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class Module
# 15.2.2.4.13
def attr_reader(*names)
names.each{|name|
define_method(name){self.instance_variable_get(name)}
}
end
# 15.2.2.4.14
def attr_writer(*names)
names.each{|name|
aset = (name.to_s+"=").intern
define_method(aset){|v|self.instance_variable_set(name,v)}
}
end
# 15.2.2.4.12
def attr_accessor(*names)
attr_reader(*names)
attr_writer(*names)
end
# 15.2.2.4.11
def attr(name)
attr_reader(name)
end
end
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