Example usage for org.objectweb.asm Opcodes IRETURN

List of usage examples for org.objectweb.asm Opcodes IRETURN

Introduction

In this page you can find the example usage for org.objectweb.asm Opcodes IRETURN.

Prototype

int IRETURN

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Usage

From source file:org.cacheonix.impl.transformer.ByteInstructionTest.java

License:LGPL

/**
 * Test method for {@link ByteInstruction#getReturnCode(String desc)} .
 *///from  w w  w  . j av  a 2s  .co  m
public void testGetReturnCode() {

    String desc = "(IF)V";
    int ret = ByteInstruction.getReturnCode(desc);
    assertEquals(ret, Opcodes.RETURN);

    desc = "(IF)I";
    ret = ByteInstruction.getReturnCode(desc);
    assertEquals(ret, Opcodes.IRETURN);

    desc = "(IF)D";
    ret = ByteInstruction.getReturnCode(desc);
    assertEquals(ret, Opcodes.DRETURN);

    desc = "(IF)Ljava/lang/Object;";
    ret = ByteInstruction.getReturnCode(desc);
    assertEquals(ret, Opcodes.ARETURN);

}

From source file:org.coldswap.util.MethodUtil.java

License:Open Source License

public static int getRetOpcodeToReplace(Type retType) {
    String retDesc = retType.getDescriptor();
    int opcode = Opcodes.IRETURN;
    if ("Z".equals(retDesc)) {
        opcode = Opcodes.IRETURN;//  ww w.j  a  v  a  2s . c  o  m
    } else if ("B".equals(retDesc)) {
        opcode = Opcodes.IRETURN;
    } else if ("C".equals(retDesc)) {
        opcode = Opcodes.IRETURN;
    } else if ("S".equals(retDesc)) {
        opcode = Opcodes.IRETURN;
    } else if ("I".equals(retDesc)) {
        opcode = Opcodes.IRETURN;
    } else if ("J".equals(retDesc)) {
        opcode = Opcodes.LRETURN;
    } else if ("F".equals(retDesc)) {
        opcode = Opcodes.FRETURN;
    } else if ("D".equals(retDesc)) {
        opcode = Opcodes.DRETURN;
    }
    return opcode;
}

From source file:org.decojer.cavaj.readers.asm.ReadMethodVisitor.java

License:Open Source License

@Override
public void visitInsn(final int opcode) {
    T t = null;//from   www  .  j a  va2s. c  om
    int iValue = Integer.MIN_VALUE;
    Object oValue = null;

    switch (opcode) {
    case Opcodes.NOP:
        // nothing to do, ignore
        break;
    /*******
     * ADD *
     *******/
    case Opcodes.DADD:
        t = T.DOUBLE;
        // fall through
    case Opcodes.FADD:
        if (t == null) {
            t = T.FLOAT;
        }
        // fall through
    case Opcodes.IADD:
        if (t == null) {
            t = T.INT;
        }
        // fall through
    case Opcodes.LADD:
        if (t == null) {
            t = T.LONG;
        }
        add(new ADD(this.ops.size(), opcode, this.line, t));
        break;
    /*********
     * ALOAD *
     *********/
    case Opcodes.AALOAD:
        t = T.REF;
        // fall through
    case Opcodes.BALOAD:
        if (t == null) {
            t = T.SMALL;
        }
        // fall through
    case Opcodes.CALOAD:
        if (t == null) {
            t = T.CHAR;
        }
        // fall through
    case Opcodes.DALOAD:
        if (t == null) {
            t = T.DOUBLE;
        }
        // fall through
    case Opcodes.FALOAD:
        if (t == null) {
            t = T.FLOAT;
        }
        // fall through
    case Opcodes.IALOAD:
        if (t == null) {
            t = T.INT;
        }
        // fall through
    case Opcodes.LALOAD:
        if (t == null) {
            t = T.LONG;
        }
        // fall through
    case Opcodes.SALOAD:
        if (t == null) {
            t = T.SHORT;
        }
        add(new ALOAD(this.ops.size(), opcode, this.line, t));
        break;
    /*******
     * AND *
     *******/
    case Opcodes.IAND:
        t = T.AINT;
        // fall through
    case Opcodes.LAND:
        if (t == null) {
            t = T.LONG;
        }
        add(new AND(this.ops.size(), opcode, this.line, t));
        break;
    /***************
     * ARRAYLENGTH *
     ***************/
    case Opcodes.ARRAYLENGTH:
        add(new ARRAYLENGTH(this.ops.size(), opcode, this.line));
        break;
    /**********
     * ASTORE *
     **********/
    case Opcodes.AASTORE:
        t = T.REF;
        // fall through
    case Opcodes.BASTORE:
        if (t == null) {
            t = T.SMALL;
        }
        // fall through
    case Opcodes.CASTORE:
        if (t == null) {
            t = T.CHAR;
        }
        // fall through
    case Opcodes.DASTORE:
        if (t == null) {
            t = T.DOUBLE;
        }
        // fall through
    case Opcodes.FASTORE:
        if (t == null) {
            t = T.FLOAT;
        }
        // fall through
    case Opcodes.IASTORE:
        if (t == null) {
            t = T.INT;
        }
        // fall through
    case Opcodes.LASTORE:
        if (t == null) {
            t = T.LONG;
        }
        // fall through
    case Opcodes.SASTORE:
        if (t == null) {
            t = T.SHORT;
        }
        add(new ASTORE(this.ops.size(), opcode, this.line, t));
        break;
    /********
     * CAST *
     ********/
    case Opcodes.D2F:
        t = T.DOUBLE;
        oValue = T.FLOAT;
        // fall through
    case Opcodes.D2I:
        if (t == null) {
            t = T.DOUBLE;
            oValue = T.INT;
        }
        // fall through
    case Opcodes.D2L:
        if (t == null) {
            t = T.DOUBLE;
            oValue = T.LONG;
        }
        // fall through
    case Opcodes.F2D:
        if (t == null) {
            t = T.FLOAT;
            oValue = T.DOUBLE;
        }
        // fall through
    case Opcodes.F2I:
        if (t == null) {
            t = T.FLOAT;
            oValue = T.INT;
        }
        // fall through
    case Opcodes.F2L:
        if (t == null) {
            t = T.FLOAT;
            oValue = T.LONG;
        }
        // fall through
    case Opcodes.I2B:
        if (t == null) {
            t = T.INT;
            oValue = T.BYTE;
        }
        // fall through
    case Opcodes.I2C:
        if (t == null) {
            t = T.INT;
            oValue = T.CHAR;
        }
        // fall through
    case Opcodes.I2D:
        if (t == null) {
            t = T.INT;
            oValue = T.DOUBLE;
        }
        // fall through
    case Opcodes.I2F:
        if (t == null) {
            t = T.INT;
            oValue = T.FLOAT;
        }
        // fall through
    case Opcodes.I2L:
        if (t == null) {
            t = T.INT;
            oValue = T.LONG;
        }
        // fall through
    case Opcodes.I2S:
        if (t == null) {
            t = T.INT;
            oValue = T.SHORT;
        }
        // fall through
    case Opcodes.L2D:
        if (t == null) {
            t = T.LONG;
            oValue = T.DOUBLE;
        }
        // fall through
    case Opcodes.L2F:
        if (t == null) {
            t = T.LONG;
            oValue = T.FLOAT;
        }
        // fall through
    case Opcodes.L2I:
        if (t == null) {
            t = T.LONG;
            oValue = T.INT;
        }
        assert oValue instanceof T;
        add(new CAST(this.ops.size(), opcode, this.line, t, (T) oValue));
        break;
    /*******
     * CMP *
     *******/
    case Opcodes.DCMPG:
        t = T.DOUBLE;
        iValue = CMP.T_G;
        // fall through
    case Opcodes.DCMPL:
        if (t == null) {
            t = T.DOUBLE;
            iValue = CMP.T_L;
        }
        // fall through
    case Opcodes.FCMPG:
        if (t == null) {
            t = T.FLOAT;
            iValue = CMP.T_G;
        }
        // fall through
    case Opcodes.FCMPL:
        if (t == null) {
            t = T.FLOAT;
            iValue = CMP.T_L;
        }
        // fall through
    case Opcodes.LCMP:
        if (t == null) {
            t = T.LONG;
            iValue = CMP.T_0;
        }
        add(new CMP(this.ops.size(), opcode, this.line, t, iValue));
        break;
    /*******
     * DIV *
     *******/
    case Opcodes.DDIV:
        t = T.DOUBLE;
        // fall through
    case Opcodes.FDIV:
        if (t == null) {
            t = T.FLOAT;
        }
        // fall through
    case Opcodes.IDIV:
        if (t == null) {
            t = T.INT;
        }
        // fall through
    case Opcodes.LDIV:
        if (t == null) {
            t = T.LONG;
        }
        add(new DIV(this.ops.size(), opcode, this.line, t));
        break;
    /*******
     * DUP *
     *******/
    case Opcodes.DUP:
        oValue = DUP.Kind.DUP;
        // fall through
    case Opcodes.DUP_X1:
        if (oValue == null) {
            oValue = DUP.Kind.DUP_X1;
        }
        // fall through
    case Opcodes.DUP_X2:
        if (oValue == null) {
            oValue = DUP.Kind.DUP_X2;
        }
        // fall through
    case Opcodes.DUP2:
        if (oValue == null) {
            oValue = DUP.Kind.DUP2;
        }
        // fall through
    case Opcodes.DUP2_X1:
        if (oValue == null) {
            oValue = DUP.Kind.DUP2_X1;
        }
        // fall through
    case Opcodes.DUP2_X2:
        if (oValue == null) {
            oValue = DUP.Kind.DUP2_X2;
        }
        add(new DUP(this.ops.size(), opcode, this.line, (DUP.Kind) oValue));
        break;
    /***********
     * MONITOR *
     ***********/
    case Opcodes.MONITORENTER:
        oValue = MONITOR.Kind.ENTER;
        // fall through
    case Opcodes.MONITOREXIT:
        if (oValue == null) {
            oValue = MONITOR.Kind.EXIT;
        }
        add(new MONITOR(this.ops.size(), opcode, this.line, (MONITOR.Kind) oValue));
        break;
    /*******
     * MUL *
     *******/
    case Opcodes.DMUL:
        t = T.DOUBLE;
        // fall through
    case Opcodes.FMUL:
        if (t == null) {
            t = T.FLOAT;
        }
        // fall through
    case Opcodes.IMUL:
        if (t == null) {
            t = T.INT;
        }
        // fall through
    case Opcodes.LMUL:
        if (t == null) {
            t = T.LONG;
        }
        add(new MUL(this.ops.size(), opcode, this.line, t));
        break;
    /*******
     * NEG *
     *******/
    case Opcodes.DNEG:
        t = T.DOUBLE;
        // fall through
    case Opcodes.FNEG:
        if (t == null) {
            t = T.FLOAT;
        }
        // fall through
    case Opcodes.INEG:
        if (t == null) {
            t = T.INT;
        }
        // fall through
    case Opcodes.LNEG:
        if (t == null) {
            t = T.LONG;
        }
        add(new NEG(this.ops.size(), opcode, this.line, t));
        break;
    /******
     * OR *
     ******/
    case Opcodes.IOR:
        t = T.AINT;
        // fall through
    case Opcodes.LOR:
        if (t == null) {
            t = T.LONG;
        }
        add(new OR(this.ops.size(), opcode, this.line, t));
        break;
    /*******
     * POP *
     *******/
    case Opcodes.POP:
        oValue = POP.Kind.POP;
        // fall through
    case Opcodes.POP2:
        if (oValue == null) {
            oValue = POP.Kind.POP2;
        }
        add(new POP(this.ops.size(), opcode, this.line, (POP.Kind) oValue));
        break;
    /********
     * PUSH *
     ********/
    case Opcodes.ACONST_NULL:
        t = T.REF;
        // fall through
    case Opcodes.DCONST_0:
        if (t == null) {
            oValue = 0D;
            t = T.DOUBLE;
        }
        // fall through
    case Opcodes.FCONST_0:
        if (t == null) {
            oValue = 0F;
            t = T.FLOAT;
        }
        // fall through
    case Opcodes.ICONST_0:
        if (t == null) {
            oValue = 0;
            t = T.getJvmIntT(0);
        }
        // fall through
    case Opcodes.LCONST_0:
        if (t == null) {
            oValue = 0L;
            t = T.LONG;
        }
        // fall through
    case Opcodes.DCONST_1:
        if (t == null) {
            oValue = 1D;
            t = T.DOUBLE;
        }
        // fall through
    case Opcodes.FCONST_1:
        if (t == null) {
            oValue = 1F;
            t = T.FLOAT;
        }
        // fall through
    case Opcodes.ICONST_1:
        if (t == null) {
            oValue = 1;
            t = T.getJvmIntT(1);
        }
        // fall through
    case Opcodes.LCONST_1:
        if (t == null) {
            oValue = 1L;
            t = T.LONG;
        }
        // fall through
    case Opcodes.FCONST_2:
        if (t == null) {
            oValue = 2F;
            t = T.FLOAT;
        }
        // fall through
    case Opcodes.ICONST_2:
        if (t == null) {
            oValue = 2;
            t = T.getJvmIntT(2);
        }
        // fall through
    case Opcodes.ICONST_3:
        if (t == null) {
            oValue = 3;
            t = T.getJvmIntT(3);
        }
        // fall through
    case Opcodes.ICONST_4:
        if (t == null) {
            oValue = 4;
            t = T.getJvmIntT(4);
        }
        // fall through
    case Opcodes.ICONST_5:
        if (t == null) {
            oValue = 5;
            t = T.getJvmIntT(5);
        }
        // fall through
    case Opcodes.ICONST_M1:
        if (t == null) {
            oValue = -1;
            t = T.getJvmIntT(-1);
        }
        add(new PUSH(this.ops.size(), opcode, this.line, t, oValue));
        break;
    /*******
     * REM *
     *******/
    case Opcodes.DREM:
        t = T.DOUBLE;
        // fall through
    case Opcodes.FREM:
        if (t == null) {
            t = T.FLOAT;
        }
        // fall through
    case Opcodes.IREM:
        if (t == null) {
            t = T.INT;
        }
        // fall through
    case Opcodes.LREM:
        if (t == null) {
            t = T.LONG;
        }
        add(new REM(this.ops.size(), opcode, this.line, t));
        break;
    /**********
     * RETURN *
     **********/
    case Opcodes.ARETURN:
        t = T.REF;
        // fall through
    case Opcodes.DRETURN:
        if (t == null) {
            t = T.DOUBLE;
        }
        // fall through
    case Opcodes.FRETURN:
        if (t == null) {
            t = T.FLOAT;
        }
        // fall through
    case Opcodes.IRETURN:
        if (t == null) {
            t = T.AINT;
        }
        // fall through
    case Opcodes.LRETURN:
        if (t == null) {
            t = T.LONG;
        }
        // fall through
    case Opcodes.RETURN:
        if (t == null) {
            t = T.VOID;
        }
        add(new RETURN(this.ops.size(), opcode, this.line, t));
        break;
    /*******
     * SHL *
     *******/
    case Opcodes.ISHL:
        t = T.INT;
        // fall through
    case Opcodes.LSHL:
        if (t == null) {
            t = T.LONG;
        }
        add(new SHL(this.ops.size(), opcode, this.line, t, T.INT));
        break;
    /*******
     * SHR *
     *******/
    case Opcodes.ISHR:
    case Opcodes.IUSHR:
        t = T.INT;
        // fall through
    case Opcodes.LSHR:
    case Opcodes.LUSHR:
        if (t == null) {
            t = T.LONG;
        }
        add(new SHR(this.ops.size(), opcode, this.line, t, T.INT,
                opcode == Opcodes.IUSHR || opcode == Opcodes.LUSHR));
        break;
    /*******
     * SUB *
     *******/
    case Opcodes.DSUB:
        t = T.DOUBLE;
        // fall through
    case Opcodes.FSUB:
        if (t == null) {
            t = T.FLOAT;
        }
        // fall through
    case Opcodes.ISUB:
        if (t == null) {
            t = T.INT;
        }
        // fall through
    case Opcodes.LSUB:
        if (t == null) {
            t = T.LONG;
        }
        add(new SUB(this.ops.size(), opcode, this.line, t));
        break;
    /********
     * SWAP *
     ********/
    case Opcodes.SWAP:
        add(new SWAP(this.ops.size(), opcode, this.line));
        break;
    /*********
     * THROW *
     *********/
    case Opcodes.ATHROW:
        add(new THROW(this.ops.size(), opcode, this.line));
        break;
    /*******
     * XOR *
     *******/
    case Opcodes.IXOR:
        t = T.AINT;
        // fall through
    case Opcodes.LXOR: {
        if (t == null) {
            t = T.LONG;
        }
        add(new XOR(this.ops.size(), opcode, this.line, t));
        break;
    }
    default:
        log.warn(getM() + ": Unknown insn opcode '" + opcode + "'!");
    }
}

From source file:org.eclipse.objectteams.otredyn.bytecode.asm.AbstractTransformableClassNode.java

License:Open Source License

/**
 * Returns the instructions, that are needed to convert 
 * a return value of the type {@link Object} to the real type
 * @param returnType the real type//from  w w w .  j a v a 2  s  . c  om
 * @return
 */
protected InsnList getUnboxingInstructionsForReturnValue(Type returnType) {
    InsnList instructions = new InsnList();
    switch (returnType.getSort()) {
    case Type.VOID:
        instructions.add(new InsnNode(Opcodes.POP));
        instructions.add(new InsnNode(Opcodes.RETURN));
        break;
    case Type.ARRAY: // fallthrough
    case Type.OBJECT:
        instructions.add(new TypeInsnNode(Opcodes.CHECKCAST, returnType.getInternalName()));
        instructions.add(new InsnNode(Opcodes.ARETURN));
        break;
    default:
        String objectType = AsmTypeHelper.getObjectType(returnType);
        instructions.add(new TypeInsnNode(Opcodes.CHECKCAST, objectType));
        instructions.add(AsmTypeHelper.getUnboxingInstructionForType(returnType, objectType));
        instructions.add(new InsnNode(returnType.getOpcode(Opcodes.IRETURN)));
    }
    return instructions;
}

From source file:org.eclipse.objectteams.otredyn.bytecode.asm.AbstractTransformableClassNode.java

License:Open Source License

/**
 * Replace all return statements in the given instructions with new 
 * statements that convert the real return value to {@link Object}
 * and return this new {@link Object}// w  w w. j  a  va 2 s . c  o m
 * 
 * @param instructions
 * @param returnType
 */
protected void replaceReturn(InsnList instructions, Type returnType) {
    if (returnType.getSort() != Type.OBJECT && returnType.getSort() != Type.ARRAY
            && returnType.getSort() != Type.VOID) {
        ListIterator<AbstractInsnNode> orgMethodIter = instructions.iterator();
        while (orgMethodIter.hasNext()) {
            AbstractInsnNode orgMethodNode = orgMethodIter.next();
            if (orgMethodNode.getOpcode() == returnType.getOpcode(Opcodes.IRETURN)) {
                instructions.insertBefore(orgMethodNode, AsmTypeHelper.getBoxingInstructionForType(returnType));
                instructions.insertBefore(orgMethodNode, new InsnNode(Opcodes.ARETURN));
                instructions.remove(orgMethodNode);
            }
        }
    } else if (returnType.getSort() == Type.VOID) {
        ListIterator<AbstractInsnNode> orgMethodIter = instructions.iterator();
        while (orgMethodIter.hasNext()) {
            AbstractInsnNode orgMethodNode = orgMethodIter.next();
            if (orgMethodNode.getOpcode() == Opcodes.RETURN) {
                instructions.insertBefore(orgMethodNode, new InsnNode(Opcodes.ACONST_NULL));
                instructions.insertBefore(orgMethodNode, new InsnNode(Opcodes.ARETURN));
                instructions.remove(orgMethodNode);
            }
        }
    }
}

From source file:org.eclipse.objectteams.otredyn.bytecode.asm.AddEmptyMethodAdapter.java

License:Open Source License

@Override
public void visitEnd() {
    MethodVisitor mv = cv.visitMethod(access, name, desc, signature, exceptions);
    if ((this.access & Opcodes.ACC_ABSTRACT) != 0) {
        mv.visitEnd();/*ww w  . ja v  a  2  s . c  om*/
        return;
    }
    mv.visitCode();
    boolean needConstValue = true;
    if (superToCall != null) {
        needConstValue = false;
        boolean isStatic = (this.access & Opcodes.ACC_STATIC) != 0;
        int firstArgIndex = isStatic ? 0 : 1;
        if (!isStatic)
            mv.visitVarInsn(Opcodes.ALOAD, 0); // "this"
        Type[] args = Type.getArgumentTypes(desc);
        for (int i = 0, slot = firstArgIndex; i < args.length; slot += args[i++].getSize())
            mv.visitVarInsn(args[i].getOpcode(Opcodes.ILOAD), slot);
        mv.visitMethodInsn(Opcodes.INVOKESPECIAL, superToCall, name, desc, false);
    }
    Type returnType = Type.getReturnType(this.desc);
    switch (returnType.getSort()) {
    case Type.VOID:
        mv.visitInsn(Opcodes.RETURN);
        break;
    case Type.INT:
    case Type.BOOLEAN:
    case Type.CHAR:
    case Type.BYTE:
    case Type.SHORT:
        if (needConstValue)
            mv.visitInsn(Opcodes.ICONST_1);
        mv.visitInsn(Opcodes.IRETURN);
        break;
    case Type.FLOAT:
        if (needConstValue)
            mv.visitInsn(Opcodes.FCONST_1);
        mv.visitInsn(Opcodes.FRETURN);
        break;
    case Type.LONG:
        if (needConstValue)
            mv.visitInsn(Opcodes.LCONST_1);
        mv.visitInsn(Opcodes.LRETURN);
        break;
    case Type.DOUBLE:
    case Type.OBJECT:
    case Type.ARRAY:
        if (needConstValue)
            mv.visitInsn(Opcodes.ACONST_NULL);
        mv.visitInsn(Opcodes.ARETURN);
        break;
    }
    mv.visitMaxs(1, maxLocals);
    mv.visitEnd();
}

From source file:org.eclipse.objectteams.otredyn.bytecode.asm.CreateCallAllBindingsCallInOrgMethod.java

License:Open Source License

protected InsnList getReturnInsn(Type returnType) {
    InsnList instructions = new InsnList();
    switch (returnType.getSort()) {
    case Type.VOID:
        instructions.add(new InsnNode(Opcodes.RETURN));
        break;//from   w  w w. ja va  2  s  .  co  m
    case Type.ARRAY:
    case Type.OBJECT:
        instructions.add(new InsnNode(Opcodes.ACONST_NULL));
        instructions.add(new InsnNode(Opcodes.ARETURN));
        break;
    case Type.BOOLEAN:
    case Type.CHAR:
    case Type.BYTE:
    case Type.INT:
    case Type.SHORT:
    case Type.LONG:
        instructions.add(new InsnNode(Opcodes.ICONST_0));
        instructions.add(new InsnNode(Opcodes.IRETURN));
        break;
    case Type.DOUBLE:
        instructions.add(new InsnNode(Opcodes.DCONST_0));
        instructions.add(new InsnNode(Opcodes.DRETURN));
        break;
    case Type.FLOAT:
        instructions.add(new InsnNode(Opcodes.FCONST_0));
        instructions.add(new InsnNode(Opcodes.FRETURN));
        break;
    }
    return instructions;
}

From source file:org.evosuite.graphs.cfg.ASMWrapper.java

License:Open Source License

/**
 * <p>//from ww  w. j a va  2  s.  c  o  m
 * isReturn
 * </p>
 * 
 * @return a boolean.
 */
public boolean isReturn() {
    switch (asmNode.getOpcode()) {
    case Opcodes.RETURN:
    case Opcodes.ARETURN:
    case Opcodes.IRETURN:
    case Opcodes.LRETURN:
    case Opcodes.DRETURN:
    case Opcodes.FRETURN:
        return true;
    default:
        return false;
    }
}

From source file:org.evosuite.instrumentation.BooleanTestabilityTransformation.java

License:Open Source License

/**
 * This helper function determines whether the boolean on the stack at the
 * current position will be stored in a Boolean variable
 * //from www.ja va 2s . c  o  m
 * @param position
 * @param mn
 * @return
 */
public boolean isBooleanAssignment(AbstractInsnNode position, MethodNode mn) {
    AbstractInsnNode node = position.getNext();
    logger.info("Checking for ISTORE after boolean");
    boolean done = false;
    while (!done) {

        if (node.getOpcode() == Opcodes.PUTFIELD || node.getOpcode() == Opcodes.PUTSTATIC) {
            // TODO: Check whether field is static
            logger.info("Checking field assignment");
            FieldInsnNode fn = (FieldInsnNode) node;
            if (Type.getType(DescriptorMapping.getInstance().getFieldDesc(fn.owner, fn.name,
                    fn.desc)) == Type.BOOLEAN_TYPE) {
                return true;
            } else {
                return false;
            }
        } else if (node.getOpcode() == Opcodes.ISTORE) {
            logger.info("Found ISTORE after boolean");

            VarInsnNode vn = (VarInsnNode) node;
            // TODO: Check whether variable at this position is a boolean
            if (isBooleanVariable(vn.var, mn)) {
                logger.info("Assigning boolean to variable ");
                return true;
            } else {
                logger.info("Variable is not a bool");
                return false;
            }
        } else if (node.getOpcode() == Opcodes.IRETURN) {
            logger.info("Checking return value of method {}.{}", cn.name, mn.name);
            if (DescriptorMapping.getInstance().isTransformedOrBooleanMethod(cn.name, mn.name, mn.desc)) {
                logger.info("Method returns a bool");
                return true;
            } else {
                logger.info("Method does not return a bool");
                return false;
            }
        } else if (node.getOpcode() == Opcodes.BASTORE) {
            // We remove all bytes, so BASTORE is only used for booleans
            AbstractInsnNode start = position.getNext();
            boolean reassignment = false;
            while (start != node) {
                if (node instanceof InsnNode) {
                    reassignment = true;
                }
                start = start.getNext();
            }
            logger.info("Possible assignment to array?");
            if (reassignment)
                return false;
            else
                return true;

        } else if (node instanceof MethodInsnNode) {
            // if it is a boolean parameter of a converted method, then it needs to be converted
            // Problem: How do we know which parameter it represents?
            MethodInsnNode methodNode = (MethodInsnNode) node;
            String desc = DescriptorMapping.getInstance().getMethodDesc(methodNode.owner, methodNode.name,
                    methodNode.desc);
            Type[] types = Type.getArgumentTypes(desc);
            if (types.length > 0 && types[types.length - 1] == Type.BOOLEAN_TYPE) {
                return true;
            } else {
                return false;
            }

        } else if (node.getOpcode() == Opcodes.GOTO || node.getOpcode() == Opcodes.ICONST_0
                || node.getOpcode() == Opcodes.ICONST_1 || node.getOpcode() == -1) {
            logger.info("Continuing search");

            // continue search
        } else if (!(node instanceof LineNumberNode || node instanceof FrameNode)) {
            logger.info("Search ended with opcode {}", node.getOpcode());

            return false;
        }
        if (node != mn.instructions.getLast())
            node = node.getNext();
        else
            done = true;
    }

    return false;
}

From source file:org.evosuite.instrumentation.coverage.LCSAJsInstrumentation.java

License:Open Source License

/** {@inheritDoc} */
@SuppressWarnings("unchecked")
//using external lib
@Override/*  ww  w.j a v a2s  . c om*/
public void analyze(ClassLoader classLoader, MethodNode mn, String className, String methodName, int access) {

    Queue<LCSAJ> lcsaj_queue = new LinkedList<LCSAJ>();
    HashSet<Integer> targets_reached = new HashSet<Integer>();

    AbstractInsnNode start = mn.instructions.getFirst();
    int startID = 0;

    // TODO: This should replace the hack below
    if (methodName.startsWith("<init>")) {
        Iterator<AbstractInsnNode> j = mn.instructions.iterator();
        boolean constructorInvoked = false;
        while (j.hasNext()) {
            AbstractInsnNode in = j.next();
            startID++;
            if (!constructorInvoked) {
                if (in.getOpcode() == Opcodes.INVOKESPECIAL) {
                    MethodInsnNode cn = (MethodInsnNode) in;
                    Collection<String> superClasses = DependencyAnalysis.getInheritanceTree()
                            .getSuperclasses(className);
                    superClasses.add(className);
                    String classNameWithDots = ResourceList.getClassNameFromResourcePath(cn.owner);
                    if (superClasses.contains(classNameWithDots)) {
                        constructorInvoked = true;
                        break;
                    }
                } else {
                    continue;
                }
            }
        }
    }

    /*
    if (methodName.startsWith("<init>")) {
       if (mn.instructions.size() >= 4) {
    start = mn.instructions.get(4);
    startID = 4;
       }
    }
    */

    LCSAJ a = new LCSAJ(className, methodName, BytecodeInstructionPool.getInstance(classLoader)
            .getInstruction(className, methodName, startID, start));
    lcsaj_queue.add(a);

    targets_reached.add(0);

    ArrayList<TryCatchBlockNode> tc_blocks = (ArrayList<TryCatchBlockNode>) mn.tryCatchBlocks;

    for (TryCatchBlockNode t : tc_blocks) {
        LCSAJ b = new LCSAJ(className, methodName, BytecodeInstructionPool.getInstance(classLoader)
                .getInstruction(className, methodName, mn.instructions.indexOf(t.handler), t.handler));
        lcsaj_queue.add(b);
    }

    while (!lcsaj_queue.isEmpty()) {

        LCSAJ currentLCSAJ = lcsaj_queue.poll();
        int position = mn.instructions.indexOf(currentLCSAJ.getLastNodeAccessed());
        // go to next bytecode instruction
        position++;

        if (position >= mn.instructions.size()) {
            // New LCSAJ for current + return
            LCSAJPool.add_lcsaj(className, methodName, currentLCSAJ);
            continue;
        }

        AbstractInsnNode next = mn.instructions.get(position);
        currentLCSAJ.lookupInstruction(position, BytecodeInstructionPool.getInstance(classLoader)
                .getInstruction(className, methodName, position, next));

        if (next instanceof JumpInsnNode) {

            JumpInsnNode jump = (JumpInsnNode) next;
            // New LCSAJ for current + jump to target
            LCSAJPool.add_lcsaj(className, methodName, currentLCSAJ);
            LabelNode target = jump.label;
            int targetPosition = mn.instructions.indexOf(target);

            if (jump.getOpcode() != Opcodes.GOTO) {

                LCSAJ copy = new LCSAJ(currentLCSAJ);
                lcsaj_queue.add(copy);

            }

            if (!targets_reached.contains(targetPosition)) {
                LCSAJ c = new LCSAJ(className, methodName, BytecodeInstructionPool.getInstance(classLoader)
                        .getInstruction(className, methodName, targetPosition, target));
                lcsaj_queue.add(c);

                targets_reached.add(targetPosition);
            }

        } else if (next instanceof TableSwitchInsnNode) {

            TableSwitchInsnNode tswitch = (TableSwitchInsnNode) next;
            List<LabelNode> allTargets = tswitch.labels;

            for (LabelNode target : allTargets) {

                int targetPosition = mn.instructions.indexOf(target);

                if (!targets_reached.contains(targetPosition)) {

                    LCSAJ b = new LCSAJ(className, methodName, BytecodeInstructionPool.getInstance(classLoader)
                            .getInstruction(className, methodName, targetPosition, target));
                    lcsaj_queue.add(b);

                    targets_reached.add(targetPosition);
                }
            }

        } else if (next instanceof InsnNode) {
            InsnNode insn = (InsnNode) next;
            // New LCSAJ for current + throw / return
            if (insn.getOpcode() == Opcodes.ATHROW || insn.getOpcode() == Opcodes.RETURN
                    || insn.getOpcode() == Opcodes.ARETURN || insn.getOpcode() == Opcodes.IRETURN
                    || insn.getOpcode() == Opcodes.DRETURN || insn.getOpcode() == Opcodes.LRETURN
                    || insn.getOpcode() == Opcodes.FRETURN) {

                LCSAJPool.add_lcsaj(className, methodName, currentLCSAJ);
            } else
                lcsaj_queue.add(currentLCSAJ);
        } else
            lcsaj_queue.add(currentLCSAJ);
    }

    if (Properties.STRATEGY != Strategy.EVOSUITE)
        addInstrumentation(classLoader, mn, className, methodName);

    //      if (Properties.WRITE_CFG)
    //         for (LCSAJ l : LCSAJPool.getLCSAJs(className, methodName)) {
    //            LCSAJGraph graph = new LCSAJGraph(l, false);
    //            String graphDestination = "evosuite-graphs/LCSAJGraphs/" + className
    //                    + "/" + methodName;
    //            File dir = new File(graphDestination);
    //            if (dir.mkdirs())
    //               graph.generate(new File(graphDestination + "/LCSAJGraph no: "
    //                       + l.getID() + ".dot"));
    //            else if (dir.exists())
    //               graph.generate(new File(graphDestination + "/LCSAJGraph no: "
    //                       + l.getID() + ".dot"));
    //         }
}