Robert Nystrom
0906af6d2f
I also regenerated the static error expectations (see #57042 for context). Change-Id: Ia0ca22604a0dd422cc265a46845afc43f551fe38 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/394572 Commit-Queue: Lasse Nielsen <lrn@google.com> Reviewed-by: Lasse Nielsen <lrn@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com>
62 lines
1.5 KiB
Dart
62 lines
1.5 KiB
Dart
// Copyright (c) 2013, 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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// Formatting can break multitests, so don't format them.
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// dart format off
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// Basic test of Symbol class.
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main() {
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var x;
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print(x = const Symbol('fisk'));
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try {
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print(const Symbol(0)); //# 01: compile-time error
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} on NoSuchMethodError {
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print('Caught NoSuchMethodError');
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} on TypeError {
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print('Caught TypeError');
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}
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print(const Symbol('0'));
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print(const Symbol('_'));
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print(new Symbol('0'));
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print(new Symbol('_'));
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if (!identical(const Symbol('fisk'), x)) {
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throw 'Symbol constant is not canonicalized';
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}
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if (const Symbol('fisk') != x) {
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throw 'Symbol constant is not equal to itself';
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}
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if (const Symbol('fisk') != new Symbol('fisk')) {
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throw 'Symbol constant is not equal to its non-const equivalent';
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}
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if (new Symbol('fisk') != new Symbol('fisk')) {
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throw 'new Symbol is not equal to its equivalent';
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}
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if (new Symbol('fisk') == new Symbol('hest')) {
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throw 'unrelated Symbols are equal';
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}
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if (new Symbol('fisk') == new Object()) {
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throw 'unrelated objects are equal';
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}
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x.hashCode as int;
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new Symbol('fisk').hashCode as int;
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if (new Symbol('fisk').hashCode != x.hashCode) {
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throw "non-const Symbol's hashCode not equal to its const equivalent";
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}
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if (new Symbol('') != Symbol.empty) {
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throw 'empty Symbol not equals to itself';
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}
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}
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