Taken from this answer on StackOverflow
name = "Person"
attributes = [:name, :age]
class MyBaseClass; end
klass = Class.new(MyBaseClass) do
ATTRIBUTES = attributes
attr_accessor *ATTRIBUTES
def initialize(*args)
raise ArgumentError, "Too many arguments" if args.size > ATTRIBUTES.size
ATTRIBUTES.zip(args) do |attr, val|
send "#{attr}=", val
end
end
end
Object.const_set name, klass
Person.new("John Doe", 42) # => #<Person:0x007f934a975830 @name="John Doe", @age=42>