Lasse R.H. Nielsen
eca6c8953f
Fixes #37063 Bug: http://dartbug.com/37063 Change-Id: I2253c3088fbe33eca1072f2480cf0cf3cc363362 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/103524 Reviewed-by: Brian Wilkerson <brianwilkerson@google.com> Reviewed-by: Leaf Petersen <leafp@google.com> Commit-Queue: Lasse R.H. Nielsen <lrn@google.com>
74 lines
2.0 KiB
Dart
74 lines
2.0 KiB
Dart
// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// The identifiers listed below are mentioned in the grammar, but none of
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// them is a reserved word or a built-in identifier. Such an identifier can
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// be used just like all other identifiers, with the exceptions mentioned
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// below. Here are said 'known' identifiers:
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//
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// `async`, `await`, `hide`, `of`, `on`, `show`, `sync`, `yield`
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//
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// The following exceptions apply:
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//
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// It is a compile-time error to use `async`, `await`, or `yield` as an
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// identifier in the body of a function marked `async`, `async*`, or
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// `sync*`.
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//
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// It is a compile-time error if an asynchronous for-in appears inside a
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// synchronous function.
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import 'dart:async';
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Future<int> f1() async {
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int async = 1;
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int await = 1; //# 02: syntax error
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int yield = 1; //# 03: syntax error
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Stream<int> s = new Stream<int>.fromFuture(new Future<int>.value(1));
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await for (int i in s) {
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return i + 1;
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}
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}
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Stream<int> f2() async* {
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int async = 1;
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int await = 1; //# 05: syntax error
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int yield = 1; //# 06: syntax error
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Stream<int> s = new Stream<int>.fromFuture(new Future<int>.value(1));
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await for (var i in s) {
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yield i + 1;
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}
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}
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Iterable<int> f3() sync* {
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int async = 1;
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int await = 1; //# 08: syntax error
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int yield = 1; //# 09: syntax error
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Stream<int> s = new Stream<int>.fromFuture(new Future<int>.value(1));
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await for (int i in s) { //# 10: compile-time error
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yield i + 1; //# 10: continued
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} //# 10: continued
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}
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int f4() {
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int async = 1;
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int await = 1;
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int yield = 1;
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Stream s = new Stream<int>.fromFuture(new Future<int>.value(1));
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await for (int i in s) { //# 11: compile-time error
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return i + 1; //# 11: continued
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} //# 11: continued
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}
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main() {
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Future<int> f = f1();
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Stream s = f2();
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Iterable<int> i = f3();
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int x = f4();
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}
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