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Search, replace, and diff Elixir code by AST pattern

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ex_ast lib ex_ast diff edit.ex
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lib/ex_ast/diff/edit.ex 

defmodule ExAST.Diff.Edit do

  @moduledoc """

  A single syntax-aware edit between two Elixir sources.

  """



  @type op :: :insert | :delete | :update | :move



  @type t :: %__MODULE__{

          op: op(),

          kind: atom(),

          summary: String.t(),

          old_id: non_neg_integer() | nil,

          new_id: non_neg_integer() | nil,

          old_range: Sourceror.Range.t() | nil,

          new_range: Sourceror.Range.t() | nil,

          meta: map()

        }



  @enforce_keys [:op, :kind, :summary]

  defstruct [:op, :kind, :summary, :old_id, :new_id, :old_range, :new_range, meta: %{}]

end