// Copyright © SixtyFPS GmbH <info@slint.dev>
// SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-Slint-Royalty-free-2.0 OR LicenseRef-Slint-Software-3.0

Sub := Rectangle {
//  ^warning{':=' to declare a component is deprecated. The new syntax declare components with 'component MyComponent {'. Read the documentation for more info}
    callback compute(int) -> int;
    callback compute_alias <=> compute;
}

export Xxx := Rectangle {
//         ^warning{':=' to declare a component is deprecated. The new syntax declare components with 'component MyComponent {'. Read the documentation for more info}

    foo := Rectangle {
        callback hello(int) -> int;
    }

    callback colr <=> foo.background;
//  ^error{Binding to callback 'colr' must bind to another callback}
    property propr <=> foo.hello;
//  ^error{Could not infer type of property 'propr'}

    callback loop1 <=> loop2;
    callback loop3 <=> loop1;
//  ^error{Binding to callback 'loop3' must bind to another callback}
//                     ^^error{Unknown unqualified identifier 'loop1'}
    callback loop2 <=> loop3;

    Sub {
        compute_alias(a, b, c) => {
//      ^error{'compute-alias' only has 1 arguments, but 3 were provided}
            debug(b);
//                ^error{Unknown unqualified identifier 'b'}
            return "hello";
//          ^error{Cannot convert string to int}
        }

        callback x <=> compute_alias;
//               ^error{Cannot declare callback 'x' when a property with the same name exists}
    }
}