| /******************************************************************************* |
| * Copyright (c) 2000, 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.internal.compiler.lookup; |
| |
| import org.eclipse.jdt.internal.compiler.ast.Wildcard; |
| |
| /** |
| * Binding denoting a method after type parameter substitutions got performed. |
| * On parameterized type bindings, all methods got substituted, regardless whether |
| * their signature did involve generics or not, so as to get the proper declaringClass for |
| * these methods. |
| */ |
| public class ParameterizedMethodBinding extends MethodBinding { |
| |
| protected MethodBinding originalMethod; |
| |
| /** |
| * Create method of parameterized type, substituting original parameters/exception/return type with type arguments. |
| */ |
| public ParameterizedMethodBinding(ParameterizedTypeBinding parameterizedDeclaringClass, MethodBinding originalMethod, boolean isStatic) { |
| |
| super( |
| originalMethod.modifiers, |
| originalMethod.selector, |
| isStatic // no substitution if original was static |
| ? originalMethod.returnType |
| : parameterizedDeclaringClass.substitute(originalMethod.returnType), |
| isStatic // no substitution if original was static |
| ? originalMethod.parameters |
| : Scope.substitute(parameterizedDeclaringClass, originalMethod.parameters), |
| isStatic // no substitution if original was static |
| ? originalMethod.thrownExceptions |
| : Scope.substitute(parameterizedDeclaringClass, originalMethod.thrownExceptions), |
| parameterizedDeclaringClass); |
| this.originalMethod = originalMethod; |
| this.typeVariables = originalMethod.typeVariables; |
| } |
| |
| public ParameterizedMethodBinding() { |
| // no init |
| } |
| |
| /** |
| * The type of x.getClass() is substituted from 'Class<? extends Object>' into: 'Class<? extends |X|> where |X| is X's erasure. |
| */ |
| public static ParameterizedMethodBinding instantiateGetClass(TypeBinding receiverType, MethodBinding originalMethod, Scope scope) { |
| ParameterizedMethodBinding method = new ParameterizedMethodBinding(); |
| method.modifiers = originalMethod.modifiers; |
| method.selector = originalMethod.selector; |
| method.declaringClass = originalMethod.declaringClass; |
| method.typeVariables = NoTypeVariables; |
| method.originalMethod = originalMethod; |
| method.parameters = originalMethod.parameters; |
| method.thrownExceptions = originalMethod.thrownExceptions; |
| ReferenceBinding genericClassType = scope.getJavaLangClass(); |
| method.returnType = scope.createParameterizedType( |
| genericClassType, |
| new TypeBinding[] { scope.environment().createWildcard(genericClassType, 0, receiverType.erasure(), Wildcard.EXTENDS) }, |
| null); |
| return method; |
| } |
| |
| /** |
| * Returns true if some parameters got substituted. |
| */ |
| public boolean hasSubstitutedParameters() { |
| return this.parameters != originalMethod.parameters; |
| } |
| |
| /** |
| * Returns true if the return type got substituted. |
| */ |
| public boolean hasSubstitutedReturnType() { |
| return this.returnType != originalMethod.returnType; |
| } |
| |
| /** |
| * Returns the original method (as opposed to parameterized instances) |
| */ |
| public MethodBinding original() { |
| return this.originalMethod.original(); |
| } |
| } |