ReplyInstruction.cpp

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/******************************************************************************/
/* REXX Translator                                                            */
/*                                                                            */
/* Primitive Reply Parse Class                                                */
/*                                                                            */
/******************************************************************************/
#include <stdlib.h>
#include "RexxCore.h"
#include "RexxActivation.hpp"
#include "ReplyInstruction.hpp"
 
RexxInstructionReply::RexxInstructionReply(
    RexxObject *_expression)
/******************************************************************************/
/* Function:  Initialize a REXX REPLY instruction                             */
/******************************************************************************/
{
                                       /* do the common initialization      */
 OrefSet(this, this->expression, _expression);
}
 
void RexxInstructionReply::execute(
    RexxActivation      *context,      /* current activation context        */
    RexxExpressionStack *stack)        /* evaluation stack                  */
/******************************************************************************/
/* Function:  Execute a REXX REPLY instruction                                */
/******************************************************************************/
{
    RexxObject *result;                  /* expression result                 */
    context->traceInstruction(this);     /* trace if necessary                */
    if (!context->inMethod())            /* is this a method clause?          */
    {
                                         /* raise an error                    */
        reportException(Error_Translation_reply);
    }
    if (this->expression != OREF_NULL) /* given an expression value?        */
    {
        /* evaluate the expression           */
        result = this->expression->evaluate(context, stack);
        context->traceResult(result);      /* trace if necessary                */
                                           /* get the expression value and tell */
        context->reply(result);            /* the activation to reply with it   */
    }
    else
    {
        context->reply(OREF_NULL);         /* return with no value              */
    }
    context->pauseInstruction();         /* do debug pause if necessary       */
}