extension_declares_abstract_member
Details about the 'extension_declares_abstract_member' diagnostic produced by the Dart analyzer.
Extensions can't declare abstract members.
Description
#The analyzer produces this diagnostic when an abstract declaration is declared in an extension. Extensions can declare only concrete members.
Example
#
The following code produces this diagnostic because the method a doesn't
have a body:
dart
extension E on String {
int a();
}
Common fixes
#Either provide an implementation for the member or remove it.
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除非另有说明，文档之所提及适用于 Dart 3.10.3 版本报告页面问题.