giles
503bdf12d6
Some checks failed
Test, Build, and Deploy / test-build-deploy (push) Failing after 18s
Postfix '.' branch now peeks at the next token to disambiguate: .ident → selector / member access (list :select OBJ "field") .(TYPE) → type assertion (list :assert OBJ TYPE) New gp-parse-type covers the minimum types needed for assertions: name → (list :ty-name "int") pkg.Name → (list :ty-sel "pkg" "Name") *T / **T → (list :ty-ptr (list :ty-ptr ...)) Full type grammar — slice []T, array [N]T, map[K]V, chan, func, struct, interface — is a separate Phase 2 sub-deliverable. Type AST shapes are Go-specific tagged lists; the canonical AST kit has no type-system primitives at all yet. Worth a richer kit discussion once Phase 3 (bidirectional type checker) lands and the sister plan static-types-bidirectional has a real surface to react to. parse 70/70, total 199/199. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
373 lines
9.9 KiB
Plaintext
373 lines
9.9 KiB
Plaintext
;; Go parser tests.
|
|
|
|
(define go-parse-test-count 0)
|
|
(define go-parse-test-pass 0)
|
|
(define go-parse-test-fails (list))
|
|
|
|
(define
|
|
go-parse-test
|
|
(fn
|
|
(name actual expected)
|
|
(set! go-parse-test-count (+ go-parse-test-count 1))
|
|
(if
|
|
(= actual expected)
|
|
(set! go-parse-test-pass (+ go-parse-test-pass 1))
|
|
(append! go-parse-test-fails {:name name :expected expected :actual actual}))))
|
|
|
|
;; ── primary: literals ─────────────────────────────────────────────
|
|
(go-parse-test "int literal" (go-parse "42") (ast-literal "42"))
|
|
(go-parse-test "zero literal" (go-parse "0") (ast-literal "0"))
|
|
(go-parse-test "hex literal" (go-parse "0xFF") (ast-literal "0xFF"))
|
|
(go-parse-test "float literal" (go-parse "3.14") (ast-literal "3.14"))
|
|
(go-parse-test "leading-dot float" (go-parse ".5") (ast-literal ".5"))
|
|
(go-parse-test "exponent float" (go-parse "1e10") (ast-literal "1e10"))
|
|
(go-parse-test "imag literal" (go-parse "2i") (ast-literal "2i"))
|
|
(go-parse-test "string literal" (go-parse "\"hi\"") (ast-literal "hi"))
|
|
(go-parse-test "empty string" (go-parse "\"\"") (ast-literal ""))
|
|
(go-parse-test "raw string" (go-parse "`a\nb`") (ast-literal "a\nb"))
|
|
(go-parse-test "rune literal" (go-parse "'a'") (ast-literal "a"))
|
|
|
|
;; ── primary: identifiers ──────────────────────────────────────────
|
|
(go-parse-test "ident: simple" (go-parse "x") (ast-var "x"))
|
|
(go-parse-test "ident: underscore" (go-parse "_foo") (ast-var "_foo"))
|
|
(go-parse-test "ident: mixed case" (go-parse "fooBar") (ast-var "fooBar"))
|
|
(go-parse-test "ident: with digit" (go-parse "x123") (ast-var "x123"))
|
|
|
|
;; ── primary: non-primary returns nil ──────────────────────────────
|
|
(go-parse-test
|
|
"bin: a + b"
|
|
(go-parse "a + b")
|
|
(ast-app (ast-var "+") (list (ast-var "a") (ast-var "b"))))
|
|
(go-parse-test
|
|
"bin: int + int"
|
|
(go-parse "1 + 2")
|
|
(ast-app (ast-var "+") (list (ast-literal "1") (ast-literal "2"))))
|
|
|
|
;; ── report ────────────────────────────────────────────────────────
|
|
(go-parse-test
|
|
"bin: left-assoc a + b + c"
|
|
(go-parse "a + b + c")
|
|
(ast-app
|
|
(ast-var "+")
|
|
(list
|
|
(ast-app (ast-var "+") (list (ast-var "a") (ast-var "b")))
|
|
(ast-var "c"))))
|
|
|
|
(go-parse-test
|
|
"bin: * tighter than + → a + b * c"
|
|
(go-parse "a + b * c")
|
|
(ast-app
|
|
(ast-var "+")
|
|
(list
|
|
(ast-var "a")
|
|
(ast-app (ast-var "*") (list (ast-var "b") (ast-var "c"))))))
|
|
|
|
(go-parse-test
|
|
"bin: * tighter than + → a * b + c"
|
|
(go-parse "a * b + c")
|
|
(ast-app
|
|
(ast-var "+")
|
|
(list
|
|
(ast-app (ast-var "*") (list (ast-var "a") (ast-var "b")))
|
|
(ast-var "c"))))
|
|
|
|
(go-parse-test
|
|
"bin: && tighter than || → a || b && c"
|
|
(go-parse "a || b && c")
|
|
(ast-app
|
|
(ast-var "||")
|
|
(list
|
|
(ast-var "a")
|
|
(ast-app (ast-var "&&") (list (ast-var "b") (ast-var "c"))))))
|
|
|
|
(go-parse-test
|
|
"bin: comparison tighter than &&"
|
|
(go-parse "a == b && c < d")
|
|
(ast-app
|
|
(ast-var "&&")
|
|
(list
|
|
(ast-app (ast-var "==") (list (ast-var "a") (ast-var "b")))
|
|
(ast-app (ast-var "<") (list (ast-var "c") (ast-var "d"))))))
|
|
|
|
(go-parse-test
|
|
"bin: long left-assoc chain a + b - c + d"
|
|
(go-parse "a + b - c + d")
|
|
(ast-app
|
|
(ast-var "+")
|
|
(list
|
|
(ast-app
|
|
(ast-var "-")
|
|
(list
|
|
(ast-app (ast-var "+") (list (ast-var "a") (ast-var "b")))
|
|
(ast-var "c")))
|
|
(ast-var "d"))))
|
|
|
|
(go-parse-test
|
|
"bin: equal-prec left-assoc — a | b ^ c → (a | b) ^ c"
|
|
(go-parse "a | b ^ c")
|
|
(ast-app
|
|
(ast-var "^")
|
|
(list
|
|
(ast-app (ast-var "|") (list (ast-var "a") (ast-var "b")))
|
|
(ast-var "c"))))
|
|
|
|
(go-parse-test
|
|
"unary: -a"
|
|
(go-parse "-a")
|
|
(ast-app (ast-var "-") (list (ast-var "a"))))
|
|
|
|
(go-parse-test
|
|
"unary: +a"
|
|
(go-parse "+a")
|
|
(ast-app (ast-var "+") (list (ast-var "a"))))
|
|
|
|
(go-parse-test
|
|
"unary: !x"
|
|
(go-parse "!x")
|
|
(ast-app (ast-var "!") (list (ast-var "x"))))
|
|
|
|
(go-parse-test
|
|
"unary: ^x (bitwise NOT)"
|
|
(go-parse "^x")
|
|
(ast-app (ast-var "^") (list (ast-var "x"))))
|
|
|
|
(go-parse-test
|
|
"unary: *p (pointer deref)"
|
|
(go-parse "*p")
|
|
(ast-app (ast-var "*") (list (ast-var "p"))))
|
|
|
|
(go-parse-test
|
|
"unary: &v (address-of)"
|
|
(go-parse "&v")
|
|
(ast-app (ast-var "&") (list (ast-var "v"))))
|
|
|
|
(go-parse-test
|
|
"unary: <-ch (channel recv)"
|
|
(go-parse "<-ch")
|
|
(ast-app (ast-var "<-") (list (ast-var "ch"))))
|
|
|
|
(go-parse-test
|
|
"unary: -1 (on literal)"
|
|
(go-parse "-1")
|
|
(ast-app (ast-var "-") (list (ast-literal "1"))))
|
|
|
|
(go-parse-test
|
|
"unary: !!x (chained, right-recursive)"
|
|
(go-parse "!!x")
|
|
(ast-app
|
|
(ast-var "!")
|
|
(list (ast-app (ast-var "!") (list (ast-var "x"))))))
|
|
|
|
(go-parse-test
|
|
"unary: -a + b → ((-a) + b) — unary tighter than binary"
|
|
(go-parse "-a + b")
|
|
(ast-app
|
|
(ast-var "+")
|
|
(list (ast-app (ast-var "-") (list (ast-var "a"))) (ast-var "b"))))
|
|
|
|
(go-parse-test
|
|
"unary: a + -b → unary applies to RHS"
|
|
(go-parse "a + -b")
|
|
(ast-app
|
|
(ast-var "+")
|
|
(list (ast-var "a") (ast-app (ast-var "-") (list (ast-var "b"))))))
|
|
|
|
(go-parse-test
|
|
"call: f() (no args)"
|
|
(go-parse "f()")
|
|
(ast-app (ast-var "f") (list)))
|
|
|
|
(go-parse-test
|
|
"call: f(x)"
|
|
(go-parse "f(x)")
|
|
(ast-app (ast-var "f") (list (ast-var "x"))))
|
|
|
|
(go-parse-test
|
|
"call: f(x, y, z)"
|
|
(go-parse "f(x, y, z)")
|
|
(ast-app (ast-var "f") (list (ast-var "x") (ast-var "y") (ast-var "z"))))
|
|
|
|
(go-parse-test
|
|
"call: f(1, 2)"
|
|
(go-parse "f(1, 2)")
|
|
(ast-app (ast-var "f") (list (ast-literal "1") (ast-literal "2"))))
|
|
|
|
(go-parse-test
|
|
"call: f(a + b) — arg can be a binary expr"
|
|
(go-parse "f(a + b)")
|
|
(ast-app
|
|
(ast-var "f")
|
|
(list (ast-app (ast-var "+") (list (ast-var "a") (ast-var "b"))))))
|
|
|
|
(go-parse-test
|
|
"call: f(g(x)) — nested"
|
|
(go-parse "f(g(x))")
|
|
(ast-app
|
|
(ast-var "f")
|
|
(list (ast-app (ast-var "g") (list (ast-var "x"))))))
|
|
|
|
(go-parse-test
|
|
"select: x.y"
|
|
(go-parse "x.y")
|
|
(list :select (ast-var "x") "y"))
|
|
|
|
(go-parse-test
|
|
"select: x.y.z (chained left-assoc)"
|
|
(go-parse "x.y.z")
|
|
(list :select (list :select (ast-var "x") "y") "z"))
|
|
|
|
(go-parse-test
|
|
"method: obj.method()"
|
|
(go-parse "obj.method()")
|
|
(ast-app (list :select (ast-var "obj") "method") (list)))
|
|
|
|
(go-parse-test
|
|
"method: obj.method(x, y)"
|
|
(go-parse "obj.method(x, y)")
|
|
(ast-app
|
|
(list :select (ast-var "obj") "method")
|
|
(list (ast-var "x") (ast-var "y"))))
|
|
|
|
(go-parse-test
|
|
"postfix: -f(x) → unary applies after call"
|
|
(go-parse "-f(x)")
|
|
(ast-app
|
|
(ast-var "-")
|
|
(list (ast-app (ast-var "f") (list (ast-var "x"))))))
|
|
|
|
(go-parse-test
|
|
"postfix: f(x) + 1 → call binds tighter than binary +"
|
|
(go-parse "f(x) + 1")
|
|
(ast-app
|
|
(ast-var "+")
|
|
(list (ast-app (ast-var "f") (list (ast-var "x"))) (ast-literal "1"))))
|
|
|
|
(go-parse-test
|
|
"index: a[0]"
|
|
(go-parse "a[0]")
|
|
(list :index (ast-var "a") (ast-literal "0")))
|
|
|
|
(go-parse-test
|
|
"index: a[i]"
|
|
(go-parse "a[i]")
|
|
(list :index (ast-var "a") (ast-var "i")))
|
|
|
|
(go-parse-test
|
|
"index: a[i + 1] (expr index)"
|
|
(go-parse "a[i + 1]")
|
|
(list
|
|
:index (ast-var "a")
|
|
(ast-app (ast-var "+") (list (ast-var "i") (ast-literal "1")))))
|
|
|
|
(go-parse-test
|
|
"index: m[\"key\"] (string index)"
|
|
(go-parse "m[\"key\"]")
|
|
(list :index (ast-var "m") (ast-literal "key")))
|
|
|
|
(go-parse-test
|
|
"index: a[0][1] (chained)"
|
|
(go-parse "a[0][1]")
|
|
(list
|
|
:index (list :index (ast-var "a") (ast-literal "0"))
|
|
(ast-literal "1")))
|
|
|
|
(go-parse-test
|
|
"index: a[0].field (mixed with selector)"
|
|
(go-parse "a[0].field")
|
|
(list :select (list :index (ast-var "a") (ast-literal "0")) "field"))
|
|
|
|
(go-parse-test
|
|
"slice: a[:]"
|
|
(go-parse "a[:]")
|
|
(list :slice (ast-var "a") nil nil nil))
|
|
|
|
(go-parse-test
|
|
"slice: a[1:]"
|
|
(go-parse "a[1:]")
|
|
(list :slice (ast-var "a") (ast-literal "1") nil nil))
|
|
|
|
(go-parse-test
|
|
"slice: a[:2]"
|
|
(go-parse "a[:2]")
|
|
(list :slice (ast-var "a") nil (ast-literal "2") nil))
|
|
|
|
(go-parse-test
|
|
"slice: a[1:2]"
|
|
(go-parse "a[1:2]")
|
|
(list :slice (ast-var "a") (ast-literal "1") (ast-literal "2") nil))
|
|
|
|
(go-parse-test
|
|
"slice: a[1:2:3] (full slice)"
|
|
(go-parse "a[1:2:3]")
|
|
(list
|
|
:slice (ast-var "a")
|
|
(ast-literal "1")
|
|
(ast-literal "2")
|
|
(ast-literal "3")))
|
|
|
|
(go-parse-test
|
|
"slice: a[i:j] (var bounds)"
|
|
(go-parse "a[i:j]")
|
|
(list :slice (ast-var "a") (ast-var "i") (ast-var "j") nil))
|
|
|
|
(go-parse-test
|
|
"assert: v.(int)"
|
|
(go-parse "v.(int)")
|
|
(list :assert (ast-var "v") (list :ty-name "int")))
|
|
|
|
(go-parse-test
|
|
"assert: v.(string)"
|
|
(go-parse "v.(string)")
|
|
(list :assert (ast-var "v") (list :ty-name "string")))
|
|
|
|
(go-parse-test
|
|
"assert: v.(MyType) (user-defined)"
|
|
(go-parse "v.(MyType)")
|
|
(list :assert (ast-var "v") (list :ty-name "MyType")))
|
|
|
|
(go-parse-test
|
|
"assert: v.(*T) (pointer type)"
|
|
(go-parse "v.(*T)")
|
|
(list :assert (ast-var "v") (list :ty-ptr (list :ty-name "T"))))
|
|
|
|
(go-parse-test
|
|
"assert: v.(**T) (pointer-to-pointer)"
|
|
(go-parse "v.(**T)")
|
|
(list
|
|
:assert (ast-var "v")
|
|
(list :ty-ptr (list :ty-ptr (list :ty-name "T")))))
|
|
|
|
(go-parse-test
|
|
"assert: v.(pkg.T) (qualified type)"
|
|
(go-parse "v.(pkg.T)")
|
|
(list :assert (ast-var "v") (list :ty-sel "pkg" "T")))
|
|
|
|
(go-parse-test
|
|
"assert: f().(int) (on call result)"
|
|
(go-parse "f().(int)")
|
|
(list :assert (ast-app (ast-var "f") (list)) (list :ty-name "int")))
|
|
|
|
(go-parse-test
|
|
"assert: obj.field.(int) (after selector)"
|
|
(go-parse "obj.field.(int)")
|
|
(list
|
|
:assert (list :select (ast-var "obj") "field")
|
|
(list :ty-name "int")))
|
|
|
|
(go-parse-test
|
|
"assert: v.(int) + 1 (assert binds tighter than binary +)"
|
|
(go-parse "v.(int) + 1")
|
|
(ast-app
|
|
(ast-var "+")
|
|
(list
|
|
(list :assert (ast-var "v") (list :ty-name "int"))
|
|
(ast-literal "1"))))
|
|
|
|
(go-parse-test "non-primary: '+'" (go-parse "+") nil)
|
|
|
|
(go-parse-test "non-primary: empty" (go-parse "") nil)
|
|
|
|
(define
|
|
go-parse-test-summary
|
|
(str "parse " go-parse-test-pass "/" go-parse-test-count))
|