66 lines
2.1 KiB
Java
66 lines
2.1 KiB
Java
/*******************************************************************************
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* Copyright (c) 2002 - 2006 IBM Corporation.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* IBM Corporation - initial API and implementation
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*******************************************************************************/
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package com.ibm.wala.dataflow.IFDS;
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/**
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* A silly debugging aid that always returns the identity flow function
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*/
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public class IdentityFlowFunctions<T> implements IFlowFunctionMap<T> {
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private final static IdentityFlowFunctions SINGLETON = new IdentityFlowFunctions();
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@SuppressWarnings("unchecked")
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public static <T> IdentityFlowFunctions<T> singleton() {
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return SINGLETON;
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}
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private IdentityFlowFunctions() {
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}
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/*
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* @see com.ibm.wala.dataflow.IFDS.IFlowFunctionMap#getNormalFlowFunction(java.lang.Object, java.lang.Object)
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*/
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@Override
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public IUnaryFlowFunction getNormalFlowFunction(T src, T dest) {
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return IdentityFlowFunction.identity();
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}
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/*
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* @see com.ibm.wala.dataflow.IFDS.IFlowFunctionMap#getReturnFlowFunction(java.lang.Object, java.lang.Object, java.lang.Object)
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*/
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@Override
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public IFlowFunction getReturnFlowFunction(T call, T src, T dest) {
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return IdentityFlowFunction.identity();
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}
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/*
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* @see com.ibm.wala.dataflow.IFDS.IFlowFunctionMap#getCallToReturnFlowFunction(java.lang.Object, java.lang.Object)
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*/
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@Override
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public IUnaryFlowFunction getCallToReturnFlowFunction(T src, T dest) {
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return IdentityFlowFunction.identity();
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}
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/*
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* @see com.ibm.wala.dataflow.IFDS.IFlowFunctionMap#getCallNoneToReturnFlowFunction(java.lang.Object, java.lang.Object)
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*/
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@Override
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public IUnaryFlowFunction getCallNoneToReturnFlowFunction(T src, T dest) {
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return IdentityFlowFunction.identity();
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}
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@Override
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public IUnaryFlowFunction getCallFlowFunction(T src, T dest, T ret) {
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return IdentityFlowFunction.identity();
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}
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}
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