Function PASS1_check_unique_fields_names

src/dsql/pass1.cpp:682–712

PASS1_check_unique_fields_names check fields (params, variables, cursors etc) names against sorted array if success, add them into array **/

	if success, add them into array
 **/
void PASS1_check_unique_fields_names(StrArray& names, const CompoundStmtNode* fields)
{
	if (!fields)
		return;

	const NestConst<StmtNode>* ptr = fields->statements.begin();
	const NestConst<StmtNode>* const end = fields->statements.end();

	for (; ptr != end; ++ptr)
	{
		const char* name = NULL;

		if (auto varNode = nodeAs<DeclareVariableNode>(*ptr))
			name = varNode->dsqlDef->name.c_str();
		else if (auto cursorNode = nodeAs<DeclareCursorNode>(*ptr))
			name = cursorNode->dsqlName.c_str();
		else if (nodeAs<DeclareSubProcNode>(*ptr) || nodeAs<DeclareSubFuncNode>(*ptr))
			continue;

		fb_assert(name);

		FB_SIZE_T pos;
		if (!names.find(name, pos))
			names.insert(pos, name);
		else
		{
			ERRD_post(Arg::Gds(isc_sqlerr) << Arg::Num(-637) <<
					  Arg::Gds(isc_dsql_duplicate_spec) << Arg::Str(name));
		}
	}
}


// Compose two booleans.