ATNSimulator class abstract

Implementers

• LexerATNSimulator
• ParserATNSimulator

Constructors

ATNSimulator(ATN atn, PredictionContextCache? sharedContextCache)

Properties

atn → ATN

final

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

sharedContextCache → PredictionContextCache?

The context cache maps all PredictionContext objects that are equals() to a single cached copy. This cache is shared across all contexts in all ATNConfigs in all DFA states. We rebuild each ATNConfigSet to use only cached nodes/graphs in addDFAState(). We don't want to fill this during closure() since there are lots of contexts that pop up but are not used ever again. It also greatly slows down closure().

final

Methods

clearDFA() → void

Clear the DFA cache used by the current instance. Since the DFA cache may be shared by multiple ATN simulators, this method may affect the performance (but not accuracy) of other parsers which are being used concurrently.

getCachedContext(PredictionContext context) → PredictionContext

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

reset() → void

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Properties

ERROR → DFAState

Must distinguish between missing edge and edge we know leads nowhere */

final