Method make

src/dsql/ExprNodes.cpp:738–767

} // anon namespace

void ArithmeticNode::make(DsqlCompilerScratch* dsqlScratch, dsc* desc)
{
	dsc desc1, desc2;

	DsqlDescMaker::fromNode(dsqlScratch, &desc1, arg1);
	DsqlDescMaker::fromNode(dsqlScratch, &desc2, arg2);

	if (desc1.isNull())
	{
		desc1 = desc2;
		desc1.setNull();
	}

	if (desc2.isNull())
	{
		desc2 = desc1;
		desc2.setNull();
	}

	if (nodeIs<NullNode>(arg1) && nodeIs<NullNode>(arg2))
	{
		// NULL + NULL = NULL of INT
		desc->makeLong(0);
		desc->setNullable(true);
	}
	else if (dialect1)
		makeDialect1(desc, desc1, desc2);
	else
		makeDialect3(desc, desc1, desc2);
}

void ArithmeticNode::makeDialect1(dsc* desc, dsc& desc1, dsc& desc2)
{