9 lines
416 B
Smalltalk
9 lines
416 B
Smalltalk
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accessing
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ifEmpty: aBlock
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"Evaluate the given block, answering its value if the receiver is empty, otherwise answer the receiver."
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"Note that the fact that this method returns its receiver in case the receiver is not empty allows one to write expressions like the following ones: self classifyMethodAs: (myProtocol ifEmpty: ['As yet unclassified'])"
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^ self isEmpty
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ifTrue: [ aBlock value ]
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ifFalse: [ self ]
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