Sha256: 4a25c654c7944f0de958153d14103743fa2c4dc43e631cb06e4635647e3a6522
Contents?: true
Size: 1.43 KB
Versions: 11
Compression:
Stored size: 1.43 KB
Contents
# encoding: utf-8
module Axiom
module Types
# Add a minimum and maximum length constraint to a type
module LengthComparable
# The range of allowed lengths
#
# @return [Range]
#
# @api public
attr_reader :range
# Hook called when module is extended
#
# Add #minimum_length and #maximum_length DSL methods to descendant.
#
# @param [Class<Axiom::Types::Type>] descendant
#
# @return [undefined]
#
# @api private
def self.extended(descendant)
super
descendant.class_eval do
accept_options :minimum_length, :maximum_length
minimum_length Infinity.instance
maximum_length NegativeInfinity.instance
end
end
# Finalize by setting up a length range constraint
#
# @return [Axiom::Types::LengthComparable]
#
# @api private
def finalize
return self if frozen?
@range = IceNine.deep_freeze(minimum_length..maximum_length)
use_length_within_range
super
end
private
# Add a constraint for a length within a range
#
# @return [undefined]
#
# @todo freeze the minimum_length and maximum_length
#
# @api private
def use_length_within_range
constraint { |object| range.cover?(object.length) }
end
end # module LengthComparable
end # module Types
end # module Axiom
Version data entries
11 entries across 9 versions & 4 rubygems