List of addOpcode() Examples

Examples of addOpcode()

javassist.bytecode.Bytecode.addOpcode()
Appends an 8bit opcode to the end of the bytecode sequence. The current stack depth is updated. max_stack is updated if the current stack depth is the deepest so far.
Note: some instructions such as INVOKEVIRTUAL does not update the current stack depth since the increment depends on the method signature. growStack() must be explicitly called.

Examples of javassist.bytecode.Bytecode.addOpcode()

    /* local variable | this | */
    Bytecode code = new Bytecode(cp, 2, 1);
    // aload_0 // load this
    code.addAload(0);
    // getfield // get field "$JAVASSIST_CALLBACK" defined already
    code.addOpcode(Opcode.GETFIELD);
    int field_index = cp.addFieldrefInfo(this_class_index,
                                         HANDLER_FIELD_NAME, HANDLER_FIELD_DESCRIPTOR);
    code.addIndex(field_index);
    // areturn // return the value of the field
    code.addOpcode(Opcode.ARETURN);

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Examples of javassist.bytecode.Bytecode.addOpcode()

    code.addOpcode(Opcode.GETFIELD);
    int field_index = cp.addFieldrefInfo(this_class_index,
                                         HANDLER_FIELD_NAME, HANDLER_FIELD_DESCRIPTOR);
    code.addIndex(field_index);
    // areturn // return the value of the field
    code.addOpcode(Opcode.ARETURN);
    minfo.setCodeAttribute(code.toCodeAttribute());
    minfo.setAccessFlags(AccessFlag.PUBLIC);
    classfile.addMethod(minfo);
  }

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Examples of javassist.bytecode.Bytecode.addOpcode()

    // aload_0 // load this
    code.addAload(0);
    // aload_1 // load callback
    code.addAload(1);
    // putfield // put field "$JAVASSIST_CALLBACK" defined already
    code.addOpcode(Opcode.PUTFIELD);
    int field_index = cp.addFieldrefInfo(this_class_index,
                                         HANDLER_FIELD_NAME, HANDLER_FIELD_DESCRIPTOR);
    code.addIndex(field_index);
    // return
    code.addOpcode(Opcode.RETURN);

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Examples of javassist.bytecode.Bytecode.addOpcode()

    code.addOpcode(Opcode.PUTFIELD);
    int field_index = cp.addFieldrefInfo(this_class_index,
                                         HANDLER_FIELD_NAME, HANDLER_FIELD_DESCRIPTOR);
    code.addIndex(field_index);
    // return
    code.addOpcode(Opcode.RETURN);
    minfo.setCodeAttribute(code.toCodeAttribute());
    minfo.setAccessFlags(AccessFlag.PUBLIC);
    classfile.addMethod(minfo);
  }

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Examples of javassist.bytecode.Bytecode.addOpcode()

    /* local variables | target obj | each oldvalue | */
    Bytecode code = new Bytecode(cp, 5, 3);
    // aload_0
    code.addAload(0);
    // getfield // get each field
    code.addOpcode(Opcode.GETFIELD);
    int base_field_index = cp.addFieldrefInfo(this_class_index, finfo
        .getName(), finfo.getDescriptor());
    code.addIndex(base_field_index);
    // aload_0
    code.addAload(0);

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Examples of javassist.bytecode.Bytecode.addOpcode()

    int enabled_class_index = cp.addClassInfo(FIELD_HANDLED_TYPE_NAME);
    code.addInvokeinterface(enabled_class_index,
                            GETFIELDHANDLER_METHOD_NAME, GETFIELDHANDLER_METHOD_DESCRIPTOR,
                            1);
    // ifnonnull
    code.addOpcode(Opcode.IFNONNULL);
    code.addIndex(4);
    // *return // each type
    addTypeDependDataReturn(code, finfo.getDescriptor());
    // *store_1 // each type
    addTypeDependDataStore(code, finfo.getDescriptor(), 1);

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Examples of javassist.bytecode.Bytecode.addOpcode()

    int enabled_class_index = cp.addClassInfo(FIELD_HANDLED_TYPE_NAME);
    code.addInvokeinterface(enabled_class_index,
                            GETFIELDHANDLER_METHOD_NAME, GETFIELDHANDLER_METHOD_DESCRIPTOR,
                            1);
    // ifnonnull (label1)
    code.addOpcode(Opcode.IFNONNULL);
    code.addIndex(9);
    // aload_0
    code.addAload(0);
    // *load_1
    addTypeDependDataLoad(code, finfo.getDescriptor(), 1);

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Examples of javassist.bytecode.Bytecode.addOpcode()

    // aload_0
    code.addAload(0);
    // *load_1
    addTypeDependDataLoad(code, finfo.getDescriptor(), 1);
    // putfield
    code.addOpcode(Opcode.PUTFIELD);
    int base_field_index = cp.addFieldrefInfo(this_class_index, finfo
        .getName(), finfo.getDescriptor());
    code.addIndex(base_field_index);
    code.growStack(-Descriptor.dataSize(finfo.getDescriptor()));
    // return ;

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Examples of javassist.bytecode.Bytecode.addOpcode()

    int base_field_index = cp.addFieldrefInfo(this_class_index, finfo
        .getName(), finfo.getDescriptor());
    code.addIndex(base_field_index);
    code.growStack(-Descriptor.dataSize(finfo.getDescriptor()));
    // return ;
    code.addOpcode(Opcode.RETURN);
    // aload_0
    code.addAload(0);
    // dup
    code.addOpcode(Opcode.DUP);
    // invokeinterface // enabled.getInterceptFieldCallback()

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Examples of javassist.bytecode.Bytecode.addOpcode()

    // return ;
    code.addOpcode(Opcode.RETURN);
    // aload_0
    code.addAload(0);
    // dup
    code.addOpcode(Opcode.DUP);
    // invokeinterface // enabled.getInterceptFieldCallback()
    code.addInvokeinterface(enabled_class_index,
                            GETFIELDHANDLER_METHOD_NAME, GETFIELDHANDLER_METHOD_DESCRIPTOR,
                            1);
    // aload_0

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