13 lines
292 B
Text
13 lines
292 B
Text
Singleton ::= Object clone tap {
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self id := 0.
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self newID := {
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self id := self id + 1.
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}.
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self clone := {
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err ArgError clone tap { self message := "Singleton object!". } throw.
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}.
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}.
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println: Singleton newID. ; 1
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println: Singleton newID. ; 2
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println: Singleton newID. ; 3
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