Linter Demo Errors: 4Warnings: 2File: /home/fstrocco/Dart/dart/benchmark/compiler/lib/src/types/forwarding_type_mask.dart // Copyright (c) 2013, 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. part of types; /** * A type mask that wraps an other one, and delegate all its * implementation methods to it. */ abstract class ForwardingTypeMask implements TypeMask { TypeMask get forwardTo; ForwardingTypeMask(); bool get isEmpty => forwardTo.isEmpty; bool get isNullable => forwardTo.isNullable; bool get isExact => forwardTo.isExact; bool get isUnion => false; bool get isContainer => false; bool get isMap => false; bool get isDictionary => false; bool get isValue => false; bool get isForwarding => true; bool isInMask(TypeMask other, ClassWorld classWorld) { return forwardTo.isInMask(other, classWorld); } bool containsMask(TypeMask other, ClassWorld classWorld) { return forwardTo.containsMask(other, classWorld); } bool containsOnlyInt(ClassWorld classWorld) { return forwardTo.containsOnlyInt(classWorld); } bool containsOnlyDouble(ClassWorld classWorld) { return forwardTo.containsOnlyDouble(classWorld); } bool containsOnlyNum(ClassWorld classWorld) { return forwardTo.containsOnlyNum(classWorld); } bool containsOnlyBool(ClassWorld classWorld) { return forwardTo.containsOnlyBool(classWorld); } bool containsOnlyString(ClassWorld classWorld) { return forwardTo.containsOnlyString(classWorld); } bool containsOnly(ClassElement element) { return forwardTo.containsOnly(element); } bool satisfies(ClassElement cls, ClassWorld classWorld) { return forwardTo.satisfies(cls, classWorld); } bool contains(ClassElement type, ClassWorld classWorld) { return forwardTo.contains(type, classWorld); } bool containsAll(ClassWorld classWorld) { return forwardTo.containsAll(classWorld); } ClassElement singleClass(ClassWorld classWorld) { return forwardTo.singleClass(classWorld); } TypeMask union(other, ClassWorld classWorld) { if (this == other) { return this; } else if (equalsDisregardNull(other)) { return other.isNullable ? other : this; } else if (other.isEmpty) { return other.isNullable ? this.nullable() : this; } return forwardTo.union(other, classWorld); } TypeMask intersection(TypeMask other, ClassWorld classWorld) { return forwardTo.intersection(other, classWorld); } bool needsNoSuchMethodHandling(Selector selector, ClassWorld classWorld) { return forwardTo.needsNoSuchMethodHandling(selector, classWorld); } bool canHit(Element element, Selector selector, ClassWorld classWorld) { return forwardTo.canHit(element, selector, classWorld); } Element locateSingleElement(Selector selector, Compiler compiler) { return forwardTo.locateSingleElement(selector, compiler); } bool equalsDisregardNull(other) { if (other is! ForwardingTypeMask) return false; if (forwardTo.isNullable) { return forwardTo == other.forwardTo.nullable(); } else { return forwardTo == other.forwardTo.nonNullable(); } } bool operator==(other) { return equalsDisregardNull(other) && isNullable == other.isNullable; } int get hashCode => throw "Subclass should implement hashCode getter"; }