59 lines
2.1 KiB
Java
59 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 map from an edge in a supergraph to a flow function
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*
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* @param <T> type of node in the supergraph
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*/
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public interface IFlowFunctionMap<T> {
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/**
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* @param src
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* @param dest
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* @return the flow function for a "normal" edge in the supergraph from src -> dest
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*/
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public IUnaryFlowFunction getNormalFlowFunction(T src, T dest);
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/**
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* @param src the call block
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* @param dest the entry of the callee
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* @param ret the block that will be returned to, in the caller. This can be null .. signifying that facts can flow
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* into the callee but not return
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* @return the flow function for a "call" edge in the supergraph from src -> dest
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*/
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public IUnaryFlowFunction getCallFlowFunction(T src, T dest, T ret);
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/**
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* @param call supergraph node of the call instruction for this return edge.
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* @param src
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* @param dest
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* @return the flow function for a "return" edge in the supergraph from src -> dest
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*/
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public IFlowFunction getReturnFlowFunction(T call, T src, T dest);
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/**
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* @param src
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* @param dest
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* @return the flow function for a "call-to-return" edge in the supergraph from src -> dest
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*/
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public IUnaryFlowFunction getCallToReturnFlowFunction(T src, T dest);
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/**
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* @param src
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* @param dest
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* @return the flow function for a "call-to-return" edge in the supergraph from src -> dest,
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* when the supergraph does not contain any callees of src. This happens via, e.g., slicing.
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*/
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public IUnaryFlowFunction getCallNoneToReturnFlowFunction(T src, T dest);
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}
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