Package javassist.bytecode

Examples of javassist.bytecode.Bytecode.addIndex()

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    code.addAload(0);
    // getfield // get field "$JAVASSIST_CALLBACK" defined already
    code.addOpcode(Opcode.GETFIELD);
    int field_index = cp.addFieldrefInfo(this_class_index,
                                         HANDLER_FIELD_NAME, HANDLER_FIELD_DESCRIPTOR);
    code.addIndex(field_index);
    // areturn // return the value of the field
    code.addOpcode(Opcode.ARETURN);
    minfo.setCodeAttribute(code.toCodeAttribute());
    minfo.setAccessFlags(AccessFlag.PUBLIC);
    classfile.addMethod(minfo);
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    code.addAload(1);
    // putfield // put field "$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);
    minfo.setCodeAttribute(code.toCodeAttribute());
    minfo.setAccessFlags(AccessFlag.PUBLIC);
    classfile.addMethod(minfo);
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    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);
    // invokeinterface // invoke Enabled.getInterceptFieldCallback()
    int enabled_class_index = cp.addClassInfo(FIELD_HANDLED_TYPE_NAME);
    code.addInvokeinterface(enabled_class_index,
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    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);
    // aload_0
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    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);
    // putfield
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    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 ;
    code.addOpcode(Opcode.RETURN);
    // aload_0
    code.addAload(0);
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    code.addLdc(finfo.getName());
    // aload_0
    code.addAload(0);
    // getfield // old value of the field
    code.addOpcode(Opcode.GETFIELD);
    code.addIndex(base_field_index);
    code.growStack(Descriptor.dataSize(finfo.getDescriptor()) - 1);
    // *load_1
    addTypeDependDataLoad(code, finfo.getDescriptor(), 1);
    // invokeinterface // callback.write*(..)
    addInvokeFieldHandlerMethod(classfile, code, finfo.getDescriptor(),
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    // invokeinterface // callback.write*(..)
    addInvokeFieldHandlerMethod(classfile, code, finfo.getDescriptor(),
                                false);
    // putfield // new value of the field
    code.addOpcode(Opcode.PUTFIELD);
    code.addIndex(base_field_index);
    code.growStack(-Descriptor.dataSize(finfo.getDescriptor()));
    // return
    code.addOpcode(Opcode.RETURN);

    minfo.setCodeAttribute(code.toCodeAttribute());
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        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 );
    // putfield
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    // *load_1
    addTypeDependDataLoad( code, finfo.getDescriptor(), 1 );
    // putfield
    code.addOpcode( Opcode.PUTFIELD );
    final int baseFieldIndex = constPool.addFieldrefInfo( thisClassInfo, finfo.getName(), finfo.getDescriptor() );
    code.addIndex( baseFieldIndex );
    code.growStack( -Descriptor.dataSize( finfo.getDescriptor() ) );
    // return ;
    code.addOpcode( Opcode.RETURN );
    // aload_0
    code.addAload( 0 );
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