OCaml - Pattern matching with list reference in a tuple
functional-programming, ml, ocaml, pattern-matching
Solution
The `ref` type is defined as a record with a mutable field:
type 'a ref = {
mutable contents : 'a;
}
This means that you can pattern match against it using record syntax like this:
match a with
| _, { contents = (c,n)::t } -> doSomething
Problem
is there a cleaner way of doing this? I'm trying to do pattern matching of a `(a' option * (char * nodeType) list ref` the only way I found was doing this : ``` match a with | _, l -> match !l with | (c, n)::t -> doSomething ``` Wouldn't there be a way to match `a` with something else like ... ``` match a with | _, ref (c,n)::t -> doSomething ``` ... or something similar? In this example it doesn't look heavy to just do another match with, but in the real case it can somewhat be... Thanks for your answers.