list - When to use an Erlang record instead of a tuple? -


when should use erlang record instead of tuple? or, visa-versa, when erlang record unnecessary? relatively new erlang , not sure if using records , tuples properly. understand have read records stored tuples behind scenes.

i typically use records pieces of data going passed around application or persisted somewhere. use tuples things return value of function, params of function, , things specific body of function.

am using records , tuples correctly? there documentation outlining when 1 type should used on another?

it style question. note:

  • tuples of large arity hard correct , swap values. record names each field making swaps less likely.
  • you can match on record subset of fields.
  • a record needs same arity. such bad emulating sum types.
  • records not shared on modules leads lots of .hrl files include statements if used between modules. breaks abstraction.
  • records can kept module-local make harder others use record. improves modularity.

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