kotovalexarian-likes-github/rails--rails
1
0
Fork 0
mirror of https://github.com/rails/rails.git synced 2022-11-09 12:12:34 -05:00
Code Releases Activity

Add examples of default values using blocks for mattr_reader, mattr_writer and mattr_accessor

Browse source
This commit is contained in:
Kaíque Kandy Koga 2022-03-09 18:58:08 -03:00
parent 2837572fab
commit d89be419ba
1 changed files with 6 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
activesupport/lib/active_support/core_ext/module/attribute_accessors.rb
View file

@ -43,6 +43,7 @@ class Module
#
# module HairColors
# mattr_reader :hair_colors, default: [:brown, :black, :blonde, :red]
# mattr_reader(:hair_styles) { [:long, :short] }
# end
#
# class Person
@ -50,6 +51,7 @@ class Module
# end
#
# Person.new.hair_colors # => [:brown, :black, :blonde, :red]
# Person.new.hair_styles # => [:long, :short]
def mattr_reader(*syms, instance_reader: true, instance_accessor: true, default: nil, location: nil)
raise TypeError, "module attributes should be defined directly on class, not singleton" if singleton_class?
location ||= caller_locations(1, 1).first
@ -107,6 +109,7 @@ class Module
#
# module HairColors
# mattr_writer :hair_colors, default: [:brown, :black, :blonde, :red]
# mattr_writer(:hair_styles) { [:long, :short] }
# end
#
# class Person
@ -114,6 +117,7 @@ class Module
# end
#
# Person.class_variable_get("@@hair_colors") # => [:brown, :black, :blonde, :red]
# Person.class_variable_get("@@hair_styles") # => [:long, :short]
def mattr_writer(*syms, instance_writer: true, instance_accessor: true, default: nil, location: nil)
raise TypeError, "module attributes should be defined directly on class, not singleton" if singleton_class?
location ||= caller_locations(1, 1).first
@ -192,6 +196,7 @@ class Module
#
# module HairColors
# mattr_accessor :hair_colors, default: [:brown, :black, :blonde, :red]
# mattr_accessor(:hair_styles) { [:long, :short] }
# end
#
# class Person
@ -199,6 +204,7 @@ class Module
# end
#
# Person.class_variable_get("@@hair_colors") # => [:brown, :black, :blonde, :red]
# Person.class_variable_get("@@hair_styles") # => [:long, :short]
def mattr_accessor(*syms, instance_reader: true, instance_writer: true, instance_accessor: true, default: nil, &blk)
location = caller_locations(1, 1).first
mattr_reader(*syms, instance_reader: instance_reader, instance_accessor: instance_accessor, default: default, location: location, &blk)