defmodule Bandit.HTTP2.Errors do
  @moduledoc false
  # Errors as defined in RFC7540§11

  @typedoc "An error code as defined for GOAWAY and RST_STREAM errors"
  @type error_code() :: non_neg_integer()

  error_codes = %{
    no_error: 0x0,
    protocol_error: 0x1,
    internal_error: 0x2,
    flow_control_error: 0x3,
    settings_timeout: 0x4,
    stream_closed: 0x5,
    frame_size_error: 0x6,
    refused_stream: 0x7,
    cancel: 0x8,
    compression_error: 0x9,
    connect_error: 0xA,
    enhance_your_calm: 0xB,
    inadequate_security: 0xC,
    http_1_1_requires: 0xD
  }

  for {name, value} <- error_codes do
    @spec unquote(name)() :: error_code()
    def unquote(name)(), do: unquote(value)
  end
end