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feat(errors): preserve stack traces of user exceptions in Dart

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This commit is contained in:
Yegor Jbanov
2015-05-15 11:46:34 -07:00
parent 421d8916a6
commit b6f29b4448
3 changed files with 146 additions and 2 deletions
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10
modules/angular2/src/facade/async.dart
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@ -6,7 +6,9 @@ export 'dart:async' show Future, Stream, StreamController, StreamSubscription;
class PromiseWrapper {
static Future resolve(obj) => new Future.value(obj);
static Future reject(obj) => new Future.error(obj);
static Future reject(obj) => new Future.error(
obj,
obj is Error ? obj.stackTrace : null);
static Future<List> all(List<Future> promises) => Future.wait(promises);
@ -98,6 +100,10 @@ class _Completer {
}
void reject(v) {
c.completeError(v);
var stack = null;
if (v is Error) {
stack = v.stackTrace;
}
c.completeError(v, stack);
}
}