Robert Nystrom
d4154ac6dc
Change-Id: Iad2963c7f9c184b089dc6d15aa4442f58d194bc2 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/151983 Reviewed-by: Nicholas Shahan <nshahan@google.com> Commit-Queue: Bob Nystrom <rnystrom@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com>
34 lines
828 B
Dart
34 lines
828 B
Dart
// Copyright (c) 2012, 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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import "package:expect/expect.dart";
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main() {
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testOne();
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testTwo();
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}
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testOne() {
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// Dart2JS uses t[0-9]* to declare temporaries, so a local variable
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// with that pattern can conflict with them.
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var t0 = [];
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// By using 'is' check, we make sure 't0.length' does not become
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// generate at use site.
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Expect.isTrue(t0.length is int);
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Expect.isTrue(t0 is List);
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}
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testTwo() {
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var x = [];
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var x_0 = [];
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{
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// This used to introduce x_0.
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var x = new Set();
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Expect.equals(0, x.length);
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Expect.isTrue(x.isEmpty);
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}
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Expect.isTrue(x is List);
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Expect.isTrue(x_0 is List);
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}
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