Java Code Examples for org.objectweb.asm.Opcodes#ICONST_4

The following examples show how to use org.objectweb.asm.Opcodes#ICONST_4 . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: OpcodeFormatting.java    From Cafebabe with GNU General Public License v3.0 6 votes vote down vote up 
/**
 * Gets the integer value of a given opcode.
 * 
 * @param opcode
 * @return
 */
public static int getIntValue(int opcode) {
	if (opcode == Opcodes.ICONST_0) {
		return 0;
	} else if (opcode == Opcodes.ICONST_1) {
		return 1;
	} else if (opcode == Opcodes.ICONST_2) {
		return 2;
	} else if (opcode == Opcodes.ICONST_3) {
		return 3;
	} else if (opcode == Opcodes.ICONST_4) {
		return 4;
	} else if (opcode == Opcodes.ICONST_5) {
		return 5;
	} else {
		return -1;
	}
}
Example 2
Source File: OpcodeFormatting.java    From Cafebabe with GNU General Public License v3.0 6 votes vote down vote up 
/**
 * Given an integer, returns an InsnNode that will properly represent the int.
 * 
 * @param i
 * @return
 */
public static AbstractInsnNode toInt(int i) {
	switch (i) {
	case -1:
		return new InsnNode(Opcodes.ICONST_M1);
	case 0:
		return new InsnNode(Opcodes.ICONST_0);
	case 1:
		return new InsnNode(Opcodes.ICONST_1);
	case 2:
		return new InsnNode(Opcodes.ICONST_2);
	case 3:
		return new InsnNode(Opcodes.ICONST_3);
	case 4:
		return new InsnNode(Opcodes.ICONST_4);
	case 5:
		return new InsnNode(Opcodes.ICONST_5);
	}
	if (i > -129 && i < 128) {
		return new IntInsnNode(Opcodes.BIPUSH, i);
	}
	return new LdcInsnNode(i);
}
Example 3
Source File: CodeGenUtils.java    From Concurnas with MIT License 6 votes vote down vote up 
static void intOpcode(MethodVisitor mv, int input)
{
	if(input ==-1){
		mv.visitInsn(Opcodes.ICONST_M1);
	} else if(input >= 0 && input <= 5) {
		int res = Opcodes.ICONST_5;
		switch(input)
		{
			case 0: res =  Opcodes.ICONST_0; break;
			case 1: res =  Opcodes.ICONST_1; break;
			case 2: res =  Opcodes.ICONST_2; break;
			case 3: res =  Opcodes.ICONST_3; break;
			case 4: res =  Opcodes.ICONST_4; break;
		}
		mv.visitInsn(res);
	} else if( -128 <= input && input <= 127){//8 bit
		mv.visitIntInsn(Opcodes.BIPUSH, input);
	} else if( -32768 <= input && input <= 32767){//16 bit
		mv.visitIntInsn(Opcodes.SIPUSH, input);
	} else{//32 bit - ldc
		mv.visitLdcInsn(new Integer(input));
	}
}
Example 4
Source File: AsmUtil.java    From Bats with Apache License 2.0 6 votes vote down vote up 
/**
 * Determine if the given opcode is a load of a constant (xCONST_y).
 *
 * @param opcode the opcode
 * @return true if the opcode is one of the constant loading ones, false otherwise
 */
public static boolean isXconst(final int opcode) {
  switch(opcode) {
  case Opcodes.ICONST_0:
  case Opcodes.ICONST_1:
  case Opcodes.ICONST_2:
  case Opcodes.ICONST_3:
  case Opcodes.ICONST_4:
  case Opcodes.ICONST_5:
  case Opcodes.ICONST_M1:
  case Opcodes.DCONST_0:
  case Opcodes.DCONST_1:
  case Opcodes.FCONST_0:
  case Opcodes.FCONST_1:
  case Opcodes.LCONST_0:
  case Opcodes.LCONST_1:
    return true;
  }

  return false;
}
Example 5
Source File: OpUtils.java    From zelixkiller with GNU General Public License v3.0 6 votes vote down vote up 
/**
 * Gets the integer value of a given opcode.
 * 
 * @param opcode
 * @return
 */
public static int getIntValue(int opcode) {
	if (opcode == Opcodes.ICONST_0) {
		return 0;
	} else if (opcode == Opcodes.ICONST_1) {
		return 1;
	} else if (opcode == Opcodes.ICONST_2) {
		return 2;
	} else if (opcode == Opcodes.ICONST_3) {
		return 3;
	} else if (opcode == Opcodes.ICONST_4) {
		return 4;
	} else if (opcode == Opcodes.ICONST_5) {
		return 5;
	} else {
		return -1;
	}
}
Example 6
Source File: OpUtils.java    From zelixkiller with GNU General Public License v3.0 6 votes vote down vote up 
/**
 * Given an integer, returns an InsnNode that will properly represent the
 * int.
 * 
 * @param i
 * @return
 */
public static AbstractInsnNode toInt(int i) {
	switch (i) {
	case -1:
		return new InsnNode(Opcodes.ICONST_M1);
	case 0:
		return new InsnNode(Opcodes.ICONST_0);
	case 1:
		return new InsnNode(Opcodes.ICONST_1);
	case 2:
		return new InsnNode(Opcodes.ICONST_2);
	case 3:
		return new InsnNode(Opcodes.ICONST_3);
	case 4:
		return new InsnNode(Opcodes.ICONST_4);
	case 5:
		return new InsnNode(Opcodes.ICONST_5);
	}
	if (i > -129 && i < 128) {
		return new IntInsnNode(Opcodes.BIPUSH, i);
	}
	return new LdcInsnNode(i);
}
Example 7
Source File: BasicInstruction.java    From CodenameOne with GNU General Public License v2.0 6 votes vote down vote up 
@Override
public boolean isConstant() {
    switch (opcode) {
        case Opcodes.ACONST_NULL:
        case Opcodes.ICONST_0:
        case Opcodes.ICONST_1:
        case Opcodes.ICONST_2:
        case Opcodes.ICONST_3:
        case Opcodes.ICONST_4:
        case Opcodes.ICONST_5:
        case Opcodes.ICONST_M1:
        case Opcodes.FCONST_0:
        case Opcodes.FCONST_1:
        case Opcodes.FCONST_2:
        case Opcodes.DCONST_0:
        case Opcodes.DCONST_1:
        case Opcodes.LCONST_0:
        case Opcodes.LCONST_1:
        case Opcodes.LDC:
            return true;
    }
    return super.isConstant();
}
Example 8
Source File: OpUtils.java    From JByteMod-Beta with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Given an integer, returns an InsnNode that will properly represent the int.
 * 
 * @param i
 * @return
 */
public static AbstractInsnNode toInt(int i) {
  switch (i) {
  case -1:
    return new InsnNode(Opcodes.ICONST_M1);
  case 0:
    return new InsnNode(Opcodes.ICONST_0);
  case 1:
    return new InsnNode(Opcodes.ICONST_1);
  case 2:
    return new InsnNode(Opcodes.ICONST_2);
  case 3:
    return new InsnNode(Opcodes.ICONST_3);
  case 4:
    return new InsnNode(Opcodes.ICONST_4);
  case 5:
    return new InsnNode(Opcodes.ICONST_5);
  }
  if (i > -129 && i < 128) {
    return new IntInsnNode(Opcodes.BIPUSH, i);
  }
  return new LdcInsnNode(i);
}
Example 9
Source File: LoadIntStep.java    From deobfuscator with Apache License 2.0 6 votes vote down vote up 
public LoadIntStep() {
    super((a) -> 
    {
    	if(!(a instanceof LdcInsnNode))
    		return true;
    	return ((LdcInsnNode)a).cst instanceof Integer;
    },Opcodes.ICONST_M1,
            Opcodes.ICONST_0,
            Opcodes.ICONST_1,
            Opcodes.ICONST_2,
            Opcodes.ICONST_3,
            Opcodes.ICONST_4,
            Opcodes.ICONST_5,
            Opcodes.LDC,
            Opcodes.BIPUSH,
            Opcodes.SIPUSH
    );
}
Example 10
Source File: Utils.java    From deobfuscator with Apache License 2.0 6 votes vote down vote up 
public static AbstractInsnNode getNumberInsn(int num) {
    switch (num) {
    	case -1:
    		return new InsnNode(Opcodes.ICONST_M1);
        case 0:
            return new InsnNode(Opcodes.ICONST_0);
        case 1:
            return new InsnNode(Opcodes.ICONST_1);
        case 2:
            return new InsnNode(Opcodes.ICONST_2);
        case 3:
            return new InsnNode(Opcodes.ICONST_3);
        case 4:
            return new InsnNode(Opcodes.ICONST_4);
        case 5:
            return new InsnNode(Opcodes.ICONST_5);
        default:
        	if(num >= -128 && num <= 127)
        		return new IntInsnNode(Opcodes.BIPUSH, num);
        	else if(num >= -32768 && num <= 32767)
        		return new IntInsnNode(Opcodes.SIPUSH, num);
        	else
        		return new LdcInsnNode(num);
    }
}
Example 11
Source File: TreeInstructions.java    From instrumentation with Apache License 2.0 6 votes vote down vote up 
public static AbstractInsnNode getPushInstruction(int value) {

        if (value == -1) {
            return new InsnNode(Opcodes.ICONST_M1);
        } else if (value == 0) {
            return new InsnNode(Opcodes.ICONST_0);
        } else if (value == 1) {
            return new InsnNode(Opcodes.ICONST_1);
        } else if (value == 2) {
            return new InsnNode(Opcodes.ICONST_2);
        } else if (value == 3) {
            return new InsnNode(Opcodes.ICONST_3);
        } else if (value == 4) {
            return new InsnNode(Opcodes.ICONST_4);
        } else if (value == 5) {
            return new InsnNode(Opcodes.ICONST_5);
        } else if ((value >= -128) && (value <= 127)) {
            return new IntInsnNode(Opcodes.BIPUSH, value);
        } else if ((value >= -32768) && (value <= 32767)) {
            return new IntInsnNode(Opcodes.SIPUSH, value);
        } else {
            return new LdcInsnNode(value);
        }
    }
Example 12
Source File: InlineConstantMutator.java    From pitest with Apache License 2.0 5 votes vote down vote up 
/**
 * Translates the opcode to a number (inline constant) if possible or
 * returns <code>null</code> if the opcode cannot be translated.
 *
 * @param opcode
 *          that might represent an inline constant.
 * @return the value of the inline constant represented by opcode or
 *         <code>null</code> if the opcode does not represent a
 *         number/constant.
 */
private Number translateToNumber(final int opcode) {
  switch (opcode) {
  case Opcodes.ICONST_M1:
    return Integer.valueOf(-1);
  case Opcodes.ICONST_0:
    return Integer.valueOf(0);
  case Opcodes.ICONST_1:
    return Integer.valueOf(1);
  case Opcodes.ICONST_2:
    return Integer.valueOf(2);
  case Opcodes.ICONST_3:
    return Integer.valueOf(3);
  case Opcodes.ICONST_4:
    return Integer.valueOf(4);
  case Opcodes.ICONST_5:
    return Integer.valueOf(5);
  case Opcodes.LCONST_0:
    return Long.valueOf(0L);
  case Opcodes.LCONST_1:
    return Long.valueOf(1L);
  case Opcodes.FCONST_0:
    return Float.valueOf(0F);
  case Opcodes.FCONST_1:
    return Float.valueOf(1F);
  case Opcodes.FCONST_2:
    return Float.valueOf(2F);
  case Opcodes.DCONST_0:
    return Double.valueOf(0D);
  case Opcodes.DCONST_1:
    return Double.valueOf(1D);
  default:
    return null;
  }
}
Example 13
Source File: InlineConstantMutator.java    From pitest with Apache License 2.0 5 votes vote down vote up 
private void translateToByteCode(final Integer constant) {
  switch (constant) {
  case -1:
    super.visitInsn(Opcodes.ICONST_M1);
    break;
  case 0:
    super.visitInsn(Opcodes.ICONST_0);
    break;
  case 1:
    super.visitInsn(Opcodes.ICONST_1);
    break;
  case 2:
    super.visitInsn(Opcodes.ICONST_2);
    break;
  case 3:
    super.visitInsn(Opcodes.ICONST_3);
    break;
  case 4:
    super.visitInsn(Opcodes.ICONST_4);
    break;
  case 5:
    super.visitInsn(Opcodes.ICONST_5);
    break;
  default:
    super.visitLdcInsn(constant);
    break;
  }
}
Example 14
Source File: AbstractCRCRVisitor.java    From pitest with Apache License 2.0 5 votes vote down vote up 
Number translateToNumber(final int opcode) {
    switch (opcode) {
        case Opcodes.ICONST_M1:
            return Integer.valueOf(-1);
        case Opcodes.ICONST_0:
            return Integer.valueOf(0);
        case Opcodes.ICONST_1:
            return Integer.valueOf(1);
        case Opcodes.ICONST_2:
            return Integer.valueOf(2);
        case Opcodes.ICONST_3:
            return Integer.valueOf(3);
        case Opcodes.ICONST_4:
            return Integer.valueOf(4);
        case Opcodes.ICONST_5:
            return Integer.valueOf(5);
        case Opcodes.LCONST_0:
            return Long.valueOf(0L);
        case Opcodes.LCONST_1:
            return Long.valueOf(1L);
        case Opcodes.FCONST_0:
            return Float.valueOf(0F);
        case Opcodes.FCONST_1:
            return Float.valueOf(1F);
        case Opcodes.FCONST_2:
            return Float.valueOf(2F);
        case Opcodes.DCONST_0:
            return Double.valueOf(0D);
        case Opcodes.DCONST_1:
            return Double.valueOf(1D);
        default:
            return null;
    }
}
Example 15
Source File: AbstractCRCRVisitor.java    From pitest with Apache License 2.0 5 votes vote down vote up 
void translateToByteCode(final Integer constant) {
    switch (constant) {
        case -1:
            super.visitInsn(Opcodes.ICONST_M1);
            break;
        case 0:
            super.visitInsn(Opcodes.ICONST_0);
            break;
        case 1:
            super.visitInsn(Opcodes.ICONST_1);
            break;
        case 2:
            super.visitInsn(Opcodes.ICONST_2);
            break;
        case 3:
            super.visitInsn(Opcodes.ICONST_3);
            break;
        case 4:
            super.visitInsn(Opcodes.ICONST_4);
            break;
        case 5:
            super.visitInsn(Opcodes.ICONST_5);
            break;
        default:
            super.visitLdcInsn(constant);
            break;
    }
}
Example 16
Source File: BlockBuildingMethodVisitorTest.java    From AVM with MIT License 5 votes vote down vote up 
@Test
public void test_checkBranch() throws Exception {
    List<BasicBlock> hashCodeBlocks = METHOD_BLOCKS.get("checkBranch(I)I");
    int[][] expectedHashCodeBlocks = new int[][]{
            {Opcodes.ICONST_5, Opcodes.ISTORE, Opcodes.ILOAD, Opcodes.BIPUSH, Opcodes.IF_ICMPLE},
            {Opcodes.BIPUSH, Opcodes.ISTORE, Opcodes.GOTO},
            {Opcodes.ICONST_4, Opcodes.ISTORE},
            {Opcodes.ILOAD, Opcodes.IRETURN},
    };
    boolean didMatch = compareBlocks(expectedHashCodeBlocks, hashCodeBlocks);
    Assert.assertTrue(didMatch);
}
Example 17
Source File: Utils.java    From Concurnas with MIT License 5 votes vote down vote up 
public static void intOpcode(BytecodeOutputter mv, int input)
{
	if(input ==-1)
	{
		mv.visitInsn(Opcodes.ICONST_M1);
	}
	else if(input >= 0 && input <= 5)
	{
		int res = Opcodes.ICONST_5;
		switch(input)
		{
			case 0: res =  Opcodes.ICONST_0; break;
			case 1: res =  Opcodes.ICONST_1; break;
			case 2: res =  Opcodes.ICONST_2; break;
			case 3: res =  Opcodes.ICONST_3; break;
			case 4: res =  Opcodes.ICONST_4; break;
		}
		mv.visitInsn(res);
	}
	else if( -128 <= input && input <= 127)
	{//8 bit
		mv.visitIntInsn(Opcodes.BIPUSH, input);
	}
	else if( -32768 <= input && input <= 32767)
	{//16 bit
		mv.visitIntInsn(Opcodes.SIPUSH, input);
	}
	else
	{//32 bit - ldc
		mv.visitLdcInsn(new Integer(input));
	}
}
Example 18
Source File: BytecodeGenUtils.java    From Concurnas with MIT License 5 votes vote down vote up 
public static void intOpcode(MethodVisitor mv, int input)
{//TODO: nasty copy paste
	if(input ==-1)
	{
		mv.visitInsn(Opcodes.ICONST_M1);
	}
	else if(input > -1 && input <= 5)
	{
		int res = Opcodes.ICONST_5;
		switch(input)
		{
			case 0: res =  Opcodes.ICONST_0; break;
			case 1: res =  Opcodes.ICONST_1; break;
			case 2: res =  Opcodes.ICONST_2; break;
			case 3: res =  Opcodes.ICONST_3; break;
			case 4: res =  Opcodes.ICONST_4; break;
		}
		mv.visitInsn(res);
	}
	else if( -128 <= input && input <= 127)
	{//8 bit
		mv.visitIntInsn(Opcodes.BIPUSH, input);
	}
	else if( -32768 <= input && input <= 32767)
	{//16 bit
		mv.visitIntInsn(Opcodes.SIPUSH, input);
	}
	else
	{//32 bit - ldc
		mv.visitLdcInsn(new Integer(input));
	}
}
Example 19
Source File: LambdaDesugaring.java    From bazel with Apache License 2.0 4 votes vote down vote up 
/**
 * Returns whether a given instruction can be used to push argument of {@code type} on stack.
 */
private /* static */ boolean isPushForType(AbstractInsnNode insn, Type type) {
  int opcode = insn.getOpcode();
  if (opcode == type.getOpcode(Opcodes.ILOAD)) {
    return true;
  }
  // b/62060793: AsyncAwait rewrites bytecode to convert java methods into state machine with
  // support of lambdas. Constant zero values are pushed on stack for all yet uninitialized
  // local variables. And SIPUSH instruction is used to advance an internal state of a state
  // machine.
  switch (type.getSort()) {
    case Type.BOOLEAN:
      return opcode == Opcodes.ICONST_0 || opcode == Opcodes.ICONST_1;

    case Type.BYTE:
    case Type.CHAR:
    case Type.SHORT:
    case Type.INT:
      return opcode == Opcodes.SIPUSH
          || opcode == Opcodes.ICONST_0
          || opcode == Opcodes.ICONST_1
          || opcode == Opcodes.ICONST_2
          || opcode == Opcodes.ICONST_3
          || opcode == Opcodes.ICONST_4
          || opcode == Opcodes.ICONST_5
          || opcode == Opcodes.ICONST_M1;

    case Type.LONG:
      return opcode == Opcodes.LCONST_0 || opcode == Opcodes.LCONST_1;

    case Type.FLOAT:
      return opcode == Opcodes.FCONST_0
          || opcode == Opcodes.FCONST_1
          || opcode == Opcodes.FCONST_2;

    case Type.DOUBLE:
      return opcode == Opcodes.DCONST_0 || opcode == Opcodes.DCONST_1;

    case Type.OBJECT:
    case Type.ARRAY:
      return opcode == Opcodes.ACONST_NULL;

    default:
      // Support for BIPUSH and LDC* opcodes is not implemented as there is no known use case.
      return false;
  }
}
Example 20
Source File: StackHelper.java    From zelixkiller with GNU General Public License v3.0 4 votes vote down vote up 
public InsnValue createConstant(AbstractInsnNode insn) throws AnalyzerException {
	switch (insn.getOpcode()) {
	case Opcodes.ACONST_NULL:
		return InsnValue.NULL_REFERENCE_VALUE;
	case Opcodes.ICONST_M1:
	case Opcodes.ICONST_0:
	case Opcodes.ICONST_1:
	case Opcodes.ICONST_2:
	case Opcodes.ICONST_3:
	case Opcodes.ICONST_4:
	case Opcodes.ICONST_5:
	case Opcodes.BIPUSH:
	case Opcodes.SIPUSH:
		return InsnValue.intValue(insn);
	case Opcodes.LCONST_0:
	case Opcodes.LCONST_1:
		return InsnValue.longValue(insn.getOpcode());
	case Opcodes.FCONST_0:
	case Opcodes.FCONST_1:
	case Opcodes.FCONST_2:
		return InsnValue.floatValue(insn.getOpcode());
	case Opcodes.DCONST_0:
	case Opcodes.DCONST_1:
		return InsnValue.doubleValue(insn.getOpcode());
	case Opcodes.LDC:
		Object obj = ((LdcInsnNode) insn).cst;
		if (obj instanceof Type) {
			return new InsnValue((Type) obj);
		} else {
			Type t = Type.getType(obj.getClass());
			int sort = t.getSort();
			// Non-included types:
			// Type.ARRAY
			// Type.VOID
			// Type.METHOD
			switch (sort) {
			case Type.BOOLEAN:
				return InsnValue.intValue((int) obj);
			case Type.CHAR:
				return InsnValue.charValue((char) obj);
			case Type.BYTE:
				return InsnValue.byteValue((byte) obj);
			case Type.SHORT:
				return InsnValue.shortValue((short) obj);
			case Type.INT:
				return InsnValue.intValue((int) obj);
			case Type.FLOAT:
				return InsnValue.floatValue((float) obj);
			case Type.LONG:
				return InsnValue.longValue((long) obj);
			case Type.DOUBLE:
				return InsnValue.doubleValue((double) obj);
			case Type.OBJECT:
				return new InsnValue(t, obj);
			}
			return new InsnValue(t);
		}
	case Opcodes.NEW:
		return new InsnValue(Type.getType(((TypeInsnNode) insn).desc));
	case Opcodes.JSR:
		// TODO: IDK if this is right.
		return InsnValue.REFERENCE_VALUE;
	}

	return null;
}