Joshua Litt
20faaa5d94
Change-Id: Ib18f554c1076f27a3f7c0df5a36410da41a1f467 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/148784 Reviewed-by: Paul Berry <paulberry@google.com> Reviewed-by: Sigmund Cherem <sigmund@google.com>
39 lines
1.1 KiB
Dart
39 lines
1.1 KiB
Dart
// Copyright (c) 2014, 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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// @dart = 2.7
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// Ensure that unused empty HashMap nodes are dropped from the output.
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import 'package:async_helper/async_helper.dart';
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import 'package:compiler/compiler_new.dart';
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import 'package:expect/expect.dart';
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import '../helpers/memory_compiler.dart';
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const TEST_SOURCE = const {
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"main.dart": r"""
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void main() {
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var x = {};
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return;
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}
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"""
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};
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const HASHMAP_EMPTY_CONSTRUCTOR = r"LinkedHashMap_LinkedHashMap$_empty";
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main() {
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runTest() async {
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var collector = new OutputCollector();
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await runCompiler(
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memorySourceFiles: TEST_SOURCE, outputProvider: collector);
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String generated = collector.getOutput('', OutputType.js);
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Expect.isFalse(generated.contains(HASHMAP_EMPTY_CONSTRUCTOR));
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}
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asyncTest(() async {
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print('--test from kernel------------------------------------------------');
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await runTest();
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});
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}
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