Files
sx/examples/1346-ffi-objc-dsl-06-selector-override.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

42 lines
1.7 KiB
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// Phase 3 step 3.2 (PLAN-FFI.md): `#selector("explicit:string")`
// override on `#objc_class` members. Escape hatch for cases where the
// sx-side method name doesn't conveniently produce the target selector
// through the default mangling rule (Phase 3.0 — split on `_`, each
// piece becomes a keyword with a trailing `:`).
//
// Surface form mirrors `#jni_method_descriptor("(Sig)Ret")` — sits
// after the optional `-> ReturnType` and before the body / terminator.
//
// Pre-3.2: the parser doesn't know the `#selector` token; snapshot
// captures the parser error (exit=1). Next commit wires lexer + parser
// + AST + lowering and the snapshot flips to working output.
#import "modules/std.sx";
#import "modules/build.sx";
NSObject :: #foreign #objc_class("NSObject") {
// Default mangling would yield selector "gimme" — NSObject has no
// such IMP. The override pins it to the real selector
// "description". Static method (no `self: *Self` first param).
gimme :: () -> *void #selector("description");
}
// Instance-method override exercises a different lowering path
// (`lowerObjcMethodCall` rather than `lowerObjcStaticCall`). Parse-
// only on this side — main only invokes the static path because we
// don't have a real NSDictionary in scope, but the declaration locks
// in the parser + AST + lowering wiring for the multi-arg shape.
NSDictionary :: #foreign #objc_class("NSDictionary") {
lookup :: (self: *Self, key: *void) -> *void #selector("objectForKey:");
}
main :: () -> i32 {
inline if OS == .macos {
d := NSObject.gimme();
print("static override non-null: {}\n", d != null);
}
inline if OS != .macos {
print("skipped (not macos)\n");
}
0
}