// Backfill for Phase 1D cluster 1.32 (PLAN-FFI.md): `#objc_call(CGRect)`
// and `#objc_call(u64)` against `class_addMethod`-registered IMPs.
// Both shapes were already exercised transitively in earlier work —
// CGRect is structurally a 4×f64 HFA (same as UIEdgeInsets from
// ffi-objc-call-07), and u64 is i64 at the LLVM level (same as the
// s64 return from ffi-objc-call-04's `hash`). The cluster-1.32
// migration of `uikit_keyboard_will_change_frame` was the first
// place we used both shapes through `#objc_call` directly, but the
// keyboard-change-frame callback isn't reached by the chess launch
// path, so this test gives the two shapes their own runtime lockdown.

#import "modules/std.sx";
#import "modules/compiler.sx";
#import "modules/std/objc.sx";

CGRect :: struct {
    x: f64;
    y: f64;
    width: f64;
    height: f64;
}

rect_imp :: (self: *void, _cmd: *void) -> CGRect callconv(.c) {
    CGRect.{ x = 10.5, y = 20.5, width = 30.5, height = 40.5 };
}

u64_imp :: (self: *void, _cmd: *void) -> u64 callconv(.c) {
    // sx integer-literal parser rejects values ≥ 2^63 even when the
    // receiving type is u64, so the leading bit stays clear.
    0x7FEDCBA987654321;
}

main :: () -> s32 {
    inline if OS == .macos {
        ns_object := objc_getClass("NSObject".ptr);
        my_cls := objc_allocateClassPair(ns_object, "SxRectU64Probe".ptr, 0);

        // CGRect type encoding: {CGRect={CGPoint=dd}{CGSize=dd}}@: for a
        // strict structural encoding, but the runtime accepts the
        // flattened `{CGRect=dddd}@:` form for IMP registration since
        // arm64 BOOL/struct returns route on the ABI shape, not on the
        // type-encoding's nested-struct structure.
        sel_rect := sel_registerName("rect".ptr);
        sel_uval := sel_registerName("uval".ptr);
        class_addMethod(my_cls, sel_rect, xx rect_imp, "{CGRect=dddd}@:".ptr);
        class_addMethod(my_cls, sel_uval, xx u64_imp,  "Q@:".ptr);
        objc_registerClassPair(my_cls);

        instance := class_createInstance(my_cls, 0);

        r := #objc_call(CGRect)(instance, "rect");
        print("rect = ({}, {}, {}, {})\n", r.x, r.y, r.width, r.height);

        u := #objc_call(u64)(instance, "uval");
        print("uval = {}\n", u);
    }
    inline if OS != .macos {
        print("skipped (not macos)\n");
    }
    0;
}