121 lines
3.9 KiB
Java
121 lines
3.9 KiB
Java
/*
|
|
* This program and the accompanying materials
|
|
* are made available under the terms of the Eclipse Public License v1.0
|
|
* which accompanies this distribution, and is available at
|
|
* http://www.eclipse.org/legal/epl-v10.html.
|
|
*
|
|
* This file is a derivative of code released under the terms listed below.
|
|
*
|
|
*/
|
|
/*
|
|
*
|
|
* Copyright (c) 2009-2012,
|
|
*
|
|
* Steve Suh <suhsteve@gmail.com>
|
|
*
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* 3. The names of the contributors may not be used to endorse or promote
|
|
* products derived from this software without specific prior written
|
|
* permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
*
|
|
*/
|
|
|
|
package org.scandroid.flow.types;
|
|
|
|
import com.ibm.wala.ipa.cfg.BasicBlockInContext;
|
|
import com.ibm.wala.ssa.ISSABasicBlock;
|
|
import com.ibm.wala.ssa.SSAInvokeInstruction;
|
|
import com.ibm.wala.ssa.analysis.IExplodedBasicBlock;
|
|
|
|
/** A flow to or from the parameter of a method. This can represent formal
|
|
* parameters of methods being analyzed, or actual parameters of methods
|
|
* being called. In the former case, the associated block is the entry
|
|
* block of the method. In the latter case, the block is the block containing
|
|
* the invoke instruction.
|
|
*
|
|
* @author atomb
|
|
*
|
|
* @param <E>
|
|
*/
|
|
public class ParameterFlow <E extends ISSABasicBlock> extends FlowType<E> {
|
|
|
|
private final int argNum;
|
|
|
|
public ParameterFlow(BasicBlockInContext<E> block,
|
|
int argNum, boolean source) {
|
|
super(block, source);
|
|
this.argNum = argNum;
|
|
}
|
|
|
|
public int getArgNum() {
|
|
return argNum;
|
|
}
|
|
|
|
@Override
|
|
public int hashCode() {
|
|
final int prime = 31;
|
|
int result = super.hashCode();
|
|
result = prime * result + argNum;
|
|
return result;
|
|
}
|
|
|
|
@Override
|
|
public boolean equals(Object obj) {
|
|
if (this == obj)
|
|
return true;
|
|
if (!super.equals(obj))
|
|
return false;
|
|
if (getClass() != obj.getClass())
|
|
return false;
|
|
@SuppressWarnings("unchecked")
|
|
ParameterFlow<E> other = (ParameterFlow<E>) obj;
|
|
if (argNum != other.argNum)
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
@Override
|
|
public String toString() {
|
|
return "ParameterFlow( argNum="+argNum+" "+super.toString()+")";
|
|
}
|
|
|
|
@Override
|
|
public String descString() {
|
|
String s = "arg(" + argNum + ")";
|
|
if(!getBlock().isEntryBlock()) {
|
|
SSAInvokeInstruction inv = (SSAInvokeInstruction) ((IExplodedBasicBlock) getBlock().getDelegate()).getInstruction();
|
|
s = s + ":" + inv.getDeclaredTarget().getSignature();
|
|
}
|
|
return s;
|
|
}
|
|
|
|
@Override
|
|
public <R> R visit(FlowTypeVisitor<E, R> v) {
|
|
return v.visitParameterFlow(this);
|
|
}
|
|
}
|