Method setError

src/dsql/StmtNodes.cpp:4824–4951

Set status vector according to specified error condition and jump to handle error accordingly.

// Set status vector according to specified error condition and jump to handle error accordingly.
void ExceptionNode::setError(thread_db* tdbb) const
{
	SET_TDBB(tdbb);

	Request* request = tdbb->getRequest();

	if (!exception)
	{
		// Retrieve the status vector and punt.
		request->req_last_xcp.copyTo(tdbb->tdbb_status_vector);
		request->req_last_xcp.clear();
		ERR_punt();
	}

	MetaName exName;
	MetaName relationName;
	string message;

	if (messageExpr)
	{
		// Evaluate exception message and convert it to string.
		const dsc* const desc = EVL_expr(tdbb, request, messageExpr);

		if (desc && !(request->req_flags & req_null))
		{
			MoveBuffer temp;
			UCHAR* string = NULL;
			const USHORT length = MOV_make_string2(tdbb, desc, CS_METADATA, &string, temp);
			message.assign(string, MIN(length, XCP_MESSAGE_LENGTH));
		}
	}

	const SLONG xcpCode = exception->code;

	switch (exception->type)
	{
		case ExceptionItem::GDS_CODE:
			if (xcpCode == isc_check_constraint)
			{
				MET_lookup_cnstrt_for_trigger(tdbb, exName, relationName,
					request->getStatement()->triggerName);
				ERR_post(Arg::Gds(xcpCode) << Arg::Str(exName) << Arg::Str(relationName));
			}
			else
				ERR_post(Arg::Gds(xcpCode));

		case ExceptionItem::XCP_CODE:
		{
			string tempStr;
			const TEXT* s;

			// CVC: If we have the exception name, use it instead of the number.
			// Solves SF Bug #494981.
			MET_lookup_exception(tdbb, xcpCode, exName, &tempStr);

			if (message.hasData())
				s = message.c_str();
			else if (tempStr.hasData())