venomnert

venomnert

Named functions and scopes

Would someone explain the following snippet of code

defmodule P do
  def f, do: "I am P's f"
  def g, do: f
end
iex> P.g
"I am P's f"

When I looked into it seems that ‘f’ inside of g/0 get’s treated as a function. However, how does f() become available to g/0. I thought named functions can’t access variables outside their scope unless unquote is used

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LostKobrakai

LostKobrakai

defmodule P do
  def f, do: "I am P's f"
  def g, do: f()
end

The parenthesis on zero-arity function calls are optional even though it’s discouraged to skip them.

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