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#include "builtins/builtins.h"
#include "parse/parse.h"
#include "precedence.h"
using namespace empathy;
using namespace empathy::ir;
using namespace empathy::parse;
namespace empathy::builtins
{
void SetupCommaOp( Env& e )
{
RegisterLeftAssInfixOp( e, ","_sid, precedence::CommaOp,
[]( auto&& lhs, auto&& rhs ) -> optional< Value >
[]( auto&& lhs, auto&& rhs )
{
if( IsOpenTuple( lhs ) )
return AppendToTuple( lhs, rhs );
return AppendToTuple( AppendToTuple( EmptyTuple(), lhs ), rhs );
} );
}
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