private List <Statement> FindSingleTacticApplication(MemberDecl target, UpdateStmt chosenTacticCall)
{
Contract.Requires(tcce.NonNull(target));
_frame = new Stack <Dictionary <IVariable, Type> >();
var method = target as Method;
if (method == null)
{
return(null);
}
_state.SetTopLevelClass(method.EnclosingClass?.Name);
_state.TargetMethod = target;
var dict = method.Ins.Concat(method.Outs)
.ToDictionary <IVariable, IVariable, Type>(item => item, item => item.Type);
_frame.Push(dict);
SearchBlockStmt(method.Body);
_frame.Pop();
Contract.Assert(_frame.Count == 0);
return((from r in _resultList
where r.Key.Tok.pos == chosenTacticCall.Tok.pos
select r.Value).FirstOrDefault());
}
private MemberDecl EvalTacticApplication(MemberDecl target, Resolver r)
{
Contract.Requires(tcce.NonNull(target));
// initialize new stack for variables
_frame = new Stack <Dictionary <IVariable, Type> >();
var method = target as Method;
if (method != null)
{
_state.SetTopLevelClass(method.EnclosingClass?.Name);
_state.TargetMethod = target;
var dict = method.Ins.Concat(method.Outs)
.ToDictionary <IVariable, IVariable, Type>(item => item, item => item.Type);
_frame.Push(dict);
var pre_res = _resultList.Keys.Copy();
SearchBlockStmt(method.Body);
dict = _frame.Pop();
// sanity check
Contract.Assert(_frame.Count == 0);
var new_rets = _resultList.Where(kvp => !pre_res.Contains(kvp.Key)).ToDictionary(i => i.Key, i => i.Value);
Contract.Assert(new_rets.Count != 0);
var body = Util.InsertCode(_state, new_rets);
method.Body.Body.Clear();
if (body != null)
{
method.Body.Body.AddRange(body.Body);
}
// use the original resolver of the resoved program, as it contains all the necessary type info
//TODO: how about pre and post ??
method.CallsTactic = false; // set the tactic call lable to be false, no actual consequence
// set the current class in the resolver, so that it can refer to the memberdecl correctly
r.SetCurClass(method.EnclosingClass as ClassDecl);
r.ResolveMethodBody(method);
//Console.WriteLine("Errors: " + _program.reporter.Count(ErrorLevel.Error));
}
return(method);
}