Package org.antlr.v4.runtime.atn

Interface Summary

Interface	Description
LexerAction	Represents a single action which can be executed following the successful match of a lexer rule.

Class Summary

Class	Description
AbstractPredicateTransition
ActionTransition
AmbiguityInfo	This class represents profiling event information for an ambiguity.
ArrayPredictionContext
ATN
ATNConfig	A tuple: (ATN state, predicted alt, syntactic, semantic context).
ATNConfigSet	Specialized Set<ATNConfig> that can track info about the set, with support for combining similar configurations using a graph-structured stack.
ATNConfigSet.AbstractConfigHashSet
ATNConfigSet.ConfigEqualityComparator
ATNConfigSet.ConfigHashSet	The reason that we need this is because we don't want the hash map to use the standard hash code and equals.
ATNDeserializationOptions
ATNDeserializer
ATNSerializer
ATNSimulator
ATNState	The following images show the relation of states and ATNState.transitions for various grammar constructs.
AtomTransition	TODO: make all transitions sets? no, should remove set edges
BasicBlockStartState
BasicState
BlockEndState	Terminal node of a simple (a|b|c) block.
BlockStartState	The start of a regular (...) block.
CodePointTransitions	Utility class to create AtomTransition, RangeTransition, and SetTransition appropriately based on the range of the input.
ContextSensitivityInfo	This class represents profiling event information for a context sensitivity.
DecisionEventInfo	This is the base class for gathering detailed information about prediction events which occur during parsing.
DecisionInfo	This class contains profiling gathered for a particular decision.
DecisionState
EmptyPredictionContext
EpsilonTransition
ErrorInfo	This class represents profiling event information for a syntax error identified during prediction.
LexerActionExecutor	Represents an executor for a sequence of lexer actions which traversed during the matching operation of a lexer rule (token).
LexerATNConfig
LexerATNSimulator	"dup" of ParserInterpreter
LexerATNSimulator.SimState	When we hit an accept state in either the DFA or the ATN, we have to notify the character stream to start buffering characters via IntStream.mark() and record the current state.
LexerChannelAction	Implements the channel lexer action by calling Lexer.setChannel(int) with the assigned channel.
LexerCustomAction	Executes a custom lexer action by calling Recognizer.action(org.antlr.v4.runtime.RuleContext, int, int) with the rule and action indexes assigned to the custom action.
LexerIndexedCustomAction	This implementation of LexerAction is used for tracking input offsets for position-dependent actions within a LexerActionExecutor.
LexerModeAction	Implements the mode lexer action by calling Lexer.mode(int) with the assigned mode.
LexerMoreAction	Implements the more lexer action by calling Lexer.more().
LexerPopModeAction	Implements the popMode lexer action by calling Lexer.popMode().
LexerPushModeAction	Implements the pushMode lexer action by calling Lexer.pushMode(int) with the assigned mode.
LexerSkipAction	Implements the skip lexer action by calling Lexer.skip().
LexerTypeAction	Implements the type lexer action by calling Lexer.setType(int) with the assigned type.
LL1Analyzer
LookaheadEventInfo	This class represents profiling event information for tracking the lookahead depth required in order to make a prediction.
LoopEndState	Mark the end of a * or + loop.
NotSetTransition
OrderedATNConfigSet
OrderedATNConfigSet.LexerConfigHashSet
ParseInfo	This class provides access to specific and aggregate statistics gathered during profiling of a parser.
ParserATNSimulator	The embodiment of the adaptive LL(*), ALL(*), parsing strategy.
PlusBlockStartState	Start of (A|B|...)+ loop.
PlusLoopbackState	Decision state for A+ and (A|B)+.
PrecedencePredicateTransition
PredicateEvalInfo	This class represents profiling event information for semantic predicate evaluations which occur during prediction.
PredicateTransition	TODO: this is old comment: A tree of semantic predicates from the grammar AST if label==SEMPRED.
PredictionContext
PredictionContextCache	Used to cache PredictionContext objects.
ProfilingATNSimulator
RangeTransition
RuleStartState
RuleStopState	The last node in the ATN for a rule, unless that rule is the start symbol.
RuleTransition
SemanticContext	A tree structure used to record the semantic context in which an ATN configuration is valid.
SemanticContext.AND	A semantic context which is true whenever none of the contained contexts is false.
SemanticContext.Operator	This is the base class for semantic context "operators", which operate on a collection of semantic context "operands".
SemanticContext.OR	A semantic context which is true whenever at least one of the contained contexts is true.
SemanticContext.PrecedencePredicate
SemanticContext.Predicate
SetTransition	A transition containing a set of values.
SingletonPredictionContext
StarBlockStartState	The block that begins a closure loop.
StarLoopbackState
StarLoopEntryState
TokensStartState	The Tokens rule start state linking to each lexer rule start state
Transition	An ATN transition between any two ATN states.
WildcardTransition

Enum Summary

Enum	Description
ATNType	Represents the type of recognizer an ATN applies to.
LexerActionType	Represents the serialization type of a LexerAction.
PredictionMode	This enumeration defines the prediction modes available in ANTLR 4 along with utility methods for analyzing configuration sets for conflicts and/or ambiguities.