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Contents
# frozen_string_literal: true
require 'active_support/inflector'
require 'eac_ruby_utils/acts_as_immutable/base_accessor'
require 'eac_ruby_utils/patches/class/common_constructor'
module EacRubyUtils
module ActsAsImmutable
# Should implement in concrect classes:
# * immutable_value_set_assert(value)
# * initial_value()
class EnumerableAccessor < ::EacRubyUtils::ActsAsImmutable::BaseAccessor
def apply(klass)
apply_singular(klass)
apply_plural(klass)
end
def apply_plural(klass)
accessor = self
klass.send(:define_method, ::ActiveSupport::Inflector.pluralize(name)) do |*args|
case args.count
when 0 then next accessor.immutable_value_get_filtered(self)
when 1 then next accessor.immutable_value_set_filtered(self, args.first)
else
raise ::ArgumentError, "wrong number of arguments (given #{args.count}, expected 0..1)"
end
end
end
def apply_singular(klass)
accessor = self
klass.send(:define_method, name) do |value|
accessor.immutable_value_push(self, value)
end
end
def immutable_value_get(object)
super || initial_value.dup
end
def immutable_value_push(object, value)
duplicate_object(object) do |old_value|
(old_value || initial_value.dup) + [value]
end
end
def immutable_value_set(object, value)
duplicate_object(object) { |_old_value| immutable_value_set_assert(value) }
end
end
end
end
Version data entries
28 entries across 28 versions & 2 rubygems