Wrapping ok.

Converts a value to an :ok tuple, except when the value is:

• the single atom :ok or an :ok tuple
• the single atom :error or an :error tuple

Questionning ok.

Returns true if the value is an {:ok, val} tuple or the single atom :ok.

Returns false otherwise.

Unwrapping ok.

Unwraps an {:ok, val} tuple, giving only the value, returning anything else as-is. Does not unwrap {:error, ...} tuples.

This function should not be used as it leads to ambiguous code where errors are still wrapped in tuples but values are "naked". A case pattern matching on that type would be very unusual in Elixir/Erlang. Match on the original value or use uok!/1.

Unwrapping ok with raise.

Unwraps an {:ok, val} tuple, giving only the value, or returns the single :ok atom as-is. Raises with any other value.

wok is an alias of wrapping function :ok.