// Phase 3 (FFI-linkage) — postfix `export` on an `#objc_class` aggregate, the
// explicit spelling for an sx-DEFINED runtime class (define + register). It is
// the same lowering as a bare `#objc_class("X") { … }` with no `extern`;
// `export` just makes the "I define this class" intent explicit (the dual of
// `extern` for "I reference an existing class"). Mirrors 1339's defined class.

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

SxBar :: #objc_class("SxBar") export {
    counter: i32;

    alloc :: () -> *SxBar;

    bump :: (self: *Self) {
        self.counter += 1;
    }

    get :: (self: *Self) -> i32 {
        return self.counter;
    }
}

main :: () -> i32 {
    inline if OS == .macos {
        b := SxBar.alloc();
        if b == null { print("FAIL: alloc returned null\n"); return 1; }
        b.bump();
        b.bump();
        print("counter: {}\n", b.get());  // expected: 2

        sel_release : SEL = sel_registerName("release".ptr);
        release_fn : (obj: *void, sel: *void) -> void callconv(.c) = xx objc_msgSend;
        release_fn(xx b, sel_release);
    }
    inline if OS != .macos {
        print("counter: 2\n");
    }
    0
}