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Versions: 270
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Contents
class Module
# Declares an attribute reader backed by an internally-named instance variable.
def attr_internal_reader(*attrs)
attrs.each {|attr_name| attr_internal_define(attr_name, :reader)}
end
# Declares an attribute writer backed by an internally-named instance variable.
def attr_internal_writer(*attrs)
attrs.each {|attr_name| attr_internal_define(attr_name, :writer)}
end
# Declares an attribute reader and writer backed by an internally-named instance
# variable.
def attr_internal_accessor(*attrs)
attr_internal_reader(*attrs)
attr_internal_writer(*attrs)
end
alias_method :attr_internal, :attr_internal_accessor
class << self; attr_accessor :attr_internal_naming_format end
self.attr_internal_naming_format = '@_%s'
private
def attr_internal_ivar_name(attr)
Module.attr_internal_naming_format % attr
end
def attr_internal_define(attr_name, type)
internal_name = attr_internal_ivar_name(attr_name).sub(/\A@/, '')
class_eval do # class_eval is necessary on 1.9 or else the methods a made private
# use native attr_* methods as they are faster on some Ruby implementations
send("attr_#{type}", internal_name)
end
attr_name, internal_name = "#{attr_name}=", "#{internal_name}=" if type == :writer
alias_method attr_name, internal_name
remove_method internal_name
end
end
Version data entries
270 entries across 226 versions & 25 rubygems