Macro is expanded to structure definition and constructor.

Usage

  defmodule ExCraft.Car do
    import ExCraft
    craft [
      %ExCraft.Field{name: :brand,  type: :string,        required: false,   default: "custom",  enforce: false},
      %ExCraft.Field{name: :year,   type: :pos_integer,   required: true,    default: nil,       enforce: true},
      %ExCraft.Field{name: :used,   type: :boolean,       required: false,   default: true,      enforce: false},
    ]
  end

Examples

  iex> alias ExCraft.Car
  ExCraft.Car
  iex> %Car{year: 1990}
  %Car{brand: "custom", used: true, year: 1990}
  iex> Car.new(%{"year" => "1990"})
  %Car{brand: "custom", used: true, year: 1990}
  iex> Car.new(%{year: "1990"})
  %Car{brand: "custom", used: true, year: 1990}
  iex> Car.new([year: "1990"])
  %Car{brand: "custom", used: true, year: 1990}
  iex> Car.new(%{"year" => 1990.0})
  %Car{brand: "custom", used: true, year: 1990}
  iex> Car.new(%Car{brand: "custom", used: true, year: 1990})
  %Car{brand: "custom", used: true, year: 1990}
  iex> Car.new(%{"year" => "1990.1"})
  ** (RuntimeError) Elixir.ExCraft.Car ExCraft error. Type of "1990.1" is not pos_integer. Error in field %ExCraft.Field{default: nil, enforce: true, name: :year, required: true, type: :pos_integer} of data source %{"year" => "1990.1"}.

Boolean function, checks type of first argument.

Examples

  iex> ExCraft.is_type("hello", :string)
  true
  iex> ExCraft.is_type("hello", :binary)
  true
  iex> ExCraft.is_type(<<200, 200, 200>>, :string)
  false
  iex> ExCraft.is_type(<<200, 200, 200>>, :binary)
  true