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excessibility

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Library for accessibility snapshot testing in Phoenix applications using axe-core and Playwright.

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excessibility lib telemetry_capture enrichers memory.ex
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lib/telemetry_capture/enrichers/memory.ex 

defmodule Excessibility.TelemetryCapture.Enrichers.Memory do

  @moduledoc """

  Enriches timeline events with memory size information.



  Calculates the byte size of assigns at each event by serializing

  to binary term format. This gives a proxy for memory usage.



  ## Usage



  Runs automatically during timeline building. Adds `:memory_size`

  field (in bytes) to each timeline event.



  ## Example Output



      %{

        sequence: 3,

        event: "handle_event:filter",

        memory_size: 45000,

        key_state: %{...}

      }

  """



  @behaviour Excessibility.TelemetryCapture.Enricher



  @doc """

  Returns the enricher name.

  """

  def name, do: :memory



  @doc """

  Enriches assigns with memory size.



  Serializes assigns to binary format and returns byte size.

  This provides a proxy for memory usage at this event.

  """

  def enrich(assigns, _opts) do

    size = calculate_size(assigns)

    %{memory_size: size}

  end



  defp calculate_size(assigns) do

    assigns

    |> :erlang.term_to_binary()

    |> byte_size()

  end

end