Files
sx/examples/0772-modules-qualified-generic-head-author.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

30 lines
1.4 KiB
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// A qualified generic type head `ns.Box(args)` must instantiate the template
// AUTHORED by `ns`'s module — not the global same-name template that happened to
// win the last-wins `struct_template_map`. `main` imports two namespaces that
// each author a same-name generic `Box($T)` with a DIFFERENT layout (a: one
// field, b: two fields). `a.Box(i64)` and `b.Box(i64)` must resolve to their OWN
// module's template (sizes 8 and 16) and be DISTINCT types, so a field unique to
// b's layout (`y`) is reachable only through `b.Box`.
//
// This is the ambiguity escape hatch made real: when a bare `Box(i64)` is
// ambiguous (two flat same-name authors), the diagnostic tells the user to
// "qualify the reference"; that advice only works if `ns.Box(..)` actually
// selects ns's author.
//
// Regression (Phase E4): before qualified generic-head selection, the head was
// stripped to the bare name and read from the global `struct_template_map`, so
// `a.Box(i64)` and `b.Box(i64)` both instantiated the last-wins template (both
// size 16) — the namespace qualifier was ignored.
#import "modules/std.sx";
a :: #import "0772-modules-qualified-generic-head-author/a.sx";
b :: #import "0772-modules-qualified-generic-head-author/b.sx";
main :: () -> i32 {
pa : a.Box(i64) = .{ x = 1 };
pb : b.Box(i64) = .{ x = 10, y = 20 };
print("a={} b={}\n", size_of(a.Box(i64)), size_of(b.Box(i64)));
print("pa.x={} pb.x={} pb.y={}\n", pa.x, pb.x, pb.y);
0
}