| // Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| import 'package:analyzer/dart/element/element.dart'; |
| import 'package:analyzer/dart/element/nullability_suffix.dart'; |
| import 'package:analyzer/dart/element/type.dart'; |
| import 'package:analyzer/src/dart/constant/value.dart'; |
| import 'package:analyzer/src/dart/element/type.dart'; |
| import 'package:analyzer/src/generated/resolver.dart'; |
| |
| /// Provide common functionality shared by the various TypeProvider |
| /// implementations. |
| abstract class TypeProviderBase implements TypeProvider { |
| @override |
| List<InterfaceType> get nonSubtypableTypes => <InterfaceType>[ |
| boolType, |
| doubleType, |
| intType, |
| nullType, |
| numType, |
| stringType |
| ]; |
| |
| @override |
| bool isObjectGetter(String id) { |
| PropertyAccessorElement element = objectType.element.getGetter(id); |
| return (element != null && !element.isStatic); |
| } |
| |
| @override |
| bool isObjectMember(String id) { |
| return isObjectGetter(id) || isObjectMethod(id); |
| } |
| |
| @override |
| bool isObjectMethod(String id) { |
| MethodElement element = objectType.element.getMethod(id); |
| return (element != null && !element.isStatic); |
| } |
| } |
| |
| class TypeProviderImpl extends TypeProviderBase { |
| final NullabilitySuffix _nullabilitySuffix; |
| final LibraryElement _coreLibrary; |
| final LibraryElement _asyncLibrary; |
| |
| ClassElement _futureElement; |
| ClassElement _futureOrElement; |
| ClassElement _iterableElement; |
| ClassElement _listElement; |
| ClassElement _mapElement; |
| ClassElement _setElement; |
| ClassElement _streamElement; |
| ClassElement _symbolElement; |
| |
| InterfaceType _boolType; |
| InterfaceType _deprecatedType; |
| InterfaceType _doubleType; |
| InterfaceType _functionType; |
| InterfaceType _futureDynamicType; |
| InterfaceType _futureNullType; |
| InterfaceType _futureOrNullType; |
| InterfaceType _futureOrType; |
| InterfaceType _futureType; |
| InterfaceType _intType; |
| InterfaceType _iterableDynamicType; |
| InterfaceType _iterableObjectType; |
| InterfaceType _iterableType; |
| InterfaceType _listType; |
| InterfaceType _mapType; |
| InterfaceType _mapObjectObjectType; |
| DartObjectImpl _nullObject; |
| InterfaceType _nullType; |
| InterfaceType _numType; |
| InterfaceType _objectType; |
| InterfaceType _setType; |
| InterfaceType _stackTraceType; |
| InterfaceType _streamDynamicType; |
| InterfaceType _streamType; |
| InterfaceType _stringType; |
| InterfaceType _symbolType; |
| InterfaceType _typeType; |
| |
| /// Initialize a newly created type provider to provide the types defined in |
| /// the given [coreLibrary] and [asyncLibrary]. |
| TypeProviderImpl( |
| LibraryElement coreLibrary, |
| LibraryElement asyncLibrary, { |
| NullabilitySuffix nullabilitySuffix = NullabilitySuffix.star, |
| }) : _nullabilitySuffix = nullabilitySuffix, |
| _coreLibrary = coreLibrary, |
| _asyncLibrary = asyncLibrary; |
| |
| @override |
| InterfaceType get boolType { |
| _boolType ??= _getType(_coreLibrary, "bool"); |
| return _boolType; |
| } |
| |
| @override |
| DartType get bottomType { |
| if (_nullabilitySuffix == NullabilitySuffix.none) { |
| return BottomTypeImpl.instance; |
| } |
| return BottomTypeImpl.instanceLegacy; |
| } |
| |
| @override |
| InterfaceType get deprecatedType { |
| _deprecatedType ??= _getType(_coreLibrary, "Deprecated"); |
| return _deprecatedType; |
| } |
| |
| @override |
| InterfaceType get doubleType { |
| _doubleType ??= _getType(_coreLibrary, "double"); |
| return _doubleType; |
| } |
| |
| @override |
| DartType get dynamicType => DynamicTypeImpl.instance; |
| |
| @override |
| InterfaceType get functionType { |
| _functionType ??= _getType(_coreLibrary, "Function"); |
| return _functionType; |
| } |
| |
| @override |
| InterfaceType get futureDynamicType { |
| _futureDynamicType ??= InterfaceTypeImpl.explicit( |
| futureElement, |
| [dynamicType], |
| nullabilitySuffix: _nullabilitySuffix, |
| ); |
| return _futureDynamicType; |
| } |
| |
| ClassElement get futureElement { |
| return _futureElement ??= _getClassElement(_asyncLibrary, 'Future'); |
| } |
| |
| @override |
| InterfaceType get futureNullType { |
| _futureNullType ??= InterfaceTypeImpl.explicit( |
| futureElement, |
| [nullType], |
| nullabilitySuffix: _nullabilitySuffix, |
| ); |
| return _futureNullType; |
| } |
| |
| ClassElement get futureOrElement { |
| return _futureOrElement ??= _getClassElement(_asyncLibrary, 'FutureOr'); |
| } |
| |
| @override |
| InterfaceType get futureOrNullType { |
| _futureOrNullType ??= InterfaceTypeImpl.explicit( |
| futureOrElement, |
| [nullType], |
| nullabilitySuffix: _nullabilitySuffix, |
| ); |
| return _futureOrNullType; |
| } |
| |
| @override |
| InterfaceType get futureOrType { |
| _futureOrType ??= _getType(_asyncLibrary, "FutureOr"); |
| return _futureOrType; |
| } |
| |
| @override |
| InterfaceType get futureType { |
| _futureType ??= _getType(_asyncLibrary, "Future"); |
| return _futureType; |
| } |
| |
| @override |
| InterfaceType get intType { |
| _intType ??= _getType(_coreLibrary, "int"); |
| return _intType; |
| } |
| |
| @override |
| InterfaceType get iterableDynamicType { |
| _iterableDynamicType ??= InterfaceTypeImpl.explicit( |
| iterableElement, |
| [dynamicType], |
| nullabilitySuffix: _nullabilitySuffix, |
| ); |
| return _iterableDynamicType; |
| } |
| |
| @override |
| ClassElement get iterableElement { |
| return _iterableElement ??= _getClassElement(_coreLibrary, 'Iterable'); |
| } |
| |
| @override |
| InterfaceType get iterableObjectType { |
| _iterableObjectType ??= InterfaceTypeImpl.explicit( |
| iterableElement, |
| [objectType], |
| nullabilitySuffix: _nullabilitySuffix, |
| ); |
| return _iterableObjectType; |
| } |
| |
| @override |
| InterfaceType get iterableType { |
| _iterableType ??= _getType(_coreLibrary, "Iterable"); |
| return _iterableType; |
| } |
| |
| @override |
| ClassElement get listElement { |
| return _listElement ??= _getClassElement(_coreLibrary, 'List'); |
| } |
| |
| @override |
| InterfaceType get listType { |
| _listType ??= _getType(_coreLibrary, "List"); |
| return _listType; |
| } |
| |
| @override |
| ClassElement get mapElement { |
| return _mapElement ??= _getClassElement(_coreLibrary, 'Map'); |
| } |
| |
| @override |
| InterfaceType get mapObjectObjectType { |
| _mapObjectObjectType ??= InterfaceTypeImpl.explicit( |
| mapElement, |
| [objectType, objectType], |
| nullabilitySuffix: _nullabilitySuffix, |
| ); |
| return _mapObjectObjectType; |
| } |
| |
| @override |
| InterfaceType get mapType { |
| _mapType ??= _getType(_coreLibrary, "Map"); |
| return _mapType; |
| } |
| |
| @override |
| DartType get neverType => BottomTypeImpl.instance; |
| |
| @override |
| DartObjectImpl get nullObject { |
| if (_nullObject == null) { |
| _nullObject = new DartObjectImpl(nullType, NullState.NULL_STATE); |
| } |
| return _nullObject; |
| } |
| |
| @override |
| InterfaceType get nullType { |
| _nullType ??= _getType(_coreLibrary, "Null"); |
| return _nullType; |
| } |
| |
| @override |
| InterfaceType get numType { |
| _numType ??= _getType(_coreLibrary, "num"); |
| return _numType; |
| } |
| |
| @override |
| InterfaceType get objectType { |
| _objectType ??= _getType(_coreLibrary, "Object"); |
| return _objectType; |
| } |
| |
| @override |
| ClassElement get setElement { |
| return _setElement ??= _getClassElement(_coreLibrary, 'Set'); |
| } |
| |
| @override |
| InterfaceType get setType { |
| return _setType ??= _getType(_coreLibrary, "Set"); |
| } |
| |
| @override |
| InterfaceType get stackTraceType { |
| _stackTraceType ??= _getType(_coreLibrary, "StackTrace"); |
| return _stackTraceType; |
| } |
| |
| @override |
| InterfaceType get streamDynamicType { |
| _streamDynamicType ??= InterfaceTypeImpl.explicit( |
| streamElement, |
| [dynamicType], |
| nullabilitySuffix: _nullabilitySuffix, |
| ); |
| return _streamDynamicType; |
| } |
| |
| @override |
| ClassElement get streamElement { |
| return _streamElement ??= _getClassElement(_asyncLibrary, 'Stream'); |
| } |
| |
| @override |
| InterfaceType get streamType { |
| _streamType ??= _getType(_asyncLibrary, "Stream"); |
| return _streamType; |
| } |
| |
| @override |
| InterfaceType get stringType { |
| _stringType ??= _getType(_coreLibrary, "String"); |
| return _stringType; |
| } |
| |
| @override |
| ClassElement get symbolElement { |
| return _symbolElement ??= _getClassElement(_coreLibrary, 'Symbol'); |
| } |
| |
| @override |
| InterfaceType get symbolType { |
| _symbolType ??= _getType(_coreLibrary, "Symbol"); |
| return _symbolType; |
| } |
| |
| @override |
| InterfaceType get typeType { |
| _typeType ??= _getType(_coreLibrary, "Type"); |
| return _typeType; |
| } |
| |
| @override |
| VoidType get voidType => VoidTypeImpl.instance; |
| |
| @override |
| InterfaceType futureOrType2(DartType valueType) { |
| return futureOrElement.instantiate( |
| typeArguments: [valueType], |
| nullabilitySuffix: _nullabilitySuffix, |
| ); |
| } |
| |
| @override |
| InterfaceType futureType2(DartType valueType) { |
| return futureElement.instantiate( |
| typeArguments: [valueType], |
| nullabilitySuffix: _nullabilitySuffix, |
| ); |
| } |
| |
| @override |
| InterfaceType iterableType2(DartType elementType) { |
| return iterableElement.instantiate( |
| typeArguments: [elementType], |
| nullabilitySuffix: _nullabilitySuffix, |
| ); |
| } |
| |
| @override |
| InterfaceType listType2(DartType elementType) { |
| return listElement.instantiate( |
| typeArguments: [elementType], |
| nullabilitySuffix: _nullabilitySuffix, |
| ); |
| } |
| |
| @override |
| InterfaceType mapType2(DartType keyType, DartType valueType) { |
| return mapElement.instantiate( |
| typeArguments: [keyType, valueType], |
| nullabilitySuffix: _nullabilitySuffix, |
| ); |
| } |
| |
| @override |
| InterfaceType setType2(DartType elementType) { |
| return setElement.instantiate( |
| typeArguments: [elementType], |
| nullabilitySuffix: _nullabilitySuffix, |
| ); |
| } |
| |
| @override |
| InterfaceType streamType2(DartType elementType) { |
| return streamElement.instantiate( |
| typeArguments: [elementType], |
| nullabilitySuffix: _nullabilitySuffix, |
| ); |
| } |
| |
| TypeProviderImpl withNullability(NullabilitySuffix nullabilitySuffix) { |
| if (_nullabilitySuffix == nullabilitySuffix) { |
| return this; |
| } |
| return TypeProviderImpl(_coreLibrary, _asyncLibrary, |
| nullabilitySuffix: nullabilitySuffix); |
| } |
| |
| /// Return the class with the given [name] from the given [library], or |
| /// throw a [StateError] if there is no class with the given name. |
| ClassElement _getClassElement(LibraryElement library, String name) { |
| var element = library.getType(name); |
| if (element == null) { |
| throw StateError('No definition of type $name'); |
| } |
| return element; |
| } |
| |
| /// Return the type with the given [name] from the given [library], or |
| /// throw a [StateError] if there is no class with the given name. |
| InterfaceType _getType(LibraryElement library, String name) { |
| var element = _getClassElement(library, name); |
| |
| var typeArguments = const <DartType>[]; |
| var typeParameters = element.typeParameters; |
| if (typeParameters.isNotEmpty) { |
| typeArguments = typeParameters.map((e) { |
| return TypeParameterTypeImpl( |
| e, |
| nullabilitySuffix: _nullabilitySuffix, |
| ); |
| }).toList(growable: false); |
| } |
| |
| return InterfaceTypeImpl.explicit( |
| element, |
| typeArguments, |
| nullabilitySuffix: _nullabilitySuffix, |
| ); |
| } |
| } |