Files
sx/examples/0310-closures-closure-literal-in-defer.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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// Closure literal declared (and used) inside a `defer` body.
//
// Regression (issue 0073): this used to segfault lowering. A lambda inherited
// the enclosing function's `func_defer_base`, so the lambda's `return` re-drained
// the enclosing function's defers — and when the defer body itself declared the
// lambda, that re-lowered the lambda forever (infinite recursion). A lambda now
// opens its own defer window (like every other function-lowering entry).
#import "modules/std.sx";
run :: () {
defer {
cb := (n: i32) -> i32 { return n * 2; };
print("defer closure: {}\n", cb(21)); // 42, at scope exit
}
print("body\n");
}
main :: () -> i32 {
run();
return 0;
}