sx/examples/1345-ffi-objc-dsl-05-static.sx

// Phase 3 step 3.1 (PLAN-FFI.md): static call `Cls.class_method(args)`
// on an `#objc_class` alias lowers to `objc_msg_send` against the class
// object (loaded once per module via `objc_getClass` and cached). The
// selector is derived by the same default mangling as Phase 3.0
// (`stringWithUTF8String_(s)` → "stringWithUTF8String:").
//
// Mirrors JNI's static-dispatch surface (`Alias.new(...)` etc.); the
// lowering disambiguates static vs instance by looking at
// `method.is_static` on the foreign-class member.
//
// Uses NSObject because the cached class slot is populated by a
// constructor at module-load — runtime-created test classes wouldn't
// exist yet when `objc_getClass` runs. NSObject is always available
// on macOS via libobjc.
#import "modules/std.sx";
#import "modules/build.sx";

NSObject :: #objc_class("NSObject") extern {
    // `+(Class)class` — niladic, name verbatim, selector = "class".
    // Returns the class object itself. No `self: *Self` first param ⇒
    // class method (sx parser keys on the param TYPE).
    class :: () -> *void;
    // `+(NSString *)description` on the class returns a description
    // string. Niladic, selector = "description".
    description :: () -> *void;
}

main :: () -> i32 {
    inline if OS == .macos {
        c := NSObject.class();
        if c != null {
            print("class non-null\n");
        }
        d := NSObject.description();
        if d != null {
            print("description non-null\n");
        }
    }
    inline if OS != .macos {
        print("skipped (not macos)\n");
    }
    0
}