Dmitry Stefantsov
9aa2b61fee
Bug: https://github.com/dart-lang/sdk/issues/45101 Change-Id: Id0c9f3ce319111a79b2085f44a4e4243dbe6597a Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/187440 Commit-Queue: Dmitry Stefantsov <dmitryas@google.com> Reviewed-by: Johnni Winther <johnniwinther@google.com> Reviewed-by: Daco Harkes <dacoharkes@google.com>
82 lines
3.0 KiB
Dart
82 lines
3.0 KiB
Dart
// Copyright (c) 2019, 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.
|
|
|
|
// @dart = 2.9
|
|
|
|
/// Test to ensure that desugaring APIs used by clients like dart2js are
|
|
/// always up to date.
|
|
///
|
|
/// Desugaring APIs are methods that inspect the kernel output to find
|
|
/// structures that are assumed to always be generated by the CFE. If the CFE
|
|
/// changes its invariants, the desugaring APIs will change together to hide
|
|
/// these changes from clients.
|
|
|
|
import 'dart:io';
|
|
|
|
import 'package:async_helper/async_helper.dart';
|
|
import 'package:expect/expect.dart';
|
|
import 'package:front_end/src/api_unstable/dart2js.dart' as api;
|
|
import 'package:front_end/src/compute_platform_binaries_location.dart';
|
|
import 'package:front_end/src/fasta/kernel/utils.dart' show serializeComponent;
|
|
import 'package:front_end/src/testing/compiler_common.dart';
|
|
import 'package:kernel/ast.dart' as ir;
|
|
import 'package:kernel/binary/ast_from_binary.dart' show BinaryBuilder;
|
|
|
|
main() async {
|
|
await asyncTest(() async {
|
|
await testRedirectingFactoryDirect();
|
|
await testRedirectingFactorySerialized();
|
|
await testRedirectingFactoryPatchFile();
|
|
});
|
|
}
|
|
|
|
testRedirectingFactoryDirect() async {
|
|
var component = await compileUnit(['a.dart'], {'a.dart': aSource});
|
|
checkIsRedirectingFactory(component, 'a.dart', 'A', 'foo');
|
|
checkIsRedirectingFactory(component, 'core', 'Uri', 'file');
|
|
}
|
|
|
|
testRedirectingFactorySerialized() async {
|
|
var component = await compileUnit(['a.dart'], {'a.dart': aSource});
|
|
var bytes = serializeComponent(component);
|
|
component = new ir.Component();
|
|
new BinaryBuilder(bytes).readComponent(component);
|
|
checkIsRedirectingFactory(component, 'a.dart', 'A', 'foo');
|
|
checkIsRedirectingFactory(component, 'core', 'Uri', 'file');
|
|
}
|
|
|
|
// regression test: redirecting factories from patch files don't have the
|
|
// redirecting-factory flag stored in kernel.
|
|
testRedirectingFactoryPatchFile() async {
|
|
var componentUri =
|
|
computePlatformBinariesLocation().resolve('dart2js_platform.dill');
|
|
var component = new ir.Component();
|
|
new BinaryBuilder(new File.fromUri(componentUri).readAsBytesSync())
|
|
.readComponent(component);
|
|
checkIsRedirectingFactory(component, 'collection', 'HashMap', 'identity');
|
|
}
|
|
|
|
void checkIsRedirectingFactory(ir.Component component, String uriPath,
|
|
String className, String constructorName) {
|
|
var lib =
|
|
component.libraries.firstWhere((l) => l.importUri.path.endsWith(uriPath));
|
|
var cls = lib.classes.firstWhere((c) => c.name == className);
|
|
ir.Procedure member =
|
|
cls.members.firstWhere((m) => m.name.text == constructorName);
|
|
Expect.isTrue(
|
|
member.kind == ir.ProcedureKind.Factory, "$member is not a factory");
|
|
Expect.isTrue(api.isRedirectingFactory(member));
|
|
Expect.isTrue(member.isRedirectingFactoryConstructor);
|
|
}
|
|
|
|
const aSource = '''
|
|
class A {
|
|
factory A.foo(int x) = _B;
|
|
}
|
|
|
|
class _B implements A {
|
|
_B(int x);
|
|
}
|
|
''';
|