12e2ff7ef4
The compiler concept is declare/define (comptime type construction); the old "reify" framing is gone from the entire repo. - Rename: PLAN-REIFY → PLAN-METATYPE, CHECKPOINT-REIFY → CHECKPOINT-METATYPE, PLAN-POST-REIFY → PLAN-POST-METATYPE (both rewritten around declare/define); examples 0614/0615/0617 → comptime-metatype-* (+ their expected/ triplets), headers rewritten. - Scrub reify from design/execution-evolution-roadmap.md (§7 step 3 contracts, §8.1, §9 decisions, §10 gates) → declare/define / comptime type construction. - core.sx prelude pointer + parser.test.zig surface lock updated to the declare/define builtins (define(handle, info) -> Type; EnumInfo.name). No behavior change; renamed examples match their renamed snapshots. Full suite green (673), all unit tests pass. Zero `reify` tokens remain in src/docs/sx/examples.
39 lines
1.3 KiB
Plaintext
39 lines
1.3 KiB
Plaintext
// Comptime type construction — channel result types: RecvResult($T) /
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// TryResult($T), built ENTIRELY in sx library code as type-fns over the
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// `define(declare(), ...)` primitives (no compiler machinery). A blocking recv
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// yields a value or a `closed` marker; a non-blocking try-recv adds `empty` —
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// three states a bool can't express. This locks that they construct and match
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// like any enum, and that `RecvResult(i64)` is one nominal type across sites
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// (the type-fn identity path).
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#import "modules/std.sx";
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#import "modules/std/meta.sx";
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main :: () -> i32 {
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r := RecvResult(i64).value(42);
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if r == {
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case .value: (v) { print("recv value {}\n", v); }
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case .closed: { print("recv closed\n"); }
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}
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rc : RecvResult(i64) = .closed;
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if rc == {
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case .value: (v) { print("recv value {}\n", v); }
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case .closed: { print("recv closed\n"); }
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}
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t := TryResult(i64).value(7);
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if t == {
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case .value: (v) { print("try value {}\n", v); }
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case .empty: { print("try empty\n"); }
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case .closed: { print("try closed\n"); }
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}
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te : TryResult(i64) = .empty;
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if te == {
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case .value: (v) { print("try value {}\n", v); }
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case .empty: { print("try empty\n"); }
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case .closed: { print("try closed\n"); }
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}
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return 0;
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}
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