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Contents
require 'dry/types/decorator'
module Dry
module Types
class Default
include Type
include Dry::Equalizer(:type, :options, :value)
include Decorator
include Builder
class Callable < Default
include Dry::Equalizer(:type, :options)
# Evaluates given callable
# @return [Object]
def evaluate
value.call(type)
end
end
# @return [Object]
attr_reader :value
alias_method :evaluate, :value
# @param [Object, #call] value
# @return [Class] {Default} or {Default::Callable}
def self.[](value)
if value.respond_to?(:call)
Callable
else
self
end
end
# @param [Type] type
# @param [Object] value
def initialize(type, value, *)
super
@value = value
end
# @param [Array] args see {Dry::Types::Builder#constrained}
# @return [Default]
def constrained(*args)
type.constrained(*args).default(value)
end
# @return [true]
def default?
true
end
# @param [Object] input
# @return [Result::Success]
def try(input)
success(call(input))
end
# @param [Object] input
# @return [Object] value passed through {#type} or {#default} value
def call(input)
if input.nil?
evaluate
else
output = type[input]
output.nil? ? evaluate : output
end
end
alias_method :[], :call
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems