Sha256: 66b68774c852e4a61403a10dcf2aca227b772537c2547cec59de0855d099e381
Contents?: true
Size: 1.31 KB
Versions: 109
Compression:
Stored size: 1.31 KB
Contents
# Extends the class object with class and instance accessors for class attributes,
# just like the native attr* accessors for instance attributes.
#
# class Person
# cattr_accessor :hair_colors
# end
#
# Person.hair_colors = [:brown, :black, :blonde, :red]
class Class
def cattr_reader(*syms)
options = syms.extract_options!
syms.each do |sym|
next if sym.is_a?(Hash)
class_eval(<<-EOS, __FILE__, __LINE__ + 1)
unless defined? @@#{sym}
@@#{sym} = nil
end
def self.#{sym}
@@#{sym}
end
EOS
unless options[:instance_reader] == false
class_eval(<<-EOS, __FILE__, __LINE__ + 1)
def #{sym}
@@#{sym}
end
EOS
end
end
end
def cattr_writer(*syms)
options = syms.extract_options!
syms.each do |sym|
class_eval(<<-EOS, __FILE__, __LINE__ + 1)
unless defined? @@#{sym}
@@#{sym} = nil
end
def self.#{sym}=(obj)
@@#{sym} = obj
end
EOS
unless options[:instance_writer] == false
class_eval(<<-EOS, __FILE__, __LINE__ + 1)
def #{sym}=(obj)
@@#{sym} = obj
end
EOS
end
end
end
def cattr_accessor(*syms)
cattr_reader(*syms)
cattr_writer(*syms)
end
end
Version data entries
109 entries across 79 versions & 7 rubygems