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Eclipse Compiler for Java(TM)
/*******************************************************************************
* 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;
}
}