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Search, replace, and diff Elixir code by AST pattern

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ex_ast lib ex_ast diff render.ex
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lib/ex_ast/diff/render.ex 

defmodule ExAST.Diff.Render do

  @moduledoc false



  alias ExAST.Diff.Edit



  @spec summary([Edit.t()]) :: [String.t()]

  def summary(edits), do: Enum.map(edits, & &1.summary)



  @spec node_source(Macro.t()) :: String.t()

  def node_source(node) do

    Sourceror.to_string(node)

  rescue

    _ -> safe_to_string(node)

  catch

    _, _ -> safe_to_string(node)

  end



  defp safe_to_string(node) do

    Macro.to_string(node)

  rescue

    _ -> inspect(node, pretty: true, limit: 50)

  catch

    _, _ -> inspect(node, pretty: true, limit: 50)

  end

end