Function PAR_make_field

src/jrd/par.cpp:596–631

ValueExprNode* PAR_make_field(thread_db* tdbb, CompilerScratch* csb, USHORT context,
	const MetaName& base_field)
{
/**************************************
 *
 *	P A R _ m a k e _ f i e l d
 *
 **************************************
 *
 * Functional description
 *	Make up a field node in the permanent pool.  This is used
 *	by MET_scan_relation to handle view fields.
 *
 **************************************/
	SET_TDBB(tdbb);

	if (context >= csb->csb_rpt.getCount() || !(csb->csb_rpt[context].csb_flags & csb_used))
		return NULL;

	const StreamType stream = csb->csb_rpt[context].csb_stream;

	jrd_rel* const relation = csb->csb_rpt[stream].csb_relation;
	jrd_prc* const procedure = csb->csb_rpt[stream].csb_procedure;

	const SSHORT id =
		relation ? MET_lookup_field(tdbb, relation, base_field) :
		procedure ? PAR_find_proc_field(procedure, base_field) : -1;

	if (id < 0)
		return NULL;

	if (csb->collectingDependencies())
		PAR_dependency(tdbb, csb, stream, id, base_field);

	return PAR_gen_field(tdbb, stream, id);
}


// Make a list node out of a stack.