Files
sx/examples/0303-closures-closure-returning-protocol.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

29 lines
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// Closure whose return type is a (non-`#inline`) protocol value — exercises
// the indirect-call path where the result is a boxed protocol.
#import "modules/std.sx";
MyProtocol :: protocol {
get_value :: () -> i64;
}
MyImpl :: struct { value: i64; }
impl MyProtocol for MyImpl {
get_value :: (self: *MyImpl) -> i64 { self.value }
}
make_thing :: () -> MyProtocol {
MyImpl.{ value = 42 }
}
main :: () -> void {
// Direct call works:
v := make_thing();
out("direct call works\n");
// Closure call crashes:
c := closure(make_thing);
result := c();
out("closure call works\n");
}