public override IPStmt VisitAnnounceStmt(PParser.AnnounceStmtContext context)
{
IPExpr evtExpr = exprVisitor.Visit(context.expr());
if (IsDefinitelyNullEvent(evtExpr))
{
throw handler.EmittedNullEvent(evtExpr);
}
if (!PrimitiveType.Event.IsAssignableFrom(evtExpr.Type))
{
throw handler.TypeMismatch(context.expr(), evtExpr.Type, PrimitiveType.Event);
}
List <IPExpr> args = (context.rvalueList()?.rvalue().Select(rv => exprVisitor.Visit(rv)) ??
Enumerable.Empty <IPExpr>()).ToList();
return(new AnnounceStmt(context, evtExpr, args.Count == 0 ? null : args[0]));
}
public override IPStmt VisitAnnounceStmt(PParser.AnnounceStmtContext context)
{
if (machine?.IsSpec == true)
{
throw handler.IllegalMonitorOperation(context, context.ANNOUNCE().Symbol, machine);
}
IPExpr evtExpr = exprVisitor.Visit(context.expr());
if (IsDefinitelyNullEvent(evtExpr))
{
throw handler.EmittedNullEvent(evtExpr);
}
if (!PrimitiveType.Event.IsAssignableFrom(evtExpr.Type))
{
throw handler.TypeMismatch(context.expr(), evtExpr.Type, PrimitiveType.Event);
}
List <IPExpr> args = TypeCheckingUtils.VisitRvalueList(context.rvalueList(), exprVisitor).ToList();
return(new AnnounceStmt(context, evtExpr, args.Count == 0 ? null : args[0]));
}
public override object VisitAnnounceStmt(PParser.AnnounceStmtContext context)
{
return(null);
}