- if not self isa AIntExpr then return null
- return self.value.as(not null)
- end
-
- # Get `self` as a single identifier.
- # Return null if not a single identifier.
- fun as_id: nullable String
- do
- if self isa AMethidExpr then
- return self.collect_text
- end
- if not self isa ACallExpr then return null
- if not self.n_expr isa AImplicitSelfExpr then return null
- if not self.n_args.n_exprs.is_empty then return null
- return self.n_id.text