Open
Description
Repro
- debug the following dart code
- set a breakpoint on
// Breakpoint here
line - step in once
- hover over
super.key
Expected: null
Actual: ChromeProxyService: Failed to evaluate expression 'super.key'
Dart code
class View extends SuperView {
View({super.key}); // Breakpoint here
}
abstract class SuperView {
const SuperView({this.key});
final String? key;
}
void main() {
final View view = View(); // Breakpoint here
print(view.key);
}
Expression compilation of super.key
creates following JS:
try {
(function() {
return super.key;
}.bind(this)(
));
} catch (error) {
error.name + ": " + error.message;
}
Detailed error from chrome proxy service
17:10:15.699 WARNING: ChromeProxyService: Failed to evaluate expression 'super.key'.
17:10:15.699 INFO: ChromeProxyService: Please follow instructions at https://github.com/dart-lang/webdev/issues/956 to file a bug.
17:10:15.700 INFO: ChromeProxyService: Unexpected error from chrome devtools:
text: Uncaught
exception:
preview: null
description: SyntaxError: 'super' keyword unexpected here
at new view.View.new
...
:#0 Debugger.evaluateJsOnCallFrame (package:dwds/src/debugging/debugger.dart:724:7)
<asynchronous suspension>
#1 StackZoneSpecification._registerUnaryCallback.<anonymous closure> (package:stack_trace/src/stack_zone_specification.dart:125:47)
<asynchronous suspension>