/**
* Copyright (C) 2010-2017 Gordon Fraser, Andrea Arcuri and EvoSuite
* contributors
*
* This file is part of EvoSuite.
*
* EvoSuite is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 3.0 of the License, or
* (at your option) any later version.
*
* EvoSuite is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with EvoSuite. If not, see <http://www.gnu.org/licenses/>.
*/
package org.evosuite.testcase.variable;
import java.util.Arrays;
import java.util.List;
import org.apache.commons.lang3.ArrayUtils;
import org.evosuite.testcase.statements.Statement;
import org.evosuite.testcase.TestCase;
import org.evosuite.testcase.statements.ArrayStatement;
import org.evosuite.testcase.statements.AssignmentStatement;
import org.evosuite.utils.generic.GenericClass;
/**
* @author Gordon Fraser
*
*/
/*
* TODO: The length is currently stored in ArrayReference and the ArrayStatement.
* This is bound to lead to inconsistencies.
*/
public class ArrayReference extends VariableReferenceImpl {
private static final long serialVersionUID = 3309591356542131910L;
private int[] lengths;
/**
* <p>
* Constructor for ArrayReference.
* </p>
*
* @param tc
* a {@link org.evosuite.testcase.TestCase} object.
* @param clazz
* a {@link java.lang.Class} object.
*/
public ArrayReference(TestCase tc, Class<?> clazz) {
this(tc, new GenericClass(clazz),
new int[ArrayStatement.determineDimensions(clazz)]);
}
/**
* <p>
* Constructor for ArrayReference.
* </p>
*
* @param tc
* a {@link org.evosuite.testcase.TestCase} object.
* @param clazz
* a {@link GenericClass} object.
* @param lengths
* an array of int.
*/
public ArrayReference(TestCase tc, GenericClass clazz, int[] lengths) {
super(tc, clazz);
assert (lengths.length > 0);
// this.lengths = lengths;
setLengths(lengths);
}
/**
* <p>
* Constructor for ArrayReference.
* </p>
*
* @param tc
* a {@link org.evosuite.testcase.TestCase} object.
* @param clazz
* a {@link GenericClass} object.
* @param array_length
* a int.
*/
public ArrayReference(TestCase tc, GenericClass clazz, int array_length) {
this(tc, clazz, new int[] { array_length });
}
/**
* <p>
* getArrayLength
* </p>
*
* @return a int.
*/
public int getArrayLength() {
// assert lengths.length == 1;
return lengths[0];
}
/**
* <p>
* setArrayLength
* </p>
*
* @param l
* a int.
*/
public void setArrayLength(int l) {
assert (l >= 0);
// assert lengths.length == 1;
lengths[0] = l;
}
/**
* <p>
* Getter for the field <code>lengths</code>.
* </p>
*
* @return an array of int.
*/
public List<Integer> getLengths() {
return Arrays.asList(ArrayUtils.toObject(lengths));
}
/**
* <p>
* Setter for the field <code>lengths</code>.
* </p>
*
* @param lengths
* an array of int.
*/
public void setLengths(int[] lengths) {
this.lengths = new int[lengths.length];
for (int i = 0; i < lengths.length; i++)
this.lengths[i] = lengths[i];
}
/**
* {@inheritDoc}
*
* Create a copy of the current variable
*/
@Override
public VariableReference copy(TestCase newTestCase, int offset) {
VariableReference newRef = newTestCase.getStatement(getStPosition() + offset).getReturnValue();
if (newRef instanceof ArrayReference) {
ArrayReference otherArray = (ArrayReference) newRef;
otherArray.setLengths(lengths);
return otherArray;
} else {
// FIXXME: This part should be redundant
if (newRef.getComponentType() != null) {
ArrayReference otherArray = new ArrayReference(newTestCase, type, lengths);
newTestCase.getStatement(getStPosition() + offset).setRetval(otherArray);
return otherArray;
} else {
// This may happen when cloning a method statement which returns an Object that in fact is an array
// We'll just create a new ArrayReference in this case.
ArrayReference otherArray = new ArrayReference(newTestCase, type, lengths);
newTestCase.getStatement(getStPosition() + offset).setRetval(otherArray);
return otherArray;
// throw new RuntimeException("After cloning the array disappeared: "
// + getName() + "/" + newRef.getName() + " in test "
// + newTestCase.toCode() + " / old test: " + testCase.toCode());
}
}
}
/**
* <p>
* getArrayDimensions
* </p>
*
* @return a int.
*/
public int getArrayDimensions() {
return lengths.length;
}
/**
* <p>
* Setter for the field <code>lengths</code>.
* </p>
*
* @param lengths
* a {@link java.util.List} object.
*/
public void setLengths(List<Integer> lengths) {
this.lengths = new int[lengths.size()];
int idx = 0;
for (Integer length : lengths) {
this.lengths[idx] = length;
idx++;
}
}
public int getMaximumIndex() {
int max = 0;
for (Statement s : testCase) {
for(VariableReference var : s.getVariableReferences()) {
if(var instanceof ArrayIndex) {
ArrayIndex index = (ArrayIndex)var;
if(index.getArray().equals(this)) {
max = Math.max(max, index.getArrayIndex());
}
}
}
}
return max;
}
public boolean isInitialized(int index) {
return isInitialized(index, testCase.size());
}
public boolean isInitialized(int index, int position) {
int pos = 0;
for (Statement s : testCase) {
if(pos++ >= position)
return false;
if (s instanceof AssignmentStatement) {
VariableReference ret = s.getReturnValue();
if(ret instanceof ArrayIndex) {
ArrayIndex ai = (ArrayIndex)ret;
if(ai.getArray().equals(this) && ai.getArrayIndex() == index)
return true;
}
}
}
return false;
}
}