slint/internal/compiler/tests/syntax/functions/functions_call.slint

// Copyright © SixtyFPS GmbH <info@slint-ui.com>
// SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-Slint-commercial



Comp := Rectangle {
    function f1() {}
    public function f2() {}
}

export Xxx := Rectangle {
    function foo(a: int) -> string { return a; }

    comp := Comp {}

    function bar() {
        foo(45, 45);
//      ^error{The callback or function expects 1 arguments, but 2 are provided}

        foo.hello(45);
//          ^error{Cannot access fields of a function}

        root.foo();
//      ^error{The callback or function expects 1 arguments, but 0 are provided}

        root.foo.hello(45);
        //       ^error{Cannot access fields of a function}

        comp.f1();
//           ^error{The function 'f1' is private. Annotate it with 'public' to make it accessible from other components}
        comp.f2();
    }

    callback xx <=> foo;
//  ^error{Binding to callback 'xx' must bind to another callback}
}