Ryan Macnak
471b01de2e
The VM assumes parents appear before children when iterating loading units in id order. Normally this happens as a side-effect of sources being loaded in import order, but this might not happen in environments that combine separately produced kernel files. Bug: https://github.com/dart-lang/sdk/issues/42985 Change-Id: Ice9e2e07cf2aa89e91ab313951cc33c1924f17ed Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/158066 Commit-Queue: Ryan Macnak <rmacnak@google.com> Reviewed-by: Alexander Markov <alexmarkov@google.com>
55 lines
1.7 KiB
Dart
55 lines
1.7 KiB
Dart
// Copyright (c) 2020, 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 'dart:io';
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import 'package:kernel/target/targets.dart';
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import 'package:kernel/ast.dart';
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import 'package:kernel/kernel.dart';
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import 'package:test/test.dart';
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import 'package:vm/transformations/deferred_loading.dart'
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show transformComponent;
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import '../common_test_utils.dart';
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final String pkgVmDir = Platform.script.resolve('../..').toFilePath();
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runTestCase(Uri source) async {
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final target = new TestingVmTarget(new TargetFlags());
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Component component =
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await compileTestCaseToKernelProgram(source, target: target);
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// Disrupt the import order as a way of simulating issue 42985.
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final reversed = component.libraries.reversed.toList();
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component.libraries.setAll(0, reversed);
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component = transformComponent(component);
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// Remove core libraries so the expected output isn't enormous and broken by
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// core libraries changes.
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component.libraries.removeWhere((lib) => lib.importUri.scheme == "dart");
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String actual = kernelComponentToString(component);
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// Remove absolute library URIs.
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actual = actual.replaceAll(new Uri.file(pkgVmDir).toString(), '#pkg/vm');
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compareResultWithExpectationsFile(source, actual);
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}
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main() {
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group('deferred-loading', () {
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final testCasesDir =
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new Directory(pkgVmDir + '/testcases/transformations/deferred_loading');
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for (var entry in testCasesDir
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.listSync(recursive: true, followLinks: false)
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.reversed) {
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if (entry.path.endsWith("main.dart")) {
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test(entry.path, () => runTestCase(entry.uri));
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}
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}
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});
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}
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