public override bool Rewrite(IGraphProcessingEnvironment procEnv, IMatches matches, IMatch chosenMatch)
{
CountResult.SetVariableValue(matches.Count, procEnv);
if(matches.Count == 0) return false;
if(Test) return false;
procEnv.Finishing(matches, Special);
#if DEBUGACTIONS || MATCHREWRITEDETAIL
procEnv.PerformanceInfo.StartLocal();
#endif
object[] retElems = null;
IEnumerator<IMatch> matchesEnum = matches.GetEnumerator();
while(matchesEnum.MoveNext())
{
IMatch match = matchesEnum.Current;
if(match != matches.First) procEnv.RewritingNextMatch();
retElems = matches.Producer.Modify(procEnv, match);
procEnv.PerformanceInfo.RewritesPerformed++;
}
if(retElems == null) retElems = NoElems;
for(int i = 0; i < ParamBindings.ReturnVars.Length; i++)
ParamBindings.ReturnVars[i].SetVariableValue(retElems[i], procEnv);
#if DEBUGACTIONS || MATCHREWRITEDETAIL
procEnv.PerformanceInfo.StopRewrite(); // total rewrite time does NOT include listeners anymore
#endif
procEnv.Finished(matches, Special);
#if LOG_SEQUENCE_EXECUTION
procEnv.Recorder.WriteLine("Matched/Applied " + Symbol);
procEnv.Recorder.Flush();
#endif
return true;
}
public override bool Rewrite(IGraphProcessingEnvironment procEnv, IMatches matches, IMatch chosenMatch)
{
if (matches.Count == 0) return false;
if (Test) return false;
if (MinSpecified)
{
if(!(MinVarChooseRandom.GetVariableValue(procEnv) is int))
throw new InvalidOperationException("The variable '" + MinVarChooseRandom + "' is not of type int!");
if(matches.Count < (int)MinVarChooseRandom.GetVariableValue(procEnv))
return false;
}
procEnv.Finishing(matches, Special);
#if DEBUGACTIONS || MATCHREWRITEDETAIL
procEnv.PerformanceInfo.StartLocal();
#endif
object[] retElems = null;
if (!ChooseRandom)
{
if (chosenMatch!=null)
throw new InvalidOperationException("Chosen match given although all matches should get rewritten");
IEnumerator<IMatch> matchesEnum = matches.GetEnumerator();
while (matchesEnum.MoveNext())
{
IMatch match = matchesEnum.Current;
if (match != matches.First) procEnv.RewritingNextMatch();
retElems = matches.Producer.Modify(procEnv, match);
procEnv.PerformanceInfo.RewritesPerformed++;
}
if (retElems == null) retElems = NoElems;
}
else
{
object val = MaxVarChooseRandom != null ? MaxVarChooseRandom.GetVariableValue(procEnv) : (MinSpecified ? 2147483647 : 1);
if (!(val is int))
throw new InvalidOperationException("The variable '" + MaxVarChooseRandom.Name + "' is not of type int!");
int numChooseRandom = (int)val;
if (matches.Count < numChooseRandom) numChooseRandom = matches.Count;
for (int i = 0; i < numChooseRandom; i++)
{
if (i != 0) procEnv.RewritingNextMatch();
int matchToApply = randomGenerator.Next(matches.Count);
if (Choice) matchToApply = procEnv.UserProxy.ChooseMatch(matchToApply, matches, numChooseRandom - 1 - i, this);
IMatch match = matches.RemoveMatch(matchToApply);
if (chosenMatch != null) match = chosenMatch;
retElems = matches.Producer.Modify(procEnv, match);
procEnv.PerformanceInfo.RewritesPerformed++;
}
if (retElems == null) retElems = NoElems;
}
for(int i = 0; i < ParamBindings.ReturnVars.Length; i++)
ParamBindings.ReturnVars[i].SetVariableValue(retElems[i], procEnv);
#if DEBUGACTIONS || MATCHREWRITEDETAIL
procEnv.PerformanceInfo.StopRewrite(); // total rewrite time does NOT include listeners anymore
#endif
procEnv.Finished(matches, Special);
#if LOG_SEQUENCE_EXECUTION
procEnv.Recorder.WriteLine("Matched/Applied " + Symbol);
procEnv.Recorder.Flush();
#endif
return true;
}