// Phase 1 step 1.4 (PLAN-FFI.md): multiple `#objc_call` sites
// with the same selector. Today (after 1.3) each site emits its
// own `call @sel_registerName(<"init">)`; the actual SEL handle
// is recomputed per call.
//
// 1.5 lands selector interning: one static `SEL` global per
// unique selector string (named `OBJC_SELECTOR_REFERENCES_init`,
// matching clang's convention) populated once via the runtime
// at module init. Per call site becomes a single load.
//
// Runtime behavior is unchanged before vs. after 1.5; the
// improvement is visible in `sx ir` only. The IR snapshot at
// `tests/expected/ffi-objc-call-03-selector-sharing.ir` locks
// in today's shape (4 `call ptr @sel_registerName` instructions,
// one per call site). After 1.5 lands selector interning, the
// snapshot updates to ≤2 (one per unique selector string) plus
// a static `@OBJC_SELECTOR_REFERENCES_<sel>` global and loads at
// the call sites.

#import "modules/std.sx";
#import "modules/build.sx";

main :: () -> i32 {
    inline if OS == .macos {
        // Three calls, same selector, same nil receiver. Today these
        // emit three `sel_registerName("init")` calls. After 1.5 the
        // emit collapses to one (cached SEL global).
        #objc_call(void)(null, "init");
        #objc_call(void)(null, "init");
        #objc_call(void)(null, "init");

        // A different selector — should remain distinct after 1.5
        // (one cached SEL per unique string, not per call site).
        #objc_call(void)(null, "release");

        print("ok\n");
    }
    inline if OS != .macos {
        print("skipped (not macos)\n");
    }
    0
}