public override IEnumerable <ProofState> EvalInit(Statement statement, ProofState state)
{
if (statement is InlineTacticBlockStmt)
{
var inline = statement as InlineTacticBlockStmt;
//check whether the tactic name is fresh
bool isFresh = !(state.Tactics.ContainsKey(inline.name) ||
state.ContainInlineTactic(inline.name) ||
state.Members.ContainsKey(inline.name));
if (isFresh)
{
state.AddInlineTactic(inline.name, inline);
var frameCtrl = new DefaultTacticFrameCtrl();
frameCtrl.InitBasicFrameCtrl(inline.Body.Body, state.IsCurFramePartial(), null, VerifyN);
state.AddNewFrame(frameCtrl);
yield return(state);
}
else
{
state.ReportTacticError(statement.Tok, "Duplicated inline tactic name.");
}
}
else if (statement is UpdateStmt)
{
var aps = ((ExprRhs)((UpdateStmt)statement).Rhss[0]).Expr as ApplySuffix;
//inline tactic is not supposed to have any args
if (aps.Args == null || aps.Args.Count == 0)
{
var inline = state.GetInlineTactic(Util.GetSignature(aps));
var frameCtrl = new DefaultTacticFrameCtrl();
frameCtrl.InitBasicFrameCtrl(inline.Body.Body, state.IsCurFramePartial(), null, VerifyN);
state.AddNewFrame(frameCtrl);
yield return(state);
}
else
{
state.ReportTacticError(statement.Tok, "No argument is allowed in inline tactics.");
}
}
}