RequiresDirective.cpp

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/******************************************************************************/
/* REXX Kernel                                        RequiresDirective.cpp   */
/*                                                                            */
/* Primitive Translator Abstract Directive Code                               */
/*                                                                            */
/******************************************************************************/
#include <stdlib.h>
#include "RexxCore.h"
#include "RequiresDirective.hpp"
#include "Clause.hpp"
#include "RexxActivation.hpp"
 
 
/**
 * Construct a RequiresDirective.
 *
 * @param n      The name of the requires target.
 * @param clause The source file clause containing the directive.
 */
RequiresDirective::RequiresDirective(RexxString *n, RexxClause *clause) : RexxDirective(clause, KEYWORD_REQUIRES)
{
    name = n;
}
 
/**
 * Normal garbage collecting live mark.
 *
 * @param liveMark The current live object mark.
 */
void RequiresDirective::live(size_t liveMark)
{
    memory_mark(this->nextInstruction);  // must be first one marked (though normally null)
    memory_mark(this->name);
}
 
 
/**
 * The generalized object marking routine.
 *
 * @param reason The processing faze we're running the mark on.
 */
void RequiresDirective::liveGeneral(int reason)
{
    memory_mark_general(this->nextInstruction);  // must be first one marked (though normally null)
    memory_mark_general(this->name);
}
 
 
/**
 * Flatten the directive instance.
 *
 * @param envelope The envelope we're flattening into.
 */
void RequiresDirective::flatten(RexxEnvelope *envelope)
{
    setUpFlatten(RequiresDirective)
 
        flatten_reference(newThis->nextInstruction, envelope);
        flatten_reference(newThis->name, envelope);
    cleanUpFlatten
}
 
 
/**
 * Allocate a new requires directive.
 *
 * @param size   The size of the object.
 *
 * @return The memory for the new object.
 */
void *RequiresDirective::operator new(size_t size)
{
    return new_object(size, T_RequiresDirective); /* Get new object                    */
}
 
 
/**
 * Do install-time processing of the ::requires directive.  This
 * will resolve the directive and merge all of the public information
 * from the resolved file into this program context.
 *
 * @param activation The activation we're running under for the install.
 */
void RequiresDirective::install(RexxActivation *context)
{
    context->loadRequires(name, this);
}