public override Choice GetEBNFBlock(GrammarAST ebnfRoot, IList <CodeBlockForAlt> alts)
{
if (!g.tool.force_atn)
{
int decision;
if (ebnfRoot.Type == ANTLRParser.POSITIVE_CLOSURE)
{
decision = ((PlusLoopbackState)ebnfRoot.atnState).decision;
}
else if (ebnfRoot.Type == ANTLRParser.CLOSURE)
{
decision = ((StarLoopEntryState)ebnfRoot.atnState).decision;
}
else
{
decision = ((DecisionState)ebnfRoot.atnState).decision;
}
if (AnalysisPipeline.Disjoint(g.decisionLOOK[decision]))
{
return(GetLL1EBNFBlock(ebnfRoot, alts));
}
}
return(GetComplexEBNFBlock(ebnfRoot, alts));
}
public override Choice GetChoiceBlock(BlockAST blkAST, IList <CodeBlockForAlt> alts, GrammarAST labelAST)
{
int decision = ((DecisionState)blkAST.atnState).decision;
Choice c;
if (!g.tool.force_atn && AnalysisPipeline.Disjoint(g.decisionLOOK[decision]))
{
c = GetLL1ChoiceBlock(blkAST, alts);
}
else
{
c = GetComplexChoiceBlock(blkAST, alts);
}
if (labelAST != null)
{ // for x=(...), define x or x_list
string label = labelAST.Text;
Decl d = GetTokenLabelDecl(label);
c.label = d;
GetCurrentRuleFunction().AddContextDecl(labelAST.GetAltLabel(), d);
if (labelAST.Parent.Type == ANTLRParser.PLUS_ASSIGN)
{
string listLabel = GetTarget().GetListLabel(label);
TokenListDecl l = new TokenListDecl(this, listLabel);
GetCurrentRuleFunction().AddContextDecl(labelAST.GetAltLabel(), l);
}
}
return(c);
}