/**
* 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.symbolic.vm.string;
import java.util.ArrayList;
import java.util.Collections;
import org.evosuite.symbolic.expr.Expression;
import org.evosuite.symbolic.expr.Operator;
import org.evosuite.symbolic.expr.bv.IntegerValue;
import org.evosuite.symbolic.expr.bv.StringBinaryToIntegerExpression;
import org.evosuite.symbolic.expr.bv.StringMultipleToIntegerExpression;
import org.evosuite.symbolic.expr.ref.ReferenceConstant;
import org.evosuite.symbolic.expr.ref.ReferenceExpression;
import org.evosuite.symbolic.expr.str.StringValue;
import org.evosuite.symbolic.vm.SymbolicEnvironment;
import org.evosuite.symbolic.vm.SymbolicFunction;
import org.evosuite.symbolic.vm.SymbolicHeap;
public abstract class LastIndexOf extends SymbolicFunction {
private static final String LAST_INDEX_OF = "lastIndexOf";
public LastIndexOf(SymbolicEnvironment env, String desc) {
super(env, Types.JAVA_LANG_STRING, LAST_INDEX_OF, desc);
}
public final static class LastIndexOf_C extends LastIndexOf {
public LastIndexOf_C(SymbolicEnvironment env) {
super(env, Types.INT_TO_INT_DESCRIPTOR);
}
@Override
public Object executeFunction() {
String conc_left = (String) this.getConcReceiver();
ReferenceConstant symb_left = this.getSymbReceiver();
StringValue left_expr = env.heap
.getField(Types.JAVA_LANG_STRING,
SymbolicHeap.$STRING_VALUE, conc_left, symb_left,
conc_left);
IntegerValue right_expr = this.getSymbIntegerArgument(0);
int res = this.getConcIntRetVal();
if (left_expr.containsSymbolicVariable()
|| right_expr.containsSymbolicVariable()) {
StringBinaryToIntegerExpression strBExpr = new StringBinaryToIntegerExpression(
left_expr, Operator.LASTINDEXOFC, right_expr, (long) res);
return strBExpr;
}
return this.getSymbIntegerRetVal();
}
}
public final static class LastIndexOf_CI extends LastIndexOf {
public LastIndexOf_CI(SymbolicEnvironment env) {
super(env, Types.INT_INT_TO_INT_DESCRIPTOR);
}
@Override
public Object executeFunction() {
String conc_left = (String) this.getConcReceiver();
ReferenceConstant symb_left = this.getSymbReceiver();
StringValue left_expr = env.heap
.getField(Types.JAVA_LANG_STRING,
SymbolicHeap.$STRING_VALUE, conc_left, symb_left,
conc_left);
IntegerValue right_expr = this.getSymbIntegerArgument(0);
IntegerValue fromIndexExpr = this.getSymbIntegerArgument(1);
int res = this.getConcIntRetVal();
if (left_expr.containsSymbolicVariable()
|| right_expr.containsSymbolicVariable()
|| fromIndexExpr.containsSymbolicVariable()) {
StringMultipleToIntegerExpression strBExpr = new StringMultipleToIntegerExpression(
left_expr, Operator.LASTINDEXOFCI, right_expr,
new ArrayList<Expression<?>>(Collections
.singletonList(fromIndexExpr)),
(long) res);
return strBExpr;
}
return this.getSymbIntegerRetVal();
}
}
public final static class LastIndexOf_S extends LastIndexOf {
public LastIndexOf_S(SymbolicEnvironment env) {
super(env, Types.STR_TO_INT_DESCRIPTOR);
}
@Override
public Object executeFunction() {
String conc_left = (String) this.getConcReceiver();
ReferenceConstant symb_left = this.getSymbReceiver();
StringValue left_expr = env.heap
.getField(Types.JAVA_LANG_STRING,
SymbolicHeap.$STRING_VALUE, conc_left, symb_left,
conc_left);
String conc_right = (String) this.getConcArgument(0);
ReferenceConstant symb_right = (ReferenceConstant) this
.getSymbArgument(0);
StringValue right_expr = env.heap.getField(Types.JAVA_LANG_STRING,
SymbolicHeap.$STRING_VALUE, conc_right, symb_right,
conc_right);
int res = this.getConcIntRetVal();
if (left_expr.containsSymbolicVariable()
|| right_expr.containsSymbolicVariable()) {
StringBinaryToIntegerExpression strBExpr = new StringBinaryToIntegerExpression(
left_expr, Operator.LASTINDEXOFS, right_expr, (long) res);
return strBExpr;
}
return this.getSymbIntegerRetVal();
}
}
public final static class LastIndexOf_SI extends LastIndexOf {
public LastIndexOf_SI(SymbolicEnvironment env) {
super(env, Types.STR_INT_TO_INT_DESCRIPTOR);
}
@Override
public Object executeFunction() {
String conc_left = (String) this.getConcReceiver();
ReferenceConstant symb_left = this.getSymbReceiver();
StringValue left_expr = env.heap
.getField(Types.JAVA_LANG_STRING,
SymbolicHeap.$STRING_VALUE, conc_left, symb_left,
conc_left);
String conc_right = (String) this.getConcArgument(0);
ReferenceExpression symb_right = this.getSymbArgument(0);
IntegerValue fromIndexExpr = this.getSymbIntegerArgument(1);
int res = this.getConcIntRetVal();
if (symb_right instanceof ReferenceConstant) {
ReferenceConstant symb_non_null_right = (ReferenceConstant) symb_right;
StringValue right_expr = env.heap.getField(
Types.JAVA_LANG_STRING, SymbolicHeap.$STRING_VALUE,
conc_right, symb_non_null_right, conc_right);
if (left_expr.containsSymbolicVariable()
|| right_expr.containsSymbolicVariable()
|| fromIndexExpr.containsSymbolicVariable()) {
StringMultipleToIntegerExpression strBExpr = new StringMultipleToIntegerExpression(
left_expr, Operator.LASTINDEXOFSI, right_expr,
new ArrayList<Expression<?>>(Collections
.singletonList(fromIndexExpr)),
(long) res);
return strBExpr;
}
}
return this.getSymbIntegerRetVal();
}
}
}