Files
sx/examples/1346-ffi-objc-dsl-06-selector-override.sx
agra 4e942b5373 test: migrate examples to XXXX-category-name layout + split expected streams
Rename all example tests/companions to the XXXX-category-test-name scheme
(per-category 100-blocks: basic 0010, types 0100, ... errors 1000,
diagnostics 1100, ffi 1200, ffi-objc 1300, ffi-jni 1400, vectors 1500,
platform 1600). Companions and dir/C fixtures move in lockstep with their
parent test; #import/#source/#include paths rewritten to match.

Expected output now lives in examples/expected/ (a sibling dir of the
tests) split into three streams per the new convention:
  <name>.exit / <name>.stdout / <name>.stderr  (+ optional <name>.ir)

run_examples.sh rewritten: scans examples/ and issues/ for an
expected/<name>.exit marker, captures stdout and stderr separately (no
more 2>&1), compares each stream + exit + optional IR snapshot.

Behavior validated unchanged: every renamed test reproduces its prior
merged output + exit (diffs limited to file paths/basenames embedded in
diagnostics + traces, which correctly reflect the new names). Suite:
292 passed, 0 failed. 50-smoke.sx split + issue relocation + docs follow
in subsequent commits.
2026-06-01 19:05:15 +03:00

42 lines
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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/compiler.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 :: () -> s32 {
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;
}