "p")
(list
(list
:alt
(list
:p-tuple
(list (list :p-var "a") (list :p-var "b")))
(list :var "a")))))
(hk-test
"list pat"
(hk-parse "case xs of\n [] -> 0\n [a] -> a")
(list
:case
(list :var "xs")
(list
(list :alt (list :p-list (list)) (list :int 0))
(list
:alt
(list :p-list (list (list :p-var "a")))
(list :var "a")))))
(hk-test
"nested constructor pat"
(hk-parse "case x of\n Just (a, b) -> a\n _ -> 0")
(list
:case
(list :var "x")
(list
(list
:alt
(list
:p-con
"Just"
(list
(list
:p-tuple
(list (list :p-var "a") (list :p-var "b")))))
(list :var "a"))
(list :alt (list :p-wild) (list :int 0)))))
(hk-test
"constructor with multiple var args"
(hk-parse "case t of Pair a b -> a")
(list
:case
(list :var "t")
(list
(list
:alt
(list
:p-con
"Pair"
(list (list :p-var "a") (list :p-var "b")))
(list :var "a")))))
;; ── case-of shapes ──
(hk-test
"case with explicit braces"
(hk-parse "case x of { Just y -> y ; Nothing -> 0 }")
(list
:case
(list :var "x")
(list
(list
:alt
(list :p-con "Just" (list (list :p-var "y")))
(list :var "y"))
(list :alt (list :p-con "Nothing" (list)) (list :int 0)))))
(hk-test
"case scrutinee is a full expression"
(hk-parse "case f x + 1 of\n y -> y")
(list
:case
(list
:op
"+"
(list :app (list :var "f") (list :var "x"))
(list :int 1))
(list (list :alt (list :p-var "y") (list :var "y")))))
(hk-test
"case arm body is full expression"
(hk-parse "case x of\n Just y -> y + 1")
(list
:case
(list :var "x")
(list
(list
:alt
(list :p-con "Just" (list (list :p-var "y")))
(list :op "+" (list :var "y") (list :int 1))))))
;; ── do blocks ──
(hk-test
"do with two expressions"
(hk-parse "do\n putStrLn \"hi\"\n return 0")
(list
:do
(list
(list
:do-expr
(list :app (list :var "putStrLn") (list :string "hi")))
(list
:do-expr
(list :app (list :var "return") (list :int 0))))))
(hk-test
"do with bind"
(hk-parse "do\n x <- getLine\n putStrLn x")
(list
:do
(list
(list :do-bind (list :p-var "x") (list :var "getLine"))
(list
:do-expr
(list :app (list :var "putStrLn") (list :var "x"))))))
(hk-test
"do with let"
(hk-parse "do\n let y = 5\n print y")
(list
:do
(list
(list
:do-let
(list (list :bind (list :p-var "y") (list :int 5))))
(list
:do-expr
(list :app (list :var "print") (list :var "y"))))))
(hk-test
"do with multiple let bindings"
(hk-parse "do\n let x = 1\n y = 2\n print (x + y)")
(list
:do
(list
(list
:do-let
(list
(list :bind (list :p-var "x") (list :int 1))
(list :bind (list :p-var "y") (list :int 2))))
(list
:do-expr
(list
:app
(list :var "print")
(list :op "+" (list :var "x") (list :var "y")))))))
(hk-test
"do with bind using constructor pat"
(hk-parse "do\n Just x <- getMaybe\n return x")
(list
:do
(list
(list
:do-bind
(list :p-con "Just" (list (list :p-var "x")))
(list :var "getMaybe"))
(list
:do-expr
(list :app (list :var "return") (list :var "x"))))))
(hk-test
"do with explicit braces"
(hk-parse "do { x <- a ; y <- b ; return (x + y) }")
(list
:do
(list
(list :do-bind (list :p-var "x") (list :var "a"))
(list :do-bind (list :p-var "y") (list :var "b"))
(list
:do-expr
(list
:app
(list :var "return")
(list :op "+" (list :var "x") (list :var "y")))))))
;; ── Mixing case/do inside expressions ──
(hk-test
"case inside let"
(hk-parse "let f = \\x -> case x of\n Just y -> y\n _ -> 0\nin f 5")
(list
:let
(list
(list
:bind
(list :p-var "f")
(list
:lambda
(list (list :p-var "x"))
(list
:case
(list :var "x")
(list
(list
:alt
(list :p-con "Just" (list (list :p-var "y")))
(list :var "y"))
(list :alt (list :p-wild) (list :int 0)))))))
(list :app (list :var "f") (list :int 5))))
(hk-test
"lambda containing do"
(hk-parse "\\x -> do\n y <- x\n return y")
(list
:lambda
(list (list :p-var "x"))
(list
:do
(list
(list :do-bind (list :p-var "y") (list :var "x"))
(list
:do-expr
(list :app (list :var "return") (list :var "y")))))))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

View File

@@ -1,273 +0,0 @@
;; Top-level declarations: function clauses, type signatures, data,
;; type, newtype, fixity. Driven by hk-parse-top which produces
;; a (:program DECLS) node.
(define
hk-prog
(fn
(&rest decls)
(list :program decls)))
;; ── Function clauses & pattern bindings ──
(hk-test
"simple fun-clause"
(hk-parse-top "f x = x + 1")
(hk-prog
(list
:fun-clause
"f"
(list (list :p-var "x"))
(list :op "+" (list :var "x") (list :int 1)))))
(hk-test
"nullary decl"
(hk-parse-top "answer = 42")
(hk-prog
(list :fun-clause "answer" (list) (list :int 42))))
(hk-test
"multi-clause fn (separate defs for each pattern)"
(hk-parse-top "fact 0 = 1\nfact n = n")
(hk-prog
(list :fun-clause "fact" (list (list :p-int 0)) (list :int 1))
(list
:fun-clause
"fact"
(list (list :p-var "n"))
(list :var "n"))))
(hk-test
"constructor pattern in fn args"
(hk-parse-top "fromJust (Just x) = x")
(hk-prog
(list
:fun-clause
"fromJust"
(list (list :p-con "Just" (list (list :p-var "x"))))
(list :var "x"))))
(hk-test
"pattern binding at top level"
(hk-parse-top "(a, b) = pair")
(hk-prog
(list
:pat-bind
(list
:p-tuple
(list (list :p-var "a") (list :p-var "b")))
(list :var "pair"))))
;; ── Type signatures ──
(hk-test
"single-name sig"
(hk-parse-top "f :: Int -> Int")
(hk-prog
(list
:type-sig
(list "f")
(list :t-fun (list :t-con "Int") (list :t-con "Int")))))
(hk-test
"multi-name sig"
(hk-parse-top "f, g, h :: Int -> Bool")
(hk-prog
(list
:type-sig
(list "f" "g" "h")
(list :t-fun (list :t-con "Int") (list :t-con "Bool")))))
(hk-test
"sig with type application"
(hk-parse-top "f :: Maybe a -> a")
(hk-prog
(list
:type-sig
(list "f")
(list
:t-fun
(list :t-app (list :t-con "Maybe") (list :t-var "a"))
(list :t-var "a")))))
(hk-test
"sig with list type"
(hk-parse-top "len :: [a] -> Int")
(hk-prog
(list
:type-sig
(list "len")
(list
:t-fun
(list :t-list (list :t-var "a"))
(list :t-con "Int")))))
(hk-test
"sig with tuple and right-assoc ->"
(hk-parse-top "pair :: a -> b -> (a, b)")
(hk-prog
(list
:type-sig
(list "pair")
(list
:t-fun
(list :t-var "a")
(list
:t-fun
(list :t-var "b")
(list
:t-tuple
(list (list :t-var "a") (list :t-var "b"))))))))
(hk-test
"sig + implementation together"
(hk-parse-top "id :: a -> a\nid x = x")
(hk-prog
(list
:type-sig
(list "id")
(list :t-fun (list :t-var "a") (list :t-var "a")))
(list
:fun-clause
"id"
(list (list :p-var "x"))
(list :var "x"))))
;; ── data declarations ──
(hk-test
"data Maybe"
(hk-parse-top "data Maybe a = Nothing | Just a")
(hk-prog
(list
:data
"Maybe"
(list "a")
(list
(list :con-def "Nothing" (list))
(list :con-def "Just" (list (list :t-var "a")))))))
(hk-test
"data Either"
(hk-parse-top "data Either a b = Left a | Right b")
(hk-prog
(list
:data
"Either"
(list "a" "b")
(list
(list :con-def "Left" (list (list :t-var "a")))
(list :con-def "Right" (list (list :t-var "b")))))))
(hk-test
"data with no type parameters"
(hk-parse-top "data Bool = True | False")
(hk-prog
(list
:data
"Bool"
(list)
(list
(list :con-def "True" (list))
(list :con-def "False" (list))))))
(hk-test
"recursive data type"
(hk-parse-top "data Tree a = Leaf | Node (Tree a) a (Tree a)")
(hk-prog
(list
:data
"Tree"
(list "a")
(list
(list :con-def "Leaf" (list))
(list
:con-def
"Node"
(list
(list :t-app (list :t-con "Tree") (list :t-var "a"))
(list :t-var "a")
(list :t-app (list :t-con "Tree") (list :t-var "a"))))))))
;; ── type synonyms ──
(hk-test
"simple type synonym"
(hk-parse-top "type Name = String")
(hk-prog
(list :type-syn "Name" (list) (list :t-con "String"))))
(hk-test
"parameterised type synonym"
(hk-parse-top "type Pair a = (a, a)")
(hk-prog
(list
:type-syn
"Pair"
(list "a")
(list
:t-tuple
(list (list :t-var "a") (list :t-var "a"))))))
;; ── newtype ──
(hk-test
"newtype"
(hk-parse-top "newtype Age = Age Int")
(hk-prog (list :newtype "Age" (list) "Age" (list :t-con "Int"))))
(hk-test
"parameterised newtype"
(hk-parse-top "newtype Wrap a = Wrap a")
(hk-prog
(list :newtype "Wrap" (list "a") "Wrap" (list :t-var "a"))))
;; ── fixity declarations ──
(hk-test
"infixl with precedence"
(hk-parse-top "infixl 5 +:, -:")
(hk-prog (list :fixity "l" 5 (list "+:" "-:"))))
(hk-test
"infixr"
(hk-parse-top "infixr 9 .")
(hk-prog (list :fixity "r" 9 (list "."))))
(hk-test
"infix (non-assoc) default prec"
(hk-parse-top "infix ==")
(hk-prog (list :fixity "n" 9 (list "=="))))
(hk-test
"fixity with backtick operator name"
(hk-parse-top "infixl 7 `div`")
(hk-prog (list :fixity "l" 7 (list "div"))))
;; ── Several decls combined ──
(hk-test
"mixed: data + sig + fn + type"
(hk-parse-top "data Maybe a = Nothing | Just a\ntype Entry = Maybe Int\nf :: Entry -> Int\nf (Just x) = x\nf Nothing = 0")
(hk-prog
(list
:data
"Maybe"
(list "a")
(list
(list :con-def "Nothing" (list))
(list :con-def "Just" (list (list :t-var "a")))))
(list
:type-syn
"Entry"
(list)
(list :t-app (list :t-con "Maybe") (list :t-con "Int")))
(list
:type-sig
(list "f")
(list :t-fun (list :t-con "Entry") (list :t-con "Int")))
(list
:fun-clause
"f"
(list (list :p-con "Just" (list (list :p-var "x"))))
(list :var "x"))
(list
:fun-clause
"f"
(list (list :p-con "Nothing" (list)))
(list :int 0))))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

View File

@@ -1,258 +0,0 @@
;; Haskell expression parser tests.
;; hk-parse tokenises, runs layout, then parses. Output is an AST
;; whose head is a keyword tag (evaluates to its string name).
;; ── 1. Literals ──
(hk-test "integer" (hk-parse "42") (list :int 42))
(hk-test "float" (hk-parse "3.14") (list :float 3.14))
(hk-test "string" (hk-parse "\"hi\"") (list :string "hi"))
(hk-test "char" (hk-parse "'a'") (list :char "a"))
;; ── 2. Variables and constructors ──
(hk-test "varid" (hk-parse "foo") (list :var "foo"))
(hk-test "conid" (hk-parse "Nothing") (list :con "Nothing"))
(hk-test "qvarid" (hk-parse "Data.Map.lookup") (list :var "Data.Map.lookup"))
(hk-test "qconid" (hk-parse "Data.Map") (list :con "Data.Map"))
;; ── 3. Parens / unit / tuple ──
(hk-test "parens strip" (hk-parse "(42)") (list :int 42))
(hk-test "unit" (hk-parse "()") (list :con "()"))
(hk-test
"2-tuple"
(hk-parse "(1, 2)")
(list :tuple (list (list :int 1) (list :int 2))))
(hk-test
"3-tuple"
(hk-parse "(x, y, z)")
(list
:tuple
(list (list :var "x") (list :var "y") (list :var "z"))))
;; ── 4. Lists ──
(hk-test "empty list" (hk-parse "[]") (list :list (list)))
(hk-test
"singleton list"
(hk-parse "[1]")
(list :list (list (list :int 1))))
(hk-test
"list of ints"
(hk-parse "[1, 2, 3]")
(list
:list
(list (list :int 1) (list :int 2) (list :int 3))))
(hk-test
"range"
(hk-parse "[1..10]")
(list :range (list :int 1) (list :int 10)))
(hk-test
"range with step"
(hk-parse "[1, 3..10]")
(list
:range-step
(list :int 1)
(list :int 3)
(list :int 10)))
;; ── 5. Application ──
(hk-test
"one-arg app"
(hk-parse "f x")
(list :app (list :var "f") (list :var "x")))
(hk-test
"multi-arg app is left-assoc"
(hk-parse "f x y z")
(list
:app
(list
:app
(list :app (list :var "f") (list :var "x"))
(list :var "y"))
(list :var "z")))
(hk-test
"app with con"
(hk-parse "Just 5")
(list :app (list :con "Just") (list :int 5)))
;; ── 6. Infix operators ──
(hk-test
"simple +"
(hk-parse "1 + 2")
(list :op "+" (list :int 1) (list :int 2)))
(hk-test
"precedence: * binds tighter than +"
(hk-parse "1 + 2 * 3")
(list
:op
"+"
(list :int 1)
(list :op "*" (list :int 2) (list :int 3))))
(hk-test
"- is left-assoc"
(hk-parse "10 - 3 - 2")
(list
:op
"-"
(list :op "-" (list :int 10) (list :int 3))
(list :int 2)))
(hk-test
": is right-assoc"
(hk-parse "a : b : c")
(list
:op
":"
(list :var "a")
(list :op ":" (list :var "b") (list :var "c"))))
(hk-test
"app binds tighter than op"
(hk-parse "f x + g y")
(list
:op
"+"
(list :app (list :var "f") (list :var "x"))
(list :app (list :var "g") (list :var "y"))))
(hk-test
"$ is lowest precedence, right-assoc"
(hk-parse "f $ g x")
(list
:op
"$"
(list :var "f")
(list :app (list :var "g") (list :var "x"))))
;; ── 7. Backticks (varid-as-operator) ──
(hk-test
"backtick operator"
(hk-parse "x `mod` 3")
(list :op "mod" (list :var "x") (list :int 3)))
;; ── 8. Unary negation ──
(hk-test
"unary -"
(hk-parse "- 5")
(list :neg (list :int 5)))
(hk-test
"unary - on application"
(hk-parse "- f x")
(list :neg (list :app (list :var "f") (list :var "x"))))
(hk-test
"- n + m → (- n) + m"
(hk-parse "- 1 + 2")
(list
:op
"+"
(list :neg (list :int 1))
(list :int 2)))
;; ── 9. Lambda ──
(hk-test
"lambda single param"
(hk-parse "\\x -> x")
(list :lambda (list (list :p-var "x")) (list :var "x")))
(hk-test
"lambda multi-param"
(hk-parse "\\x y -> x + y")
(list
:lambda
(list (list :p-var "x") (list :p-var "y"))
(list :op "+" (list :var "x") (list :var "y"))))
(hk-test
"lambda body is full expression"
(hk-parse "\\f -> f 1 + f 2")
(list
:lambda
(list (list :p-var "f"))
(list
:op
"+"
(list :app (list :var "f") (list :int 1))
(list :app (list :var "f") (list :int 2)))))
;; ── 10. if-then-else ──
(hk-test
"if basic"
(hk-parse "if x then 1 else 2")
(list :if (list :var "x") (list :int 1) (list :int 2)))
(hk-test
"if with infix cond"
(hk-parse "if x == 0 then y else z")
(list
:if
(list :op "==" (list :var "x") (list :int 0))
(list :var "y")
(list :var "z")))
;; ── 11. let-in ──
(hk-test
"let single binding"
(hk-parse "let x = 1 in x")
(list
:let
(list (list :bind (list :p-var "x") (list :int 1)))
(list :var "x")))
(hk-test
"let two bindings (multi-line)"
(hk-parse "let x = 1\n y = 2\nin x + y")
(list
:let
(list
(list :bind (list :p-var "x") (list :int 1))
(list :bind (list :p-var "y") (list :int 2)))
(list :op "+" (list :var "x") (list :var "y"))))
(hk-test
"let with explicit braces"
(hk-parse "let { x = 1 ; y = 2 } in x + y")
(list
:let
(list
(list :bind (list :p-var "x") (list :int 1))
(list :bind (list :p-var "y") (list :int 2)))
(list :op "+" (list :var "x") (list :var "y"))))
;; ── 12. Mixed / nesting ──
(hk-test
"nested application"
(hk-parse "f (g x) y")
(list
:app
(list
:app
(list :var "f")
(list :app (list :var "g") (list :var "x")))
(list :var "y")))
(hk-test
"lambda applied"
(hk-parse "(\\x -> x + 1) 5")
(list
:app
(list
:lambda
(list (list :p-var "x"))
(list :op "+" (list :var "x") (list :int 1)))
(list :int 5)))
(hk-test
"lambda + if"
(hk-parse "\\n -> if n == 0 then 1 else n")
(list
:lambda
(list (list :p-var "n"))
(list
:if
(list :op "==" (list :var "n") (list :int 0))
(list :int 1)
(list :var "n"))))
;; ── 13. Precedence corners ──
(hk-test
". is right-assoc (prec 9)"
(hk-parse "f . g . h")
(list
:op
"."
(list :var "f")
(list :op "." (list :var "g") (list :var "h"))))
(hk-test
"== is non-associative (single use)"
(hk-parse "x == y")
(list :op "==" (list :var "x") (list :var "y")))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

View File

@@ -1,261 +0,0 @@
;; Guards and where-clauses — on fun-clauses, case alts, and
;; let-bindings (which now also accept funclause-style LHS like
;; `let f x = e` or `let f x | g = e | g = e`).
(define
hk-prog
(fn (&rest decls) (list :program decls)))
;; ── Guarded fun-clauses ──
(hk-test
"simple guards (two branches)"
(hk-parse-top "abs x | x < 0 = - x\n | otherwise = x")
(hk-prog
(list
:fun-clause
"abs"
(list (list :p-var "x"))
(list
:guarded
(list
(list
:guard
(list :op "<" (list :var "x") (list :int 0))
(list :neg (list :var "x")))
(list :guard (list :var "otherwise") (list :var "x")))))))
(hk-test
"three-way guard"
(hk-parse-top "sign n | n > 0 = 1\n | n < 0 = -1\n | otherwise = 0")
(hk-prog
(list
:fun-clause
"sign"
(list (list :p-var "n"))
(list
:guarded
(list
(list
:guard
(list :op ">" (list :var "n") (list :int 0))
(list :int 1))
(list
:guard
(list :op "<" (list :var "n") (list :int 0))
(list :neg (list :int 1)))
(list
:guard
(list :var "otherwise")
(list :int 0)))))))
(hk-test
"mixed: one eq clause plus one guarded clause"
(hk-parse-top "sign 0 = 0\nsign n | n > 0 = 1\n | otherwise = -1")
(hk-prog
(list
:fun-clause
"sign"
(list (list :p-int 0))
(list :int 0))
(list
:fun-clause
"sign"
(list (list :p-var "n"))
(list
:guarded
(list
(list
:guard
(list :op ">" (list :var "n") (list :int 0))
(list :int 1))
(list
:guard
(list :var "otherwise")
(list :neg (list :int 1))))))))
;; ── where on fun-clauses ──
(hk-test
"where with one binding"
(hk-parse-top "f x = y + y\n where y = x + 1")
(hk-prog
(list
:fun-clause
"f"
(list (list :p-var "x"))
(list
:where
(list :op "+" (list :var "y") (list :var "y"))
(list
(list
:fun-clause
"y"
(list)
(list :op "+" (list :var "x") (list :int 1))))))))
(hk-test
"where with multiple bindings"
(hk-parse-top "f x = y * z\n where y = x + 1\n z = x - 1")
(hk-prog
(list
:fun-clause
"f"
(list (list :p-var "x"))
(list
:where
(list :op "*" (list :var "y") (list :var "z"))
(list
(list
:fun-clause
"y"
(list)
(list :op "+" (list :var "x") (list :int 1)))
(list
:fun-clause
"z"
(list)
(list :op "-" (list :var "x") (list :int 1))))))))
(hk-test
"guards + where"
(hk-parse-top "f x | x > 0 = y\n | otherwise = 0\n where y = 99")
(hk-prog
(list
:fun-clause
"f"
(list (list :p-var "x"))
(list
:where
(list
:guarded
(list
(list
:guard
(list :op ">" (list :var "x") (list :int 0))
(list :var "y"))
(list
:guard
(list :var "otherwise")
(list :int 0))))
(list
(list :fun-clause "y" (list) (list :int 99)))))))
;; ── Guards in case alts ──
(hk-test
"case alt with guards"
(hk-parse "case x of\n Just y | y > 0 -> y\n | otherwise -> 0\n Nothing -> 0")
(list
:case
(list :var "x")
(list
(list
:alt
(list :p-con "Just" (list (list :p-var "y")))
(list
:guarded
(list
(list
:guard
(list :op ">" (list :var "y") (list :int 0))
(list :var "y"))
(list
:guard
(list :var "otherwise")
(list :int 0)))))
(list :alt (list :p-con "Nothing" (list)) (list :int 0)))))
(hk-test
"case alt with where"
(hk-parse "case x of\n Just y -> y + z where z = 5\n Nothing -> 0")
(list
:case
(list :var "x")
(list
(list
:alt
(list :p-con "Just" (list (list :p-var "y")))
(list
:where
(list :op "+" (list :var "y") (list :var "z"))
(list
(list :fun-clause "z" (list) (list :int 5)))))
(list :alt (list :p-con "Nothing" (list)) (list :int 0)))))
;; ── let-bindings: funclause form, guards, where ──
(hk-test
"let with funclause shorthand"
(hk-parse "let f x = x + 1 in f 5")
(list
:let
(list
(list
:fun-clause
"f"
(list (list :p-var "x"))
(list :op "+" (list :var "x") (list :int 1))))
(list :app (list :var "f") (list :int 5))))
(hk-test
"let with guards"
(hk-parse "let f x | x > 0 = x\n | otherwise = 0\nin f 3")
(list
:let
(list
(list
:fun-clause
"f"
(list (list :p-var "x"))
(list
:guarded
(list
(list
:guard
(list :op ">" (list :var "x") (list :int 0))
(list :var "x"))
(list
:guard
(list :var "otherwise")
(list :int 0))))))
(list :app (list :var "f") (list :int 3))))
(hk-test
"let funclause + where"
(hk-parse "let f x = y where y = x + 1\nin f 7")
(list
:let
(list
(list
:fun-clause
"f"
(list (list :p-var "x"))
(list
:where
(list :var "y")
(list
(list
:fun-clause
"y"
(list)
(list :op "+" (list :var "x") (list :int 1)))))))
(list :app (list :var "f") (list :int 7))))
;; ── Nested: where inside where (via recursive hk-parse-decl) ──
(hk-test
"where block can contain a type signature"
(hk-parse-top "f x = y\n where y :: Int\n y = x")
(hk-prog
(list
:fun-clause
"f"
(list (list :p-var "x"))
(list
:where
(list :var "y")
(list
(list :type-sig (list "y") (list :t-con "Int"))
(list
:fun-clause
"y"
(list)
(list :var "x")))))))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,202 +0,0 @@
;; Module header + imports. The parser switches from (:program DECLS)
;; to (:module NAME EXPORTS IMPORTS DECLS) as soon as a module header
;; or any `import` decl appears.
;; ── Module header ──
(hk-test
"simple module, no exports"
(hk-parse-top "module M where\n f = 1")
(list
:module
"M"
nil
(list)
(list (list :fun-clause "f" (list) (list :int 1)))))
(hk-test
"module with dotted name"
(hk-parse-top "module Data.Map where\nf = 1")
(list
:module
"Data.Map"
nil
(list)
(list (list :fun-clause "f" (list) (list :int 1)))))
(hk-test
"module with empty export list"
(hk-parse-top "module M () where\nf = 1")
(list
:module
"M"
(list)
(list)
(list (list :fun-clause "f" (list) (list :int 1)))))
(hk-test
"module with exports (var, tycon-all, tycon-with)"
(hk-parse-top "module M (f, g, Maybe(..), List(Cons, Nil)) where\nf = 1\ng = 2")
(list
:module
"M"
(list
(list :ent-var "f")
(list :ent-var "g")
(list :ent-all "Maybe")
(list :ent-with "List" (list "Cons" "Nil")))
(list)
(list
(list :fun-clause "f" (list) (list :int 1))
(list :fun-clause "g" (list) (list :int 2)))))
(hk-test
"module export list including another module"
(hk-parse-top "module M (module Foo, f) where\nf = 1")
(list
:module
"M"
(list (list :ent-module "Foo") (list :ent-var "f"))
(list)
(list (list :fun-clause "f" (list) (list :int 1)))))
(hk-test
"module export with operator"
(hk-parse-top "module M ((+:), f) where\nf = 1")
(list
:module
"M"
(list (list :ent-var "+:") (list :ent-var "f"))
(list)
(list (list :fun-clause "f" (list) (list :int 1)))))
(hk-test
"empty module body"
(hk-parse-top "module M where")
(list :module "M" nil (list) (list)))
;; ── Imports ──
(hk-test
"plain import"
(hk-parse-top "import Foo")
(list
:module
nil
nil
(list (list :import false "Foo" nil nil))
(list)))
(hk-test
"qualified import"
(hk-parse-top "import qualified Data.Map")
(list
:module
nil
nil
(list (list :import true "Data.Map" nil nil))
(list)))
(hk-test
"import with alias"
(hk-parse-top "import Data.Map as M")
(list
:module
nil
nil
(list (list :import false "Data.Map" "M" nil))
(list)))
(hk-test
"import with explicit list"
(hk-parse-top "import Foo (bar, Baz(..), Quux(X, Y))")
(list
:module
nil
nil
(list
(list
:import
false
"Foo"
nil
(list
:spec-items
(list
(list :ent-var "bar")
(list :ent-all "Baz")
(list :ent-with "Quux" (list "X" "Y"))))))
(list)))
(hk-test
"import hiding"
(hk-parse-top "import Foo hiding (x, y)")
(list
:module
nil
nil
(list
(list
:import
false
"Foo"
nil
(list
:spec-hiding
(list (list :ent-var "x") (list :ent-var "y")))))
(list)))
(hk-test
"qualified + alias + hiding"
(hk-parse-top "import qualified Data.List as L hiding (sort)")
(list
:module
nil
nil
(list
(list
:import
true
"Data.List"
"L"
(list :spec-hiding (list (list :ent-var "sort")))))
(list)))
;; ── Combinations ──
(hk-test
"module with multiple imports and a decl"
(hk-parse-top "module M where\nimport Foo\nimport qualified Bar as B\nf = 1")
(list
:module
"M"
nil
(list
(list :import false "Foo" nil nil)
(list :import true "Bar" "B" nil))
(list (list :fun-clause "f" (list) (list :int 1)))))
(hk-test
"headerless file with imports"
(hk-parse-top "import Foo\nimport Bar (baz)\nf = 1")
(list
:module
nil
nil
(list
(list :import false "Foo" nil nil)
(list
:import
false
"Bar"
nil
(list :spec-items (list (list :ent-var "baz")))))
(list (list :fun-clause "f" (list) (list :int 1)))))
(hk-test
"plain program (no header, no imports) still uses :program"
(hk-parse-top "f = 1\ng = 2")
(list
:program
(list
(list :fun-clause "f" (list) (list :int 1))
(list :fun-clause "g" (list) (list :int 2)))))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

View File

@@ -1,234 +0,0 @@
;; Full-pattern parser tests: as-patterns, lazy ~, negative literals,
;; infix constructor patterns (`:`, any consym), lambda pattern args,
;; and let pattern-bindings.
;; ── as-patterns ──
(hk-test
"as pattern, wraps constructor"
(hk-parse "case x of n@(Just y) -> n")
(list
:case
(list :var "x")
(list
(list
:alt
(list
:p-as
"n"
(list :p-con "Just" (list (list :p-var "y"))))
(list :var "n")))))
(hk-test
"as pattern, wraps wildcard"
(hk-parse "case x of all@_ -> all")
(list
:case
(list :var "x")
(list
(list
:alt
(list :p-as "all" (list :p-wild))
(list :var "all")))))
(hk-test
"as in lambda"
(hk-parse "\\xs@(a : rest) -> xs")
(list
:lambda
(list
(list
:p-as
"xs"
(list
:p-con
":"
(list (list :p-var "a") (list :p-var "rest")))))
(list :var "xs")))
;; ── lazy patterns ──
(hk-test
"lazy var"
(hk-parse "case x of ~y -> y")
(list
:case
(list :var "x")
(list
(list :alt (list :p-lazy (list :p-var "y")) (list :var "y")))))
(hk-test
"lazy constructor"
(hk-parse "\\(~(Just x)) -> x")
(list
:lambda
(list
(list
:p-lazy
(list :p-con "Just" (list (list :p-var "x")))))
(list :var "x")))
;; ── negative literal patterns ──
(hk-test
"negative int pattern"
(hk-parse "case n of\n -1 -> 0\n _ -> n")
(list
:case
(list :var "n")
(list
(list :alt (list :p-int -1) (list :int 0))
(list :alt (list :p-wild) (list :var "n")))))
(hk-test
"negative float pattern"
(hk-parse "case x of -0.5 -> 1")
(list
:case
(list :var "x")
(list (list :alt (list :p-float -0.5) (list :int 1)))))
;; ── infix constructor patterns (`:` and any consym) ──
(hk-test
"cons pattern"
(hk-parse "case xs of x : rest -> x")
(list
:case
(list :var "xs")
(list
(list
:alt
(list
:p-con
":"
(list (list :p-var "x") (list :p-var "rest")))
(list :var "x")))))
(hk-test
"cons is right-associative in pats"
(hk-parse "case xs of a : b : rest -> rest")
(list
:case
(list :var "xs")
(list
(list
:alt
(list
:p-con
":"
(list
(list :p-var "a")
(list
:p-con
":"
(list (list :p-var "b") (list :p-var "rest")))))
(list :var "rest")))))
(hk-test
"consym pattern"
(hk-parse "case p of a :+: b -> a")
(list
:case
(list :var "p")
(list
(list
:alt
(list
:p-con
":+:"
(list (list :p-var "a") (list :p-var "b")))
(list :var "a")))))
;; ── lambda with pattern args ──
(hk-test
"lambda with constructor pattern"
(hk-parse "\\(Just x) -> x")
(list
:lambda
(list (list :p-con "Just" (list (list :p-var "x"))))
(list :var "x")))
(hk-test
"lambda with tuple pattern"
(hk-parse "\\(a, b) -> a + b")
(list
:lambda
(list
(list
:p-tuple
(list (list :p-var "a") (list :p-var "b"))))
(list :op "+" (list :var "a") (list :var "b"))))
(hk-test
"lambda with wildcard"
(hk-parse "\\_ -> 42")
(list :lambda (list (list :p-wild)) (list :int 42)))
(hk-test
"lambda with mixed apats"
(hk-parse "\\x _ (Just y) -> y")
(list
:lambda
(list
(list :p-var "x")
(list :p-wild)
(list :p-con "Just" (list (list :p-var "y"))))
(list :var "y")))
;; ── let pattern-bindings ──
(hk-test
"let tuple pattern-binding"
(hk-parse "let (x, y) = pair in x + y")
(list
:let
(list
(list
:bind
(list
:p-tuple
(list (list :p-var "x") (list :p-var "y")))
(list :var "pair")))
(list :op "+" (list :var "x") (list :var "y"))))
(hk-test
"let constructor pattern-binding"
(hk-parse "let Just x = m in x")
(list
:let
(list
(list
:bind
(list :p-con "Just" (list (list :p-var "x")))
(list :var "m")))
(list :var "x")))
(hk-test
"let cons pattern-binding"
(hk-parse "let (x : rest) = xs in x")
(list
:let
(list
(list
:bind
(list
:p-con
":"
(list (list :p-var "x") (list :p-var "rest")))
(list :var "xs")))
(list :var "x")))
;; ── do with constructor-pattern binds ──
(hk-test
"do bind to tuple pattern"
(hk-parse "do\n (a, b) <- pairs\n return a")
(list
:do
(list
(list
:do-bind
(list
:p-tuple
(list (list :p-var "a") (list :p-var "b")))
(list :var "pairs"))
(list
:do-expr
(list :app (list :var "return") (list :var "a"))))))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

View File

@@ -1,191 +0,0 @@
;; Operator sections and list comprehensions.
;; ── Operator references (unchanged expr shape) ──
(hk-test
"op as value (+)"
(hk-parse "(+)")
(list :var "+"))
(hk-test
"op as value (-)"
(hk-parse "(-)")
(list :var "-"))
(hk-test
"op as value (:)"
(hk-parse "(:)")
(list :var ":"))
(hk-test
"backtick op as value"
(hk-parse "(`div`)")
(list :var "div"))
;; ── Right sections (op expr) ──
(hk-test
"right section (+ 5)"
(hk-parse "(+ 5)")
(list :sect-right "+" (list :int 5)))
(hk-test
"right section (* x)"
(hk-parse "(* x)")
(list :sect-right "*" (list :var "x")))
(hk-test
"right section with backtick op"
(hk-parse "(`div` 2)")
(list :sect-right "div" (list :int 2)))
;; `-` is unary in expr position — (- 5) is negation, not a right section
(hk-test
"(- 5) is negation, not a section"
(hk-parse "(- 5)")
(list :neg (list :int 5)))
;; ── Left sections (expr op) ──
(hk-test
"left section (5 +)"
(hk-parse "(5 +)")
(list :sect-left "+" (list :int 5)))
(hk-test
"left section with backtick"
(hk-parse "(x `mod`)")
(list :sect-left "mod" (list :var "x")))
(hk-test
"left section with cons (x :)"
(hk-parse "(x :)")
(list :sect-left ":" (list :var "x")))
;; ── Mixed / nesting ──
(hk-test
"map (+ 1) xs"
(hk-parse "map (+ 1) xs")
(list
:app
(list
:app
(list :var "map")
(list :sect-right "+" (list :int 1)))
(list :var "xs")))
(hk-test
"filter (< 0) xs"
(hk-parse "filter (< 0) xs")
(list
:app
(list
:app
(list :var "filter")
(list :sect-right "<" (list :int 0)))
(list :var "xs")))
;; ── Plain parens and tuples still work ──
(hk-test
"plain parens unwrap"
(hk-parse "(1 + 2)")
(list :op "+" (list :int 1) (list :int 2)))
(hk-test
"tuple still parses"
(hk-parse "(a, b, c)")
(list
:tuple
(list (list :var "a") (list :var "b") (list :var "c"))))
;; ── List comprehensions ──
(hk-test
"simple list comprehension"
(hk-parse "[x | x <- xs]")
(list
:list-comp
(list :var "x")
(list
(list :q-gen (list :p-var "x") (list :var "xs")))))
(hk-test
"comprehension with filter"
(hk-parse "[x * 2 | x <- xs, x > 0]")
(list
:list-comp
(list :op "*" (list :var "x") (list :int 2))
(list
(list :q-gen (list :p-var "x") (list :var "xs"))
(list
:q-guard
(list :op ">" (list :var "x") (list :int 0))))))
(hk-test
"comprehension with let"
(hk-parse "[y | x <- xs, let y = x + 1]")
(list
:list-comp
(list :var "y")
(list
(list :q-gen (list :p-var "x") (list :var "xs"))
(list
:q-let
(list
(list
:bind
(list :p-var "y")
(list :op "+" (list :var "x") (list :int 1))))))))
(hk-test
"nested generators"
(hk-parse "[(x, y) | x <- xs, y <- ys]")
(list
:list-comp
(list :tuple (list (list :var "x") (list :var "y")))
(list
(list :q-gen (list :p-var "x") (list :var "xs"))
(list :q-gen (list :p-var "y") (list :var "ys")))))
(hk-test
"comprehension with constructor pattern"
(hk-parse "[v | Just v <- xs]")
(list
:list-comp
(list :var "v")
(list
(list
:q-gen
(list :p-con "Just" (list (list :p-var "v")))
(list :var "xs")))))
(hk-test
"comprehension with tuple pattern"
(hk-parse "[x + y | (x, y) <- pairs]")
(list
:list-comp
(list :op "+" (list :var "x") (list :var "y"))
(list
(list
:q-gen
(list
:p-tuple
(list (list :p-var "x") (list :p-var "y")))
(list :var "pairs")))))
(hk-test
"combination: generator, let, guard"
(hk-parse "[z | x <- xs, let z = x * 2, z > 10]")
(list
:list-comp
(list :var "z")
(list
(list :q-gen (list :p-var "x") (list :var "xs"))
(list
:q-let
(list
(list
:bind
(list :p-var "z")
(list :op "*" (list :var "x") (list :int 2)))))
(list
:q-guard
(list :op ">" (list :var "z") (list :int 10))))))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,234 +0,0 @@
;; prelude-extra.sx — tests for Phase 6 prelude additions:
;; ord/isAlpha/isDigit/isSpace/isUpper/isLower/isAlphaNum/digitToInt
;; words/lines/unwords/unlines/sort/nub/splitAt/span/break
;; partition/intercalate/intersperse/isPrefixOf/isSuffixOf/isInfixOf
;; ── ord ──────────────────────────────────────────────────────
(hk-test "ord 'A'" (hk-eval-expr-source "ord 'A'") 65)
(hk-test "ord 'a'" (hk-eval-expr-source "ord 'a'") 97)
(hk-test "ord '0'" (hk-eval-expr-source "ord '0'") 48)
;; ── isAlpha / isDigit / isSpace / isUpper / isLower ──────────
(hk-test
"isAlpha 'a' True"
(hk-eval-expr-source "isAlpha 'a'")
(list "True"))
(hk-test
"isAlpha 'Z' True"
(hk-eval-expr-source "isAlpha 'Z'")
(list "True"))
(hk-test
"isAlpha '3' False"
(hk-eval-expr-source "isAlpha '3'")
(list "False"))
(hk-test
"isDigit '5' True"
(hk-eval-expr-source "isDigit '5'")
(list "True"))
(hk-test
"isDigit 'a' False"
(hk-eval-expr-source "isDigit 'a'")
(list "False"))
(hk-test
"isSpace ' ' True"
(hk-eval-expr-source "isSpace ' '")
(list "True"))
(hk-test
"isSpace 'x' False"
(hk-eval-expr-source "isSpace 'x'")
(list "False"))
(hk-test
"isUpper 'A' True"
(hk-eval-expr-source "isUpper 'A'")
(list "True"))
(hk-test
"isUpper 'a' False"
(hk-eval-expr-source "isUpper 'a'")
(list "False"))
(hk-test
"isLower 'z' True"
(hk-eval-expr-source "isLower 'z'")
(list "True"))
(hk-test
"isLower 'Z' False"
(hk-eval-expr-source "isLower 'Z'")
(list "False"))
(hk-test
"isAlphaNum '3' True"
(hk-eval-expr-source "isAlphaNum '3'")
(list "True"))
(hk-test
"isAlphaNum 'b' True"
(hk-eval-expr-source "isAlphaNum 'b'")
(list "True"))
(hk-test
"isAlphaNum '!' False"
(hk-eval-expr-source "isAlphaNum '!'")
(list "False"))
;; ── digitToInt ───────────────────────────────────────────────
(hk-test "digitToInt '0'" (hk-eval-expr-source "digitToInt '0'") 0)
(hk-test "digitToInt '7'" (hk-eval-expr-source "digitToInt '7'") 7)
(hk-test "digitToInt '9'" (hk-eval-expr-source "digitToInt '9'") 9)
;; ── words ────────────────────────────────────────────────────
(hk-test
"words single"
(hk-deep-force (hk-eval-expr-source "words \"hello\""))
(list ":" "hello" (list "[]")))
(hk-test
"words two"
(hk-deep-force (hk-eval-expr-source "words \"hello world\""))
(list ":" "hello" (list ":" "world" (list "[]"))))
(hk-test
"words leading/trailing spaces"
(hk-deep-force (hk-eval-expr-source "words \" foo bar \""))
(list ":" "foo" (list ":" "bar" (list "[]"))))
(hk-test
"words empty string"
(hk-deep-force (hk-eval-expr-source "words \"\""))
(list "[]"))
;; ── lines ────────────────────────────────────────────────────
(hk-test
"lines single no newline"
(hk-deep-force (hk-eval-expr-source "lines \"hello\""))
(list ":" "hello" (list "[]")))
(hk-test
"lines two lines"
(hk-deep-force (hk-eval-expr-source "lines \"a\\nb\""))
(list ":" "a" (list ":" "b" (list "[]"))))
(hk-test
"lines trailing newline"
(hk-deep-force (hk-eval-expr-source "lines \"a\\n\""))
(list ":" "a" (list "[]")))
(hk-test
"lines empty string"
(hk-deep-force (hk-eval-expr-source "lines \"\""))
(list "[]"))
;; ── unwords / unlines ────────────────────────────────────────
(hk-test
"unwords two"
(hk-eval-expr-source "unwords [\"hello\", \"world\"]")
"hello world")
(hk-test "unwords empty" (hk-eval-expr-source "unwords []") "")
(hk-test "unlines two" (hk-eval-expr-source "unlines [\"a\", \"b\"]") "a\nb\n")
;; ── sort / nub ───────────────────────────────────────────────
(hk-test
"sort ascending"
(hk-deep-force (hk-eval-expr-source "sort [3,1,2]"))
(list ":" 1 (list ":" 2 (list ":" 3 (list "[]")))))
(hk-test
"sort already sorted"
(hk-deep-force (hk-eval-expr-source "sort [1,2,3]"))
(list ":" 1 (list ":" 2 (list ":" 3 (list "[]")))))
(hk-test
"nub removes duplicates"
(hk-deep-force (hk-eval-expr-source "nub [1,2,1,3,2]"))
(list ":" 1 (list ":" 2 (list ":" 3 (list "[]")))))
(hk-test
"nub no duplicates unchanged"
(hk-deep-force (hk-eval-expr-source "nub [1,2,3]"))
(list ":" 1 (list ":" 2 (list ":" 3 (list "[]")))))
;; ── splitAt ──────────────────────────────────────────────────
(hk-test
"splitAt 2"
(hk-deep-force (hk-eval-expr-source "splitAt 2 [1,2,3,4]"))
(list
"Tuple"
(list ":" 1 (list ":" 2 (list "[]")))
(list ":" 3 (list ":" 4 (list "[]")))))
(hk-test
"splitAt 0"
(hk-deep-force (hk-eval-expr-source "splitAt 0 [1,2,3]"))
(list
"Tuple"
(list "[]")
(list ":" 1 (list ":" 2 (list ":" 3 (list "[]"))))))
;; ── span / break ─────────────────────────────────────────────
(hk-test
"span digits"
(hk-deep-force (hk-eval-expr-source "span (\\x -> x < 3) [1,2,3,4]"))
(list
"Tuple"
(list ":" 1 (list ":" 2 (list "[]")))
(list ":" 3 (list ":" 4 (list "[]")))))
(hk-test
"break digits"
(hk-deep-force (hk-eval-expr-source "break (\\x -> x >= 3) [1,2,3,4]"))
(list
"Tuple"
(list ":" 1 (list ":" 2 (list "[]")))
(list ":" 3 (list ":" 4 (list "[]")))))
;; ── partition ────────────────────────────────────────────────
(hk-test
"partition even/odd"
(hk-deep-force
(hk-eval-expr-source "partition (\\x -> x `mod` 2 == 0) [1,2,3,4,5]"))
(list
"Tuple"
(list ":" 2 (list ":" 4 (list "[]")))
(list ":" 1 (list ":" 3 (list ":" 5 (list "[]"))))))
;; ── intercalate / intersperse ────────────────────────────────
(hk-test
"intercalate"
(hk-eval-expr-source "intercalate \", \" [\"a\", \"b\", \"c\"]")
"a, b, c")
(hk-test
"intersperse"
(hk-deep-force (hk-eval-expr-source "intersperse 0 [1,2,3]"))
(list
":"
1
(list
":"
0
(list ":" 2 (list ":" 0 (list ":" 3 (list "[]")))))))
;; ── isPrefixOf / isSuffixOf / isInfixOf ──────────────────────
(hk-test
"isPrefixOf True"
(hk-deep-force (hk-eval-expr-source "isPrefixOf [1,2] [1,2,3]"))
(list "True"))
(hk-test
"isPrefixOf False"
(hk-deep-force (hk-eval-expr-source "isPrefixOf [2,3] [1,2,3]"))
(list "False"))
(hk-test
"isSuffixOf True"
(hk-deep-force (hk-eval-expr-source "isSuffixOf [2,3] [1,2,3]"))
(list "True"))
(hk-test
"isInfixOf True"
(hk-deep-force (hk-eval-expr-source "isInfixOf [2,3] [1,2,3,4]"))
(list "True"))
(hk-test
"isInfixOf False"
(hk-deep-force (hk-eval-expr-source "isInfixOf [5,6] [1,2,3,4]"))
(list "False"))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,70 +0,0 @@
;; anagram.hs — anagram detection using sort.
(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-ana-src
"isAnagram xs ys = sort xs == sort ys\n\nhasAnagram needle haystack = any (isAnagram needle) haystack\n")
(hk-test
"isAnagram [1,2,3] [3,2,1] True"
(hk-prog-val (str hk-ana-src "r = isAnagram [1,2,3] [3,2,1]\n") "r")
(list "True"))
(hk-test
"isAnagram [1,2,3] [1,2,4] False"
(hk-prog-val (str hk-ana-src "r = isAnagram [1,2,3] [1,2,4]\n") "r")
(list "False"))
(hk-test
"isAnagram [] [] True"
(hk-prog-val (str hk-ana-src "r = isAnagram [] []\n") "r")
(list "True"))
(hk-test
"isAnagram [1] [1] True"
(hk-prog-val (str hk-ana-src "r = isAnagram [1] [1]\n") "r")
(list "True"))
(hk-test
"isAnagram [1,2] [2,1] True"
(hk-prog-val (str hk-ana-src "r = isAnagram [1,2] [2,1]\n") "r")
(list "True"))
(hk-test
"isAnagram [1,1,2] [2,1,1] True"
(hk-prog-val (str hk-ana-src "r = isAnagram [1,1,2] [2,1,1]\n") "r")
(list "True"))
(hk-test
"isAnagram [1,2] [1,2,3] False"
(hk-prog-val (str hk-ana-src "r = isAnagram [1,2] [1,2,3]\n") "r")
(list "False"))
(hk-test
"hasAnagram [1,2] [[3,4],[2,1],[5,6]] True"
(hk-prog-val
(str hk-ana-src "r = hasAnagram [1,2] [[3,4],[2,1],[5,6]]\n")
"r")
(list "True"))
(hk-test
"hasAnagram [1,2] [[3,4],[5,6]] False"
(hk-prog-val (str hk-ana-src "r = hasAnagram [1,2] [[3,4],[5,6]]\n") "r")
(list "False"))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,83 +0,0 @@
;; binary.hs — integer binary representation using explicit recursion.
(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-bin-src
"toBits 0 = []\ntoBits n = (n `mod` 2) : toBits (n `div` 2)\n\ntoBin 0 = [0]\ntoBin n = reverse (toBits n)\n\naddBit acc b = acc * 2 + b\nfromBin bits = foldl addBit 0 bits\n\nnumBits 0 = 1\nnumBits n = length (toBits n)\n")
(hk-test
"toBin 0 = [0]"
(hk-as-list (hk-prog-val (str hk-bin-src "r = toBin 0\n") "r"))
(list 0))
(hk-test
"toBin 1 = [1]"
(hk-as-list (hk-prog-val (str hk-bin-src "r = toBin 1\n") "r"))
(list 1))
(hk-test
"toBin 2 = [1,0]"
(hk-as-list (hk-prog-val (str hk-bin-src "r = toBin 2\n") "r"))
(list 1 0))
(hk-test
"toBin 3 = [1,1]"
(hk-as-list (hk-prog-val (str hk-bin-src "r = toBin 3\n") "r"))
(list 1 1))
(hk-test
"toBin 4 = [1,0,0]"
(hk-as-list (hk-prog-val (str hk-bin-src "r = toBin 4\n") "r"))
(list 1 0 0))
(hk-test
"toBin 7 = [1,1,1]"
(hk-as-list (hk-prog-val (str hk-bin-src "r = toBin 7\n") "r"))
(list 1 1 1))
(hk-test
"toBin 8 = [1,0,0,0]"
(hk-as-list (hk-prog-val (str hk-bin-src "r = toBin 8\n") "r"))
(list 1 0 0 0))
(hk-test
"fromBin [0] = 0"
(hk-prog-val (str hk-bin-src "r = fromBin [0]\n") "r")
0)
(hk-test
"fromBin [1] = 1"
(hk-prog-val (str hk-bin-src "r = fromBin [1]\n") "r")
1)
(hk-test
"fromBin [1,0,1] = 5"
(hk-prog-val (str hk-bin-src "r = fromBin [1,0,1]\n") "r")
5)
(hk-test
"fromBin [1,1,1] = 7"
(hk-prog-val (str hk-bin-src "r = fromBin [1,1,1]\n") "r")
7)
(hk-test
"roundtrip: fromBin (toBin 13) = 13"
(hk-prog-val (str hk-bin-src "r = fromBin (toBin 13)\n") "r")
13)
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,55 +0,0 @@
;; calculator.hs — recursive descent expression evaluator.
;;
;; Exercises:
;; - ADTs with constructor fields: TNum Int, TOp String, R Int [Token]
;; - Nested constructor pattern matching: (R v (TOp "+":rest))
;; - let bindings in function bodies
;; - Integer arithmetic including `div` (backtick infix)
;; - Left-associative multi-level operator precedence
(define
hk-prog-val
(fn
(src name)
(hk-deep-force (get (hk-eval-program (hk-core src)) name))))
(define
hk-calc-src
"data Token = TNum Int | TOp String\ndata Result = R Int [Token]\ngetV (R v _) = v\ngetR (R _ r) = r\neval ts = getV (parseExpr ts)\nparseExpr ts = parseExprRest (parseTerm ts)\nparseExprRest (R v (TOp \"+\":rest)) =\n let t = parseTerm rest\n in parseExprRest (R (v + getV t) (getR t))\nparseExprRest (R v (TOp \"-\":rest)) =\n let t = parseTerm rest\n in parseExprRest (R (v - getV t) (getR t))\nparseExprRest r = r\nparseTerm ts = parseTermRest (parseFactor ts)\nparseTermRest (R v (TOp \"*\":rest)) =\n let t = parseFactor rest\n in parseTermRest (R (v * getV t) (getR t))\nparseTermRest (R v (TOp \"/\":rest)) =\n let t = parseFactor rest\n in parseTermRest (R (v `div` getV t) (getR t))\nparseTermRest r = r\nparseFactor (TNum n:rest) = R n rest\n")
(hk-test
"calculator: 2 + 3 = 5"
(hk-prog-val
(str hk-calc-src "result = eval [TNum 2, TOp \"+\", TNum 3]\n")
"result")
5)
(hk-test
"calculator: 2 + 3 * 4 = 14 (precedence)"
(hk-prog-val
(str hk-calc-src "result = eval [TNum 2, TOp \"+\", TNum 3, TOp \"*\", TNum 4]\n")
"result")
14)
(hk-test
"calculator: 10 - 3 - 2 = 5 (left-assoc)"
(hk-prog-val
(str hk-calc-src "result = eval [TNum 10, TOp \"-\", TNum 3, TOp \"-\", TNum 2]\n")
"result")
5)
(hk-test
"calculator: 6 / 2 * 3 = 9 (left-assoc)"
(hk-prog-val
(str hk-calc-src "result = eval [TNum 6, TOp \"/\", TNum 2, TOp \"*\", TNum 3]\n")
"result")
9)
(hk-test
"calculator: single number"
(hk-prog-val
(str hk-calc-src "result = eval [TNum 42]\n")
"result")
42)
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,83 +0,0 @@
;; collatz.hs — Collatz (3n+1) sequences.
(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-prog-val
(fn
(src name)
(hk-deep-force (get (hk-eval-program (hk-core src)) name))))
(define
hk-col-src
"collatz 1 = [1]\ncollatz n = if n `mod` 2 == 0\n then n : collatz (n `div` 2)\n else n : collatz (3 * n + 1)\ncollatzLen n = length (collatz n)\n")
(hk-test
"collatz 1 = [1]"
(hk-as-list (hk-prog-val (str hk-col-src "r = collatz 1\n") "r"))
(list 1))
(hk-test
"collatz 2 = [2,1]"
(hk-as-list (hk-prog-val (str hk-col-src "r = collatz 2\n") "r"))
(list 2 1))
(hk-test
"collatz 4 = [4,2,1]"
(hk-as-list (hk-prog-val (str hk-col-src "r = collatz 4\n") "r"))
(list 4 2 1))
(hk-test
"collatz 6 starts 6,3,10"
(hk-as-list (hk-prog-val (str hk-col-src "r = take 3 (collatz 6)\n") "r"))
(list 6 3 10))
(hk-test
"collatz 8 = [8,4,2,1]"
(hk-as-list (hk-prog-val (str hk-col-src "r = collatz 8\n") "r"))
(list 8 4 2 1))
(hk-test
"collatzLen 1 = 1"
(hk-prog-val (str hk-col-src "r = collatzLen 1\n") "r")
1)
(hk-test
"collatzLen 2 = 2"
(hk-prog-val (str hk-col-src "r = collatzLen 2\n") "r")
2)
(hk-test
"collatzLen 4 = 3"
(hk-prog-val (str hk-col-src "r = collatzLen 4\n") "r")
3)
(hk-test
"collatzLen 8 = 4"
(hk-prog-val (str hk-col-src "r = collatzLen 8\n") "r")
4)
(hk-test
"collatzLen 16 = 5"
(hk-prog-val (str hk-col-src "r = collatzLen 16\n") "r")
5)
(hk-test
"collatz last is always 1"
(hk-prog-val (str hk-col-src "r = last (collatz 27)\n") "r")
1)
(hk-test
"collatz 3 = [3,10,5,16,8,4,2,1]"
(hk-as-list (hk-prog-val (str hk-col-src "r = collatz 3\n") "r"))
(list 3 10 5 16 8 4 2 1))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,83 +0,0 @@
;; either.hs — Either ADT operations via pattern matching.
(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-either-src
"safeDiv _ 0 = Left \"divide by zero\"\nsafeDiv x y = Right (x `div` y)\n\nfromRight _ (Right x) = x\nfromRight def (Left _) = def\n\nfromLeft (Left x) _ = x\nfromLeft _ def = def\n\nisRight (Right _) = True\nisRight (Left _) = False\n\nisLeft (Left _) = True\nisLeft (Right _) = False\n\nmapRight _ (Left e) = Left e\nmapRight f (Right x) = Right (f x)\n\ndouble x = x * 2\n")
(hk-test
"safeDiv 10 2 = Right 5"
(hk-prog-val (str hk-either-src "r = safeDiv 10 2\n") "r")
(list "Right" 5))
(hk-test
"safeDiv 7 0 = Left msg"
(hk-prog-val (str hk-either-src "r = safeDiv 7 0\n") "r")
(list "Left" "divide by zero"))
(hk-test
"fromRight 0 (Right 42) = 42"
(hk-prog-val (str hk-either-src "r = fromRight 0 (Right 42)\n") "r")
42)
(hk-test
"fromRight 0 (Left msg) = 0"
(hk-prog-val (str hk-either-src "r = fromRight 0 (Left \"err\")\n") "r")
0)
(hk-test
"isRight (Right 1) = True"
(hk-prog-val (str hk-either-src "r = isRight (Right 1)\n") "r")
(list "True"))
(hk-test
"isRight (Left x) = False"
(hk-prog-val (str hk-either-src "r = isRight (Left \"x\")\n") "r")
(list "False"))
(hk-test
"isLeft (Left x) = True"
(hk-prog-val (str hk-either-src "r = isLeft (Left \"x\")\n") "r")
(list "True"))
(hk-test
"isLeft (Right x) = False"
(hk-prog-val (str hk-either-src "r = isLeft (Right 1)\n") "r")
(list "False"))
(hk-test
"mapRight double (Right 5) = Right 10"
(hk-prog-val (str hk-either-src "r = mapRight double (Right 5)\n") "r")
(list "Right" 10))
(hk-test
"mapRight double (Left e) = Left e"
(hk-prog-val (str hk-either-src "r = mapRight double (Left \"err\")\n") "r")
(list "Left" "err"))
(hk-test
"chain safeDiv results"
(hk-prog-val (str hk-either-src "r = fromRight (-1) (safeDiv 20 4)\n") "r")
5)
(hk-test
"chain safeDiv error"
(hk-prog-val (str hk-either-src "r = fromRight (-1) (safeDiv 20 0)\n") "r")
-1)
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,45 +0,0 @@
;; fib.hs — infinite Fibonacci stream classic program.
;;
;; The canonical artefact lives at lib/haskell/tests/programs/fib.hs.
;; The source is mirrored here as an SX string because the evaluator
;; doesn't have read-file in the default env. If you change one, keep
;; the other in sync — there's a runner-level cross-check against the
;; expected first-15 list.
(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-fib-source
"zipPlus (x:xs) (y:ys) = x + y : zipPlus xs ys
zipPlus _ _ = []
myFibs = 0 : 1 : zipPlus myFibs (tail myFibs)
result = take 15 myFibs
")
(hk-test
"fib.hs — first 15 Fibonacci numbers"
(hk-as-list (hk-prog-val hk-fib-source "result"))
(list 0 1 1 2 3 5 8 13 21 34 55 89 144 233 377))
;; Spot-check that the user-defined zipPlus is also reachable
(hk-test
"fib.hs — zipPlus is a multi-clause user fn"
(hk-as-list
(hk-prog-val
(str hk-fib-source "extra = zipPlus [1, 2, 3] [10, 20, 30]\n")
"extra"))
(list 11 22 33))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,84 +0,0 @@
;; fizzbuzz.hs — classic FizzBuzz with guards.
(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-fb-src
"fizzbuzz n\n | n `mod` 15 == 0 = \"FizzBuzz\"\n | n `mod` 3 == 0 = \"Fizz\"\n | n `mod` 5 == 0 = \"Buzz\"\n | otherwise = \"Other\"\n")
(hk-test
"fizzbuzz 1 = Other"
(hk-prog-val (str hk-fb-src "r = fizzbuzz 1\n") "r")
"Other")
(hk-test
"fizzbuzz 3 = Fizz"
(hk-prog-val (str hk-fb-src "r = fizzbuzz 3\n") "r")
"Fizz")
(hk-test
"fizzbuzz 5 = Buzz"
(hk-prog-val (str hk-fb-src "r = fizzbuzz 5\n") "r")
"Buzz")
(hk-test
"fizzbuzz 15 = FizzBuzz"
(hk-prog-val (str hk-fb-src "r = fizzbuzz 15\n") "r")
"FizzBuzz")
(hk-test
"fizzbuzz 30 = FizzBuzz"
(hk-prog-val (str hk-fb-src "r = fizzbuzz 30\n") "r")
"FizzBuzz")
(hk-test
"fizzbuzz 6 = Fizz"
(hk-prog-val (str hk-fb-src "r = fizzbuzz 6\n") "r")
"Fizz")
(hk-test
"fizzbuzz 10 = Buzz"
(hk-prog-val (str hk-fb-src "r = fizzbuzz 10\n") "r")
"Buzz")
(hk-test
"fizzbuzz 7 = Other"
(hk-prog-val (str hk-fb-src "r = fizzbuzz 7\n") "r")
"Other")
(hk-test
"fizzbuzz 9 = Fizz"
(hk-prog-val (str hk-fb-src "r = fizzbuzz 9\n") "r")
"Fizz")
(hk-test
"fizzbuzz 25 = Buzz"
(hk-prog-val (str hk-fb-src "r = fizzbuzz 25\n") "r")
"Buzz")
(hk-test
"map fizzbuzz [1..5] starts Other"
(hk-as-list
(hk-prog-val (str hk-fb-src "r = map fizzbuzz [1,2,3,4,5]\n") "r"))
(list "Other" "Other" "Fizz" "Other" "Buzz"))
(hk-test
"fizzbuzz 45 = FizzBuzz"
(hk-prog-val (str hk-fb-src "r = fizzbuzz 45\n") "r")
"FizzBuzz")
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,49 +0,0 @@
;; program-io.sx — tests for real IO monad (putStrLn, print, putStr).
(hk-test
"putStrLn single line"
(hk-run-io "main = putStrLn \"hello\"")
(list "hello"))
(hk-test
"putStrLn two lines via do"
(hk-run-io "main = do { putStrLn \"a\"; putStrLn \"b\" }")
(list "a" "b"))
(hk-test "print Int" (hk-run-io "main = print 42") (list "42"))
(hk-test "print Bool True" (hk-run-io "main = print True") (list "True"))
(hk-test
"putStr collects string"
(hk-run-io "main = putStr \"hello\"")
(list "hello"))
(hk-test
"do with let then putStrLn"
(hk-run-io "main = do\n let s = \"world\"\n putStrLn s")
(list "world"))
(hk-test
"do sequence three lines"
(hk-run-io "main = do { putStrLn \"1\"; putStrLn \"2\"; putStrLn \"3\" }")
(list "1" "2" "3"))
(hk-test
"print computed value"
(hk-run-io "main = print (6 * 7)")
(list "42"))
(hk-test
"putStrLn returns IO unit"
(hk-deep-force (hk-run "main = putStrLn \"hi\""))
(list "IO" (list "Tuple")))
(hk-test
"hk-run-io resets between calls"
(begin
(hk-run-io "main = putStrLn \"first\"")
(hk-run-io "main = putStrLn \"second\""))
(list "second"))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,84 +0,0 @@
;; matrix.hs — transpose and 2D list operations.
(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-mat-src
"transpose [] = []\ntranspose ([] : _) = []\ntranspose xss = map head xss : transpose (map tail xss)\n\nmatAdd xss yss = zipWith (zipWith (+)) xss yss\n\ndiagonal [] = []\ndiagonal xss = head (head xss) : diagonal (map tail (tail xss))\n\nrowSum = map sum\ncolSum xss = map sum (transpose xss)\n")
(hk-test
"transpose 2x2"
(hk-deep-force
(hk-prog-val (str hk-mat-src "r = transpose [[1,2],[3,4]]\n") "r"))
(list
":"
(list ":" 1 (list ":" 3 (list "[]")))
(list ":" (list ":" 2 (list ":" 4 (list "[]"))) (list "[]"))))
(hk-test
"transpose 1x3"
(hk-deep-force
(hk-prog-val (str hk-mat-src "r = transpose [[1,2,3]]\n") "r"))
(list
":"
(list ":" 1 (list "[]"))
(list
":"
(list ":" 2 (list "[]"))
(list ":" (list ":" 3 (list "[]")) (list "[]")))))
(hk-test
"transpose empty = []"
(hk-as-list (hk-prog-val (str hk-mat-src "r = transpose []\n") "r"))
(list))
(hk-test
"rowSum [[1,2],[3,4]] = [3,7]"
(hk-as-list (hk-prog-val (str hk-mat-src "r = rowSum [[1,2],[3,4]]\n") "r"))
(list 3 7))
(hk-test
"colSum [[1,2],[3,4]] = [4,6]"
(hk-as-list (hk-prog-val (str hk-mat-src "r = colSum [[1,2],[3,4]]\n") "r"))
(list 4 6))
(hk-test
"matAdd [[1,2],[3,4]] [[5,6],[7,8]] = [[6,8],[10,12]]"
(hk-deep-force
(hk-prog-val
(str hk-mat-src "r = matAdd [[1,2],[3,4]] [[5,6],[7,8]]\n")
"r"))
(list
":"
(list ":" 6 (list ":" 8 (list "[]")))
(list ":" (list ":" 10 (list ":" 12 (list "[]"))) (list "[]"))))
(hk-test
"diagonal [[1,2],[3,4]] = [1,4]"
(hk-as-list
(hk-prog-val (str hk-mat-src "r = diagonal [[1,2],[3,4]]\n") "r"))
(list 1 4))
(hk-test
"diagonal 3x3"
(hk-as-list
(hk-prog-val
(str hk-mat-src "r = diagonal [[1,2,3],[4,5,6],[7,8,9]]\n")
"r"))
(list 1 5 9))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,83 +0,0 @@
;; maybe.hs — safe operations returning Maybe values.
(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-maybe-src
"safeDiv _ 0 = Nothing\nsafeDiv x y = Just (x `div` y)\n\nsafeHead [] = Nothing\nsafeHead (x:_) = Just x\n\nfromMaybeZero Nothing = 0\nfromMaybeZero (Just x) = x\n\nmapMaybe _ Nothing = Nothing\nmapMaybe f (Just x) = Just (f x)\n\ndouble x = x * 2\n")
(hk-test
"safeDiv 10 2 = Just 5"
(hk-prog-val (str hk-maybe-src "r = safeDiv 10 2\n") "r")
(list "Just" 5))
(hk-test
"safeDiv 7 0 = Nothing"
(hk-prog-val (str hk-maybe-src "r = safeDiv 7 0\n") "r")
(list "Nothing"))
(hk-test
"safeHead [1,2,3] = Just 1"
(hk-prog-val (str hk-maybe-src "r = safeHead [1,2,3]\n") "r")
(list "Just" 1))
(hk-test
"safeHead [] = Nothing"
(hk-prog-val (str hk-maybe-src "r = safeHead []\n") "r")
(list "Nothing"))
(hk-test
"fromMaybeZero Nothing = 0"
(hk-prog-val (str hk-maybe-src "r = fromMaybeZero Nothing\n") "r")
0)
(hk-test
"fromMaybeZero (Just 42) = 42"
(hk-prog-val (str hk-maybe-src "r = fromMaybeZero (Just 42)\n") "r")
42)
(hk-test
"mapMaybe double Nothing = Nothing"
(hk-prog-val (str hk-maybe-src "r = mapMaybe double Nothing\n") "r")
(list "Nothing"))
(hk-test
"mapMaybe double (Just 5) = Just 10"
(hk-prog-val (str hk-maybe-src "r = mapMaybe double (Just 5)\n") "r")
(list "Just" 10))
(hk-test
"chain: fromMaybeZero (safeDiv 10 2) = 5"
(hk-prog-val (str hk-maybe-src "r = fromMaybeZero (safeDiv 10 2)\n") "r")
5)
(hk-test
"chain: fromMaybeZero (safeDiv 10 0) = 0"
(hk-prog-val (str hk-maybe-src "r = fromMaybeZero (safeDiv 10 0)\n") "r")
0)
(hk-test
"safeDiv 100 5 = Just 20"
(hk-prog-val (str hk-maybe-src "r = safeDiv 100 5\n") "r")
(list "Just" 20))
(hk-test
"mapMaybe double (safeDiv 6 2) = Just 6"
(hk-prog-val (str hk-maybe-src "r = mapMaybe double (safeDiv 6 2)\n") "r")
(list "Just" 6))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,38 +0,0 @@
;; nqueens.hs — n-queens solver via list comprehension + where.
;;
;; Also exercises:
;; - multi-clause let/where binding (go 0 = ...; go k = ...)
;; - list comprehensions (desugared to concatMap)
;; - abs (from Prelude)
;; - [1..n] finite range
;;
;; n=8 is too slow for a 60s timeout; n=4 and n=5 run in ~17s combined.
(define
hk-prog-val
(fn
(src name)
(hk-deep-force (get (hk-eval-program (hk-core src)) name))))
(define
hk-nq-base
"queens n = go n
where
go 0 = [[]]
go k = [q:qs | qs <- go (k - 1), q <- [1..n], safe q qs]
safe q qs = check q qs 1
check q [] _ = True
check q (c:cs) d = q /= c && abs (q - c) /= d && check q cs (d + 1)
")
(hk-test
"nqueens: queens 4 has 2 solutions"
(hk-prog-val (str hk-nq-base "result = length (queens 4)\n") "result")
2)
(hk-test
"nqueens: queens 5 has 10 solutions"
(hk-prog-val (str hk-nq-base "result = length (queens 5)\n") "result")
10)
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,86 +0,0 @@
;; palindrome.hs — palindrome check via reverse comparison.
(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-prog-val
(fn
(src name)
(hk-deep-force (get (hk-eval-program (hk-core src)) name))))
(define hk-pal-src "isPalindrome xs = xs == reverse xs\n")
(hk-test
"isPalindrome empty"
(hk-prog-val (str hk-pal-src "r = isPalindrome []\n") "r")
(list "True"))
(hk-test
"isPalindrome single"
(hk-prog-val (str hk-pal-src "r = isPalindrome [1]\n") "r")
(list "True"))
(hk-test
"isPalindrome [1,2,1] True"
(hk-prog-val (str hk-pal-src "r = isPalindrome [1,2,1]\n") "r")
(list "True"))
(hk-test
"isPalindrome [1,2,3] False"
(hk-prog-val (str hk-pal-src "r = isPalindrome [1,2,3]\n") "r")
(list "False"))
(hk-test
"isPalindrome [1,2,2,1] True"
(hk-prog-val (str hk-pal-src "r = isPalindrome [1,2,2,1]\n") "r")
(list "True"))
(hk-test
"isPalindrome [1,2,3,4] False"
(hk-prog-val (str hk-pal-src "r = isPalindrome [1,2,3,4]\n") "r")
(list "False"))
(hk-test
"isPalindrome five odd True"
(hk-prog-val (str hk-pal-src "r = isPalindrome [1,2,3,2,1]\n") "r")
(list "True"))
(hk-test
"isPalindrome racecar True"
(hk-prog-val (str hk-pal-src "r = isPalindrome \"racecar\"\n") "r")
(list "True"))
(hk-test
"isPalindrome hello False"
(hk-prog-val (str hk-pal-src "r = isPalindrome \"hello\"\n") "r")
(list "False"))
(hk-test
"isPalindrome a True"
(hk-prog-val (str hk-pal-src "r = isPalindrome \"a\"\n") "r")
(list "True"))
(hk-test
"isPalindrome madam True"
(hk-prog-val (str hk-pal-src "r = isPalindrome \"madam\"\n") "r")
(list "True"))
(hk-test
"not-palindrome via map"
(hk-as-list
(hk-prog-val
(str hk-pal-src "r = filter isPalindrome [[1],[1,2],[1,2,1],[2,3]]\n")
"r"))
(list
(list ":" 1 (list "[]"))
(list ":" 1 (list ":" 2 (list ":" 1 (list "[]"))))))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,78 +0,0 @@
;; powers.hs — integer exponentiation and powers-of-2 checks.
(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-pow-src
"pow _ 0 = 1\npow base n = base * pow base (n - 1)\n\npowers base k = map (pow base) [0..k]\n\nisPowerOf2 n\n | n <= 0 = False\n | n == 1 = True\n | otherwise = n `mod` 2 == 0 && isPowerOf2 (n `div` 2)\n\nlog2 1 = 0\nlog2 n = 1 + log2 (n `div` 2)\n")
(hk-test "pow 2 0 = 1" (hk-prog-val (str hk-pow-src "r = pow 2 0\n") "r") 1)
(hk-test "pow 2 1 = 2" (hk-prog-val (str hk-pow-src "r = pow 2 1\n") "r") 2)
(hk-test
"pow 2 8 = 256"
(hk-prog-val (str hk-pow-src "r = pow 2 8\n") "r")
256)
(hk-test "pow 3 4 = 81" (hk-prog-val (str hk-pow-src "r = pow 3 4\n") "r") 81)
(hk-test
"pow 10 3 = 1000"
(hk-prog-val (str hk-pow-src "r = pow 10 3\n") "r")
1000)
(hk-test
"powers 2 4 = [1,2,4,8,16]"
(hk-as-list (hk-prog-val (str hk-pow-src "r = powers 2 4\n") "r"))
(list 1 2 4 8 16))
(hk-test
"powers 3 3 = [1,3,9,27]"
(hk-as-list (hk-prog-val (str hk-pow-src "r = powers 3 3\n") "r"))
(list 1 3 9 27))
(hk-test
"isPowerOf2 1 = True"
(hk-prog-val (str hk-pow-src "r = isPowerOf2 1\n") "r")
(list "True"))
(hk-test
"isPowerOf2 8 = True"
(hk-prog-val (str hk-pow-src "r = isPowerOf2 8\n") "r")
(list "True"))
(hk-test
"isPowerOf2 6 = False"
(hk-prog-val (str hk-pow-src "r = isPowerOf2 6\n") "r")
(list "False"))
(hk-test
"isPowerOf2 0 = False"
(hk-prog-val (str hk-pow-src "r = isPowerOf2 0\n") "r")
(list "False"))
(hk-test "log2 1 = 0" (hk-prog-val (str hk-pow-src "r = log2 1\n") "r") 0)
(hk-test "log2 8 = 3" (hk-prog-val (str hk-pow-src "r = log2 8\n") "r") 3)
(hk-test
"log2 1024 = 10"
(hk-prog-val (str hk-pow-src "r = log2 1024\n") "r")
10)
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,83 +0,0 @@
;; primes.hs — primality testing via trial division with where clauses.
(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-primes-src
"isPrime n\n | n < 2 = False\n | n == 2 = True\n | otherwise = all notDiv [2..n-1]\n where notDiv d = n `mod` d /= 0\n\nprimes20 = filter isPrime [2..20]\n\nnextPrime n = head (filter isPrime [n+1..])\n\ncountPrimes lo hi = length (filter isPrime [lo..hi])\n")
(hk-test
"isPrime 2 = True"
(hk-prog-val (str hk-primes-src "r = isPrime 2\n") "r")
(list "True"))
(hk-test
"isPrime 3 = True"
(hk-prog-val (str hk-primes-src "r = isPrime 3\n") "r")
(list "True"))
(hk-test
"isPrime 4 = False"
(hk-prog-val (str hk-primes-src "r = isPrime 4\n") "r")
(list "False"))
(hk-test
"isPrime 5 = True"
(hk-prog-val (str hk-primes-src "r = isPrime 5\n") "r")
(list "True"))
(hk-test
"isPrime 1 = False"
(hk-prog-val (str hk-primes-src "r = isPrime 1\n") "r")
(list "False"))
(hk-test
"isPrime 0 = False"
(hk-prog-val (str hk-primes-src "r = isPrime 0\n") "r")
(list "False"))
(hk-test
"isPrime 7 = True"
(hk-prog-val (str hk-primes-src "r = isPrime 7\n") "r")
(list "True"))
(hk-test
"isPrime 9 = False"
(hk-prog-val (str hk-primes-src "r = isPrime 9\n") "r")
(list "False"))
(hk-test
"isPrime 11 = True"
(hk-prog-val (str hk-primes-src "r = isPrime 11\n") "r")
(list "True"))
(hk-test
"primes20 = [2,3,5,7,11,13,17,19]"
(hk-as-list (hk-prog-val (str hk-primes-src "r = primes20\n") "r"))
(list 2 3 5 7 11 13 17 19))
(hk-test
"countPrimes 1 10 = 4"
(hk-prog-val (str hk-primes-src "r = countPrimes 1 10\n") "r")
4)
(hk-test
"nextPrime 10 = 11"
(hk-prog-val (str hk-primes-src "r = nextPrime 10\n") "r")
11)
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,65 +0,0 @@
;; quicksort.hs — naive functional quicksort.
(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-prog-val
(fn
(src name)
(hk-deep-force (get (hk-eval-program (hk-core src)) name))))
(define
hk-qs-source
"qsort [] = []
qsort (x:xs) = qsort smaller ++ [x] ++ qsort larger
where
smaller = filter (< x) xs
larger = filter (>= x) xs
result = qsort [3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5]
")
(hk-test
"quicksort.hs — sort a list of ints"
(hk-as-list (hk-prog-val hk-qs-source "result"))
(list 1 1 2 3 3 4 5 5 5 6 9))
(hk-test
"quicksort.hs — empty list"
(hk-as-list
(hk-prog-val
(str hk-qs-source "e = qsort []\n")
"e"))
(list))
(hk-test
"quicksort.hs — singleton"
(hk-as-list
(hk-prog-val
(str hk-qs-source "s = qsort [42]\n")
"s"))
(list 42))
(hk-test
"quicksort.hs — already sorted"
(hk-as-list
(hk-prog-val
(str hk-qs-source "asc = qsort [1, 2, 3, 4, 5]\n")
"asc"))
(list 1 2 3 4 5))
(hk-test
"quicksort.hs — reverse sorted"
(hk-as-list
(hk-prog-val
(str hk-qs-source "desc = qsort [5, 4, 3, 2, 1]\n")
"desc"))
(list 1 2 3 4 5))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,83 +0,0 @@
;; roman.hs — convert integers to Roman numerals with guards + ++.
(define
hk-prog-val
(fn
(src name)
(hk-deep-force (get (hk-eval-program (hk-core src)) name))))
(define
hk-rom-src
"toRoman 0 = \"\"\ntoRoman n\n | n >= 1000 = \"M\" ++ toRoman (n - 1000)\n | n >= 900 = \"CM\" ++ toRoman (n - 900)\n | n >= 500 = \"D\" ++ toRoman (n - 500)\n | n >= 400 = \"CD\" ++ toRoman (n - 400)\n | n >= 100 = \"C\" ++ toRoman (n - 100)\n | n >= 90 = \"XC\" ++ toRoman (n - 90)\n | n >= 50 = \"L\" ++ toRoman (n - 50)\n | n >= 40 = \"XL\" ++ toRoman (n - 40)\n | n >= 10 = \"X\" ++ toRoman (n - 10)\n | n >= 9 = \"IX\" ++ toRoman (n - 9)\n | n >= 5 = \"V\" ++ toRoman (n - 5)\n | n >= 4 = \"IV\" ++ toRoman (n - 4)\n | otherwise = \"I\" ++ toRoman (n - 1)\n")
(hk-test
"toRoman 1 = I"
(hk-prog-val (str hk-rom-src "r = toRoman 1\n") "r")
"I")
(hk-test
"toRoman 4 = IV"
(hk-prog-val (str hk-rom-src "r = toRoman 4\n") "r")
"IV")
(hk-test
"toRoman 5 = V"
(hk-prog-val (str hk-rom-src "r = toRoman 5\n") "r")
"V")
(hk-test
"toRoman 9 = IX"
(hk-prog-val (str hk-rom-src "r = toRoman 9\n") "r")
"IX")
(hk-test
"toRoman 10 = X"
(hk-prog-val (str hk-rom-src "r = toRoman 10\n") "r")
"X")
(hk-test
"toRoman 14 = XIV"
(hk-prog-val (str hk-rom-src "r = toRoman 14\n") "r")
"XIV")
(hk-test
"toRoman 40 = XL"
(hk-prog-val (str hk-rom-src "r = toRoman 40\n") "r")
"XL")
(hk-test
"toRoman 50 = L"
(hk-prog-val (str hk-rom-src "r = toRoman 50\n") "r")
"L")
(hk-test
"toRoman 90 = XC"
(hk-prog-val (str hk-rom-src "r = toRoman 90\n") "r")
"XC")
(hk-test
"toRoman 100 = C"
(hk-prog-val (str hk-rom-src "r = toRoman 100\n") "r")
"C")
(hk-test
"toRoman 400 = CD"
(hk-prog-val (str hk-rom-src "r = toRoman 400\n") "r")
"CD")
(hk-test
"toRoman 1000 = M"
(hk-prog-val (str hk-rom-src "r = toRoman 1000\n") "r")
"M")
(hk-test
"toRoman 1994 = MCMXCIV"
(hk-prog-val (str hk-rom-src "r = toRoman 1994\n") "r")
"MCMXCIV")
(hk-test
"toRoman 58 = LVIII"
(hk-prog-val (str hk-rom-src "r = toRoman 58\n") "r")
"LVIII")
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

View File

@@ -1,48 +0,0 @@
;; sieve.hs — lazy sieve of Eratosthenes.
;;
;; The canonical artefact lives at lib/haskell/tests/programs/sieve.hs.
;; Mirrored here as an SX string because the default eval env has no
;; read-file. Uses filter + backtick `mod` + lazy [2..] — all of which
;; are now wired in via Phase 3 + the mod/div additions to hk-binop.
(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-prog-val
(fn
(src name)
(hk-deep-force (get (hk-eval-program (hk-core src)) name))))
(define
hk-sieve-source
"sieve (p:xs) = p : sieve (filter (\\x -> x `mod` p /= 0) xs)
sieve [] = []
primes = sieve [2..]
result = take 10 primes
")
(hk-test
"sieve.hs — first 10 primes"
(hk-as-list (hk-prog-val hk-sieve-source "result"))
(list 2 3 5 7 11 13 17 19 23 29))
(hk-test
"sieve.hs — 20th prime is 71"
(nth
(hk-as-list
(hk-prog-val
(str
hk-sieve-source
"result20 = take 20 primes\n")
"result20"))
19)
71)
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

View File

@@ -1,74 +0,0 @@
;; wordcount.hs — word and line counting via string splitting.
(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-wc-src
"wordCount s = length (words s)\nlineCount s = length (lines s)\ncharCount = length\n\nlongestWord s = foldl longer \"\" (words s)\n where longer a b = if length a >= length b then a else b\n\nshortestWord s = foldl shorter (head (words s)) (words s)\n where shorter a b = if length a <= length b then a else b\n\nuniqueWords s = nub (words s)\n")
(hk-test
"wordCount single word"
(hk-prog-val (str hk-wc-src "r = wordCount \"hello\"\n") "r")
1)
(hk-test
"wordCount two words"
(hk-prog-val (str hk-wc-src "r = wordCount \"hello world\"\n") "r")
2)
(hk-test
"wordCount with extra spaces"
(hk-prog-val (str hk-wc-src "r = wordCount \" foo bar \"\n") "r")
2)
(hk-test
"wordCount empty = 0"
(hk-prog-val (str hk-wc-src "r = wordCount \"\"\n") "r")
0)
(hk-test
"lineCount one line"
(hk-prog-val (str hk-wc-src "r = lineCount \"hello\"\n") "r")
1)
(hk-test
"lineCount two lines"
(hk-prog-val (str hk-wc-src "r = lineCount \"a\\nb\"\n") "r")
2)
(hk-test
"charCount \"hello\" = 5"
(hk-prog-val (str hk-wc-src "r = charCount \"hello\"\n") "r")
5)
(hk-test
"charCount empty = 0"
(hk-prog-val (str hk-wc-src "r = charCount \"\"\n") "r")
0)
(hk-test
"longestWord picks longest"
(hk-prog-val (str hk-wc-src "r = longestWord \"a bb ccc\"\n") "r")
"ccc")
(hk-test
"uniqueWords removes duplicates"
(hk-as-list
(hk-prog-val (str hk-wc-src "r = uniqueWords \"a b a c b\"\n") "r"))
(list "a" "b" "c"))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

View File

@@ -1,74 +0,0 @@
;; zipwith.hs — zip, zipWith, unzip operations.
(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-zip-src
"addPair (x, y) = x + y\npairSum xs ys = map addPair (zip xs ys)\n\nscaleBy k xs = map (\\x -> x * k) xs\n\ndotProduct xs ys = sum (zipWith (*) xs ys)\n\nzipIndex xs = zip [0..length xs - 1] xs\n")
(hk-test
"zip two lists"
(hk-as-list (hk-prog-val (str hk-zip-src "r = zip [1,2,3] [4,5,6]\n") "r"))
(list (list "Tuple" 1 4) (list "Tuple" 2 5) (list "Tuple" 3 6)))
(hk-test
"zip unequal lengths — shorter wins"
(hk-as-list (hk-prog-val (str hk-zip-src "r = zip [1,2] [10,20,30]\n") "r"))
(list (list "Tuple" 1 10) (list "Tuple" 2 20)))
(hk-test
"zipWith (+)"
(hk-as-list
(hk-prog-val (str hk-zip-src "r = zipWith (+) [1,2,3] [10,20,30]\n") "r"))
(list 11 22 33))
(hk-test
"zipWith (*)"
(hk-as-list
(hk-prog-val (str hk-zip-src "r = zipWith (*) [2,3,4] [10,10,10]\n") "r"))
(list 20 30 40))
(hk-test
"dotProduct [1,2,3] [4,5,6] = 32"
(hk-prog-val (str hk-zip-src "r = dotProduct [1,2,3] [4,5,6]\n") "r")
32)
(hk-test
"dotProduct unit vectors = 0"
(hk-prog-val (str hk-zip-src "r = dotProduct [1,0] [0,1]\n") "r")
0)
(hk-test
"pairSum adds element-wise"
(hk-as-list
(hk-prog-val (str hk-zip-src "r = pairSum [1,2,3] [4,5,6]\n") "r"))
(list 5 7 9))
(hk-test
"unzip separates pairs"
(hk-prog-val (str hk-zip-src "r = unzip [(1,2),(3,4),(5,6)]\n") "r")
(list
"Tuple"
(list ":" 1 (list ":" 3 (list ":" 5 (list "[]"))))
(list ":" 2 (list ":" 4 (list ":" 6 (list "[]"))))))
(hk-test
"zip empty = []"
(hk-as-list (hk-prog-val (str hk-zip-src "r = zip [] [1,2,3]\n") "r"))
(list))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,40 +0,0 @@
-- calculator.hs — recursive descent expression evaluator.
--
-- Tokens are represented as an ADT; the parser threads a [Token] list
-- through a custom Result type so pattern matching can destructure the
-- pair (value, remaining-tokens) directly inside constructor patterns.
--
-- Operator precedence: * and / bind tighter than + and -.
-- All operators are left-associative.
data Token = TNum Int | TOp String
data Result = R Int [Token]
getV (R v _) = v
getR (R _ r) = r
eval ts = getV (parseExpr ts)
parseExpr ts = parseExprRest (parseTerm ts)
parseExprRest (R v (TOp "+":rest)) =
let t = parseTerm rest
in parseExprRest (R (v + getV t) (getR t))
parseExprRest (R v (TOp "-":rest)) =
let t = parseTerm rest
in parseExprRest (R (v - getV t) (getR t))
parseExprRest r = r
parseTerm ts = parseTermRest (parseFactor ts)
parseTermRest (R v (TOp "*":rest)) =
let t = parseFactor rest
in parseTermRest (R (v * getV t) (getR t))
parseTermRest (R v (TOp "/":rest)) =
let t = parseFactor rest
in parseTermRest (R (v `div` getV t) (getR t))
parseTermRest r = r
parseFactor (TNum n:rest) = R n rest
result = eval [TNum 2, TOp "+", TNum 3, TOp "*", TNum 4]

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@@ -1,15 +0,0 @@
-- fib.hs — infinite Fibonacci stream.
--
-- The classic two-line definition: `fibs` is a self-referential
-- lazy list built by zipping itself with its own tail, summing the
-- pair at each step. Without lazy `:` (cons cell with thunked head
-- and tail) this would diverge before producing any output; with
-- it, `take 15 fibs` evaluates exactly as much of the spine as
-- demanded.
zipPlus (x:xs) (y:ys) = x + y : zipPlus xs ys
zipPlus _ _ = []
myFibs = 0 : 1 : zipPlus myFibs (tail myFibs)
result = take 15 myFibs

View File

@@ -1,18 +0,0 @@
-- nqueens.hs — n-queens backtracking solver.
--
-- `queens n` returns all solutions as lists of column positions,
-- one per row. Each call to `go k` extends all partial `(k-1)`-row
-- solutions by one safe queen, using a list comprehension whose guard
-- checks the new queen against all already-placed queens.
queens n = go n
where
go 0 = [[]]
go k = [q:qs | qs <- go (k - 1), q <- [1..n], safe q qs]
safe q qs = check q qs 1
check q [] _ = True
check q (c:cs) d = q /= c && abs (q - c) /= d && check q cs (d + 1)
result = length (queens 8)

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@@ -1,12 +0,0 @@
-- quicksort.hs — naive functional quicksort.
--
-- Partition by pivot, recurse on each half, concatenate.
-- Uses right sections `(< x)` and `(>= x)` with filter.
qsort [] = []
qsort (x:xs) = qsort smaller ++ [x] ++ qsort larger
where
smaller = filter (< x) xs
larger = filter (>= x) xs
result = qsort [3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5]

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@@ -1,13 +0,0 @@
-- sieve.hs — lazy sieve of Eratosthenes.
--
-- Each recursive call to `sieve` consumes one prime `p` off the front
-- of the input stream and produces an infinite stream of composites
-- filtered out via `filter`. Because cons is lazy, only as much of
-- the stream is forced as demanded by `take`.
sieve (p:xs) = p : sieve (filter (\x -> x `mod` p /= 0) xs)
sieve [] = []
primes = sieve [2..]
result = take 10 primes

View File

@@ -1,127 +1,451 @@
;; Runtime constructor-registry tests. Built-ins are pre-registered
;; when lib/haskell/runtime.sx loads; user types are registered by
;; walking a parsed+desugared AST with hk-register-program! (or the
;; `hk-load-source!` convenience).
;; lib/haskell/tests/runtime.sx — smoke-tests for lib/haskell/runtime.sx
;;
;; Uses the same hk-test framework as tests/parse.sx.
;; Loaded by test.sh after: tokenizer.sx + runtime.sx are pre-loaded.
;; ── Pre-registered built-ins ──
(hk-test "True is a con" (hk-is-con? "True") true)
(hk-test "False is a con" (hk-is-con? "False") true)
(hk-test "[] is a con" (hk-is-con? "[]") true)
(hk-test ": (cons) is a con" (hk-is-con? ":") true)
(hk-test "() is a con" (hk-is-con? "()") true)
;; ---------------------------------------------------------------------------
;; Test framework boilerplate (mirrors parse.sx)
;; ---------------------------------------------------------------------------
(hk-test "True arity 0" (hk-con-arity "True") 0)
(hk-test ": arity 2" (hk-con-arity ":") 2)
(hk-test "[] arity 0" (hk-con-arity "[]") 0)
(hk-test "True type Bool" (hk-con-type "True") "Bool")
(hk-test "False type Bool" (hk-con-type "False") "Bool")
(hk-test ": type List" (hk-con-type ":") "List")
(hk-test "() type Unit" (hk-con-type "()") "Unit")
(define hk-test-pass 0)
(define hk-test-fail 0)
(define hk-test-fails (list))
;; ── Unknown names ──
(hk-test "is-con? false for varid" (hk-is-con? "foo") false)
(hk-test "arity nil for unknown" (hk-con-arity "NotACon") nil)
(hk-test "type nil for unknown" (hk-con-type "NotACon") nil)
;; ── data MyBool = Yes | No ──
(hk-test
"register simple data"
(define
(hk-test name actual expected)
(if
(= actual expected)
(set! hk-test-pass (+ hk-test-pass 1))
(do
(hk-load-source! "data MyBool = Yes | No")
(list
(hk-con-arity "Yes")
(hk-con-arity "No")
(hk-con-type "Yes")
(hk-con-type "No")))
(list 0 0 "MyBool" "MyBool"))
(set! hk-test-fail (+ hk-test-fail 1))
(append! hk-test-fails {:actual actual :expected expected :name name}))))
;; ── data Maybe a = Nothing | Just a ──
(hk-test
"register Maybe"
(do
(hk-load-source! "data Maybe a = Nothing | Just a")
(list
(hk-con-arity "Nothing")
(hk-con-arity "Just")
(hk-con-type "Nothing")
(hk-con-type "Just")))
(list 0 1 "Maybe" "Maybe"))
;; ---------------------------------------------------------------------------
;; 1. Numeric type class helpers
;; ---------------------------------------------------------------------------
;; ── data Either a b = Left a | Right b ──
(hk-test
"register Either"
(do
(hk-load-source! "data Either a b = Left a | Right b")
(list
(hk-con-arity "Left")
(hk-con-arity "Right")
(hk-con-type "Left")
(hk-con-type "Right")))
(list 1 1 "Either" "Either"))
(hk-test "is-integer? int" (hk-is-integer? 42) true)
(hk-test "is-integer? float" (hk-is-integer? 1.5) false)
(hk-test "is-float? float" (hk-is-float? 3.14) true)
(hk-test "is-float? int" (hk-is-float? 3) false)
(hk-test "is-num? int" (hk-is-num? 10) true)
(hk-test "is-num? float" (hk-is-num? 1) true)
;; ── Recursive data ──
(hk-test
"register recursive Tree"
(do
(hk-load-source!
"data Tree a = Leaf | Node (Tree a) a (Tree a)")
(list
(hk-con-arity "Leaf")
(hk-con-arity "Node")
(hk-con-type "Leaf")
(hk-con-type "Node")))
(list 0 3 "Tree" "Tree"))
(hk-test "to-float" (hk-to-float 5) 5)
(hk-test "to-integer trunc" (hk-to-integer 3.7) 3)
;; ── newtype ──
(hk-test
"register newtype"
(do
(hk-load-source! "newtype Age = MkAge Int")
(list
(hk-con-arity "MkAge")
(hk-con-type "MkAge")))
(list 1 "Age"))
(hk-test "div pos pos" (hk-div 7 2) 3)
(hk-test "div neg pos" (hk-div -7 2) -4)
(hk-test "div pos neg" (hk-div 7 -2) -4)
(hk-test "div neg neg" (hk-div -7 -2) 3)
(hk-test "div exact" (hk-div 6 2) 3)
;; ── Multiple data decls in one program ──
(hk-test
"multiple data decls"
(do
(hk-load-source!
"data Color = Red | Green | Blue\ndata Shape = Circle | Square\nf x = x")
(list
(hk-con-type "Red")
(hk-con-type "Green")
(hk-con-type "Blue")
(hk-con-type "Circle")
(hk-con-type "Square")))
(list "Color" "Color" "Color" "Shape" "Shape"))
(hk-test "mod pos pos" (hk-mod 10 3) 1)
(hk-test "mod neg pos" (hk-mod -7 3) 2)
(hk-test "rem pos pos" (hk-rem 10 3) 1)
(hk-test "rem neg pos" (hk-rem -7 3) -1)
;; ── Inside a module header ──
(hk-test
"register from module body"
(do
(hk-load-source!
"module M where\ndata Pair a = Pair a a")
(list
(hk-con-arity "Pair")
(hk-con-type "Pair")))
(list 2 "Pair"))
(hk-test "abs pos" (hk-abs 5) 5)
(hk-test "abs neg" (hk-abs -5) 5)
(hk-test "signum pos" (hk-signum 42) 1)
(hk-test "signum neg" (hk-signum -7) -1)
(hk-test "signum zero" (hk-signum 0) 0)
;; ── Non-data decls are ignored ──
(hk-test
"program with only fun-decl leaves registry unchanged for that name"
(do
(hk-load-source! "myFunctionNotACon x = x + 1")
(hk-is-con? "myFunctionNotACon"))
false)
(hk-test "gcd" (hk-gcd 12 8) 4)
(hk-test "lcm" (hk-lcm 4 6) 12)
(hk-test "even?" (hk-even? 4) true)
(hk-test "even? odd" (hk-even? 3) false)
(hk-test "odd?" (hk-odd? 7) true)
;; ── Re-registering overwrites (last wins) ──
(hk-test
"re-registration overwrites the entry"
;; ---------------------------------------------------------------------------
;; 2. Rational numbers
;; ---------------------------------------------------------------------------
(let
((r (hk-make-rational 1 2)))
(do
(hk-load-source! "data Foo = Bar Int")
(hk-load-source! "data Foo = Bar Int Int")
(hk-con-arity "Bar"))
(hk-test "rational?" (hk-rational? r) true)
(hk-test "numerator" (hk-numerator r) 1)
(hk-test "denominator" (hk-denominator r) 2)))
(let
((r (hk-make-rational 2 4)))
(do
(hk-test "rat normalise num" (hk-numerator r) 1)
(hk-test "rat normalise den" (hk-denominator r) 2)))
(let
((sum (hk-rational-add (hk-make-rational 1 2) (hk-make-rational 1 3))))
(do
(hk-test "rat-add num" (hk-numerator sum) 5)
(hk-test "rat-add den" (hk-denominator sum) 6)))
(hk-test
"rat-to-float"
(hk-rational-to-float (hk-make-rational 1 2))
0.5)
(hk-test "rational? int" (hk-rational? 42) false)
;; ---------------------------------------------------------------------------
;; 3. Lazy evaluation (promises via SX delay)
;; ---------------------------------------------------------------------------
(let
((p (delay 42)))
(hk-test "force promise" (hk-force p) 42))
(hk-test "force non-promise" (hk-force 99) 99)
;; ---------------------------------------------------------------------------
;; 4. Char utilities — compare via hk-ord to avoid = on char type
;; ---------------------------------------------------------------------------
(hk-test "ord A" (hk-ord (integer->char 65)) 65)
(hk-test "chr 65" (hk-ord (hk-chr 65)) 65)
(hk-test "is-alpha? A" (hk-is-alpha? (integer->char 65)) true)
(hk-test "is-alpha? 0" (hk-is-alpha? (integer->char 48)) false)
(hk-test "is-digit? 5" (hk-is-digit? (integer->char 53)) true)
(hk-test "is-digit? A" (hk-is-digit? (integer->char 65)) false)
(hk-test "is-upper? A" (hk-is-upper? (integer->char 65)) true)
(hk-test "is-upper? a" (hk-is-upper? (integer->char 97)) false)
(hk-test "is-lower? a" (hk-is-lower? (integer->char 97)) true)
(hk-test "is-space? spc" (hk-is-space? (integer->char 32)) true)
(hk-test "is-space? A" (hk-is-space? (integer->char 65)) false)
(hk-test
"to-upper a"
(hk-ord (hk-to-upper (integer->char 97)))
65)
(hk-test
"to-lower A"
(hk-ord (hk-to-lower (integer->char 65)))
97)
(hk-test
"digit-to-int 0"
(hk-digit-to-int (integer->char 48))
0)
(hk-test
"digit-to-int 9"
(hk-digit-to-int (integer->char 57))
9)
(hk-test
"digit-to-int a"
(hk-digit-to-int (integer->char 97))
10)
(hk-test
"digit-to-int F"
(hk-digit-to-int (integer->char 70))
15)
(hk-test "int-to-digit 0" (hk-ord (hk-int-to-digit 0)) 48)
(hk-test "int-to-digit 10" (hk-ord (hk-int-to-digit 10)) 97)
;; ---------------------------------------------------------------------------
;; 5. Data.Set
;; ---------------------------------------------------------------------------
(hk-test "set-empty is set?" (hk-set? (hk-set-empty)) true)
(hk-test "set-null? empty" (hk-set-null? (hk-set-empty)) true)
(let
((s (hk-set-singleton 42)))
(do
(hk-test "singleton member" (hk-set-member? 42 s) true)
(hk-test "singleton size" (hk-set-size s) 1)))
(let
((s (hk-set-from-list (list 1 2 3))))
(do
(hk-test "from-list member" (hk-set-member? 2 s) true)
(hk-test "from-list absent" (hk-set-member? 9 s) false)
(hk-test "from-list size" (hk-set-size s) 3)))
;; ---------------------------------------------------------------------------
;; 6. Data.List
;; ---------------------------------------------------------------------------
(hk-test "head" (hk-head (list 1 2 3)) 1)
(hk-test
"tail length"
(len (hk-tail (list 1 2 3)))
2)
(hk-test "null? empty" (hk-null? (list)) true)
(hk-test "null? non-empty" (hk-null? (list 1)) false)
(hk-test
"length"
(hk-length (list 1 2 3))
3)
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}
(hk-test
"take 2"
(hk-take 2 (list 1 2 3))
(list 1 2))
(hk-test "take 0" (hk-take 0 (list 1 2)) (list))
(hk-test
"take overflow"
(hk-take 5 (list 1 2))
(list 1 2))
(hk-test
"drop 1"
(hk-drop 1 (list 1 2 3))
(list 2 3))
(hk-test
"drop 0"
(hk-drop 0 (list 1 2))
(list 1 2))
(hk-test
"take-while"
(hk-take-while
(fn (x) (< x 3))
(list 1 2 3 4))
(list 1 2))
(hk-test
"drop-while"
(hk-drop-while
(fn (x) (< x 3))
(list 1 2 3 4))
(list 3 4))
(hk-test
"zip"
(hk-zip (list 1 2) (list 3 4))
(list (list 1 3) (list 2 4)))
(hk-test
"zip uneven"
(hk-zip
(list 1 2 3)
(list 4 5))
(list (list 1 4) (list 2 5)))
(hk-test
"zip-with +"
(hk-zip-with
+
(list 1 2 3)
(list 10 20 30))
(list 11 22 33))
(hk-test
"unzip fst"
(first
(hk-unzip
(list (list 1 3) (list 2 4))))
(list 1 2))
(hk-test
"unzip snd"
(nth
(hk-unzip
(list (list 1 3) (list 2 4)))
1)
(list 3 4))
(hk-test
"elem hit"
(hk-elem 2 (list 1 2 3))
true)
(hk-test
"elem miss"
(hk-elem 9 (list 1 2 3))
false)
(hk-test
"not-elem"
(hk-not-elem 9 (list 1 2 3))
true)
(hk-test
"nub"
(hk-nub (list 1 2 1 3 2))
(list 1 2 3))
(hk-test
"sum"
(hk-sum (list 1 2 3 4))
10)
(hk-test
"product"
(hk-product (list 1 2 3 4))
24)
(hk-test
"maximum"
(hk-maximum (list 3 1 4 1 5))
5)
(hk-test
"minimum"
(hk-minimum (list 3 1 4 1 5))
1)
(hk-test
"concat"
(hk-concat
(list (list 1 2) (list 3 4)))
(list 1 2 3 4))
(hk-test
"concat-map"
(hk-concat-map
(fn (x) (list x (* x x)))
(list 1 2 3))
(list 1 1 2 4 3 9))
(hk-test
"sort"
(hk-sort (list 3 1 4 1 5))
(list 1 1 3 4 5))
(hk-test
"replicate"
(hk-replicate 3 0)
(list 0 0 0))
(hk-test "replicate 0" (hk-replicate 0 99) (list))
(hk-test
"intersperse"
(hk-intersperse 0 (list 1 2 3))
(list 1 0 2 0 3))
(hk-test
"intersperse 1"
(hk-intersperse 0 (list 1))
(list 1))
(hk-test "intersperse empty" (hk-intersperse 0 (list)) (list))
(hk-test
"span"
(hk-span
(fn (x) (< x 3))
(list 1 2 3 4))
(list (list 1 2) (list 3 4)))
(hk-test
"break"
(hk-break
(fn (x) (>= x 3))
(list 1 2 3 4))
(list (list 1 2) (list 3 4)))
(hk-test
"foldl"
(hk-foldl
(fn (a b) (- a b))
10
(list 1 2 3))
4)
(hk-test
"foldr"
(hk-foldr cons (list) (list 1 2 3))
(list 1 2 3))
(hk-test
"scanl"
(hk-scanl + 0 (list 1 2 3))
(list 0 1 3 6))
;; ---------------------------------------------------------------------------
;; 7. Maybe / Either
;; ---------------------------------------------------------------------------
(hk-test "nothing is-nothing?" (hk-is-nothing? hk-nothing) true)
(hk-test "nothing is-just?" (hk-is-just? hk-nothing) false)
(hk-test "just is-just?" (hk-is-just? (hk-just 42)) true)
(hk-test "just is-nothing?" (hk-is-nothing? (hk-just 42)) false)
(hk-test "from-just" (hk-from-just (hk-just 99)) 99)
(hk-test
"from-maybe nothing"
(hk-from-maybe 0 hk-nothing)
0)
(hk-test
"from-maybe just"
(hk-from-maybe 0 (hk-just 42))
42)
(hk-test
"maybe nothing"
(hk-maybe 0 (fn (x) (* x 2)) hk-nothing)
0)
(hk-test
"maybe just"
(hk-maybe 0 (fn (x) (* x 2)) (hk-just 5))
10)
(hk-test "left is-left?" (hk-is-left? (hk-left "e")) true)
(hk-test "right is-right?" (hk-is-right? (hk-right 42)) true)
(hk-test "from-right" (hk-from-right (hk-right 7)) 7)
(hk-test
"either left"
(hk-either (fn (x) (str "L" x)) (fn (x) (str "R" x)) (hk-left "err"))
"Lerr")
(hk-test
"either right"
(hk-either
(fn (x) (str "L" x))
(fn (x) (str "R" x))
(hk-right 42))
"R42")
;; ---------------------------------------------------------------------------
;; 8. Tuples
;; ---------------------------------------------------------------------------
(hk-test "pair" (hk-pair 1 2) (list 1 2))
(hk-test "fst" (hk-fst (hk-pair 3 4)) 3)
(hk-test "snd" (hk-snd (hk-pair 3 4)) 4)
(hk-test
"triple"
(hk-triple 1 2 3)
(list 1 2 3))
(hk-test
"fst3"
(hk-fst3 (hk-triple 7 8 9))
7)
(hk-test
"thd3"
(hk-thd3 (hk-triple 7 8 9))
9)
(hk-test "curry" ((hk-curry +) 3 4) 7)
(hk-test
"uncurry"
((hk-uncurry (fn (a b) (* a b))) (list 3 4))
12)
;; ---------------------------------------------------------------------------
;; 9. String helpers
;; ---------------------------------------------------------------------------
(hk-test "words" (hk-words "hello world") (list "hello" "world"))
(hk-test "words leading ws" (hk-words " foo bar") (list "foo" "bar"))
(hk-test "words empty" (hk-words "") (list))
(hk-test "unwords" (hk-unwords (list "a" "b" "c")) "a b c")
(hk-test "unwords single" (hk-unwords (list "x")) "x")
(hk-test "lines" (hk-lines "a\nb\nc") (list "a" "b" "c"))
(hk-test "lines single" (hk-lines "hello") (list "hello"))
(hk-test "unlines" (hk-unlines (list "a" "b")) "a\nb\n")
(hk-test "is-prefix-of yes" (hk-is-prefix-of "he" "hello") true)
(hk-test "is-prefix-of no" (hk-is-prefix-of "wo" "hello") false)
(hk-test "is-prefix-of eq" (hk-is-prefix-of "hi" "hi") true)
(hk-test "is-prefix-of empty" (hk-is-prefix-of "" "hi") true)
(hk-test "is-suffix-of yes" (hk-is-suffix-of "lo" "hello") true)
(hk-test "is-suffix-of no" (hk-is-suffix-of "he" "hello") false)
(hk-test "is-suffix-of empty" (hk-is-suffix-of "" "hi") true)
(hk-test "is-infix-of yes" (hk-is-infix-of "ell" "hello") true)
(hk-test "is-infix-of no" (hk-is-infix-of "xyz" "hello") false)
(hk-test "is-infix-of empty" (hk-is-infix-of "" "hello") true)
;; ---------------------------------------------------------------------------
;; 10. Show
;; ---------------------------------------------------------------------------
(hk-test "show nil" (hk-show nil) "Nothing")
(hk-test "show true" (hk-show true) "True")
(hk-test "show false" (hk-show false) "False")
(hk-test "show int" (hk-show 42) "42")
(hk-test "show string" (hk-show "hi") "\"hi\"")
(hk-test
"show list"
(hk-show (list 1 2 3))
"[1,2,3]")
(hk-test "show empty list" (hk-show (list)) "[]")
;; ---------------------------------------------------------------------------
;; Summary (required by test.sh — last expression is the return value)
;; ---------------------------------------------------------------------------
(list hk-test-pass hk-test-fail)

View File

@@ -1,85 +0,0 @@
;; seq / deepseq tests. seq is strict in its first arg (forces to
;; WHNF) and returns the second arg unchanged. deepseq additionally
;; forces the first arg to normal form.
(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-eval-list
(fn (src) (hk-as-list (hk-eval-expr-source src))))
;; ── seq returns its second arg ──
(hk-test
"seq with primitive first arg"
(hk-eval-expr-source "seq 1 99")
99)
(hk-test
"seq forces first arg via let"
(hk-eval-expr-source "let x = 1 + 2 in seq x x")
3)
(hk-test
"seq second arg is whatever shape"
(hk-eval-expr-source "seq 0 \"hello\"")
"hello")
;; ── seq enables previously-lazy bottom to be forced ──
;; Without seq the let-binding `x = error …` is never forced;
;; with seq it must be forced because seq is strict in its first
;; argument. We don't run that error case here (it would terminate
;; the test), but we do verify the negative — that without seq,
;; the bottom bound is never demanded.
(hk-test
"lazy let — bottom never forced when unused"
(hk-eval-expr-source "let x = error \"never\" in 42")
42)
;; ── deepseq forces nested structure ──
(hk-test
"deepseq with finite list"
(hk-eval-expr-source "deepseq [1, 2, 3] 7")
7)
(hk-test
"deepseq with constructor value"
(hk-eval-expr-source "deepseq (Just 5) 11")
11)
(hk-test
"deepseq with tuple"
(hk-eval-expr-source "deepseq (1, 2) 13")
13)
;; ── seq + arithmetic ──
(hk-test
"seq used inside arithmetic doesn't poison the result"
(hk-eval-expr-source "(seq 1 5) + (seq 2 7)")
12)
;; ── seq in user code ──
(hk-test
"seq via fun-clause"
(hk-prog-val
"f x = seq x (x + 1)\nresult = f 10"
"result")
11)
(hk-test
"seq sequences list construction"
(hk-eval-list "[seq 1 10, seq 2 20]")
(list 10 20))
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

View File

@@ -1,151 +0,0 @@
;; stdlib.sx — tests for standard-library functions added in Phase 5:
;; Eq/Ord, Show, Num, Functor, Monad, Applicative, plus common Prelude.
(define
hk-t
(fn
(lbl src expected)
(hk-test lbl (hk-deep-force (hk-run src)) expected)))
(define
hk-ts
(fn
(lbl src expected)
(hk-test
lbl
(hk-deep-force (hk-run (str "main = show (" src ")")))
expected)))
;; ── Ord ──────────────────────────────────────────────────────
(hk-test
"compare lt"
(hk-deep-force (hk-run "main = compare 1 2"))
(list "LT"))
(hk-test
"compare eq"
(hk-deep-force (hk-run "main = compare 3 3"))
(list "EQ"))
(hk-test
"compare gt"
(hk-deep-force (hk-run "main = compare 9 5"))
(list "GT"))
(hk-test "min" (hk-deep-force (hk-run "main = min 3 5")) 3)
(hk-test "max" (hk-deep-force (hk-run "main = max 3 5")) 5)
;; ── Show ─────────────────────────────────────────────────────
(hk-ts "show int" "42" "42")
(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 Nothing" "Nothing" "Nothing")
(hk-ts "show LT" "LT" "LT")
(hk-ts "show tuple" "(1, True)" "(1, True)")
;; ── Num extras ───────────────────────────────────────────────
(hk-test "signum pos" (hk-deep-force (hk-run "main = signum 5")) 1)
(hk-test
"signum neg"
(hk-deep-force (hk-run "main = signum (negate 3)"))
(- 0 1))
(hk-test "signum zero" (hk-deep-force (hk-run "main = signum 0")) 0)
(hk-test "fromIntegral" (hk-deep-force (hk-run "main = fromIntegral 7")) 7)
;; ── foldr / foldl ────────────────────────────────────────────
(hk-test "foldr sum" (hk-deep-force (hk-run "main = foldr (+) 0 [1,2,3]")) 6)
(hk-test "foldl sum" (hk-deep-force (hk-run "main = foldl (+) 0 [1,2,3]")) 6)
(hk-test "foldl1" (hk-deep-force (hk-run "main = foldl1 (+) [1,2,3,4]")) 10)
(hk-test
"foldr cons"
(hk-deep-force (hk-run "main = show (foldr (:) [] [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]")
(hk-test "null []" (hk-deep-force (hk-run "main = null []")) (list "True"))
(hk-test
"null xs"
(hk-deep-force (hk-run "main = null [1]"))
(list "False"))
(hk-test
"elem yes"
(hk-deep-force (hk-run "main = elem 2 [1,2,3]"))
(list "True"))
(hk-test
"elem no"
(hk-deep-force (hk-run "main = elem 9 [1,2,3]"))
(list "False"))
(hk-test
"zip"
(hk-deep-force (hk-run "main = show (zip [1,2] [3,4])"))
"[(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)
(hk-test "minimum" (hk-deep-force (hk-run "main = minimum [3,1,9,2]")) 1)
(hk-test
"any yes"
(hk-deep-force (hk-run "main = any (\\x -> x > 3) [1,2,5]"))
(list "True"))
(hk-test
"any no"
(hk-deep-force (hk-run "main = any (\\x -> x > 9) [1,2,5]"))
(list "False"))
(hk-test
"all yes"
(hk-deep-force (hk-run "main = all (\\x -> x > 0) [1,2,5]"))
(list "True"))
(hk-test
"all no"
(hk-deep-force (hk-run "main = all (\\x -> x > 3) [1,2,5]"))
(list "False"))
;; ── Higher-order ─────────────────────────────────────────────
(hk-test "flip" (hk-deep-force (hk-run "main = flip (-) 3 10")) 7)
(hk-test "const" (hk-deep-force (hk-run "main = const 42 True")) 42)
;; ── Functor ──────────────────────────────────────────────────
(hk-test
"fmap list"
(hk-deep-force (hk-run "main = show (fmap (+1) [1,2,3])"))
"[2, 3, 4]")
;; ── Monad / Applicative ──────────────────────────────────────
(hk-test "return" (hk-deep-force (hk-run "main = return 7")) (list "IO" 7))
(hk-test "pure" (hk-deep-force (hk-run "main = pure 7")) (list "IO" 7))
(hk-test
"when T"
(hk-deep-force (hk-run "main = when True (return 1)"))
(list "IO" 1))
(hk-test
"when F"
(hk-deep-force (hk-run "main = when False (return 1)"))
(list "IO" (list "()")))
(hk-test
"unless F"
(hk-deep-force (hk-run "main = unless False (return 2)"))
(list "IO" 2))
;; ── lookup / maybe / either ─────────────────────────────────
(hk-test
"lookup hit"
(hk-deep-force (hk-run "main = show (lookup 2 [(1,10),(2,20)])"))
"(Just 20)")
(hk-test
"lookup miss"
(hk-deep-force (hk-run "main = show (lookup 9 [(1,10)])"))
"Nothing")
(hk-test
"maybe def"
(hk-deep-force (hk-run "main = maybe 0 (+1) Nothing"))
0)
(hk-test
"maybe just"
(hk-deep-force (hk-run "main = maybe 0 (+1) (Just 5)"))
6)
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -1,82 +0,0 @@
;; typecheck.sx — tests for hk-typecheck / hk-run-typed.
;; Verifies that untypeable programs are rejected and well-typed programs pass.
(define hk-str-has? (fn (s sub) (>= (index-of s sub) 0)))
;; Helper: expect a type error containing `sub`
(define
hk-tc-err
(fn
(label src sub)
(hk-test
label
(guard
(e (#t (hk-str-has? e sub)))
(begin (hk-run-typed src) false))
true)))
;; ─── Valid programs pass through ─────────────────────────────────────────────
(hk-test "typed ok: simple arithmetic" (hk-run-typed "main = 1 + 2") 3)
(hk-test "typed ok: boolean" (hk-run-typed "main = True") (list "True"))
(hk-test "typed ok: let binding" (hk-run-typed "main = let x = 1 in x + 2") 3)
(hk-test
"typed ok: two independent fns"
(hk-run-typed "f x = x + 1\nmain = f 5")
6)
;; ─── Untypeable programs are rejected ────────────────────────────────────────
;; Adding Int and Bool is a unification failure.
(hk-tc-err "reject: Int + Bool mentions Int" "main = 1 + True" "Int")
(hk-tc-err "reject: Int + Bool mentions Bool" "main = 1 + True" "Bool")
;; Condition of if must be Bool.
(hk-tc-err "reject: if non-bool condition" "main = if 1 then 2 else 3" "Bool")
;; Unbound variable.
(hk-tc-err "reject: unbound variable" "main = unknownVar + 1" "unknownVar")
;; Function body type error: applying non-function.
(hk-tc-err "reject: apply non-function" "f x = 1 x" "Int")
(define prog-sig1 (hk-core "f :: Int -> Int\nf x = x + 1"))
(define prog-sig2 (hk-core "f :: Bool -> Bool\nf x = x + 1"))
(define prog-sig3 (hk-core "id :: a -> a\nid x = x"))
(hk-test
"sig ok: Int->Int accepted"
(first (nth (hk-infer-prog prog-sig1 (hk-type-env0)) 0))
"ok")
(hk-test
"sig fail: Bool->Bool rejected"
(first (nth (hk-infer-prog prog-sig2 (hk-type-env0)) 0))
"err")
(hk-test
"sig fail: error mentions mismatch"
(hk-str-has?
(nth (nth (hk-infer-prog prog-sig2 (hk-type-env0)) 0) 1)
"mismatch")
true)
(hk-test
"sig ok: polymorphic a->a accepted"
(first (nth (hk-infer-prog prog-sig3 (hk-type-env0)) 0))
"ok")
(hk-tc-err
"run-typed sig fail: Bool declared, Int inferred"
"main :: Bool\nmain = 1 + 2"
"mismatch")
(hk-test
"run-typed sig ok: Int declared matches"
(hk-run-typed "main :: Int\nmain = 1 + 2")
3)
{:fails hk-test-fails :pass hk-test-pass :fail hk-test-fail}

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@@ -19,7 +19,6 @@
(define
reserved
(list
(quote beingTold)
(quote me)
(quote it)
(quote event)
@@ -66,92 +65,30 @@
(list (quote me))
(list
(quote let)
(list
(list (quote beingTold) (quote me))
(list (quote it) nil)
(list (quote event) nil))
(list (list (quote it) nil) (list (quote event) nil))
guarded))))))))))
;; ── Activate a single element ───────────────────────────────────
;; Reads the _="..." attribute, compiles, and executes with me=element.
;; Marks the element to avoid double-activation.
(define
hs-register-scripts!
(fn
()
(for-each
(fn
(script)
(when
(not (dom-get-data script "hs-script-loaded"))
(let
((src (host-get script "innerHTML")))
(guard
(_e (true nil))
(let
((handler (eval-expr-cek (hs-to-sx-from-source src))))
(handler (dom-body)))))))
(hs-query-all "script[type=text/hyperscript]"))))
;; ── Boot: scan entire document ──────────────────────────────────
;; Called once at page load. Finds all elements with _ attribute,
;; compiles their hyperscript, and activates them.
(define
hs-scripting-disabled?
(fn
(el)
(if
(= el nil)
false
(if
(dom-get-attr el "disable-scripting")
true
(hs-scripting-disabled? (dom-parent el))))))
;; ── Boot subtree: for dynamic content ───────────────────────────
;; Called after HTMX swaps or dynamic DOM insertion.
;; Only activates elements within the given root.
(define
hs-activate!
(fn
(el)
(do
(hs-register-scripts!)
(let
((src (dom-get-attr el "_")) (prev (dom-get-data el "hs-script")))
(when
(and src (not (= src prev)) (not (hs-scripting-disabled? el)))
(when
(dom-dispatch el "hyperscript:before:init" nil)
(and src (not (= src prev)))
(hs-log-event! "hyperscript:init")
(dom-set-data el "hs-script" src)
(dom-set-data el "hs-active" true)
(dom-set-attr el "data-hyperscript-powered" "true")
(host-set! (host-global "window") "__hs_current_me" el)
(guard
(_e
(true
(do
(dom-dispatch el "hyperscript:parse-error" {:errors (list _e)})
nil)))
(let
((handler (hs-handler src)))
(let
((el-type (dom-get-attr el "type"))
(comp-name (dom-get-attr el "component")))
(let
((safe-handler (fn (e) (host-call-fn handler (list e)))))
(if
(= el-type "text/hyperscript-template")
(for-each
safe-handler
(hs-query-all (or comp-name "")))
(safe-handler el))))))
(host-set! (host-global "window") "__hs_current_me" nil)
(dom-dispatch el "hyperscript:after:init" nil)))))))
(let ((handler (hs-handler src))) (handler el))))))
;; ── Boot: scan entire document ──────────────────────────────────
;; Called once at page load. Finds all elements with _ attribute,
;; compiles their hyperscript, and activates them.
(define
hs-deactivate!
@@ -164,6 +101,10 @@
(dom-set-data el "hs-active" false)
(dom-set-data el "hs-script" nil))))
;; ── Boot subtree: for dynamic content ───────────────────────────
;; Called after HTMX swaps or dynamic DOM insertion.
;; Only activates elements within the given root.
(define
hs-boot!
(fn

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@@ -28,27 +28,6 @@
(define hs-ws? (fn (c) (or (= c " ") (= c "\t") (= c "\n") (= c "\r"))))
(define
hs-hex-digit?
(fn
(c)
(or
(and (>= c "0") (<= c "9"))
(and (>= c "a") (<= c "f"))
(and (>= c "A") (<= c "F")))))
(define
hs-hex-val
(fn
(c)
(let
((code (char-code c)))
(cond
((and (>= code 48) (<= code 57)) (- code 48))
((and (>= code 65) (<= code 70)) (- code 55))
((and (>= code 97) (<= code 102)) (- code 87))
(true 0)))))
;; ── Keyword set ───────────────────────────────────────────────────
(define
@@ -131,7 +110,6 @@
"append"
"settle"
"transition"
"view"
"over"
"closest"
"next"
@@ -209,8 +187,7 @@
"using"
"giving"
"ask"
"answer"
"bind"))
"answer"))
(define hs-keyword? (fn (word) (some (fn (k) (= k word)) hs-keywords)))
@@ -258,15 +235,10 @@
read-number
(fn
(start)
(define
read-int
(fn
()
(when
(and (< pos src-len) (hs-digit? (hs-cur)))
(hs-advance! 1)
(read-int))))
(read-int)
(read-number start))
(when
(and
(< pos src-len)
@@ -274,7 +246,15 @@
(< (+ pos 1) src-len)
(hs-digit? (hs-peek 1)))
(hs-advance! 1)
(read-int))
(define
read-frac
(fn
()
(when
(and (< pos src-len) (hs-digit? (hs-cur)))
(hs-advance! 1)
(read-frac))))
(read-frac))
(do
(when
(and
@@ -292,7 +272,15 @@
(< pos src-len)
(or (= (hs-cur) "+") (= (hs-cur) "-")))
(hs-advance! 1))
(read-int))
(define
read-exp-digits
(fn
()
(when
(and (< pos src-len) (hs-digit? (hs-cur)))
(hs-advance! 1)
(read-exp-digits))))
(read-exp-digits))
(let
((num-end pos))
(when
@@ -320,7 +308,7 @@
()
(cond
(>= pos src-len)
(error "Unterminated string")
nil
(= (hs-cur) "\\")
(do
(hs-advance! 1)
@@ -330,47 +318,15 @@
((ch (hs-cur)))
(cond
(= ch "n")
(do (append! chars "\n") (hs-advance! 1))
(append! chars "\n")
(= ch "t")
(do (append! chars "\t") (hs-advance! 1))
(= ch "r")
(do (append! chars "\r") (hs-advance! 1))
(= ch "b")
(do
(append! chars (char-from-code 8))
(hs-advance! 1))
(= ch "f")
(do
(append! chars (char-from-code 12))
(hs-advance! 1))
(= ch "v")
(do
(append! chars (char-from-code 11))
(hs-advance! 1))
(append! chars "\t")
(= ch "\\")
(do (append! chars "\\") (hs-advance! 1))
(= ch quote-char)
(do (append! chars quote-char) (hs-advance! 1))
(= ch "x")
(do
(hs-advance! 1)
(if
(and
(< (+ pos 1) src-len)
(hs-hex-digit? (hs-cur))
(hs-hex-digit? (hs-peek 1)))
(let
((d1 (hs-hex-val (hs-cur)))
(d2 (hs-hex-val (hs-peek 1))))
(append!
chars
(char-from-code (+ (* d1 16) d2)))
(hs-advance! 2))
(error "Invalid hexadecimal escape: \\x")))
:else (do
(append! chars "\\")
(append! chars ch)
(hs-advance! 1)))))
(= ch quote-char)
(append! chars quote-char)
:else (do (append! chars "\\") (append! chars ch)))
(hs-advance! 1)))
(loop))
(= (hs-cur) quote-char)
(hs-advance! 1)
@@ -457,68 +413,27 @@
read-class-name
(fn
(start)
(define
build-name
(fn
(acc depth)
(cond
((and (< pos src-len) (= (hs-cur) "\\") (< (+ pos 1) src-len))
(do
(when
(and
(< pos src-len)
(or
(hs-ident-char? (hs-cur))
(= (hs-cur) ":")
(= (hs-cur) "[")
(= (hs-cur) "]")))
(hs-advance! 1)
(let
((c (hs-cur)))
(hs-advance! 1)
(build-name (str acc c) depth))))
((and (< pos src-len) (= (hs-cur) "["))
(do
(let
((c (hs-cur)))
(hs-advance! 1)
(build-name (str acc c) (+ depth 1)))))
((and (< pos src-len) (= (hs-cur) "]"))
(do
(let
((c (hs-cur)))
(hs-advance! 1)
(build-name
(str acc c)
(if (> depth 0) (- depth 1) 0)))))
((and (< pos src-len) (> depth 0) (or (= (hs-cur) "(") (= (hs-cur) ")")))
(do
(let
((c (hs-cur)))
(hs-advance! 1)
(build-name (str acc c) depth))))
((and (< pos src-len) (or (hs-ident-char? (hs-cur)) (= (hs-cur) ":") (= (hs-cur) "&")))
(do
(let
((c (hs-cur)))
(hs-advance! 1)
(build-name (str acc c) depth))))
(true acc))))
(build-name "" 0)))
(read-class-name start))
(slice src start pos)))
(define
hs-emit!
(fn
(type value start)
(let
((tok (hs-make-token type value start))
(end-pos
(max pos (+ start (if (nil? value) 0 (len (str value)))))))
(do
(dict-set! tok "end" end-pos)
(dict-set! tok "line" (len (split (slice src 0 start) "\n")))
(append! tokens tok)))))
(append! tokens (hs-make-token type value start))))
(define
scan!
(fn
()
(let
((ws-start pos))
(skip-ws!)
(when
(and (> (len tokens) 0) (> pos ws-start))
(hs-emit! "whitespace" (slice src ws-start pos) ws-start)))
(when
(< pos src-len)
(let
@@ -538,26 +453,10 @@
(= (hs-peek 1) "#")
(= (hs-peek 1) "[")
(= (hs-peek 1) "*")
(= (hs-peek 1) ":")
(= (hs-peek 1) "$")))
(= (hs-peek 1) ":")))
(do (hs-emit! "selector" (read-selector) start) (scan!))
(and (= ch ".") (< (+ pos 1) src-len) (= (hs-peek 1) "."))
(do (hs-emit! "op" ".." start) (hs-advance! 2) (scan!))
(and
(= ch ".")
(< (+ pos 1) src-len)
(or
(hs-letter? (hs-peek 1))
(= (hs-peek 1) "-")
(= (hs-peek 1) "_"))
(> (len tokens) 0)
(let
((lt (dict-get (nth tokens (- (len tokens) 1)) :type)))
(or
(= lt "paren-close")
(= lt "brace-close")
(= lt "bracket-close"))))
(do (hs-emit! "dot" "." start) (hs-advance! 1) (scan!))
(and
(= ch ".")
(< (+ pos 1) src-len)
@@ -569,18 +468,6 @@
(hs-advance! 1)
(hs-emit! "class" (read-class-name pos) start)
(scan!))
(and
(= ch "#")
(< (+ pos 1) src-len)
(hs-ident-start? (hs-peek 1))
(> (len tokens) 0)
(let
((lt (dict-get (nth tokens (- (len tokens) 1)) :type)))
(or
(= lt "paren-close")
(= lt "brace-close")
(= lt "bracket-close"))))
(do (hs-emit! "op" "#" start) (hs-advance! 1) (scan!))
(and
(= ch "#")
(< (+ pos 1) src-len)
@@ -649,12 +536,10 @@
(do
(let
((word (read-ident start)))
(let
((full-word (if (and (< pos src-len) (= (hs-cur) "'") (< (+ pos 1) src-len) (hs-letter? (hs-peek 1)) (not (and (= (hs-peek 1) "s") (or (>= (+ pos 2) src-len) (not (hs-ident-char? (hs-peek 2))))))) (do (hs-advance! 1) (str word "'" (read-ident pos))) word)))
(hs-emit!
(if (hs-keyword? full-word) "keyword" "ident")
full-word
start)))
(if (hs-keyword? word) "keyword" "ident")
word
start))
(scan!))
(and
(or (= ch "=") (= ch "!") (= ch "<") (= ch ">"))
@@ -735,82 +620,7 @@
(do (hs-emit! "colon" ":" start) (hs-advance! 1) (scan!))
(= ch "|")
(do (hs-emit! "op" "|" start) (hs-advance! 1) (scan!))
(= ch "&")
(do (hs-emit! "op" "&" start) (hs-advance! 1) (scan!))
(= ch "#")
(do (hs-emit! "op" "#" start) (hs-advance! 1) (scan!))
(= ch "?")
(do (hs-emit! "op" "?" start) (hs-advance! 1) (scan!))
(= ch ";")
(do (hs-emit! "op" ";" start) (hs-advance! 1) (scan!))
:else (do (hs-advance! 1) (scan!)))))))
(scan!)
(hs-emit! "eof" nil pos)
tokens)))
;; ── Template-mode tokenizer (E37 API) ────────────────────────────────
;; Used by hs-tokens-of when :template flag is set.
;; Emits outer " chars as single STRING tokens; ${ ... } as $ { <inner-tokens> };
;; inner content is tokenized with the regular hs-tokenize.
(define
hs-tokenize-template
(fn
(src)
(let
((tokens (list)) (pos 0) (src-len (len src)))
(define t-cur (fn () (if (< pos src-len) (nth src pos) nil)))
(define t-peek (fn (n) (if (< (+ pos n) src-len) (nth src (+ pos n)) nil)))
(define t-advance! (fn (n) (set! pos (+ pos n))))
(define t-emit! (fn (type value) (append! tokens (hs-make-token type value pos))))
(define
scan-to-close!
(fn
(depth)
(when
(and (< pos src-len) (> depth 0))
(cond
(= (t-cur) "{")
(do (t-advance! 1) (scan-to-close! (+ depth 1)))
(= (t-cur) "}")
(when (> (- depth 1) 0) (t-advance! 1) (scan-to-close! (- depth 1)))
:else (do (t-advance! 1) (scan-to-close! depth))))))
(define
scan-template!
(fn
()
(when
(< pos src-len)
(let
((ch (t-cur)))
(cond
(= ch "\"")
(do (t-emit! "string" "\"") (t-advance! 1) (scan-template!))
(and (= ch "$") (= (t-peek 1) "{"))
(do
(t-emit! "op" "$")
(t-advance! 1)
(t-emit! "brace-open" "{")
(t-advance! 1)
(let
((inner-start pos))
(scan-to-close! 1)
(let
((inner-src (slice src inner-start pos))
(inner-toks (hs-tokenize inner-src)))
(for-each
(fn (tok)
(when (not (= (get tok "type") "eof"))
(append! tokens tok)))
inner-toks))
(t-emit! "brace-close" "}")
(when (< pos src-len) (t-advance! 1)))
(scan-template!))
(= ch "$")
(do (t-emit! "op" "$") (t-advance! 1) (scan-template!))
(hs-ws? ch)
(do (t-advance! 1) (scan-template!))
:else (do (t-advance! 1) (scan-template!)))))))
(scan-template!)
(t-emit! "eof" nil)
tokens)))

View File

@@ -1,176 +0,0 @@
;; lib/prolog/compiler.sx — clause compiler: parse-AST clauses → SX closures
;;
;; Each compiled clause is a lambda (fn (goal trail db cut-box k) bool)
;; that creates fresh vars, builds the instantiated head/body, and calls
;; pl-unify! + pl-solve! directly — no AST walk at solve time.
;;
;; Usage:
;; (pl-db-load! db (pl-parse src))
;; (pl-compile-db! db)
;; ; pl-solve-user! in runtime.sx automatically prefers compiled clauses
;; (pl-solve-once! db goal trail)
;; Collect unique variable names from a parse-AST clause into a dict.
(define
pl-cmp-vars-into!
(fn
(ast seen)
(cond
((not (list? ast)) nil)
((empty? ast) nil)
((= (first ast) "var")
(let
((name (nth ast 1)))
(when
(and (not (= name "_")) (not (dict-has? seen name)))
(dict-set! seen name true))))
((= (first ast) "compound")
(for-each (fn (a) (pl-cmp-vars-into! a seen)) (nth ast 2)))
((= (first ast) "clause")
(begin
(pl-cmp-vars-into! (nth ast 1) seen)
(pl-cmp-vars-into! (nth ast 2) seen))))))
;; Return list of unique var names in a clause (head + body, excluding _).
(define
pl-cmp-collect-vars
(fn
(clause)
(let ((seen {})) (pl-cmp-vars-into! clause seen) (keys seen))))
;; Create a fresh runtime var for each name in the list; return name->var dict.
(define
pl-cmp-make-var-map
(fn
(var-names)
(let
((m {}))
(for-each
(fn (name) (dict-set! m name (pl-mk-rt-var name)))
var-names)
m)))
;; Instantiate a parse-AST term using a pre-built var-map.
;; ("var" "_") always gets a fresh anonymous var.
(define
pl-cmp-build-term
(fn
(ast var-map)
(cond
((pl-var? ast) ast)
((not (list? ast)) ast)
((empty? ast) ast)
((= (first ast) "var")
(let
((name (nth ast 1)))
(if (= name "_") (pl-mk-rt-var "_") (dict-get var-map name))))
((or (= (first ast) "atom") (= (first ast) "num") (= (first ast) "str"))
ast)
((= (first ast) "compound")
(list
"compound"
(nth ast 1)
(map (fn (a) (pl-cmp-build-term a var-map)) (nth ast 2))))
((= (first ast) "clause")
(list
"clause"
(pl-cmp-build-term (nth ast 1) var-map)
(pl-cmp-build-term (nth ast 2) var-map)))
(true ast))))
;; Compile one parse-AST clause to a lambda.
;; Pre-computes var names at compile time; creates fresh vars per call.
(define
pl-compile-clause
(fn
(clause)
(let
((var-names (pl-cmp-collect-vars clause))
(head-ast (nth clause 1))
(body-ast (nth clause 2)))
(fn
(goal trail db cut-box k)
(let
((var-map (pl-cmp-make-var-map var-names)))
(let
((fresh-head (pl-cmp-build-term head-ast var-map))
(fresh-body (pl-cmp-build-term body-ast var-map)))
(let
((mark (pl-trail-mark trail)))
(if
(pl-unify! goal fresh-head trail)
(let
((r (pl-solve! db fresh-body trail cut-box k)))
(if r true (begin (pl-trail-undo-to! trail mark) false)))
(begin (pl-trail-undo-to! trail mark) false)))))))))
;; Try a list of compiled clause lambdas — same cut semantics as pl-try-clauses!.
(define
pl-try-compiled-clauses!
(fn
(db
goal
trail
compiled-clauses
outer-cut-box
outer-was-cut
inner-cut-box
k)
(cond
((empty? compiled-clauses) false)
(true
(let
((r ((first compiled-clauses) goal trail db inner-cut-box k)))
(cond
(r true)
((dict-get inner-cut-box :cut) false)
((and (not outer-was-cut) (dict-get outer-cut-box :cut)) false)
(true
(pl-try-compiled-clauses!
db
goal
trail
(rest compiled-clauses)
outer-cut-box
outer-was-cut
inner-cut-box
k))))))))
;; Compile all clauses in DB and store in :compiled table.
;; After this call, pl-solve-user! will dispatch via compiled lambdas.
;; Note: clauses assert!-ed after this call are not compiled.
(define
pl-compile-db!
(fn
(db)
(let
((src-table (dict-get db :clauses)) (compiled-table {}))
(for-each
(fn
(key)
(dict-set!
compiled-table
key
(map pl-compile-clause (dict-get src-table key))))
(keys src-table))
(dict-set! db :compiled compiled-table)
db)))
;; Cross-validate: load src into both a plain and a compiled DB,
;; run goal-str through each, return true iff solution counts match.
;; Use this to keep the interpreter as the reference implementation.
(define
pl-compiled-matches-interp?
(fn
(src goal-str)
(let
((db-interp (pl-mk-db)) (db-comp (pl-mk-db)))
(pl-db-load! db-interp (pl-parse src))
(pl-db-load! db-comp (pl-parse src))
(pl-compile-db! db-comp)
(let
((gi (pl-instantiate (pl-parse-goal goal-str) {}))
(gc (pl-instantiate (pl-parse-goal goal-str) {})))
(=
(pl-solve-count! db-interp gi (pl-mk-trail))
(pl-solve-count! db-comp gc (pl-mk-trail)))))))

View File

@@ -1,129 +0,0 @@
#!/usr/bin/env bash
# Run every Prolog test suite via sx_server and refresh scoreboard.{json,md}.
# Exit 0 if all green, 1 if any failures.
set -euo pipefail
HERE="$(cd "$(dirname "$0")" && pwd)"
ROOT="$(cd "$HERE/../.." && pwd)"
SX="${SX_SERVER:-/root/rose-ash/hosts/ocaml/_build/default/bin/sx_server.exe}"
if [[ ! -x "$SX" ]]; then
echo "sx_server not found at $SX (set SX_SERVER env to override)" >&2
exit 2
fi
cd "$ROOT"
# name : test-file : runner-fn
SUITES=(
"parse:lib/prolog/tests/parse.sx:pl-parse-tests-run!"
"unify:lib/prolog/tests/unify.sx:pl-unify-tests-run!"
"clausedb:lib/prolog/tests/clausedb.sx:pl-clausedb-tests-run!"
"solve:lib/prolog/tests/solve.sx:pl-solve-tests-run!"
"operators:lib/prolog/tests/operators.sx:pl-operators-tests-run!"
"dynamic:lib/prolog/tests/dynamic.sx:pl-dynamic-tests-run!"
"findall:lib/prolog/tests/findall.sx:pl-findall-tests-run!"
"term_inspect:lib/prolog/tests/term_inspect.sx:pl-term-inspect-tests-run!"
"append:lib/prolog/tests/programs/append.sx:pl-append-tests-run!"
"reverse:lib/prolog/tests/programs/reverse.sx:pl-reverse-tests-run!"
"member:lib/prolog/tests/programs/member.sx:pl-member-tests-run!"
"nqueens:lib/prolog/tests/programs/nqueens.sx:pl-nqueens-tests-run!"
"family:lib/prolog/tests/programs/family.sx:pl-family-tests-run!"
"atoms:lib/prolog/tests/atoms.sx:pl-atom-tests-run!"
"query_api:lib/prolog/tests/query_api.sx:pl-query-api-tests-run!"
"iso_predicates:lib/prolog/tests/iso_predicates.sx:pl-iso-predicates-tests-run!"
"meta_predicates:lib/prolog/tests/meta_predicates.sx:pl-meta-predicates-tests-run!"
"list_predicates:lib/prolog/tests/list_predicates.sx:pl-list-predicates-tests-run!"
"meta_call:lib/prolog/tests/meta_call.sx:pl-meta-call-tests-run!"
"set_predicates:lib/prolog/tests/set_predicates.sx:pl-set-predicates-tests-run!"
"char_predicates:lib/prolog/tests/char_predicates.sx:pl-char-predicates-tests-run!"
"io_predicates:lib/prolog/tests/io_predicates.sx:pl-io-predicates-tests-run!"
"assert_rules:lib/prolog/tests/assert_rules.sx:pl-assert-rules-tests-run!"
"string_agg:lib/prolog/tests/string_agg.sx:pl-string-agg-tests-run!"
"advanced:lib/prolog/tests/advanced.sx:pl-advanced-tests-run!"
"compiler:lib/prolog/tests/compiler.sx:pl-compiler-tests-run!"
"cross_validate:lib/prolog/tests/cross_validate.sx:pl-cross-validate-tests-run!"
"integration:lib/prolog/tests/integration.sx:pl-integration-tests-run!"
"hs_bridge:lib/prolog/tests/hs_bridge.sx:pl-hs-bridge-tests-run!"
)
SCRIPT='(epoch 1)
(load "lib/prolog/tokenizer.sx")
(load "lib/prolog/parser.sx")
(load "lib/prolog/runtime.sx")
(load "lib/prolog/query.sx")
(load "lib/prolog/compiler.sx")
(load "lib/prolog/hs-bridge.sx")'
for entry in "${SUITES[@]}"; do
IFS=: read -r _ file _ <<< "$entry"
SCRIPT+=$'\n(load "'"$file"$'")'
done
for entry in "${SUITES[@]}"; do
IFS=: read -r _ _ fn <<< "$entry"
SCRIPT+=$'\n(eval "('"$fn"$')")'
done
OUTPUT="$(printf '%s\n' "$SCRIPT" | "$SX" 2>&1)"
mapfile -t LINES < <(printf '%s\n' "$OUTPUT" | grep -E '^\{:failed')
if [[ ${#LINES[@]} -ne ${#SUITES[@]} ]]; then
echo "Expected ${#SUITES[@]} suite results, got ${#LINES[@]}" >&2
echo "---- raw output ----" >&2
printf '%s\n' "$OUTPUT" >&2
exit 3
fi
TOTAL_PASS=0
TOTAL_FAIL=0
TOTAL=0
JSON_SUITES=""
MD_ROWS=""
for i in "${!SUITES[@]}"; do
IFS=: read -r name _ _ <<< "${SUITES[$i]}"
line="${LINES[$i]}"
passed=$(grep -oE ':passed [0-9]+' <<< "$line" | grep -oE '[0-9]+')
total=$(grep -oE ':total [0-9]+' <<< "$line" | grep -oE '[0-9]+')
failed=$(grep -oE ':failed [0-9]+' <<< "$line" | grep -oE '[0-9]+')
TOTAL_PASS=$((TOTAL_PASS + passed))
TOTAL_FAIL=$((TOTAL_FAIL + failed))
TOTAL=$((TOTAL + total))
status="ok"
[[ "$failed" -gt 0 ]] && status="FAIL"
[[ -n "$JSON_SUITES" ]] && JSON_SUITES+=","
JSON_SUITES+="\"$name\":{\"passed\":$passed,\"total\":$total,\"failed\":$failed}"
MD_ROWS+="| $name | $passed | $total | $status |"$'\n'
done
WHEN="$(date -Iseconds 2>/dev/null || date)"
cat > "$HERE/scoreboard.json" <<JSON
{
"total_passed": $TOTAL_PASS,
"total_failed": $TOTAL_FAIL,
"total": $TOTAL,
"suites": {$JSON_SUITES},
"generated": "$WHEN"
}
JSON
cat > "$HERE/scoreboard.md" <<MD
# Prolog scoreboard
**$TOTAL_PASS / $TOTAL passing** ($TOTAL_FAIL failure(s)).
Generated $WHEN.
| Suite | Passed | Total | Status |
|-------|--------|-------|--------|
$MD_ROWS
Run \`bash lib/prolog/conformance.sh\` to refresh. Override the binary
with \`SX_SERVER=path/to/sx_server.exe bash …\`.
MD
if [[ "$TOTAL_FAIL" -gt 0 ]]; then
echo "$TOTAL_FAIL failure(s) across $TOTAL tests" >&2
exit 1
fi
echo "All $TOTAL tests pass."

View File

@@ -1,84 +0,0 @@
;; lib/prolog/hs-bridge.sx — Prolog ↔ Hyperscript bridge
;;
;; Two complementary integration styles:
;;
;; 1. Hook style — for `prolog(db, "goal(args)")` call syntax in Hyperscript:
;; (pl-install-hs-hook!) ;; call once at startup
;; Requires lib/hyperscript/runtime.sx (provides hs-set-prolog-hook!)
;;
;; 2. Factory style — for named conditions like `when allowed(user, action)`:
;; (define allowed (pl-hs-predicate/2 pl-db "allowed"))
;; No parser/compiler changes needed: Hyperscript compiles
;; `allowed(user, action)` to `(allowed user action)` — a plain SX call.
;;
;; Requires tokenizer.sx, parser.sx, runtime.sx, query.sx loaded first.
;; --- Hook style ---
(define
pl-install-hs-hook!
(fn
()
(hs-set-prolog-hook!
(fn (db goal) (not (= nil (pl-query-one db goal)))))))
;; --- Factory style ---
;; Test whether a ground Prolog goal succeeds against db.
;; Returns true/false (not a solution dict).
(define
pl-hs-query
(fn (db goal-str) (not (nil? (pl-query-one db goal-str)))))
;; Build a Prolog goal string from a predicate name and arg list.
;; SX values: strings/keywords pass through; numbers are stringified via str.
(define
pl-hs-build-goal
(fn
(pred-name args)
(str pred-name "(" (join ", " (map (fn (a) (str a)) args)) ")")))
;; Return a 1-arg SX function that succeeds iff pred(a) holds in db.
(define
pl-hs-predicate/1
(fn
(db pred-name)
(fn (a) (pl-hs-query db (pl-hs-build-goal pred-name (list a))))))
;; Return a 2-arg SX function that succeeds iff pred(a, b) holds in db.
(define
pl-hs-predicate/2
(fn
(db pred-name)
(fn (a b) (pl-hs-query db (pl-hs-build-goal pred-name (list a b))))))
;; Return a 3-arg SX function that succeeds iff pred(a, b, c) holds in db.
(define
pl-hs-predicate/3
(fn
(db pred-name)
(fn (a b c) (pl-hs-query db (pl-hs-build-goal pred-name (list a b c))))))
;; Install every predicate in install-list as a named SX function backed by db.
;; install-list: list of (name arity) pairs.
;; Returns a dict {name → fn} for the caller to destructure.
(define
pl-hs-install
(fn
(db install-list)
(reduce
(fn
(acc entry)
(let
((pred-name (first entry)) (arity (nth entry 1)))
(dict-set!
acc
pred-name
(cond
((= arity 1) (pl-hs-predicate/1 db pred-name))
((= arity 2) (pl-hs-predicate/2 db pred-name))
((= arity 3) (pl-hs-predicate/3 db pred-name))
(true (fn (a b) false))))
acc))
{}
install-list)))

View File

@@ -1,20 +1,28 @@
;; lib/prolog/parser.sx — tokens → Prolog AST
;;
;; Phase 4 grammar (with operator table):
;; Phase 1 grammar (NO operator table yet):
;; Program := Clause* EOF
;; Clause := Term[999] "." | Term[999] ":-" Term[1200] "."
;; Term[Pmax] uses precedence climbing on the operator table:
;; primary = Atom | Var | Number | String | Compound | List | "(" Term[1200] ")"
;; while next token is infix op `op` with prec(op) ≤ Pmax:
;; consume op; parse rhs at right-prec(op); fold into compound(op-name,[lhs,rhs])
;; Clause := Term "." | Term ":-" Term "."
;; Term := Atom | Var | Number | String | Compound | List
;; Compound := atom "(" ArgList ")"
;; ArgList := Term ("," Term)*
;; List := "[" "]" | "[" Term ("," Term)* ("|" Term)? "]"
;;
;; Op type → right-prec for op at precedence P:
;; xfx → P-1 strict-both
;; xfy → P right-associative
;; yfx → P-1 left-associative
;; Term AST shapes (all tagged lists for uniform dispatch):
;; ("atom" name) — atom
;; ("var" name) — variable template (parser-time only)
;; ("num" value) — integer or float
;; ("str" value) — string literal
;; ("compound" functor args) — compound term, args is list of term-ASTs
;; ("cut") — the cut atom !
;;
;; AST shapes are unchanged — operators just become compound terms.
;; A clause is (list "clause" head body). A fact is head with body = ("atom" "true").
;;
;; The empty list is (atom "[]"). Cons is compound "." with two args:
;; [1, 2, 3] → .(1, .(2, .(3, [])))
;; [H|T] → .(H, T)
;; ── Parser state helpers ────────────────────────────────────────────
(define
pp-peek
(fn
@@ -58,6 +66,7 @@
(if (= (get t :value) nil) "" (get t :value))
"'"))))))
;; ── AST constructors ────────────────────────────────────────────────
(define pl-mk-atom (fn (name) (list "atom" name)))
(define pl-mk-var (fn (name) (list "var" name)))
(define pl-mk-num (fn (n) (list "num" n)))
@@ -65,14 +74,18 @@
(define pl-mk-compound (fn (f args) (list "compound" f args)))
(define pl-mk-cut (fn () (list "cut")))
;; Term tag extractors
(define pl-term-tag (fn (t) (if (list? t) (first t) nil)))
(define pl-term-val (fn (t) (nth t 1)))
(define pl-compound-functor (fn (t) (nth t 1)))
(define pl-compound-args (fn (t) (nth t 2)))
;; Empty-list atom and cons helpers
(define pl-nil-term (fn () (pl-mk-atom "[]")))
(define pl-mk-cons (fn (h t) (pl-mk-compound "." (list h t))))
;; Build cons list from a list of terms + optional tail
(define
pl-mk-list-term
(fn
@@ -82,61 +95,9 @@
tail
(pl-mk-cons (first items) (pl-mk-list-term (rest items) tail)))))
;; ── Operator table (Phase 4) ──────────────────────────────────────
;; Each entry: (name precedence type). Type ∈ "xfx" "xfy" "yfx".
(define
pl-op-table
(list
(list "," 1000 "xfy")
(list ";" 1100 "xfy")
(list "->" 1050 "xfy")
(list "=" 700 "xfx")
(list "\\=" 700 "xfx")
(list "is" 700 "xfx")
(list "<" 700 "xfx")
(list ">" 700 "xfx")
(list "=<" 700 "xfx")
(list ">=" 700 "xfx")
(list "+" 500 "yfx")
(list "-" 500 "yfx")
(list "*" 400 "yfx")
(list "/" 400 "yfx")
(list ":-" 1200 "xfx")
(list "mod" 400 "yfx")))
(define
pl-op-find
(fn
(name table)
(cond
((empty? table) nil)
((= (first (first table)) name) (rest (first table)))
(true (pl-op-find name (rest table))))))
(define pl-op-lookup (fn (name) (pl-op-find name pl-op-table)))
;; Token → (name prec type) for known infix ops, else nil.
(define
pl-token-op
(fn
(t)
(let
((ty (get t :type)) (vv (get t :value)))
(cond
((and (= ty "punct") (= vv ","))
(let
((info (pl-op-lookup ",")))
(if (nil? info) nil (cons "," info))))
((or (= ty "atom") (= ty "op"))
(let
((info (pl-op-lookup vv)))
(if (nil? info) nil (cons vv info))))
(true nil)))))
;; ── Term parser ─────────────────────────────────────────────────────
;; Primary term: atom, var, num, str, compound (atom + paren), list, cut, parens.
(define
pp-parse-primary
pp-parse-term
(fn
(st)
(let
@@ -150,12 +111,6 @@
((and (= ty "op") (= vv "!"))
(do (pp-advance! st) (pl-mk-cut)))
((and (= ty "punct") (= vv "[")) (pp-parse-list st))
((and (= ty "punct") (= vv "("))
(do
(pp-advance! st)
(let
((inner (pp-parse-term-prec st 1200)))
(do (pp-expect! st "punct" ")") inner))))
((= ty "atom")
(do
(pp-advance! st)
@@ -178,51 +133,13 @@
(if (= vv nil) "" vv)
"'"))))))))
;; Operator-aware term parser: precedence climbing.
(define
pp-parse-term-prec
(fn
(st max-prec)
(let ((left (pp-parse-primary st))) (pp-parse-op-rhs st left max-prec))))
(define
pp-parse-op-rhs
(fn
(st left max-prec)
(let
((op-info (pl-token-op (pp-peek st))))
(cond
((nil? op-info) left)
(true
(let
((name (first op-info))
(prec (nth op-info 1))
(ty (nth op-info 2)))
(cond
((> prec max-prec) left)
(true
(let
((right-prec (if (= ty "xfy") prec (- prec 1))))
(do
(pp-advance! st)
(let
((right (pp-parse-term-prec st right-prec)))
(pp-parse-op-rhs
st
(pl-mk-compound name (list left right))
max-prec))))))))))))
;; Backwards-compat alias.
(define pp-parse-term (fn (st) (pp-parse-term-prec st 999)))
;; Args inside parens: parse at prec 999 so comma-as-operator (1000)
;; is not consumed; the explicit comma loop handles separation.
;; Parse one or more comma-separated terms (arguments).
(define
pp-parse-arg-list
(fn
(st)
(let
((first-arg (pp-parse-term-prec st 999)) (args (list)))
((first-arg (pp-parse-term st)) (args (list)))
(do
(append! args first-arg)
(define
@@ -233,12 +150,12 @@
(pp-at? st "punct" ",")
(do
(pp-advance! st)
(append! args (pp-parse-term-prec st 999))
(append! args (pp-parse-term st))
(loop)))))
(loop)
args))))
;; List literal.
;; Parse a [ ... ] list literal. Consumes the "[".
(define
pp-parse-list
(fn
@@ -251,7 +168,7 @@
(let
((items (list)))
(do
(append! items (pp-parse-term-prec st 999))
(append! items (pp-parse-term st))
(define
comma-loop
(fn
@@ -260,17 +177,52 @@
(pp-at? st "punct" ",")
(do
(pp-advance! st)
(append! items (pp-parse-term-prec st 999))
(append! items (pp-parse-term st))
(comma-loop)))))
(comma-loop)
(let
((tail (if (pp-at? st "punct" "|") (do (pp-advance! st) (pp-parse-term-prec st 999)) (pl-nil-term))))
((tail (if (pp-at? st "punct" "|") (do (pp-advance! st) (pp-parse-term st)) (pl-nil-term))))
(do (pp-expect! st "punct" "]") (pl-mk-list-term items tail)))))))))
;; ── Body parsing ────────────────────────────────────────────────────
;; A body is a single term parsed at prec 1200 — operator parser folds
;; `,`, `;`, `->` automatically into right-associative compounds.
(define pp-parse-body (fn (st) (pp-parse-term-prec st 1200)))
;; A clause body is a comma-separated list of goals. We flatten into a
;; right-associative `,` compound: (A, B, C) → ','(A, ','(B, C))
;; If only one goal, it's that goal directly.
(define
pp-parse-body
(fn
(st)
(let
((first-goal (pp-parse-term st)) (rest-goals (list)))
(do
(define
gloop
(fn
()
(when
(pp-at? st "punct" ",")
(do
(pp-advance! st)
(append! rest-goals (pp-parse-term st))
(gloop)))))
(gloop)
(if
(= (len rest-goals) 0)
first-goal
(pp-build-conj first-goal rest-goals))))))
(define
pp-build-conj
(fn
(first-goal rest-goals)
(if
(= (len rest-goals) 0)
first-goal
(pl-mk-compound
","
(list
first-goal
(pp-build-conj (first rest-goals) (rest rest-goals)))))))
;; ── Clause parsing ──────────────────────────────────────────────────
(define
@@ -278,11 +230,12 @@
(fn
(st)
(let
((head (pp-parse-term-prec st 999)))
((head (pp-parse-term st)))
(let
((body (if (pp-at? st "op" ":-") (do (pp-advance! st) (pp-parse-body st)) (pl-mk-atom "true"))))
(do (pp-expect! st "punct" ".") (list "clause" head body))))))
;; Parse an entire program — returns list of clauses.
(define
pl-parse-program
(fn
@@ -300,9 +253,13 @@
(ploop)
clauses))))
;; Parse a single query term (no trailing "."). Returns the term.
(define
pl-parse-query
(fn (tokens) (let ((st {:idx 0 :tokens tokens})) (pp-parse-body st))))
;; Convenience: source → clauses
(define pl-parse (fn (src) (pl-parse-program (pl-tokenize src))))
;; Convenience: source → query term
(define pl-parse-goal (fn (src) (pl-parse-query (pl-tokenize src))))

View File

@@ -1,114 +0,0 @@
;; lib/prolog/query.sx — high-level Prolog query API for SX/Hyperscript callers.
;;
;; Requires tokenizer.sx, parser.sx, runtime.sx to be loaded first.
;;
;; Public API:
;; (pl-load source-str) → db
;; (pl-query-all db query-str) → list of solution dicts {var-name → term-string}
;; (pl-query-one db query-str) → first solution dict or nil
;; (pl-query source-str query-str) → list of solution dicts (convenience)
;; Collect variable name strings from a parse-time AST (pre-instantiation).
;; Returns list of unique strings, excluding anonymous "_".
(define
pl-query-extract-vars
(fn
(ast)
(let
((seen {}))
(let
((collect!
(fn
(t)
(cond
((not (list? t)) nil)
((empty? t) nil)
((= (first t) "var")
(if
(not (= (nth t 1) "_"))
(dict-set! seen (nth t 1) true)
nil))
((= (first t) "compound")
(for-each collect! (nth t 2)))
(true nil)))))
(collect! ast)
(keys seen)))))
;; Build a solution dict from a var-env after a successful solve.
;; Maps each variable name string to its formatted term value.
(define
pl-query-solution-dict
(fn
(var-names var-env)
(let
((d {}))
(for-each
(fn (name) (dict-set! d name (pl-format-term (dict-get var-env name))))
var-names)
d)))
;; Parse source-str and load clauses into a fresh DB.
;; Returns the DB for reuse across multiple queries.
(define
pl-load
(fn
(source-str)
(let
((db (pl-mk-db)))
(if
(and (string? source-str) (not (= source-str "")))
(pl-db-load! db (pl-parse source-str))
nil)
db)))
;; Run query-str against db, returning a list of solution dicts.
;; Each dict maps variable name strings to their formatted term values.
;; Returns an empty list if no solutions.
(define
pl-query-all
(fn
(db query-str)
(let
((parsed (pl-parse (str "q_ :- " query-str "."))))
(let
((body-ast (nth (first parsed) 2)))
(let
((var-names (pl-query-extract-vars body-ast))
(var-env {}))
(let
((goal (pl-instantiate body-ast var-env))
(trail (pl-mk-trail))
(solutions (list)))
(let
((mark (pl-trail-mark trail)))
(pl-solve!
db
goal
trail
{:cut false}
(fn
()
(begin
(append!
solutions
(pl-query-solution-dict var-names var-env))
false)))
(pl-trail-undo-to! trail mark)
solutions)))))))
;; Return the first solution dict, or nil if no solutions.
(define
pl-query-one
(fn
(db query-str)
(let
((all (pl-query-all db query-str)))
(if (empty? all) nil (first all)))))
;; Convenience: parse source-str, then run query-str against it.
;; Returns a list of solution dicts. Creates a fresh DB each call.
(define
pl-query
(fn
(source-str query-str)
(pl-query-all (pl-load source-str) query-str)))

File diff suppressed because it is too large Load Diff

View File

@@ -1,7 +0,0 @@
{
"total_passed": 590,
"total_failed": 0,
"total": 590,
"suites": {"parse":{"passed":25,"total":25,"failed":0},"unify":{"passed":47,"total":47,"failed":0},"clausedb":{"passed":14,"total":14,"failed":0},"solve":{"passed":62,"total":62,"failed":0},"operators":{"passed":19,"total":19,"failed":0},"dynamic":{"passed":11,"total":11,"failed":0},"findall":{"passed":11,"total":11,"failed":0},"term_inspect":{"passed":14,"total":14,"failed":0},"append":{"passed":6,"total":6,"failed":0},"reverse":{"passed":6,"total":6,"failed":0},"member":{"passed":7,"total":7,"failed":0},"nqueens":{"passed":6,"total":6,"failed":0},"family":{"passed":10,"total":10,"failed":0},"atoms":{"passed":34,"total":34,"failed":0},"query_api":{"passed":16,"total":16,"failed":0},"iso_predicates":{"passed":29,"total":29,"failed":0},"meta_predicates":{"passed":25,"total":25,"failed":0},"list_predicates":{"passed":33,"total":33,"failed":0},"meta_call":{"passed":15,"total":15,"failed":0},"set_predicates":{"passed":15,"total":15,"failed":0},"char_predicates":{"passed":27,"total":27,"failed":0},"io_predicates":{"passed":24,"total":24,"failed":0},"assert_rules":{"passed":15,"total":15,"failed":0},"string_agg":{"passed":25,"total":25,"failed":0},"advanced":{"passed":21,"total":21,"failed":0},"compiler":{"passed":17,"total":17,"failed":0},"cross_validate":{"passed":17,"total":17,"failed":0},"integration":{"passed":20,"total":20,"failed":0},"hs_bridge":{"passed":19,"total":19,"failed":0}},
"generated": "2026-05-06T12:17:46+00:00"
}

View File

@@ -1,39 +0,0 @@
# Prolog scoreboard
**590 / 590 passing** (0 failure(s)).
Generated 2026-05-06T12:17:46+00:00.
| Suite | Passed | Total | Status |
|-------|--------|-------|--------|
| parse | 25 | 25 | ok |
| unify | 47 | 47 | ok |
| clausedb | 14 | 14 | ok |
| solve | 62 | 62 | ok |
| operators | 19 | 19 | ok |
| dynamic | 11 | 11 | ok |
| findall | 11 | 11 | ok |
| term_inspect | 14 | 14 | ok |
| append | 6 | 6 | ok |
| reverse | 6 | 6 | ok |
| member | 7 | 7 | ok |
| nqueens | 6 | 6 | ok |
| family | 10 | 10 | ok |
| atoms | 34 | 34 | ok |
| query_api | 16 | 16 | ok |
| iso_predicates | 29 | 29 | ok |
| meta_predicates | 25 | 25 | ok |
| list_predicates | 33 | 33 | ok |
| meta_call | 15 | 15 | ok |
| set_predicates | 15 | 15 | ok |
| char_predicates | 27 | 27 | ok |
| io_predicates | 24 | 24 | ok |
| assert_rules | 15 | 15 | ok |
| string_agg | 25 | 25 | ok |
| advanced | 21 | 21 | ok |
| compiler | 17 | 17 | ok |
| cross_validate | 17 | 17 | ok |
| integration | 20 | 20 | ok |
| hs_bridge | 19 | 19 | ok |
Run `bash lib/prolog/conformance.sh` to refresh. Override the binary
with `SX_SERVER=path/to/sx_server.exe bash …`.

View File

@@ -1,254 +0,0 @@
;; lib/prolog/tests/advanced.sx — predsort/3, term_variables/2, arith extensions
(define pl-adv-test-count 0)
(define pl-adv-test-pass 0)
(define pl-adv-test-fail 0)
(define pl-adv-test-failures (list))
(define
pl-adv-test!
(fn
(name got expected)
(begin
(set! pl-adv-test-count (+ pl-adv-test-count 1))
(if
(= got expected)
(set! pl-adv-test-pass (+ pl-adv-test-pass 1))
(begin
(set! pl-adv-test-fail (+ pl-adv-test-fail 1))
(append!
pl-adv-test-failures
(str name "\n expected: " expected "\n got: " got)))))))
(define
pl-adv-goal
(fn
(src env)
(pl-instantiate (nth (first (pl-parse (str "g :- " src "."))) 2) env)))
(define pl-adv-db (pl-mk-db))
;; Load a numeric comparator for predsort tests
(pl-db-load!
pl-adv-db
(pl-parse
"cmp_num(Order, X, Y) :- (X < Y -> Order = '<' ; (X > Y -> Order = '>' ; Order = '='))."))
;; ── Arithmetic extensions ──────────────────────────────────────────
(define pl-adv-arith-env-1 {:X (pl-mk-rt-var "X")})
(pl-solve-once!
pl-adv-db
(pl-adv-goal "X is floor(3.7)" pl-adv-arith-env-1)
(pl-mk-trail))
(pl-adv-test!
"floor(3.7) = 3"
(pl-num-val (pl-walk-deep (dict-get pl-adv-arith-env-1 "X")))
3)
(define pl-adv-arith-env-2 {:X (pl-mk-rt-var "X")})
(pl-solve-once!
pl-adv-db
(pl-adv-goal "X is ceiling(3.2)" pl-adv-arith-env-2)
(pl-mk-trail))
(pl-adv-test!
"ceiling(3.2) = 4"
(pl-num-val (pl-walk-deep (dict-get pl-adv-arith-env-2 "X")))
4)
(define pl-adv-arith-env-3 {:X (pl-mk-rt-var "X")})
(pl-solve-once!
pl-adv-db
(pl-adv-goal "X is truncate(3.9)" pl-adv-arith-env-3)
(pl-mk-trail))
(pl-adv-test!
"truncate(3.9) = 3"
(pl-num-val (pl-walk-deep (dict-get pl-adv-arith-env-3 "X")))
3)
(define pl-adv-arith-env-4 {:X (pl-mk-rt-var "X")})
(pl-solve-once!
pl-adv-db
(pl-adv-goal "X is truncate(0 - 3.9)" pl-adv-arith-env-4)
(pl-mk-trail))
(pl-adv-test!
"truncate(0-3.9) = -3"
(pl-num-val (pl-walk-deep (dict-get pl-adv-arith-env-4 "X")))
-3)
(define pl-adv-arith-env-5 {:X (pl-mk-rt-var "X")})
(pl-solve-once!
pl-adv-db
(pl-adv-goal "X is round(3.5)" pl-adv-arith-env-5)
(pl-mk-trail))
(pl-adv-test!
"round(3.5) = 4"
(pl-num-val (pl-walk-deep (dict-get pl-adv-arith-env-5 "X")))
4)
(define pl-adv-arith-env-6 {:X (pl-mk-rt-var "X")})
(pl-solve-once!
pl-adv-db
(pl-adv-goal "X is sqrt(4.0)" pl-adv-arith-env-6)
(pl-mk-trail))
(pl-adv-test!
"sqrt(4.0) = 2"
(pl-num-val (pl-walk-deep (dict-get pl-adv-arith-env-6 "X")))
2)
(define pl-adv-arith-env-7 {:X (pl-mk-rt-var "X")})
(pl-solve-once!
pl-adv-db
(pl-adv-goal "X is sign(0 - 5)" pl-adv-arith-env-7)
(pl-mk-trail))
(pl-adv-test!
"sign(0-5) = -1"
(pl-num-val (pl-walk-deep (dict-get pl-adv-arith-env-7 "X")))
-1)
(define pl-adv-arith-env-8 {:X (pl-mk-rt-var "X")})
(pl-solve-once!
pl-adv-db
(pl-adv-goal "X is sign(0)" pl-adv-arith-env-8)
(pl-mk-trail))
(pl-adv-test!
"sign(0) = 0"
(pl-num-val (pl-walk-deep (dict-get pl-adv-arith-env-8 "X")))
0)
(define pl-adv-arith-env-9 {:X (pl-mk-rt-var "X")})
(pl-solve-once!
pl-adv-db
(pl-adv-goal "X is sign(3)" pl-adv-arith-env-9)
(pl-mk-trail))
(pl-adv-test!
"sign(3) = 1"
(pl-num-val (pl-walk-deep (dict-get pl-adv-arith-env-9 "X")))
1)
(define pl-adv-arith-env-10 {:X (pl-mk-rt-var "X")})
(pl-solve-once!
pl-adv-db
(pl-adv-goal "X is pow(2, 3)" pl-adv-arith-env-10)
(pl-mk-trail))
(pl-adv-test!
"pow(2,3) = 8"
(pl-num-val (pl-walk-deep (dict-get pl-adv-arith-env-10 "X")))
8)
(define pl-adv-arith-env-11 {:X (pl-mk-rt-var "X")})
(pl-solve-once!
pl-adv-db
(pl-adv-goal "X is floor(0 - 3.7)" pl-adv-arith-env-11)
(pl-mk-trail))
(pl-adv-test!
"floor(0-3.7) = -4"
(pl-num-val (pl-walk-deep (dict-get pl-adv-arith-env-11 "X")))
-4)
(define pl-adv-arith-env-12 {:X (pl-mk-rt-var "X")})
(pl-solve-once!
pl-adv-db
(pl-adv-goal "X is ceiling(0 - 3.2)" pl-adv-arith-env-12)
(pl-mk-trail))
(pl-adv-test!
"ceiling(0-3.2) = -3"
(pl-num-val (pl-walk-deep (dict-get pl-adv-arith-env-12 "X")))
-3)
;; ── term_variables/2 ──────────────────────────────────────────────
(define pl-adv-tv-env-1 {:Vs (pl-mk-rt-var "Vs")})
(pl-solve-once!
pl-adv-db
(pl-adv-goal "term_variables(hello, Vs)" pl-adv-tv-env-1)
(pl-mk-trail))
(pl-adv-test!
"term_variables(hello,Vs) -> []"
(pl-format-term (pl-walk-deep (dict-get pl-adv-tv-env-1 "Vs")))
"[]")
(define pl-adv-tv-env-2 {:Vs (pl-mk-rt-var "Vs")})
(pl-solve-once!
pl-adv-db
(pl-adv-goal "term_variables(f(a, g(b)), Vs)" pl-adv-tv-env-2)
(pl-mk-trail))
(pl-adv-test!
"term_variables(f(a,g(b)),Vs) -> []"
(pl-format-term (pl-walk-deep (dict-get pl-adv-tv-env-2 "Vs")))
"[]")
(define pl-adv-tv-env-3 {:Y (pl-mk-rt-var "Y") :Vs (pl-mk-rt-var "Vs") :X (pl-mk-rt-var "X")})
(pl-solve-once!
pl-adv-db
(pl-adv-goal "term_variables(f(X, Y), Vs)" pl-adv-tv-env-3)
(pl-mk-trail))
(pl-adv-test!
"term_variables(f(X,Y),Vs) has 2 vars"
(pl-list-length (pl-walk-deep (dict-get pl-adv-tv-env-3 "Vs")))
2)
(define pl-adv-tv-env-4 {:Vs (pl-mk-rt-var "Vs") :X (pl-mk-rt-var "X")})
(pl-solve-once!
pl-adv-db
(pl-adv-goal "term_variables(X, Vs)" pl-adv-tv-env-4)
(pl-mk-trail))
(pl-adv-test!
"term_variables(X,Vs) has 1 var"
(pl-list-length (pl-walk-deep (dict-get pl-adv-tv-env-4 "Vs")))
1)
(define pl-adv-tv-env-5 {:Y (pl-mk-rt-var "Y") :Vs (pl-mk-rt-var "Vs") :X (pl-mk-rt-var "X")})
(pl-solve-once!
pl-adv-db
(pl-adv-goal "term_variables(foo(X, Y, X), Vs)" pl-adv-tv-env-5)
(pl-mk-trail))
(pl-adv-test!
"term_variables(foo(X,Y,X),Vs) deduplicates X -> 2 vars"
(pl-list-length (pl-walk-deep (dict-get pl-adv-tv-env-5 "Vs")))
2)
;; ── predsort/3 ────────────────────────────────────────────────────
(define pl-adv-ps-env-1 {:R (pl-mk-rt-var "R")})
(pl-solve-once!
pl-adv-db
(pl-adv-goal "predsort(cmp_num, [], R)" pl-adv-ps-env-1)
(pl-mk-trail))
(pl-adv-test!
"predsort([]) -> []"
(pl-format-term (pl-walk-deep (dict-get pl-adv-ps-env-1 "R")))
"[]")
(define pl-adv-ps-env-2 {:R (pl-mk-rt-var "R")})
(pl-solve-once!
pl-adv-db
(pl-adv-goal "predsort(cmp_num, [1], R)" pl-adv-ps-env-2)
(pl-mk-trail))
(pl-adv-test!
"predsort([1]) -> [1]"
(pl-format-term (pl-walk-deep (dict-get pl-adv-ps-env-2 "R")))
".(1, [])")
(define pl-adv-ps-env-3 {:R (pl-mk-rt-var "R")})
(pl-solve-once!
pl-adv-db
(pl-adv-goal "predsort(cmp_num, [3,1,2], R)" pl-adv-ps-env-3)
(pl-mk-trail))
(pl-adv-test!
"predsort([3,1,2]) -> [1,2,3]"
(pl-format-term (pl-walk-deep (dict-get pl-adv-ps-env-3 "R")))
".(1, .(2, .(3, [])))")
(define pl-adv-ps-env-4 {:R (pl-mk-rt-var "R")})
(pl-solve-once!
pl-adv-db
(pl-adv-goal "predsort(cmp_num, [3,1,2,1,3], R)" pl-adv-ps-env-4)
(pl-mk-trail))
(pl-adv-test!
"predsort([3,1,2,1,3]) dedup -> [1,2,3]"
(pl-format-term (pl-walk-deep (dict-get pl-adv-ps-env-4 "R")))
".(1, .(2, .(3, [])))")
;; ── Runner ─────────────────────────────────────────────────────────
(define pl-advanced-tests-run! (fn () {:failed pl-adv-test-fail :passed pl-adv-test-pass :total pl-adv-test-count :failures pl-adv-test-failures}))

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@@ -1,215 +0,0 @@
;; lib/prolog/tests/assert_rules.sx — assert/assertz/asserta with rule terms (head :- body)
;; Tests that :- is in the op table (prec 1200 xfx) and pl-build-clause handles rule form.
(define pl-ar-test-count 0)
(define pl-ar-test-pass 0)
(define pl-ar-test-fail 0)
(define pl-ar-test-failures (list))
(define
pl-ar-test!
(fn
(name got expected)
(begin
(set! pl-ar-test-count (+ pl-ar-test-count 1))
(if
(= got expected)
(set! pl-ar-test-pass (+ pl-ar-test-pass 1))
(begin
(set! pl-ar-test-fail (+ pl-ar-test-fail 1))
(append!
pl-ar-test-failures
(str name "\n expected: " expected "\n got: " got)))))))
(define
pl-ar-goal
(fn
(src env)
(pl-instantiate (nth (first (pl-parse (str "g :- " src "."))) 2) env)))
;; ── DB1: assertz a simple rule then query ──────────────────────────
(define pl-ar-db1 (pl-mk-db))
(pl-solve-once!
pl-ar-db1
(pl-ar-goal "assertz((double(X, Y) :- Y is X * 2))" {})
(pl-mk-trail))
(pl-ar-test!
"assertz rule: double(3, Y) succeeds"
(pl-solve-once!
pl-ar-db1
(pl-ar-goal "double(3, Y)" {})
(pl-mk-trail))
true)
(define pl-ar-env1 {})
(pl-solve-once!
pl-ar-db1
(pl-ar-goal "double(3, Y)" pl-ar-env1)
(pl-mk-trail))
(pl-ar-test!
"assertz rule: double(3, Y) binds Y to 6"
(pl-num-val (pl-walk-deep (dict-get pl-ar-env1 "Y")))
6)
(define pl-ar-env1b {})
(pl-solve-once!
pl-ar-db1
(pl-ar-goal "double(10, Y)" pl-ar-env1b)
(pl-mk-trail))
(pl-ar-test!
"assertz rule: double(10, Y) yields 20"
(pl-num-val (pl-walk-deep (dict-get pl-ar-env1b "Y")))
20)
;; ── DB2: assert a rule with multiple facts, count solutions ─────────
(define pl-ar-db2 (pl-mk-db))
(pl-solve-once!
pl-ar-db2
(pl-ar-goal "assert(fact(a))" {})
(pl-mk-trail))
(pl-solve-once!
pl-ar-db2
(pl-ar-goal "assert(fact(b))" {})
(pl-mk-trail))
(pl-solve-once!
pl-ar-db2
(pl-ar-goal "assertz((copy(X) :- fact(X)))" {})
(pl-mk-trail))
(pl-ar-test!
"rule copy/1 using fact/1: 2 solutions"
(pl-solve-count! pl-ar-db2 (pl-ar-goal "copy(X)" {}) (pl-mk-trail))
2)
(define pl-ar-env2a {})
(pl-solve-once! pl-ar-db2 (pl-ar-goal "copy(X)" pl-ar-env2a) (pl-mk-trail))
(pl-ar-test!
"rule copy/1: first solution is a"
(pl-atom-name (pl-walk-deep (dict-get pl-ar-env2a "X")))
"a")
;; ── DB3: asserta rule is tried before existing clauses ─────────────
(define pl-ar-db3 (pl-mk-db))
(pl-solve-once!
pl-ar-db3
(pl-ar-goal "assert(ord(a))" {})
(pl-mk-trail))
(pl-solve-once!
pl-ar-db3
(pl-ar-goal "asserta((ord(b) :- true))" {})
(pl-mk-trail))
(define pl-ar-env3 {})
(pl-solve-once! pl-ar-db3 (pl-ar-goal "ord(X)" pl-ar-env3) (pl-mk-trail))
(pl-ar-test!
"asserta rule ord(b) is tried before ord(a)"
(pl-atom-name (pl-walk-deep (dict-get pl-ar-env3 "X")))
"b")
(pl-ar-test!
"asserta: total solutions for ord/1 is 2"
(pl-solve-count! pl-ar-db3 (pl-ar-goal "ord(X)" {}) (pl-mk-trail))
2)
;; ── DB4: rule with conjunction in body ─────────────────────────────
(define pl-ar-db4 (pl-mk-db))
(pl-solve-once!
pl-ar-db4
(pl-ar-goal "assert(num(1))" {})
(pl-mk-trail))
(pl-solve-once!
pl-ar-db4
(pl-ar-goal "assert(num(2))" {})
(pl-mk-trail))
(pl-solve-once!
pl-ar-db4
(pl-ar-goal "assertz((big(X) :- num(X), X > 1))" {})
(pl-mk-trail))
(pl-ar-test!
"conjunction in rule body: big(1) fails"
(pl-solve-once! pl-ar-db4 (pl-ar-goal "big(1)" {}) (pl-mk-trail))
false)
(pl-ar-test!
"conjunction in rule body: big(2) succeeds"
(pl-solve-once! pl-ar-db4 (pl-ar-goal "big(2)" {}) (pl-mk-trail))
true)
;; ── DB5: recursive rule ─────────────────────────────────────────────
(define pl-ar-db5 (pl-mk-db))
(pl-solve-once!
pl-ar-db5
(pl-ar-goal "assert((nat(0) :- true))" {})
(pl-mk-trail))
(pl-solve-once!
pl-ar-db5
(pl-ar-goal "assertz((nat(s(X)) :- nat(X)))" {})
(pl-mk-trail))
(pl-ar-test!
"recursive rule: nat(0) succeeds"
(pl-solve-once! pl-ar-db5 (pl-ar-goal "nat(0)" {}) (pl-mk-trail))
true)
(pl-ar-test!
"recursive rule: nat(s(0)) succeeds"
(pl-solve-once!
pl-ar-db5
(pl-ar-goal "nat(s(0))" {})
(pl-mk-trail))
true)
(pl-ar-test!
"recursive rule: nat(s(s(0))) succeeds"
(pl-solve-once!
pl-ar-db5
(pl-ar-goal "nat(s(s(0)))" {})
(pl-mk-trail))
true)
(pl-ar-test!
"recursive rule: nat(bad) fails"
(pl-solve-once! pl-ar-db5 (pl-ar-goal "nat(bad)" {}) (pl-mk-trail))
false)
;; ── DB6: rule with true body (explicit) ────────────────────────────
(define pl-ar-db6 (pl-mk-db))
(pl-solve-once!
pl-ar-db6
(pl-ar-goal "assertz((always(X) :- true))" {})
(pl-mk-trail))
(pl-solve-once!
pl-ar-db6
(pl-ar-goal "assert(always(extra))" {})
(pl-mk-trail))
(pl-ar-test!
"rule body=true: always(foo) succeeds"
(pl-solve-once!
pl-ar-db6
(pl-ar-goal "always(foo)" {})
(pl-mk-trail))
true)
(pl-ar-test!
"rule body=true: always/1 has 2 clauses (1 rule + 1 fact)"
(pl-solve-count!
pl-ar-db6
(pl-ar-goal "always(X)" {})
(pl-mk-trail))
2)
;; ── Runner ──────────────────────────────────────────────────────────
(define pl-assert-rules-tests-run! (fn () {:failed pl-ar-test-fail :passed pl-ar-test-pass :total pl-ar-test-count :failures pl-ar-test-failures}))

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@@ -1,305 +0,0 @@
;; lib/prolog/tests/atoms.sx — type predicates + string/atom built-ins
(define pl-at-test-count 0)
(define pl-at-test-pass 0)
(define pl-at-test-fail 0)
(define pl-at-test-failures (list))
(define
pl-at-test!
(fn
(name got expected)
(begin
(set! pl-at-test-count (+ pl-at-test-count 1))
(if
(= got expected)
(set! pl-at-test-pass (+ pl-at-test-pass 1))
(begin
(set! pl-at-test-fail (+ pl-at-test-fail 1))
(append!
pl-at-test-failures
(str name "\n expected: " expected "\n got: " got)))))))
(define
pl-at-goal
(fn
(src env)
(pl-instantiate (nth (first (pl-parse (str "g :- " src "."))) 2) env)))
(define pl-at-db (pl-mk-db))
;; ── var/1 + nonvar/1 ──
(pl-at-test!
"var(X) for unbound var"
(pl-solve-once! pl-at-db (pl-at-goal "var(X)" {}) (pl-mk-trail))
true)
(pl-at-test!
"var(foo) fails"
(pl-solve-once! pl-at-db (pl-at-goal "var(foo)" {}) (pl-mk-trail))
false)
(pl-at-test!
"nonvar(foo) succeeds"
(pl-solve-once!
pl-at-db
(pl-at-goal "nonvar(foo)" {})
(pl-mk-trail))
true)
(pl-at-test!
"nonvar(X) for unbound var fails"
(pl-solve-once! pl-at-db (pl-at-goal "nonvar(X)" {}) (pl-mk-trail))
false)
;; ── atom/1 ──
(pl-at-test!
"atom(foo) succeeds"
(pl-solve-once! pl-at-db (pl-at-goal "atom(foo)" {}) (pl-mk-trail))
true)
(pl-at-test!
"atom([]) succeeds"
(pl-solve-once! pl-at-db (pl-at-goal "atom([])" {}) (pl-mk-trail))
true)
(pl-at-test!
"atom(42) fails"
(pl-solve-once! pl-at-db (pl-at-goal "atom(42)" {}) (pl-mk-trail))
false)
(pl-at-test!
"atom(f(x)) fails"
(pl-solve-once!
pl-at-db
(pl-at-goal "atom(f(x))" {})
(pl-mk-trail))
false)
;; ── number/1 + integer/1 ──
(pl-at-test!
"number(42) succeeds"
(pl-solve-once!
pl-at-db
(pl-at-goal "number(42)" {})
(pl-mk-trail))
true)
(pl-at-test!
"number(foo) fails"
(pl-solve-once!
pl-at-db
(pl-at-goal "number(foo)" {})
(pl-mk-trail))
false)
(pl-at-test!
"integer(7) succeeds"
(pl-solve-once!
pl-at-db
(pl-at-goal "integer(7)" {})
(pl-mk-trail))
true)
;; ── compound/1 + callable/1 + atomic/1 ──
(pl-at-test!
"compound(f(x)) succeeds"
(pl-solve-once!
pl-at-db
(pl-at-goal "compound(f(x))" {})
(pl-mk-trail))
true)
(pl-at-test!
"compound(foo) fails"
(pl-solve-once!
pl-at-db
(pl-at-goal "compound(foo)" {})
(pl-mk-trail))
false)
(pl-at-test!
"callable(foo) succeeds"
(pl-solve-once!
pl-at-db
(pl-at-goal "callable(foo)" {})
(pl-mk-trail))
true)
(pl-at-test!
"callable(f(x)) succeeds"
(pl-solve-once!
pl-at-db
(pl-at-goal "callable(f(x))" {})
(pl-mk-trail))
true)
(pl-at-test!
"callable(42) fails"
(pl-solve-once!
pl-at-db
(pl-at-goal "callable(42)" {})
(pl-mk-trail))
false)
(pl-at-test!
"atomic(foo) succeeds"
(pl-solve-once!
pl-at-db
(pl-at-goal "atomic(foo)" {})
(pl-mk-trail))
true)
(pl-at-test!
"atomic(42) succeeds"
(pl-solve-once!
pl-at-db
(pl-at-goal "atomic(42)" {})
(pl-mk-trail))
true)
(pl-at-test!
"atomic(f(x)) fails"
(pl-solve-once!
pl-at-db
(pl-at-goal "atomic(f(x))" {})
(pl-mk-trail))
false)
;; ── is_list/1 ──
(pl-at-test!
"is_list([]) succeeds"
(pl-solve-once!
pl-at-db
(pl-at-goal "is_list([])" {})
(pl-mk-trail))
true)
(pl-at-test!
"is_list([1,2,3]) succeeds"
(pl-solve-once!
pl-at-db
(pl-at-goal "is_list([1,2,3])" {})
(pl-mk-trail))
true)
(pl-at-test!
"is_list(foo) fails"
(pl-solve-once!
pl-at-db
(pl-at-goal "is_list(foo)" {})
(pl-mk-trail))
false)
;; ── atom_length/2 ──
(define pl-at-env-al {})
(pl-solve-once!
pl-at-db
(pl-at-goal "atom_length(hello, N)" pl-at-env-al)
(pl-mk-trail))
(pl-at-test!
"atom_length(hello, N) -> N=5"
(pl-num-val (pl-walk-deep (dict-get pl-at-env-al "N")))
5)
(pl-at-test!
"atom_length empty atom"
(pl-solve-once!
pl-at-db
(pl-at-goal "atom_length('', 0)" {})
(pl-mk-trail))
true)
;; ── atom_concat/3 ──
(define pl-at-env-ac {})
(pl-solve-once!
pl-at-db
(pl-at-goal "atom_concat(foo, bar, X)" pl-at-env-ac)
(pl-mk-trail))
(pl-at-test!
"atom_concat(foo, bar, X) -> X=foobar"
(pl-atom-name (pl-walk-deep (dict-get pl-at-env-ac "X")))
"foobar")
(pl-at-test!
"atom_concat(foo, bar, foobar) check"
(pl-solve-once!
pl-at-db
(pl-at-goal "atom_concat(foo, bar, foobar)" {})
(pl-mk-trail))
true)
(pl-at-test!
"atom_concat(foo, bar, foobaz) fails"
(pl-solve-once!
pl-at-db
(pl-at-goal "atom_concat(foo, bar, foobaz)" {})
(pl-mk-trail))
false)
(define pl-at-env-ac2 {})
(pl-solve-once!
pl-at-db
(pl-at-goal "atom_concat(foo, Y, foobar)" pl-at-env-ac2)
(pl-mk-trail))
(pl-at-test!
"atom_concat(foo, Y, foobar) -> Y=bar"
(pl-atom-name (pl-walk-deep (dict-get pl-at-env-ac2 "Y")))
"bar")
;; ── atom_chars/2 ──
(define pl-at-env-ach {})
(pl-solve-once!
pl-at-db
(pl-at-goal "atom_chars(cat, Cs)" pl-at-env-ach)
(pl-mk-trail))
(pl-at-test!
"atom_chars(cat, Cs) -> Cs=[c,a,t]"
(pl-solve-once!
pl-at-db
(pl-at-goal "atom_chars(cat, [c,a,t])" {})
(pl-mk-trail))
true)
(define pl-at-env-ach2 {})
(pl-solve-once!
pl-at-db
(pl-at-goal "atom_chars(A, [h,i])" pl-at-env-ach2)
(pl-mk-trail))
(pl-at-test!
"atom_chars(A, [h,i]) -> A=hi"
(pl-atom-name (pl-walk-deep (dict-get pl-at-env-ach2 "A")))
"hi")
;; ── char_code/2 ──
(define pl-at-env-cc {})
(pl-solve-once!
pl-at-db
(pl-at-goal "char_code(a, N)" pl-at-env-cc)
(pl-mk-trail))
(pl-at-test!
"char_code(a, N) -> N=97"
(pl-num-val (pl-walk-deep (dict-get pl-at-env-cc "N")))
97)
(define pl-at-env-cc2 {})
(pl-solve-once!
pl-at-db
(pl-at-goal "char_code(C, 65)" pl-at-env-cc2)
(pl-mk-trail))
(pl-at-test!
"char_code(C, 65) -> C='A'"
(pl-atom-name (pl-walk-deep (dict-get pl-at-env-cc2 "C")))
"A")
;; ── number_codes/2 ──
(pl-at-test!
"number_codes(42, [52,50])"
(pl-solve-once!
pl-at-db
(pl-at-goal "number_codes(42, [52,50])" {})
(pl-mk-trail))
true)
;; ── number_chars/2 ──
(pl-at-test!
"number_chars(42, ['4','2'])"
(pl-solve-once!
pl-at-db
(pl-at-goal "number_chars(42, ['4','2'])" {})
(pl-mk-trail))
true)
(define pl-atom-tests-run! (fn () {:failed pl-at-test-fail :passed pl-at-test-pass :total pl-at-test-count :failures pl-at-test-failures}))

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@@ -1,290 +0,0 @@
;; lib/prolog/tests/char_predicates.sx — char_type/2, upcase_atom/2, downcase_atom/2,
;; string_upper/2, string_lower/2
(define pl-cp-test-count 0)
(define pl-cp-test-pass 0)
(define pl-cp-test-fail 0)
(define pl-cp-test-failures (list))
(define
pl-cp-test!
(fn
(name got expected)
(begin
(set! pl-cp-test-count (+ pl-cp-test-count 1))
(if
(= got expected)
(set! pl-cp-test-pass (+ pl-cp-test-pass 1))
(begin
(set! pl-cp-test-fail (+ pl-cp-test-fail 1))
(append!
pl-cp-test-failures
(str name "\n expected: " expected "\n got: " got)))))))
(define
pl-cp-goal
(fn
(src env)
(pl-instantiate (nth (first (pl-parse (str "g :- " src "."))) 2) env)))
(define pl-cp-db (pl-mk-db))
;; ─── char_type/2 — alpha ──────────────────────────────────────────
(pl-cp-test!
"char_type(a, alpha) succeeds"
(pl-solve-once!
pl-cp-db
(pl-cp-goal "char_type(a, alpha)" {})
(pl-mk-trail))
true)
(pl-cp-test!
"char_type('1', alpha) fails"
(pl-solve-once!
pl-cp-db
(pl-cp-goal "char_type('1', alpha)" {})
(pl-mk-trail))
false)
(pl-cp-test!
"char_type('A', alpha) succeeds"
(pl-solve-once!
pl-cp-db
(pl-cp-goal "char_type('A', alpha)" {})
(pl-mk-trail))
true)
;; ─── char_type/2 — alnum ─────────────────────────────────────────
(pl-cp-test!
"char_type('5', alnum) succeeds"
(pl-solve-once!
pl-cp-db
(pl-cp-goal "char_type('5', alnum)" {})
(pl-mk-trail))
true)
(pl-cp-test!
"char_type(a, alnum) succeeds"
(pl-solve-once!
pl-cp-db
(pl-cp-goal "char_type(a, alnum)" {})
(pl-mk-trail))
true)
(pl-cp-test!
"char_type(' ', alnum) fails"
(pl-solve-once!
pl-cp-db
(pl-cp-goal "char_type(' ', alnum)" {})
(pl-mk-trail))
false)
;; ─── char_type/2 — digit ─────────────────────────────────────────
(pl-cp-test!
"char_type('5', digit) succeeds"
(pl-solve-once!
pl-cp-db
(pl-cp-goal "char_type('5', digit)" {})
(pl-mk-trail))
true)
(pl-cp-test!
"char_type(a, digit) fails"
(pl-solve-once!
pl-cp-db
(pl-cp-goal "char_type(a, digit)" {})
(pl-mk-trail))
false)
;; ─── char_type/2 — digit(Weight) ─────────────────────────────────
(define pl-cp-env-dw {})
(pl-solve-once!
pl-cp-db
(pl-cp-goal "char_type('5', digit(N))" pl-cp-env-dw)
(pl-mk-trail))
(pl-cp-test!
"char_type('5', digit(N)) -> N=5"
(pl-num-val (pl-walk-deep (dict-get pl-cp-env-dw "N")))
5)
(define pl-cp-env-dw0 {})
(pl-solve-once!
pl-cp-db
(pl-cp-goal "char_type('0', digit(N))" pl-cp-env-dw0)
(pl-mk-trail))
(pl-cp-test!
"char_type('0', digit(N)) -> N=0"
(pl-num-val (pl-walk-deep (dict-get pl-cp-env-dw0 "N")))
0)
;; ─── char_type/2 — space/white ───────────────────────────────────
(pl-cp-test!
"char_type(' ', space) succeeds"
(pl-solve-once!
pl-cp-db
(pl-cp-goal "char_type(' ', space)" {})
(pl-mk-trail))
true)
(pl-cp-test!
"char_type(a, space) fails"
(pl-solve-once!
pl-cp-db
(pl-cp-goal "char_type(a, space)" {})
(pl-mk-trail))
false)
;; ─── char_type/2 — upper(Lower) ──────────────────────────────────
(define pl-cp-env-ul {})
(pl-solve-once!
pl-cp-db
(pl-cp-goal "char_type('A', upper(L))" pl-cp-env-ul)
(pl-mk-trail))
(pl-cp-test!
"char_type('A', upper(L)) -> L=a"
(pl-atom-name (pl-walk-deep (dict-get pl-cp-env-ul "L")))
"a")
(pl-cp-test!
"char_type(a, upper(L)) fails — not uppercase"
(pl-solve-once!
pl-cp-db
(pl-cp-goal "char_type(a, upper(_))" {})
(pl-mk-trail))
false)
;; ─── char_type/2 — lower(Upper) ──────────────────────────────────
(define pl-cp-env-lu {})
(pl-solve-once!
pl-cp-db
(pl-cp-goal "char_type(a, lower(U))" pl-cp-env-lu)
(pl-mk-trail))
(pl-cp-test!
"char_type(a, lower(U)) -> U='A'"
(pl-atom-name (pl-walk-deep (dict-get pl-cp-env-lu "U")))
"A")
;; ─── char_type/2 — ascii(Code) ───────────────────────────────────
(define pl-cp-env-as {})
(pl-solve-once!
pl-cp-db
(pl-cp-goal "char_type(a, ascii(C))" pl-cp-env-as)
(pl-mk-trail))
(pl-cp-test!
"char_type(a, ascii(C)) -> C=97"
(pl-num-val (pl-walk-deep (dict-get pl-cp-env-as "C")))
97)
;; ─── char_type/2 — punct ─────────────────────────────────────────
(pl-cp-test!
"char_type('.', punct) succeeds"
(pl-solve-once!
pl-cp-db
(pl-cp-goal "char_type('.', punct)" {})
(pl-mk-trail))
true)
(pl-cp-test!
"char_type(a, punct) fails"
(pl-solve-once!
pl-cp-db
(pl-cp-goal "char_type(a, punct)" {})
(pl-mk-trail))
false)
;; ─── upcase_atom/2 ───────────────────────────────────────────────
(define pl-cp-env-ua {})
(pl-solve-once!
pl-cp-db
(pl-cp-goal "upcase_atom(hello, X)" pl-cp-env-ua)
(pl-mk-trail))
(pl-cp-test!
"upcase_atom(hello, X) -> X='HELLO'"
(pl-atom-name (pl-walk-deep (dict-get pl-cp-env-ua "X")))
"HELLO")
(pl-cp-test!
"upcase_atom(hello, 'HELLO') succeeds"
(pl-solve-once!
pl-cp-db
(pl-cp-goal "upcase_atom(hello, 'HELLO')" {})
(pl-mk-trail))
true)
(pl-cp-test!
"upcase_atom('Hello World', 'HELLO WORLD') succeeds"
(pl-solve-once!
pl-cp-db
(pl-cp-goal "upcase_atom('Hello World', 'HELLO WORLD')" {})
(pl-mk-trail))
true)
(pl-cp-test!
"upcase_atom('', '') succeeds"
(pl-solve-once!
pl-cp-db
(pl-cp-goal "upcase_atom('', '')" {})
(pl-mk-trail))
true)
;; ─── downcase_atom/2 ─────────────────────────────────────────────
(define pl-cp-env-da {})
(pl-solve-once!
pl-cp-db
(pl-cp-goal "downcase_atom('HELLO', X)" pl-cp-env-da)
(pl-mk-trail))
(pl-cp-test!
"downcase_atom('HELLO', X) -> X=hello"
(pl-atom-name (pl-walk-deep (dict-get pl-cp-env-da "X")))
"hello")
(pl-cp-test!
"downcase_atom('HELLO', hello) succeeds"
(pl-solve-once!
pl-cp-db
(pl-cp-goal "downcase_atom('HELLO', hello)" {})
(pl-mk-trail))
true)
(pl-cp-test!
"downcase_atom(hello, hello) succeeds — already lowercase"
(pl-solve-once!
pl-cp-db
(pl-cp-goal "downcase_atom(hello, hello)" {})
(pl-mk-trail))
true)
;; ─── string_upper/2 + string_lower/2 (aliases) ───────────────────
(define pl-cp-env-su {})
(pl-solve-once!
pl-cp-db
(pl-cp-goal "string_upper(hello, X)" pl-cp-env-su)
(pl-mk-trail))
(pl-cp-test!
"string_upper(hello, X) -> X='HELLO'"
(pl-atom-name (pl-walk-deep (dict-get pl-cp-env-su "X")))
"HELLO")
(define pl-cp-env-sl {})
(pl-solve-once!
pl-cp-db
(pl-cp-goal "string_lower('WORLD', X)" pl-cp-env-sl)
(pl-mk-trail))
(pl-cp-test!
"string_lower('WORLD', X) -> X=world"
(pl-atom-name (pl-walk-deep (dict-get pl-cp-env-sl "X")))
"world")
(define pl-char-predicates-tests-run! (fn () {:failed pl-cp-test-fail :passed pl-cp-test-pass :total pl-cp-test-count :failures pl-cp-test-failures}))

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;; lib/prolog/tests/clausedb.sx — Clause DB unit tests
(define pl-db-test-count 0)
(define pl-db-test-pass 0)
(define pl-db-test-fail 0)
(define pl-db-test-failures (list))
(define
pl-db-test!
(fn
(name got expected)
(begin
(set! pl-db-test-count (+ pl-db-test-count 1))
(if
(= got expected)
(set! pl-db-test-pass (+ pl-db-test-pass 1))
(begin
(set! pl-db-test-fail (+ pl-db-test-fail 1))
(append!
pl-db-test-failures
(str name "\n expected: " expected "\n got: " got)))))))
(pl-db-test!
"head-key atom arity 0"
(pl-head-key (nth (first (pl-parse "foo.")) 1))
"foo/0")
(pl-db-test!
"head-key compound arity 2"
(pl-head-key (nth (first (pl-parse "bar(a, b).")) 1))
"bar/2")
(pl-db-test!
"clause-key of :- clause"
(pl-clause-key (first (pl-parse "likes(mary, X) :- friendly(X).")))
"likes/2")
(pl-db-test!
"empty db lookup returns empty list"
(len (pl-db-lookup (pl-mk-db) "parent/2"))
0)
(define pl-db-t1 (pl-mk-db))
(pl-db-load! pl-db-t1 (pl-parse "foo(a). foo(b). foo(c)."))
(pl-db-test!
"three facts same functor"
(len (pl-db-lookup pl-db-t1 "foo/1"))
3)
(pl-db-test!
"mismatching key returns empty"
(len (pl-db-lookup pl-db-t1 "foo/2"))
0)
(pl-db-test!
"first clause has arg a"
(pl-atom-name
(first (pl-args (nth (first (pl-db-lookup pl-db-t1 "foo/1")) 1))))
"a")
(pl-db-test!
"third clause has arg c"
(pl-atom-name
(first (pl-args (nth (nth (pl-db-lookup pl-db-t1 "foo/1") 2) 1))))
"c")
(define pl-db-t2 (pl-mk-db))
(pl-db-load! pl-db-t2 (pl-parse "foo. bar. foo. parent(a, b). parent(c, d)."))
(pl-db-test!
"atom heads keyed as foo/0"
(len (pl-db-lookup pl-db-t2 "foo/0"))
2)
(pl-db-test!
"atom heads keyed as bar/0"
(len (pl-db-lookup pl-db-t2 "bar/0"))
1)
(pl-db-test!
"compound heads keyed as parent/2"
(len (pl-db-lookup pl-db-t2 "parent/2"))
2)
(pl-db-test!
"lookup-goal extracts functor/arity"
(len
(pl-db-lookup-goal pl-db-t2 (nth (first (pl-parse "parent(X, Y).")) 1)))
2)
(pl-db-test!
"lookup-goal on atom goal"
(len (pl-db-lookup-goal pl-db-t2 (nth (first (pl-parse "foo.")) 1)))
2)
(pl-db-test!
"stored clause is clause form"
(first (first (pl-db-lookup pl-db-t2 "parent/2")))
"clause")
(define pl-clausedb-tests-run! (fn () {:failed pl-db-test-fail :passed pl-db-test-pass :total pl-db-test-count :failures pl-db-test-failures}))

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@@ -1,185 +0,0 @@
;; lib/prolog/tests/compiler.sx — compiled clause dispatch tests
(define pl-cmp-test-count 0)
(define pl-cmp-test-pass 0)
(define pl-cmp-test-fail 0)
(define pl-cmp-test-failures (list))
(define
pl-cmp-test!
(fn
(name got expected)
(set! pl-cmp-test-count (+ pl-cmp-test-count 1))
(if
(= got expected)
(set! pl-cmp-test-pass (+ pl-cmp-test-pass 1))
(begin
(set! pl-cmp-test-fail (+ pl-cmp-test-fail 1))
(append! pl-cmp-test-failures name)))))
;; Load src, compile, return DB.
(define
pl-cmp-mk
(fn
(src)
(let
((db (pl-mk-db)))
(pl-db-load! db (pl-parse src))
(pl-compile-db! db)
db)))
;; Run goal string against compiled DB; return bool (instantiates vars).
(define
pl-cmp-once
(fn
(db src)
(pl-solve-once!
db
(pl-instantiate (pl-parse-goal src) {})
(pl-mk-trail))))
;; Count solutions for goal string against compiled DB.
(define
pl-cmp-count
(fn
(db src)
(pl-solve-count!
db
(pl-instantiate (pl-parse-goal src) {})
(pl-mk-trail))))
;; ── 1. Simple facts ──────────────────────────────────────────────
(define pl-cmp-db1 (pl-cmp-mk "color(red). color(green). color(blue)."))
(pl-cmp-test! "compiled fact hit" (pl-cmp-once pl-cmp-db1 "color(red)") true)
(pl-cmp-test!
"compiled fact miss"
(pl-cmp-once pl-cmp-db1 "color(yellow)")
false)
(pl-cmp-test! "compiled fact count" (pl-cmp-count pl-cmp-db1 "color(X)") 3)
;; ── 2. Recursive rule: append ────────────────────────────────────
(define
pl-cmp-db2
(pl-cmp-mk "append([], L, L). append([H|T], L, [H|R]) :- append(T, L, R)."))
(pl-cmp-test!
"compiled append build"
(pl-cmp-once pl-cmp-db2 "append([1,2],[3],[1,2,3])")
true)
(pl-cmp-test!
"compiled append fail"
(pl-cmp-once pl-cmp-db2 "append([1,2],[3],[1,2])")
false)
(pl-cmp-test!
"compiled append split count"
(pl-cmp-count pl-cmp-db2 "append(X, Y, [a,b])")
3)
;; ── 3. Cut ───────────────────────────────────────────────────────
(define
pl-cmp-db3
(pl-cmp-mk "first(X, [X|_]) :- !. first(X, [_|T]) :- first(X, T)."))
(pl-cmp-test!
"compiled cut: only one solution"
(pl-cmp-count pl-cmp-db3 "first(X, [a,b,c])")
1)
(let
((db pl-cmp-db3) (trail (pl-mk-trail)) (env {}))
(let
((x (pl-mk-rt-var "X")))
(dict-set! env "X" x)
(pl-solve-once!
db
(pl-instantiate (pl-parse-goal "first(X, [a,b,c])") env)
trail)
(pl-cmp-test!
"compiled cut: correct binding"
(pl-atom-name (pl-walk x))
"a")))
;; ── 4. member ────────────────────────────────────────────────────
(define
pl-cmp-db4
(pl-cmp-mk "member(X, [X|_]). member(X, [_|T]) :- member(X, T)."))
(pl-cmp-test!
"compiled member hit"
(pl-cmp-once pl-cmp-db4 "member(b, [a,b,c])")
true)
(pl-cmp-test!
"compiled member miss"
(pl-cmp-once pl-cmp-db4 "member(d, [a,b,c])")
false)
(pl-cmp-test!
"compiled member count"
(pl-cmp-count pl-cmp-db4 "member(X, [a,b,c])")
3)
;; ── 5. Arithmetic in body ────────────────────────────────────────
(define pl-cmp-db5 (pl-cmp-mk "double(X, Y) :- Y is X * 2."))
(let
((db pl-cmp-db5) (trail (pl-mk-trail)) (env {}))
(let
((y (pl-mk-rt-var "Y")))
(dict-set! env "Y" y)
(pl-solve-once!
db
(pl-instantiate (pl-parse-goal "double(5, Y)") env)
trail)
(pl-cmp-test! "compiled arithmetic in body" (pl-num-val (pl-walk y)) 10)))
;; ── 6. Transitive ancestor ───────────────────────────────────────
(define
pl-cmp-db6
(pl-cmp-mk
(str
"parent(a,b). parent(b,c). parent(c,d)."
"ancestor(X,Y) :- parent(X,Y)."
"ancestor(X,Y) :- parent(X,Z), ancestor(Z,Y).")))
(pl-cmp-test!
"compiled ancestor direct"
(pl-cmp-once pl-cmp-db6 "ancestor(a,b)")
true)
(pl-cmp-test!
"compiled ancestor 3-step"
(pl-cmp-once pl-cmp-db6 "ancestor(a,d)")
true)
(pl-cmp-test!
"compiled ancestor fail"
(pl-cmp-once pl-cmp-db6 "ancestor(d,a)")
false)
;; ── 7. Fallback: uncompiled predicate calls compiled sub-predicate
(define
pl-cmp-db7
(let
((db (pl-mk-db)))
(pl-db-load! db (pl-parse "q(1). q(2)."))
(pl-compile-db! db)
(pl-db-load! db (pl-parse "r(X) :- q(X)."))
db))
(pl-cmp-test!
"uncompiled predicate resolves"
(pl-cmp-once pl-cmp-db7 "r(1)")
true)
(pl-cmp-test!
"uncompiled calls compiled sub-pred count"
(pl-cmp-count pl-cmp-db7 "r(X)")
2)
;; ── Runner ───────────────────────────────────────────────────────
(define pl-compiler-tests-run! (fn () {:failed pl-cmp-test-fail :passed pl-cmp-test-pass :total pl-cmp-test-count :failures pl-cmp-test-failures}))

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@@ -1,86 +0,0 @@
;; lib/prolog/tests/cross_validate.sx
;; Verifies that the compiled solver produces the same solution counts as the
;; interpreter for each classic program + built-in exercise.
;; Interpreter is the reference: if they disagree, the compiler is wrong.
(define pl-xv-test-count 0)
(define pl-xv-test-pass 0)
(define pl-xv-test-fail 0)
(define pl-xv-test-failures (list))
(define
pl-xv-test!
(fn
(name got expected)
(set! pl-xv-test-count (+ pl-xv-test-count 1))
(if
(= got expected)
(set! pl-xv-test-pass (+ pl-xv-test-pass 1))
(begin
(set! pl-xv-test-fail (+ pl-xv-test-fail 1))
(append! pl-xv-test-failures name)))))
;; Shorthand: assert compiled result matches interpreter.
(define
pl-xv-match!
(fn
(name src goal)
(pl-xv-test! name (pl-compiled-matches-interp? src goal) true)))
;; ── 1. append/3 ─────────────────────────────────────────────────
(define
pl-xv-append
"append([], L, L). append([H|T], L, [H|R]) :- append(T, L, R).")
(pl-xv-match! "append build 2+2" pl-xv-append "append([1,2],[3,4],X)")
(pl-xv-match! "append split [a,b,c]" pl-xv-append "append(X, Y, [a,b,c])")
(pl-xv-match! "append member-mode" pl-xv-append "append(_, [3], [1,2,3])")
;; ── 2. member/2 ─────────────────────────────────────────────────
(define pl-xv-member "member(X, [X|_]). member(X, [_|T]) :- member(X, T).")
(pl-xv-match! "member check hit" pl-xv-member "member(b, [a,b,c])")
(pl-xv-match! "member count" pl-xv-member "member(X, [a,b,c])")
(pl-xv-match! "member empty" pl-xv-member "member(X, [])")
;; ── 3. facts + transitive rules ─────────────────────────────────
(define
pl-xv-ancestor
(str
"parent(a,b). parent(b,c). parent(c,d). parent(a,c)."
"ancestor(X,Y) :- parent(X,Y)."
"ancestor(X,Y) :- parent(X,Z), ancestor(Z,Y)."))
(pl-xv-match! "ancestor direct" pl-xv-ancestor "ancestor(a,b)")
(pl-xv-match! "ancestor transitive" pl-xv-ancestor "ancestor(a,d)")
(pl-xv-match! "ancestor all from a" pl-xv-ancestor "ancestor(a,Y)")
;; ── 4. cut semantics ────────────────────────────────────────────
(define pl-xv-cut "first(X,[X|_]) :- !. first(X,[_|T]) :- first(X,T).")
(pl-xv-match! "cut one solution" pl-xv-cut "first(X,[a,b,c])")
(pl-xv-match! "cut empty list" pl-xv-cut "first(X,[])")
;; ── 5. arithmetic ───────────────────────────────────────────────
(define pl-xv-arith "sq(X,Y) :- Y is X * X. even(X) :- 0 is X mod 2.")
(pl-xv-match! "sq(3,Y) count" pl-xv-arith "sq(3,Y)")
(pl-xv-match! "sq(3,9) check" pl-xv-arith "sq(3,9)")
(pl-xv-match! "even(4) check" pl-xv-arith "even(4)")
(pl-xv-match! "even(3) check" pl-xv-arith "even(3)")
;; ── 6. if-then-else ─────────────────────────────────────────────
(define pl-xv-ite "classify(X, pos) :- X > 0, !. classify(_, nonpos).")
(pl-xv-match! "classify positive" pl-xv-ite "classify(5, C)")
(pl-xv-match! "classify zero" pl-xv-ite "classify(0, C)")
;; ── Runner ───────────────────────────────────────────────────────
(define pl-cross-validate-tests-run! (fn () {:failed pl-xv-test-fail :passed pl-xv-test-pass :total pl-xv-test-count :failures pl-xv-test-failures}))

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@@ -1,158 +0,0 @@
;; lib/prolog/tests/dynamic.sx — assert/asserta/assertz/retract.
(define pl-dy-test-count 0)
(define pl-dy-test-pass 0)
(define pl-dy-test-fail 0)
(define pl-dy-test-failures (list))
(define
pl-dy-test!
(fn
(name got expected)
(begin
(set! pl-dy-test-count (+ pl-dy-test-count 1))
(if
(= got expected)
(set! pl-dy-test-pass (+ pl-dy-test-pass 1))
(begin
(set! pl-dy-test-fail (+ pl-dy-test-fail 1))
(append!
pl-dy-test-failures
(str name "\n expected: " expected "\n got: " got)))))))
(define
pl-dy-goal
(fn
(src env)
(pl-instantiate (nth (first (pl-parse (str "g :- " src "."))) 2) env)))
;; assertz then query
(define pl-dy-db1 (pl-mk-db))
(pl-solve-once!
pl-dy-db1
(pl-dy-goal "assertz(foo(1))" {})
(pl-mk-trail))
(pl-dy-test!
"assertz(foo(1)) + foo(1)"
(pl-solve-once! pl-dy-db1 (pl-dy-goal "foo(1)" {}) (pl-mk-trail))
true)
(pl-dy-test!
"after one assertz, foo/1 has 1 clause"
(pl-solve-count! pl-dy-db1 (pl-dy-goal "foo(X)" {}) (pl-mk-trail))
1)
;; assertz appends — order preserved
(define pl-dy-db2 (pl-mk-db))
(pl-solve-once!
pl-dy-db2
(pl-dy-goal "assertz(p(1))" {})
(pl-mk-trail))
(pl-solve-once!
pl-dy-db2
(pl-dy-goal "assertz(p(2))" {})
(pl-mk-trail))
(pl-dy-test!
"assertz twice — count 2"
(pl-solve-count! pl-dy-db2 (pl-dy-goal "p(X)" {}) (pl-mk-trail))
2)
(define pl-dy-env-a {})
(pl-solve-once! pl-dy-db2 (pl-dy-goal "p(X)" pl-dy-env-a) (pl-mk-trail))
(pl-dy-test!
"assertz: first solution is the first asserted (1)"
(pl-num-val (pl-walk-deep (dict-get pl-dy-env-a "X")))
1)
;; asserta prepends
(define pl-dy-db3 (pl-mk-db))
(pl-solve-once!
pl-dy-db3
(pl-dy-goal "assertz(p(1))" {})
(pl-mk-trail))
(pl-solve-once!
pl-dy-db3
(pl-dy-goal "asserta(p(99))" {})
(pl-mk-trail))
(define pl-dy-env-b {})
(pl-solve-once! pl-dy-db3 (pl-dy-goal "p(X)" pl-dy-env-b) (pl-mk-trail))
(pl-dy-test!
"asserta: prepended clause is first solution"
(pl-num-val (pl-walk-deep (dict-get pl-dy-env-b "X")))
99)
;; assert/1 = assertz/1
(define pl-dy-db4 (pl-mk-db))
(pl-solve-once!
pl-dy-db4
(pl-dy-goal "assert(g(7))" {})
(pl-mk-trail))
(pl-dy-test!
"assert/1 alias"
(pl-solve-once! pl-dy-db4 (pl-dy-goal "g(7)" {}) (pl-mk-trail))
true)
;; retract removes a fact
(define pl-dy-db5 (pl-mk-db))
(pl-solve-once!
pl-dy-db5
(pl-dy-goal "assertz(q(1))" {})
(pl-mk-trail))
(pl-solve-once!
pl-dy-db5
(pl-dy-goal "assertz(q(2))" {})
(pl-mk-trail))
(pl-solve-once!
pl-dy-db5
(pl-dy-goal "assertz(q(3))" {})
(pl-mk-trail))
(pl-dy-test!
"before retract: 3 clauses"
(pl-solve-count! pl-dy-db5 (pl-dy-goal "q(X)" {}) (pl-mk-trail))
3)
(pl-solve-once!
pl-dy-db5
(pl-dy-goal "retract(q(2))" {})
(pl-mk-trail))
(pl-dy-test!
"after retract(q(2)): 2 clauses left"
(pl-solve-count! pl-dy-db5 (pl-dy-goal "q(X)" {}) (pl-mk-trail))
2)
(define pl-dy-env-c {})
(pl-solve-once! pl-dy-db5 (pl-dy-goal "q(X)" pl-dy-env-c) (pl-mk-trail))
(pl-dy-test!
"after retract(q(2)): first remaining is 1"
(pl-num-val (pl-walk-deep (dict-get pl-dy-env-c "X")))
1)
;; retract of non-existent
(pl-dy-test!
"retract(missing(0)) on empty db fails"
(pl-solve-once!
(pl-mk-db)
(pl-dy-goal "retract(missing(0))" {})
(pl-mk-trail))
false)
;; retract with unbound var matches first
(define pl-dy-db6 (pl-mk-db))
(pl-solve-once!
pl-dy-db6
(pl-dy-goal "assertz(r(11))" {})
(pl-mk-trail))
(pl-solve-once!
pl-dy-db6
(pl-dy-goal "assertz(r(22))" {})
(pl-mk-trail))
(define pl-dy-env-d {})
(pl-solve-once!
pl-dy-db6
(pl-dy-goal "retract(r(X))" pl-dy-env-d)
(pl-mk-trail))
(pl-dy-test!
"retract(r(X)) binds X to first match"
(pl-num-val (pl-walk-deep (dict-get pl-dy-env-d "X")))
11)
(define pl-dynamic-tests-run! (fn () {:failed pl-dy-test-fail :passed pl-dy-test-pass :total pl-dy-test-count :failures pl-dy-test-failures}))

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@@ -1,167 +0,0 @@
;; lib/prolog/tests/findall.sx — findall/3, bagof/3, setof/3.
(define pl-fb-test-count 0)
(define pl-fb-test-pass 0)
(define pl-fb-test-fail 0)
(define pl-fb-test-failures (list))
(define
pl-fb-test!
(fn
(name got expected)
(begin
(set! pl-fb-test-count (+ pl-fb-test-count 1))
(if
(= got expected)
(set! pl-fb-test-pass (+ pl-fb-test-pass 1))
(begin
(set! pl-fb-test-fail (+ pl-fb-test-fail 1))
(append!
pl-fb-test-failures
(str name "\n expected: " expected "\n got: " got)))))))
(define
pl-fb-term-to-sx
(fn
(t)
(cond
((pl-num? t) (pl-num-val t))
((pl-atom? t) (pl-atom-name t))
(true (list :complex)))))
(define
pl-fb-list-walked
(fn
(w)
(cond
((and (pl-atom? w) (= (pl-atom-name w) "[]")) (list))
((and (pl-compound? w) (= (pl-fun w) ".") (= (len (pl-args w)) 2))
(cons
(pl-fb-term-to-sx (first (pl-args w)))
(pl-fb-list-walked (nth (pl-args w) 1))))
(true (list :not-list)))))
(define pl-fb-list-to-sx (fn (t) (pl-fb-list-walked (pl-walk-deep t))))
(define
pl-fb-goal
(fn
(src env)
(pl-instantiate (nth (first (pl-parse (str "g :- " src "."))) 2) env)))
(define pl-fb-prog-src "member(X, [X|_]). member(X, [_|T]) :- member(X, T).")
(define pl-fb-db (pl-mk-db))
(pl-db-load! pl-fb-db (pl-parse pl-fb-prog-src))
;; ── findall ──
(define pl-fb-env-1 {})
(pl-solve-once!
pl-fb-db
(pl-fb-goal "findall(X, member(X, [a, b, c]), L)" pl-fb-env-1)
(pl-mk-trail))
(pl-fb-test!
"findall member [a, b, c]"
(pl-fb-list-to-sx (dict-get pl-fb-env-1 "L"))
(list "a" "b" "c"))
(define pl-fb-env-2 {})
(pl-solve-once!
pl-fb-db
(pl-fb-goal "findall(X, (member(X, [1, 2, 3]), X >= 2), L)" pl-fb-env-2)
(pl-mk-trail))
(pl-fb-test!
"findall with comparison filter"
(pl-fb-list-to-sx (dict-get pl-fb-env-2 "L"))
(list 2 3))
(define pl-fb-env-3 {})
(pl-solve-once!
pl-fb-db
(pl-fb-goal "findall(X, fail, L)" pl-fb-env-3)
(pl-mk-trail))
(pl-fb-test!
"findall on fail succeeds with empty list"
(pl-fb-list-to-sx (dict-get pl-fb-env-3 "L"))
(list))
(pl-fb-test!
"findall(X, fail, L) the goal succeeds"
(pl-solve-once!
pl-fb-db
(pl-fb-goal "findall(X, fail, L)" {})
(pl-mk-trail))
true)
(define pl-fb-env-4 {})
(pl-solve-once!
pl-fb-db
(pl-fb-goal
"findall(p(X, Y), (member(X, [1, 2]), member(Y, [a, b])), L)"
pl-fb-env-4)
(pl-mk-trail))
(pl-fb-test!
"findall over compound template — count = 4"
(len (pl-fb-list-to-sx (dict-get pl-fb-env-4 "L")))
4)
;; ── bagof ──
(pl-fb-test!
"bagof succeeds when results exist"
(pl-solve-once!
pl-fb-db
(pl-fb-goal "bagof(X, member(X, [1, 2, 3]), L)" {})
(pl-mk-trail))
true)
(pl-fb-test!
"bagof fails on empty"
(pl-solve-once!
pl-fb-db
(pl-fb-goal "bagof(X, fail, L)" {})
(pl-mk-trail))
false)
(define pl-fb-env-5 {})
(pl-solve-once!
pl-fb-db
(pl-fb-goal "bagof(X, member(X, [c, a, b]), L)" pl-fb-env-5)
(pl-mk-trail))
(pl-fb-test!
"bagof preserves order"
(pl-fb-list-to-sx (dict-get pl-fb-env-5 "L"))
(list "c" "a" "b"))
;; ── setof ──
(define pl-fb-env-6 {})
(pl-solve-once!
pl-fb-db
(pl-fb-goal "setof(X, member(X, [c, a, b, a, c]), L)" pl-fb-env-6)
(pl-mk-trail))
(pl-fb-test!
"setof sorts + dedupes atoms"
(pl-fb-list-to-sx (dict-get pl-fb-env-6 "L"))
(list "a" "b" "c"))
(pl-fb-test!
"setof fails on empty"
(pl-solve-once!
pl-fb-db
(pl-fb-goal "setof(X, fail, L)" {})
(pl-mk-trail))
false)
(define pl-fb-env-7 {})
(pl-solve-once!
pl-fb-db
(pl-fb-goal "setof(X, member(X, [3, 1, 2, 1, 3]), L)" pl-fb-env-7)
(pl-mk-trail))
(pl-fb-test!
"setof sorts + dedupes nums"
(pl-fb-list-to-sx (dict-get pl-fb-env-7 "L"))
(list 1 2 3))
(define pl-findall-tests-run! (fn () {:failed pl-fb-test-fail :passed pl-fb-test-pass :total pl-fb-test-count :failures pl-fb-test-failures}))

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@@ -1,165 +0,0 @@
;; lib/prolog/tests/hs_bridge.sx — tests for Prolog↔Hyperscript bridge
;;
;; Verifies pl-hs-query, pl-hs-predicate/N, and pl-hs-install.
;; Also demonstrates the end-to-end DSL pattern:
;; (define allowed (pl-hs-predicate/2 db "allowed"))
;; → (allowed "alice" "edit") is what Hyperscript compiles
;; `when allowed(alice, edit)` to.
(define pl-hsb-test-count 0)
(define pl-hsb-test-pass 0)
(define pl-hsb-test-fail 0)
(define pl-hsb-test-failures (list))
(define
pl-hsb-test!
(fn
(name got expected)
(begin
(set! pl-hsb-test-count (+ pl-hsb-test-count 1))
(if
(= got expected)
(set! pl-hsb-test-pass (+ pl-hsb-test-pass 1))
(begin
(set! pl-hsb-test-fail (+ pl-hsb-test-fail 1))
(append!
pl-hsb-test-failures
(str name "\n expected: " expected "\n got: " got)))))))
;; ── shared KB ──
(define
pl-hsb-perm-src
"role(alice, admin). role(bob, editor). role(charlie, viewer). permission(admin, read). permission(admin, write). permission(admin, delete). permission(editor, read). permission(editor, write). permission(viewer, read). allowed(U, A) :- role(U, R), permission(R, A).")
(define pl-hsb-db (pl-load pl-hsb-perm-src))
;; ── pl-hs-query ──
(pl-hsb-test!
"pl-hs-query: ground fact succeeds"
(pl-hs-query pl-hsb-db "role(alice, admin)")
true)
(pl-hsb-test!
"pl-hs-query: absent fact fails"
(pl-hs-query pl-hsb-db "role(alice, viewer)")
false)
(pl-hsb-test!
"pl-hs-query: rule derivation succeeds"
(pl-hs-query pl-hsb-db "allowed(alice, delete)")
true)
(pl-hsb-test!
"pl-hs-query: rule derivation fails"
(pl-hs-query pl-hsb-db "allowed(charlie, delete)")
false)
(pl-hsb-test!
"pl-hs-query: arithmetic goal"
(pl-hs-query pl-hsb-db "X is 3 + 4, X = 7")
true)
;; ── pl-hs-predicate/2 ──
(define pl-hsb-allowed (pl-hs-predicate/2 pl-hsb-db "allowed"))
(pl-hsb-test!
"predicate/2: alice can read"
(pl-hsb-allowed "alice" "read")
true)
(pl-hsb-test!
"predicate/2: alice can delete"
(pl-hsb-allowed "alice" "delete")
true)
(pl-hsb-test!
"predicate/2: charlie cannot write"
(pl-hsb-allowed "charlie" "write")
false)
(pl-hsb-test!
"predicate/2: bob can write"
(pl-hsb-allowed "bob" "write")
true)
(pl-hsb-test!
"predicate/2: unknown user fails"
(pl-hsb-allowed "eve" "read")
false)
;; ── DSL simulation ──
;; Hyperscript compiles `when allowed(user, action) then …`
;; to `(allowed user action)` — a direct SX function call.
;; Here we verify that pattern works end-to-end.
(define pl-hsb-user "alice")
(define pl-hsb-action "write")
(pl-hsb-test!
"DSL simulation: (allowed user action) true path"
(pl-hsb-allowed pl-hsb-user pl-hsb-action)
true)
(define pl-hsb-user2 "charlie")
(pl-hsb-test!
"DSL simulation: (allowed user action) false path"
(pl-hsb-allowed pl-hsb-user2 pl-hsb-action)
false)
;; ── pl-hs-predicate/1 ──
(define pl-hsb-viewer-src "color(red). color(green). color(blue).")
(define pl-hsb-color-db (pl-load pl-hsb-viewer-src))
(define pl-hsb-color? (pl-hs-predicate/1 pl-hsb-color-db "color"))
(pl-hsb-test! "predicate/1: color(red) succeeds" (pl-hsb-color? "red") true)
(pl-hsb-test!
"predicate/1: color(purple) fails"
(pl-hsb-color? "purple")
false)
;; ── pl-hs-predicate/3 ──
(define pl-hsb-3ary-src "between_vals(X, Lo, Hi) :- X >= Lo, X =< Hi.")
(define pl-hsb-3ary-db (pl-load pl-hsb-3ary-src))
(define pl-hsb-in-range? (pl-hs-predicate/3 pl-hsb-3ary-db "between_vals"))
(pl-hsb-test!
"predicate/3: 5 in range [1,10]"
(pl-hsb-in-range? "5" "1" "10")
true)
(pl-hsb-test!
"predicate/3: 15 not in range [1,10]"
(pl-hsb-in-range? "15" "1" "10")
false)
;; ── pl-hs-install ──
(define
pl-hsb-installed
(pl-hs-install
pl-hsb-db
(list (list "allowed" 2) (list "role" 2) (list "permission" 2))))
(pl-hsb-test!
"pl-hs-install: returns dict with allowed key"
(not (nil? (dict-get pl-hsb-installed "allowed")))
true)
(pl-hsb-test!
"pl-hs-install: installed allowed fn works"
((dict-get pl-hsb-installed "allowed") "alice" "delete")
true)
(pl-hsb-test!
"pl-hs-install: installed role fn works"
((dict-get pl-hsb-installed "role") "bob" "editor")
true)
(define pl-hs-bridge-tests-run! (fn () {:failed pl-hsb-test-fail :passed pl-hsb-test-pass :total pl-hsb-test-count :failures pl-hsb-test-failures}))

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@@ -1,172 +0,0 @@
;; lib/prolog/tests/integration.sx — end-to-end integration tests via pl-query-* API
;;
;; Tests the full source→parse→load→solve pipeline with real programs.
;; Covers: permission system, graph reachability, quicksort, fibonacci, dynamic KB.
(define pl-int-test-count 0)
(define pl-int-test-pass 0)
(define pl-int-test-fail 0)
(define pl-int-test-failures (list))
(define
pl-int-test!
(fn
(name got expected)
(begin
(set! pl-int-test-count (+ pl-int-test-count 1))
(if
(= got expected)
(set! pl-int-test-pass (+ pl-int-test-pass 1))
(begin
(set! pl-int-test-fail (+ pl-int-test-fail 1))
(append!
pl-int-test-failures
(str name "\n expected: " expected "\n got: " got)))))))
;; ── Permission system ──
;; role/2 + permission/2 facts, allowed/2 rule
(define
pl-int-perm-src
"role(alice, admin). role(bob, editor). role(charlie, viewer). permission(admin, read). permission(admin, write). permission(admin, delete). permission(editor, read). permission(editor, write). permission(viewer, read). allowed(U, A) :- role(U, R), permission(R, A).")
(define pl-int-perm-db (pl-load pl-int-perm-src))
(pl-int-test!
"alice can read"
(len (pl-query-all pl-int-perm-db "allowed(alice, read)"))
1)
(pl-int-test!
"alice can delete"
(len (pl-query-all pl-int-perm-db "allowed(alice, delete)"))
1)
(pl-int-test!
"charlie cannot write"
(len (pl-query-all pl-int-perm-db "allowed(charlie, write)"))
0)
(pl-int-test!
"alice has 3 permissions"
(len (pl-query-all pl-int-perm-db "allowed(alice, A)"))
3)
(pl-int-test!
"only one user can delete"
(len (pl-query-all pl-int-perm-db "allowed(U, delete)"))
1)
(pl-int-test!
"the deleter is alice"
(dict-get (first (pl-query-all pl-int-perm-db "allowed(U, delete)")) "U")
"alice")
;; ── Graph reachability ──
;; Directed edges; path/2 transitive closure via two clauses
(define
pl-int-graph-src
"edge(a, b). edge(b, c). edge(c, d). edge(b, d). path(X, Y) :- edge(X, Y). path(X, Y) :- edge(X, Z), path(Z, Y).")
(define pl-int-graph-db (pl-load pl-int-graph-src))
(pl-int-test!
"direct edge a→b is a path"
(len (pl-query-all pl-int-graph-db "path(a, b)"))
1)
(pl-int-test!
"transitive path a→c"
(len (pl-query-all pl-int-graph-db "path(a, c)"))
1)
(pl-int-test!
"no path d→a (no back-edges)"
(len (pl-query-all pl-int-graph-db "path(d, a)"))
0)
(pl-int-test!
"4 derivations from a (b,c,d via two routes to d)"
(len (pl-query-all pl-int-graph-db "path(a, Y)"))
4)
;; ── Quicksort ──
;; Partition-and-recurse; uses its own append/3 to avoid DB pollution
(define
pl-int-qs-src
"partition(_, [], [], []). partition(Piv, [H|T], [H|Less], Greater) :- H =< Piv, !, partition(Piv, T, Less, Greater). partition(Piv, [H|T], Less, [H|Greater]) :- partition(Piv, T, Less, Greater). append([], L, L). append([H|T], L, [H|R]) :- append(T, L, R). quicksort([], []). quicksort([H|T], Sorted) :- partition(H, T, Less, Greater), quicksort(Less, SL), quicksort(Greater, SG), append(SL, [H|SG], Sorted).")
(define pl-int-qs-db (pl-load pl-int-qs-src))
(pl-int-test!
"quicksort([]) = [] (ground check)"
(len (pl-query-all pl-int-qs-db "quicksort([], [])"))
1)
(pl-int-test!
"quicksort([3,1,2]) = [1,2,3] (ground check)"
(len (pl-query-all pl-int-qs-db "quicksort([3,1,2], [1,2,3])"))
1)
(pl-int-test!
"quicksort([5,3,1,4,2]) = [1,2,3,4,5] (ground check)"
(len (pl-query-all pl-int-qs-db "quicksort([5,3,1,4,2], [1,2,3,4,5])"))
1)
(pl-int-test!
"quicksort([3,1,2], [3,1,2]) fails — unsorted order rejected"
(len (pl-query-all pl-int-qs-db "quicksort([3,1,2], [3,1,2])"))
0)
;; ── Fibonacci ──
;; Naive recursive; ground checks avoid list-format uncertainty
(define
pl-int-fib-src
"fib(0, 0). fib(1, 1). fib(N, F) :- N > 1, N1 is N - 1, N2 is N - 2, fib(N1, F1), fib(N2, F2), F is F1 + F2.")
(define pl-int-fib-db (pl-load pl-int-fib-src))
(pl-int-test!
"fib(0, 0) succeeds"
(len (pl-query-all pl-int-fib-db "fib(0, 0)"))
1)
(pl-int-test!
"fib(5, 5) succeeds"
(len (pl-query-all pl-int-fib-db "fib(5, 5)"))
1)
(pl-int-test!
"fib(7, 13) succeeds"
(len (pl-query-all pl-int-fib-db "fib(7, 13)"))
1)
;; ── Dynamic knowledge base ──
;; Assert and retract facts; the DB dict is mutable so mutations persist
(define pl-int-dyn-src "color(red). color(green). color(blue).")
(define pl-int-dyn-db (pl-load pl-int-dyn-src))
(pl-int-test!
"initial KB: 3 colors"
(len (pl-query-all pl-int-dyn-db "color(X)"))
3)
(pl-int-test!
"after assert(color(yellow)): 4 colors"
(begin
(pl-query-all pl-int-dyn-db "assert(color(yellow))")
(len (pl-query-all pl-int-dyn-db "color(X)")))
4)
(pl-int-test!
"after retract(color(red)): back to 3 colors"
(begin
(pl-query-all pl-int-dyn-db "retract(color(red))")
(len (pl-query-all pl-int-dyn-db "color(X)")))
3)
(define pl-integration-tests-run! (fn () {:failed pl-int-test-fail :passed pl-int-test-pass :total pl-int-test-count :failures pl-int-test-failures}))

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@@ -1,326 +0,0 @@
;; lib/prolog/tests/io_predicates.sx — term_to_atom/2, term_string/2,
;; with_output_to/2, writeln/1, format/1, format/2
(define pl-io-test-count 0)
(define pl-io-test-pass 0)
(define pl-io-test-fail 0)
(define pl-io-test-failures (list))
(define
pl-io-test!
(fn
(name got expected)
(begin
(set! pl-io-test-count (+ pl-io-test-count 1))
(if
(= got expected)
(set! pl-io-test-pass (+ pl-io-test-pass 1))
(begin
(set! pl-io-test-fail (+ pl-io-test-fail 1))
(append!
pl-io-test-failures
(str name "\n expected: " expected "\n got: " got)))))))
(define
pl-io-goal
(fn
(src env)
(pl-instantiate (nth (first (pl-parse (str "g :- " src "."))) 2) env)))
(define pl-io-db (pl-mk-db))
;; helper: get output buffer after running a goal
(define
pl-io-capture!
(fn
(goal)
(do
(pl-output-clear!)
(pl-solve-once! pl-io-db goal (pl-mk-trail))
pl-output-buffer)))
;; ─── term_to_atom/2 — bound Term direction ─────────────────────────────────
(pl-io-test!
"term_to_atom(foo(a,b), A) — compound"
(let
((env {}))
(pl-solve-once!
pl-io-db
(pl-io-goal "term_to_atom(foo(a,b), A)" env)
(pl-mk-trail))
(pl-atom-name (pl-walk-deep (dict-get env "A"))))
"foo(a, b)")
(pl-io-test!
"term_to_atom(hello, A) — atom"
(let
((env {}))
(pl-solve-once!
pl-io-db
(pl-io-goal "term_to_atom(hello, A)" env)
(pl-mk-trail))
(pl-atom-name (pl-walk-deep (dict-get env "A"))))
"hello")
(pl-io-test!
"term_to_atom(42, A) — number"
(let
((env {}))
(pl-solve-once!
pl-io-db
(pl-io-goal "term_to_atom(42, A)" env)
(pl-mk-trail))
(pl-atom-name (pl-walk-deep (dict-get env "A"))))
"42")
(pl-io-test!
"term_to_atom(foo(a,b), 'foo(a, b)') — succeeds when Atom matches"
(pl-solve-once!
pl-io-db
(pl-io-goal "term_to_atom(foo(a,b), 'foo(a, b)')" {})
(pl-mk-trail))
true)
(pl-io-test!
"term_to_atom(hello, world) — fails on mismatch"
(pl-solve-once!
pl-io-db
(pl-io-goal "term_to_atom(hello, world)" {})
(pl-mk-trail))
false)
;; ─── term_to_atom/2 — parse direction (Atom bound, Term unbound) ───────────
(pl-io-test!
"term_to_atom(T, 'foo(a)') — parse direction gives compound"
(let
((env {}))
(pl-solve-once!
pl-io-db
(pl-io-goal "term_to_atom(T, 'foo(a)')" env)
(pl-mk-trail))
(let
((t (pl-walk-deep (dict-get env "T"))))
(and (pl-compound? t) (= (pl-fun t) "foo"))))
true)
(pl-io-test!
"term_to_atom(T, hello) — parse direction gives atom"
(let
((env {}))
(pl-solve-once!
pl-io-db
(pl-io-goal "term_to_atom(T, hello)" env)
(pl-mk-trail))
(let
((t (pl-walk-deep (dict-get env "T"))))
(and (pl-atom? t) (= (pl-atom-name t) "hello"))))
true)
;; ─── term_string/2 — alias ──────────────────────────────────────────────────
(pl-io-test!
"term_string(bar(x), A) — same as term_to_atom"
(let
((env {}))
(pl-solve-once!
pl-io-db
(pl-io-goal "term_string(bar(x), A)" env)
(pl-mk-trail))
(pl-atom-name (pl-walk-deep (dict-get env "A"))))
"bar(x)")
(pl-io-test!
"term_string(42, A) — number to string"
(let
((env {}))
(pl-solve-once!
pl-io-db
(pl-io-goal "term_string(42, A)" env)
(pl-mk-trail))
(pl-atom-name (pl-walk-deep (dict-get env "A"))))
"42")
;; ─── writeln/1 ─────────────────────────────────────────────────────────────
(pl-io-test!
"writeln(hello) writes 'hello\n'"
(let
((env {}))
(pl-solve-once!
pl-io-db
(pl-io-goal "with_output_to(atom(X), writeln(hello))" env)
(pl-mk-trail))
(pl-atom-name (pl-walk-deep (dict-get env "X"))))
"hello
")
(pl-io-test!
"writeln(42) writes '42\n'"
(let
((env {}))
(pl-solve-once!
pl-io-db
(pl-io-goal "with_output_to(atom(X), writeln(42))" env)
(pl-mk-trail))
(pl-atom-name (pl-walk-deep (dict-get env "X"))))
"42
")
;; ─── with_output_to/2 ──────────────────────────────────────────────────────
(pl-io-test!
"with_output_to(atom(X), write(foo)) — captures write output"
(let
((env {}))
(pl-solve-once!
pl-io-db
(pl-io-goal "with_output_to(atom(X), write(foo))" env)
(pl-mk-trail))
(pl-atom-name (pl-walk-deep (dict-get env "X"))))
"foo")
(pl-io-test!
"with_output_to(atom(X), (write(a), write(b))) — concat output"
(let
((env {}))
(pl-solve-once!
pl-io-db
(pl-io-goal "with_output_to(atom(X), (write(a), write(b)))" env)
(pl-mk-trail))
(pl-atom-name (pl-walk-deep (dict-get env "X"))))
"ab")
(pl-io-test!
"with_output_to(atom(X), nl) — captures newline"
(let
((env {}))
(pl-solve-once!
pl-io-db
(pl-io-goal "with_output_to(atom(X), nl)" env)
(pl-mk-trail))
(pl-atom-name (pl-walk-deep (dict-get env "X"))))
"
")
(pl-io-test!
"with_output_to(atom(X), true) — captures empty string"
(let
((env {}))
(pl-solve-once!
pl-io-db
(pl-io-goal "with_output_to(atom(X), true)" env)
(pl-mk-trail))
(pl-atom-name (pl-walk-deep (dict-get env "X"))))
"")
(pl-io-test!
"with_output_to(string(X), write(hello)) — string sink works"
(let
((env {}))
(pl-solve-once!
pl-io-db
(pl-io-goal "with_output_to(string(X), write(hello))" env)
(pl-mk-trail))
(pl-atom-name (pl-walk-deep (dict-get env "X"))))
"hello")
(pl-io-test!
"with_output_to(atom(X), fail) — fails when goal fails"
(pl-solve-once!
pl-io-db
(pl-io-goal "with_output_to(atom(X), fail)" {})
(pl-mk-trail))
false)
;; ─── format/1 ──────────────────────────────────────────────────────────────
(pl-io-test!
"format('hello~n') — tilde-n becomes newline"
(let
((env {}))
(pl-solve-once!
pl-io-db
(pl-io-goal "with_output_to(atom(X), format('hello~n'))" env)
(pl-mk-trail))
(pl-atom-name (pl-walk-deep (dict-get env "X"))))
"hello
")
(pl-io-test!
"format('~~') — double tilde becomes single tilde"
(let
((env {}))
(pl-solve-once!
pl-io-db
(pl-io-goal "with_output_to(atom(X), format('~~'))" env)
(pl-mk-trail))
(pl-atom-name (pl-walk-deep (dict-get env "X"))))
"~")
(pl-io-test!
"format('abc') — plain text passes through"
(let
((env {}))
(pl-solve-once!
pl-io-db
(pl-io-goal "with_output_to(atom(X), format(abc))" env)
(pl-mk-trail))
(pl-atom-name (pl-walk-deep (dict-get env "X"))))
"abc")
;; ─── format/2 ──────────────────────────────────────────────────────────────
(pl-io-test!
"format('~w+~w', [1,2]) — two ~w args"
(let
((env {}))
(pl-solve-once!
pl-io-db
(pl-io-goal "with_output_to(atom(X), format('~w+~w', [1,2]))" env)
(pl-mk-trail))
(pl-atom-name (pl-walk-deep (dict-get env "X"))))
"1+2")
(pl-io-test!
"format('hello ~a!', [world]) — ~a with atom arg"
(let
((env {}))
(pl-solve-once!
pl-io-db
(pl-io-goal "with_output_to(atom(X), format('hello ~a!', [world]))" env)
(pl-mk-trail))
(pl-atom-name (pl-walk-deep (dict-get env "X"))))
"hello world!")
(pl-io-test!
"format('n=~d', [42]) — ~d with integer arg"
(let
((env {}))
(pl-solve-once!
pl-io-db
(pl-io-goal "with_output_to(atom(X), format('n=~d', [42]))" env)
(pl-mk-trail))
(pl-atom-name (pl-walk-deep (dict-get env "X"))))
"n=42")
(pl-io-test!
"format('~w', [foo(a)]) — ~w with compound"
(let
((env {}))
(pl-solve-once!
pl-io-db
(pl-io-goal "with_output_to(atom(X), format('~w', [foo(a)]))" env)
(pl-mk-trail))
(pl-atom-name (pl-walk-deep (dict-get env "X"))))
"foo(a)")
(define
pl-io-predicates-tests-run!
(fn
()
{:failed pl-io-test-fail
:passed pl-io-test-pass
:total pl-io-test-count
:failures pl-io-test-failures}))

View File

@@ -1,320 +0,0 @@
;; lib/prolog/tests/iso_predicates.sx — succ/2, plus/3, between/3, length/2, last/2, nth0/3, nth1/3, max/min arith
(define pl-ip-test-count 0)
(define pl-ip-test-pass 0)
(define pl-ip-test-fail 0)
(define pl-ip-test-failures (list))
(define
pl-ip-test!
(fn
(name got expected)
(begin
(set! pl-ip-test-count (+ pl-ip-test-count 1))
(if
(= got expected)
(set! pl-ip-test-pass (+ pl-ip-test-pass 1))
(begin
(set! pl-ip-test-fail (+ pl-ip-test-fail 1))
(append!
pl-ip-test-failures
(str name "\n expected: " expected "\n got: " got)))))))
(define
pl-ip-goal
(fn
(src env)
(pl-instantiate (nth (first (pl-parse (str "g :- " src "."))) 2) env)))
(define pl-ip-db (pl-mk-db))
;; ── succ/2 ──
(define pl-ip-env-s1 {})
(pl-solve-once!
pl-ip-db
(pl-ip-goal "succ(3, X)" pl-ip-env-s1)
(pl-mk-trail))
(pl-ip-test!
"succ(3, X) → X=4"
(pl-num-val (pl-walk-deep (dict-get pl-ip-env-s1 "X")))
4)
(define pl-ip-env-s2 {})
(pl-solve-once!
pl-ip-db
(pl-ip-goal "succ(0, X)" pl-ip-env-s2)
(pl-mk-trail))
(pl-ip-test!
"succ(0, X) → X=1"
(pl-num-val (pl-walk-deep (dict-get pl-ip-env-s2 "X")))
1)
(define pl-ip-env-s3 {})
(pl-solve-once!
pl-ip-db
(pl-ip-goal "succ(X, 5)" pl-ip-env-s3)
(pl-mk-trail))
(pl-ip-test!
"succ(X, 5) → X=4"
(pl-num-val (pl-walk-deep (dict-get pl-ip-env-s3 "X")))
4)
(pl-ip-test!
"succ(X, 0) fails"
(pl-solve-once!
pl-ip-db
(pl-ip-goal "succ(X, 0)" {})
(pl-mk-trail))
false)
;; ── plus/3 ──
(define pl-ip-env-p1 {})
(pl-solve-once!
pl-ip-db
(pl-ip-goal "plus(2, 3, X)" pl-ip-env-p1)
(pl-mk-trail))
(pl-ip-test!
"plus(2, 3, X) → X=5"
(pl-num-val (pl-walk-deep (dict-get pl-ip-env-p1 "X")))
5)
(define pl-ip-env-p2 {})
(pl-solve-once!
pl-ip-db
(pl-ip-goal "plus(2, X, 7)" pl-ip-env-p2)
(pl-mk-trail))
(pl-ip-test!
"plus(2, X, 7) → X=5"
(pl-num-val (pl-walk-deep (dict-get pl-ip-env-p2 "X")))
5)
(define pl-ip-env-p3 {})
(pl-solve-once!
pl-ip-db
(pl-ip-goal "plus(X, 3, 7)" pl-ip-env-p3)
(pl-mk-trail))
(pl-ip-test!
"plus(X, 3, 7) → X=4"
(pl-num-val (pl-walk-deep (dict-get pl-ip-env-p3 "X")))
4)
(pl-ip-test!
"plus(0, 0, 0) succeeds"
(pl-solve-once!
pl-ip-db
(pl-ip-goal "plus(0, 0, 0)" {})
(pl-mk-trail))
true)
;; ── between/3 ──
(pl-ip-test!
"between(1, 3, X): 3 solutions"
(pl-solve-count!
pl-ip-db
(pl-ip-goal "between(1, 3, X)" {})
(pl-mk-trail))
3)
(pl-ip-test!
"between(1, 3, 2) succeeds"
(pl-solve-once!
pl-ip-db
(pl-ip-goal "between(1, 3, 2)" {})
(pl-mk-trail))
true)
(pl-ip-test!
"between(1, 3, 5) fails"
(pl-solve-once!
pl-ip-db
(pl-ip-goal "between(1, 3, 5)" {})
(pl-mk-trail))
false)
(pl-ip-test!
"between(5, 3, X): 0 solutions (empty range)"
(pl-solve-count!
pl-ip-db
(pl-ip-goal "between(5, 3, X)" {})
(pl-mk-trail))
0)
(define pl-ip-env-b1 {})
(pl-solve-once!
pl-ip-db
(pl-ip-goal "between(1, 5, X)" pl-ip-env-b1)
(pl-mk-trail))
(pl-ip-test!
"between(1, 5, X): first solution X=1"
(pl-num-val (pl-walk-deep (dict-get pl-ip-env-b1 "X")))
1)
(pl-ip-test!
"between + condition: between(1,5,X), X > 3 → 2 solutions"
(pl-solve-count!
pl-ip-db
(pl-ip-goal "between(1, 5, X), X > 3" {})
(pl-mk-trail))
2)
;; ── length/2 ──
(define pl-ip-env-l1 {})
(pl-solve-once!
pl-ip-db
(pl-ip-goal "length([1,2,3], N)" pl-ip-env-l1)
(pl-mk-trail))
(pl-ip-test!
"length([1,2,3], N) → N=3"
(pl-num-val (pl-walk-deep (dict-get pl-ip-env-l1 "N")))
3)
(define pl-ip-env-l2 {})
(pl-solve-once!
pl-ip-db
(pl-ip-goal "length([], N)" pl-ip-env-l2)
(pl-mk-trail))
(pl-ip-test!
"length([], N) → N=0"
(pl-num-val (pl-walk-deep (dict-get pl-ip-env-l2 "N")))
0)
(pl-ip-test!
"length([a,b], 2) check succeeds"
(pl-solve-once!
pl-ip-db
(pl-ip-goal "length([a,b], 2)" {})
(pl-mk-trail))
true)
(define pl-ip-env-l3 {})
(pl-solve-once!
pl-ip-db
(pl-ip-goal "length(L, 3)" pl-ip-env-l3)
(pl-mk-trail))
(pl-ip-test!
"length(L, 3): L is a list of length 3"
(pl-solve-once!
pl-ip-db
(pl-ip-goal "length(L, 3), is_list(L)" pl-ip-env-l3)
(pl-mk-trail))
true)
;; ── last/2 ──
(define pl-ip-env-la1 {})
(pl-solve-once!
pl-ip-db
(pl-ip-goal "last([1,2,3], X)" pl-ip-env-la1)
(pl-mk-trail))
(pl-ip-test!
"last([1,2,3], X) → X=3"
(pl-num-val (pl-walk-deep (dict-get pl-ip-env-la1 "X")))
3)
(define pl-ip-env-la2 {})
(pl-solve-once!
pl-ip-db
(pl-ip-goal "last([a], X)" pl-ip-env-la2)
(pl-mk-trail))
(pl-ip-test!
"last([a], X) → X=a"
(pl-atom-name (pl-walk-deep (dict-get pl-ip-env-la2 "X")))
"a")
(pl-ip-test!
"last([], X) fails"
(pl-solve-once!
pl-ip-db
(pl-ip-goal "last([], X)" {})
(pl-mk-trail))
false)
;; ── nth0/3 ──
(define pl-ip-env-n0 {})
(pl-solve-once!
pl-ip-db
(pl-ip-goal "nth0(0, [a,b,c], X)" pl-ip-env-n0)
(pl-mk-trail))
(pl-ip-test!
"nth0(0, [a,b,c], X) → X=a"
(pl-atom-name (pl-walk-deep (dict-get pl-ip-env-n0 "X")))
"a")
(define pl-ip-env-n1 {})
(pl-solve-once!
pl-ip-db
(pl-ip-goal "nth0(2, [a,b,c], X)" pl-ip-env-n1)
(pl-mk-trail))
(pl-ip-test!
"nth0(2, [a,b,c], X) → X=c"
(pl-atom-name (pl-walk-deep (dict-get pl-ip-env-n1 "X")))
"c")
(pl-ip-test!
"nth0(5, [a,b,c], X) fails"
(pl-solve-once!
pl-ip-db
(pl-ip-goal "nth0(5, [a,b,c], X)" {})
(pl-mk-trail))
false)
;; ── nth1/3 ──
(define pl-ip-env-n1a {})
(pl-solve-once!
pl-ip-db
(pl-ip-goal "nth1(1, [a,b,c], X)" pl-ip-env-n1a)
(pl-mk-trail))
(pl-ip-test!
"nth1(1, [a,b,c], X) → X=a"
(pl-atom-name (pl-walk-deep (dict-get pl-ip-env-n1a "X")))
"a")
(define pl-ip-env-n1b {})
(pl-solve-once!
pl-ip-db
(pl-ip-goal "nth1(3, [a,b,c], X)" pl-ip-env-n1b)
(pl-mk-trail))
(pl-ip-test!
"nth1(3, [a,b,c], X) → X=c"
(pl-atom-name (pl-walk-deep (dict-get pl-ip-env-n1b "X")))
"c")
;; ── max/min in arithmetic ──
(define pl-ip-env-m1 {})
(pl-solve-once!
pl-ip-db
(pl-ip-goal "X is max(3, 5)" pl-ip-env-m1)
(pl-mk-trail))
(pl-ip-test!
"X is max(3, 5) → X=5"
(pl-num-val (pl-walk-deep (dict-get pl-ip-env-m1 "X")))
5)
(define pl-ip-env-m2 {})
(pl-solve-once!
pl-ip-db
(pl-ip-goal "X is min(3, 5)" pl-ip-env-m2)
(pl-mk-trail))
(pl-ip-test!
"X is min(3, 5) → X=3"
(pl-num-val (pl-walk-deep (dict-get pl-ip-env-m2 "X")))
3)
(define pl-ip-env-m3 {})
(pl-solve-once!
pl-ip-db
(pl-ip-goal "X is max(7, 2) + min(1, 4)" pl-ip-env-m3)
(pl-mk-trail))
(pl-ip-test!
"X is max(7,2) + min(1,4) → X=8"
(pl-num-val (pl-walk-deep (dict-get pl-ip-env-m3 "X")))
8)
(define pl-iso-predicates-tests-run! (fn () {:failed pl-ip-test-fail :passed pl-ip-test-pass :total pl-ip-test-count :failures pl-ip-test-failures}))

View File

@@ -1,335 +0,0 @@
;; lib/prolog/tests/list_predicates.sx — ==/2, \==/2, flatten/2, numlist/3,
;; atomic_list_concat/2,3, sum_list/2, max_list/2, min_list/2, delete/3
(define pl-lp-test-count 0)
(define pl-lp-test-pass 0)
(define pl-lp-test-fail 0)
(define pl-lp-test-failures (list))
(define
pl-lp-test!
(fn
(name got expected)
(begin
(set! pl-lp-test-count (+ pl-lp-test-count 1))
(if
(= got expected)
(set! pl-lp-test-pass (+ pl-lp-test-pass 1))
(begin
(set! pl-lp-test-fail (+ pl-lp-test-fail 1))
(append!
pl-lp-test-failures
(str name "\n expected: " expected "\n got: " got)))))))
(define
pl-lp-goal
(fn
(src env)
(pl-instantiate (nth (first (pl-parse (str "g :- " src "."))) 2) env)))
(define pl-lp-db (pl-mk-db))
;; ── ==/2 ───────────────────────────────────────────────────────────
(pl-lp-test!
"==(a, a) succeeds"
(pl-solve-once! pl-lp-db (pl-lp-goal "==(a, a)" {}) (pl-mk-trail))
true)
(pl-lp-test!
"==(a, b) fails"
(pl-solve-once! pl-lp-db (pl-lp-goal "==(a, b)" {}) (pl-mk-trail))
false)
(pl-lp-test!
"==(1, 1) succeeds"
(pl-solve-once! pl-lp-db (pl-lp-goal "==(1, 1)" {}) (pl-mk-trail))
true)
(pl-lp-test!
"==(1, 2) fails"
(pl-solve-once! pl-lp-db (pl-lp-goal "==(1, 2)" {}) (pl-mk-trail))
false)
(pl-lp-test!
"==(f(a,b), f(a,b)) succeeds"
(pl-solve-once!
pl-lp-db
(pl-lp-goal "==(f(a,b), f(a,b))" {})
(pl-mk-trail))
true)
(pl-lp-test!
"==(f(a,b), f(a,c)) fails"
(pl-solve-once!
pl-lp-db
(pl-lp-goal "==(f(a,b), f(a,c))" {})
(pl-mk-trail))
false)
;; unbound var vs atom: fails (different tags)
(pl-lp-test!
"==(X, a) fails (unbound var vs atom)"
(pl-solve-once! pl-lp-db (pl-lp-goal "==(X, a)" {}) (pl-mk-trail))
false)
;; two unbound vars with SAME name in same env share the same runtime var
(define pl-lp-env-same-var {})
(pl-lp-goal "==(X, X)" pl-lp-env-same-var)
(pl-lp-test!
"==(X, X) succeeds (same runtime var)"
(pl-solve-once!
pl-lp-db
(pl-instantiate
(nth (first (pl-parse "g :- ==(X, X).")) 2)
pl-lp-env-same-var)
(pl-mk-trail))
true)
;; ── \==/2 ──────────────────────────────────────────────────────────
(pl-lp-test!
"\\==(a, b) succeeds"
(pl-solve-once! pl-lp-db (pl-lp-goal "\\==(a, b)" {}) (pl-mk-trail))
true)
(pl-lp-test!
"\\==(a, a) fails"
(pl-solve-once! pl-lp-db (pl-lp-goal "\\==(a, a)" {}) (pl-mk-trail))
false)
(pl-lp-test!
"\\==(X, a) succeeds (unbound var differs from atom)"
(pl-solve-once! pl-lp-db (pl-lp-goal "\\==(X, a)" {}) (pl-mk-trail))
true)
(pl-lp-test!
"\\==(1, 2) succeeds"
(pl-solve-once! pl-lp-db (pl-lp-goal "\\==(1, 2)" {}) (pl-mk-trail))
true)
;; ── flatten/2 ──────────────────────────────────────────────────────
(define pl-lp-env-fl1 {})
(pl-solve-once!
pl-lp-db
(pl-lp-goal "flatten([], F)" pl-lp-env-fl1)
(pl-mk-trail))
(pl-lp-test!
"flatten([], []) -> empty"
(pl-format-term (pl-walk-deep (dict-get pl-lp-env-fl1 "F")))
"[]")
(define pl-lp-env-fl2 {})
(pl-solve-once!
pl-lp-db
(pl-lp-goal "flatten([1,2,3], F)" pl-lp-env-fl2)
(pl-mk-trail))
(pl-lp-test!
"flatten([1,2,3], F) -> [1,2,3]"
(pl-format-term (pl-walk-deep (dict-get pl-lp-env-fl2 "F")))
".(1, .(2, .(3, [])))")
(define pl-lp-env-fl3 {})
(pl-solve-once!
pl-lp-db
(pl-lp-goal "flatten([1,[2,[3]],4], F)" pl-lp-env-fl3)
(pl-mk-trail))
(pl-lp-test!
"flatten([1,[2,[3]],4], F) -> [1,2,3,4]"
(pl-format-term (pl-walk-deep (dict-get pl-lp-env-fl3 "F")))
".(1, .(2, .(3, .(4, []))))")
(define pl-lp-env-fl4 {})
(pl-solve-once!
pl-lp-db
(pl-lp-goal "flatten([[a,b],[c]], F)" pl-lp-env-fl4)
(pl-mk-trail))
(pl-lp-test!
"flatten([[a,b],[c]], F) -> [a,b,c]"
(pl-format-term (pl-walk-deep (dict-get pl-lp-env-fl4 "F")))
".(a, .(b, .(c, [])))")
;; ── numlist/3 ──────────────────────────────────────────────────────
(define pl-lp-env-nl1 {})
(pl-solve-once!
pl-lp-db
(pl-lp-goal "numlist(1, 5, L)" pl-lp-env-nl1)
(pl-mk-trail))
(pl-lp-test!
"numlist(1,5,L) -> [1,2,3,4,5]"
(pl-format-term (pl-walk-deep (dict-get pl-lp-env-nl1 "L")))
".(1, .(2, .(3, .(4, .(5, [])))))")
(define pl-lp-env-nl2 {})
(pl-solve-once!
pl-lp-db
(pl-lp-goal "numlist(3, 3, L)" pl-lp-env-nl2)
(pl-mk-trail))
(pl-lp-test!
"numlist(3,3,L) -> [3]"
(pl-format-term (pl-walk-deep (dict-get pl-lp-env-nl2 "L")))
".(3, [])")
(pl-lp-test!
"numlist(5, 3, L) fails (Low > High)"
(pl-solve-once!
pl-lp-db
(pl-lp-goal "numlist(5, 3, L)" {})
(pl-mk-trail))
false)
;; ── atomic_list_concat/2 ───────────────────────────────────────────
(define pl-lp-env-alc1 {})
(pl-solve-once!
pl-lp-db
(pl-lp-goal "atomic_list_concat([a, b, c], R)" pl-lp-env-alc1)
(pl-mk-trail))
(pl-lp-test!
"atomic_list_concat([a,b,c], R) -> abc"
(pl-atom-name (pl-walk-deep (dict-get pl-lp-env-alc1 "R")))
"abc")
(define pl-lp-env-alc2 {})
(pl-solve-once!
pl-lp-db
(pl-lp-goal "atomic_list_concat([hello, world], R)" pl-lp-env-alc2)
(pl-mk-trail))
(pl-lp-test!
"atomic_list_concat([hello,world], R) -> helloworld"
(pl-atom-name (pl-walk-deep (dict-get pl-lp-env-alc2 "R")))
"helloworld")
;; ── atomic_list_concat/3 ───────────────────────────────────────────
(define pl-lp-env-alcs1 {})
(pl-solve-once!
pl-lp-db
(pl-lp-goal "atomic_list_concat([a, b, c], '-', R)" pl-lp-env-alcs1)
(pl-mk-trail))
(pl-lp-test!
"atomic_list_concat([a,b,c], '-', R) -> a-b-c"
(pl-atom-name (pl-walk-deep (dict-get pl-lp-env-alcs1 "R")))
"a-b-c")
(define pl-lp-env-alcs2 {})
(pl-solve-once!
pl-lp-db
(pl-lp-goal "atomic_list_concat([x], '-', R)" pl-lp-env-alcs2)
(pl-mk-trail))
(pl-lp-test!
"atomic_list_concat([x], '-', R) -> x (single element, no sep)"
(pl-atom-name (pl-walk-deep (dict-get pl-lp-env-alcs2 "R")))
"x")
;; ── sum_list/2 ─────────────────────────────────────────────────────
(define pl-lp-env-sl1 {})
(pl-solve-once!
pl-lp-db
(pl-lp-goal "sum_list([1,2,3], S)" pl-lp-env-sl1)
(pl-mk-trail))
(pl-lp-test!
"sum_list([1,2,3], S) -> 6"
(pl-num-val (pl-walk-deep (dict-get pl-lp-env-sl1 "S")))
6)
(define pl-lp-env-sl2 {})
(pl-solve-once!
pl-lp-db
(pl-lp-goal "sum_list([10], S)" pl-lp-env-sl2)
(pl-mk-trail))
(pl-lp-test!
"sum_list([10], S) -> 10"
(pl-num-val (pl-walk-deep (dict-get pl-lp-env-sl2 "S")))
10)
(define pl-lp-env-sl3 {})
(pl-solve-once!
pl-lp-db
(pl-lp-goal "sum_list([], S)" pl-lp-env-sl3)
(pl-mk-trail))
(pl-lp-test!
"sum_list([], S) -> 0"
(pl-num-val (pl-walk-deep (dict-get pl-lp-env-sl3 "S")))
0)
;; ── max_list/2 ─────────────────────────────────────────────────────
(define pl-lp-env-mx1 {})
(pl-solve-once!
pl-lp-db
(pl-lp-goal "max_list([3,1,4,1,5,9,2,6], M)" pl-lp-env-mx1)
(pl-mk-trail))
(pl-lp-test!
"max_list([3,1,4,1,5,9,2,6], M) -> 9"
(pl-num-val (pl-walk-deep (dict-get pl-lp-env-mx1 "M")))
9)
(define pl-lp-env-mx2 {})
(pl-solve-once!
pl-lp-db
(pl-lp-goal "max_list([7], M)" pl-lp-env-mx2)
(pl-mk-trail))
(pl-lp-test!
"max_list([7], M) -> 7"
(pl-num-val (pl-walk-deep (dict-get pl-lp-env-mx2 "M")))
7)
;; ── min_list/2 ─────────────────────────────────────────────────────
(define pl-lp-env-mn1 {})
(pl-solve-once!
pl-lp-db
(pl-lp-goal "min_list([3,1,4,1,5,9,2,6], M)" pl-lp-env-mn1)
(pl-mk-trail))
(pl-lp-test!
"min_list([3,1,4,1,5,9,2,6], M) -> 1"
(pl-num-val (pl-walk-deep (dict-get pl-lp-env-mn1 "M")))
1)
(define pl-lp-env-mn2 {})
(pl-solve-once!
pl-lp-db
(pl-lp-goal "min_list([5,2,8], M)" pl-lp-env-mn2)
(pl-mk-trail))
(pl-lp-test!
"min_list([5,2,8], M) -> 2"
(pl-num-val (pl-walk-deep (dict-get pl-lp-env-mn2 "M")))
2)
;; ── delete/3 ───────────────────────────────────────────────────────
(define pl-lp-env-del1 {})
(pl-solve-once!
pl-lp-db
(pl-lp-goal "delete([1,2,3,2,1], 2, R)" pl-lp-env-del1)
(pl-mk-trail))
(pl-lp-test!
"delete([1,2,3,2,1], 2, R) -> [1,3,1]"
(pl-format-term (pl-walk-deep (dict-get pl-lp-env-del1 "R")))
".(1, .(3, .(1, [])))")
(define pl-lp-env-del2 {})
(pl-solve-once!
pl-lp-db
(pl-lp-goal "delete([a,b,c], d, R)" pl-lp-env-del2)
(pl-mk-trail))
(pl-lp-test!
"delete([a,b,c], d, R) -> [a,b,c] (nothing deleted)"
(pl-format-term (pl-walk-deep (dict-get pl-lp-env-del2 "R")))
".(a, .(b, .(c, [])))")
(define pl-lp-env-del3 {})
(pl-solve-once!
pl-lp-db
(pl-lp-goal "delete([], x, R)" pl-lp-env-del3)
(pl-mk-trail))
(pl-lp-test!
"delete([], x, R) -> []"
(pl-format-term (pl-walk-deep (dict-get pl-lp-env-del3 "R")))
"[]")
(define pl-list-predicates-tests-run! (fn () {:failed pl-lp-test-fail :passed pl-lp-test-pass :total pl-lp-test-count :failures pl-lp-test-failures}))

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@@ -1,197 +0,0 @@
;; lib/prolog/tests/meta_call.sx — forall/2, maplist/2, maplist/3, include/3, exclude/3
(define pl-mc-test-count 0)
(define pl-mc-test-pass 0)
(define pl-mc-test-fail 0)
(define pl-mc-test-failures (list))
(define
pl-mc-test!
(fn
(name got expected)
(begin
(set! pl-mc-test-count (+ pl-mc-test-count 1))
(if
(= got expected)
(set! pl-mc-test-pass (+ pl-mc-test-pass 1))
(begin
(set! pl-mc-test-fail (+ pl-mc-test-fail 1))
(append!
pl-mc-test-failures
(str name "\n expected: " expected "\n got: " got)))))))
(define
pl-mc-goal
(fn
(src env)
(pl-instantiate (nth (first (pl-parse (str "g :- " src "."))) 2) env)))
(define
pl-mc-term-to-sx
(fn
(t)
(cond
((pl-num? t) (pl-num-val t))
((pl-atom? t) (pl-atom-name t))
(else t))))
(define
pl-mc-list-sx
(fn
(t)
(let
((w (pl-walk-deep t)))
(cond
((and (pl-atom? w) (= (pl-atom-name w) "[]")) (list))
((and (pl-compound? w) (= (pl-fun w) "."))
(cons
(pl-mc-term-to-sx (first (pl-args w)))
(pl-mc-list-sx (nth (pl-args w) 1))))
(else (list :not-list))))))
(define pl-mc-db (pl-mk-db))
(pl-db-load!
pl-mc-db
(pl-parse "member(X, [X|_]). member(X, [_|T]) :- member(X, T)."))
(pl-db-load! pl-mc-db (pl-parse "double(X, Y) :- Y is X * 2."))
(pl-db-load! pl-mc-db (pl-parse "even(X) :- 0 is X mod 2."))
;; -- forall/2 --
(pl-mc-test!
"forall(member(X,[2,4,6]), 0 is X mod 2) — all even"
(pl-solve-once!
pl-mc-db
(pl-mc-goal "forall(member(X,[2,4,6]), 0 is X mod 2)" {})
(pl-mk-trail))
true)
(pl-mc-test!
"forall(member(X,[2,3,6]), 0 is X mod 2) — 3 is odd, fails"
(pl-solve-once!
pl-mc-db
(pl-mc-goal "forall(member(X,[2,3,6]), 0 is X mod 2)" {})
(pl-mk-trail))
false)
(pl-mc-test!
"forall(member(_,[]), true) — vacuously true"
(pl-solve-once!
pl-mc-db
(pl-mc-goal "forall(member(_,[]), true)" {})
(pl-mk-trail))
true)
;; -- maplist/2 --
(pl-mc-test!
"maplist(atom, [a,b,c]) — all atoms"
(pl-solve-once!
pl-mc-db
(pl-mc-goal "maplist(atom, [a,b,c])" {})
(pl-mk-trail))
true)
(pl-mc-test!
"maplist(atom, [a,1,c]) — 1 is not atom, fails"
(pl-solve-once!
pl-mc-db
(pl-mc-goal "maplist(atom, [a,1,c])" {})
(pl-mk-trail))
false)
(pl-mc-test!
"maplist(atom, []) — vacuously true"
(pl-solve-once!
pl-mc-db
(pl-mc-goal "maplist(atom, [])" {})
(pl-mk-trail))
true)
;; -- maplist/3 --
(pl-mc-test!
"maplist(double, [1,2,3], [2,4,6]) — deterministic check"
(pl-solve-once!
pl-mc-db
(pl-mc-goal "maplist(double, [1,2,3], [2,4,6])" {})
(pl-mk-trail))
true)
(pl-mc-test!
"maplist(double, [1,2,3], [2,4,7]) — wrong result fails"
(pl-solve-once!
pl-mc-db
(pl-mc-goal "maplist(double, [1,2,3], [2,4,7])" {})
(pl-mk-trail))
false)
(define pl-mc-env-ml3 {:L (pl-mk-rt-var "L")})
(pl-solve-once!
pl-mc-db
(pl-mc-goal "maplist(double, [1,2,3], L)" pl-mc-env-ml3)
(pl-mk-trail))
(pl-mc-test!
"maplist(double, [1,2,3], L) — L bound to [2,4,6]"
(pl-mc-list-sx (dict-get pl-mc-env-ml3 "L"))
(list 2 4 6))
;; -- include/3 --
(pl-mc-test!
"include(even, [1,2,3,4,5,6], [2,4,6])"
(pl-solve-once!
pl-mc-db
(pl-mc-goal "include(even, [1,2,3,4,5,6], [2,4,6])" {})
(pl-mk-trail))
true)
(pl-mc-test!
"include(even, [], [])"
(pl-solve-once!
pl-mc-db
(pl-mc-goal "include(even, [], [])" {})
(pl-mk-trail))
true)
(define pl-mc-env-inc {:R (pl-mk-rt-var "R")})
(pl-solve-once!
pl-mc-db
(pl-mc-goal "include(even, [1,2,3,4,5,6], R)" pl-mc-env-inc)
(pl-mk-trail))
(pl-mc-test!
"include(even, [1,2,3,4,5,6], R) — R bound to [2,4,6]"
(pl-mc-list-sx (dict-get pl-mc-env-inc "R"))
(list 2 4 6))
;; -- exclude/3 --
(pl-mc-test!
"exclude(even, [1,2,3,4,5,6], [1,3,5])"
(pl-solve-once!
pl-mc-db
(pl-mc-goal "exclude(even, [1,2,3,4,5,6], [1,3,5])" {})
(pl-mk-trail))
true)
(pl-mc-test!
"exclude(even, [], [])"
(pl-solve-once!
pl-mc-db
(pl-mc-goal "exclude(even, [], [])" {})
(pl-mk-trail))
true)
(define pl-mc-env-exc {:R (pl-mk-rt-var "R")})
(pl-solve-once!
pl-mc-db
(pl-mc-goal "exclude(even, [1,2,3,4,5,6], R)" pl-mc-env-exc)
(pl-mk-trail))
(pl-mc-test!
"exclude(even, [1,2,3,4,5,6], R) — R bound to [1,3,5]"
(pl-mc-list-sx (dict-get pl-mc-env-exc "R"))
(list 1 3 5))
(define pl-meta-call-tests-run! (fn () {:failed pl-mc-test-fail :passed pl-mc-test-pass :total pl-mc-test-count :failures pl-mc-test-failures}))

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@@ -1,252 +0,0 @@
;; lib/prolog/tests/meta_predicates.sx — \+/1, not/1, once/1, ignore/1, ground/1, sort/2, msort/2, atom_number/2, number_string/2
(define pl-mp-test-count 0)
(define pl-mp-test-pass 0)
(define pl-mp-test-fail 0)
(define pl-mp-test-failures (list))
(define
pl-mp-test!
(fn
(name got expected)
(begin
(set! pl-mp-test-count (+ pl-mp-test-count 1))
(if
(= got expected)
(set! pl-mp-test-pass (+ pl-mp-test-pass 1))
(begin
(set! pl-mp-test-fail (+ pl-mp-test-fail 1))
(append!
pl-mp-test-failures
(str name "\n expected: " expected "\n got: " got)))))))
(define
pl-mp-goal
(fn
(src env)
(pl-instantiate (nth (first (pl-parse (str "g :- " src "."))) 2) env)))
(define pl-mp-db (pl-mk-db))
(pl-db-load!
pl-mp-db
(pl-parse "member(X, [X|_]). member(X, [_|T]) :- member(X, T)."))
;; -- \+/1 --
(pl-mp-test!
"\\+(fail) succeeds"
(pl-solve-once! pl-mp-db (pl-mp-goal "\\+(fail)" {}) (pl-mk-trail))
true)
(pl-mp-test!
"\\+(true) fails"
(pl-solve-once! pl-mp-db (pl-mp-goal "\\+(true)" {}) (pl-mk-trail))
false)
(pl-mp-test!
"\\+(member(d, [a,b,c])) succeeds"
(pl-solve-once!
pl-mp-db
(pl-mp-goal "\\+(member(d, [a,b,c]))" {})
(pl-mk-trail))
true)
(pl-mp-test!
"\\+(member(a, [a,b,c])) fails"
(pl-solve-once!
pl-mp-db
(pl-mp-goal "\\+(member(a, [a,b,c]))" {})
(pl-mk-trail))
false)
(define pl-mp-env-neg {})
(pl-solve-once!
pl-mp-db
(pl-mp-goal "\\+(X = 5)" pl-mp-env-neg)
(pl-mk-trail))
(pl-mp-test!
"\\+(X=5) fails, X stays unbound (bindings undone)"
(nil? (pl-var-binding (dict-get pl-mp-env-neg "X")))
true)
;; -- not/1 --
(pl-mp-test!
"not(fail) succeeds"
(pl-solve-once! pl-mp-db (pl-mp-goal "not(fail)" {}) (pl-mk-trail))
true)
(pl-mp-test!
"not(true) fails"
(pl-solve-once! pl-mp-db (pl-mp-goal "not(true)" {}) (pl-mk-trail))
false)
;; -- once/1 --
(pl-mp-test!
"once(member(X,[1,2,3])) succeeds once"
(pl-solve-count!
pl-mp-db
(pl-mp-goal "once(member(X,[1,2,3]))" {})
(pl-mk-trail))
1)
(define pl-mp-env-once {})
(pl-solve-once!
pl-mp-db
(pl-mp-goal "once(member(X,[1,2,3]))" pl-mp-env-once)
(pl-mk-trail))
(pl-mp-test!
"once(member(X,[1,2,3])): X=1 (first solution)"
(pl-num-val (pl-walk-deep (dict-get pl-mp-env-once "X")))
1)
(pl-mp-test!
"once(fail) fails"
(pl-solve-once!
pl-mp-db
(pl-mp-goal "once(fail)" {})
(pl-mk-trail))
false)
;; -- ignore/1 --
(pl-mp-test!
"ignore(true) succeeds"
(pl-solve-once!
pl-mp-db
(pl-mp-goal "ignore(true)" {})
(pl-mk-trail))
true)
(pl-mp-test!
"ignore(fail) still succeeds"
(pl-solve-once!
pl-mp-db
(pl-mp-goal "ignore(fail)" {})
(pl-mk-trail))
true)
;; -- ground/1 --
(pl-mp-test!
"ground(foo(1, a)) succeeds"
(pl-solve-once!
pl-mp-db
(pl-mp-goal "ground(foo(1, a))" {})
(pl-mk-trail))
true)
(pl-mp-test!
"ground(foo(X, a)) fails (X unbound)"
(pl-solve-once!
pl-mp-db
(pl-mp-goal "ground(foo(X, a))" {})
(pl-mk-trail))
false)
(pl-mp-test!
"ground(42) succeeds"
(pl-solve-once!
pl-mp-db
(pl-mp-goal "ground(42)" {})
(pl-mk-trail))
true)
;; -- sort/2 --
(pl-mp-test!
"sort([b,a,c], [a,b,c])"
(pl-solve-once!
pl-mp-db
(pl-mp-goal "sort([b,a,c], [a,b,c])" {})
(pl-mk-trail))
true)
(pl-mp-test!
"sort([b,a,a,c], [a,b,c]) (removes duplicates)"
(pl-solve-once!
pl-mp-db
(pl-mp-goal "sort([b,a,a,c], [a,b,c])" {})
(pl-mk-trail))
true)
(pl-mp-test!
"sort([], [])"
(pl-solve-once!
pl-mp-db
(pl-mp-goal "sort([], [])" {})
(pl-mk-trail))
true)
;; -- msort/2 --
(pl-mp-test!
"msort([b,a,a,c], [a,a,b,c]) (keeps duplicates)"
(pl-solve-once!
pl-mp-db
(pl-mp-goal "msort([b,a,a,c], [a,a,b,c])" {})
(pl-mk-trail))
true)
(pl-mp-test!
"msort([3,1,2,1], [1,1,2,3])"
(pl-solve-once!
pl-mp-db
(pl-mp-goal "msort([3,1,2,1], [1,1,2,3])" {})
(pl-mk-trail))
true)
;; -- atom_number/2 --
(define pl-mp-env-an1 {})
(pl-solve-once!
pl-mp-db
(pl-mp-goal "atom_number('42', N)" pl-mp-env-an1)
(pl-mk-trail))
(pl-mp-test!
"atom_number('42', N) -> N=42"
(pl-num-val (pl-walk-deep (dict-get pl-mp-env-an1 "N")))
42)
(define pl-mp-env-an2 {})
(pl-solve-once!
pl-mp-db
(pl-mp-goal "atom_number(A, 7)" pl-mp-env-an2)
(pl-mk-trail))
(pl-mp-test!
"atom_number(A, 7) -> A='7'"
(pl-atom-name (pl-walk-deep (dict-get pl-mp-env-an2 "A")))
"7")
(pl-mp-test!
"atom_number(foo, N) fails (not a number)"
(pl-solve-once!
pl-mp-db
(pl-mp-goal "atom_number(foo, N)" {})
(pl-mk-trail))
false)
;; -- number_string/2 --
(define pl-mp-env-ns1 {})
(pl-solve-once!
pl-mp-db
(pl-mp-goal "number_string(42, S)" pl-mp-env-ns1)
(pl-mk-trail))
(pl-mp-test!
"number_string(42, S) -> S='42'"
(pl-atom-name (pl-walk-deep (dict-get pl-mp-env-ns1 "S")))
"42")
(define pl-mp-env-ns2 {})
(pl-solve-once!
pl-mp-db
(pl-mp-goal "number_string(N, '3.14')" pl-mp-env-ns2)
(pl-mk-trail))
(pl-mp-test!
"number_string(N, '3.14') -> N=3.14"
(pl-num-val (pl-walk-deep (dict-get pl-mp-env-ns2 "N")))
3.14)
(define pl-meta-predicates-tests-run! (fn () {:failed pl-mp-test-fail :passed pl-mp-test-pass :total pl-mp-test-count :failures pl-mp-test-failures}))

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@@ -1,193 +0,0 @@
;; lib/prolog/tests/operators.sx — operator-table parsing + comparison built-ins.
(define pl-op-test-count 0)
(define pl-op-test-pass 0)
(define pl-op-test-fail 0)
(define pl-op-test-failures (list))
(define
pl-op-test!
(fn
(name got expected)
(begin
(set! pl-op-test-count (+ pl-op-test-count 1))
(if
(= got expected)
(set! pl-op-test-pass (+ pl-op-test-pass 1))
(begin
(set! pl-op-test-fail (+ pl-op-test-fail 1))
(append!
pl-op-test-failures
(str name "\n expected: " expected "\n got: " got)))))))
(define pl-op-empty-db (pl-mk-db))
(define
pl-op-body
(fn (src) (nth (first (pl-parse (str "g :- " src "."))) 2)))
(define pl-op-goal (fn (src env) (pl-instantiate (pl-op-body src) env)))
;; ── parsing tests ──
(pl-op-test!
"infix +"
(pl-op-body "a + b")
(list "compound" "+" (list (list "atom" "a") (list "atom" "b"))))
(pl-op-test!
"infix * tighter than +"
(pl-op-body "a + b * c")
(list
"compound"
"+"
(list
(list "atom" "a")
(list "compound" "*" (list (list "atom" "b") (list "atom" "c"))))))
(pl-op-test!
"parens override precedence"
(pl-op-body "(a + b) * c")
(list
"compound"
"*"
(list
(list "compound" "+" (list (list "atom" "a") (list "atom" "b")))
(list "atom" "c"))))
(pl-op-test!
"+ is yfx (left-assoc)"
(pl-op-body "a + b + c")
(list
"compound"
"+"
(list
(list "compound" "+" (list (list "atom" "a") (list "atom" "b")))
(list "atom" "c"))))
(pl-op-test!
"; is xfy (right-assoc)"
(pl-op-body "a ; b ; c")
(list
"compound"
";"
(list
(list "atom" "a")
(list "compound" ";" (list (list "atom" "b") (list "atom" "c"))))))
(pl-op-test!
"= folds at 700"
(pl-op-body "X = 5")
(list "compound" "=" (list (list "var" "X") (list "num" 5))))
(pl-op-test!
"is + nests via 700>500>400"
(pl-op-body "X is 2 + 3 * 4")
(list
"compound"
"is"
(list
(list "var" "X")
(list
"compound"
"+"
(list
(list "num" 2)
(list "compound" "*" (list (list "num" 3) (list "num" 4))))))))
(pl-op-test!
"< parses at 700"
(pl-op-body "2 < 3")
(list "compound" "<" (list (list "num" 2) (list "num" 3))))
(pl-op-test!
"mod parses as yfx 400"
(pl-op-body "10 mod 3")
(list "compound" "mod" (list (list "num" 10) (list "num" 3))))
(pl-op-test!
"comma in body folds right-assoc"
(pl-op-body "a, b, c")
(list
"compound"
","
(list
(list "atom" "a")
(list "compound" "," (list (list "atom" "b") (list "atom" "c"))))))
;; ── solver tests via infix ──
(pl-op-test!
"X is 2 + 3 binds X = 5"
(let
((env {}) (trail (pl-mk-trail)))
(begin
(pl-solve-once! pl-op-empty-db (pl-op-goal "X is 2 + 3" env) trail)
(pl-num-val (pl-walk-deep (dict-get env "X")))))
5)
(pl-op-test!
"infix conjunction parses + solves"
(pl-solve-once!
pl-op-empty-db
(pl-op-goal "X = 5, X = 5" {})
(pl-mk-trail))
true)
(pl-op-test!
"infix mismatch fails"
(pl-solve-once!
pl-op-empty-db
(pl-op-goal "X = 5, X = 6" {})
(pl-mk-trail))
false)
(pl-op-test!
"infix disjunction picks left"
(pl-solve-once!
pl-op-empty-db
(pl-op-goal "true ; fail" {})
(pl-mk-trail))
true)
(pl-op-test!
"2 < 5 succeeds"
(pl-solve-once!
pl-op-empty-db
(pl-op-goal "2 < 5" {})
(pl-mk-trail))
true)
(pl-op-test!
"5 < 2 fails"
(pl-solve-once!
pl-op-empty-db
(pl-op-goal "5 < 2" {})
(pl-mk-trail))
false)
(pl-op-test!
"5 >= 5 succeeds"
(pl-solve-once!
pl-op-empty-db
(pl-op-goal "5 >= 5" {})
(pl-mk-trail))
true)
(pl-op-test!
"3 =< 5 succeeds"
(pl-solve-once!
pl-op-empty-db
(pl-op-goal "3 =< 5" {})
(pl-mk-trail))
true)
(pl-op-test!
"infix < with arithmetic both sides"
(pl-solve-once!
pl-op-empty-db
(pl-op-goal "1 + 2 < 2 * 3" {})
(pl-mk-trail))
true)
(define pl-operators-tests-run! (fn () {:failed pl-op-test-fail :passed pl-op-test-pass :total pl-op-test-count :failures pl-op-test-failures}))

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@@ -1,5 +0,0 @@
%% append/3 list concatenation, classic Prolog
%% Two clauses: empty-prefix base case + recursive cons-prefix.
%% Bidirectional works in all modes: build, check, split.
append([], L, L).
append([H|T], L, [H|R]) :- append(T, L, R).

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@@ -1,114 +0,0 @@
;; lib/prolog/tests/programs/append.sx — append/3 test runner
;;
;; Mirrors the Prolog source in append.pl (embedded as a string here because
;; the SX runtime has no file-read primitive yet).
(define pl-ap-test-count 0)
(define pl-ap-test-pass 0)
(define pl-ap-test-fail 0)
(define pl-ap-test-failures (list))
(define
pl-ap-test!
(fn
(name got expected)
(begin
(set! pl-ap-test-count (+ pl-ap-test-count 1))
(if
(= got expected)
(set! pl-ap-test-pass (+ pl-ap-test-pass 1))
(begin
(set! pl-ap-test-fail (+ pl-ap-test-fail 1))
(append!
pl-ap-test-failures
(str name "\n expected: " expected "\n got: " got)))))))
(define
pl-ap-term-to-sx
(fn
(t)
(cond
((pl-num? t) (pl-num-val t))
((pl-atom? t) (pl-atom-name t))
(true (list :complex)))))
(define
pl-ap-list-walked
(fn
(w)
(cond
((and (pl-atom? w) (= (pl-atom-name w) "[]")) (list))
((and (pl-compound? w) (= (pl-fun w) ".") (= (len (pl-args w)) 2))
(cons
(pl-ap-term-to-sx (first (pl-args w)))
(pl-ap-list-walked (nth (pl-args w) 1))))
(true (list :not-list)))))
(define pl-ap-list-to-sx (fn (t) (pl-ap-list-walked (pl-walk-deep t))))
(define
pl-ap-goal
(fn
(src env)
(pl-instantiate (nth (first (pl-parse (str "g :- " src "."))) 2) env)))
(define
pl-ap-prog-src
"append([], L, L). append([H|T], L, [H|R]) :- append(T, L, R).")
(define pl-ap-db (pl-mk-db))
(pl-db-load! pl-ap-db (pl-parse pl-ap-prog-src))
(define pl-ap-env-1 {})
(define pl-ap-goal-1 (pl-ap-goal "append([], [a, b], X)" pl-ap-env-1))
(pl-solve-once! pl-ap-db pl-ap-goal-1 (pl-mk-trail))
(pl-ap-test!
"append([], [a, b], X) → X = [a, b]"
(pl-ap-list-to-sx (dict-get pl-ap-env-1 "X"))
(list "a" "b"))
(define pl-ap-env-2 {})
(define pl-ap-goal-2 (pl-ap-goal "append([1, 2], [3, 4], X)" pl-ap-env-2))
(pl-solve-once! pl-ap-db pl-ap-goal-2 (pl-mk-trail))
(pl-ap-test!
"append([1, 2], [3, 4], X) → X = [1, 2, 3, 4]"
(pl-ap-list-to-sx (dict-get pl-ap-env-2 "X"))
(list 1 2 3 4))
(pl-ap-test!
"append([1], [2, 3], [1, 2, 3]) succeeds"
(pl-solve-once!
pl-ap-db
(pl-ap-goal "append([1], [2, 3], [1, 2, 3])" {})
(pl-mk-trail))
true)
(pl-ap-test!
"append([1, 2], [3], [1, 2, 4]) fails"
(pl-solve-once!
pl-ap-db
(pl-ap-goal "append([1, 2], [3], [1, 2, 4])" {})
(pl-mk-trail))
false)
(pl-ap-test!
"append(X, Y, [1, 2, 3]) backtracks 4 times"
(pl-solve-count!
pl-ap-db
(pl-ap-goal "append(X, Y, [1, 2, 3])" {})
(pl-mk-trail))
4)
(define pl-ap-env-6 {})
(define pl-ap-goal-6 (pl-ap-goal "append(X, [3], [1, 2, 3])" pl-ap-env-6))
(pl-solve-once! pl-ap-db pl-ap-goal-6 (pl-mk-trail))
(pl-ap-test!
"append(X, [3], [1, 2, 3]) deduces X = [1, 2]"
(pl-ap-list-to-sx (dict-get pl-ap-env-6 "X"))
(list 1 2))
(define pl-append-tests-run! (fn () {:failed pl-ap-test-fail :passed pl-ap-test-pass :total pl-ap-test-count :failures pl-ap-test-failures}))

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@@ -1,24 +0,0 @@
%% family facts + transitive ancestor + derived relations.
%% Five-generation tree: tom -> bob -> {ann, pat} -> jim, plus tom's
%% other child liz.
parent(tom, bob).
parent(tom, liz).
parent(bob, ann).
parent(bob, pat).
parent(pat, jim).
male(tom).
male(bob).
male(jim).
male(pat).
female(liz).
female(ann).
father(F, C) :- parent(F, C), male(F).
mother(M, C) :- parent(M, C), female(M).
ancestor(X, Y) :- parent(X, Y).
ancestor(X, Y) :- parent(X, Z), ancestor(Z, Y).
sibling(X, Y) :- parent(P, X), parent(P, Y), \=(X, Y).

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