dominicsayers/machinist

module Machinist
  # Raised when make! is called on a class whose blueprints don't support
  # saving.
  class BlueprintCantSaveError < RuntimeError
    attr_reader :blueprint

    def initialize(blueprint, message = nil)
      @blueprint = blueprint
      @message = message
    end

    def message
      @message ||= "make! is not supported by blueprints for class #{@blueprint.klass.name}"
    end
  end

  # Raised when calling make on a class with no corresponding blueprint
  # defined.
  class NoBlueprintError < RuntimeError
    attr_reader :klass, :name

    def initialize(klass, name)
      @klass = klass
      @name  = name
    end

    def message
      "No #{@name} blueprint defined for class #{@klass.name}"
    end
  end
end