9 lines
215 B
Elixir
9 lines
215 B
Elixir
defmodule ASTMangler do
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def expand(ast, replacement) do
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Macro.prewalk(ast, fn(node) -> update(node, replacement) end)
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end
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def update(:__, replacement), do: replacement
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def update(node, _), do: node
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end
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