private static LookaheadSymbolSet TotalLookahead(LRConfig Config)
{
bool flag;
LookaheadSymbolSet set = new LookaheadSymbolSet();
for (int i = 0; (i < Config.CheckaheadCount()) & !flag; i++)
{
short offset = (short)i;
i = offset;
SymbolBuild build = Config.Checkahead(offset);
ConfigTrackSource source = (ConfigTrackSource)Conversions.ToInteger(Interaction.IIf(build.Type == SymbolType.Nonterminal, ConfigTrackSource.First, ConfigTrackSource.Config));
int num4 = build.First.Count() - 1;
for (int j = 0; j <= num4; j++)
{
LookaheadSymbol item = new LookaheadSymbol(build.First[j]);
if (item.Parent.Type != SymbolType.Nonterminal)
{
item.Configs.Add(new ConfigTrack(Config, source));
set.Add(item);
}
}
flag = !build.Nullable;
}
if (!flag)
{
set.UnionWith(Config.LookaheadSet);
}
return(set);
}
private static bool PopulateLookahead(LRConfig Config)
{
if (Config.InheritLookahead)
{
bool flag = false;
for (short i = 0; (i < Config.CheckaheadCount()) & !flag; i = (short)(i + 1))
{
flag = !Config.Checkahead(i).Nullable;
}
return(!flag);
}
return(false);
}
