tree 0c7f9478b0b2fcc20f73b9823b1206055d8982ed
parent 58260a7f0a510638ccddbb7e3433517977254fc6
author Ben Konyi <bkonyi@google.com> 1768845430 -0500
committer GitHub <noreply@github.com> 1768845430 +0000
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[ Widget Preview ] Fix crash when `@Preview` annotations appeared outside of `lib/` (#180768)

The widget preview scaffold requires that previews are defined within
importable libraries. Since Dart does not support absolute paths for
imports or relative imports outside of the project, it's not possible
for the widget previewer to display previews defined outside of `lib/`.

This change updates the preview detector to ignore libraries that don't
have a package name (e.g., libraries under `test/`) and updates
`packageName` properties to not allow for null to make it clear that
package names are required for previews.

Fixes https://github.com/flutter/flutter/issues/178651