Logtalk 2.30.1 files.

git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1903 b08c6af1-5177-4d33-ba66-4b1c6b8b522a

Logtalk/examples/benchmarks/objects.lgt

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+
+:- object(object,
+	imports(category)).
+
+	:- info([
+		version is 3.0,
+		author is 'Paulo Moura',
+		date is 2007/06/11,
+		comment is 'Example object for benchmarking library predicate calls and imported category predicate calls.']).
+
+	:- public(length/2).
+
+	length(List, Length) :-
+		length(List, 0, Length).
+
+	length([], Length, Length).
+	length([_| Tail], Acc, Length) :-
+		Acc2 is Acc + 1,
+		length(Tail, Acc2, Length).
+
+	:- public(ctg_self/0).
+
+	% call an imported category predicate by sending a message to self;
+	% performance will depend on the distance between "self" and "this"
+	% (always uses dynamic binding)
+	ctg_self :-
+		::ctg_pred.
+
+	:- public(ctg_direct/0).
+
+	% call an imported category predicate directly by using the :/1 control construct;
+	% (static binding may be used, depending on how the category is compiled)
+	ctg_direct :-
+		:ctg_pred.
+
+:- end_object.
+
+
+:- object(descendant,
+	extends(object)).
+
+	:- info([
+		version is 1.0,
+		author is 'Paulo Moura',
+		date is 2007/04/17,
+		comment is 'Example object used for simulating a small hierarchy.']).
+
+:- end_object.
+
+
+:- object(leaf,
+	extends(descendant)).
+
+	:- info([
+		version is 1.0,
+		author is 'Paulo Moura',
+		date is 2007/04/17,
+		comment is 'Example object used for simulating a small hierarchy.']).
+
+:- end_object.