353109206b
REIFY Phase 0.2 (Phase 0 complete). Lowering.reifyType (lower/nominal.zig)
reads the flat-enum TypeInfo literal off the AST, synthesizes an
ast.EnumDecl, and feeds it through the SAME type_bridge.buildEnumInfo
path source enums use — so the minted type is byte-identical to a
hand-written `enum { value: i64; closed; }` and flows through enum
codegen (layout / construct / match) UNMODIFIED (Contract 2).
Wired at the `E :: reify(...)` const-decl hook in lower/decl.zig
(replacing the Phase-0.0 loud bail). Unsupported argument shapes bail
loudly via reifyBail — never a silent default. The generic.zig inline
reify path now reports it's only supported in a `::` binding (Phase 0).
examples/0614 green: reify a {value: i64, closed} enum, construct
.value(3) and .closed, match both -> "value 3" / "closed". Full suite
green (670 examples, 447 unit).
30 lines
920 B
Plaintext
30 lines
920 B
Plaintext
// REIFY Phase 0: mint a NEW nominal enum from a `TypeInfo` value at comptime,
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// then construct one of its variants and match on it — exercising that a
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// reify'd enum (with NO backing AST decl) flows through enum codegen unmodified
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// (layout / construct / match), Contract 2.
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//
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// The enum has two variants: `value` carrying an i64 payload, and `closed` with
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// no payload (`payload = void`).
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#import "modules/std.sx";
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#import "modules/std/meta.sx";
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E :: reify(.enum(.{ variants = .[
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EnumVariant.{ name = "value", payload = i64 },
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EnumVariant.{ name = "closed", payload = void },
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] }));
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main :: () -> i32 {
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e := E.value(3);
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if e == {
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case .value: (v) { print("value {}\n", v); }
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case .closed: { print("closed\n"); }
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}
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c : E = .closed;
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if c == {
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case .value: (v) { print("value {}\n", v); }
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case .closed: { print("closed\n"); }
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}
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return 0;
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}
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