slint/internal/compiler/tests/syntax/analysis/binding_loop_text.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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// 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
export component Test {
Text { font-size: self.font-metrics.ascent; }
// ^error{The binding for the property 'font-metrics' is part of a binding loop (font-metrics -> font-size)}
// ^^error{The binding for the property 'font-size' is part of a binding loop (font-metrics -> font-size)}
t1 := Text { font-italic: t2.font-metrics.cap-height > 10px; }
// ^error{The binding for the property 'font-metrics' is part of a binding loop (t2.font-metrics -> t1.font-italic -> t1.font-metrics -> t2.font-weight)}
// ^^error{The binding for the property 'font-italic' is part of a binding loop (t2.font-metrics -> t1.font-italic -> t1.font-metrics -> t2.font-weight)}
t2 := Text { font-weight: t1.font-metrics.descent / 0.5px; }
// ^error{The binding for the property 'font-metrics' is part of a binding loop (t2.font-metrics -> t1.font-italic -> t1.font-metrics -> t2.font-weight)}
// ^^error{The binding for the property 'font-weight' is part of a binding loop (t2.font-metrics -> t1.font-italic -> t1.font-metrics -> t2.font-weight)}
}