Method makeDefaults

src/dsql/StmtNodes.cpp:8005–8081

Build a default value assignments.

// Build a default value assignments.
void StoreNode::makeDefaults(thread_db* tdbb, CompilerScratch* csb)
{
	const StreamType stream = target->getStream();
	jrd_rel* relation = csb->csb_rpt[stream].csb_relation;

	vec<jrd_fld*>* vector = relation->rel_fields;
	if (!vector)
		return;

	StreamMap localMap;
	StreamType* map = csb->csb_rpt[stream].csb_map;

	if (!map)
	{
		map = localMap.getBuffer(STREAM_MAP_LENGTH);
		fb_assert(stream <= MAX_STREAMS);
		map[0] = stream;
		map[1] = 1;
		map[2] = 2;
	}

	StmtNodeStack stack;
	USHORT fieldId = 0;
	vec<jrd_fld*>::iterator ptr1 = vector->begin();

	for (const vec<jrd_fld*>::const_iterator end = vector->end(); ptr1 < end; ++ptr1, ++fieldId)
	{
		ValueExprNode* value;

		if (!*ptr1 || !((*ptr1)->fld_generator_name.hasData() || (value = (*ptr1)->fld_default_value)))
			continue;

		CompoundStmtNode* compoundNode = nodeAs<CompoundStmtNode>(statement.getObject());
		fb_assert(compoundNode);

		if (compoundNode)
		{
			bool inList = false;

			for (FB_SIZE_T i = 0; i < compoundNode->statements.getCount(); ++i)
			{
				const AssignmentNode* assign = nodeAs<AssignmentNode>(
					compoundNode->statements[i].getObject());
				fb_assert(assign);

				if (assign)
				{
					const FieldNode* fieldNode = nodeAs<FieldNode>(assign->asgnTo);
					fb_assert(fieldNode);

					if (fieldNode && fieldNode->fieldStream == stream && fieldNode->fieldId == fieldId)
					{
						inList = true;
						break;
					}
				}
			}