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Unified Diff: sdk/lib/async/stream_impl.dart

Issue 839323003: Implementation of async-await transformation on js ast. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Implement new ssa-nodes in ssa-tracer. Created 5 years, 11 months ago
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Index: sdk/lib/async/stream_impl.dart
diff --git a/sdk/lib/async/stream_impl.dart b/sdk/lib/async/stream_impl.dart
index 394e1c6a7c72b51b25fc7df35554941a94e2e2e5..eef9660404d6261e713bc8424eef0a4d01de0958 100644
--- a/sdk/lib/async/stream_impl.dart
+++ b/sdk/lib/async/stream_impl.dart
@@ -1036,7 +1036,10 @@ class _StreamIteratorImpl<T> implements StreamIterator<T> {
} else {
_clear();
}
- return subscription.cancel();
+ // If the stream is done, the subscription will have been cleared.
+ return subscription == null
+ ? new _Future<Null>.immediate(null)
floitsch 2015/02/02 22:00:12 This does not belong into this CL. Create a new C
sigurdm 2015/02/03 16:59:33 Ok.
+ : subscription.cancel();
}
void _onData(T data) {

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