creates a mutablevalue mutable value with the given value , or if one already exists sets the preexisting one to that value concode_field_sep Set<Variable> variables concode_field_sep Optional<Variable> getValue concode_elem_sep boolean contains concode_elem_sep Variable create concode_elem_sep boolean remove
Variable function ( String arg0 , Datum arg1 ) { Optional < Variable > loc0 = getValue ( arg0 ) ; if ( ! loc0 . isPresent ( ) ) { return create ( arg0 , arg1 ) ; } else { loc0 . get ( ) . setValue ( arg1 ) ; return loc0 . get ( ) ; } }