d8076b9333
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.
29 lines
1.1 KiB
Plaintext
29 lines
1.1 KiB
Plaintext
// Generic `Into(Block)` impl with a `string`-typed arg in the
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// closure signature. The block trampoline declares the param with
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// callconv(.c); without the abi-collapse fix, sx `string` got
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// silently collapsed to `ptr` (the libc `char *` heuristic) and
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// the caller's 16-byte `{ptr, len}` value mismatched the
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// trampoline's 8-byte `ptr` slot. Result: segfault inside the
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// trampoline's first read.
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//
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// The fix lives in `abiCoerceParamTypeEx`: the `string`/`slice` →
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// `ptr` collapse only applies to `is_extern` foreign decls (libc
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// interop). sx-internal `callconv(.c)` keeps the full slice
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// shape, which lands as `[2 x i64]` at the LLVM signature site
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// and matches the caller's two-register pass on AArch64.
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#import "modules/std.sx";
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#import "modules/ffi/objc_block.sx";
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g_s: string = "";
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main :: () -> i32 {
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cl := (s: string) => { g_s = s; };
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b : Block = xx cl;
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invoke_fn : (*Block, string) -> void callconv(.c) = xx b.invoke;
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invoke_fn(@b, "hello");
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if g_s.len == 0 { print("FAIL: empty\n"); return 1; }
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print("got: <{}>\n", g_s);
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0
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}
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