42 lines
1.2 KiB
Go
42 lines
1.2 KiB
Go
// Copyright (c) 2012-2022 The ANTLR Project. All rights reserved.
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// Use of this file is governed by the BSD 3-clause license that
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// can be found in the LICENSE.txt file in the project root.
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package antlr
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var ATNSimulatorError = NewDFAState(0x7FFFFFFF, NewATNConfigSet(false))
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type IATNSimulator interface {
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SharedContextCache() *PredictionContextCache
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ATN() *ATN
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DecisionToDFA() []*DFA
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}
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type BaseATNSimulator struct {
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atn *ATN
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sharedContextCache *PredictionContextCache
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decisionToDFA []*DFA
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}
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func (b *BaseATNSimulator) getCachedContext(context *PredictionContext) *PredictionContext {
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if b.sharedContextCache == nil {
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return context
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}
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//visited := NewJMap[*PredictionContext, *PredictionContext, Comparator[*PredictionContext]](pContextEqInst, PredictionVisitedCollection, "Visit map in getCachedContext()")
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visited := NewVisitRecord()
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return getCachedBasePredictionContext(context, b.sharedContextCache, visited)
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}
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func (b *BaseATNSimulator) SharedContextCache() *PredictionContextCache {
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return b.sharedContextCache
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}
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func (b *BaseATNSimulator) ATN() *ATN {
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return b.atn
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}
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func (b *BaseATNSimulator) DecisionToDFA() []*DFA {
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return b.decisionToDFA
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}
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