// Phase 1 step 1.10 (PLAN-FFI.md): multi-keyword Obj-C selectors
// through `#objc_call`. Selector mangling matches clang's: every
// `:` in the source-level selector becomes a `_` in the symbol
// name of the cached SEL slot (so `initWithFrame:options:` →
// `OBJC_SELECTOR_REFERENCES_initWithFrame_options_`).
//
// The selector is opaque text to the lowering — no codegen change
// needed beyond Phase 1.6's variadic argument list. This test
// pins that the round-trip works end-to-end via class_addMethod
// + a real IMP that consumes both keyword args.

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

combine_imp :: (self: *void, _cmd: *void, a: i32, b: i32) -> i32 callconv(.c) {
    a * 100 + b
}

main :: () -> i32 {
    inline if OS == .macos {
        ns_object := objc_getClass("NSObject".ptr);
        my_cls := objc_allocateClassPair(ns_object, "SxComboProbe".ptr, 0);

        // Two-keyword selector: `combine:and:`.
        // Method type encoding: i@:ii → returns int, implicit (self, _cmd),
        // takes two ints. (`i` = int, `@` = id, `:` = SEL.)
        sel := sel_registerName("combine:and:".ptr);
        ok := class_addMethod(my_cls, sel, xx combine_imp, "i@:ii".ptr);
        print("addMethod = {}\n", ok);
        objc_registerClassPair(my_cls);

        instance := class_createInstance(my_cls, 0);
        r := #objc_call(i32)(instance, "combine:and:", 7, 42);
        print("combine(7, 42) = {}\n", r);
    }
    inline if OS != .macos {
        print("skipped (not macos)\n");
    }
    0
}