Files
sx/examples/0813-modules-same-name-error-set-lambda-own-wins.sx
agra d8076b9333 lang: rename signed integer types sN -> iN
Surface rename of the signed integer family: s1..s64 become i1..i64
(u1..u64, usize, isize unchanged). 'string' keeps the s-prefix arm in
name classification; width parsing moves to the i-prefix arm next to
isize.

Internal TypeId tags follow the surface (.s8/.s16/.s32/.s64 ->
.i8/.i16/.i32/.i64), as do mono-key mangle fragments (ptr_i64,
tu_i64_bool) and all display/diagnostic formatting (i{d}).

Migrated in the same sweep: stdlib + examples + issue repros + FFI C
companions (shared symbol names like ffi_id_i64), expected
stdout/stderr/ir snapshots, specs.md, readme.md, CLAUDE.md/AGENTS.md,
implementation_plan.md, docs/, issue writeups. Vendored stb_image and
historical flow state left untouched.

zig build test: 426/426; examples suite: 595/595.
2026-06-12 09:31:53 +03:00

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// E6b — own-wins for an ERROR-SET name in a CLOSURE-LITERAL return annotation
// (`closure(() -> !IoErr { … })`). `main` flat-imports `dep.sx` (which authors
// `IoErr { Net }`) AND authors its OWN `IoErr { Disk }`. The closure literal's
// `-> !IoErr` channel must resolve to `main`'s OWN author (own-wins), so the
// `raise error.Disk` inside the closure body validates against main's `{ Disk }`;
// meanwhile `dep_err` keeps dep's DISTINCT `IoErr { Net }`.
//
// Fail-before (attempt-1): `lowerLambda` resolved the explicit `lam.return_type`
// through the STATELESS `type_bridge.resolveAstType`, so the closure's `!IoErr`
// channel bound the global last-wins author (dep's `{ Net }`); `error.Disk` was
// then "not in error set 'IoErr'" and the program exited 1.
//
// Pass-after: the lambda return annotation routes through the source-aware
// `resolveTypeWithBindings` (same path as the regular function-return channel),
// main's own `IoErr` wins, `error.Disk` validates, exit 0.
#import "modules/std.sx";
#import "0813-modules-same-name-error-set-lambda-own-wins/dep.sx";
IoErr :: error { Disk }
main :: () -> i32 {
fail_own := closure(() -> !IoErr { raise error.Disk; });
fail_own() catch (e) {
if e == error.Disk { print("own=Disk\n"); }
};
d := dep_err();
print("dep={}\n", d);
return 0;
}