private string ScanMemberBody(MemberDecl md)
{
Contract.Requires(md != null);
solution_list.plist.Clear();
Method m = md as Method;
if (m == null)
{
return(null);
}
if (m.Body == null)
{
return(null);
}
List <IVariable> variables = new List <IVariable>();
variables.AddRange(m.Ins);
variables.AddRange(m.Outs);
SolutionList sol_list = new SolutionList();
sol_list.AddRange(solution_list.plist);
if (TacnyOptions.O.ParallelExecution)
{
Parallel.ForEach(m.Body.Body, st =>
{
// register local variables
VarDeclStmt vds = st as VarDeclStmt;
if (vds != null)
{
variables.AddRange(vds.Locals);
}
UpdateStmt us = st as UpdateStmt;
if (us != null)
{
if (tacnyProgram.IsTacticCall(us))
{
try
{
tacnyProgram.SetCurrent(tacnyProgram.GetTactic(us), md);
// get the resolved variables
List <IVariable> resolved = tacnyProgram.GetResolvedVariables(md);
resolved.AddRange(m.Ins); // add input arguments as resolved variables
Atomic.ResolveTactic(tacnyProgram.GetTactic(us), us, md, tacnyProgram, variables, resolved, ref sol_list);
tacnyProgram.CurrentDebug.Fin();
}
catch (AggregateException e)
{
foreach (var err in e.Data)
{
Printer.Error(err.ToString());
}
}
}
}
});
}
else
{
foreach (var st in m.Body.Body)
{
// register local variables
VarDeclStmt vds = st as VarDeclStmt;
if (vds != null)
{
variables.AddRange(vds.Locals);
}
UpdateStmt us = st as UpdateStmt;
if (us != null)
{
if (tacnyProgram.IsTacticCall(us))
{
try
{
tacnyProgram.SetCurrent(tacnyProgram.GetTactic(us), md);
// get the resolved variables
List <IVariable> resolved = tacnyProgram.GetResolvedVariables(md);
resolved.AddRange(m.Ins); // add input arguments as resolved variables
Atomic.ResolveTactic(tacnyProgram.GetTactic(us), us, md, tacnyProgram, variables, resolved, ref sol_list);
tacnyProgram.CurrentDebug.Fin();
}
catch (Exception e)
{
return(e.Message);
}
}
}
}
}
solution_list.AddRange(sol_list.plist);
return(null);
}
private Solution LazyScanMemberBody(MemberDecl md)
{
Contract.Requires(md != null);
Console.WriteLine($"Starting thread: {System.Threading.Thread.CurrentThread.Name}");
Debug.WriteLine($"Scanning member {md.Name} body");
var function = md as Function;
if (function != null)
{
var fun = function;
if (fun.Body == null)
{
return(null);
}
var expt = ExpressionTree.ExpressionToTree(fun.Body);
expt.FindAndResolveTacticApplication(_tacnyProgram, fun);
/* No reason ot generate new solution
* if nothing has been changed
*/
if (!expt.Modified)
{
return(null);
}
var res = expt.TreeToExpression();
var newFun = new Function(fun.tok, fun.Name, fun.HasStaticKeyword, fun.IsProtected, fun.IsGhost, fun.TypeArgs, fun.Formals, fun.ResultType, fun.Req, fun.Reads, fun.Ens, fun.Decreases, res, fun.Attributes, fun.SignatureEllipsis);
var ac = new Atomic {
IsFunction = true,
DynamicContext = { newTarget = newFun }
};
return(new Solution(ac));
}
var m = md as Method;
if (m?.Body == null)
{
return(null);
}
List <IVariable> variables = new List <IVariable>();
List <IVariable> resolved;
lock (_tacnyProgram) {
resolved = _tacnyProgram.GetResolvedVariables(md);
}
variables.AddRange(m.Ins);
variables.AddRange(m.Outs);
resolved.AddRange(m.Ins); // add input arguments as resolved variables
resolved.AddRange(m.Outs);
// does not work for multiple tactic applications
foreach (var st in m.Body.Body)
{
UpdateStmt us = null;
WhileStmt ws = null;
// register local variables
if (st is VarDeclStmt)
{
VarDeclStmt vds = st as VarDeclStmt;
variables.AddRange(vds.Locals);
}
else if (st is UpdateStmt)
{
us = st as UpdateStmt;
}
else if (st is WhileStmt)
{
ws = st as WhileStmt;
us = ws.TacAps as UpdateStmt;
foreach (var wst in ws.Body.Body)
{
if (!(wst is VarDeclStmt))
{
continue;
}
var vds = wst as VarDeclStmt;
variables.AddRange(vds.Locals);
}
}
if (us == null || !_tacnyProgram.IsTacticCall(us))
{
continue;
}
Debug.WriteLine("Tactic call found");
return(ResolveTactic(variables, resolved, us, md, ws));
}
return(null);
}