19 lines
351 B
Plaintext
19 lines
351 B
Plaintext
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:- category(observer).
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:- info([
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version is 1.0,
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author is 'Paulo Moura',
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date is 03/02/09,
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comment is 'Smalltalk dependent protocol.']).
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:- public(update/1).
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:- mode(update(?nonvar), zero_or_one).
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:- info(update/1,
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[comment is 'Called when an observed object is updated.',
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argnames is ['Change']]).
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update(_).
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:- end_category.
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