protected virtual Handle MakeBlock([NotNull] BlockStartState start, [NotNull] BlockAST blkAST, [NotNull] IList <Handle> alts)
{
start.sll = IsSLLDecision(blkAST);
BlockEndState end = NewState <BlockEndState>(blkAST);
start.endState = end;
foreach (Handle alt in alts)
{
// hook alts up to decision block
Epsilon(start, alt.left);
Epsilon(alt.right, end);
// no back link in ATN so must walk entire alt to see if we can
// strip out the epsilon to 'end' state
TailEpsilonRemover opt = new TailEpsilonRemover(atn);
opt.Visit(alt.left);
}
Handle h = new Handle(start, end);
// FASerializer ser = new FASerializer(g, h.left);
// System.out.println(blkAST.toStringTree()+":\n"+ser);
blkAST.atnState = start;
return(h);
}
