/**
* Copyright (C) 2015 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package mujava.op.basic;
import openjava.mop.*;
import openjava.ptree.*;
import java.io.*;
import org.hamcrest.core.IsInstanceOf;
/**
* <p>Generate CDL (Constants DeLetion) mutants
* </p>
* @author Lin Deng
* @version 1.0
*/
public class CDL extends Arithmetic_OP
{
public CDL(FileEnvironment file_env, ClassDeclaration cdecl, CompilationUnit comp_unit)
{
super( file_env, comp_unit );
}
public void visit( BinaryExpression p ) throws ParseTreeException
{
Expression left = p.getLeft();
left.accept(this);
Expression right = p.getRight();
right.accept(this);
aorMutantGen(p);
}
public void visit(UnaryExpression p) throws ParseTreeException
{
// Expression mutant = p.getExpression();
// aor_outputToFile(p, mutant);
Expression expression = p.getExpression();
expression.accept(this);
aorMutantGen(p);
}
// public void visit(AssignmentExpression p) throws ParseTreeException
// {
// Expression left = p.getLeft();
// left.accept(this);
// Expression right = p.getRight();
// right.accept(this);
// aorMutantGen(p);
// }
// private void aorMutantGen(AssignmentExpression exp) {
// if(exp.getOperator()!=0) // not = single
// {
// AssignmentExpression mutant = new AssignmentExpression(exp.getLeft(), exp.getOperator(), exp.getRight());
// mutant.setOperator(0); // rebuild a mutant and set the op to =
// aor_outputToFile(exp, mutant);
// }
//
//
//}
private void aorMutantGen(UnaryExpression exp) {
Expression mutant = exp.getExpression();
Variable mutant2 = new Variable(" ");
// System.out.println(exp+" => "+mutant2);
if(!(mutant instanceof Variable)
&& !(mutant instanceof UnaryExpression)
&& !(mutant instanceof BinaryExpression)
&& !(mutant instanceof AssignmentExpression)
&& !(mutant instanceof ArrayAccess)
&& !(mutant instanceof MethodCall)
&& !(mutant instanceof ConditionalExpression)
&& !(mutant instanceof CastExpression)
&& !(mutant instanceof AllocationExpression)
&& !(mutant instanceof ArrayAllocationExpression)
&& !(mutant instanceof FieldAccess)) // if it is constant
{
aor_outputToFile(exp, mutant2);
}
}
/*
* UnaryExpression v
* BinaryExpression v
* ConditionalExpression v
* AssignmentExpression v
* CastExpression v
* AllocationExpression v
* ArrayAllocationExpression v
* Variable v
* MethodCall v
* SpecialName
* Literal
* ClassLiteral
* ArrayAccess v
* FieldAccess v
*/
private void aorMutantGen(BinaryExpression exp)
{
Expression mutantLeft = exp.getLeft();
Expression mutantRight = exp.getRight();
if(!(mutantLeft instanceof Variable)
&& !(mutantLeft instanceof UnaryExpression)
&& !(mutantLeft instanceof BinaryExpression)
&& !(mutantLeft instanceof AssignmentExpression)
&& !(mutantLeft instanceof ArrayAccess)
&& !(mutantLeft instanceof MethodCall)
&& !(mutantLeft instanceof ConditionalExpression)
&& !(mutantLeft instanceof CastExpression)
&& !(mutantLeft instanceof AllocationExpression)
&& !(mutantLeft instanceof ArrayAllocationExpression)
&& !(mutantLeft instanceof FieldAccess)) // if left is not variable, it's constant???
{
aor_outputToFile(exp, mutantRight); // delete it, only left right
}
if(!(mutantRight instanceof Variable)
&& !(mutantRight instanceof UnaryExpression)
&& !(mutantRight instanceof BinaryExpression)
&& !(mutantRight instanceof AssignmentExpression)
&& !(mutantRight instanceof ArrayAccess)
&& !(mutantRight instanceof MethodCall)
&& !(mutantRight instanceof ConditionalExpression)
&& !(mutantRight instanceof CastExpression)
&& !(mutantRight instanceof AllocationExpression)
&& !(mutantRight instanceof ArrayAllocationExpression)
&& !(mutantRight instanceof FieldAccess)) // if right is not variable, it's constant???
{
aor_outputToFile(exp, mutantLeft); // delete it, only left left
}
}
/**
* Output ODL mutants to file
* @param original
* @param mutant
*/
public void aor_outputToFile(BinaryExpression original, BinaryExpression mutant)
{
if (comp_unit == null)
return;
String f_name;
num++;
f_name = getSourceName("CDL");
String mutant_dir = getMuantID("CDL");
try
{
PrintWriter out = getPrintWriter(f_name);
ODL_Writer writer = new ODL_Writer(mutant_dir, out);
writer.setMutant(original, mutant);
writer.setMethodSignature(currentMethodSignature);
comp_unit.accept( writer );
out.flush(); out.close();
} catch ( IOException e )
{
System.err.println( "fails to create " + f_name );
} catch ( ParseTreeException e )
{
System.err.println( "errors during printing " + f_name );
e.printStackTrace();
}
}
public void aor_outputToFile(BinaryExpression original, Expression mutant)
{
if (comp_unit == null)
return;
String f_name;
num++;
f_name = getSourceName("CDL");
String mutant_dir = getMuantID("CDL");
try
{
PrintWriter out = getPrintWriter(f_name);
ODL_Writer writer = new ODL_Writer(mutant_dir, out);
writer.setMutant(original, mutant);
writer.setMethodSignature(currentMethodSignature);
comp_unit.accept( writer );
out.flush(); out.close();
} catch ( IOException e )
{
System.err.println( "fails to create " + f_name );
} catch ( ParseTreeException e )
{
System.err.println( "errors during printing " + f_name );
e.printStackTrace();
}
}
private void aor_outputToFile(UnaryExpression original, Expression mutant) {
if (comp_unit == null)
return;
String f_name;
num++;
f_name = getSourceName("CDL");
String mutant_dir = getMuantID("CDL");
try
{
PrintWriter out = getPrintWriter(f_name);
ODL_Writer writer = new ODL_Writer(mutant_dir, out);
writer.setMutant(original, mutant);
writer.setMethodSignature(currentMethodSignature);
comp_unit.accept( writer );
out.flush(); out.close();
} catch ( IOException e )
{
System.err.println( "fails to create " + f_name );
} catch ( ParseTreeException e )
{
System.err.println( "errors during printing " + f_name );
e.printStackTrace();
}
}
private void aor_outputToFile(AssignmentExpression original, AssignmentExpression mutant) {
if (comp_unit == null)
return;
String f_name;
num++;
f_name = getSourceName("CDL");
String mutant_dir = getMuantID("CDL");
try
{
PrintWriter out = getPrintWriter(f_name);
ODL_Writer writer = new ODL_Writer(mutant_dir, out);
writer.setMutant(original, mutant);
writer.setMethodSignature(currentMethodSignature);
comp_unit.accept( writer );
out.flush(); out.close();
} catch ( IOException e )
{
System.err.println( "fails to create " + f_name );
} catch ( ParseTreeException e )
{
System.err.println( "errors during printing " + f_name );
e.printStackTrace();
}
}
}