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ScoutAPM agent for Phoenix & Elixir projects. For more information, visit https://www.scoutapm.com/agents/elixir-phoenix-monitoring.

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scout_apm lib scout_apm instruments slime_engine.ex
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lib/scout_apm/instruments/slime_engine.ex 

if Code.ensure_loaded?(PhoenixSlime) do

  defmodule ScoutApm.Instruments.SlimeEngine do

    @behaviour Phoenix.Template.Engine



    # TODO: Make this name correctly for other template locations

    # Currently it assumes too much about being located under `web/templates`

    def compile(path, name) do

      # web/templates/page/index.html.slim(e)

      scout_name =

        path

        # [web, templates, page, index.html.slim(e)]

        |> String.split("/")

        # [page, index.html.slim(e)]

        |> Enum.drop(2)

        # "page/index.html.slim(e)"

        |> Enum.join("/")



      # Since we only have a single layer of nesting currently, and

      # practically every template will be "under" a layout, don't let the

      # layout become the scope. Once we have deeper nesting, we'll want

      # to allow layouts as scopable layers.

      is_layout = String.starts_with?(scout_name, "layout")



      quoted_template = PhoenixSlime.Engine.compile(path, name)



      quote do

        require ScoutApm.Tracing



        ScoutApm.Tracing.timing("Slime", unquote(scout_name), [scopable: !unquote(is_layout)],

          do: unquote(quoted_template)

        )

      end

    end

  end

end