Function GEN_expr

src/dsql/gen.cpp:104–137

GEN_expr @brief Generate blr for an arbitrary expression. @param dsqlScratch @param node **/

 **/
void GEN_expr(DsqlCompilerScratch* dsqlScratch, ExprNode* node)
{
	RseNode* rseNode = nodeAs<RseNode>(node);
	if (rseNode)
	{
		GEN_rse(dsqlScratch, rseNode);
		return;
	}

	node->genBlr(dsqlScratch);

	// Check whether the node we just processed is for a dialect 3
	// operation which gives a different result than the corresponding
	// operation in dialect 1. If it is, and if the client dialect is 2,
	// issue a warning about the difference.

	// ASF: Shouldn't we check nod_gen_id2 too?

	const char* compatDialectVerb;

	if (node->getKind() == DmlNode::KIND_VALUE && dsqlScratch->clientDialect == SQL_DIALECT_V6_TRANSITION &&
		(compatDialectVerb = node->getCompatDialectVerb()))
	{
		dsc desc;
		DsqlDescMaker::fromNode(dsqlScratch, &desc, static_cast<ValueExprNode*>(node));

		if (desc.dsc_dtype == dtype_int64)
		{
			ERRD_post_warning(
				Arg::Warning(isc_dsql_dialect_warning_expr) <<
				Arg::Str(compatDialectVerb));
		}
	}
}

/**