Java Code Examples for proguard.classfile.instruction.InstructionConstants#OP_GETSTATIC

The following examples show how to use proguard.classfile.instruction.InstructionConstants#OP_GETSTATIC . 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: SideEffectInstructionChecker.java    From java-n-IDE-for-Android with Apache License 2.0 6 votes vote down vote up 
public void visitConstantInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, ConstantInstruction constantInstruction)
{
    byte opcode = constantInstruction.opcode;
    // Check for instructions that might cause side effects.
    if (opcode == InstructionConstants.OP_GETSTATIC     ||
        opcode == InstructionConstants.OP_PUTSTATIC     ||
        opcode == InstructionConstants.OP_GETFIELD      ||
        opcode == InstructionConstants.OP_PUTFIELD      ||
        opcode == InstructionConstants.OP_INVOKEVIRTUAL ||
        opcode == InstructionConstants.OP_INVOKESPECIAL ||
        opcode == InstructionConstants.OP_INVOKESTATIC  ||
        opcode == InstructionConstants.OP_INVOKEINTERFACE)
    {
        // Check if the field is write-only or volatile, or if the invoked
        // method is causing any side effects.
        clazz.constantPoolEntryAccept(constantInstruction.constantIndex, this);
    }
}
Example 2
Source File: ReadWriteFieldMarker.java    From java-n-IDE-for-Android with Apache License 2.0 5 votes vote down vote up 
public void visitConstantInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, ConstantInstruction constantInstruction)
{
    byte opcode = constantInstruction.opcode;

    // Check for instructions that involve fields.
    switch (opcode)
    {
        case InstructionConstants.OP_LDC:
        case InstructionConstants.OP_LDC_W:
            // Mark the field, if any, as being read from and written to.
            reading = true;
            writing = true;
            clazz.constantPoolEntryAccept(constantInstruction.constantIndex, this);
            break;

        case InstructionConstants.OP_GETSTATIC:
        case InstructionConstants.OP_GETFIELD:
            // Mark the field as being read from.
            reading = true;
            writing = false;
            clazz.constantPoolEntryAccept(constantInstruction.constantIndex, this);
            break;

        case InstructionConstants.OP_PUTSTATIC:
        case InstructionConstants.OP_PUTFIELD:
            // Mark the field as being written to.
            reading = false;
            writing = true;
            clazz.constantPoolEntryAccept(constantInstruction.constantIndex, this);
            break;
    }
}
Example 3
Source File: ExceptionInstructionChecker.java    From java-n-IDE-for-Android with Apache License 2.0 5 votes vote down vote up 
public void visitConstantInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, ConstantInstruction constantInstruction)
    {
        byte opcode = constantInstruction.opcode;

        // Check for instructions that may throw exceptions.
        switch (opcode)
        {
            case InstructionConstants.OP_GETSTATIC:
            case InstructionConstants.OP_PUTSTATIC:
            case InstructionConstants.OP_GETFIELD:
            case InstructionConstants.OP_PUTFIELD:
            case InstructionConstants.OP_INVOKEVIRTUAL:
            case InstructionConstants.OP_INVOKESPECIAL:
            case InstructionConstants.OP_INVOKESTATIC:
            case InstructionConstants.OP_INVOKEINTERFACE:
            case InstructionConstants.OP_NEW:
            case InstructionConstants.OP_ANEWARRAY:
            case InstructionConstants.OP_CHECKCAST:
            case InstructionConstants.OP_INSTANCEOF:
            case InstructionConstants.OP_MULTIANEWARRAY:
                // These instructions may throw exceptions.
                mayThrowExceptions = true;
        }

//          case InstructionConstants.OP_INVOKEVIRTUAL:
//          case InstructionConstants.OP_INVOKESPECIAL:
//          case InstructionConstants.OP_INVOKESTATIC:
//          case InstructionConstants.OP_INVOKEINTERFACE:
//            // Check if the invoking the method may throw an exception.
//            clazz.constantPoolEntryAccept(constantInstruction.constantIndex, this);
    }
Example 4
Source File: EvaluationSimplifier.java    From java-n-IDE-for-Android with Apache License 2.0 5 votes vote down vote up 
public void visitConstantInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, ConstantInstruction constantInstruction)
{
    switch (constantInstruction.opcode)
    {
        case InstructionConstants.OP_GETSTATIC:
        case InstructionConstants.OP_GETFIELD:
            replaceAnyPushInstruction(clazz, offset, constantInstruction);
            break;

        case InstructionConstants.OP_INVOKEVIRTUAL:
        case InstructionConstants.OP_INVOKESPECIAL:
        case InstructionConstants.OP_INVOKESTATIC:
        case InstructionConstants.OP_INVOKEINTERFACE:
            if (constantInstruction.stackPushCount(clazz) > 0 &&
                !sideEffectInstructionChecker.hasSideEffects(clazz,
                                                             method,
                                                             codeAttribute,
                                                             offset,
                                                             constantInstruction))
            {
                replaceAnyPushInstruction(clazz, offset, constantInstruction);
            }

            break;

        case InstructionConstants.OP_CHECKCAST:
            replaceReferencePushInstruction(clazz, offset, constantInstruction);
            break;
    }
}
Example 5
Source File: BasicInvocationUnit.java    From java-n-IDE-for-Android with Apache License 2.0 4 votes vote down vote up 
public void invokeMember(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, ConstantInstruction constantInstruction, Stack stack)
{
    int constantIndex = constantInstruction.constantIndex;

    switch (constantInstruction.opcode)
    {
        case InstructionConstants.OP_GETSTATIC:
            isStatic = true;
            isLoad   = true;
            break;

        case InstructionConstants.OP_PUTSTATIC:
            isStatic = true;
            isLoad   = false;
            break;

        case InstructionConstants.OP_GETFIELD:
            isStatic = false;
            isLoad   = true;
            break;

        case InstructionConstants.OP_PUTFIELD:
            isStatic = false;
            isLoad   = false;
            break;

        case InstructionConstants.OP_INVOKESTATIC:
            isStatic = true;
            break;

        case InstructionConstants.OP_INVOKEVIRTUAL:
        case InstructionConstants.OP_INVOKESPECIAL:
        case InstructionConstants.OP_INVOKEINTERFACE:
            isStatic = false;
            break;
    }

    // Pop the parameters and push the return value.
    this.stack = stack;
    clazz.constantPoolEntryAccept(constantIndex, this);
    this.stack = null;
}