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Contents
module ASIR
# !SLIDE
# Addtional Data
#
# Support additional data attached to any object.
module AdditionalData
def _additional_data; @additional_data; end
def additional_data
@additional_data || EMPTY_HASH
end
def additional_data!
@additional_data ||= { }
end
def additional_data= x
@additional_data = x
end
def [] key
@additional_data && @additional_data[key]
end
def []= key, value
(@additional_data ||= { })[key] = value
end
def self.included target
super
target.extend(ModuleMethods)
end
module ModuleMethods
# Provide a getter method that delegates to addtional_data[...].
def addit_getter *names
names.each do | name |
name = name.to_sym
define_method(name) { | | self[name] }
end
end
# Provide getter and setter methods that delegate to addtional_data[...].
def addit_accessor *names
addr_getter *names
names.each do | name |
name = name.to_sym
define_method(:"#{name}=") { | v | self[name] = v }
end
end
end
end
# !SLIDE END
end
Version data entries
11 entries across 11 versions & 1 rubygems