cc4531cd1e
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@53 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
32 lines
532 B
Plaintext
32 lines
532 B
Plaintext
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:- protocol(proto_hierarchyp,
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extends(hierarchyp)).
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:- info([
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version is 1.0,
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authors is 'Paulo Moura',
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date is 2000/7/24,
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comment is 'Prototype hierarchy protocol.']).
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:- public(parent/1).
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:- mode(parent(?object), zero_or_more).
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:- info(parent/1, [
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comment is 'Returns, by backtracking, all object parents.',
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argnames is ['Parent']]).
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:- public(parents/1).
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:- mode(parents(-list), one).
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:- info(parents/1, [
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comment is 'List of all object parents.',
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argnames is ['Parents']]).
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:- end_protocol.
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