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Adds Go interface type expressions:
interface {} → empty
interface { Close() } → no-param method
interface { String() string } → with single return
interface { Read([]byte) (int, error) } → multi-return method
interface { Stringer } → embedded named iface
interface { io.Reader } → qualified embedded
interface { io.Reader; Close() error } → mixed
gp-parse-interface-elems walks elements tolerating ASI semis. Each
element is either:
(list :method NAME PARAMS RESULTS)
(list :embed TYPE)
Method params/results reuse gp-parse-func-type-params/results — the
shape is identical to a free-standing func type. Go 1.18+ type sets
(interface { ~int | ~float64 }) are deferred until the generics
sub-deliverable.
With this, the full Phase 2 **type expressions** sub-deliverable is
complete (pending only field tags, struct/iface embeds details,
variadic, named func params, generics — all flagged later).
parse 106/106, total 235/235.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
660 lines
18 KiB
Plaintext
660 lines
18 KiB
Plaintext
;; Go parser tests.
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(define go-parse-test-count 0)
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(define go-parse-test-pass 0)
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(define go-parse-test-fails (list))
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(define
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go-parse-test
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(fn
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(name actual expected)
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(set! go-parse-test-count (+ go-parse-test-count 1))
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(if
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(= actual expected)
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(set! go-parse-test-pass (+ go-parse-test-pass 1))
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(append! go-parse-test-fails {:name name :expected expected :actual actual}))))
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;; ── primary: literals ─────────────────────────────────────────────
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(go-parse-test "int literal" (go-parse "42") (ast-literal "42"))
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(go-parse-test "zero literal" (go-parse "0") (ast-literal "0"))
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(go-parse-test "hex literal" (go-parse "0xFF") (ast-literal "0xFF"))
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(go-parse-test "float literal" (go-parse "3.14") (ast-literal "3.14"))
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(go-parse-test "leading-dot float" (go-parse ".5") (ast-literal ".5"))
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(go-parse-test "exponent float" (go-parse "1e10") (ast-literal "1e10"))
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(go-parse-test "imag literal" (go-parse "2i") (ast-literal "2i"))
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(go-parse-test "string literal" (go-parse "\"hi\"") (ast-literal "hi"))
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(go-parse-test "empty string" (go-parse "\"\"") (ast-literal ""))
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(go-parse-test "raw string" (go-parse "`a\nb`") (ast-literal "a\nb"))
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(go-parse-test "rune literal" (go-parse "'a'") (ast-literal "a"))
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;; ── primary: identifiers ──────────────────────────────────────────
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(go-parse-test "ident: simple" (go-parse "x") (ast-var "x"))
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(go-parse-test "ident: underscore" (go-parse "_foo") (ast-var "_foo"))
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(go-parse-test "ident: mixed case" (go-parse "fooBar") (ast-var "fooBar"))
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(go-parse-test "ident: with digit" (go-parse "x123") (ast-var "x123"))
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;; ── primary: non-primary returns nil ──────────────────────────────
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(go-parse-test
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"bin: a + b"
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(go-parse "a + b")
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(ast-app (ast-var "+") (list (ast-var "a") (ast-var "b"))))
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(go-parse-test
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"bin: int + int"
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(go-parse "1 + 2")
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(ast-app (ast-var "+") (list (ast-literal "1") (ast-literal "2"))))
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;; ── report ────────────────────────────────────────────────────────
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(go-parse-test
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"bin: left-assoc a + b + c"
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(go-parse "a + b + c")
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(ast-app
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(ast-var "+")
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(list
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(ast-app (ast-var "+") (list (ast-var "a") (ast-var "b")))
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(ast-var "c"))))
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(go-parse-test
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"bin: * tighter than + → a + b * c"
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(go-parse "a + b * c")
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(ast-app
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(ast-var "+")
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(list
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(ast-var "a")
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(ast-app (ast-var "*") (list (ast-var "b") (ast-var "c"))))))
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(go-parse-test
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"bin: * tighter than + → a * b + c"
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(go-parse "a * b + c")
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(ast-app
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(ast-var "+")
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(list
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(ast-app (ast-var "*") (list (ast-var "a") (ast-var "b")))
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(ast-var "c"))))
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(go-parse-test
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"bin: && tighter than || → a || b && c"
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(go-parse "a || b && c")
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(ast-app
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(ast-var "||")
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(list
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(ast-var "a")
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(ast-app (ast-var "&&") (list (ast-var "b") (ast-var "c"))))))
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(go-parse-test
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"bin: comparison tighter than &&"
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(go-parse "a == b && c < d")
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(ast-app
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(ast-var "&&")
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(list
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(ast-app (ast-var "==") (list (ast-var "a") (ast-var "b")))
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(ast-app (ast-var "<") (list (ast-var "c") (ast-var "d"))))))
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(go-parse-test
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"bin: long left-assoc chain a + b - c + d"
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(go-parse "a + b - c + d")
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(ast-app
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(ast-var "+")
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(list
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(ast-app
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(ast-var "-")
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(list
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(ast-app (ast-var "+") (list (ast-var "a") (ast-var "b")))
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(ast-var "c")))
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(ast-var "d"))))
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(go-parse-test
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"bin: equal-prec left-assoc — a | b ^ c → (a | b) ^ c"
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(go-parse "a | b ^ c")
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(ast-app
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(ast-var "^")
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(list
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(ast-app (ast-var "|") (list (ast-var "a") (ast-var "b")))
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(ast-var "c"))))
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(go-parse-test
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"unary: -a"
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(go-parse "-a")
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(ast-app (ast-var "-") (list (ast-var "a"))))
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(go-parse-test
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"unary: +a"
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(go-parse "+a")
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(ast-app (ast-var "+") (list (ast-var "a"))))
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(go-parse-test
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"unary: !x"
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(go-parse "!x")
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(ast-app (ast-var "!") (list (ast-var "x"))))
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(go-parse-test
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"unary: ^x (bitwise NOT)"
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(go-parse "^x")
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(ast-app (ast-var "^") (list (ast-var "x"))))
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(go-parse-test
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"unary: *p (pointer deref)"
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(go-parse "*p")
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(ast-app (ast-var "*") (list (ast-var "p"))))
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(go-parse-test
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"unary: &v (address-of)"
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(go-parse "&v")
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(ast-app (ast-var "&") (list (ast-var "v"))))
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(go-parse-test
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"unary: <-ch (channel recv)"
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(go-parse "<-ch")
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(ast-app (ast-var "<-") (list (ast-var "ch"))))
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(go-parse-test
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"unary: -1 (on literal)"
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(go-parse "-1")
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(ast-app (ast-var "-") (list (ast-literal "1"))))
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(go-parse-test
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"unary: !!x (chained, right-recursive)"
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(go-parse "!!x")
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(ast-app
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(ast-var "!")
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(list (ast-app (ast-var "!") (list (ast-var "x"))))))
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(go-parse-test
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"unary: -a + b → ((-a) + b) — unary tighter than binary"
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(go-parse "-a + b")
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(ast-app
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(ast-var "+")
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(list (ast-app (ast-var "-") (list (ast-var "a"))) (ast-var "b"))))
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(go-parse-test
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"unary: a + -b → unary applies to RHS"
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(go-parse "a + -b")
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(ast-app
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(ast-var "+")
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(list (ast-var "a") (ast-app (ast-var "-") (list (ast-var "b"))))))
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(go-parse-test
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"call: f() (no args)"
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(go-parse "f()")
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(ast-app (ast-var "f") (list)))
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(go-parse-test
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"call: f(x)"
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(go-parse "f(x)")
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(ast-app (ast-var "f") (list (ast-var "x"))))
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(go-parse-test
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"call: f(x, y, z)"
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(go-parse "f(x, y, z)")
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(ast-app (ast-var "f") (list (ast-var "x") (ast-var "y") (ast-var "z"))))
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(go-parse-test
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"call: f(1, 2)"
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(go-parse "f(1, 2)")
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(ast-app (ast-var "f") (list (ast-literal "1") (ast-literal "2"))))
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(go-parse-test
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"call: f(a + b) — arg can be a binary expr"
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(go-parse "f(a + b)")
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(ast-app
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(ast-var "f")
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(list (ast-app (ast-var "+") (list (ast-var "a") (ast-var "b"))))))
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(go-parse-test
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"call: f(g(x)) — nested"
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(go-parse "f(g(x))")
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(ast-app
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(ast-var "f")
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(list (ast-app (ast-var "g") (list (ast-var "x"))))))
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(go-parse-test
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"select: x.y"
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(go-parse "x.y")
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(list :select (ast-var "x") "y"))
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(go-parse-test
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"select: x.y.z (chained left-assoc)"
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(go-parse "x.y.z")
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(list :select (list :select (ast-var "x") "y") "z"))
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(go-parse-test
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"method: obj.method()"
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(go-parse "obj.method()")
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(ast-app (list :select (ast-var "obj") "method") (list)))
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(go-parse-test
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"method: obj.method(x, y)"
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(go-parse "obj.method(x, y)")
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(ast-app
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(list :select (ast-var "obj") "method")
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(list (ast-var "x") (ast-var "y"))))
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(go-parse-test
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"postfix: -f(x) → unary applies after call"
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(go-parse "-f(x)")
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(ast-app
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(ast-var "-")
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(list (ast-app (ast-var "f") (list (ast-var "x"))))))
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(go-parse-test
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"postfix: f(x) + 1 → call binds tighter than binary +"
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(go-parse "f(x) + 1")
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(ast-app
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(ast-var "+")
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(list (ast-app (ast-var "f") (list (ast-var "x"))) (ast-literal "1"))))
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(go-parse-test
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"index: a[0]"
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(go-parse "a[0]")
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(list :index (ast-var "a") (ast-literal "0")))
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(go-parse-test
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"index: a[i]"
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(go-parse "a[i]")
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(list :index (ast-var "a") (ast-var "i")))
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(go-parse-test
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"index: a[i + 1] (expr index)"
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(go-parse "a[i + 1]")
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(list
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:index (ast-var "a")
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(ast-app (ast-var "+") (list (ast-var "i") (ast-literal "1")))))
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(go-parse-test
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"index: m[\"key\"] (string index)"
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(go-parse "m[\"key\"]")
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(list :index (ast-var "m") (ast-literal "key")))
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(go-parse-test
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"index: a[0][1] (chained)"
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(go-parse "a[0][1]")
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(list
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:index (list :index (ast-var "a") (ast-literal "0"))
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(ast-literal "1")))
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(go-parse-test
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"index: a[0].field (mixed with selector)"
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(go-parse "a[0].field")
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(list :select (list :index (ast-var "a") (ast-literal "0")) "field"))
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(go-parse-test
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"slice: a[:]"
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(go-parse "a[:]")
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(list :slice (ast-var "a") nil nil nil))
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(go-parse-test
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"slice: a[1:]"
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(go-parse "a[1:]")
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(list :slice (ast-var "a") (ast-literal "1") nil nil))
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(go-parse-test
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"slice: a[:2]"
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(go-parse "a[:2]")
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(list :slice (ast-var "a") nil (ast-literal "2") nil))
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(go-parse-test
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"slice: a[1:2]"
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(go-parse "a[1:2]")
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(list :slice (ast-var "a") (ast-literal "1") (ast-literal "2") nil))
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(go-parse-test
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"slice: a[1:2:3] (full slice)"
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(go-parse "a[1:2:3]")
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(list
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:slice (ast-var "a")
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(ast-literal "1")
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(ast-literal "2")
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(ast-literal "3")))
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(go-parse-test
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"slice: a[i:j] (var bounds)"
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(go-parse "a[i:j]")
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(list :slice (ast-var "a") (ast-var "i") (ast-var "j") nil))
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(go-parse-test
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"assert: v.(int)"
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(go-parse "v.(int)")
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(list :assert (ast-var "v") (list :ty-name "int")))
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(go-parse-test
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"assert: v.(string)"
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(go-parse "v.(string)")
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(list :assert (ast-var "v") (list :ty-name "string")))
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(go-parse-test
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"assert: v.(MyType) (user-defined)"
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(go-parse "v.(MyType)")
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(list :assert (ast-var "v") (list :ty-name "MyType")))
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(go-parse-test
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"assert: v.(*T) (pointer type)"
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(go-parse "v.(*T)")
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(list :assert (ast-var "v") (list :ty-ptr (list :ty-name "T"))))
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(go-parse-test
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"assert: v.(**T) (pointer-to-pointer)"
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(go-parse "v.(**T)")
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(list
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:assert (ast-var "v")
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(list :ty-ptr (list :ty-ptr (list :ty-name "T")))))
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(go-parse-test
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"assert: v.(pkg.T) (qualified type)"
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(go-parse "v.(pkg.T)")
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(list :assert (ast-var "v") (list :ty-sel "pkg" "T")))
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(go-parse-test
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"assert: f().(int) (on call result)"
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(go-parse "f().(int)")
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(list :assert (ast-app (ast-var "f") (list)) (list :ty-name "int")))
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(go-parse-test
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"assert: obj.field.(int) (after selector)"
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(go-parse "obj.field.(int)")
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(list
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:assert (list :select (ast-var "obj") "field")
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(list :ty-name "int")))
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(go-parse-test
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"assert: v.(int) + 1 (assert binds tighter than binary +)"
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(go-parse "v.(int) + 1")
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(ast-app
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(ast-var "+")
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(list
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(list :assert (ast-var "v") (list :ty-name "int"))
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(ast-literal "1"))))
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(go-parse-test
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"ty: []int (slice)"
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(go-parse "v.([]int)")
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(list :assert (ast-var "v") (list :ty-slice (list :ty-name "int"))))
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(go-parse-test
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"ty: [10]int (array)"
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(go-parse "v.([10]int)")
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(list
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:assert (ast-var "v")
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(list :ty-array (ast-literal "10") (list :ty-name "int"))))
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(go-parse-test
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"ty: map[string]int"
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(go-parse "v.(map[string]int)")
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(list
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:assert (ast-var "v")
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(list :ty-map (list :ty-name "string") (list :ty-name "int"))))
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(go-parse-test
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"ty: chan int (bidirectional)"
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(go-parse "v.(chan int)")
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(list :assert (ast-var "v") (list :ty-chan :both (list :ty-name "int"))))
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(go-parse-test
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"ty: chan<- int (send-only)"
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(go-parse "v.(chan<- int)")
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(list :assert (ast-var "v") (list :ty-chan :send (list :ty-name "int"))))
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(go-parse-test
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"ty: <-chan int (recv-only)"
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(go-parse "v.(<-chan int)")
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(list :assert (ast-var "v") (list :ty-chan :recv (list :ty-name "int"))))
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(go-parse-test
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"ty: []*T (slice of pointers)"
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(go-parse "v.([]*T)")
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(list
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:assert (ast-var "v")
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(list :ty-slice (list :ty-ptr (list :ty-name "T")))))
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(go-parse-test
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"ty: [][]int (slice of slice)"
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(go-parse "v.([][]int)")
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(list
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:assert (ast-var "v")
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(list :ty-slice (list :ty-slice (list :ty-name "int")))))
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(go-parse-test
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"ty: map[string][]int (map with slice value)"
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(go-parse "v.(map[string][]int)")
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(list
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:assert (ast-var "v")
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(list
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:ty-map (list :ty-name "string")
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(list :ty-slice (list :ty-name "int")))))
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(go-parse-test
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"ty: chan map[K]V (chan of map type)"
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(go-parse "v.(chan map[K]V)")
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(list
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:assert (ast-var "v")
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(list
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:ty-chan :both
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(list :ty-map (list :ty-name "K") (list :ty-name "V")))))
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(go-parse-test
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"ty: *[]int (pointer to slice)"
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(go-parse "v.(*[]int)")
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(list
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:assert (ast-var "v")
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(list :ty-ptr (list :ty-slice (list :ty-name "int")))))
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(go-parse-test
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"ty: func() (no params, no return)"
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(go-parse "v.(func())")
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(list :assert (ast-var "v") (list :ty-func (list) (list))))
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(go-parse-test
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"ty: func() int (no params, one return)"
|
|
(go-parse "v.(func() int)")
|
|
(list
|
|
:assert (ast-var "v")
|
|
(list :ty-func (list) (list (list :ty-name "int")))))
|
|
|
|
(go-parse-test
|
|
"ty: func(int)"
|
|
(go-parse "v.(func(int))")
|
|
(list
|
|
:assert (ast-var "v")
|
|
(list :ty-func (list (list :ty-name "int")) (list))))
|
|
|
|
(go-parse-test
|
|
"ty: func(int, string)"
|
|
(go-parse "v.(func(int, string))")
|
|
(list
|
|
:assert (ast-var "v")
|
|
(list
|
|
:ty-func (list (list :ty-name "int") (list :ty-name "string"))
|
|
(list))))
|
|
|
|
(go-parse-test
|
|
"ty: func(int) string"
|
|
(go-parse "v.(func(int) string)")
|
|
(list
|
|
:assert (ast-var "v")
|
|
(list
|
|
:ty-func (list (list :ty-name "int"))
|
|
(list (list :ty-name "string")))))
|
|
|
|
(go-parse-test
|
|
"ty: func() (int, error) (multi return)"
|
|
(go-parse "v.(func() (int, error))")
|
|
(list
|
|
:assert (ast-var "v")
|
|
(list
|
|
:ty-func (list)
|
|
(list (list :ty-name "int") (list :ty-name "error")))))
|
|
|
|
(go-parse-test
|
|
"ty: func(*T) []int (pointer param, slice return)"
|
|
(go-parse "v.(func(*T) []int)")
|
|
(list
|
|
:assert (ast-var "v")
|
|
(list
|
|
:ty-func (list (list :ty-ptr (list :ty-name "T")))
|
|
(list (list :ty-slice (list :ty-name "int"))))))
|
|
|
|
(go-parse-test
|
|
"ty: func() func() (nested func type as return)"
|
|
(go-parse "v.(func() func())")
|
|
(list
|
|
:assert (ast-var "v")
|
|
(list :ty-func (list) (list (list :ty-func (list) (list))))))
|
|
|
|
(go-parse-test
|
|
"ty: chan func() int (chan of func type)"
|
|
(go-parse "v.(chan func() int)")
|
|
(list
|
|
:assert (ast-var "v")
|
|
(list
|
|
:ty-chan :both
|
|
(list :ty-func (list) (list (list :ty-name "int"))))))
|
|
|
|
(go-parse-test
|
|
"ty: struct {} (empty)"
|
|
(go-parse "v.(struct {})")
|
|
(list :assert (ast-var "v") (list :ty-struct (list))))
|
|
|
|
(go-parse-test
|
|
"ty: struct { x int }"
|
|
(go-parse "v.(struct { x int })")
|
|
(list
|
|
:assert (ast-var "v")
|
|
(list :ty-struct (list (list :field (list "x") (list :ty-name "int"))))))
|
|
|
|
(go-parse-test
|
|
"ty: struct { x int; y string } (multiple fields)"
|
|
(go-parse "v.(struct { x int; y string })")
|
|
(list
|
|
:assert (ast-var "v")
|
|
(list
|
|
:ty-struct (list
|
|
(list :field (list "x") (list :ty-name "int"))
|
|
(list :field (list "y") (list :ty-name "string"))))))
|
|
|
|
(go-parse-test
|
|
"ty: struct { x, y int } (shared type)"
|
|
(go-parse "v.(struct { x, y int })")
|
|
(list
|
|
:assert (ast-var "v")
|
|
(list
|
|
:ty-struct (list (list :field (list "x" "y") (list :ty-name "int"))))))
|
|
|
|
(go-parse-test
|
|
"ty: struct { p *T } (pointer field)"
|
|
(go-parse "v.(struct { p *T })")
|
|
(list
|
|
:assert (ast-var "v")
|
|
(list
|
|
:ty-struct (list (list :field (list "p") (list :ty-ptr (list :ty-name "T")))))))
|
|
|
|
(go-parse-test
|
|
"ty: struct { items []int } (slice field)"
|
|
(go-parse "v.(struct { items []int })")
|
|
(list
|
|
:assert (ast-var "v")
|
|
(list
|
|
:ty-struct (list
|
|
(list :field (list "items") (list :ty-slice (list :ty-name "int")))))))
|
|
|
|
(go-parse-test
|
|
"ty: struct { a int; b, c string; d *T } (mixed)"
|
|
(go-parse "v.(struct { a int; b, c string; d *T })")
|
|
(list
|
|
:assert (ast-var "v")
|
|
(list
|
|
:ty-struct (list
|
|
(list :field (list "a") (list :ty-name "int"))
|
|
(list :field (list "b" "c") (list :ty-name "string"))
|
|
(list :field (list "d") (list :ty-ptr (list :ty-name "T")))))))
|
|
|
|
(go-parse-test
|
|
"ty: nested struct { inner struct { x int } }"
|
|
(go-parse "v.(struct { inner struct { x int } })")
|
|
(list
|
|
:assert (ast-var "v")
|
|
(list
|
|
:ty-struct (list
|
|
(list
|
|
:field (list "inner")
|
|
(list
|
|
:ty-struct (list (list :field (list "x") (list :ty-name "int")))))))))
|
|
|
|
(go-parse-test
|
|
"ty: interface {} (empty)"
|
|
(go-parse "v.(interface {})")
|
|
(list :assert (ast-var "v") (list :ty-interface (list))))
|
|
|
|
(go-parse-test
|
|
"ty: interface { Close() } (single method, no params, no return)"
|
|
(go-parse "v.(interface { Close() })")
|
|
(list
|
|
:assert (ast-var "v")
|
|
(list :ty-interface (list (list :method "Close" (list) (list))))))
|
|
|
|
(go-parse-test
|
|
"ty: interface { String() string } (single return)"
|
|
(go-parse "v.(interface { String() string })")
|
|
(list
|
|
:assert (ast-var "v")
|
|
(list
|
|
:ty-interface (list (list :method "String" (list) (list (list :ty-name "string")))))))
|
|
|
|
(go-parse-test
|
|
"ty: interface { Read([]byte) (int, error) } (multi return)"
|
|
(go-parse "v.(interface { Read([]byte) (int, error) })")
|
|
(list
|
|
:assert (ast-var "v")
|
|
(list
|
|
:ty-interface (list
|
|
(list
|
|
:method "Read"
|
|
(list (list :ty-slice (list :ty-name "byte")))
|
|
(list (list :ty-name "int") (list :ty-name "error")))))))
|
|
|
|
(go-parse-test
|
|
"ty: interface { Stringer } (embedded interface)"
|
|
(go-parse "v.(interface { Stringer })")
|
|
(list
|
|
:assert (ast-var "v")
|
|
(list :ty-interface (list (list :embed (list :ty-name "Stringer"))))))
|
|
|
|
(go-parse-test
|
|
"ty: interface { io.Reader } (qualified embedded)"
|
|
(go-parse "v.(interface { io.Reader })")
|
|
(list
|
|
:assert (ast-var "v")
|
|
(list :ty-interface (list (list :embed (list :ty-sel "io" "Reader"))))))
|
|
|
|
(go-parse-test
|
|
"ty: interface with embed + methods (io.ReadWriter style)"
|
|
(go-parse "v.(interface { io.Reader; Close() error })")
|
|
(list
|
|
:assert (ast-var "v")
|
|
(list
|
|
:ty-interface (list
|
|
(list :embed (list :ty-sel "io" "Reader"))
|
|
(list :method "Close" (list) (list (list :ty-name "error")))))))
|
|
|
|
(go-parse-test
|
|
"ty: interface with multiple methods"
|
|
(go-parse "v.(interface { Read([]byte) int; Write([]byte) int; Close() })")
|
|
(list
|
|
:assert (ast-var "v")
|
|
(list
|
|
:ty-interface (list
|
|
(list
|
|
:method "Read"
|
|
(list (list :ty-slice (list :ty-name "byte")))
|
|
(list (list :ty-name "int")))
|
|
(list
|
|
:method "Write"
|
|
(list (list :ty-slice (list :ty-name "byte")))
|
|
(list (list :ty-name "int")))
|
|
(list :method "Close" (list) (list))))))
|
|
|
|
(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))
|