| /******************************************************************************* |
| * Copyright (c) 2004 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.core.dom; |
| |
| import org.eclipse.jdt.core.compiler.CharOperation; |
| import org.eclipse.jdt.internal.compiler.lookup.Binding; |
| import org.eclipse.jdt.internal.compiler.lookup.FieldBinding; |
| import org.eclipse.jdt.internal.compiler.lookup.ImportBinding; |
| import org.eclipse.jdt.internal.compiler.lookup.ParameterizedTypeBinding; |
| import org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding; |
| import org.eclipse.jdt.internal.compiler.lookup.TypeVariableBinding; |
| import org.eclipse.jdt.internal.compiler.lookup.VariableBinding; |
| import org.eclipse.jdt.internal.compiler.lookup.WildcardBinding; |
| |
| /** |
| * Internal helper class for comparing bindings. |
| * |
| * @since 3.1 |
| */ |
| class BindingComparator { |
| /** |
| * @param bindings |
| * @param otherBindings |
| * @return true if both parameters are equals, false otherwise |
| */ |
| static boolean isEqual(TypeVariableBinding[] bindings, TypeVariableBinding[] otherBindings) { |
| if (bindings == null) { |
| return otherBindings == null; |
| } else if (otherBindings == null) { |
| return false; |
| } else { |
| int length = bindings.length; |
| int otherLength = otherBindings.length; |
| if (length != otherLength) { |
| return false; |
| } |
| for (int i = 0; i < length; i++) { |
| TypeVariableBinding typeVariableBinding = bindings[i]; |
| TypeVariableBinding typeVariableBinding2 = otherBindings[i]; |
| if (CharOperation.equals(typeVariableBinding.sourceName, typeVariableBinding2.sourceName) |
| && isEqual(typeVariableBinding.declaringElement, typeVariableBinding2.declaringElement, false) |
| && isEqual(typeVariableBinding.superclass, typeVariableBinding2.superclass, false) |
| && isEqual(typeVariableBinding.superInterfaces, typeVariableBinding2.superInterfaces, false)) { |
| continue; |
| } |
| return false; |
| } |
| return true; |
| } |
| } |
| |
| /** |
| * @param declaringElement |
| * @param declaringElement2 |
| * @return true if both parameters are equals, false otherwise |
| */ |
| static boolean isEqual(Binding declaringElement, Binding declaringElement2, boolean checkTypeVariables) { |
| if (declaringElement instanceof org.eclipse.jdt.internal.compiler.lookup.TypeBinding) { |
| if (!(declaringElement2 instanceof org.eclipse.jdt.internal.compiler.lookup.TypeBinding)){ |
| return false; |
| } |
| return isEqual((org.eclipse.jdt.internal.compiler.lookup.TypeBinding) declaringElement, |
| (org.eclipse.jdt.internal.compiler.lookup.TypeBinding) declaringElement2, |
| checkTypeVariables); |
| } else if (declaringElement instanceof org.eclipse.jdt.internal.compiler.lookup.MethodBinding) { |
| if (!(declaringElement2 instanceof org.eclipse.jdt.internal.compiler.lookup.MethodBinding)) { |
| return false; |
| } |
| return isEqual((org.eclipse.jdt.internal.compiler.lookup.MethodBinding) declaringElement, |
| (org.eclipse.jdt.internal.compiler.lookup.MethodBinding) declaringElement2, |
| checkTypeVariables); |
| } else if (declaringElement instanceof VariableBinding) { |
| if (!(declaringElement2 instanceof VariableBinding)) { |
| return false; |
| } |
| return isEqual((VariableBinding) declaringElement, |
| (VariableBinding) declaringElement2); |
| } else if (declaringElement instanceof org.eclipse.jdt.internal.compiler.lookup.PackageBinding) { |
| if (!(declaringElement2 instanceof org.eclipse.jdt.internal.compiler.lookup.PackageBinding)) { |
| return false; |
| } |
| org.eclipse.jdt.internal.compiler.lookup.PackageBinding packageBinding = (org.eclipse.jdt.internal.compiler.lookup.PackageBinding) declaringElement; |
| org.eclipse.jdt.internal.compiler.lookup.PackageBinding packageBinding2 = (org.eclipse.jdt.internal.compiler.lookup.PackageBinding) declaringElement2; |
| return CharOperation.equals(packageBinding.compoundName, packageBinding2.compoundName); |
| } else if (declaringElement instanceof ImportBinding) { |
| if (!(declaringElement2 instanceof ImportBinding)) { |
| return false; |
| } |
| ImportBinding importBinding = (ImportBinding) declaringElement; |
| ImportBinding importBinding2 = (ImportBinding) declaringElement2; |
| return importBinding.isStatic() == importBinding2.isStatic() |
| && importBinding.onDemand == importBinding2.onDemand |
| && CharOperation.equals(importBinding.compoundName, importBinding2.compoundName); |
| } |
| return false; |
| } |
| |
| static boolean isEqual(org.eclipse.jdt.internal.compiler.lookup.MethodBinding methodBinding, |
| org.eclipse.jdt.internal.compiler.lookup.MethodBinding methodBinding2) { |
| return isEqual(methodBinding, methodBinding2, true); |
| } |
| |
| static boolean isEqual(org.eclipse.jdt.internal.compiler.lookup.MethodBinding methodBinding, |
| org.eclipse.jdt.internal.compiler.lookup.MethodBinding methodBinding2, |
| boolean checkTypeVariables) { |
| if (checkTypeVariables) { |
| return (methodBinding == null && methodBinding2 == null) |
| || (CharOperation.equals(methodBinding.selector, methodBinding2.selector) |
| && isEqual(methodBinding.returnType, methodBinding2.returnType, false) |
| && isEqual(methodBinding.parameters, methodBinding2.parameters, false) |
| && isEqual(methodBinding.thrownExceptions, methodBinding2.thrownExceptions, false) |
| && isEqual(methodBinding.typeVariables, methodBinding2.typeVariables, false)) |
| && isEqual(methodBinding.declaringClass, methodBinding2.declaringClass, false); |
| } |
| return (methodBinding == null && methodBinding2 == null) |
| || (CharOperation.equals(methodBinding.selector, methodBinding2.selector) |
| && isEqual(methodBinding.returnType, methodBinding2.returnType, false) |
| && isEqual(methodBinding.parameters, methodBinding2.parameters, false) |
| && isEqual(methodBinding.thrownExceptions, methodBinding2.thrownExceptions, false)); |
| } |
| |
| static boolean isEqual(VariableBinding variableBinding, VariableBinding variableBinding2) { |
| return variableBinding.modifiers == variableBinding2.modifiers |
| && CharOperation.equals(variableBinding.name, variableBinding2.name) |
| && isEqual(variableBinding.type, variableBinding2.type); |
| } |
| |
| static boolean isEqual(FieldBinding fieldBinding, FieldBinding fieldBinding2) { |
| return fieldBinding.modifiers == fieldBinding2.modifiers |
| && CharOperation.equals(fieldBinding.name, fieldBinding2.name) |
| && isEqual(fieldBinding.type, fieldBinding2.type, false) |
| && isEqual(fieldBinding.declaringClass, fieldBinding2.declaringClass, false); |
| } |
| |
| /** |
| * @param bindings |
| * @param otherBindings |
| * @return true if both parameters are equals, false otherwise |
| */ |
| static boolean isEqual(org.eclipse.jdt.internal.compiler.lookup.TypeBinding[] bindings, org.eclipse.jdt.internal.compiler.lookup.TypeBinding[] otherBindings) { |
| return isEqual(bindings, otherBindings, true); |
| } |
| /** |
| * @param bindings |
| * @param otherBindings |
| * @return true if both parameters are equals, false otherwise |
| */ |
| static boolean isEqual(org.eclipse.jdt.internal.compiler.lookup.TypeBinding[] bindings, org.eclipse.jdt.internal.compiler.lookup.TypeBinding[] otherBindings, boolean checkTypeVariables) { |
| if (bindings == null) { |
| return otherBindings == null; |
| } else if (otherBindings == null) { |
| return false; |
| } else { |
| int length = bindings.length; |
| int otherLength = otherBindings.length; |
| if (length != otherLength) { |
| return false; |
| } |
| for (int i = 0; i < length; i++) { |
| if (!isEqual(bindings[i], otherBindings[i], checkTypeVariables)) { |
| return false; |
| } |
| } |
| return true; |
| } |
| } |
| static boolean isEqual(org.eclipse.jdt.internal.compiler.lookup.TypeBinding typeBinding, org.eclipse.jdt.internal.compiler.lookup.TypeBinding typeBinding2, boolean checkTypeVariables) { |
| if (typeBinding == null) { |
| return typeBinding2 == null; |
| } else if (typeBinding2 == null) { |
| return false; |
| } else if (typeBinding.isBaseType()) { |
| // base type |
| if (!typeBinding2.isBaseType()) { |
| return false; |
| } |
| return typeBinding.id == typeBinding2.id; |
| } else if (typeBinding.isArrayType()) { |
| // array case |
| if (!typeBinding2.isArrayType()) { |
| return false; |
| } |
| return typeBinding.dimensions() == typeBinding2.dimensions() |
| && isEqual(typeBinding.leafComponentType(), typeBinding2.leafComponentType(), checkTypeVariables); |
| } else { |
| // reference type |
| ReferenceBinding referenceBinding = (ReferenceBinding) typeBinding; |
| if (!(typeBinding2 instanceof ReferenceBinding)) { |
| return false; |
| } |
| ReferenceBinding referenceBinding2 = (ReferenceBinding) typeBinding2; |
| if (referenceBinding.isParameterizedType()) { |
| if (!referenceBinding2.isParameterizedType()) { |
| return false; |
| } |
| ParameterizedTypeBinding parameterizedTypeBinding = (ParameterizedTypeBinding) referenceBinding; |
| ParameterizedTypeBinding parameterizedTypeBinding2 = (ParameterizedTypeBinding) referenceBinding2; |
| if (checkTypeVariables) { |
| if (!isEqual(parameterizedTypeBinding.arguments, parameterizedTypeBinding2.arguments, false)) { |
| return false; |
| } |
| } |
| return CharOperation.equals(referenceBinding.compoundName, referenceBinding2.compoundName) |
| && (referenceBinding.isInterface() == referenceBinding2.isInterface()) |
| && (referenceBinding.isEnum() == referenceBinding2.isEnum()) |
| && (referenceBinding.isAnnotationType() == referenceBinding2.isAnnotationType()) |
| && (referenceBinding.modifiers == referenceBinding2.modifiers); |
| } else if (referenceBinding.isWildcard()) { |
| if (!referenceBinding2.isWildcard()) { |
| return false; |
| } |
| WildcardBinding wildcardBinding = (WildcardBinding) referenceBinding; |
| WildcardBinding wildcardBinding2 = (WildcardBinding) referenceBinding2; |
| return isEqual(wildcardBinding.bound, wildcardBinding2.bound) |
| && wildcardBinding.kind == wildcardBinding2.kind; |
| } else if (referenceBinding.isGenericType()) { |
| if (!referenceBinding2.isGenericType()) { |
| return false; |
| } |
| if (checkTypeVariables) { |
| if (!isEqual(referenceBinding.typeVariables(), referenceBinding2.typeVariables(), false)) { |
| return false; |
| } |
| } |
| return CharOperation.equals(referenceBinding.compoundName, referenceBinding2.compoundName) |
| && (referenceBinding.isGenericType() == referenceBinding2.isGenericType()) |
| && (referenceBinding.isRawType() == referenceBinding2.isRawType()) |
| && (referenceBinding.isInterface() == referenceBinding2.isInterface()) |
| && (referenceBinding.isEnum() == referenceBinding2.isEnum()) |
| && (referenceBinding.isAnnotationType() == referenceBinding2.isAnnotationType()) |
| && (referenceBinding.modifiers == referenceBinding2.modifiers); |
| } else if (referenceBinding instanceof TypeVariableBinding) { |
| if (!(referenceBinding2 instanceof TypeVariableBinding)) { |
| return false; |
| } |
| TypeVariableBinding typeVariableBinding = (TypeVariableBinding) referenceBinding; |
| TypeVariableBinding typeVariableBinding2 = (TypeVariableBinding) referenceBinding2; |
| if (checkTypeVariables) { |
| return CharOperation.equals(typeVariableBinding.sourceName, typeVariableBinding2.sourceName) |
| && isEqual(typeVariableBinding.declaringElement, typeVariableBinding2.declaringElement, false) |
| && isEqual(typeVariableBinding.superclass, typeVariableBinding2.superclass, false) |
| && isEqual(typeVariableBinding.superInterfaces, typeVariableBinding2.superInterfaces, false); |
| } else { |
| return CharOperation.equals(typeVariableBinding.sourceName, typeVariableBinding2.sourceName); |
| } |
| } else { |
| return CharOperation.equals(referenceBinding.compoundName, referenceBinding2.compoundName) |
| && (referenceBinding.isRawType() == referenceBinding2.isRawType()) |
| && (referenceBinding.isInterface() == referenceBinding2.isInterface()) |
| && (referenceBinding.isEnum() == referenceBinding2.isEnum()) |
| && (referenceBinding.isAnnotationType() == referenceBinding2.isAnnotationType()) |
| && (referenceBinding.modifiers == referenceBinding2.modifiers); |
| } |
| } |
| } |
| /** |
| * @param typeBinding |
| * @param typeBinding2 |
| * @return true if both parameters are equals, false otherwise |
| */ |
| static boolean isEqual(org.eclipse.jdt.internal.compiler.lookup.TypeBinding typeBinding, org.eclipse.jdt.internal.compiler.lookup.TypeBinding typeBinding2) { |
| return isEqual(typeBinding, typeBinding2, true); |
| } |
| } |