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lang: rename signed integer types sN -> iN

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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.
This commit is contained in:
agra
2026-06-12 09:31:53 +03:00
parent 515ecebea7
commit d8076b9333
1054 changed files with 6836 additions and 6839 deletions
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20
examples/1121-diagnostics-reserved-name-control-flow.sx
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@@ -1,7 +1,7 @@
// Reserved/builtin type names are rejected as binding NAMES across every
// control-flow and destructuring form, not just plain `var`/param decls: a
// destructure name (`s2`), an `if`/`while` optional binding (`u8`/`s16`), a
// `for` capture and index name (`bool`/`s32`), and a match-arm capture
// destructure name (`i2`), an `if`/`while` optional binding (`u8`/`i16`), a
// `for` capture and index name (`bool`/`i32`), and a match-arm capture
// (`string`). Each spelling parses as a `.type_expr`, so the address-of family
// in lowering mis-lowers it (a loaded aggregate passed by value to a `ptr`
// param → LLVM verifier abort). The declaration-site diagnostic comes from one
@@ -11,17 +11,17 @@
// offending name; exit 1 — NOT an LLVM verifier abort.
#import "modules/std.sx";
pair :: () -> (s64, s64) { (1, 2) }
maybe :: () -> ?s64 { return null; }
pair :: () -> (i64, i64) { (1, 2) }
maybe :: () -> ?i64 { return null; }
main :: () -> s32 {
s2, rest := pair(); // destructure name
main :: () -> i32 {
i2, rest := pair(); // destructure name
if u8 := maybe() { } // if optional binding
while s16 := maybe() { break; } // while optional binding
xs := [3]s64.{ 10, 20, 30 };
while i16 := maybe() { break; } // while optional binding
xs := [3]i64.{ 10, 20, 30 };
for xs (bool) { } // for capture name
for xs, 0.. (v, s32) { } // for index name
opt: ?s64 = 5;
for xs, 0.. (v, i32) { } // for index name
opt: ?i64 = 5;
r := if opt == { // match-arm capture
case .some: (string) { 0 }
case .none: { 0 }