org.evosuite.instrumentation.BooleanArrayInterpreter.java Source code

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Here is the source code for org.evosuite.instrumentation.BooleanArrayInterpreter.java

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/**
 * Copyright (C) 2010-2016 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.instrumentation;

import java.util.List;

import org.objectweb.asm.Type;
import org.objectweb.asm.tree.AbstractInsnNode;
import org.objectweb.asm.tree.MethodInsnNode;
import org.objectweb.asm.tree.analysis.AnalyzerException;
import org.objectweb.asm.tree.analysis.BasicInterpreter;
import org.objectweb.asm.tree.analysis.BasicValue;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * <p>BooleanArrayInterpreter class.</p>
 *
 * @author Gordon Fraser
 */
public class BooleanArrayInterpreter extends BasicInterpreter {

    /** Constant <code>logger</code> */
    protected static Logger logger = LoggerFactory.getLogger(BooleanArrayInterpreter.class);

    /** Constant <code>BYTE</code> */
    public final static BasicValue BYTE = new BasicValue(null);

    /** Constant <code>BOOLEAN</code> */
    public final static BasicValue BOOLEAN = new BasicValue(null);

    /** Constant <code>BOOLEAN_ARRAY</code> */
    public final static BasicValue BOOLEAN_ARRAY = new BasicValue(null);

    /** Constant <code>BYTE_ARRAY</code> */
    public final static BasicValue BYTE_ARRAY = new BasicValue(null);

    /** Constant <code>INT_ARRAY</code> */
    public final static BasicValue INT_ARRAY = new BasicValue(null);

    /** {@inheritDoc} */
    @Override
    public BasicValue newValue(Type type) {
        if (type == null) {
            return BasicValue.UNINITIALIZED_VALUE;
        }
        switch (type.getSort()) {
        case Type.ARRAY:
            String desc = type.getDescriptor();
            if (desc.equals("[Z"))
                return BOOLEAN_ARRAY;
            else if (desc.equals("[I"))
                return INT_ARRAY;
            else if (desc.equals("[B"))
                return BYTE_ARRAY;
            else
                return super.newValue(type);
        default:
            return super.newValue(type);
        }
    }

    /*
       @Override
       public Value newOperation(AbstractInsnNode insn) throws AnalyzerException {
        
     if (insn.getOpcode() == BIPUSH) {
        return BYTE;
     } else if (insn.getOpcode() == GETSTATIC) {
        FieldInsnNode fn = (FieldInsnNode) insn;
        if (Type.getType(fn.desc).equals(Type.BOOLEAN_TYPE)) {
           return BOOLEAN;
        } else if (fn.desc.equals("[Z")) {
           return BOOLEAN_ARRAY;
        } else if (fn.desc.equals("[B")) {
           return BYTE_ARRAY;
        } else if (fn.desc.equals("[I")) {
           return INT_ARRAY;
        } else if (Type.getType(fn.desc).equals(Type.BYTE_TYPE)) {
           return BYTE;
        } else
           return super.newOperation(insn);
     } else {
        return super.newOperation(insn);
     }
       }
        
       @Override
       public Value unaryOperation(AbstractInsnNode insn, Value value)
          throws AnalyzerException {
     if (insn.getOpcode() == NEWARRAY) {
        IntInsnNode in = (IntInsnNode) insn;
        if (in.operand == Opcodes.T_BOOLEAN) {
           return BOOLEAN_ARRAY;
        } else if (in.operand == Opcodes.T_BYTE) {
           return BYTE_ARRAY;
        } else if (in.operand == Opcodes.T_INT) {
           return INT_ARRAY;
        } else {
           return super.unaryOperation(insn, value);
        }
     } else if (insn.getOpcode() == ANEWARRAY) {
        TypeInsnNode tn = (TypeInsnNode) insn;
        if (tn.desc.equals("[Z")) {
           return BOOLEAN_ARRAY;
        } else if (tn.desc.equals("[B")) {
           return BYTE_ARRAY;
        } else if (tn.desc.equals("[I")) {
           return INT_ARRAY;
        } else {
           return super.unaryOperation(insn, value);
        }
     } else if (insn.getOpcode() == GETFIELD || insn.getOpcode() == GETSTATIC) {
        FieldInsnNode fn = (FieldInsnNode) insn;
        if (Type.getType(fn.desc).equals(Type.BOOLEAN_TYPE)) {
           return BOOLEAN;
        } else if (fn.desc.equals("[Z")) {
           return BOOLEAN_ARRAY;
        } else if (fn.desc.equals("[B")) {
           return BYTE_ARRAY;
        } else if (fn.desc.equals("[I")) {
           return INT_ARRAY;
        } else if (Type.getType(fn.desc).equals(Type.BYTE_TYPE)) {
           return BYTE;
        } else
           return super.unaryOperation(insn, value);
     } else if (insn.getOpcode() == CHECKCAST) {
        TypeInsnNode tn = (TypeInsnNode) insn;
        if (Type.getType(tn.desc).equals(Type.BOOLEAN_TYPE)) {
           return BOOLEAN;
        } else if (tn.desc.equals("[Z")) {
           return BOOLEAN_ARRAY;
        } else if (tn.desc.equals("[I")) {
           return INT_ARRAY;
        } else if (tn.desc.equals("[B")) {
           return BYTE_ARRAY;
        } else {
           return super.unaryOperation(insn, value);
        }
     } else {
        return super.unaryOperation(insn, value);
     }
       }
       */

    /** {@inheritDoc} */
    @SuppressWarnings("rawtypes")
    @Override
    public BasicValue naryOperation(AbstractInsnNode insn, List values) throws AnalyzerException {
        if (insn.getOpcode() == INVOKESTATIC || insn.getOpcode() == INVOKEVIRTUAL
                || insn.getOpcode() == INVOKEINTERFACE) {
            MethodInsnNode mn = (MethodInsnNode) insn;

            if (Type.getReturnType(mn.desc).equals(Type.BOOLEAN_TYPE)) {
                return BOOLEAN;
            } else if (mn.desc.equals("[Z")) {
                return BOOLEAN_ARRAY;
            } else if (mn.desc.equals("[B")) {
                return BYTE_ARRAY;
            } else if (mn.desc.equals("[I")) {
                return INT_ARRAY;
            } else if (Type.getReturnType(mn.desc).equals(Type.BYTE_TYPE)) {
                return BYTE;
            } else {
                if (mn.name.equals("clone") && mn.owner.equals("[I"))
                    return INT_ARRAY;
                else if (mn.name.equals("clone") && mn.owner.equals("[Z"))
                    return BOOLEAN_ARRAY;
                else if (mn.name.equals("clone") && mn.owner.equals("[B"))
                    return BYTE_ARRAY;
                else {
                    return super.naryOperation(insn, values);
                }
            }
        } else {
            return super.naryOperation(insn, values);
        }
    }
    /*
       @Override
       public Value copyOperation(AbstractInsnNode insn, Value value)
          throws AnalyzerException {
        
     if (insn.getOpcode() == Opcodes.ALOAD) {
        VarInsnNode vn = (VarInsnNode) insn;
        // Check local variable array if the index of this value is a boolean array? Maybe it's in value?
     }
       }
       */
}