Robert Nystrom
ba40d9bece
Change-Id: I73edeeaf4934899b71d6335dcb4b4b54dce46bae Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/426340 Auto-Submit: Bob Nystrom <rnystrom@google.com> Reviewed-by: Nate Biggs <natebiggs@google.com> Commit-Queue: Nate Biggs <natebiggs@google.com>
45 lines
962 B
Dart
45 lines
962 B
Dart
// Copyright (c) 2015, 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 'native_testing.dart';
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// Negative constant numbers must be generated as negation, not just a literal
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// with a sign, i.e.
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//
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// (-5).toString()
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//
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// not
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//
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// -5 .toString()
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//
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// The unparenthesized version is `-(5 .toString())`, which creates the string
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// `"5"`, then converts it to a number for negation, giving a number result
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// instead of a string result.
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@pragma('dart2js:noInline')
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checkString(r) {
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Expect.isTrue(
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r is String,
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'Expected string, found ${r} of type ${r.runtimeType}',
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);
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}
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test1() {
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checkString(JS('', '#.toString()', -5));
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}
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test2() {
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checkString(JS('', '#.toString()', -1.5));
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}
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test3() {
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checkString(JS('', '#.toString()', -0.0));
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}
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main() {
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test1();
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test2();
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test3();
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}
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