Files
sdk/tests/compiler/dart2js/codegen/equals_test.dart
T
Stephen Adams 3e9f4e6792 dart2js: generate simple '==' in more cases
Change-Id: I9f8d674f8346b6c3ecf5232c369b3953053d261f
Reviewed-on: https://dart-review.googlesource.com/74964
Commit-Queue: Stephen Adams <sra@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2018-09-14 17:11:23 +00:00

85 lines
1.7 KiB
Dart

// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
library equals_test;
import 'dart:async';
import 'package:async_helper/async_helper.dart';
import '../helpers/compiler_helper.dart';
const String TEST1 = r"""
foo(int a) {
return a == null;
// present: 'a == null'
// absent: 'eq'
}
""";
const String TEST2 = r"""
foo(int a) {
return a == 123;
// present: 'a === 123'
// absent: 'eq'
}
""";
const String TEST3 = r"""
foo(int a, int b) {
return a == b;
// present: 'a == b'
// absent: 'eq'
// absent: '==='
}
""";
const String TEST4 = r"""
foo(String a, String b) {
return a == b;
// present: 'a == b'
// absent: 'eq'
// absent: '==='
}
""";
// Comparable includes String and int, so can't be compared with `a == b` since
// that will convert an operand to make `2 =="2"` true.
const String TEST5 = r"""
foo(Comparable a, Comparable b) {
return a == b;
// present: 'a === b'
// present: 'a == null'
// present: 'b == null'
// absent: 'eq'
// absent: 'a == b'
}
""";
const String TEST6 = r"""
foo(dynamic a, dynamic b) {
return a == b;
// present: 'eq'
// absent: '=='
}
""";
main() {
runTests() async {
Future check(String test) {
return compile(test, entry: 'foo', check: checkerForAbsentPresent(test));
}
await check(TEST1);
await check(TEST2);
await check(TEST3);
await check(TEST4);
await check(TEST5);
await check(TEST6);
}
asyncTest(() async {
print('--test from kernel------------------------------------------------');
await runTests();
});
}