Method: NamedArguments::ClassMethods#type_converter

Defined in:

lib/named_arguments.rb

#type_converter(field, new_klass) ⇒ Object

# File 'lib/named_arguments.rb', line 227

def type_converter field, new_klass
  alias_name = ('attribute_setter_for_' + field.to_s).to_sym
  setter_method_name = (field.to_s + '=').to_sym
  alias_method alias_name, setter_method_name
  send :define_method, setter_method_name do |rhs|
    if Integer === new_klass
      v = rhs.to_i
    elsif new_klass == String
      v = rhs.to_s
    elsif new_klass == Symbol
      v = rhs.to_sym
    elsif new_klass == :boolean
      v = !!rhs
    elsif Proc === new_klass
      v = new_klass.call v
    else
      v = new_klass.new rhs
    end
    self.send alias_name, v
  end
end