From 323ada012d3bed0c6f7a6d5d0ee14b409b7457c7 Mon Sep 17 00:00:00 2001
From: Charles Krinke
Date: Wed, 13 Aug 2008 14:13:49 +0000
Subject: Mantis#1931. Thank you kindly, Kinoc for a patch that: * Yield Prolog
 1.0.1 Released : it passes all but 9 of the 421 tests in the ISO Prolog test
 suite (97.8%) . * support dynamic predicates and rules. * support 'import' to
 use external static functions improves connection to C# functions * Matches
 Yield Prolog r831

---
 .../Region/ScriptEngine/Shared/Api/Runtime/YieldProlog/Functor.cs | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'OpenSim/Region/ScriptEngine/Shared/Api/Runtime/YieldProlog/Functor.cs')

diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/YieldProlog/Functor.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/YieldProlog/Functor.cs
index 8ef8de0..4d65f5b 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/YieldProlog/Functor.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/YieldProlog/Functor.cs
@@ -98,6 +98,14 @@ namespace OpenSim.Region.ScriptEngine.Shared.YieldProlog
             return make(Atom.a(name), args);
         }
 
+        /// <summary>
+        /// If arg is another Functor, then succeed (yield once) if this and arg have the
+        /// same name and all functor args unify, otherwise fail (don't yield).
+        /// If arg is a Variable, then call its unify to unify with this.
+        /// Otherwise fail (don't yield).
+        /// </summary>
+        /// <param name="arg"></param>
+        /// <returns></returns>
         public IEnumerable<bool> unify(object arg)
         {
             arg = YP.getValue(arg);
-- 
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