__struct__/0,1 is not meant to return an AST. Using
Macro.to_string/1 might lead to incorrect error messages:
defmodule MyStruct do
def __struct__, do: {:ok, :one, :two}
def __struct__(_), do: {:ok, :one, :two}
end
iex> %MyStruct{}
** (CompileError) iex:2: expected MyStruct.__struct__/1 to
return a map with a :__struct__ key that holds the name
of the struct (atom), got: ok
Fernando Tapia Rico
a7019ac90a