Elixir: AST and final thoughts

🚧 In development

Instructions

🚧 In development

The exercise doesn't pass checking. What to do? 😶

If you've reached a deadlock it's time to ask your question in the «Discussions». How ask a question correctly:

Be sure to attach the test output, without it it's almost impossible to figure out what went wrong, even if you show your code. It's complicated for developers to execute code in their heads, but having a mistake before their eyes most probably will be helpful.

In my environment the code works, but not here 🤨

My code is different from the teacher's one 🤔

I've read the lessons but nothing is clear 🙄

Прочитал урок — ничего не понятно 🙄

Found a bug? Have something to add? Pull requests are welcome!

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Your exercise will be checked with these tests:

defmodule Test do
  use ExUnit.Case

  describe "collect_module_stats work" do
    test "when no function defined" do
      new_module = """
        defmacro MyModule do
          require Integer

          @some_attr "1"

          defmacro no_interference do
            quote do: a = 1
          end
        end
      """

      assert Solution.collect_module_stats(new_module) == []
    end

    test "when few functions defined" do
      new_module = """
        defmacro MyModule do
          def hello() do
            "world"
          end

          def test(a, b) do
            a + b
          end
        end
      """

      assert Solution.collect_module_stats(new_module) == [
               %{arity: 2, name: :test},
               %{arity: 0, name: :hello}
             ]
    end

    test "when few functions and protocols defined" do
      new_module = """
        defmacro MyModule do
          def hello(string) do
            [string, "world"]
          end

          def magic(a, b, c) do
            (a + b) * c
          end

          defp test(a, b) do
            a + b
          end
        end
      """

      assert Solution.collect_module_stats(new_module) == [
               %{arity: 2, name: :test},
               %{arity: 3, name: :magic},
               %{arity: 1, name: :hello}
             ]
    end
  end
end

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Teacher's solution will be available in:

20:00

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