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// Copyright (c) 2015, 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 analyzer.test.src.task.dart_test;
import 'package:analyzer/dart/ast/ast.dart';
import 'package:analyzer/dart/ast/token.dart';
import 'package:analyzer/dart/ast/visitor.dart';
import 'package:analyzer/dart/element/element.dart';
import 'package:analyzer/dart/element/type.dart';
import 'package:analyzer/src/context/cache.dart';
import 'package:analyzer/src/dart/element/element.dart';
import 'package:analyzer/src/generated/constant.dart';
import 'package:analyzer/src/generated/engine.dart'
show AnalysisOptions, AnalysisOptionsImpl, CacheState;
import 'package:analyzer/src/generated/error.dart';
import 'package:analyzer/src/generated/resolver.dart';
import 'package:analyzer/src/generated/sdk.dart';
import 'package:analyzer/src/generated/source.dart';
import 'package:analyzer/src/services/lint.dart';
import 'package:analyzer/src/task/dart.dart';
import 'package:analyzer/src/task/html.dart';
import 'package:analyzer/src/task/strong/info.dart';
import 'package:analyzer/task/dart.dart';
import 'package:analyzer/task/general.dart';
import 'package:analyzer/task/model.dart';
import 'package:unittest/unittest.dart';
import '../../generated/resolver_test.dart';
import '../../generated/test_support.dart';
import '../../reflective_tests.dart';
import '../../utils.dart';
import '../context/abstract_context.dart';
import '../context/mock_sdk.dart';
main() {
initializeTestEnvironment();
runReflectiveTests(BuildCompilationUnitElementTaskTest);
runReflectiveTests(BuildDirectiveElementsTaskTest);
runReflectiveTests(BuildEnumMemberElementsTaskTest);
runReflectiveTests(BuildExportNamespaceTaskTest);
runReflectiveTests(BuildLibraryElementTaskTest);
runReflectiveTests(BuildPublicNamespaceTaskTest);
runReflectiveTests(BuildSourceExportClosureTaskTest);
runReflectiveTests(BuildTypeProviderTaskTest);
runReflectiveTests(BuildTypeProviderTaskTest_noAsync);
runReflectiveTests(ComputeConstantDependenciesTaskTest);
runReflectiveTests(ComputeConstantValueTaskTest);
runReflectiveTests(ComputeInferableStaticVariableDependenciesTaskTest);
runReflectiveTests(ComputeLibraryCycleTaskTest);
runReflectiveTests(ComputePropagableVariableDependenciesTaskTest);
runReflectiveTests(ContainingLibrariesTaskTest);
runReflectiveTests(DartErrorsTaskTest);
runReflectiveTests(EvaluateUnitConstantsTaskTest);
runReflectiveTests(GatherUsedImportedElementsTaskTest);
runReflectiveTests(GatherUsedLocalElementsTaskTest);
runReflectiveTests(GenerateHintsTaskTest);
runReflectiveTests(GenerateLintsTaskTest);
runReflectiveTests(InferInstanceMembersInUnitTaskTest);
runReflectiveTests(InferStaticVariableTypesInUnitTaskTest);
runReflectiveTests(InferStaticVariableTypeTaskTest);
runReflectiveTests(LibraryErrorsReadyTaskTest);
runReflectiveTests(LibraryUnitErrorsTaskTest);
runReflectiveTests(ParseDartTaskTest);
runReflectiveTests(PartiallyResolveUnitReferencesTaskTest);
runReflectiveTests(PropagateVariableTypesInUnitTaskTest);
runReflectiveTests(PropagateVariableTypeTaskTest);
runReflectiveTests(ResolveInstanceFieldsInUnitTaskTest);
runReflectiveTests(ResolveLibraryTaskTest);
runReflectiveTests(ResolveLibraryTypeNamesTaskTest);
runReflectiveTests(ResolveUnitTaskTest);
runReflectiveTests(ResolveUnitTypeNamesTaskTest);
runReflectiveTests(ResolveVariableReferencesTaskTest);
runReflectiveTests(ScanDartTaskTest);
runReflectiveTests(StrongModeInferenceTest);
runReflectiveTests(StrongModeVerifyUnitTaskTest);
runReflectiveTests(VerifyUnitTaskTest);
}
isInstanceOf isBuildCompilationUnitElementTask =
new isInstanceOf<BuildCompilationUnitElementTask>();
isInstanceOf isBuildDirectiveElementsTask =
new isInstanceOf<BuildDirectiveElementsTask>();
isInstanceOf isBuildEnumMemberElementsTask =
new isInstanceOf<BuildEnumMemberElementsTask>();
isInstanceOf isBuildExportNamespaceTask =
new isInstanceOf<BuildExportNamespaceTask>();
isInstanceOf isBuildLibraryElementTask =
new isInstanceOf<BuildLibraryElementTask>();
isInstanceOf isBuildPublicNamespaceTask =
new isInstanceOf<BuildPublicNamespaceTask>();
isInstanceOf isBuildSourceExportClosureTask =
new isInstanceOf<BuildSourceExportClosureTask>();
isInstanceOf isBuildTypeProviderTask =
new isInstanceOf<BuildTypeProviderTask>();
isInstanceOf isComputeConstantDependenciesTask =
new isInstanceOf<ComputeConstantDependenciesTask>();
isInstanceOf isComputeConstantValueTask =
new isInstanceOf<ComputeConstantValueTask>();
isInstanceOf isComputeInferableStaticVariableDependenciesTask =
new isInstanceOf<ComputeInferableStaticVariableDependenciesTask>();
isInstanceOf isComputePropagableVariableDependenciesTask =
new isInstanceOf<ComputePropagableVariableDependenciesTask>();
isInstanceOf isContainingLibrariesTask =
new isInstanceOf<ContainingLibrariesTask>();
isInstanceOf isDartErrorsTask = new isInstanceOf<DartErrorsTask>();
isInstanceOf isEvaluateUnitConstantsTask =
new isInstanceOf<EvaluateUnitConstantsTask>();
isInstanceOf isGatherUsedImportedElementsTask =
new isInstanceOf<GatherUsedImportedElementsTask>();
isInstanceOf isGatherUsedLocalElementsTask =
new isInstanceOf<GatherUsedLocalElementsTask>();
isInstanceOf isGenerateHintsTask = new isInstanceOf<GenerateHintsTask>();
isInstanceOf isGenerateLintsTask = new isInstanceOf<GenerateLintsTask>();
isInstanceOf isInferInstanceMembersInUnitTask =
new isInstanceOf<InferInstanceMembersInUnitTask>();
isInstanceOf isInferStaticVariableTypesInUnitTask =
new isInstanceOf<InferStaticVariableTypesInUnitTask>();
isInstanceOf isInferStaticVariableTypeTask =
new isInstanceOf<InferStaticVariableTypeTask>();
isInstanceOf isLibraryErrorsReadyTask =
new isInstanceOf<LibraryErrorsReadyTask>();
isInstanceOf isLibraryUnitErrorsTask =
new isInstanceOf<LibraryUnitErrorsTask>();
isInstanceOf isParseDartTask = new isInstanceOf<ParseDartTask>();
isInstanceOf isPartiallyResolveUnitReferencesTask =
new isInstanceOf<PartiallyResolveUnitReferencesTask>();
isInstanceOf isPropagateVariableTypesInUnitTask =
new isInstanceOf<PropagateVariableTypesInUnitTask>();
isInstanceOf isPropagateVariableTypeTask =
new isInstanceOf<PropagateVariableTypeTask>();
isInstanceOf isResolveLibraryTask = new isInstanceOf<ResolveLibraryTask>();
isInstanceOf isResolveLibraryTypeNamesTask =
new isInstanceOf<ResolveLibraryTypeNamesTask>();
isInstanceOf isResolveUnitTask = new isInstanceOf<ResolveUnitTask>();
isInstanceOf isResolveUnitTypeNamesTask =
new isInstanceOf<ResolveUnitTypeNamesTask>();
isInstanceOf isResolveVariableReferencesTask =
new isInstanceOf<ResolveVariableReferencesTask>();
isInstanceOf isScanDartTask = new isInstanceOf<ScanDartTask>();
isInstanceOf isStrongModeVerifyUnitTask =
new isInstanceOf<StrongModeVerifyUnitTask>();
isInstanceOf isVerifyUnitTask = new isInstanceOf<VerifyUnitTask>();
final LintCode _testLintCode = new LintCode('test lint', 'test lint code');
@reflectiveTest
class BuildCompilationUnitElementTaskTest extends _AbstractDartTaskTest {
Source source;
LibrarySpecificUnit target;
test_created_resolved_unit() {
Source source = newSource(
'/test.dart',
r'''
library lib;
class A {}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVED_UNIT1);
expect(outputs[RESOLVED_UNIT1], isNotNull);
expect(outputs[CREATED_RESOLVED_UNIT1], isTrue);
}
test_perform_find_constants() {
_performBuildTask('''
const x = 1;
class C {
static const y = 1;
const C([p = 1]);
}
@x
f() {
const z = 1;
}
''');
CompilationUnit unit = outputs[RESOLVED_UNIT1];
CompilationUnitElement unitElement = outputs[COMPILATION_UNIT_ELEMENT];
Annotation annotation = unit.declarations
.firstWhere((m) => m is FunctionDeclaration)
.metadata[0];
List<ConstantEvaluationTarget> expectedConstants = [
unitElement.accessors.firstWhere((e) => e.isGetter).variable,
unitElement.types[0].fields[0],
unitElement.functions[0].localVariables[0],
unitElement.types[0].constructors[0],
annotation.elementAnnotation,
unitElement.types[0].constructors[0].parameters[0]
];
expect(
outputs[COMPILATION_UNIT_CONSTANTS].toSet(), expectedConstants.toSet());
}
test_perform_library() {
_performBuildTask(r'''
library lib;
import 'lib2.dart';
export 'lib3.dart';
part 'part.dart';
final x = '';
class A {
static final y = 0;
}
class B = Object with A;
''');
expect(outputs, hasLength(4));
expect(outputs[COMPILATION_UNIT_CONSTANTS], isNotNull);
expect(outputs[COMPILATION_UNIT_ELEMENT], isNotNull);
expect(outputs[RESOLVED_UNIT1], isNotNull);
expect(outputs[CREATED_RESOLVED_UNIT1], isTrue);
}
test_perform_reuseElement() {
_performBuildTask(r'''
library lib;
class A {}
class B = Object with A;
''');
CompilationUnit unit = outputs[RESOLVED_UNIT1];
CompilationUnitElement unitElement = outputs[COMPILATION_UNIT_ELEMENT];
expect(unit, isNotNull);
expect(unitElement, isNotNull);
// invalidate RESOLVED_UNIT1
CacheEntry cacheEntry = analysisCache.get(target);
cacheEntry.setState(RESOLVED_UNIT1, CacheState.INVALID);
// compute again
computeResult(target, RESOLVED_UNIT1,
matcher: isBuildCompilationUnitElementTask);
expect(outputs[COMPILATION_UNIT_ELEMENT], same(unitElement));
expect(outputs[RESOLVED_UNIT1], isNot(same(unit)));
}
void _performBuildTask(String content) {
source = newSource('/test.dart', content);
target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVED_UNIT1,
matcher: isBuildCompilationUnitElementTask);
}
}
@reflectiveTest
class BuildDirectiveElementsTaskTest extends _AbstractDartTaskTest {
/**
* Verify that the given [element] has exactly one annotation, and that its
* [ElementAnnotationImpl] is unresolved and points back to [element].
*
* The compilation unit stored in the [ElementAnnotationImpl] should be
* [compilationUnit].
*/
void checkMetadata(Element element, CompilationUnitElement compilationUnit) {
expect(element.metadata, hasLength(1));
expect(element.metadata[0], new isInstanceOf<ElementAnnotationImpl>());
ElementAnnotationImpl elementAnnotation = element.metadata[0];
expect(elementAnnotation.element, isNull); // Not yet resolved
expect(elementAnnotation.compilationUnit, isNotNull);
expect(elementAnnotation.compilationUnit, compilationUnit);
}
test_perform() {
List<Source> sources = newSources({
'/libA.dart': '''
library libA;
import 'libB.dart';
export 'libC.dart';
''',
'/libB.dart': '''
library libB;
''',
'/libC.dart': '''
library libC;
'''
});
Source sourceA = sources[0];
Source sourceB = sources[1];
Source sourceC = sources[2];
// perform task
computeResult(sourceA, LIBRARY_ELEMENT2,
matcher: isBuildDirectiveElementsTask);
// prepare outputs
LibraryElement libraryElementA = outputs[LIBRARY_ELEMENT2];
LibraryElement libraryElementB = _getImportLibraryInput(sourceB);
LibraryElement libraryElementC = _getExportLibraryInput(sourceC);
// no errors
_assertErrorsWithCodes([]);
// validate directives
CompilationUnit libraryUnitA = context
.getCacheEntry(new LibrarySpecificUnit(sourceA, sourceA))
.getValue(RESOLVED_UNIT1);
{
ImportDirective importNode = libraryUnitA.directives[1];
ImportElement importElement = importNode.element;
expect(importElement, isNotNull);
expect(importElement.importedLibrary, libraryElementB);
expect(importElement.prefix, isNull);
expect(importElement.nameOffset, 14);
expect(importElement.uriOffset, 21);
expect(importElement.uriEnd, 32);
}
{
ExportDirective exportNode = libraryUnitA.directives[2];
ExportElement exportElement = exportNode.element;
expect(exportElement, isNotNull);
expect(exportElement.exportedLibrary, libraryElementC);
expect(exportElement.nameOffset, 34);
expect(exportElement.uriOffset, 41);
expect(exportElement.uriEnd, 52);
}
// validate LibraryElement
expect(libraryElementA.hasExtUri, isFalse);
// has an artificial "dart:core" import
{
List<ImportElement> imports = libraryElementA.imports;
expect(imports, hasLength(2));
expect(imports[1].importedLibrary.isDartCore, isTrue);
expect(imports[1].isSynthetic, isTrue);
}
}
test_perform_combinators() {
List<Source> sources = newSources({
'/libA.dart': '''
library libA;
import 'libB.dart' show A, B hide C, D;
''',
'/libB.dart': '''
library libB;
'''
});
Source sourceA = sources[0];
// perform task
computeResult(sourceA, LIBRARY_ELEMENT2,
matcher: isBuildDirectiveElementsTask);
// prepare outputs
CompilationUnit libraryUnitA = context
.getCacheEntry(new LibrarySpecificUnit(sourceA, sourceA))
.getValue(RESOLVED_UNIT1);
// no errors
_assertErrorsWithCodes([]);
// validate directives
ImportDirective importNode = libraryUnitA.directives[1];
ImportElement importElement = importNode.element;
List<NamespaceCombinator> combinators = importElement.combinators;
expect(combinators, hasLength(2));
{
ShowElementCombinator combinator = combinators[0];
expect(combinator.offset, 33);
expect(combinator.end, 42);
expect(combinator.shownNames, ['A', 'B']);
}
{
HideElementCombinator combinator = combinators[1];
expect(combinator.hiddenNames, ['C', 'D']);
}
}
test_perform_dartCoreContext() {
List<Source> sources = newSources({'/libA.dart': ''});
Source source = sources[0];
// perform task
computeResult(source, LIBRARY_ELEMENT2,
matcher: isBuildDirectiveElementsTask);
// prepare outputs
LibraryElement libraryElement = outputs[LIBRARY_ELEMENT2];
// verify that dart:core has SDK context
{
LibraryElement coreLibrary = libraryElement.importedLibraries[0];
DartSdk dartSdk = context.sourceFactory.dartSdk;
expect(coreLibrary.context, same(dartSdk.context));
}
}
test_perform_error_exportOfNonLibrary() {
List<Source> sources = newSources({
'/libA.dart': '''
library libA;
export 'part.dart';
''',
'/part.dart': '''
part of notLib;
'''
});
Source sourceA = sources[0];
// perform task
computeResult(sourceA, LIBRARY_ELEMENT2,
matcher: isBuildDirectiveElementsTask);
// validate errors
_assertErrorsWithCodes([CompileTimeErrorCode.EXPORT_OF_NON_LIBRARY]);
}
test_perform_error_importOfNonLibrary() {
List<Source> sources = newSources({
'/libA.dart': '''
library libA;
import 'part.dart';
''',
'/part.dart': '''
part of notLib;
'''
});
Source sourceA = sources[0];
// perform task
computeResult(sourceA, LIBRARY_ELEMENT2,
matcher: isBuildDirectiveElementsTask);
// validate errors
_assertErrorsWithCodes([CompileTimeErrorCode.IMPORT_OF_NON_LIBRARY]);
}
test_perform_explicitDartCoreImport() {
List<Source> sources = newSources({
'/lib.dart': '''
library lib;
import 'dart:core' show List;
'''
});
Source source = sources[0];
// perform task
computeResult(source, LIBRARY_ELEMENT2,
matcher: isBuildDirectiveElementsTask);
// prepare outputs
LibraryElement libraryElement = outputs[LIBRARY_ELEMENT2];
// has an explicit "dart:core" import
{
List<ImportElement> imports = libraryElement.imports;
expect(imports, hasLength(1));
expect(imports[0].importedLibrary.isDartCore, isTrue);
expect(imports[0].isSynthetic, isFalse);
}
}
test_perform_hasExtUri() {
List<Source> sources = newSources({
'/lib.dart': '''
import 'dart-ext:doesNotExist.dart';
'''
});
Source source = sources[0];
// perform task
computeResult(source, LIBRARY_ELEMENT2,
matcher: isBuildDirectiveElementsTask);
// prepare outputs
LibraryElement libraryElement = outputs[LIBRARY_ELEMENT2];
expect(libraryElement.hasExtUri, isTrue);
}
test_perform_importPrefix() {
List<Source> sources = newSources({
'/libA.dart': '''
library libA;
import 'libB.dart' as pref;
import 'libC.dart' as pref;
''',
'/libB.dart': '''
library libB;
''',
'/libC.dart': '''
library libC;
'''
});
Source sourceA = sources[0];
Source sourceB = sources[1];
// perform task
computeResult(sourceA, LIBRARY_ELEMENT2,
matcher: isBuildDirectiveElementsTask);
// prepare outputs
CompilationUnit libraryUnitA = context
.getCacheEntry(new LibrarySpecificUnit(sourceA, sourceA))
.getValue(RESOLVED_UNIT1);
// validate directives
ImportDirective importNodeB = libraryUnitA.directives[1];
SimpleIdentifier prefixNodeB = importNodeB.prefix;
ImportElement importElementB = importNodeB.element;
PrefixElement prefixElement = importElementB.prefix;
expect(importElementB, isNotNull);
expect(importElementB.importedLibrary, _getImportLibraryInput(sourceB));
expect(prefixElement, isNotNull);
expect(importElementB.prefixOffset, prefixElement.nameOffset);
expect(prefixNodeB.staticElement, prefixElement);
// PrefixElement "pref" is shared
ImportDirective importNodeC = libraryUnitA.directives[2];
SimpleIdentifier prefixNodeC = importNodeC.prefix;
ImportElement importElementC = importNodeC.element;
expect(prefixNodeC.staticElement, prefixElement);
expect(importElementC.prefix, prefixElement);
}
test_perform_metadata() {
List<Source> sources = newSources({
'/libA.dart': '''
@a library libA;
@b import 'libB.dart';
@c export 'libC.dart';
@d part 'part.dart';''',
'/libB.dart': 'library libB;',
'/libC.dart': 'library libC;',
'/part.dart': 'part of libA;'
});
Source sourceA = sources[0];
// perform task
computeResult(sourceA, LIBRARY_ELEMENT2,
matcher: isBuildDirectiveElementsTask);
// Get outputs
LibraryElement libraryA =
context.getCacheEntry(sourceA).getValue(LIBRARY_ELEMENT2);
// Validate metadata
checkMetadata(libraryA, libraryA.definingCompilationUnit);
checkMetadata(libraryA.imports[0], libraryA.definingCompilationUnit);
checkMetadata(libraryA.exports[0], libraryA.definingCompilationUnit);
checkMetadata(libraryA.parts[0], libraryA.definingCompilationUnit);
}
test_perform_metadata_partOf() {
// We don't record annotations on `part of` directives because the element
// associated with a `part of` directive is the library, and the convention
// is to annotate the library at the site of the `library` declaration.
List<Source> sources = newSources({
'/libA.dart': '''
library libA;
part 'part.dart';''',
'/part.dart': '@a part of libA;'
});
Source sourceA = sources[0];
Source sourcePart = sources[1];
// perform task
computeResult(sourceA, LIBRARY_ELEMENT2,
matcher: isBuildDirectiveElementsTask);
// Get outputs
LibraryElement libraryA =
context.getCacheEntry(sourceA).getValue(LIBRARY_ELEMENT2);
CompilationUnit part = context
.getCacheEntry(new LibrarySpecificUnit(sourceA, sourcePart))
.getValue(RESOLVED_UNIT1);
// Validate metadata
expect(part.directives[0], new isInstanceOf<PartOfDirective>());
expect(part.directives[0].element, same(libraryA));
expect(part.directives[0].element.metadata, isEmpty);
}
void _assertErrorsWithCodes(List<ErrorCode> expectedErrorCodes) {
_fillErrorListener(BUILD_DIRECTIVES_ERRORS);
errorListener.assertErrorsWithCodes(expectedErrorCodes);
}
_getExportLibraryInput(Source source) {
var key = BuildDirectiveElementsTask.EXPORTS_LIBRARY_ELEMENT_INPUT_NAME;
return task.inputs[key][source];
}
_getImportLibraryInput(Source source) {
var key = BuildDirectiveElementsTask.IMPORTS_LIBRARY_ELEMENT_INPUT_NAME;
return task.inputs[key][source];
}
}
@reflectiveTest
class BuildEnumMemberElementsTaskTest extends _AbstractDartTaskTest {
test_created_resolved_unit() {
Source source = newSource(
'/test.dart',
r'''
library lib;
class A {}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVED_UNIT2);
expect(outputs[RESOLVED_UNIT2], isNotNull);
expect(outputs[CREATED_RESOLVED_UNIT2], isTrue);
}
test_perform() {
Source source = newSource(
'/test.dart',
'''
enum MyEnum {
A, B
}
''');
computeResult(new LibrarySpecificUnit(source, source), RESOLVED_UNIT2,
matcher: isBuildEnumMemberElementsTask);
CompilationUnit unit = outputs[RESOLVED_UNIT2];
// validate Element
ClassElement enumElement = unit.element.getEnum('MyEnum');
List<FieldElement> fields = enumElement.fields;
expect(fields, hasLength(4));
{
FieldElementImpl index = fields[0];
expect(index, isNotNull);
expect(index.name, 'index');
expect(index.isStatic, isFalse);
expect(index.evaluationResult, isNull);
_assertGetter(index);
}
{
ConstFieldElementImpl values = fields[1];
expect(values, isNotNull);
expect(values.name, 'values');
expect(values.isStatic, isTrue);
expect(values.evaluationResult, isNotNull);
_assertGetter(values);
}
{
ConstFieldElementImpl constant = fields[2];
expect(constant, isNotNull);
expect(constant.name, 'A');
expect(constant.isStatic, isTrue);
expect(constant.evaluationResult, isNotNull);
_assertGetter(constant);
}
{
ConstFieldElementImpl constant = fields[3];
expect(constant, isNotNull);
expect(constant.name, 'B');
expect(constant.isStatic, isTrue);
expect(constant.evaluationResult, isNotNull);
_assertGetter(constant);
}
// validate nodes
EnumDeclaration enumNode = unit.declarations[0];
expect(enumNode.name.staticElement, same(enumElement));
expect(enumNode.constants[0].element, same(enumElement.getField('A')));
expect(enumNode.constants[1].element, same(enumElement.getField('B')));
}
static void _assertGetter(FieldElement field) {
PropertyAccessorElement getter = field.getter;
expect(getter, isNotNull);
expect(getter.variable, same(field));
expect(getter.type, isNotNull);
}
}
@reflectiveTest
class BuildExportNamespaceTaskTest extends _AbstractDartTaskTest {
test_perform_entryPoint() {
Source sourceA = newSource(
'/a.dart',
'''
library lib_a;
export 'b.dart';
''');
Source sourceB = newSource(
'/b.dart',
'''
library lib_b;
main() {}
''');
computeResult(sourceA, LIBRARY_ELEMENT4,
matcher: isBuildExportNamespaceTask);
// validate
LibraryElement library = outputs[LIBRARY_ELEMENT4];
FunctionElement entryPoint = library.entryPoint;
expect(entryPoint, isNotNull);
expect(entryPoint.source, sourceB);
}
test_perform_hideCombinator() {
Source sourceA = newSource(
'/a.dart',
'''
library lib_a;
export 'b.dart' hide B1;
class A1 {}
class A2 {}
class _A3 {}
''');
newSource(
'/b.dart',
'''
library lib_b;
class B1 {}
class B2 {}
class B3 {}
class _B4 {}
''');
newSource(
'/c.dart',
'''
library lib_c;
class C1 {}
class C2 {}
class C3 {}
''');
computeResult(sourceA, LIBRARY_ELEMENT4,
matcher: isBuildExportNamespaceTask);
// validate
LibraryElement library = outputs[LIBRARY_ELEMENT4];
Namespace namespace = library.exportNamespace;
Iterable<String> definedKeys = namespace.definedNames.keys;
expect(definedKeys, unorderedEquals(['A1', 'A2', 'B2', 'B3']));
}
test_perform_showCombinator() {
Source sourceA = newSource(
'/a.dart',
'''
library lib_a;
export 'b.dart' show B1;
class A1 {}
class A2 {}
class _A3 {}
''');
newSource(
'/b.dart',
'''
library lib_b;
class B1 {}
class B2 {}
class _B3 {}
''');
computeResult(sourceA, LIBRARY_ELEMENT4,
matcher: isBuildExportNamespaceTask);
// validate
LibraryElement library = outputs[LIBRARY_ELEMENT4];
Namespace namespace = library.exportNamespace;
Iterable<String> definedKeys = namespace.definedNames.keys;
expect(definedKeys, unorderedEquals(['A1', 'A2', 'B1']));
}
test_perform_showCombinator_setter() {
Source sourceA = newSource(
'/a.dart',
'''
library lib_a;
export 'b.dart' show topLevelB;
class A {}
''');
newSource(
'/b.dart',
'''
library lib_b;
int topLevelB;
''');
computeResult(sourceA, LIBRARY_ELEMENT4,
matcher: isBuildExportNamespaceTask);
// validate
LibraryElement library = outputs[LIBRARY_ELEMENT4];
Namespace namespace = library.exportNamespace;
Iterable<String> definedKeys = namespace.definedNames.keys;
expect(definedKeys, unorderedEquals(['A', 'topLevelB', 'topLevelB=']));
}
}
@reflectiveTest
class BuildLibraryElementTaskTest extends _AbstractDartTaskTest {
Source librarySource;
CompilationUnit libraryUnit;
CompilationUnitElement libraryUnitElement;
List<CompilationUnit> partUnits;
LibraryElement libraryElement;
test_perform() {
_performBuildTask({
'/lib.dart': '''
library lib;
part 'part1.dart';
part 'part2.dart';
''',
'/part1.dart': '''
part of lib;
''',
'/part2.dart': '''
part of lib;
'''
});
expect(outputs, hasLength(3));
// simple outputs
expect(outputs[BUILD_LIBRARY_ERRORS], isEmpty);
expect(outputs[IS_LAUNCHABLE], isFalse);
// LibraryElement output
expect(libraryElement, isNotNull);
expect(libraryElement.entryPoint, isNull);
expect(libraryElement.source, same(librarySource));
expect(libraryElement.definingCompilationUnit, libraryUnitElement);
expect(libraryElement.parts,
unorderedEquals([partUnits[0].element, partUnits[1].element]));
// LibraryElement references
expect((libraryUnit.directives[0] as LibraryDirective).element,
same(libraryElement));
expect((partUnits[0].directives[0] as PartOfDirective).element,
same(libraryElement));
expect((partUnits[1].directives[0] as PartOfDirective).element,
same(libraryElement));
// CompilationUnitElement(s)
CompilationUnitElement firstPart;
CompilationUnitElement secondPart;
if (partUnits[0].element.uri == 'part1.dart') {
firstPart = partUnits[0].element;
secondPart = partUnits[1].element;
} else {
firstPart = partUnits[1].element;
secondPart = partUnits[0].element;
}
expect(firstPart.uri, 'part1.dart');
expect(firstPart.uriOffset, 18);
expect(firstPart.uriEnd, 30);
expect(
(libraryUnit.directives[1] as PartDirective).element, same(firstPart));
expect(secondPart.uri, 'part2.dart');
expect(secondPart.uriOffset, 37);
expect(secondPart.uriEnd, 49);
expect(
(libraryUnit.directives[2] as PartDirective).element, same(secondPart));
}
test_perform_error_missingLibraryDirectiveWithPart_hasCommon() {
_performBuildTask({
'/lib.dart': '''
part 'partA.dart';
part 'partB.dart';
''',
'/partA.dart': '''
part of my_lib;
''',
'/partB.dart': '''
part of my_lib;
'''
});
_assertErrorsWithCodes(
[ResolverErrorCode.MISSING_LIBRARY_DIRECTIVE_WITH_PART]);
AnalysisError error = errorListener.errors[0];
expect(error.getProperty(ErrorProperty.PARTS_LIBRARY_NAME), 'my_lib');
}
test_perform_error_missingLibraryDirectiveWithPart_noCommon() {
_performBuildTask({
'/lib.dart': '''
part 'partA.dart';
part 'partB.dart';
''',
'/partA.dart': '''
part of libA;
''',
'/partB.dart': '''
part of libB;
'''
});
_assertErrorsWithCodes(
[ResolverErrorCode.MISSING_LIBRARY_DIRECTIVE_WITH_PART]);
AnalysisError error = errorListener.errors[0];
expect(error.getProperty(ErrorProperty.PARTS_LIBRARY_NAME), isNull);
}
test_perform_error_partDoesNotExist() {
_performBuildTask({
'/lib.dart': '''
library lib;
part 'part.dart';
'''
});
// we already report URI_DOES_NOT_EXIST, no need to report other errors
_assertErrorsWithCodes([]);
}
test_perform_error_partOfDifferentLibrary() {
_performBuildTask({
'/lib.dart': '''
library lib;
part 'part.dart';
''',
'/part.dart': '''
part of someOtherLib;
'''
});
_assertErrorsWithCodes([StaticWarningCode.PART_OF_DIFFERENT_LIBRARY]);
}
test_perform_error_partOfNonPart() {
_performBuildTask({
'/lib.dart': '''
library lib;
part 'part.dart';
''',
'/part.dart': '''
// no part of
'''
});
_assertErrorsWithCodes([CompileTimeErrorCode.PART_OF_NON_PART]);
}
test_perform_invalidUri_part() {
_performBuildTask({
'/lib.dart': '''
library lib;
part '//////////';
'''
});
expect(libraryElement.parts, isEmpty);
}
test_perform_isLaunchable_inDefiningUnit() {
_performBuildTask({
'/lib.dart': '''
library lib;
main() {
}
'''
});
expect(outputs[IS_LAUNCHABLE], isTrue);
expect(libraryElement.entryPoint, isNotNull);
}
test_perform_isLaunchable_inPartUnit() {
_performBuildTask({
'/lib.dart': '''
library lib;
part 'part.dart';
''',
'/part.dart': '''
part of lib;
main() {
}
'''
});
expect(outputs[IS_LAUNCHABLE], isTrue);
expect(libraryElement.entryPoint, isNotNull);
}
test_perform_noSuchFilePart() {
_performBuildTask({
'/lib.dart': '''
library lib;
part 'no-such-file.dart';
'''
});
expect(libraryElement.parts, hasLength(1));
CompilationUnitElement part = libraryElement.parts[0];
expect(part, isNotNull);
expect(part.source, isNotNull);
expect(part.library, same(libraryElement));
expect(context.exists(part.source), isFalse);
}
test_perform_patchTopLevelAccessors() {
_performBuildTask({
'/lib.dart': '''
library lib;
part 'part1.dart';
part 'part2.dart';
''',
'/part1.dart': '''
part of lib;
int get test => 0;
''',
'/part2.dart': '''
part of lib;
void set test(_) {}
'''
});
CompilationUnitElement unitElement1 = partUnits
.singleWhere((u) => u.element.name.endsWith('part1.dart'))
.element;
CompilationUnitElement unitElement2 = partUnits
.singleWhere((u) => u.element.name.endsWith('part2.dart'))
.element;
PropertyAccessorElement getter = unitElement1.accessors[0];
PropertyAccessorElement setter = unitElement2.accessors[0];
PropertyInducingElement variable = getter.variable;
expect(getter.isGetter, isTrue);
expect(setter.isSetter, isTrue);
expect(variable, isNotNull);
expect(setter.variable, same(variable));
expect(unitElement1.topLevelVariables, [variable]);
expect(unitElement2.topLevelVariables, [variable]);
}
void _assertErrorsWithCodes(List<ErrorCode> expectedErrorCodes) {
_fillErrorListener(BUILD_LIBRARY_ERRORS);
errorListener.assertErrorsWithCodes(expectedErrorCodes);
}
void _performBuildTask(Map<String, String> sourceMap) {
List<Source> sources = newSources(sourceMap);
Source libSource = sources.first;
computeResult(libSource, LIBRARY_ELEMENT1,
matcher: isBuildLibraryElementTask);
libraryUnit = context
.getCacheEntry(new LibrarySpecificUnit(libSource, libSource))
.getValue(RESOLVED_UNIT1);
libraryUnitElement = libraryUnit.element;
librarySource = libraryUnitElement.source;
libraryElement = outputs[LIBRARY_ELEMENT1];
partUnits = task.inputs[BuildLibraryElementTask.PARTS_UNIT_INPUT];
}
}
@reflectiveTest
class BuildPublicNamespaceTaskTest extends _AbstractDartTaskTest {
test_perform() {
List<Source> sources = newSources({
'/lib.dart': '''
library lib;
part 'part.dart';
a() {}
_b() {}
''',
'/part.dart': '''
part of lib;
_c() {}
d() {}
'''
});
computeResult(sources.first, LIBRARY_ELEMENT3,
matcher: isBuildPublicNamespaceTask);
// validate
LibraryElement library = outputs[LIBRARY_ELEMENT3];
Namespace namespace = library.publicNamespace;
expect(namespace.definedNames.keys, unorderedEquals(['a', 'd']));
}
}
@reflectiveTest
class BuildSourceExportClosureTaskTest extends _AbstractDartTaskTest {
test_perform_exportClosure() {
Source sourceA = newSource(
'/a.dart',
'''
library lib_a;
export 'b.dart';
''');
Source sourceB = newSource(
'/b.dart',
'''
library lib_b;
export 'c.dart';
''');
Source sourceC = newSource(
'/c.dart',
'''
library lib_c;
export 'a.dart';
''');
Source sourceD = newSource(
'/d.dart',
'''
library lib_d;
''');
// a.dart
{
computeResult(sourceA, EXPORT_SOURCE_CLOSURE,
matcher: isBuildSourceExportClosureTask);
List<Source> closure = outputs[EXPORT_SOURCE_CLOSURE];
expect(closure, unorderedEquals([sourceA, sourceB, sourceC]));
}
// c.dart
{
computeResult(sourceC, EXPORT_SOURCE_CLOSURE,
matcher: isBuildSourceExportClosureTask);
List<Source> closure = outputs[EXPORT_SOURCE_CLOSURE];
expect(closure, unorderedEquals([sourceA, sourceB, sourceC]));
}
// d.dart
{
computeResult(sourceD, EXPORT_SOURCE_CLOSURE,
matcher: isBuildSourceExportClosureTask);
List<Source> closure = outputs[EXPORT_SOURCE_CLOSURE];
expect(closure, unorderedEquals([sourceD]));
}
}
}
@reflectiveTest
class BuildTypeProviderTaskTest extends _AbstractDartTaskTest {
test_perform() {
computeResult(AnalysisContextTarget.request, TYPE_PROVIDER,
matcher: isBuildTypeProviderTask);
// validate
TypeProvider typeProvider = outputs[TYPE_PROVIDER];
expect(typeProvider, isNotNull);
expect(typeProvider.boolType, isNotNull);
expect(typeProvider.intType, isNotNull);
expect(typeProvider.futureType, isNotNull);
}
}
@reflectiveTest
class BuildTypeProviderTaskTest_noAsync extends _AbstractDartTaskTest {
void prepareAnalysisContext([AnalysisOptions options]) {
AnalysisOptionsImpl newOptions = new AnalysisOptionsImpl();
newOptions.enableAsync = false;
super.prepareAnalysisContext(newOptions);
}
void setUp() {
sdk = new MockSdk(dartAsync: false);
super.setUp();
}
test_perform_noAsync() {
expect(context, isNotNull);
computeResult(AnalysisContextTarget.request, TYPE_PROVIDER,
matcher: isBuildTypeProviderTask);
// validate
TypeProvider typeProvider = outputs[TYPE_PROVIDER];
expect(typeProvider, isNotNull);
expect(typeProvider.boolType, isNotNull);
expect(typeProvider.intType, isNotNull);
expect(typeProvider.futureType, isNotNull);
}
}
@reflectiveTest
class ComputeConstantDependenciesTaskTest extends _AbstractDartTaskTest {
Annotation findClassAnnotation(CompilationUnit unit, String className) {
for (CompilationUnitMember member in unit.declarations) {
if (member is ClassDeclaration && member.name.name == className) {
expect(member.metadata, hasLength(1));
return member.metadata[0];
}
}
fail('Annotation not found');
return null;
}
test_annotation_with_args() {
Source source = newSource(
'/test.dart',
'''
const x = 1;
@D(x) class C {}
class D { const D(value); }
''');
// First compute the resolved unit for the source.
LibrarySpecificUnit librarySpecificUnit =
new LibrarySpecificUnit(source, source);
computeResult(librarySpecificUnit, RESOLVED_UNIT1);
CompilationUnit unit = outputs[RESOLVED_UNIT1];
// Find the elements for x and D's constructor, and the annotation on C.
List<PropertyAccessorElement> accessors = unit.element.accessors;
Element x = accessors
.firstWhere((PropertyAccessorElement accessor) =>
accessor.isGetter && accessor.name == 'x')
.variable;
List<ClassElement> types = unit.element.types;
Element constructorForD =
types.firstWhere((ClassElement cls) => cls.name == 'D').constructors[0];
Annotation annotation = findClassAnnotation(unit, 'C');
// Now compute the dependencies for the annotation, and check that it is
// the set [x, constructorForD].
// TODO(paulberry): test librarySource != source
computeResult(annotation.elementAnnotation, CONSTANT_DEPENDENCIES,
matcher: isComputeConstantDependenciesTask);
expect(
outputs[CONSTANT_DEPENDENCIES].toSet(), [x, constructorForD].toSet());
}
test_annotation_without_args() {
Source source = newSource(
'/test.dart',
'''
const x = 1;
@x class C {}
''');
// First compute the resolved unit for the source.
LibrarySpecificUnit librarySpecificUnit =
new LibrarySpecificUnit(source, source);
computeResult(librarySpecificUnit, RESOLVED_UNIT1);
CompilationUnit unit = outputs[RESOLVED_UNIT1];
// Find the element for x and the annotation on C.
List<PropertyAccessorElement> accessors = unit.element.accessors;
Element x = accessors
.firstWhere((PropertyAccessorElement accessor) =>
accessor.isGetter && accessor.name == 'x')
.variable;
Annotation annotation = findClassAnnotation(unit, 'C');
// Now compute the dependencies for the annotation, and check that it is
// the list [x].
computeResult(annotation.elementAnnotation, CONSTANT_DEPENDENCIES,
matcher: isComputeConstantDependenciesTask);
expect(outputs[CONSTANT_DEPENDENCIES], [x]);
}
test_enumConstant() {
Source source = newSource(
'/test.dart',
'''
enum E {A, B, C}
''');
// First compute the resolved unit for the source.
LibrarySpecificUnit librarySpecificUnit =
new LibrarySpecificUnit(source, source);
computeResult(librarySpecificUnit, RESOLVED_UNIT2);
CompilationUnit unit = outputs[RESOLVED_UNIT2];
// Find the element for 'A'
EnumDeclaration enumDeclaration = unit.declarations[0];
EnumConstantDeclaration constantDeclaration = enumDeclaration.constants[0];
FieldElement constantElement = constantDeclaration.element;
// Now compute the dependencies for the constant and check that there are
// none.
computeResult(constantElement, CONSTANT_DEPENDENCIES,
matcher: isComputeConstantDependenciesTask);
expect(outputs[CONSTANT_DEPENDENCIES], isEmpty);
}
test_perform() {
Source source = newSource(
'/test.dart',
'''
const x = y;
const y = 1;
''');
// First compute the resolved unit for the source.
LibrarySpecificUnit librarySpecificUnit =
new LibrarySpecificUnit(source, source);
computeResult(librarySpecificUnit, RESOLVED_UNIT1);
CompilationUnit unit = outputs[RESOLVED_UNIT1];
// Find the elements for the constants x and y.
List<PropertyAccessorElement> accessors = unit.element.accessors;
Element x = accessors
.firstWhere((PropertyAccessorElement accessor) =>
accessor.isGetter && accessor.name == 'x')
.variable;
Element y = accessors
.firstWhere((PropertyAccessorElement accessor) =>
accessor.isGetter && accessor.name == 'y')
.variable;
// Now compute the dependencies for x, and check that it is the list [y].
computeResult(x, CONSTANT_DEPENDENCIES,
matcher: isComputeConstantDependenciesTask);
expect(outputs[CONSTANT_DEPENDENCIES], [y]);
}
}
@reflectiveTest
class ComputeConstantValueTaskTest extends _AbstractDartTaskTest {
EvaluationResultImpl computeClassAnnotation(
Source source, CompilationUnit unit, String className) {
for (CompilationUnitMember member in unit.declarations) {
if (member is ClassDeclaration && member.name.name == className) {
expect(member.metadata, hasLength(1));
Annotation annotation = member.metadata[0];
ElementAnnotationImpl target = annotation.elementAnnotation;
computeResult(target, CONSTANT_VALUE,
matcher: isComputeConstantValueTask);
expect(outputs[CONSTANT_VALUE], same(target));
EvaluationResultImpl evaluationResult =
(annotation.elementAnnotation as ElementAnnotationImpl)
.evaluationResult;
return evaluationResult;
}
}
fail('Annotation not found');
return null;
}
test_annotation_non_const_constructor() {
// Calling a non-const constructor from an annotation that is illegal, but
// shouldn't crash analysis.
Source source = newSource(
'/test.dart',
'''
class A {
final int i;
A(this.i);
}
@A(5)
class C {}
''');
// First compute the resolved unit for the source.
CompilationUnit unit = _resolveSource(source);
// Compute the constant value of the annotation on C.
EvaluationResultImpl evaluationResult =
computeClassAnnotation(source, unit, 'C');
// And check that it has no value stored in it.
expect(evaluationResult, isNotNull);
expect(evaluationResult.value, isNull);
}
test_annotation_with_args() {
Source source = newSource(
'/test.dart',
'''
const x = 1;
@D(x) class C {}
class D {
const D(this.value);
final value;
}
''');
// First compute the resolved unit for the source.
CompilationUnit unit = _resolveSource(source);
// Compute the constant value of the annotation on C.
EvaluationResultImpl evaluationResult =
computeClassAnnotation(source, unit, 'C');
// And check that it has the expected value.
expect(evaluationResult, isNotNull);
expect(evaluationResult.value, isNotNull);
expect(evaluationResult.value.type, isNotNull);
expect(evaluationResult.value.type.name, 'D');
expect(evaluationResult.value.fields, contains('value'));
expect(evaluationResult.value.fields['value'].toIntValue(), 1);
}
test_annotation_without_args() {
Source source = newSource(
'/test.dart',
'''
const x = 1;
@x class C {}
''');
// First compute the resolved unit for the source.
CompilationUnit unit = _resolveSource(source);
// Compute the constant value of the annotation on C.
EvaluationResultImpl evaluationResult =
computeClassAnnotation(source, unit, 'C');
// And check that it has the expected value.
expect(evaluationResult, isNotNull);
expect(evaluationResult.value, isNotNull);
expect(evaluationResult.value.toIntValue(), 1);
}
test_circular_reference() {
_checkCircularities(
'x',
['y'],
'''
const x = y + 1;
const y = x + 1;
''');
}
test_circular_reference_one_element() {
// See dartbug.com/23490.
_checkCircularities('x', [], 'const x = x;');
}
test_circular_reference_strongly_connected_component() {
// When there is a circularity, all elements in the strongly connected
// component should be marked as having an error.
_checkCircularities(
'a',
['b', 'c', 'd'],
'''
const a = b;
const b = c + d;
const c = a;
const d = a;
''');
}
test_const_constructor_calls_implicit_super_constructor_implicitly() {
// Note: the situation below is a compile-time error (since the synthetic
// constructor for Base is non-const), but we need to handle it without
// throwing an exception.
EvaluationResultImpl evaluationResult = _computeTopLevelVariableConstValue(
'x',
'''
class Base {}
class Derived extends Base {
const Derived();
}
const x = const Derived();
''');
expect(evaluationResult, isNotNull);
}
test_dependency() {
EvaluationResultImpl evaluationResult = _computeTopLevelVariableConstValue(
'x',
'''
const x = y + 1;
const y = 1;
''');
expect(evaluationResult, isNotNull);
expect(evaluationResult.value, isNotNull);
expect(evaluationResult.value.toIntValue(), 2);
}
test_external_const_factory() {
EvaluationResultImpl evaluationResult = _computeTopLevelVariableConstValue(
'x',
'''
const x = const C.foo();
class C extends B {
external const factory C.foo();
}
class B {}
''');
expect(evaluationResult, isNotNull);
}
test_simple_constant() {
EvaluationResultImpl evaluationResult = _computeTopLevelVariableConstValue(
'x',
'''
const x = 1;
''');
expect(evaluationResult, isNotNull);
expect(evaluationResult.value, isNotNull);
expect(evaluationResult.value.toIntValue(), 1);
}
void _checkCircularities(
String variableName, List<String> otherVariables, String content) {
// Evaluating the first constant should produce an error.
CompilationUnit unit = _resolveUnit(content);
_expectCircularityError(_evaluateConstant(unit, variableName));
// And all the other constants involved in the strongly connected component
// should be set to the same error state.
for (String otherVariableName in otherVariables) {
PropertyInducingElement otherVariableElement =
AstFinder.getTopLevelVariableElement(unit, otherVariableName);
_expectCircularityError(
(otherVariableElement as TopLevelVariableElementImpl)
.evaluationResult);
}
}
EvaluationResultImpl _computeTopLevelVariableConstValue(
String variableName, String content) {
return _evaluateConstant(_resolveUnit(content), variableName);
}
EvaluationResultImpl _evaluateConstant(
CompilationUnit unit, String variableName) {
// Find the element for the given constant.
PropertyInducingElement variableElement =
AstFinder.getTopLevelVariableElement(unit, variableName);
// Now compute the value of the constant.
computeResult(variableElement, CONSTANT_VALUE,
matcher: isComputeConstantValueTask);
expect(outputs[CONSTANT_VALUE], same(variableElement));
EvaluationResultImpl evaluationResult =
(variableElement as TopLevelVariableElementImpl).evaluationResult;
return evaluationResult;
}
void _expectCircularityError(EvaluationResultImpl evaluationResult) {
expect(evaluationResult, isNotNull);
expect(evaluationResult.value, isNull);
expect(evaluationResult.errors, hasLength(1));
expect(evaluationResult.errors[0].errorCode,
CompileTimeErrorCode.RECURSIVE_COMPILE_TIME_CONSTANT);
}
CompilationUnit _resolveSource(Source source) {
LibrarySpecificUnit librarySpecificUnit =
new LibrarySpecificUnit(source, source);
computeResult(librarySpecificUnit, RESOLVED_UNIT1);
CompilationUnit unit = outputs[RESOLVED_UNIT1];
return unit;
}
CompilationUnit _resolveUnit(String content) =>
_resolveSource(newSource('/test.dart', content));
}
@reflectiveTest
class ComputeInferableStaticVariableDependenciesTaskTest
extends _AbstractDartTaskTest {
@override
void setUp() {
super.setUp();
// Variable dependencies are only available in strong mode.
enableStrongMode();
}
test_created_resolved_unit() {
Source source = newSource(
'/test.dart',
r'''
library lib;
class A {}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVED_UNIT5);
expect(outputs[RESOLVED_UNIT5], isNotNull);
expect(outputs[CREATED_RESOLVED_UNIT5], isTrue);
}
test_perform() {
AnalysisTarget source = newSource(
'/test.dart',
'''
const a = b;
const b = 0;
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVED_UNIT5);
CompilationUnit unit = outputs[RESOLVED_UNIT5];
TopLevelVariableElement elementA = unit.element.topLevelVariables[0];
TopLevelVariableElement elementB = unit.element.topLevelVariables[1];
computeResult(elementA, INFERABLE_STATIC_VARIABLE_DEPENDENCIES,
matcher: isComputeInferableStaticVariableDependenciesTask);
expect(outputs, hasLength(1));
List<VariableElement> dependencies =
outputs[INFERABLE_STATIC_VARIABLE_DEPENDENCIES];
expect(dependencies, unorderedEquals([elementB]));
}
}
@reflectiveTest
class ComputeLibraryCycleTaskTest extends _AbstractDartTaskTest {
@override
void setUp() {
super.setUp();
enableStrongMode();
}
void test_library_cycle_incremental() {
enableStrongMode();
Source lib1Source = newSource(
'/my_lib1.dart',
'''
library my_lib1;
''');
Source lib2Source = newSource(
'/my_lib2.dart',
'''
library my_lib2;
import 'my_lib1.dart';
''');
Source lib3Source = newSource(
'/my_lib3.dart',
'''
library my_lib3;
import 'my_lib2.dart';
''');
AnalysisTarget lib1Target = new LibrarySpecificUnit(lib1Source, lib1Source);
AnalysisTarget lib2Target = new LibrarySpecificUnit(lib2Source, lib2Source);
AnalysisTarget lib3Target = new LibrarySpecificUnit(lib3Source, lib3Source);
computeResult(lib1Target, LIBRARY_CYCLE);
expect(outputs[LIBRARY_CYCLE], hasLength(1));
computeResult(lib2Target, LIBRARY_CYCLE);
expect(outputs[LIBRARY_CYCLE], hasLength(1));
computeResult(lib3Target, LIBRARY_CYCLE);
expect(outputs[LIBRARY_CYCLE], hasLength(1));
// complete the cycle
context.setContents(
lib1Source,
'''
library my_lib1;
import 'my_lib3.dart';
''');
computeResult(lib1Target, LIBRARY_CYCLE);
expect(outputs[LIBRARY_CYCLE], hasLength(3));
computeResult(lib2Target, LIBRARY_CYCLE);
expect(outputs[LIBRARY_CYCLE], hasLength(3));
computeResult(lib3Target, LIBRARY_CYCLE);
expect(outputs[LIBRARY_CYCLE], hasLength(3));
// break the cycle again
context.setContents(
lib1Source,
'''
library my_lib1;
''');
computeResult(lib1Target, LIBRARY_CYCLE);
expect(outputs[LIBRARY_CYCLE], hasLength(1));
computeResult(lib2Target, LIBRARY_CYCLE);
expect(outputs[LIBRARY_CYCLE], hasLength(1));
computeResult(lib3Target, LIBRARY_CYCLE);
expect(outputs[LIBRARY_CYCLE], hasLength(1));
}
void test_library_cycle_incremental_partial() {
enableStrongMode();
Source lib1Source = newSource(
'/my_lib1.dart',
'''
library my_lib1;
''');
Source lib2Source = newSource(
'/my_lib2.dart',
'''
library my_lib2;
import 'my_lib1.dart';
''');
Source lib3Source = newSource(
'/my_lib3.dart',
'''
library my_lib3;
import 'my_lib2.dart';
''');
AnalysisTarget lib1Target = new LibrarySpecificUnit(lib1Source, lib1Source);
AnalysisTarget lib2Target = new LibrarySpecificUnit(lib2Source, lib2Source);
AnalysisTarget lib3Target = new LibrarySpecificUnit(lib3Source, lib3Source);
computeResult(lib1Target, LIBRARY_CYCLE);
expect(outputs[LIBRARY_CYCLE], hasLength(1));
computeResult(lib2Target, LIBRARY_CYCLE);
expect(outputs[LIBRARY_CYCLE], hasLength(1));
// lib3 is not reachable, so we have not yet computed its library
// cycles
// complete the cycle, via lib3
context.setContents(
lib1Source,
'''
library my_lib1;
import 'my_lib3.dart';
''');
// Ensure that invalidation correctly invalidated everything reachable
// through lib3
computeResult(lib1Target, LIBRARY_CYCLE);
expect(outputs[LIBRARY_CYCLE], hasLength(3));
computeResult(lib2Target, LIBRARY_CYCLE);
expect(outputs[LIBRARY_CYCLE], hasLength(3));
computeResult(lib3Target, LIBRARY_CYCLE);
expect(outputs[LIBRARY_CYCLE], hasLength(3));
}
void test_library_cycle_linear() {
List<Source> sources = newSources({
'/a.dart': '''
''',
'/b.dart': '''
import 'a.dart';
'''
});
List<Map<ResultDescriptor, dynamic>> results =
computeLibraryResultsMap(sources, LIBRARY_CYCLE);
List<LibraryElement> component0 = results[0][LIBRARY_CYCLE];
List<LibraryElement> component1 = results[1][LIBRARY_CYCLE];
expect(component0, hasLength(1));
expect(component1, hasLength(1));
List<CompilationUnitElement> units0 = results[0][LIBRARY_CYCLE_UNITS];
List<CompilationUnitElement> units1 = results[1][LIBRARY_CYCLE_UNITS];
expect(units0, hasLength(1));
expect(units1, hasLength(1));
List<CompilationUnitElement> dep0 = results[0][LIBRARY_CYCLE_DEPENDENCIES];
List<CompilationUnitElement> dep1 = results[1][LIBRARY_CYCLE_DEPENDENCIES];
expect(dep0, hasLength(1)); // dart:core
expect(dep1, hasLength(2)); // dart:core, a.dart
}
void test_library_cycle_loop() {
List<Source> sources = newSources({
'/a.dart': '''
import 'c.dart';
''',
'/b.dart': '''
import 'a.dart';
''',
'/c.dart': '''
import 'b.dart';
'''
});
List<Map<ResultDescriptor, dynamic>> results =
computeLibraryResultsMap(sources, LIBRARY_CYCLE).toList();
List<LibraryElement> component0 = results[0][LIBRARY_CYCLE];
List<LibraryElement> component1 = results[1][LIBRARY_CYCLE];
List<LibraryElement> component2 = results[2][LIBRARY_CYCLE];
expect(component0, hasLength(3));
expect(component1, hasLength(3));
expect(component2, hasLength(3));
List<CompilationUnitElement> units0 = results[0][LIBRARY_CYCLE_UNITS];
List<CompilationUnitElement> units1 = results[1][LIBRARY_CYCLE_UNITS];
List<CompilationUnitElement> units2 = results[2][LIBRARY_CYCLE_UNITS];
expect(units0, hasLength(3));
expect(units1, hasLength(3));
expect(units2, hasLength(3));
List<CompilationUnitElement> dep0 = results[0][LIBRARY_CYCLE_DEPENDENCIES];
List<CompilationUnitElement> dep1 = results[1][LIBRARY_CYCLE_DEPENDENCIES];
List<CompilationUnitElement> dep2 = results[2][LIBRARY_CYCLE_DEPENDENCIES];
expect(dep0, hasLength(1)); // dart:core
expect(dep1, hasLength(1)); // dart:core
expect(dep2, hasLength(1)); // dart:core
}
void test_library_cycle_override_inference_incremental() {
enableStrongMode();
Source lib1Source = newSource(
'/my_lib1.dart',
'''
library my_lib1;
import 'my_lib3.dart';
''');
Source lib2Source = newSource(
'/my_lib2.dart',
'''
library my_lib2;
import 'my_lib1.dart';
''');
Source lib3Source = newSource(
'/my_lib3.dart',
'''
library my_lib3;
import 'my_lib2.dart';
class A {
int foo(int x) => null;
}
class B extends A {
foo(x) => null;
}
''');
AnalysisTarget lib1Target = new LibrarySpecificUnit(lib1Source, lib1Source);
AnalysisTarget lib2Target = new LibrarySpecificUnit(lib2Source, lib2Source);
AnalysisTarget lib3Target = new LibrarySpecificUnit(lib3Source, lib3Source);
computeResult(lib1Target, RESOLVED_UNIT);
computeResult(lib2Target, RESOLVED_UNIT);
computeResult(lib3Target, RESOLVED_UNIT);
CompilationUnit unit = outputs[RESOLVED_UNIT];
ClassElement b = unit.declarations[1].element;
expect(b.getMethod('foo').returnType.toString(), 'int');
// add a dummy edit.
context.setContents(
lib1Source,
'''
library my_lib1;
import 'my_lib3.dart';
var foo = 123;
''');
computeResult(lib1Target, RESOLVED_UNIT);
computeResult(lib2Target, RESOLVED_UNIT);
computeResult(lib3Target, RESOLVED_UNIT);
unit = outputs[RESOLVED_UNIT];
b = unit.declarations[1].element;
expect(b.getMethod('foo').returnType.toString(), 'int',
reason: 'edit should not affect member inference');
}
void test_library_cycle_self_loop() {
List<Source> sources = newSources({
'/a.dart': '''
import 'a.dart';
'''
});
List<Map<ResultDescriptor, dynamic>> results =
computeLibraryResultsMap(sources, LIBRARY_CYCLE).toList();
List<LibraryElement> component0 = results[0][LIBRARY_CYCLE];
expect(component0, hasLength(1));
List<CompilationUnitElement> units0 = results[0][LIBRARY_CYCLE_UNITS];
expect(units0, hasLength(1));
List<CompilationUnitElement> dep0 = results[0][LIBRARY_CYCLE_DEPENDENCIES];
expect(dep0, hasLength(1)); // dart:core
}
void test_library_cycle_singleton() {
Source source = newSource(
'/test.dart',
'''
import 'dart:core';
''');
computeResult(new LibrarySpecificUnit(source, source), LIBRARY_CYCLE);
List<LibraryElement> component = outputs[LIBRARY_CYCLE];
List<CompilationUnitElement> units = outputs[LIBRARY_CYCLE_UNITS];
List<CompilationUnitElement> deps = outputs[LIBRARY_CYCLE_DEPENDENCIES];
expect(component, hasLength(1));
expect(units, hasLength(1));
expect(deps, hasLength(1));
}
void test_library_cycle_tree() {
List<Source> sources = newSources({
'/a.dart': '''
''',
'/b.dart': '''
''',
'/c.dart': '''
import 'a.dart';
import 'b.dart';
'''
});
List<Map<ResultDescriptor, dynamic>> results =
computeLibraryResultsMap(sources, LIBRARY_CYCLE);
List<LibraryElement> component0 = results[0][LIBRARY_CYCLE];
List<LibraryElement> component1 = results[1][LIBRARY_CYCLE];
List<LibraryElement> component2 = results[2][LIBRARY_CYCLE];
expect(component0, hasLength(1));
expect(component1, hasLength(1));
expect(component2, hasLength(1));
List<CompilationUnitElement> units0 = results[0][LIBRARY_CYCLE_UNITS];
List<CompilationUnitElement> units1 = results[1][LIBRARY_CYCLE_UNITS];
List<CompilationUnitElement> units2 = results[2][LIBRARY_CYCLE_UNITS];
expect(units0, hasLength(1));
expect(units1, hasLength(1));
expect(units2, hasLength(1));
List<CompilationUnitElement> dep0 = results[0][LIBRARY_CYCLE_DEPENDENCIES];
List<CompilationUnitElement> dep1 = results[1][LIBRARY_CYCLE_DEPENDENCIES];
List<CompilationUnitElement> dep2 = results[2][LIBRARY_CYCLE_DEPENDENCIES];
expect(dep0, hasLength(1)); // dart:core
expect(dep1, hasLength(1)); // dart:core,
expect(dep2, hasLength(3)); // dart:core, a.dart, b.dart
}
void test_library_double_loop() {
List<Source> sources = newSources({
'/a.dart': '''
import 'b.dart';
''',
'/b.dart': '''
import 'a.dart';
''',
'/c.dart': '''
import 'd.dart' as foo;
import 'a.dart' as bar;
export 'b.dart';
''',
'/d.dart': '''
import 'c.dart' as foo;
import 'b.dart' as bar;
export 'a.dart';
'''
});
List<Map<ResultDescriptor, dynamic>> results =
computeLibraryResultsMap(sources, LIBRARY_CYCLE).toList();
List<LibraryElement> component0 = results[0][LIBRARY_CYCLE];
List<LibraryElement> component1 = results[1][LIBRARY_CYCLE];
List<LibraryElement> component2 = results[2][LIBRARY_CYCLE];
List<LibraryElement> component3 = results[3][LIBRARY_CYCLE];
expect(component0, hasLength(2));
expect(component1, hasLength(2));
expect(component2, hasLength(2));
expect(component3, hasLength(2));
List<CompilationUnitElement> units0 = results[0][LIBRARY_CYCLE_UNITS];
List<CompilationUnitElement> units1 = results[1][LIBRARY_CYCLE_UNITS];
List<CompilationUnitElement> units2 = results[2][LIBRARY_CYCLE_UNITS];
List<CompilationUnitElement> units3 = results[3][LIBRARY_CYCLE_UNITS];
expect(units0, hasLength(2));
expect(units1, hasLength(2));
expect(units2, hasLength(2));
expect(units3, hasLength(2));
List<CompilationUnitElement> dep0 = results[0][LIBRARY_CYCLE_DEPENDENCIES];
List<CompilationUnitElement> dep1 = results[1][LIBRARY_CYCLE_DEPENDENCIES];
List<CompilationUnitElement> dep2 = results[2][LIBRARY_CYCLE_DEPENDENCIES];
List<CompilationUnitElement> dep3 = results[3][LIBRARY_CYCLE_DEPENDENCIES];
expect(dep0, hasLength(1)); // dart:core
expect(dep1, hasLength(1)); // dart:core
expect(dep2, hasLength(3)); // dart:core, a.dart, b.dart
expect(dep3, hasLength(3)); // dart:core, a.dart, b.dart
}
void test_library_double_loop_parts() {
List<Source> sources = newSources({
'/a.dart': '''
import 'b.dart';
part 'aa.dart';
part 'ab.dart';
''',
'/b.dart': '''
import 'a.dart';
''',
'/aa.dart': '''
''',
'/ab.dart': '''
''',
'/c.dart': '''
import 'd.dart' as foo;
import 'a.dart' as bar;
export 'b.dart';
''',
'/d.dart': '''
import 'c.dart' as foo;
import 'b.dart' as bar;
export 'a.dart';
part 'da.dart';
part 'db.dart';
''',
'/da.dart': '''
''',
'/db.dart': '''
'''
});
computeResult(
new LibrarySpecificUnit(sources[0], sources[0]), LIBRARY_CYCLE);
Map<ResultDescriptor, dynamic> results0 = outputs;
computeResult(
new LibrarySpecificUnit(sources[1], sources[1]), LIBRARY_CYCLE);
Map<ResultDescriptor, dynamic> results1 = outputs;
computeResult(
new LibrarySpecificUnit(sources[0], sources[2]), LIBRARY_CYCLE);
Map<ResultDescriptor, dynamic> results2 = outputs;
computeResult(
new LibrarySpecificUnit(sources[0], sources[3]), LIBRARY_CYCLE);
Map<ResultDescriptor, dynamic> results3 = outputs;
computeResult(
new LibrarySpecificUnit(sources[4], sources[4]), LIBRARY_CYCLE);
Map<ResultDescriptor, dynamic> results4 = outputs;
computeResult(
new LibrarySpecificUnit(sources[5], sources[5]), LIBRARY_CYCLE);
Map<ResultDescriptor, dynamic> results5 = outputs;
computeResult(
new LibrarySpecificUnit(sources[5], sources[6]), LIBRARY_CYCLE);
Map<ResultDescriptor, dynamic> results6 = outputs;
computeResult(
new LibrarySpecificUnit(sources[5], sources[7]), LIBRARY_CYCLE);
Map<ResultDescriptor, dynamic> results7 = outputs;
List<LibraryElement> component0 = results0[LIBRARY_CYCLE];
List<LibraryElement> component1 = results1[LIBRARY_CYCLE];
List<LibraryElement> component2 = results2[LIBRARY_CYCLE];
List<LibraryElement> component3 = results3[LIBRARY_CYCLE];
List<LibraryElement> component4 = results4[LIBRARY_CYCLE];
List<LibraryElement> component5 = results5[LIBRARY_CYCLE];
List<LibraryElement> component6 = results6[LIBRARY_CYCLE];
List<LibraryElement> component7 = results7[LIBRARY_CYCLE];
expect(component0, hasLength(2));
expect(component1, hasLength(2));
expect(component2, hasLength(2));
expect(component3, hasLength(2));
expect(component4, hasLength(2));
expect(component5, hasLength(2));
expect(component6, hasLength(2));
expect(component7, hasLength(2));
List<CompilationUnitElement> units0 = results0[LIBRARY_CYCLE_UNITS];
List<CompilationUnitElement> units1 = results1[LIBRARY_CYCLE_UNITS];
List<CompilationUnitElement> units2 = results2[LIBRARY_CYCLE_UNITS];
List<CompilationUnitElement> units3 = results3[LIBRARY_CYCLE_UNITS];
List<CompilationUnitElement> units4 = results4[LIBRARY_CYCLE_UNITS];
List<CompilationUnitElement> units5 = results5[LIBRARY_CYCLE_UNITS];
List<CompilationUnitElement> units6 = results6[LIBRARY_CYCLE_UNITS];
List<CompilationUnitElement> units7 = results7[LIBRARY_CYCLE_UNITS];
expect(units0, hasLength(4));
expect(units1, hasLength(4));
expect(units2, hasLength(4));
expect(units3, hasLength(4));
expect(units4, hasLength(4));
expect(units5, hasLength(4));
expect(units6, hasLength(4));
expect(units7, hasLength(4));
List<CompilationUnitElement> dep0 = results0[LIBRARY_CYCLE_DEPENDENCIES];
List<CompilationUnitElement> dep1 = results1[LIBRARY_CYCLE_DEPENDENCIES];
List<CompilationUnitElement> dep2 = results2[LIBRARY_CYCLE_DEPENDENCIES];
List<CompilationUnitElement> dep3 = results3[LIBRARY_CYCLE_DEPENDENCIES];
List<CompilationUnitElement> dep4 = results4[LIBRARY_CYCLE_DEPENDENCIES];
List<CompilationUnitElement> dep5 = results5[LIBRARY_CYCLE_DEPENDENCIES];
List<CompilationUnitElement> dep6 = results6[LIBRARY_CYCLE_DEPENDENCIES];
List<CompilationUnitElement> dep7 = results7[LIBRARY_CYCLE_DEPENDENCIES];
expect(dep0, hasLength(1)); // dart:core
expect(dep1, hasLength(1)); // dart:core
expect(dep2, hasLength(1)); // dart:core
expect(dep3, hasLength(1)); // dart:core
expect(dep4, hasLength(5)); // dart:core, a.dart, aa.dart, ab.dart, b.dart
expect(dep5, hasLength(5)); // dart:core, a.dart, aa.dart, ab.dart, b.dart
expect(dep6, hasLength(5)); // dart:core, a.dart, aa.dart, ab.dart, b.dart
expect(dep7, hasLength(5)); // dart:core, a.dart, aa.dart, ab.dart, b.dart
}
}
@reflectiveTest
class ComputePropagableVariableDependenciesTaskTest
extends _AbstractDartTaskTest {
test_perform_instanceField() {
AnalysisTarget source = newSource(
'/test.dart',
'''
class A {
final a = a1 + a2 + a3 + a4 + B.b1 + B.b2 + B.b3 + B.b4;
static const a1 = 1;
final a2 = 2;
final a3;
var a4 = 4;
}
class B {
static const b1 = 1;
static final b2 = 2;
static final b3;
static var b4 = 4;
}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVED_UNIT5);
CompilationUnit unit = outputs[RESOLVED_UNIT5];
FieldElement elementA = AstFinder.getFieldInClassElement(unit, 'A', 'a');
// compute
computeResult(elementA, PROPAGABLE_VARIABLE_DEPENDENCIES,
matcher: isComputePropagableVariableDependenciesTask);
// verify
expect(outputs, hasLength(1));
List<VariableElement> dependencies =
outputs[PROPAGABLE_VARIABLE_DEPENDENCIES];
expect(
dependencies,
unorderedEquals([
AstFinder.getFieldInClassElement(unit, 'A', 'a1'),
AstFinder.getFieldInClassElement(unit, 'A', 'a2'),
AstFinder.getFieldInClassElement(unit, 'B', 'b1'),
AstFinder.getFieldInClassElement(unit, 'B', 'b2')
]));
}
test_perform_topLevel() {
AnalysisTarget source = newSource(
'/test.dart',
'''
const a = d1 + d2 + d3 + d4;
const d1 = 1;
final d2 = 2;
final d3;
var d4 = 4;
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVED_UNIT5);
CompilationUnit unit = outputs[RESOLVED_UNIT5];
TopLevelVariableElement elementA =
AstFinder.getTopLevelVariableElement(unit, 'a');
// compute
computeResult(elementA, PROPAGABLE_VARIABLE_DEPENDENCIES,
matcher: isComputePropagableVariableDependenciesTask);
// verify
expect(outputs, hasLength(1));
List<VariableElement> dependencies =
outputs[PROPAGABLE_VARIABLE_DEPENDENCIES];
expect(
dependencies,
unorderedEquals([
AstFinder.getTopLevelVariableElement(unit, 'd1'),
AstFinder.getTopLevelVariableElement(unit, 'd2')
]));
}
test_perform_topLevel_ignoreLocal() {
AnalysisTarget source = newSource(
'/test.dart',
'''
final a = () {
const b = 2;
const c = 3;
return b + c;
}() + d;
final d = 4;
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVED_UNIT5);
CompilationUnit unit = outputs[RESOLVED_UNIT5];
TopLevelVariableElement elementA =
AstFinder.getTopLevelVariableElement(unit, 'a');
// compute
computeResult(elementA, PROPAGABLE_VARIABLE_DEPENDENCIES,
matcher: isComputePropagableVariableDependenciesTask);
// verify
expect(outputs, hasLength(1));
List<VariableElement> dependencies =
outputs[PROPAGABLE_VARIABLE_DEPENDENCIES];
expect(dependencies,
unorderedEquals([AstFinder.getTopLevelVariableElement(unit, 'd')]));
}
test_perform_topLevel_withoutSpaceAfterType() {
AnalysisTarget source = newSource(
'/test.dart',
'''
const List<int>a=[b, c];
const b = 1;
const c = 2;
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVED_UNIT5);
CompilationUnit unit = outputs[RESOLVED_UNIT5];
TopLevelVariableElement elementA =
AstFinder.getTopLevelVariableElement(unit, 'a');
// compute
computeResult(elementA, PROPAGABLE_VARIABLE_DEPENDENCIES,
matcher: isComputePropagableVariableDependenciesTask);
// verify
expect(outputs, hasLength(1));
List<VariableElement> dependencies =
outputs[PROPAGABLE_VARIABLE_DEPENDENCIES];
expect(
dependencies,
unorderedEquals([
AstFinder.getTopLevelVariableElement(unit, 'b'),
AstFinder.getTopLevelVariableElement(unit, 'c')
]));
}
}
@reflectiveTest
class ContainingLibrariesTaskTest extends _AbstractDartTaskTest {
test_perform_definingCompilationUnit() {
AnalysisTarget library = newSource('/test.dart', 'library test;');
computeResult(library, INCLUDED_PARTS);
computeResult(library, CONTAINING_LIBRARIES,
matcher: isContainingLibrariesTask);
expect(outputs, hasLength(1));
List<Source> containingLibraries = outputs[CONTAINING_LIBRARIES];
expect(containingLibraries, unorderedEquals([library]));
}
test_perform_partInMultipleLibraries() {
AnalysisTarget library1 =
newSource('/lib1.dart', 'library test; part "part.dart";');
AnalysisTarget library2 =
newSource('/lib2.dart', 'library test; part "part.dart";');
AnalysisTarget part = newSource('/part.dart', 'part of test;');
computeResult(library1, INCLUDED_PARTS);
computeResult(library2, INCLUDED_PARTS);
computeResult(part, SOURCE_KIND);
computeResult(part, CONTAINING_LIBRARIES,
matcher: isContainingLibrariesTask);
expect(outputs, hasLength(1));
List<Source> containingLibraries = outputs[CONTAINING_LIBRARIES];
expect(containingLibraries, unorderedEquals([library1, library2]));
}
test_perform_partInSingleLibrary() {
AnalysisTarget library =
newSource('/lib.dart', 'library test; part "part.dart";');
AnalysisTarget part = newSource('/part.dart', 'part of test;');
computeResult(library, INCLUDED_PARTS);
computeResult(part, SOURCE_KIND);
computeResult(part, CONTAINING_LIBRARIES,
matcher: isContainingLibrariesTask);
expect(outputs, hasLength(1));
List<Source> containingLibraries = outputs[CONTAINING_LIBRARIES];
expect(containingLibraries, unorderedEquals([library]));
}
}
@reflectiveTest
class DartErrorsTaskTest extends _AbstractDartTaskTest {
test_perform_definingCompilationUnit() {
AnalysisTarget library =
newSource('/test.dart', 'library test; import "dart:math";');
computeResult(library, INCLUDED_PARTS);
computeResult(library, DART_ERRORS, matcher: isDartErrorsTask);
expect(outputs, hasLength(1));
List<AnalysisError> errors = outputs[DART_ERRORS];
expect(errors, hasLength(1));
}
test_perform_partInSingleLibrary() {
AnalysisTarget library = newSource(
'/lib.dart', 'library test; import "dart:math"; part "part.dart";');
AnalysisTarget part =
newSource('/part.dart', 'part of test; class A extends A {}');
computeResult(library, INCLUDED_PARTS);
computeResult(library, DART_ERRORS);
computeResult(part, DART_ERRORS, matcher: isDartErrorsTask);
expect(outputs, hasLength(1));
List<AnalysisError> errors = outputs[DART_ERRORS];
// This should contain only the errors in the part file, not the ones in the
// library.
expect(errors, hasLength(1));
}
}
@reflectiveTest
class EvaluateUnitConstantsTaskTest extends _AbstractDartTaskTest {
test_created_resolved_unit() {
Source source = newSource(
'/test.dart',
r'''
library lib;
class A {}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVED_UNIT11);
expect(outputs[RESOLVED_UNIT11], isNotNull);
expect(outputs[CREATED_RESOLVED_UNIT11], isTrue);
}
test_perform() {
Source source = newSource(
'/test.dart',
'''
class C {
const C();
}
@x
f() {}
const x = const C();
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVED_UNIT11,
matcher: isEvaluateUnitConstantsTask);
CompilationUnit unit = outputs[RESOLVED_UNIT11];
CompilationUnitElement unitElement = unit.element;
expect(
(unitElement.types[0].constructors[0] as ConstructorElementImpl)
.isCycleFree,
isTrue);
expect(
(unitElement.functions[0].metadata[0] as ElementAnnotationImpl)
.evaluationResult,
isNotNull);
expect(
(unitElement.topLevelVariables[0] as TopLevelVariableElementImpl)
.evaluationResult,
isNotNull);
}
}
@reflectiveTest
class GatherUsedImportedElementsTaskTest extends _AbstractDartTaskTest {
UsedImportedElements usedElements;
Set<String> usedElementNames;
test_perform() {
newSource(
'/a.dart',
r'''
library lib_a;
class A {}
''');
newSource(
'/b.dart',
r'''
library lib_b;
class B {}
''');
Source source = newSource(
'/test.dart',
r'''
import 'a.dart';
import 'b.dart';
main() {
new A();
}''');
_computeUsedElements(source);
// validate
expect(usedElementNames, unorderedEquals(['A']));
}
void _computeUsedElements(Source source) {
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, USED_IMPORTED_ELEMENTS,
matcher: isGatherUsedImportedElementsTask);
usedElements = outputs[USED_IMPORTED_ELEMENTS];
usedElementNames = usedElements.elements.map((e) => e.name).toSet();
}
}
@reflectiveTest
class GatherUsedLocalElementsTaskTest extends _AbstractDartTaskTest {
List<Element> definedElements;
Set<String> definedElementNames;
UsedLocalElements usedElements;
Set<String> usedElementNames;
test_perform_forPart_afterLibraryUpdate() {
Source libSource = newSource(
'/my_lib.dart',
'''
library my_lib;
part 'my_part.dart';
foo() => null;
class _LocalClass {}
''');
Source partSource = newSource(
'/my_part.dart',
'''
part of my_lib;
bar() {
print(_LocalClass);
}
''');
AnalysisTarget libTarget = new LibrarySpecificUnit(libSource, libSource);
AnalysisTarget partTarget = new LibrarySpecificUnit(libSource, partSource);
computeResult(libTarget, USED_LOCAL_ELEMENTS);
computeResult(partTarget, USED_LOCAL_ELEMENTS);
// _LocalClass is used in my_part.dart
{
UsedLocalElements usedElements =
analysisCache.getValue(partTarget, USED_LOCAL_ELEMENTS);
expect(usedElements.elements, contains(predicate((Element e) {
return e.displayName == '_LocalClass';
})));
}
// change my_lib.dart and recompute
context.setContents(
libSource,
'''
library my_lib;
part 'my_part.dart';
String foo() => null;
class _LocalClass {}
''');
computeResult(libTarget, USED_LOCAL_ELEMENTS);
computeResult(partTarget, USED_LOCAL_ELEMENTS);
// _LocalClass should still be used in my_part.dart
{
UsedLocalElements usedElements =
analysisCache.getValue(partTarget, USED_LOCAL_ELEMENTS);
expect(usedElements.elements, contains(predicate((Element e) {
return e.displayName == '_LocalClass';
})));
}
}
test_perform_localVariable() {
Source source = newSource(
'/test.dart',
r'''
main() {
var v1 = 1;
var v2 = 2;
print(v2);
}''');
_computeUsedElements(source);
// validate
expect(definedElementNames, unorderedEquals(['main', 'v1', 'v2']));
expect(usedElementNames, unorderedEquals(['v2']));
}
test_perform_method() {
Source source = newSource(
'/test.dart',
r'''
class A {
_m1() {}
_m2() {}
}
main(A a, p) {
a._m2();
p._m3();
}
''');
_computeUsedElements(source);
// validate
expect(definedElementNames,
unorderedEquals(['A', '_m1', '_m2', 'main', 'a', 'p']));
expect(usedElementNames, unorderedEquals(['A', 'a', 'p', '_m2']));
expect(usedElements.members, unorderedEquals(['_m2', '_m3']));
}
test_perform_unresolvedImportWithPrefix() {
Source source = newSource(
'/test.dart',
r'''
import 'x' as p;
''');
_computeUsedElements(source);
// validate
expect(definedElementNames, isEmpty);
expect(usedElementNames, isEmpty);
}
void _computeUsedElements(Source source) {
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, USED_LOCAL_ELEMENTS,
matcher: isGatherUsedLocalElementsTask);
definedElements = outputs[DEFINED_ELEMENTS];
definedElementNames = definedElements.map((e) => e.name).toSet();
usedElements = outputs[USED_LOCAL_ELEMENTS];
usedElementNames = usedElements.elements.map((e) => e.name).toSet();
}
}
@reflectiveTest
class GenerateHintsTaskTest extends _AbstractDartTaskTest {
test_perform_bestPractices_missingReturn() {
Source source = newSource(
'/test.dart',
'''
int main() {
}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, HINTS, matcher: isGenerateHintsTask);
// validate
_fillErrorListener(HINTS);
errorListener.assertErrorsWithCodes(<ErrorCode>[HintCode.MISSING_RETURN]);
}
test_perform_dart2js() {
AnalysisOptionsImpl options = new AnalysisOptionsImpl();
options.dart2jsHint = true;
prepareAnalysisContext(options);
Source source = newSource(
'/test.dart',
'''
main(p) {
if (p is double) {
print('double');
}
}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, HINTS, matcher: isGenerateHintsTask);
// validate
_fillErrorListener(HINTS);
errorListener.assertErrorsWithCodes(<ErrorCode>[HintCode.IS_DOUBLE]);
}
test_perform_deadCode() {
Source source = newSource(
'/test.dart',
'''
main() {
if (false) {
print('how?');
}
}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, HINTS, matcher: isGenerateHintsTask);
// validate
_fillErrorListener(HINTS);
errorListener.assertErrorsWithCodes(<ErrorCode>[HintCode.DEAD_CODE]);
}
test_perform_disabled() {
context.analysisOptions =
new AnalysisOptionsImpl.from(context.analysisOptions)..hint = false;
Source source = newSource(
'/test.dart',
'''
int main() {
}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, HINTS, matcher: isGenerateHintsTask);
// validate
_fillErrorListener(HINTS);
errorListener.assertNoErrors();
}
test_perform_imports_duplicateImport() {
newSource(
'/a.dart',
r'''
library lib_a;
class A {}
''');
Source source = newSource(
'/test.dart',
r'''
import 'a.dart';
import 'a.dart';
main() {
new A();
}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, HINTS, matcher: isGenerateHintsTask);
// validate
_fillErrorListener(HINTS);
errorListener.assertErrorsWithCodes(<ErrorCode>[HintCode.DUPLICATE_IMPORT]);
}
test_perform_imports_unusedImport_one() {
newSource(
'/a.dart',
r'''
library lib_a;
class A {}
''');
newSource(
'/b.dart',
r'''
library lib_b;
class B {}
''');
Source source = newSource(
'/test.dart',
r'''
import 'a.dart';
import 'b.dart';
main() {
new A();
}''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, HINTS, matcher: isGenerateHintsTask);
// validate
_fillErrorListener(HINTS);
errorListener.assertErrorsWithCodes(<ErrorCode>[HintCode.UNUSED_IMPORT]);
}
test_perform_imports_unusedImport_zero() {
newSource(
'/a.dart',
r'''
library lib_a;
class A {}
''');
Source source = newSource(
'/test.dart',
r'''
import 'a.dart';
main() {
new A();
}''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, HINTS, matcher: isGenerateHintsTask);
// validate
_fillErrorListener(HINTS);
errorListener.assertNoErrors();
}
test_perform_overrideVerifier() {
Source source = newSource(
'/test.dart',
'''
class A {}
class B {
@override
m() {}
}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, HINTS, matcher: isGenerateHintsTask);
// validate
_fillErrorListener(HINTS);
errorListener.assertErrorsWithCodes(
<ErrorCode>[HintCode.OVERRIDE_ON_NON_OVERRIDING_METHOD]);
}
test_perform_todo() {
Source source = newSource(
'/test.dart',
'''
main() {
// TODO(developer) foo bar
}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, HINTS, matcher: isGenerateHintsTask);
// validate
_fillErrorListener(HINTS);
errorListener.assertErrorsWithCodes(<ErrorCode>[TodoCode.TODO]);
}
test_perform_unusedLocalElements_class() {
Source source = newSource(
'/test.dart',
'''
class _A {}
class _B {}
main() {
new _A();
}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, HINTS, matcher: isGenerateHintsTask);
// validate
_fillErrorListener(HINTS);
errorListener.assertErrorsWithCodes(<ErrorCode>[HintCode.UNUSED_ELEMENT]);
}
test_perform_unusedLocalElements_localVariable() {
Source source = newSource(
'/test.dart',
'''
main() {
var v = 42;
}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, HINTS, matcher: isGenerateHintsTask);
// validate
_fillErrorListener(HINTS);
errorListener
.assertErrorsWithCodes(<ErrorCode>[HintCode.UNUSED_LOCAL_VARIABLE]);
}
test_perform_unusedLocalElements_method() {
Source source = newSource(
'/my_lib.dart',
'''
library my_lib;
part 'my_part.dart';
class A {
_ma() {}
_mb() {}
_mc() {}
}
''');
newSource(
'/my_part.dart',
'''
part of my_lib;
f(A a) {
a._mb();
}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, HINTS, matcher: isGenerateHintsTask);
// validate
_fillErrorListener(HINTS);
errorListener.assertErrorsWithCodes(
<ErrorCode>[HintCode.UNUSED_ELEMENT, HintCode.UNUSED_ELEMENT]);
}
}
@reflectiveTest
class GenerateLintsTaskTest extends _AbstractDartTaskTest {
void enableLints() {
AnalysisOptionsImpl options = context.analysisOptions;
options.lint = true;
context.analysisOptions = options;
}
@override
void setUp() {
super.setUp();
enableLints();
setLints(context, [new GenerateLintsTaskTest_TestLinter()]);
}
@override
void tearDown() {
setLints(context, []);
super.tearDown();
}
test_camel_case_types() {
Source source = newSource(
'/test.dart',
'''
class a { }
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, LINTS, matcher: isGenerateLintsTask);
// validate
_fillErrorListener(LINTS);
errorListener.assertErrorsWithCodes(<ErrorCode>[_testLintCode]);
}
}
class GenerateLintsTaskTest_AstVisitor extends SimpleAstVisitor {
Linter linter;
GenerateLintsTaskTest_AstVisitor(this.linter);
@override
visitClassDeclaration(ClassDeclaration node) {
if (!new RegExp(r'^([_]*)([A-Z]+[a-z0-9]*)+$')
.hasMatch(node.name.toString())) {
linter.reporter.reportErrorForNode(_testLintCode, node, []);
}
}
}
class GenerateLintsTaskTest_TestLinter extends Linter {
@override
AstVisitor getVisitor() => new GenerateLintsTaskTest_AstVisitor(this);
}
@reflectiveTest
class InferInstanceMembersInUnitTaskTest extends _AbstractDartTaskTest {
test_created_resolved_unit() {
Source source = newSource(
'/test.dart',
r'''
library lib;
class A {}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVED_UNIT9);
expect(outputs[RESOLVED_UNIT9], isNotNull);
expect(outputs[CREATED_RESOLVED_UNIT9], isTrue);
}
void test_perform() {
enableStrongMode();
AnalysisTarget source = newSource(
'/test.dart',
'''
class A {
X f;
Y m(Z x) {}
}
class B extends A {
var f;
m(x) {}
}
class X {}
class Y {}
class Z {}
''');
computeResult(new LibrarySpecificUnit(source, source), RESOLVED_UNIT9,
matcher: isInferInstanceMembersInUnitTask);
CompilationUnit unit = outputs[RESOLVED_UNIT9];
VariableDeclaration field = AstFinder.getFieldInClass(unit, 'B', 'f');
MethodDeclaration method = AstFinder.getMethodInClass(unit, 'B', 'm');
DartType typeX = AstFinder.getClass(unit, 'X').element.type;
DartType typeY = AstFinder.getClass(unit, 'Y').element.type;
DartType typeZ = AstFinder.getClass(unit, 'Z').element.type;
expect(field.element.type, typeX);
expect(method.element.returnType, typeY);
expect(method.element.parameters[0].type, typeZ);
}
void test_perform_cross_library_const() {
enableStrongMode();
AnalysisTarget firstSource = newSource(
'/first.dart',
'''
library first;
const a = 'hello';
''');
AnalysisTarget secondSource = newSource(
'/second.dart',
'''
import 'first.dart';
const b = a;
class M {
String c = a;
}
''');
computeResult(
new LibrarySpecificUnit(firstSource, firstSource), RESOLVED_UNIT9,
matcher: isInferInstanceMembersInUnitTask);
CompilationUnit firstUnit = outputs[RESOLVED_UNIT9];
computeResult(
new LibrarySpecificUnit(secondSource, secondSource), RESOLVED_UNIT9);
CompilationUnit secondUnit = outputs[RESOLVED_UNIT9];
VariableDeclaration variableA =
AstFinder.getTopLevelVariable(firstUnit, 'a');
VariableDeclaration variableB =
AstFinder.getTopLevelVariable(secondUnit, 'b');
VariableDeclaration variableC =
AstFinder.getFieldInClass(secondUnit, 'M', 'c');
InterfaceType stringType = context.typeProvider.stringType;
expect(variableA.element.type, stringType);
expect(variableB.element.type, stringType);
expect(variableB.initializer.staticType, stringType);
expect(variableC.element.type, stringType);
expect(variableC.initializer.staticType, stringType);
}
void test_perform_reresolution() {
enableStrongMode();
AnalysisTarget source = newSource(
'/test.dart',
'''
const topLevel = '';
class C {
String field = topLevel;
}
''');
computeResult(new LibrarySpecificUnit(source, source), RESOLVED_UNIT9);
CompilationUnit unit = outputs[RESOLVED_UNIT9];
VariableDeclaration topLevelDecl =
AstFinder.getTopLevelVariable(unit, 'topLevel');
VariableDeclaration fieldDecl =
AstFinder.getFieldInClass(unit, 'C', 'field');
VariableElement topLevel = topLevelDecl.name.staticElement;
VariableElement field = fieldDecl.name.staticElement;
InterfaceType stringType = context.typeProvider.stringType;
expect(topLevel.type, stringType);
expect(field.type, stringType);
expect(fieldDecl.initializer.staticType, stringType);
}
}
@reflectiveTest
class InferStaticVariableTypesInUnitTaskTest extends _AbstractDartTaskTest {
test_created_resolved_unit() {
Source source = newSource(
'/test.dart',
r'''
library lib;
class A {}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVED_UNIT7);
expect(outputs[RESOLVED_UNIT7], isNotNull);
expect(outputs[CREATED_RESOLVED_UNIT7], isTrue);
}
void test_perform_const_field() {
enableStrongMode();
AnalysisTarget source = newSource(
'/test.dart',
'''
class M {
static const X = "";
}
''');
computeResult(new LibrarySpecificUnit(source, source), RESOLVED_UNIT7,
matcher: isInferStaticVariableTypesInUnitTask);
CompilationUnit unit = outputs[RESOLVED_UNIT7];
VariableDeclaration declaration = AstFinder.getFieldInClass(unit, 'M', 'X');
InterfaceType stringType = context.typeProvider.stringType;
expect(declaration.element.type, stringType);
}
void test_perform_nestedDeclarations() {
enableStrongMode();
AnalysisTarget source = newSource(
'/test.dart',
'''
var f = (int x) {
int squared(int value) => value * value;
var xSquared = squared(x);
return xSquared;
};
''');
computeResult(new LibrarySpecificUnit(source, source), RESOLVED_UNIT7,
matcher: isInferStaticVariableTypesInUnitTask);
}
void test_perform_recursive() {
enableStrongMode();
AnalysisTarget firstSource = newSource(
'/first.dart',
'''
import 'second.dart';
var a = new M();
var c = b;
''');
AnalysisTarget secondSource = newSource(
'/second.dart',
'''
import 'first.dart';
var b = a;
class M {}
''');
computeResult(
new LibrarySpecificUnit(firstSource, firstSource), RESOLVED_UNIT7,
matcher: isInferStaticVariableTypesInUnitTask);
CompilationUnit firstUnit = outputs[RESOLVED_UNIT7];
computeResult(
new LibrarySpecificUnit(secondSource, secondSource), RESOLVED_UNIT7);
CompilationUnit secondUnit = outputs[RESOLVED_UNIT7];
VariableDeclaration variableA =
AstFinder.getTopLevelVariable(firstUnit, 'a');
VariableDeclaration variableB =
AstFinder.getTopLevelVariable(secondUnit, 'b');
VariableDeclaration variableC =
AstFinder.getTopLevelVariable(firstUnit, 'c');
ClassDeclaration classM = AstFinder.getClass(secondUnit, 'M');
DartType typeM = classM.element.type;
expect(variableA.element.type, typeM);
expect(variableB.element.type, typeM);
expect(variableB.initializer.staticType, typeM);
expect(variableC.element.type, typeM);
expect(variableC.initializer.staticType, typeM);
}
void test_perform_simple() {
enableStrongMode();
AnalysisTarget source = newSource(
'/test.dart',
'''
var X = 1;
var Y = () {
return 1 + X;
};
''');
computeResult(new LibrarySpecificUnit(source, source), RESOLVED_UNIT7,
matcher: isInferStaticVariableTypesInUnitTask);
CompilationUnit unit = outputs[RESOLVED_UNIT7];
TopLevelVariableDeclaration declaration = unit.declarations[1];
FunctionExpression function =
declaration.variables.variables[0].initializer;
BlockFunctionBody body = function.body;
ReturnStatement statement = body.block.statements[0];
Expression expression = statement.expression;
InterfaceType intType = context.typeProvider.intType;
expect(expression.staticType, intType);
}
}
@reflectiveTest
class InferStaticVariableTypeTaskTest extends _AbstractDartTaskTest {
void test_getDeclaration_staticField() {
AnalysisTarget source = newSource(
'/test.dart',
'''
class C {
var field = '';
}
''');
computeResult(new LibrarySpecificUnit(source, source), RESOLVED_UNIT5);
CompilationUnit unit = outputs[RESOLVED_UNIT5];
VariableDeclaration declaration =
AstFinder.getFieldInClass(unit, 'C', 'field');
VariableElement variable = declaration.name.staticElement;
InferStaticVariableTypeTask inferTask =
new InferStaticVariableTypeTask(task.context, variable);
expect(inferTask.getDeclaration(unit), declaration);
}
void test_getDeclaration_topLevel() {
AnalysisTarget source = newSource(
'/test.dart',
'''
var topLevel = '';
''');
computeResult(new LibrarySpecificUnit(source, source), RESOLVED_UNIT5);
CompilationUnit unit = outputs[RESOLVED_UNIT5];
VariableDeclaration declaration =
AstFinder.getTopLevelVariable(unit, 'topLevel');
VariableElement variable = declaration.name.staticElement;
InferStaticVariableTypeTask inferTask =
new InferStaticVariableTypeTask(task.context, variable);
expect(inferTask.getDeclaration(unit), declaration);
}
void test_perform() {
enableStrongMode();
AnalysisTarget source = newSource(
'/test3.dart',
'''
var topLevel3 = '';
class C {
var field3 = topLevel3;
}
''');
computeResult(new LibrarySpecificUnit(source, source), RESOLVED_UNIT5);
CompilationUnit unit = outputs[RESOLVED_UNIT5];
VariableDeclaration topLevelDecl =
AstFinder.getTopLevelVariable(unit, 'topLevel3');
VariableDeclaration fieldDecl =
AstFinder.getFieldInClass(unit, 'C', 'field3');
VariableElement topLevel = topLevelDecl.name.staticElement;
VariableElement field = fieldDecl.name.staticElement;
computeResult(field, INFERRED_STATIC_VARIABLE,
matcher: isInferStaticVariableTypeTask);
InterfaceType stringType = context.typeProvider.stringType;
expect(topLevel.type, stringType);
expect(field.type, stringType);
expect(fieldDecl.initializer.staticType, stringType);
}
void test_perform_const() {
enableStrongMode();
AnalysisTarget source = newSource(
'/test.dart',
'''
const topLevel = "hello";
class C {
var field = topLevel;
}
''');
computeResult(new LibrarySpecificUnit(source, source), RESOLVED_UNIT5);
CompilationUnit unit = outputs[RESOLVED_UNIT5];
VariableElement topLevel =
AstFinder.getTopLevelVariable(unit, 'topLevel').name.staticElement;
VariableElement field =
AstFinder.getFieldInClass(unit, 'C', 'field').name.staticElement;
computeResult(field, INFERRED_STATIC_VARIABLE,
matcher: isInferStaticVariableTypeTask);
InterfaceType stringType = context.typeProvider.stringType;
expect(topLevel.type, stringType);
expect(field.type, stringType);
}
void test_perform_cycle() {
enableStrongMode();
AnalysisTarget source = newSource(
'/test.dart',
'''
var piFirst = true;
var pi = piFirst ? 3.14 : tau / 2;
var tau = piFirst ? pi * 2 : 6.28;
''');
computeResult(new LibrarySpecificUnit(source, source), RESOLVED_UNIT5);
CompilationUnit unit = outputs[RESOLVED_UNIT5];
VariableElement piFirst =
AstFinder.getTopLevelVariable(unit, 'piFirst').name.staticElement;
VariableElement pi =
AstFinder.getTopLevelVariable(unit, 'pi').name.staticElement;
VariableElement tau =
AstFinder.getTopLevelVariable(unit, 'tau').name.staticElement;
computeResult(piFirst, INFERRED_STATIC_VARIABLE,
matcher: isInferStaticVariableTypeTask);
expect(piFirst.type, context.typeProvider.boolType);
expect(pi.type.isDynamic, isTrue);
expect(tau.type.isDynamic, isTrue);
}
void test_perform_error() {
enableStrongMode();
AnalysisTarget source = newSource(
'/test.dart',
'''
var a = '' / null;
''');
computeResult(new LibrarySpecificUnit(source, source), RESOLVED_UNIT5);
CompilationUnit unit = outputs[RESOLVED_UNIT5];
VariableElement a =
AstFinder.getTopLevelVariable(unit, 'a').name.staticElement;
computeResult(a, INFERRED_STATIC_VARIABLE,
matcher: isInferStaticVariableTypeTask);
expect(a.type.isDynamic, isTrue);
}
void test_perform_null() {
enableStrongMode();
AnalysisTarget source = newSource(
'/test.dart',
'''
var a = null;
''');
computeResult(new LibrarySpecificUnit(source, source), RESOLVED_UNIT5);
CompilationUnit unit = outputs[RESOLVED_UNIT5];
VariableElement a =
AstFinder.getTopLevelVariable(unit, 'a').name.staticElement;
computeResult(a, INFERRED_STATIC_VARIABLE,
matcher: isInferStaticVariableTypeTask);
expect(a.type.isDynamic, isTrue);
}
}
@reflectiveTest
class LibraryErrorsReadyTaskTest extends _AbstractDartTaskTest {
test_perform() {
Source library = newSource(
'/lib.dart',
r'''
library lib;
part 'part1.dart';
part 'part2.dart';
X v1;
''');
Source part1 = newSource(
'/part1.dart',
r'''
part of lib;
X v2;
''');
Source part2 = newSource(
'/part2.dart',
r'''
part of lib;
X v3;
''');
computeResult(library, LIBRARY_ERRORS_READY,
matcher: isLibraryErrorsReadyTask);
expect(outputs, hasLength(1));
bool ready = outputs[LIBRARY_ERRORS_READY];
expect(ready, isTrue);
expect(context.getErrors(library).errors, hasLength(1));
expect(context.getErrors(part1).errors, hasLength(1));
expect(context.getErrors(part2).errors, hasLength(1));
}
}
@reflectiveTest
class LibraryUnitErrorsTaskTest extends _AbstractDartTaskTest {
test_perform_definingCompilationUnit() {
AnalysisTarget library =
newSource('/test.dart', 'library test; import "dart:math";');
computeResult(
new LibrarySpecificUnit(library, library), LIBRARY_UNIT_ERRORS,
matcher: isLibraryUnitErrorsTask);
expect(outputs, hasLength(1));
List<AnalysisError> errors = outputs[LIBRARY_UNIT_ERRORS];
expect(errors, hasLength(1));
}
test_perform_partInSingleLibrary() {
AnalysisTarget library =
newSource('/lib.dart', 'library test; part "part.dart";');
AnalysisTarget part = newSource('/part.dart', 'part of test;');
computeResult(new LibrarySpecificUnit(library, part), LIBRARY_UNIT_ERRORS,
matcher: isLibraryUnitErrorsTask);
expect(outputs, hasLength(1));
List<AnalysisError> errors = outputs[LIBRARY_UNIT_ERRORS];
expect(errors, hasLength(0));
}
}
@reflectiveTest
class ParseDartTaskTest extends _AbstractDartTaskTest {
Source source;
test_perform() {
_performParseTask(r'''
part of lib;
class B {}''');
expect(outputs, hasLength(9));
expect(outputs[EXPLICITLY_IMPORTED_LIBRARIES], hasLength(0));
expect(outputs[EXPORTED_LIBRARIES], hasLength(0));
_assertHasCore(outputs[IMPORTED_LIBRARIES], 1);
expect(outputs[INCLUDED_PARTS], hasLength(0));
expect(outputs[LIBRARY_SPECIFIC_UNITS], hasLength(1));
expect(outputs[PARSE_ERRORS], hasLength(0));
expect(outputs[PARSED_UNIT], isNotNull);
expect(outputs[SOURCE_KIND], SourceKind.PART);
expect(outputs[UNITS], hasLength(1));
}
test_perform_computeSourceKind_noDirectives_hasContainingLibrary() {
// Parse "lib.dart" to let the context know that "test.dart" is included.
computeResult(
newSource(
'/lib.dart',
r'''
library lib;
part 'test.dart';
'''),
PARSED_UNIT);
// If there are no the "part of" directive, then it is not a part.
_performParseTask('');
expect(outputs[SOURCE_KIND], SourceKind.LIBRARY);
}
test_perform_computeSourceKind_noDirectives_noContainingLibrary() {
_performParseTask('');
expect(outputs[SOURCE_KIND], SourceKind.LIBRARY);
}
test_perform_doesNotExist() {
_performParseTask(null);
expect(outputs, hasLength(9));
expect(outputs[EXPLICITLY_IMPORTED_LIBRARIES], hasLength(0));
expect(outputs[EXPORTED_LIBRARIES], hasLength(0));
_assertHasCore(outputs[IMPORTED_LIBRARIES], 1);
expect(outputs[INCLUDED_PARTS], hasLength(0));
expect(outputs[LIBRARY_SPECIFIC_UNITS], hasLength(1));
expect(outputs[PARSE_ERRORS], hasLength(0));
expect(outputs[PARSED_UNIT], isNotNull);
expect(outputs[SOURCE_KIND], SourceKind.LIBRARY);
expect(outputs[UNITS], hasLength(1));
}
test_perform_enableAsync_false() {
AnalysisOptionsImpl options = new AnalysisOptionsImpl();
options.enableAsync = false;
prepareAnalysisContext(options);
_performParseTask(r'''
import 'dart:async';
class B {void foo() async {}}''');
expect(outputs, hasLength(9));
expect(outputs[EXPLICITLY_IMPORTED_LIBRARIES], hasLength(1));
expect(outputs[EXPORTED_LIBRARIES], hasLength(0));
_assertHasCore(outputs[IMPORTED_LIBRARIES], 2);
expect(outputs[INCLUDED_PARTS], hasLength(0));
expect(outputs[LIBRARY_SPECIFIC_UNITS], hasLength(1));
expect(outputs[PARSE_ERRORS], hasLength(1));
expect(outputs[PARSED_UNIT], isNotNull);
expect(outputs[SOURCE_KIND], SourceKind.LIBRARY);
expect(outputs[UNITS], hasLength(1));
}
test_perform_enableAsync_true() {
_performParseTask(r'''
import 'dart:async';
class B {void foo() async {}}''');
expect(outputs, hasLength(9));
expect(outputs[EXPLICITLY_IMPORTED_LIBRARIES], hasLength(1));
expect(outputs[EXPORTED_LIBRARIES], hasLength(0));
_assertHasCore(outputs[IMPORTED_LIBRARIES], 2);
expect(outputs[INCLUDED_PARTS], hasLength(0));
expect(outputs[LIBRARY_SPECIFIC_UNITS], hasLength(1));
expect(outputs[PARSE_ERRORS], hasLength(0));
expect(outputs[PARSED_UNIT], isNotNull);
expect(outputs[SOURCE_KIND], SourceKind.LIBRARY);
expect(outputs[UNITS], hasLength(1));
}
test_perform_flushTokenStream() {
_performParseTask(r'''
class Test {}
''');
expect(analysisCache.getState(source, TOKEN_STREAM), CacheState.FLUSHED);
}
test_perform_invalidDirectives() {
_performParseTask(r'''
library lib;
import '/does/not/exist.dart';
import '://invaliduri.dart';
export '${a}lib3.dart';
part 'part.dart';
class A {}''');
expect(outputs, hasLength(9));
expect(outputs[EXPLICITLY_IMPORTED_LIBRARIES], hasLength(1));
expect(outputs[EXPORTED_LIBRARIES], hasLength(0));
_assertHasCore(outputs[IMPORTED_LIBRARIES], 2);
expect(outputs[INCLUDED_PARTS], hasLength(1));
expect(outputs[LIBRARY_SPECIFIC_UNITS], hasLength(2));
expect(outputs[PARSE_ERRORS], hasLength(2));
expect(outputs[PARSED_UNIT], isNotNull);
expect(outputs[SOURCE_KIND], SourceKind.LIBRARY);
expect(outputs[UNITS], hasLength(2));
}
test_perform_library() {
_performParseTask(r'''
library lib;
import 'lib2.dart';
export 'lib3.dart';
part 'part.dart';
class A {''');
expect(outputs, hasLength(9));
expect(outputs[EXPLICITLY_IMPORTED_LIBRARIES], hasLength(1));
expect(outputs[EXPORTED_LIBRARIES], hasLength(1));
_assertHasCore(outputs[IMPORTED_LIBRARIES], 2);
expect(outputs[INCLUDED_PARTS], hasLength(1));
expect(outputs[LIBRARY_SPECIFIC_UNITS], hasLength(2));
expect(outputs[PARSE_ERRORS], hasLength(1));
expect(outputs[PARSED_UNIT], isNotNull);
expect(outputs[SOURCE_KIND], SourceKind.LIBRARY);
expect(outputs[UNITS], hasLength(2));
}
test_perform_library_selfReferenceAsPart() {
_performParseTask(r'''
library lib;
part 'test.dart';
''');
expect(outputs[INCLUDED_PARTS], unorderedEquals(<Source>[source]));
}
test_perform_part() {
_performParseTask(r'''
part of lib;
class B {}''');
expect(outputs, hasLength(9));
expect(outputs[EXPLICITLY_IMPORTED_LIBRARIES], hasLength(0));
expect(outputs[EXPORTED_LIBRARIES], hasLength(0));
_assertHasCore(outputs[IMPORTED_LIBRARIES], 1);
expect(outputs[INCLUDED_PARTS], hasLength(0));
expect(outputs[LIBRARY_SPECIFIC_UNITS], hasLength(1));
expect(outputs[PARSE_ERRORS], hasLength(0));
expect(outputs[PARSED_UNIT], isNotNull);
expect(outputs[SOURCE_KIND], SourceKind.PART);
expect(outputs[UNITS], hasLength(1));
}
void _performParseTask(String content) {
if (content == null) {
source = resourceProvider.getFile('/test.dart').createSource();
} else {
source = newSource('/test.dart', content);
}
computeResult(source, PARSED_UNIT, matcher: isParseDartTask);
}
static void _assertHasCore(List<Source> sources, int lenght) {
expect(sources, hasLength(lenght));
expect(sources, contains(predicate((Source s) {
return s.fullName.endsWith('core.dart');
})));
}
}
@reflectiveTest
class PartiallyResolveUnitReferencesTaskTest extends _AbstractDartTaskTest {
test_perform_propagable() {
enableStrongMode();
Source source = newSource(
'/test.dart',
'''
const t1 = 1;
final t2 = 2;
var t3 = 3;
final t4;
class C {
static const fs1 = 1;
static final fs2 = 2;
static var fs3 = 3;
static final fs4;
const fi1 = 1;
final fi2 = 2;
var fi3 = 3;
final fi4;
}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, PROPAGABLE_VARIABLES_IN_UNIT,
matcher: isPartiallyResolveUnitReferencesTask);
// PROPAGABLE_VARIABLES_IN_UNIT
List<VariableElement> variables = outputs[PROPAGABLE_VARIABLES_IN_UNIT];
expect(variables.map((v) => v.displayName),
unorderedEquals(['t1', 't2', 'fs1', 'fs2', 'fi1', 'fi2']));
}
test_perform_strong_importExport() {
newSource(
'/a.dart',
'''
library a;
class A<T> {
T m() {}
}
''');
newSource(
'/b.dart',
'''
library b;
export 'a.dart';
''');
Source sourceC = newSource(
'/c.dart',
'''
library c;
import 'b.dart';
main() {
new A<int>().m();
}
''');
computeResult(new LibrarySpecificUnit(sourceC, sourceC), RESOLVED_UNIT5,
matcher: isPartiallyResolveUnitReferencesTask);
// validate
expect(outputs[INFERABLE_STATIC_VARIABLES_IN_UNIT], hasLength(0));
CompilationUnit unit = outputs[RESOLVED_UNIT5];
expect(unit, isNotNull);
FunctionDeclaration mainFunction = unit.declarations[0];
expect(mainFunction.element, isNotNull);
BlockFunctionBody body = mainFunction.functionExpression.body;
List<Statement> statements = body.block.statements;
ExpressionStatement statement = statements[0];
MethodInvocation invocation = statement.expression;
MethodElement methodElement = invocation.methodName.staticElement;
expect(methodElement, isNull);
}
test_perform_strong_inferable() {
enableStrongMode();
Source source = newSource(
'/test.dart',
'''
int a = b;
int b = c;
var d = 0;
class A {}
class C {
static final f = '';
var g = 0;
}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVED_UNIT5,
matcher: isPartiallyResolveUnitReferencesTask);
CompilationUnit unit = outputs[RESOLVED_UNIT5];
// INFERABLE_STATIC_VARIABLES_IN_UNIT
{
List<VariableElement> variables =
outputs[INFERABLE_STATIC_VARIABLES_IN_UNIT];
expect(variables, hasLength(4));
expect(variables.map((v) => v.displayName),
unorderedEquals(['a', 'b', 'd', 'f']));
}
// Test the state of the AST
TopLevelVariableDeclaration a = unit.declarations[0];
VariableDeclaration variableA = a.variables.variables[0];
SimpleIdentifier initializer = variableA.initializer;
expect(initializer.staticElement, isNotNull);
}
test_perform_strong_notResolved() {
enableStrongMode();
Source source = newSource(
'/test.dart',
'''
int A;
f1() {
A;
}
var f2 = () {
A;
void f3() {
A;
}
}
class C {
C() {
A;
}
m() {
A;
}
}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVED_UNIT5,
matcher: isPartiallyResolveUnitReferencesTask);
CompilationUnit unit = outputs[RESOLVED_UNIT5];
NodeList<CompilationUnitMember> declarations = unit.declarations;
void expectReference(BlockFunctionBody body, bool isResolved) {
ExpressionStatement statement = body.block.statements[0];
SimpleIdentifier reference = statement.expression;
expect(reference.staticElement, isResolved ? isNotNull : isNull);
}
//
// The reference to 'A' in 'f1' should not be resolved.
//
FunctionDeclaration f1 = declarations[1];
expectReference(f1.functionExpression.body, false);
//
// The references to 'A' in 'f2' should be resolved.
//
TopLevelVariableDeclaration f2 = declarations[2];
FunctionExpression expression2 = f2.variables.variables[0].initializer;
BlockFunctionBody body2 = expression2.body;
expectReference(body2, true);
FunctionDeclarationStatement statement2 = body2.block.statements[1];
BlockFunctionBody innerBody =
statement2.functionDeclaration.functionExpression.body;
expectReference(innerBody, true);
//
// The references to 'A' in 'C' should not be resolved.
//
ClassDeclaration c = declarations[3];
NodeList<ClassMember> members = c.members;
ConstructorDeclaration constructor = members[0];
expectReference(constructor.body, false);
MethodDeclaration method = members[1];
expectReference(method.body, false);
}
}
@reflectiveTest
class PropagateVariableTypesInUnitTaskTest extends _AbstractDartTaskTest {
test_created_resolved_unit() {
Source source = newSource(
'/test.dart',
r'''
library lib;
class A {}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVED_UNIT6);
expect(outputs[RESOLVED_UNIT6], isNotNull);
expect(outputs[CREATED_RESOLVED_UNIT6], isTrue);
}
void test_perform_cycle() {
AnalysisTarget source = newSource(
'/test.dart',
'''
final piFirst = true;
final pi = piFirst ? 3.14 : tau / 2;
final tau = piFirst ? pi * 2 : 6.28;
''');
// compute
computeResult(new LibrarySpecificUnit(source, source), RESOLVED_UNIT6,
matcher: isPropagateVariableTypesInUnitTask);
CompilationUnit unit = outputs[RESOLVED_UNIT6];
// verify
TopLevelVariableElement piFirst =
AstFinder.getTopLevelVariableElement(unit, 'piFirst');
TopLevelVariableElement pi =
AstFinder.getTopLevelVariableElement(unit, 'pi');
TopLevelVariableElement tau =
AstFinder.getTopLevelVariableElement(unit, 'tau');
expect(piFirst.propagatedType, context.typeProvider.boolType);
expect(pi.propagatedType, isNull);
expect(tau.propagatedType, isNull);
}
void test_perform_topLevel() {
AnalysisTarget source = newSource(
'/test.dart',
'''
//final a = b + c.length;
final a = b;
final b = 1;
final c = '2';
''');
// compute
computeResult(new LibrarySpecificUnit(source, source), RESOLVED_UNIT6,
matcher: isPropagateVariableTypesInUnitTask);
CompilationUnit unit = outputs[RESOLVED_UNIT6];
// verify
InterfaceType intType = context.typeProvider.intType;
InterfaceType stringType = context.typeProvider.stringType;
expect(AstFinder.getTopLevelVariableElement(unit, 'a').propagatedType,
intType);
expect(AstFinder.getTopLevelVariableElement(unit, 'b').propagatedType,
intType);
expect(AstFinder.getTopLevelVariableElement(unit, 'c').propagatedType,
stringType);
}
}
@reflectiveTest
class PropagateVariableTypeTaskTest extends _AbstractDartTaskTest {
void test_perform_cycle() {
AnalysisTarget source = newSource(
'/test.dart',
'''
final piFirst = true;
final pi = piFirst ? 3.14 : tau / 2;
final tau = piFirst ? pi * 2 : 6.28;
''');
computeResult(new LibrarySpecificUnit(source, source), RESOLVED_UNIT5);
CompilationUnit unit = outputs[RESOLVED_UNIT5];
TopLevelVariableElement piFirst =
AstFinder.getTopLevelVariableElement(unit, 'piFirst');
TopLevelVariableElement pi =
AstFinder.getTopLevelVariableElement(unit, 'pi');
TopLevelVariableElement tau =
AstFinder.getTopLevelVariableElement(unit, 'tau');
// compute
computeResult(piFirst, PROPAGATED_VARIABLE,
matcher: isPropagateVariableTypeTask);
expect(piFirst.propagatedType, context.typeProvider.boolType);
expect(pi.propagatedType, isNull);
expect(tau.propagatedType, isNull);
}
void test_perform_null() {
enableStrongMode();
AnalysisTarget source = newSource(
'/test.dart',
'''
var a = null;
''');
computeResult(new LibrarySpecificUnit(source, source), RESOLVED_UNIT5);
CompilationUnit unit = outputs[RESOLVED_UNIT5];
TopLevelVariableElement a = AstFinder.getTopLevelVariableElement(unit, 'a');
// compute
computeResult(a, PROPAGATED_VARIABLE, matcher: isPropagateVariableTypeTask);
expect(a.propagatedType, isNull);
}
void test_perform_topLevel() {
AnalysisTarget source = newSource(
'/test.dart',
'''
final a = b + c.length;
final b = 1;
final c = '2';
''');
computeResult(new LibrarySpecificUnit(source, source), RESOLVED_UNIT5);
CompilationUnit unit = outputs[RESOLVED_UNIT5];
TopLevelVariableElement elementA =
AstFinder.getTopLevelVariableElement(unit, 'a');
TopLevelVariableElement elementB =
AstFinder.getTopLevelVariableElement(unit, 'b');
TopLevelVariableElement elementC =
AstFinder.getTopLevelVariableElement(unit, 'c');
// compute
computeResult(elementA, PROPAGATED_VARIABLE,
matcher: isPropagateVariableTypeTask);
InterfaceType intType = context.typeProvider.intType;
InterfaceType stringType = context.typeProvider.stringType;
expect(elementA.propagatedType, intType);
expect(elementB.propagatedType, intType);
expect(elementC.propagatedType, stringType);
}
}
@reflectiveTest
class ResolveInstanceFieldsInUnitTaskTest extends _AbstractDartTaskTest {
@override
void setUp() {
super.setUp();
enableStrongMode();
}
test_created_resolved_unit() {
Source source = newSource(
'/test.dart',
r'''
library lib;
class A {}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVED_UNIT8);
expect(outputs[RESOLVED_UNIT8], isNotNull);
expect(outputs[CREATED_RESOLVED_UNIT8], isTrue);
}
// Test inference of instance fields across units
void test_perform_inference_cross_unit_instance() {
List<Source> sources = newSources({
'/a.dart': '''
import 'b.dart';
class A {
final a2 = new B().b2;
}
''',
'/b.dart': '''
class B {
final b2 = 1;
}
''',
'/main.dart': '''
import "a.dart";
test1() {
int x = 0;
x = new A().a2;
}
'''
});
InterfaceType intType = context.typeProvider.intType;
DartType dynamicType = context.typeProvider.dynamicType;
computeResult(
new LibrarySpecificUnit(sources[1], sources[1]), RESOLVED_UNIT8);
CompilationUnit unit1 = outputs[RESOLVED_UNIT8];
// B.b2 shoud be resolved on the rhs, but not yet inferred.
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit1, "B", "b2"), dynamicType, intType);
computeResult(
new LibrarySpecificUnit(sources[0], sources[0]), RESOLVED_UNIT8);
CompilationUnit unit0 = outputs[RESOLVED_UNIT8];
// B.b2 should now be fully resolved and inferred.
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit1, "B", "b2"), intType, intType);
// A.a2 should now be resolved on the rhs, but not yet inferred.
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit0, "A", "a2"), dynamicType, intType);
computeResult(
new LibrarySpecificUnit(sources[2], sources[2]), RESOLVED_UNIT8);
// A.a2 should now be fully resolved and inferred.
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit0, "A", "a2"), intType, intType);
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit1, "B", "b2"), intType, intType);
}
// Test inference of instance fields across units
void test_perform_inference_cross_unit_instance_cyclic() {
List<Source> sources = newSources({
'/a.dart': '''
import 'b.dart';
class A {
final a2 = new B().b2;
}
''',
'/b.dart': '''
import 'a.dart';
class B {
final b2 = 1;
}
''',
'/main.dart': '''
import "a.dart";
test1() {
int x = 0;
x = new A().a2;
}
'''
});
DartType dynamicType = context.typeProvider.dynamicType;
computeResult(
new LibrarySpecificUnit(sources[0], sources[0]), RESOLVED_UNIT8);
CompilationUnit unit0 = outputs[RESOLVED_UNIT8];
// A.a2 should now be resolved on the rhs, but not yet inferred.
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit0, "A", "a2"), dynamicType, dynamicType);
computeResult(
new LibrarySpecificUnit(sources[2], sources[2]), RESOLVED_UNIT8);
// A.a2 should now be fully resolved and inferred (but not re-resolved).
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit0, "A", "a2"), dynamicType, dynamicType);
}
// Test inference of instance fields across units with cycles
void test_perform_inference_cross_unit_static_instance() {
List<Source> sources = newSources({
'/a.dart': '''
import 'b.dart';
class A {
static final a1 = B.b1;
final a2 = new B().b2;
}
''',
'/b.dart': '''
class B {
static final b1 = 1;
final b2 = 1;
}
''',
'/main.dart': '''
import "a.dart";
test1() {
int x = 0;
// inference in A now works.
x = A.a1;
x = new A().a2;
}
'''
});
InterfaceType intType = context.typeProvider.intType;
DartType dynamicType = context.typeProvider.dynamicType;
computeResult(
new LibrarySpecificUnit(sources[1], sources[1]), RESOLVED_UNIT8);
CompilationUnit unit1 = outputs[RESOLVED_UNIT8];
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit1, "B", "b1"), intType, intType);
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit1, "B", "b2"), dynamicType, intType);
computeResult(
new LibrarySpecificUnit(sources[0], sources[0]), RESOLVED_UNIT8);
CompilationUnit unit0 = outputs[RESOLVED_UNIT8];
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit0, "A", "a1"), intType, intType);
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit0, "A", "a2"), dynamicType, intType);
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit1, "B", "b1"), intType, intType);
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit1, "B", "b2"), intType, intType);
computeResult(
new LibrarySpecificUnit(sources[2], sources[2]), RESOLVED_UNIT8);
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit0, "A", "a1"), intType, intType);
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit0, "A", "a2"), intType, intType);
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit1, "B", "b1"), intType, intType);
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit1, "B", "b2"), intType, intType);
}
// Test inference between static and instance fields
void test_perform_inference_instance() {
List<Source> sources = newSources({
'/a.dart': '''
import 'b.dart';
class A {
final a2 = new B().b2;
}
class B {
final b2 = 1;
}
''',
'/main.dart': '''
import "a.dart";
test1() {
int x = 0;
x = new A().a2;
}
'''
});
InterfaceType intType = context.typeProvider.intType;
DartType dynamicType = context.typeProvider.dynamicType;
computeResult(
new LibrarySpecificUnit(sources[0], sources[0]), RESOLVED_UNIT8);
CompilationUnit unit0 = outputs[RESOLVED_UNIT8];
// A.a2 should now be resolved on the rhs, but not yet inferred.
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit0, "A", "a2"), dynamicType, dynamicType);
// B.b2 shoud be resolved on the rhs, but not yet inferred.
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit0, "B", "b2"), dynamicType, intType);
computeResult(
new LibrarySpecificUnit(sources[1], sources[1]), RESOLVED_UNIT8);
// A.a2 should now be fully resolved and inferred (but not re-resolved).
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit0, "A", "a2"), dynamicType, dynamicType);
// B.b2 should now be fully resolved and inferred.
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit0, "B", "b2"), intType, intType);
}
}
@reflectiveTest
class ResolveLibraryTaskTest extends _AbstractDartTaskTest {
test_perform() {
Source sourceLib = newSource(
'/my_lib.dart',
'''
library my_lib;
const a = new A();
class A {
const A();
}
@a
class C {}
''');
computeResult(sourceLib, LIBRARY_ELEMENT, matcher: isResolveLibraryTask);
// validate
LibraryElement library = outputs[LIBRARY_ELEMENT];
ClassElement classC = library.getType('C');
List<ElementAnnotation> metadata = classC.metadata;
expect(metadata, hasLength(1));
ElementAnnotation annotation = metadata[0];
expect(annotation, isNotNull);
expect((annotation as ElementAnnotationImpl).evaluationResult, isNotNull);
}
}
@reflectiveTest
class ResolveLibraryTypeNamesTaskTest extends _AbstractDartTaskTest {
test_perform() {
Source sourceLib = newSource(
'/my_lib.dart',
'''
library my_lib;
part 'my_part.dart';
class A {}
class B extends A {}
''');
newSource(
'/my_part.dart',
'''
part of my_lib;
class C extends A {}
''');
computeResult(sourceLib, LIBRARY_ELEMENT5,
matcher: isResolveLibraryTypeNamesTask);
// validate
LibraryElement library = outputs[LIBRARY_ELEMENT5];
{
ClassElement classB = library.getType('B');
expect(classB.supertype.displayName, 'A');
}
{
ClassElement classC = library.getType('C');
expect(classC.supertype.displayName, 'A');
}
expect(library.loadLibraryFunction, isNotNull);
}
test_perform_external() {
Source sourceA = newSource(
'/a.dart',
'''
library a;
import 'b.dart';
class A extends B {}
''');
newSource(
'/b.dart',
'''
library b;
class B {}
''');
// The reference A to B should be resolved, but there's no requirement that
// the full class hierarchy be resolved.
computeResult(sourceA, LIBRARY_ELEMENT5,
matcher: isResolveLibraryTypeNamesTask);
// validate
LibraryElement library = outputs[LIBRARY_ELEMENT5];
{
ClassElement clazz = library.getType('A');
expect(clazz.displayName, 'A');
clazz = clazz.supertype.element;
expect(clazz.displayName, 'B');
}
}
}
@reflectiveTest
class ResolveUnitTaskTest extends _AbstractDartTaskTest {
test_created_resolved_unit() {
Source source = newSource(
'/test.dart',
r'''
library lib;
class A {}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVED_UNIT10);
expect(outputs[RESOLVED_UNIT10], isNotNull);
expect(outputs[CREATED_RESOLVED_UNIT10], isTrue);
}
void test_perform() {
AnalysisTarget source = newSource(
'/test.dart',
'''
void f() {
var c = new C();
c.m();
}
class C {
void m() {
f();
}
}
''');
computeResult(new LibrarySpecificUnit(source, source), RESOLVED_UNIT10,
matcher: isResolveUnitTask);
CompilationUnit unit = outputs[RESOLVED_UNIT10];
FunctionDeclaration f = unit.declarations[0];
_assertResolved(f.functionExpression.body);
MethodDeclaration m = (unit.declarations[1] as ClassDeclaration).members[0];
_assertResolved(m.body);
expect(outputs[RESOLVE_UNIT_ERRORS], hasLength(0));
}
void test_perform_ensurePropagatedVariableTypes() {
newSource(
'/lib.dart',
'''
class A {
final v = 1;
}
''');
AnalysisTarget source = newSource(
'/test.dart',
'''
import 'lib.dart';
main(A a) {
a.v.isEven;
}
''');
computeResult(new LibrarySpecificUnit(source, source), RESOLVED_UNIT10,
matcher: isResolveUnitTask);
expect(outputs[RESOLVE_UNIT_ERRORS], hasLength(0));
CompilationUnit unit = outputs[RESOLVED_UNIT10];
FunctionDeclaration main = unit.declarations[0];
BlockFunctionBody body = main.functionExpression.body;
ExpressionStatement statement = body.block.statements.single;
Expression expression = statement.expression;
expect(expression.bestType, context.typeProvider.boolType);
}
void _assertResolved(FunctionBody body) {
ResolutionVerifier verifier = new ResolutionVerifier();
body.accept(verifier);
verifier.assertResolved();
}
}
@reflectiveTest
class ResolveUnitTypeNamesTaskTest extends _AbstractDartTaskTest {
test_created_resolved_unit() {
Source source = newSource(
'/test.dart',
r'''
library lib;
class A {}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVED_UNIT3);
expect(outputs[RESOLVED_UNIT3], isNotNull);
expect(outputs[CREATED_RESOLVED_UNIT3], isTrue);
}
test_perform() {
Source source = newSource(
'/test.dart',
'''
class A {}
class B extends A {}
int f(String p) => p.length;
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVED_UNIT3, matcher: isResolveUnitTypeNamesTask);
// validate
CompilationUnit unit = outputs[RESOLVED_UNIT3];
{
ClassDeclaration nodeA = unit.declarations[0];
ClassDeclaration nodeB = unit.declarations[1];
DartType extendsType = nodeB.extendsClause.superclass.type;
expect(extendsType, nodeA.element.type);
}
{
FunctionDeclaration functionNode = unit.declarations[2];
DartType returnType = functionNode.returnType.type;
List<FormalParameter> parameters =
functionNode.functionExpression.parameters.parameters;
expect(returnType.displayName, 'int');
expect(parameters[0].element.type.displayName, 'String');
}
}
test_perform_errors() {
Source source = newSource(
'/test.dart',
'''
NoSuchClass f() => null;
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVE_TYPE_NAMES_ERRORS,
matcher: isResolveUnitTypeNamesTask);
// validate
_fillErrorListener(RESOLVE_TYPE_NAMES_ERRORS);
errorListener
.assertErrorsWithCodes(<ErrorCode>[StaticWarningCode.UNDEFINED_CLASS]);
}
test_perform_typedef() {
Source source = newSource(
'/test.dart',
'''
typedef int F(G g);
typedef String G(int p);
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVED_UNIT3, matcher: isResolveUnitTypeNamesTask);
// validate
CompilationUnit unit = outputs[RESOLVED_UNIT3];
FunctionTypeAlias nodeF = unit.declarations[0];
FunctionTypeAlias nodeG = unit.declarations[1];
{
FormalParameter parameter = nodeF.parameters.parameters[0];
DartType parameterType = parameter.element.type;
Element returnTypeElement = nodeF.returnType.type.element;
expect(returnTypeElement.displayName, 'int');
expect(parameterType.element, nodeG.element);
}
{
FormalParameter parameter = nodeG.parameters.parameters[0];
DartType parameterType = parameter.element.type;
expect(nodeG.returnType.type.element.displayName, 'String');
expect(parameterType.element.displayName, 'int');
}
}
test_perform_typedef_errors() {
Source source = newSource(
'/test.dart',
'''
typedef int F(NoSuchType p);
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVE_TYPE_NAMES_ERRORS,
matcher: isResolveUnitTypeNamesTask);
// validate
_fillErrorListener(RESOLVE_TYPE_NAMES_ERRORS);
errorListener
.assertErrorsWithCodes(<ErrorCode>[StaticWarningCode.UNDEFINED_CLASS]);
}
}
@reflectiveTest
class ResolveVariableReferencesTaskTest extends _AbstractDartTaskTest {
/**
* Verify that the mutated states of the given [variable] correspond to the
* [mutatedInClosure] and [mutatedInScope] matchers.
*/
void expectMutated(FunctionBody body, VariableElement variable,
bool mutatedInClosure, bool mutatedInScope) {
expect(variable.isPotentiallyMutatedInClosure, mutatedInClosure);
expect(variable.isPotentiallyMutatedInScope, mutatedInScope);
expect(body.isPotentiallyMutatedInClosure(variable), mutatedInClosure);
expect(body.isPotentiallyMutatedInScope(variable), mutatedInScope);
}
test_created_resolved_unit() {
Source source = newSource(
'/test.dart',
r'''
library lib;
class A {}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVED_UNIT4);
expect(outputs[RESOLVED_UNIT4], isNotNull);
expect(outputs[CREATED_RESOLVED_UNIT4], isTrue);
}
test_perform_buildClosureLibraryElements() {
Source source = newSource(
'/test.dart',
'''
main() {
}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVED_UNIT4,
matcher: isResolveVariableReferencesTask);
}
test_perform_local() {
Source source = newSource(
'/test.dart',
'''
main() {
var v1 = 1;
var v2 = 1;
var v3 = 1;
var v4 = 1;
v2 = 2;
v4 = 2;
localFunction() {
v3 = 3;
v4 = 3;
}
}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVED_UNIT4,
matcher: isResolveVariableReferencesTask);
// validate
CompilationUnit unit = outputs[RESOLVED_UNIT4];
FunctionDeclaration mainDeclaration = unit.declarations[0];
FunctionBody body = mainDeclaration.functionExpression.body;
FunctionElement main = mainDeclaration.element;
expectMutated(body, main.localVariables[0], false, false);
expectMutated(body, main.localVariables[1], false, true);
expectMutated(body, main.localVariables[2], true, true);
expectMutated(body, main.localVariables[3], true, true);
}
test_perform_parameter() {
Source source = newSource(
'/test.dart',
'''
main(p1, p2, p3, p4) {
p2 = 2;
p4 = 2;
localFunction() {
p3 = 3;
p4 = 3;
}
}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVED_UNIT4,
matcher: isResolveVariableReferencesTask);
// validate
CompilationUnit unit = outputs[RESOLVED_UNIT4];
FunctionDeclaration mainDeclaration = unit.declarations[0];
FunctionBody body = mainDeclaration.functionExpression.body;
FunctionElement main = mainDeclaration.element;
expectMutated(body, main.parameters[0], false, false);
expectMutated(body, main.parameters[1], false, true);
expectMutated(body, main.parameters[2], true, true);
expectMutated(body, main.parameters[3], true, true);
}
}
@reflectiveTest
class ScanDartTaskTest extends _AbstractDartTaskTest {
test_perform_errors() {
_performScanTask('import "');
expect(outputs, hasLength(3));
expect(outputs[LINE_INFO], isNotNull);
expect(outputs[SCAN_ERRORS], hasLength(1));
expect(outputs[TOKEN_STREAM], isNotNull);
}
test_perform_noErrors() {
_performScanTask('class A {}');
expect(outputs, hasLength(3));
expect(outputs[LINE_INFO], isNotNull);
expect(outputs[SCAN_ERRORS], hasLength(0));
expect(outputs[TOKEN_STREAM], isNotNull);
}
test_perform_script() {
String scriptContent = '''
void buttonPressed() {
''';
String htmlContent = '''
<!DOCTYPE html>
<html>
<head>
<title>test page</title>
<script type='application/dart'>$scriptContent</script>
</head>
<body>Test</body>
</html>
''';
Source source = newSource('/test.html', htmlContent);
DartScript script =
new DartScript(source, [new ScriptFragment(97, 5, 36, scriptContent)]);
computeResult(script, TOKEN_STREAM, matcher: isScanDartTask);
expect(outputs[LINE_INFO], isNotNull);
expect(outputs[SCAN_ERRORS], isEmpty);
Token tokenStream = outputs[TOKEN_STREAM];
expect(tokenStream, isNotNull);
expect(tokenStream.lexeme, 'void');
}
void _performScanTask(String content) {
AnalysisTarget target = newSource('/test.dart', content);
computeResult(target, TOKEN_STREAM, matcher: isScanDartTask);
}
}
@reflectiveTest
class StrongModeInferenceTest extends _AbstractDartTaskTest {
@override
void setUp() {
super.setUp();
enableStrongMode();
}
// Check that even within a static variable cycle, inferred
// types get propagated to the members of the cycle.
void test_perform_cycle() {
AnalysisTarget source = newSource(
'/test.dart',
'''
var piFirst = true;
var pi = piFirst ? 3.14 : tau / 2;
var tau = piFirst ? pi * 2 : 6.28;
''');
computeResult(new LibrarySpecificUnit(source, source), RESOLVED_UNIT10);
CompilationUnit unit = outputs[RESOLVED_UNIT10];
VariableElement piFirst =
AstFinder.getTopLevelVariable(unit, 'piFirst').name.staticElement;
VariableElement pi =
AstFinder.getTopLevelVariable(unit, 'pi').name.staticElement;
VariableElement tau =
AstFinder.getTopLevelVariable(unit, 'tau').name.staticElement;
Expression piFirstUse = (AstFinder
.getTopLevelVariable(unit, 'tau')
.initializer as ConditionalExpression)
.condition;
expect(piFirstUse.staticType, context.typeProvider.boolType);
expect(piFirst.type, context.typeProvider.boolType);
expect(pi.type.isDynamic, isTrue);
expect(tau.type.isDynamic, isTrue);
}
void test_perform_inference_cross_unit_cyclic() {
AnalysisTarget firstSource = newSource(
'/a.dart',
'''
import 'test.dart';
var x = 2;
class A { static var x = 2; }
''');
AnalysisTarget secondSource = newSource(
'/test.dart',
'''
import 'a.dart';
var y = x;
class B { static var y = A.x; }
test1() {
int t = 3;
t = x;
t = y;
t = A.x;
t = B.y;
}
''');
computeResult(
new LibrarySpecificUnit(firstSource, firstSource), RESOLVED_UNIT10);
CompilationUnit unit1 = outputs[RESOLVED_UNIT10];
computeResult(
new LibrarySpecificUnit(secondSource, secondSource), RESOLVED_UNIT10);
CompilationUnit unit2 = outputs[RESOLVED_UNIT10];
InterfaceType intType = context.typeProvider.intType;
assertVariableDeclarationTypes(
AstFinder.getTopLevelVariable(unit1, "x"), intType, intType);
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit1, "A", "x"), intType, intType);
assertVariableDeclarationTypes(
AstFinder.getTopLevelVariable(unit2, "y"), intType, intType);
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit2, "B", "y"), intType, intType);
List<Statement> statements =
AstFinder.getStatementsInTopLevelFunction(unit2, "test1");
assertAssignmentStatementTypes(statements[1], intType, intType);
assertAssignmentStatementTypes(statements[2], intType, intType);
assertAssignmentStatementTypes(statements[3], intType, intType);
assertAssignmentStatementTypes(statements[4], intType, intType);
}
// Test that local variables in method bodies are inferred appropriately
void test_perform_inference_cross_unit_instance() {
List<Source> sources = newSources({
'/a.dart': '''
import 'b.dart';
class A {
final a2 = new B().b2;
}
''',
'/b.dart': '''
class B {
final b2 = 1;
}
''',
'/main.dart': '''
import "a.dart";
test1() {
int x = 0;
x = new A().a2;
}
'''
});
List<dynamic> units =
computeLibraryResults(sources, RESOLVED_UNIT10).toList();
CompilationUnit unit0 = units[0];
CompilationUnit unit1 = units[1];
CompilationUnit unit2 = units[2];
InterfaceType intType = context.typeProvider.intType;
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit0, "A", "a2"), intType, intType);
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit1, "B", "b2"), intType, intType);
List<Statement> statements =
AstFinder.getStatementsInTopLevelFunction(unit2, "test1");
assertAssignmentStatementTypes(statements[1], intType, intType);
}
// Test inference interactions between local variables and fields
void test_perform_inference_cross_unit_instance_member() {
List<Source> sources = newSources({
'/a.dart': '''
import 'b.dart';
var bar = new B();
void foo() {
String x = bar.f.z;
}
''',
'/b.dart': '''
class C {
var z = 3;
}
class B {
var f = new C();
}
''',
'/c.dart': '''
import 'b.dart';
var bar = new B();
void foo() {
String x = bar.f.z;
}
'''
});
List<dynamic> units =
computeLibraryResults(sources, RESOLVED_UNIT10).toList();
CompilationUnit unit0 = units[0];
CompilationUnit unit2 = units[2];
InterfaceType intType = context.typeProvider.intType;
InterfaceType stringType = context.typeProvider.stringType;
assertVariableDeclarationStatementTypes(
AstFinder.getStatementsInTopLevelFunction(unit0, "foo")[0],
stringType,
intType);
assertVariableDeclarationStatementTypes(
AstFinder.getStatementsInTopLevelFunction(unit2, "foo")[0],
stringType,
intType);
}
// Test inference interactions between local variables and top level
// variables
void test_perform_inference_cross_unit_non_cyclic() {
AnalysisTarget firstSource = newSource(
'/a.dart',
'''
var x = 2;
class A { static var x = 2; }
''');
AnalysisTarget secondSource = newSource(
'/test.dart',
'''
import 'a.dart';
var y = x;
class B { static var y = A.x; }
test1() {
x = /*severe:StaticTypeError*/"hi";
y = /*severe:StaticTypeError*/"hi";
A.x = /*severe:StaticTypeError*/"hi";
B.y = /*severe:StaticTypeError*/"hi";
}
''');
computeResult(
new LibrarySpecificUnit(firstSource, firstSource), RESOLVED_UNIT10);
CompilationUnit unit1 = outputs[RESOLVED_UNIT10];
computeResult(
new LibrarySpecificUnit(secondSource, secondSource), RESOLVED_UNIT10);
CompilationUnit unit2 = outputs[RESOLVED_UNIT10];
InterfaceType intType = context.typeProvider.intType;
InterfaceType stringType = context.typeProvider.stringType;
assertVariableDeclarationTypes(
AstFinder.getTopLevelVariable(unit1, "x"), intType, intType);
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit1, "A", "x"), intType, intType);
assertVariableDeclarationTypes(
AstFinder.getTopLevelVariable(unit2, "y"), intType, intType);
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit2, "B", "y"), intType, intType);
List<Statement> statements =
AstFinder.getStatementsInTopLevelFunction(unit2, "test1");
assertAssignmentStatementTypes(statements[0], intType, stringType);
assertAssignmentStatementTypes(statements[1], intType, stringType);
}
// Test that inference does not propagate from null
void test_perform_inference_cross_unit_static_instance() {
List<Source> sources = newSources({
'/a.dart': '''
import 'b.dart';
class A {
static final a1 = B.b1;
final a2 = new B().b2;
}
''',
'/b.dart': '''
class B {
static final b1 = 1;
final b2 = 1;
}
''',
'/main.dart': '''
import "a.dart";
test1() {
int x = 0;
// inference in A now works.
x = A.a1;
x = new A().a2;
}
'''
});
List<dynamic> units =
computeLibraryResults(sources, RESOLVED_UNIT10).toList();
CompilationUnit unit0 = units[0];
CompilationUnit unit1 = units[1];
CompilationUnit unit2 = units[2];
InterfaceType intType = context.typeProvider.intType;
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit0, "A", "a1"), intType, intType);
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit0, "A", "a2"), intType, intType);
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit1, "B", "b1"), intType, intType);
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit1, "B", "b2"), intType, intType);
List<Statement> statements =
AstFinder.getStatementsInTopLevelFunction(unit2, "test1");
assertAssignmentStatementTypes(statements[1], intType, intType);
assertAssignmentStatementTypes(statements[2], intType, intType);
}
// Test inference across units (non-cyclic)
void test_perform_inference_local_variables() {
AnalysisTarget source = newSource(
'/test.dart',
'''
test() {
int x = 3;
x = "hi";
var y = 3;
y = "hi";
}
''');
computeResult(new LibrarySpecificUnit(source, source), RESOLVED_UNIT10);
CompilationUnit unit = outputs[RESOLVED_UNIT10];
InterfaceType intType = context.typeProvider.intType;
InterfaceType stringType = context.typeProvider.stringType;
List<Statement> statements =
AstFinder.getStatementsInTopLevelFunction(unit, "test");
assertVariableDeclarationStatementTypes(statements[0], intType, intType);
assertAssignmentStatementTypes(statements[1], intType, stringType);
assertVariableDeclarationStatementTypes(statements[2], intType, intType);
assertAssignmentStatementTypes(statements[3], intType, stringType);
}
// Test inference across units (cyclic)
void test_perform_inference_local_variables_fields() {
AnalysisTarget source = newSource(
'/test.dart',
'''
class A {
int x = 0;
test1() {
var a = x;
a = "hi";
a = 3;
var b = y;
b = "hi";
b = 4;
var c = z;
c = "hi";
c = 4;
}
int y; // field def after use
final z = 42; // should infer `int`
}
''');
computeResult(new LibrarySpecificUnit(source, source), RESOLVED_UNIT10);
CompilationUnit unit = outputs[RESOLVED_UNIT10];
InterfaceType intType = context.typeProvider.intType;
InterfaceType stringType = context.typeProvider.stringType;
List<Statement> statements =
AstFinder.getStatementsInMethod(unit, "A", "test1");
assertVariableDeclarationStatementTypes(statements[0], intType, intType);
assertAssignmentStatementTypes(statements[1], intType, stringType);
assertAssignmentStatementTypes(statements[2], intType, intType);
assertVariableDeclarationStatementTypes(statements[3], intType, intType);
assertAssignmentStatementTypes(statements[4], intType, stringType);
assertAssignmentStatementTypes(statements[5], intType, intType);
assertVariableDeclarationStatementTypes(statements[6], intType, intType);
assertAssignmentStatementTypes(statements[7], intType, stringType);
assertAssignmentStatementTypes(statements[8], intType, intType);
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit, "A", "x"), intType, intType);
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit, "A", "z"), intType, intType);
}
// Test inference of instance fields across units
void test_perform_inference_local_variables_topLevel() {
AnalysisTarget source = newSource(
'/test.dart',
'''
int x = 0;
test1() {
var a = x;
a = /*severe:StaticTypeError*/"hi";
a = 3;
var b = y;
b = /*severe:StaticTypeError*/"hi";
b = 4;
var c = z;
c = /*severe:StaticTypeError*/"hi";
c = 4;
}
int y = 0; // field def after use
final z = 42; // should infer `int`
''');
computeResult(new LibrarySpecificUnit(source, source), RESOLVED_UNIT10);
CompilationUnit unit = outputs[RESOLVED_UNIT10];
InterfaceType intType = context.typeProvider.intType;
InterfaceType stringType = context.typeProvider.stringType;
List<Statement> statements =
AstFinder.getStatementsInTopLevelFunction(unit, "test1");
assertVariableDeclarationStatementTypes(statements[0], intType, intType);
assertAssignmentStatementTypes(statements[1], intType, stringType);
assertAssignmentStatementTypes(statements[2], intType, intType);
assertVariableDeclarationStatementTypes(statements[3], intType, intType);
assertAssignmentStatementTypes(statements[4], intType, stringType);
assertAssignmentStatementTypes(statements[5], intType, intType);
assertVariableDeclarationStatementTypes(statements[6], intType, intType);
assertAssignmentStatementTypes(statements[7], intType, stringType);
assertAssignmentStatementTypes(statements[8], intType, intType);
assertVariableDeclarationTypes(
AstFinder.getTopLevelVariable(unit, "x"), intType, intType);
assertVariableDeclarationTypes(
AstFinder.getTopLevelVariable(unit, "y"), intType, intType);
assertVariableDeclarationTypes(
AstFinder.getTopLevelVariable(unit, "z"), intType, intType);
}
// Test inference between static and instance fields
void test_perform_inference_null() {
AnalysisTarget source = newSource(
'/test.dart',
'''
var x = null;
var y = 3;
class A {
static var x = null;
static var y = 3;
var x2 = null;
var y2 = 3;
}
test() {
x = "hi";
y = /*severe:StaticTypeError*/"hi";
A.x = "hi";
A.y = /*severe:StaticTypeError*/"hi";
new A().x2 = "hi";
new A().y2 = /*severe:StaticTypeError*/"hi";
}
''');
computeResult(new LibrarySpecificUnit(source, source), RESOLVED_UNIT10);
CompilationUnit unit = outputs[RESOLVED_UNIT10];
InterfaceType intType = context.typeProvider.intType;
InterfaceType stringType = context.typeProvider.stringType;
DartType bottomType = context.typeProvider.bottomType;
DartType dynamicType = context.typeProvider.dynamicType;
assertVariableDeclarationTypes(
AstFinder.getTopLevelVariable(unit, "x"), dynamicType, bottomType);
assertVariableDeclarationTypes(
AstFinder.getTopLevelVariable(unit, "y"), intType, intType);
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit, "A", "x"), dynamicType, bottomType);
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit, "A", "y"), intType, intType);
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit, "A", "x2"), dynamicType, bottomType);
assertVariableDeclarationTypes(
AstFinder.getFieldInClass(unit, "A", "y2"), intType, intType);
List<Statement> statements =
AstFinder.getStatementsInTopLevelFunction(unit, "test");
assertAssignmentStatementTypes(statements[0], dynamicType, stringType);
assertAssignmentStatementTypes(statements[1], intType, stringType);
assertAssignmentStatementTypes(statements[2], dynamicType, stringType);
assertAssignmentStatementTypes(statements[3], intType, stringType);
assertAssignmentStatementTypes(statements[4], dynamicType, stringType);
assertAssignmentStatementTypes(statements[5], intType, stringType);
}
// Test inference between fields and method bodies
void test_perform_local_explicit_disabled() {
AnalysisTarget source = newSource(
'/test.dart',
'''
test() {
int x = 3;
x = "hi";
}
''');
computeResult(new LibrarySpecificUnit(source, source), RESOLVED_UNIT10);
CompilationUnit unit = outputs[RESOLVED_UNIT10];
InterfaceType intType = context.typeProvider.intType;
InterfaceType stringType = context.typeProvider.stringType;
List<Statement> statements =
AstFinder.getStatementsInTopLevelFunction(unit, "test");
VariableDeclaration decl =
(statements[0] as VariableDeclarationStatement).variables.variables[0];
expect(decl.element.type, intType);
expect(decl.initializer.staticType, intType);
ExpressionStatement statement = statements[1];
AssignmentExpression assgn = statement.expression;
expect(assgn.leftHandSide.staticType, intType);
expect(assgn.rightHandSide.staticType, stringType);
}
}
@reflectiveTest
class StrongModeVerifyUnitTaskTest extends _AbstractDartTaskTest {
@override
void setUp() {
super.setUp();
enableStrongMode();
}
test_created_resolved_unit() {
Source source = newSource(
'/test.dart',
r'''
library lib;
class A {}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, RESOLVED_UNIT);
expect(outputs[RESOLVED_UNIT], isNotNull);
expect(outputs[CREATED_RESOLVED_UNIT], isTrue);
}
void test_perform_recordDynamicInvoke() {
enableStrongMode();
AnalysisTarget source = newSource(
'/test.dart',
'''
void main() {
dynamic a = [];
a[0];
}
''');
computeResult(new LibrarySpecificUnit(source, source), STRONG_MODE_ERRORS);
CompilationUnit unit = outputs[RESOLVED_UNIT];
// validate
_fillErrorListener(STRONG_MODE_ERRORS);
expect(errorListener.errors, isEmpty);
List<Statement> statements =
AstFinder.getStatementsInTopLevelFunction(unit, "main");
ExpressionStatement statement = statements[1];
IndexExpression idx = statement.expression;
expect(DynamicInvoke.get(idx.target), isNotNull);
expect(DynamicInvoke.get(idx.target), isNotNull);
expect(DynamicInvoke.get(idx.target), isTrue);
}
void test_perform_verifyError() {
enableStrongMode();
AnalysisTarget source = newSource(
'/test.dart',
'''
int topLevel = 3;
class C {
String field = topLevel;
}
''');
computeResult(new LibrarySpecificUnit(source, source), STRONG_MODE_ERRORS);
// validate
_fillErrorListener(STRONG_MODE_ERRORS);
var errors = errorListener.errors;
expect(errors.length, 1);
expect(errors[0].errorCode.name, "STRONG_MODE_STATIC_TYPE_ERROR");
}
}
@reflectiveTest
class VerifyUnitTaskTest extends _AbstractDartTaskTest {
test_perform_constantError() {
Source source = newSource(
'/test.dart',
'''
main(int p) {
const v = p;
}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, VERIFY_ERRORS, matcher: isVerifyUnitTask);
// validate
_fillErrorListener(VERIFY_ERRORS);
errorListener.assertErrorsWithCodes(<ErrorCode>[
CompileTimeErrorCode.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
]);
}
test_perform_ConstantValidator_duplicateFields() {
Source source = newSource(
'/test.dart',
'''
class Test {
final int x = 1;
final int x = 2;
const Test();
}
main() {
const Test();
}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, VERIFY_ERRORS, matcher: isVerifyUnitTask);
// validate
_fillErrorListener(VERIFY_ERRORS);
errorListener.assertNoErrors();
}
test_perform_directiveError() {
Source source = newSource(
'/test.dart',
'''
import 'no-such-file.dart';
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, VERIFY_ERRORS, matcher: isVerifyUnitTask);
// validate
_fillErrorListener(VERIFY_ERRORS);
errorListener.assertErrorsWithCodes(
<ErrorCode>[CompileTimeErrorCode.URI_DOES_NOT_EXIST]);
}
void test_perform_reresolution() {
enableStrongMode();
AnalysisTarget source = newSource(
'/test.dart',
'''
const topLevel = 3;
class C {
String field = topLevel;
}
''');
computeResult(new LibrarySpecificUnit(source, source), VERIFY_ERRORS);
// validate
_fillErrorListener(VERIFY_ERRORS);
var errors = errorListener.errors;
expect(errors.length, 1);
expect(errors[0].errorCode, StaticTypeWarningCode.INVALID_ASSIGNMENT);
}
test_perform_verifyError() {
Source source = newSource(
'/test.dart',
'''
main() {
if (42) {
print('Not bool!');
}
}
''');
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
computeResult(target, VERIFY_ERRORS, matcher: isVerifyUnitTask);
// validate
_fillErrorListener(VERIFY_ERRORS);
errorListener.assertErrorsWithCodes(
<ErrorCode>[StaticTypeWarningCode.NON_BOOL_CONDITION]);
}
}
class _AbstractDartTaskTest extends AbstractContextTest {
Source emptySource;
GatheringErrorListener errorListener = new GatheringErrorListener();
void assertAssignmentStatementTypes(
Statement stmt, DartType leftType, DartType rightType) {
AssignmentExpression assgn = (stmt as ExpressionStatement).expression;
expect(assgn.leftHandSide.staticType, leftType);
expect(assgn.rightHandSide.staticType, rightType);
}
void assertIsInvalid(AnalysisTarget target, ResultDescriptor descriptor) {
CacheEntry entry = context.getCacheEntry(target);
expect(entry.isInvalid(descriptor), isTrue);
}
void assertIsValid(AnalysisTarget target, ResultDescriptor descriptor) {
CacheEntry entry = context.getCacheEntry(target);
expect(entry.isValid(descriptor), isTrue);
}
void assertSameResults(List<ResultDescriptor> descriptors) {
descriptors.forEach((descriptor) {
var oldResult = oldOutputs[descriptor];
var newResult = outputs[descriptor];
expect(newResult, same(oldResult), reason: descriptor.name);
});
}
void assertVariableDeclarationStatementTypes(
Statement stmt, DartType varType, DartType initializerType) {
VariableDeclaration decl =
(stmt as VariableDeclarationStatement).variables.variables[0];
assertVariableDeclarationTypes(decl, varType, initializerType);
}
void assertVariableDeclarationTypes(
VariableDeclaration decl, DartType varType, DartType initializerType) {
expect(decl.element.type, varType);
expect(decl.initializer.staticType, initializerType);
}
List<dynamic> computeLibraryResults(
List<Source> sources, ResultDescriptor result,
{isInstanceOf matcher: null}) {
dynamic compute(Source source) {
computeResult(new LibrarySpecificUnit(source, source), result,
matcher: matcher);
return outputs[result];
}
return sources.map(compute).toList();
}
List<Map<ResultDescriptor, dynamic>> computeLibraryResultsMap(
List<Source> sources, ResultDescriptor result,
{isInstanceOf matcher: null}) {
Map<ResultDescriptor, dynamic> compute(Source source) {
computeResult(new LibrarySpecificUnit(source, source), result,
matcher: matcher);
return outputs;
}
return sources.map(compute).toList();
}
/**
* Create a script object with a single fragment containing the given
* [scriptContent].
*/
DartScript createScript(String scriptContent) {
String htmlContent = '''
<!DOCTYPE html>
<html>
<head>
<title>test page</title>
<script type='application/dart'>$scriptContent</script>
</head>
<body>Test</body>
</html>
''';
Source source = newSource('/test.html', htmlContent);
return new DartScript(
source, [new ScriptFragment(97, 5, 36, scriptContent)]);
}
/**
* Enable strong mode in the current analysis context.
*/
void enableStrongMode() {
AnalysisOptionsImpl options = context.analysisOptions;
options.strongMode = true;
context.analysisOptions = options;
}
void setUp() {
super.setUp();
emptySource = newSource('/test.dart');
}
/**
* Fill [errorListener] with [result] errors in the current [task].
*/
void _fillErrorListener(ResultDescriptor<List<AnalysisError>> result) {
List<AnalysisError> errors = task.outputs[result];
expect(errors, isNotNull, reason: result.name);
errorListener = new GatheringErrorListener();
errorListener.addAll(errors);
}
}