Brian Wilkerson
4bd6b4b048
R=scheglov@google.com Review URL: https://codereview.chromium.org//1313113002 .
654 lines
23 KiB
Dart
654 lines
23 KiB
Dart
// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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library test.computer.element;
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import 'dart:mirrors';
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import 'package:analysis_server/src/constants.dart';
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import 'package:analysis_server/src/protocol_server.dart';
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import 'package:analysis_server/src/services/search/search_engine.dart';
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import 'package:analyzer/src/generated/ast.dart' as engine;
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import 'package:analyzer/src/generated/element.dart' as engine;
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import 'package:analyzer/src/generated/error.dart' as engine;
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import 'package:analyzer/src/generated/source.dart' as engine;
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import 'package:test_reflective_loader/test_reflective_loader.dart';
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import 'package:typed_mock/typed_mock.dart';
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import 'package:unittest/unittest.dart';
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import 'abstract_context.dart';
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import 'mocks.dart';
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import 'utils.dart';
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main() {
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initializeTestEnvironment();
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defineReflectiveTests(AnalysisErrorTest);
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defineReflectiveTests(ElementTest);
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defineReflectiveTests(ElementKindTest);
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defineReflectiveTests(EnumTest);
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}
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class AnalysisErrorMock extends TypedMock implements engine.AnalysisError {
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noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
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}
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@reflectiveTest
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class AnalysisErrorTest {
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engine.Source source = new MockSource();
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engine.LineInfo lineInfo;
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engine.AnalysisError engineError = new AnalysisErrorMock();
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void setUp() {
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// prepare Source
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when(source.fullName).thenReturn('foo.dart');
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// prepare LineInfo
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lineInfo = new engine.LineInfo([0, 5, 9, 20]);
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// prepare AnalysisError
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when(engineError.source).thenReturn(source);
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when(engineError.errorCode)
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.thenReturn(engine.CompileTimeErrorCode.AMBIGUOUS_EXPORT);
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when(engineError.message).thenReturn('my message');
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when(engineError.offset).thenReturn(10);
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when(engineError.length).thenReturn(20);
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}
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void tearDown() {
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source = null;
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engineError = null;
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}
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void test_fromEngine_hasCorrection() {
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when(engineError.correction).thenReturn('my correction');
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AnalysisError error = newAnalysisError_fromEngine(lineInfo, engineError);
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expect(error.toJson(), {
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SEVERITY: 'ERROR',
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TYPE: 'COMPILE_TIME_ERROR',
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LOCATION: {
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FILE: 'foo.dart',
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OFFSET: 10,
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LENGTH: 20,
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START_LINE: 3,
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START_COLUMN: 2
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},
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MESSAGE: 'my message',
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CORRECTION: 'my correction'
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});
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}
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void test_fromEngine_noCorrection() {
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when(engineError.correction).thenReturn(null);
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AnalysisError error = newAnalysisError_fromEngine(lineInfo, engineError);
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expect(error.toJson(), {
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SEVERITY: 'ERROR',
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TYPE: 'COMPILE_TIME_ERROR',
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LOCATION: {
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FILE: 'foo.dart',
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OFFSET: 10,
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LENGTH: 20,
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START_LINE: 3,
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START_COLUMN: 2
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},
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MESSAGE: 'my message'
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});
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}
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void test_fromEngine_noLineInfo() {
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when(engineError.correction).thenReturn(null);
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AnalysisError error = newAnalysisError_fromEngine(null, engineError);
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expect(error.toJson(), {
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SEVERITY: 'ERROR',
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TYPE: 'COMPILE_TIME_ERROR',
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LOCATION: {
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FILE: 'foo.dart',
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OFFSET: 10,
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LENGTH: 20,
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START_LINE: -1,
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START_COLUMN: -1
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},
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MESSAGE: 'my message'
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});
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}
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}
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@reflectiveTest
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class ElementKindTest {
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void test_fromEngine() {
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expect(
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newElementKind_fromEngine(engine.ElementKind.CLASS), ElementKind.CLASS);
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expect(newElementKind_fromEngine(engine.ElementKind.COMPILATION_UNIT),
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ElementKind.COMPILATION_UNIT);
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expect(newElementKind_fromEngine(engine.ElementKind.CONSTRUCTOR),
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ElementKind.CONSTRUCTOR);
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expect(
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newElementKind_fromEngine(engine.ElementKind.FIELD), ElementKind.FIELD);
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expect(newElementKind_fromEngine(engine.ElementKind.FUNCTION),
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ElementKind.FUNCTION);
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expect(newElementKind_fromEngine(engine.ElementKind.FUNCTION_TYPE_ALIAS),
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ElementKind.FUNCTION_TYPE_ALIAS);
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expect(newElementKind_fromEngine(engine.ElementKind.GETTER),
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ElementKind.GETTER);
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expect(
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newElementKind_fromEngine(engine.ElementKind.LABEL), ElementKind.LABEL);
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expect(newElementKind_fromEngine(engine.ElementKind.LIBRARY),
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ElementKind.LIBRARY);
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expect(newElementKind_fromEngine(engine.ElementKind.LOCAL_VARIABLE),
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ElementKind.LOCAL_VARIABLE);
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expect(newElementKind_fromEngine(engine.ElementKind.METHOD),
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ElementKind.METHOD);
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expect(newElementKind_fromEngine(engine.ElementKind.PARAMETER),
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ElementKind.PARAMETER);
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expect(newElementKind_fromEngine(engine.ElementKind.SETTER),
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ElementKind.SETTER);
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expect(newElementKind_fromEngine(engine.ElementKind.TOP_LEVEL_VARIABLE),
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ElementKind.TOP_LEVEL_VARIABLE);
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expect(newElementKind_fromEngine(engine.ElementKind.TYPE_PARAMETER),
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ElementKind.TYPE_PARAMETER);
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}
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void test_string_constructor() {
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expect(new ElementKind(ElementKind.CLASS.name), ElementKind.CLASS);
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expect(new ElementKind(ElementKind.CLASS_TYPE_ALIAS.name),
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ElementKind.CLASS_TYPE_ALIAS);
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expect(new ElementKind(ElementKind.COMPILATION_UNIT.name),
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ElementKind.COMPILATION_UNIT);
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expect(
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new ElementKind(ElementKind.CONSTRUCTOR.name), ElementKind.CONSTRUCTOR);
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expect(new ElementKind(ElementKind.FIELD.name), ElementKind.FIELD);
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expect(new ElementKind(ElementKind.FUNCTION.name), ElementKind.FUNCTION);
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expect(new ElementKind(ElementKind.FUNCTION_TYPE_ALIAS.name),
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ElementKind.FUNCTION_TYPE_ALIAS);
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expect(new ElementKind(ElementKind.GETTER.name), ElementKind.GETTER);
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expect(new ElementKind(ElementKind.LIBRARY.name), ElementKind.LIBRARY);
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expect(new ElementKind(ElementKind.LOCAL_VARIABLE.name),
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ElementKind.LOCAL_VARIABLE);
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expect(new ElementKind(ElementKind.METHOD.name), ElementKind.METHOD);
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expect(new ElementKind(ElementKind.PARAMETER.name), ElementKind.PARAMETER);
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expect(new ElementKind(ElementKind.SETTER.name), ElementKind.SETTER);
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expect(new ElementKind(ElementKind.TOP_LEVEL_VARIABLE.name),
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ElementKind.TOP_LEVEL_VARIABLE);
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expect(new ElementKind(ElementKind.TYPE_PARAMETER.name),
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ElementKind.TYPE_PARAMETER);
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expect(new ElementKind(ElementKind.UNIT_TEST_TEST.name),
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ElementKind.UNIT_TEST_TEST);
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expect(new ElementKind(ElementKind.UNIT_TEST_GROUP.name),
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ElementKind.UNIT_TEST_GROUP);
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expect(new ElementKind(ElementKind.UNKNOWN.name), ElementKind.UNKNOWN);
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expect(() {
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new ElementKind('no-such-kind');
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}, throws);
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}
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void test_toString() {
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expect(ElementKind.CLASS.toString(), 'ElementKind.CLASS');
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expect(ElementKind.COMPILATION_UNIT.toString(),
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'ElementKind.COMPILATION_UNIT');
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}
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}
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@reflectiveTest
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class ElementTest extends AbstractContextTest {
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engine.Element findElementInUnit(engine.CompilationUnit unit, String name,
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[engine.ElementKind kind]) {
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return findChildElement(unit.element, name, kind);
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}
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void test_fromElement_CLASS() {
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engine.Source source = addSource(
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'/test.dart',
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'''
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@deprecated
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abstract class _A {}
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class B<K, V> {}''');
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engine.CompilationUnit unit = resolveLibraryUnit(source);
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{
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engine.ClassElement engineElement = findElementInUnit(unit, '_A');
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// create notification Element
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Element element = newElement_fromEngine(engineElement);
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expect(element.kind, ElementKind.CLASS);
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expect(element.name, '_A');
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expect(element.typeParameters, isNull);
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{
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Location location = element.location;
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expect(location.file, '/test.dart');
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expect(location.offset, 27);
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expect(location.length, '_A'.length);
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expect(location.startLine, 2);
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expect(location.startColumn, 16);
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}
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expect(element.parameters, isNull);
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expect(
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element.flags,
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Element.FLAG_ABSTRACT |
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Element.FLAG_DEPRECATED |
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Element.FLAG_PRIVATE);
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}
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{
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engine.ClassElement engineElement = findElementInUnit(unit, 'B');
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// create notification Element
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Element element = newElement_fromEngine(engineElement);
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expect(element.kind, ElementKind.CLASS);
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expect(element.name, 'B');
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expect(element.typeParameters, '<K, V>');
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expect(element.flags, 0);
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}
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}
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void test_fromElement_CONSTRUCTOR() {
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engine.Source source = addSource(
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'/test.dart',
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'''
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class A {
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const A.myConstructor(int a, [String b]);
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}''');
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engine.CompilationUnit unit = resolveLibraryUnit(source);
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engine.ConstructorElement engineElement =
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findElementInUnit(unit, 'myConstructor');
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// create notification Element
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Element element = newElement_fromEngine(engineElement);
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expect(element.kind, ElementKind.CONSTRUCTOR);
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expect(element.name, 'myConstructor');
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expect(element.typeParameters, isNull);
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{
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Location location = element.location;
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expect(location.file, '/test.dart');
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expect(location.offset, 20);
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expect(location.length, 'myConstructor'.length);
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expect(location.startLine, 2);
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expect(location.startColumn, 11);
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}
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expect(element.parameters, '(int a, [String b])');
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expect(element.returnType, 'A');
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expect(element.flags, Element.FLAG_CONST);
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}
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void test_fromElement_dynamic() {
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var engineElement = engine.DynamicElementImpl.instance;
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// create notification Element
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Element element = newElement_fromEngine(engineElement);
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expect(element.kind, ElementKind.UNKNOWN);
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expect(element.name, 'dynamic');
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expect(element.location, isNull);
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expect(element.parameters, isNull);
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expect(element.returnType, isNull);
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expect(element.flags, 0);
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}
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void test_fromElement_ENUM() {
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engine.Source source = addSource(
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'/test.dart',
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'''
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@deprecated
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enum _E1 { one, two }
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enum E2 { three, four }''');
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engine.CompilationUnit unit = resolveLibraryUnit(source);
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{
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engine.ClassElement engineElement = findElementInUnit(unit, '_E1');
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expect(engineElement.isDeprecated, isTrue);
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// create notification Element
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Element element = newElement_fromEngine(engineElement);
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expect(element.kind, ElementKind.ENUM);
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expect(element.name, '_E1');
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expect(element.typeParameters, isNull);
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{
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Location location = element.location;
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expect(location.file, '/test.dart');
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expect(location.offset, 17);
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expect(location.length, '_E1'.length);
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expect(location.startLine, 2);
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expect(location.startColumn, 6);
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}
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expect(element.parameters, isNull);
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expect(
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element.flags,
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(engineElement.isDeprecated ? Element.FLAG_DEPRECATED : 0) |
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Element.FLAG_PRIVATE);
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}
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{
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engine.ClassElement engineElement = findElementInUnit(unit, 'E2');
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// create notification Element
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Element element = newElement_fromEngine(engineElement);
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expect(element.kind, ElementKind.ENUM);
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expect(element.name, 'E2');
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expect(element.typeParameters, isNull);
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expect(element.flags, 0);
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}
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}
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void test_fromElement_ENUM_CONSTANT() {
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engine.Source source = addSource(
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'/test.dart',
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'''
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@deprecated
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enum _E1 { one, two }
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enum E2 { three, four }''');
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engine.CompilationUnit unit = resolveLibraryUnit(source);
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{
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engine.FieldElement engineElement = findElementInUnit(unit, 'one');
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// create notification Element
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Element element = newElement_fromEngine(engineElement);
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expect(element.kind, ElementKind.ENUM_CONSTANT);
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expect(element.name, 'one');
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{
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Location location = element.location;
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expect(location.file, '/test.dart');
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expect(location.offset, 23);
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expect(location.length, 'one'.length);
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expect(location.startLine, 2);
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expect(location.startColumn, 12);
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}
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expect(element.parameters, isNull);
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expect(element.returnType, '_E1');
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// TODO(danrubel) determine why enum constant is not marked as deprecated
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//engine.ClassElement classElement = engineElement.enclosingElement;
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//expect(classElement.isDeprecated, isTrue);
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expect(
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element.flags,
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// Element.FLAG_DEPRECATED |
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Element.FLAG_CONST | Element.FLAG_STATIC);
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}
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{
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engine.FieldElement engineElement = findElementInUnit(unit, 'three');
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// create notification Element
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Element element = newElement_fromEngine(engineElement);
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expect(element.kind, ElementKind.ENUM_CONSTANT);
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expect(element.name, 'three');
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{
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Location location = element.location;
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expect(location.file, '/test.dart');
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expect(location.offset, 44);
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expect(location.length, 'three'.length);
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expect(location.startLine, 3);
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expect(location.startColumn, 11);
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}
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expect(element.parameters, isNull);
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expect(element.returnType, 'E2');
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expect(element.flags, Element.FLAG_CONST | Element.FLAG_STATIC);
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}
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{
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engine.FieldElement engineElement = findElementInUnit(unit, 'index');
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// create notification Element
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Element element = newElement_fromEngine(engineElement);
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expect(element.kind, ElementKind.FIELD);
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expect(element.name, 'index');
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{
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Location location = element.location;
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expect(location.file, '/test.dart');
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expect(location.offset, -1);
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expect(location.length, 'index'.length);
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expect(location.startLine, 1);
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expect(location.startColumn, 0);
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}
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expect(element.parameters, isNull);
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expect(element.returnType, 'int');
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expect(element.flags, Element.FLAG_FINAL);
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}
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{
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engine.FieldElement engineElement = findElementInUnit(unit, 'values');
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// create notification Element
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Element element = newElement_fromEngine(engineElement);
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expect(element.kind, ElementKind.FIELD);
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expect(element.name, 'values');
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{
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Location location = element.location;
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expect(location.file, '/test.dart');
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expect(location.offset, -1);
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expect(location.length, 'values'.length);
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expect(location.startLine, 1);
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expect(location.startColumn, 0);
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}
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expect(element.parameters, isNull);
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expect(element.returnType, 'List<E2>');
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expect(element.flags, Element.FLAG_CONST | Element.FLAG_STATIC);
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}
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}
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void test_fromElement_FIELD() {
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engine.Source source = addSource(
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'/test.dart',
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'''
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class A {
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static const myField = 42;
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}''');
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engine.CompilationUnit unit = resolveLibraryUnit(source);
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engine.FieldElement engineElement = findElementInUnit(unit, 'myField');
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// create notification Element
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Element element = newElement_fromEngine(engineElement);
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expect(element.kind, ElementKind.FIELD);
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expect(element.name, 'myField');
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{
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Location location = element.location;
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expect(location.file, '/test.dart');
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expect(location.offset, 25);
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expect(location.length, 'myField'.length);
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expect(location.startLine, 2);
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expect(location.startColumn, 16);
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}
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expect(element.parameters, isNull);
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expect(element.returnType, 'dynamic');
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expect(element.flags, Element.FLAG_CONST | Element.FLAG_STATIC);
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}
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void test_fromElement_FUNCTION_TYPE_ALIAS() {
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engine.Source source = addSource(
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'/test.dart',
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'''
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typedef int F<T>(String x);
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''');
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engine.CompilationUnit unit = resolveLibraryUnit(source);
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engine.FunctionTypeAliasElement engineElement =
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findElementInUnit(unit, 'F');
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// create notification Element
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Element element = newElement_fromEngine(engineElement);
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expect(element.kind, ElementKind.FUNCTION_TYPE_ALIAS);
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expect(element.name, 'F');
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expect(element.typeParameters, '<T>');
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{
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Location location = element.location;
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expect(location.file, '/test.dart');
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expect(location.offset, 12);
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expect(location.length, 'F'.length);
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expect(location.startLine, 1);
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expect(location.startColumn, 13);
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}
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expect(element.parameters, '(String x)');
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expect(element.returnType, 'int');
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expect(element.flags, 0);
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}
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void test_fromElement_GETTER() {
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engine.Source source = addSource(
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'/test.dart',
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'''
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class A {
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String get myGetter => 42;
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}''');
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engine.CompilationUnit unit = resolveLibraryUnit(source);
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engine.PropertyAccessorElement engineElement =
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findElementInUnit(unit, 'myGetter', engine.ElementKind.GETTER);
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// create notification Element
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Element element = newElement_fromEngine(engineElement);
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expect(element.kind, ElementKind.GETTER);
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expect(element.name, 'myGetter');
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{
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Location location = element.location;
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expect(location.file, '/test.dart');
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expect(location.offset, 23);
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expect(location.length, 'myGetter'.length);
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expect(location.startLine, 2);
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expect(location.startColumn, 14);
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}
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expect(element.parameters, isNull);
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expect(element.returnType, 'String');
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expect(element.flags, 0);
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}
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void test_fromElement_LABEL() {
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engine.Source source = addSource(
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'/test.dart',
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'''
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main() {
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myLabel:
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while (true) {
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break myLabel;
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}
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}''');
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engine.CompilationUnit unit = resolveLibraryUnit(source);
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engine.LabelElement engineElement = findElementInUnit(unit, 'myLabel');
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// create notification Element
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Element element = newElement_fromEngine(engineElement);
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|
expect(element.kind, ElementKind.LABEL);
|
|
expect(element.name, 'myLabel');
|
|
{
|
|
Location location = element.location;
|
|
expect(location.file, '/test.dart');
|
|
expect(location.offset, 9);
|
|
expect(location.length, 'myLabel'.length);
|
|
expect(location.startLine, 2);
|
|
expect(location.startColumn, 1);
|
|
}
|
|
expect(element.parameters, isNull);
|
|
expect(element.returnType, isNull);
|
|
expect(element.flags, 0);
|
|
}
|
|
|
|
void test_fromElement_METHOD() {
|
|
engine.Source source = addSource(
|
|
'/test.dart',
|
|
'''
|
|
class A {
|
|
static List<String> myMethod(int a, {String b, int c}) {
|
|
return null;
|
|
}
|
|
}''');
|
|
engine.CompilationUnit unit = resolveLibraryUnit(source);
|
|
engine.MethodElement engineElement = findElementInUnit(unit, 'myMethod');
|
|
// create notification Element
|
|
Element element = newElement_fromEngine(engineElement);
|
|
expect(element.kind, ElementKind.METHOD);
|
|
expect(element.name, 'myMethod');
|
|
{
|
|
Location location = element.location;
|
|
expect(location.file, '/test.dart');
|
|
expect(location.offset, 32);
|
|
expect(location.length, 'myGetter'.length);
|
|
expect(location.startLine, 2);
|
|
expect(location.startColumn, 23);
|
|
}
|
|
expect(element.parameters, '(int a, {String b, int c})');
|
|
expect(element.returnType, 'List<String>');
|
|
expect(element.flags, Element.FLAG_STATIC);
|
|
}
|
|
|
|
void test_fromElement_SETTER() {
|
|
engine.Source source = addSource(
|
|
'/test.dart',
|
|
'''
|
|
class A {
|
|
set mySetter(String x) {}
|
|
}''');
|
|
engine.CompilationUnit unit = resolveLibraryUnit(source);
|
|
engine.FieldElement engineFieldElement =
|
|
findElementInUnit(unit, 'mySetter', engine.ElementKind.FIELD);
|
|
engine.PropertyAccessorElement engineElement = engineFieldElement.setter;
|
|
// create notification Element
|
|
Element element = newElement_fromEngine(engineElement);
|
|
expect(element.kind, ElementKind.SETTER);
|
|
expect(element.name, 'mySetter');
|
|
{
|
|
Location location = element.location;
|
|
expect(location.file, '/test.dart');
|
|
expect(location.offset, 16);
|
|
expect(location.length, 'mySetter'.length);
|
|
expect(location.startLine, 2);
|
|
expect(location.startColumn, 7);
|
|
}
|
|
expect(element.parameters, '(String x)');
|
|
expect(element.returnType, isNull);
|
|
expect(element.flags, 0);
|
|
}
|
|
}
|
|
|
|
@reflectiveTest
|
|
class EnumTest {
|
|
void test_AnalysisErrorSeverity() {
|
|
new EnumTester<engine.ErrorSeverity, AnalysisErrorSeverity>().run(
|
|
(engine.ErrorSeverity engineErrorSeverity) =>
|
|
new AnalysisErrorSeverity(engineErrorSeverity.name),
|
|
exceptions: {engine.ErrorSeverity.NONE: null});
|
|
}
|
|
|
|
void test_AnalysisErrorType() {
|
|
new EnumTester<engine.ErrorType, AnalysisErrorType>().run(
|
|
(engine.ErrorType engineErrorType) =>
|
|
new AnalysisErrorType(engineErrorType.name));
|
|
}
|
|
|
|
void test_ElementKind() {
|
|
new EnumTester<engine.ElementKind, ElementKind>()
|
|
.run(newElementKind_fromEngine, exceptions: {
|
|
// TODO(paulberry): do any of the exceptions below constitute bugs?
|
|
engine.ElementKind.DYNAMIC: ElementKind.UNKNOWN,
|
|
engine.ElementKind.EMBEDDED_HTML_SCRIPT: ElementKind.UNKNOWN,
|
|
engine.ElementKind.ERROR: ElementKind.UNKNOWN,
|
|
engine.ElementKind.EXPORT: ElementKind.UNKNOWN,
|
|
engine.ElementKind.EXTERNAL_HTML_SCRIPT: ElementKind.UNKNOWN,
|
|
engine.ElementKind.HTML: ElementKind.UNKNOWN,
|
|
engine.ElementKind.IMPORT: ElementKind.UNKNOWN,
|
|
engine.ElementKind.NAME: ElementKind.UNKNOWN,
|
|
engine.ElementKind.UNIVERSE: ElementKind.UNKNOWN
|
|
});
|
|
}
|
|
|
|
void test_SearchResultKind() {
|
|
// TODO(paulberry): why does the MatchKind class exist at all? Can't we
|
|
// use SearchResultKind inside the analysis server?
|
|
new EnumTester<MatchKind, SearchResultKind>()
|
|
.run(newSearchResultKind_fromEngine);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Helper class for testing the correspondence between an analysis engine enum
|
|
* and an analysis server API enum.
|
|
*/
|
|
class EnumTester<EngineEnum, ApiEnum extends Enum> {
|
|
/**
|
|
* Test that the function [convert] properly converts all possible values of
|
|
* [EngineEnum] to an [ApiEnum] with the same name, with the exceptions noted
|
|
* in [exceptions]. For each key in [exceptions], if the corresponding value
|
|
* is null, then we check that converting the given key results in an error.
|
|
* If the corresponding value is an [ApiEnum], then we check that converting
|
|
* the given key results in the given value.
|
|
*/
|
|
void run(ApiEnum convert(EngineEnum value),
|
|
{Map<EngineEnum, ApiEnum> exceptions: const {}}) {
|
|
ClassMirror engineClass = reflectClass(EngineEnum);
|
|
engineClass.staticMembers.forEach((Symbol symbol, MethodMirror method) {
|
|
if (symbol == #values) {
|
|
return;
|
|
}
|
|
if (!method.isGetter) {
|
|
return;
|
|
}
|
|
String enumName = MirrorSystem.getName(symbol);
|
|
EngineEnum engineValue = engineClass.getField(symbol).reflectee;
|
|
expect(engineValue, new isInstanceOf<EngineEnum>());
|
|
if (exceptions.containsKey(engineValue)) {
|
|
ApiEnum expectedResult = exceptions[engineValue];
|
|
if (expectedResult == null) {
|
|
expect(() {
|
|
convert(engineValue);
|
|
}, throws);
|
|
} else {
|
|
ApiEnum apiValue = convert(engineValue);
|
|
expect(apiValue, equals(expectedResult));
|
|
}
|
|
} else {
|
|
ApiEnum apiValue = convert(engineValue);
|
|
expect(apiValue.name, equals(enumName));
|
|
}
|
|
});
|
|
}
|
|
}
|