Class LL1DFA

java.lang.Object
org.antlr.analysis.DFA
org.antlr.analysis.LL1DFA

public class LL1DFA extends DFA
A special DFA that is exactly LL(1) or LL(1) with backtracking mode predicates to resolve edge set collisions.
  • Constructor Details

    • LL1DFA

      public LL1DFA(int decisionNumber, NFAState decisionStartState, LookaheadSet[] altLook)
      From list of lookahead sets (one per alt in decision), create an LL(1) DFA. One edge per set. s0-{alt1}->:o=>1 | \ | -{alt2}->:o=>2 | ...
    • LL1DFA

      public LL1DFA(int decisionNumber, NFAState decisionStartState, MultiMap<IntervalSet,Integer> edgeMap)
      From a set of edgeset->list-of-alts mappings, create a DFA that uses syn preds for all |list-of-alts|>1.
  • Method Details