Files
sx/examples/0153-types-backtick-const-fn-decl.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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// Backtick raw-identifier escape at the `::` declaration sites: a leading
// backtick makes a CONSTANT name and a FUNCTION name raw, so a reserved type
// spelling (`i2`, `u8`) can be declared and used. Complements examples/0151
// (var / param / field / global). The backtick fn is callable both via the
// backtick (`` `u8(5) ``) and bare (`u8(5)`) — the bare reserved-name callee
// resolves to the raw fn because its declaration is raw (issue 0089). A *bare*
// `i2 :: …` / `u8 :: …` declaration is still the reserved-name error (see
// examples/1140).
// Regression (issue 0089).
#import "modules/std.sx";
// Constant whose name is a reserved type spelling.
`i2 :: 2.5;
// Function whose name is a reserved type spelling.
`u8 :: (n: i64) -> i64 { return n + 7; }
main :: () -> i32 {
print("const = {}\n", `i2);
print("fn tick = {}\n", `u8(5));
print("fn bare = {}\n", u8(5));
return 0;
}