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| 1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 | 4 |
| 5 library computer.overrides; | 5 library computer.overrides; |
| 6 | 6 |
| 7 import 'package:analysis_server/src/collections.dart'; | 7 import 'package:analysis_server/src/collections.dart'; |
| 8 import 'package:analysis_server/src/protocol_server.dart'; | 8 import 'package:analysis_server/src/protocol_server.dart'; |
| 9 import 'package:analyzer/src/generated/ast.dart'; | 9 import 'package:analyzer/src/generated/ast.dart'; |
| 10 import 'package:analyzer/src/generated/element.dart' as engine; | 10 import 'package:analyzer/src/generated/element.dart' as engine; |
| 11 | 11 |
| 12 | |
| 13 /** | 12 /** |
| 14 * A computer for class member overrides in a Dart [CompilationUnit]. | 13 * A computer for class member overrides in a Dart [CompilationUnit]. |
| 15 */ | 14 */ |
| 16 class DartUnitOverridesComputer { | 15 class DartUnitOverridesComputer { |
| 17 final CompilationUnit _unit; | 16 final CompilationUnit _unit; |
| 18 | 17 |
| 19 final List<Override> _overrides = <Override>[]; | 18 final List<Override> _overrides = <Override>[]; |
| 20 engine.ClassElement _currentClass; | 19 engine.ClassElement _currentClass; |
| 21 | 20 |
| 22 DartUnitOverridesComputer(this._unit); | 21 DartUnitOverridesComputer(this._unit); |
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| 59 List<engine.Element> interfaceEngineElements = <engine.Element>[]; | 58 List<engine.Element> interfaceEngineElements = <engine.Element>[]; |
| 60 for (engine.InterfaceType interfaceType in _currentClass.interfaces) { | 59 for (engine.InterfaceType interfaceType in _currentClass.interfaces) { |
| 61 engine.ClassElement interfaceElement = interfaceType.element; | 60 engine.ClassElement interfaceElement = interfaceType.element; |
| 62 engine.Element interfaceMember = _lookupMember(interfaceElement, name); | 61 engine.Element interfaceMember = _lookupMember(interfaceElement, name); |
| 63 if (interfaceMember != null) { | 62 if (interfaceMember != null) { |
| 64 interfaceEngineElements.add(interfaceMember); | 63 interfaceEngineElements.add(interfaceMember); |
| 65 } | 64 } |
| 66 } | 65 } |
| 67 // is there any override? | 66 // is there any override? |
| 68 if (superEngineElement != null || interfaceEngineElements.isNotEmpty) { | 67 if (superEngineElement != null || interfaceEngineElements.isNotEmpty) { |
| 69 OverriddenMember superMember = superEngineElement != null ? | 68 OverriddenMember superMember = superEngineElement != null |
| 70 newOverriddenMember_fromEngine(superEngineElement) : | 69 ? newOverriddenMember_fromEngine(superEngineElement) |
| 71 null; | 70 : null; |
| 72 List<OverriddenMember> interfaceMembers = interfaceEngineElements.map( | 71 List<OverriddenMember> interfaceMembers = interfaceEngineElements |
| 73 (engine.Element member) => newOverriddenMember_fromEngine(member)).toL
ist(); | 72 .map( |
| 74 _overrides.add( | 73 (engine.Element member) => newOverriddenMember_fromEngine(member)) |
| 75 new Override( | 74 .toList(); |
| 76 offset, | 75 _overrides.add(new Override(offset, length, |
| 77 length, | 76 superclassMember: superMember, |
| 78 superclassMember: superMember, | 77 interfaceMembers: nullIfEmpty(interfaceMembers))); |
| 79 interfaceMembers: nullIfEmpty(interfaceMembers))); | |
| 80 } | 78 } |
| 81 } | 79 } |
| 82 | 80 |
| 83 static engine.Element _lookupMember(engine.ClassElement classElement, | 81 static engine.Element _lookupMember( |
| 84 String name) { | 82 engine.ClassElement classElement, String name) { |
| 85 if (classElement == null) { | 83 if (classElement == null) { |
| 86 return null; | 84 return null; |
| 87 } | 85 } |
| 88 engine.LibraryElement library = classElement.library; | 86 engine.LibraryElement library = classElement.library; |
| 89 // method | 87 // method |
| 90 engine.Element member = classElement.lookUpMethod(name, library); | 88 engine.Element member = classElement.lookUpMethod(name, library); |
| 91 if (member != null) { | 89 if (member != null) { |
| 92 return member; | 90 return member; |
| 93 } | 91 } |
| 94 // getter | 92 // getter |
| 95 member = classElement.lookUpGetter(name, library); | 93 member = classElement.lookUpGetter(name, library); |
| 96 if (member != null) { | 94 if (member != null) { |
| 97 return member; | 95 return member; |
| 98 } | 96 } |
| 99 // setter | 97 // setter |
| 100 member = classElement.lookUpSetter(name + '=', library); | 98 member = classElement.lookUpSetter(name + '=', library); |
| 101 if (member != null) { | 99 if (member != null) { |
| 102 return member; | 100 return member; |
| 103 } | 101 } |
| 104 // not found | 102 // not found |
| 105 return null; | 103 return null; |
| 106 } | 104 } |
| 107 } | 105 } |
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