cc4531cd1e
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@53 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
67 lines
1.2 KiB
Plaintext
67 lines
1.2 KiB
Plaintext
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:- protocol(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 'Common hierarchy protocol for prototype and class hierarchies.']).
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:- public(ancestor/1).
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:- mode(ancestor(?object), zero_or_more).
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:- info(ancestor/1, [
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comment is 'Returns, by backtracking, all object ancestors.',
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argnames is ['Ancestor']]).
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:- public(ancestors/1).
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:- mode(ancestors(-list), one).
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:- info(ancestors/1, [
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comment is 'List of all object ancestors.',
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argnames is ['Ancestors']]).
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:- public(leaf/1).
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:- mode(leaf(?object), zero_or_more).
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:- info(leaf/1, [
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comment is 'Returns, by backtracking, all object leaves.',
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argnames is ['Leaf']]).
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:- public(leaves/1).
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:- mode(leaves(-list), one).
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:- info(leaves/1, [
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comment is 'List of all object leaves.',
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argnames is ['Leaves']]).
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:- public(descendant/1).
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:- mode(descendant(?object), zero_or_more).
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:- info(descendant/1, [
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comment is 'Returns, by backtracking, all object descendants.',
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argnames is ['Descendant']]).
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:- public(descendants/1).
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:- mode(descendants(-list), one).
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:- info(descendants/1, [
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comment is 'List of all object descendants.',
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argnames is ['Descendants']]).
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:- end_protocol.
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