slint/internal/compiler/tests/syntax/analysis/binding_loop_issue_772.slint
Olivier Goffart db18f4e2e5 Change the new error that detects binding loop through the window into a warning
In 80de96488a (#3397) we introduced a new
error if we detect a binding loop from the Window geomerty to its layout.
But it looks like this causes a lot of error in existing project, so
make it a warning instead.

It will continue to be an error in the live preview as this will cause a
panic otherwise.

This commit also change the text of the error to include the actual
binding loop. I hope this makes it easier for users to see the loop and
help to fix it.
2025-06-02 19:01:47 +02:00

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Text

// 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
Alias := Rectangle {
// ^warning{':=' to declare a component is deprecated. The new syntax declare components with 'component MyComponent {'. Read the documentation for more info}
property <int> viewport_width ;
property <int> ps_width <=> viewport_width;
}
export Foo := Rectangle {
// ^warning{':=' to declare a component is deprecated. The new syntax declare components with 'component MyComponent {'. Read the documentation for more info}
property <int> base-prop: alias.viewport_width;
// ^error{The binding for the property 'base-prop' is part of a binding loop (alias.ps-width -> root_window.base-prop)}
alias := Alias { ps_width: base-prop; }
// ^error{The binding for the property 'ps-width' is part of a binding loop (alias.ps-width -> root_window.base-prop)}
Text {
text: base-prop;
}
}