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
1.0 KiB
Plaintext
29 lines
1.0 KiB
Plaintext
// Obj-C runtime FFI smoke test: round-trip a string through NSString.
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//
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// Demonstrates the typed-fn-pointer cast idiom for `objc_msgSend`. Each
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// shape we invoke gets its own variable typed with the exact ABI:
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//
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// msg_3 : (*void, *void, [*]u8) -> *void = xx objc_msgSend;
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// msg_2 : (*void, *void) -> [*]u8 = xx objc_msgSend;
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//
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// On ARM64 Apple, objc_msgSend doesn't take a varargs path — invoking it
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// through a typed fn-pointer is the only correct way to land args in the
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// right registers.
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#import "modules/std.sx";
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#import "modules/ffi/objc.sx";
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main :: () -> i32 {
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ns_class := objc_getClass("NSString".ptr);
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sel_with_utf8 := sel_registerName("stringWithUTF8String:".ptr);
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sel_utf8 := sel_registerName("UTF8String".ptr);
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msg_3 : (*void, *void, [*]u8) -> *void callconv(.c) = xx objc_msgSend;
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ns_str := msg_3(ns_class, sel_with_utf8, "hi".ptr);
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msg_2 : (*void, *void) -> [*]u8 callconv(.c) = xx objc_msgSend;
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back := msg_2(ns_str, sel_utf8);
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return xx (back[0] + back[1]); // 'h' + 'i' = 104 + 105 = 209
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}
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