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restore nullability of FlutterError.onError (#61844)

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Alexandre Ardhuin 2020-07-20 18:45:04 +02:00 committed by GitHub
parent 5b9ce492f3
commit 3f79310204
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1 changed files with 8 additions and 3 deletions
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11
packages/flutter/lib/src/foundation/assertions.dart
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@ -868,7 +868,10 @@ class FlutterError extends Error with DiagnosticableTreeMixin implements Asserti
///
/// If the error handler throws an exception, it will not be caught by the
/// Flutter framework.
static FlutterExceptionHandler onError = (FlutterErrorDetails details) => presentError(details);
///
/// Set this to null to silently catch and ignore errors. This is not
/// recommended.
static FlutterExceptionHandler? onError = (FlutterErrorDetails details) => presentError(details);
/// Called by the Flutter framework before attempting to parse a [StackTrace].
///
@ -1078,11 +1081,13 @@ class FlutterError extends Error with DiagnosticableTreeMixin implements Asserti
return diagnostics.map((DiagnosticsNode node) => renderer.render(node).trimRight()).join('\n');
}
/// Calls [onError] with the given details.
/// Calls [onError] with the given details, unless it is null.
static void reportError(FlutterErrorDetails details) {
assert(details != null);
assert(details.exception != null);
onError(details);
if (onError != null) {
onError!(details);
}
}
}