public static IEnumerable <ProofState> EvalTopLevelTactic(ProofState state, Dictionary <IVariable, Type> variables,
Statement tacticApplication, ApplySuffix aps, ErrorReporterDelegate errorDelegate, bool ifPartial)
{
Contract.Requires <ArgumentNullException>(Tcce.NonNull(variables));
Contract.Requires <ArgumentNullException>(Tcce.NonNull(tacticApplication));
Contract.Requires <ArgumentNullException>(state != null, "state");
Contract.Requires(tacticApplication == null ||
tacticApplication is UpdateStmt || tacticApplication is InlineTacticBlockStmt);
IEnumerable <ProofState> branches;
if (state.InitState(tacticApplication, aps, variables, ifPartial) == false)
{
return(null);
}
#if !TACNY_DEBUG
try {
#endif
if (state.GetErrHandler().Reporter.Count(ErrorLevel.Error) != 0)
{
var errs = CompoundErrorInformation.GenerateErrorInfoList(state);
if (errorDelegate != null)
{
foreach (var err in errs)
{
errorDelegate(err);
}
}
return(null);
}
branches = GenerateSolution(state, errorDelegate);
#if !TACNY_DEBUG
}
catch (Exception e) {
String msg;
List <CompoundErrorInformation> errs;
try {
msg = "Tactic unknown exception: " + e.Message;
errs = CompoundErrorInformation.GenerateErrorInfoList(state, msg);
} catch (Exception) {
msg = "Tactic exception";
errs = new List <CompoundErrorInformation>();
}
if (errorDelegate != null)
{
foreach (var err in errs)
{
errorDelegate(err);
}
}
return(null);
}
#endif
return(branches);
}
