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6
Task/Singleton/Racket/singleton-1.rkt
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6
Task/Singleton/Racket/singleton-1.rkt
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#lang racket
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(provide instance)
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(define singleton%
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(class object%
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(super-new)))
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(define instance (new singleton%))
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6
Task/Singleton/Racket/singleton-2.rkt
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Task/Singleton/Racket/singleton-2.rkt
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#lang racket
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(provide instance)
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(define instance
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(new (class object%
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(define/public (foo) 123)
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(super-new))))
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