blob: 9fab0f288aebd7b898fef1e2622021f7f4552008 [file] [log] [blame]
// 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.
import 'package:analyzer/dart/analysis/declared_variables.dart';
import 'package:analyzer/dart/analysis/features.dart';
import 'package:analyzer/dart/ast/ast.dart';
import 'package:analyzer/dart/ast/token.dart';
import 'package:analyzer/dart/element/element.dart';
import 'package:analyzer/error/listener.dart';
import 'package:analyzer/file_system/memory_file_system.dart';
import 'package:analyzer/src/dart/analysis/experiments.dart';
import 'package:analyzer/src/dart/ast/ast.dart';
import 'package:analyzer/src/dart/scanner/reader.dart';
import 'package:analyzer/src/dart/scanner/scanner.dart';
import 'package:analyzer/src/generated/parser.dart';
import 'package:analyzer/src/generated/source.dart';
import 'resynthesize_common.dart';
CompilationUnit parseText(
String text,
FeatureSet featureSet,
) {
featureSet ??= FeatureSet.forTesting(sdkVersion: '2.3.0');
CharSequenceReader reader = CharSequenceReader(text);
Scanner scanner = Scanner(null, reader, AnalysisErrorListener.NULL_LISTENER)
featureSetForOverriding: featureSet,
featureSet: featureSet,
Token token = scanner.tokenize();
// Pass the feature set from the scanner to the parser
// because the scanner may have detected a language version comment
// and downgraded the feature set it holds.
Parser parser = Parser(
featureSet: scanner.featureSet,
CompilationUnit unit = parser.parseCompilationUnit(token);
unit.lineInfo = LineInfo(scanner.lineStarts);
var unitImpl = unit as CompilationUnitImpl;
unitImpl.languageVersion = LibraryLanguageVersion(
package: ExperimentStatus.currentVersion,
override: null,
return unit;
/// Abstract base class for tests of summary resynthesis.
/// Test classes should not extend this class directly; they should extend a
/// class that implements this class with methods that drive summary generation.
/// The tests themselves can then be provided via mixin, allowing summaries to
/// be tested in a variety of ways.
abstract class ResynthesizeTestStrategy {
/// The set of features enabled in this test.
FeatureSet featureSet;
set allowMissingFiles(bool value);
set declaredVariables(DeclaredVariables declaredVariables);
MemoryResourceProvider get resourceProvider;
set testFile(String value);
Source get testSource;
void addLibrary(String uri);
Source addLibrarySource(String filePath, String contents);
Source addSource(String path, String contents);
Source addTestSource(String code, [Uri uri]);
/// Implementation of [ResynthesizeTestStrategy] that drives summary
/// generation using the old two-phase API.
class ResynthesizeTestStrategyTwoPhase extends AbstractResynthesizeTest
implements ResynthesizeTestStrategy {
FeatureSet featureSet = FeatureSet.forTesting(sdkVersion: '2.7.0');
final Set<Source> serializedSources = <Source>{};