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graphqexl

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Fully-loaded, pure-Elixir GraphQL server implementation with developer tools

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graphqexl lib graphqexl schema type.ex
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lib/graphqexl/schema/type.ex 

alias Graphqexl.Schema.{

  Interface,

  Ref

}



defmodule Graphqexl.Schema.Type do

  @moduledoc """

  GraphQL type

  """



  defstruct(

    deprecated: false,

    deprecation_reason: "",

    description: "",

    fields: [],

    implements: nil,

    name: ""

  )



  @type t ::

    %Graphqexl.Schema.Type{

      deprecated: boolean(),

      deprecation_reason: String.t(),

      description: String.t(),

      fields: Map.t(),

      implements: Interface.t() | nil,

      name: String.t()

    }



  @doc """

  Lists the fields available on the given `t:Graphqexl.Schema.Type.t/0`.



  Returns: `[t:Graphqexl.Schema.Field.t/0]`

  """

  @doc since: "0.1.0"

  @spec fields(Graphqexl.Schema.Type.t):: list(Graphqexl.Schema.Field.t)

  def fields(type) do

    implemented_fields = if is_nil(type.implements) do

      []

    else

      type.implements |> Ref.fields

    end

    type.fields |> Map.keys |> Enum.concat(implemented_fields)

  end



  @doc """

  Checks whether the given field is a custom scalar type.



  Returns: `t:boolean`

  """

  @doc since: "0.1.0"

  @spec is_custom_scalar?(Graphqexl.Schema.Type.t, atom):: boolean

  def is_custom_scalar?(type, field) do

    [:String, :Integer, :Float, :Boolean, :Id] |> type.implements?(field)

  end

end