Linter Demo

Errors: 8

Warnings: 8

File: /home/fstrocco/Dart/dart/benchmark/devcompiler/lib/src/codegen/js_field_storage.dart

// 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 dev_compiler.src.codegen.js_field_storage; import 'dart:collection' show HashMap, HashSet; import 'package:analyzer/src/generated/ast.dart' show Identifier; import 'package:analyzer/src/generated/element.dart'; import 'package:dev_compiler/src/info.dart' show LibraryUnit; /// We use a storage slot for fields that override or can be overridden by /// getter/setter pairs. HashSet<FieldElement> findFieldsNeedingStorage(LibraryUnit library) { var overrides = new HashSet<FieldElement>(); for (var unit in library.partsThenLibrary) { for (var cls in unit.element.types) { var superclasses = getSuperclasses(cls); for (var field in cls.fields) { if (!field.isSynthetic && !overrides.contains(field)) { checkForPropertyOverride(field, superclasses, overrides); } } } } return overrides; } void checkForPropertyOverride(FieldElement field, List<ClassElement> superclasses, HashSet<FieldElement> overrides) { assert(!field.isSynthetic); var library = field.library; bool found = false; for (var superclass in superclasses) { var superprop = getProperty(superclass, library, field.name); if (superprop != null) { // If we find an abstract getter/setter pair, stop the search. var getter = superprop.getter; var setter = superprop.setter; if ((getter == null || getter.isAbstract) && (setter == null || setter.isAbstract)) { break; } found = true; // Record that the super property is overridden. if (superprop.library == library) overrides.add(superprop); } } // If this we found a super property, then this property overrides it. if (found) overrides.add(field); } PropertyInducingElement getProperty( ClassElement cls, LibraryElement fromLibrary, String name) { // Properties from a different library are not accessible. if (Identifier.isPrivateName(name) && cls.library != fromLibrary) { return null; } for (var accessor in cls.accessors) { var prop = accessor.variable; if (prop.name == name) return prop; } return null; } List<ClassElement> getSuperclasses(ClassElement cls) { var result = <ClassElement>[]; var visited = new HashSet<ClassElement>(); while (cls != null && visited.add(cls)) { for (var mixinType in cls.mixins.reversed) { var mixin = mixinType.element; if (mixin != null) result.add(mixin); } var supertype = cls.supertype; if (supertype == null) break; cls = supertype.element; result.add(cls); } return result; }