| /******************************************************************************* |
| * Copyright (c) 2011 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.compiler.lookup; |
| |
| /** |
| * Binding denoting a polymorphic method |
| */ |
| public class PolymorphicMethodBinding extends MethodBinding { |
| |
| protected MethodBinding polymorphicMethod; |
| |
| public PolymorphicMethodBinding(MethodBinding polymorphicMethod, TypeBinding[] parameterTypes) { |
| super( |
| polymorphicMethod.modifiers, |
| polymorphicMethod.selector, |
| polymorphicMethod.returnType, |
| parameterTypes, |
| polymorphicMethod.thrownExceptions, |
| polymorphicMethod.declaringClass); |
| this.polymorphicMethod = polymorphicMethod; |
| this.tagBits = polymorphicMethod.tagBits; |
| } |
| |
| public PolymorphicMethodBinding(MethodBinding polymorphicMethod, TypeBinding returnType, TypeBinding[] parameterTypes) { |
| super( |
| polymorphicMethod.modifiers, |
| polymorphicMethod.selector, |
| returnType, |
| parameterTypes, |
| polymorphicMethod.thrownExceptions, |
| polymorphicMethod.declaringClass); |
| this.polymorphicMethod = polymorphicMethod; |
| this.tagBits = polymorphicMethod.tagBits; |
| } |
| |
| @Override |
| public MethodBinding original() { |
| return this.polymorphicMethod; |
| } |
| |
| @Override |
| public boolean isPolymorphic() { |
| return true; |
| } |
| |
| public boolean matches(TypeBinding[] matchingParameters, TypeBinding matchingReturnType) { |
| int cachedParametersLength = this.parameters == null ? 0 : this.parameters.length; |
| int matchingParametersLength = matchingParameters == null ? 0 : matchingParameters.length; |
| if (matchingParametersLength != cachedParametersLength) { |
| return false; |
| } |
| for (int j = 0; j < cachedParametersLength; j++){ |
| if (TypeBinding.notEquals(this.parameters[j], matchingParameters[j])) { |
| return false; |
| } |
| } |
| TypeBinding cachedReturnType = this.returnType; |
| if (matchingReturnType == null) { |
| if (cachedReturnType != null) { |
| return false; |
| } |
| } else if (cachedReturnType == null) { |
| return false; |
| } else if (TypeBinding.notEquals(matchingReturnType, cachedReturnType)) { |
| return false; |
| } |
| // all arguments match |
| return true; |
| } |
| |
| /* |
| * Even if polymorphic methods are varargs method, we don't want them to be treated as varargs method |
| */ |
| @Override |
| public boolean isVarargs() { |
| return false; |
| } |
| } |