Package org.antlr.v4.runtime.atn

Class ATNDeserializer

java.lang.Object

org.antlr.v4.runtime.atn.ATNDeserializer

public class ATNDeserializer
extends java.lang.Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static interface	ATNDeserializer.UnicodeDeserializer
(package private) static class	ATNDeserializer.UnicodeDeserializingMode

Field Summary

Fields

Modifier and Type	Field	Description
private static java.util.UUID	ADDED_LEXER_ACTIONS	This UUID indicates an extension of ADDED_PRECEDENCE_TRANSITIONS for the addition of lexer actions encoded as a sequence of LexerAction instances.
private static java.util.UUID	ADDED_PRECEDENCE_TRANSITIONS	This UUID indicates an extension of BASE_SERIALIZED_UUID for the addition of precedence predicates.
private static java.util.UUID	ADDED_UNICODE_SMP	This UUID indicates the serialized ATN contains two sets of IntervalSets, where the second set's values are encoded as 32-bit integers to support the full Unicode SMP range up to U+10FFFF.
private static java.util.UUID	BASE_SERIALIZED_UUID	This is the earliest supported serialized UUID.
private ATNDeserializationOptions	deserializationOptions
static java.util.UUID	SERIALIZED_UUID	This is the current serialized UUID.
static int	SERIALIZED_VERSION
private static java.util.List<java.util.UUID>	SUPPORTED_UUIDS	This list contains all of the currently supported UUIDs, ordered by when the feature first appeared in this branch.

Constructor Summary

Constructors

Constructor	Description
ATNDeserializer()
ATNDeserializer(ATNDeserializationOptions deserializationOptions)

Method Summary

Modifier and Type	Method	Description
protected void	checkCondition(boolean condition)
protected void	checkCondition(boolean condition, java.lang.String message)
ATN	deserialize(char[] data)
private int	deserializeSets(char[] data, int p, java.util.List<IntervalSet> sets, ATNDeserializer.UnicodeDeserializer unicodeDeserializer)
protected Transition	edgeFactory(ATN atn, int type, int src, int trg, int arg1, int arg2, int arg3, java.util.List<IntervalSet> sets)
(package private) static ATNDeserializer.UnicodeDeserializer	getUnicodeDeserializer(ATNDeserializer.UnicodeDeserializingMode mode)
protected static boolean	isFeatureSupported(java.util.UUID feature, java.util.UUID actualUuid)	Determines if a particular serialized representation of an ATN supports a particular feature, identified by the UUID used for serializing the ATN at the time the feature was first introduced.
protected LexerAction	lexerActionFactory(LexerActionType type, int data1, int data2)
protected void	markPrecedenceDecisions(ATN atn)	Analyze the StarLoopEntryState states in the specified ATN to set the StarLoopEntryState.isPrecedenceDecision field to the correct value.
protected ATNState	stateFactory(int type, int ruleIndex)
protected static int	toInt(char c)
protected static int	toInt32(char[] data, int offset)
protected static long	toLong(char[] data, int offset)
protected static java.util.UUID	toUUID(char[] data, int offset)
protected void	verifyATN(ATN atn)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

SERIALIZED_VERSION

public static final int SERIALIZED_VERSION

BASE_SERIALIZED_UUID

private static final java.util.UUID BASE_SERIALIZED_UUID

This is the earliest supported serialized UUID.

ADDED_PRECEDENCE_TRANSITIONS

private static final java.util.UUID ADDED_PRECEDENCE_TRANSITIONS

This UUID indicates an extension of BASE_SERIALIZED_UUID for the addition of precedence predicates.

ADDED_LEXER_ACTIONS

private static final java.util.UUID ADDED_LEXER_ACTIONS

This UUID indicates an extension of ADDED_PRECEDENCE_TRANSITIONS for the addition of lexer actions encoded as a sequence of LexerAction instances.

ADDED_UNICODE_SMP

private static final java.util.UUID ADDED_UNICODE_SMP

This UUID indicates the serialized ATN contains two sets of IntervalSets, where the second set's values are encoded as 32-bit integers to support the full Unicode SMP range up to U+10FFFF.

SUPPORTED_UUIDS

private static final java.util.List<java.util.UUID> SUPPORTED_UUIDS

This list contains all of the currently supported UUIDs, ordered by when the feature first appeared in this branch.

SERIALIZED_UUID

public static final java.util.UUID SERIALIZED_UUID

This is the current serialized UUID.

deserializationOptions

private final ATNDeserializationOptions deserializationOptions

Constructor Detail

ATNDeserializer

public ATNDeserializer()

ATNDeserializer

public ATNDeserializer(ATNDeserializationOptions deserializationOptions)

Method Detail

getUnicodeDeserializer

static ATNDeserializer.UnicodeDeserializer getUnicodeDeserializer(ATNDeserializer.UnicodeDeserializingMode mode)

isFeatureSupported

protected static boolean isFeatureSupported(java.util.UUID feature,
                                            java.util.UUID actualUuid)

Determines if a particular serialized representation of an ATN supports a particular feature, identified by the UUID used for serializing the ATN at the time the feature was first introduced.

Parameters:

feature - The UUID marking the first time the feature was supported in the serialized ATN.

actualUuid - The UUID of the actual serialized ATN which is currently being deserialized.

Returns:

true if the actualUuid value represents a serialized ATN at or after the feature identified by feature was introduced; otherwise, false.

deserialize

public ATN deserialize(char[] data)

deserializeSets

private int deserializeSets(char[] data,
                            int p,
                            java.util.List<IntervalSet> sets,
                            ATNDeserializer.UnicodeDeserializer unicodeDeserializer)

markPrecedenceDecisions

protected void markPrecedenceDecisions(ATN atn)

Analyze the StarLoopEntryState states in the specified ATN to set the StarLoopEntryState.isPrecedenceDecision field to the correct value.

Parameters:

atn - The ATN.

verifyATN

protected void verifyATN(ATN atn)

checkCondition

protected void checkCondition(boolean condition)

checkCondition

protected void checkCondition(boolean condition,
                              java.lang.String message)

toInt

protected static int toInt(char c)

toInt32

protected static int toInt32(char[] data,
                             int offset)

toLong

protected static long toLong(char[] data,
                             int offset)

toUUID

protected static java.util.UUID toUUID(char[] data,
                                       int offset)

edgeFactory

protected Transition edgeFactory(ATN atn,
                                 int type,
                                 int src,
                                 int trg,
                                 int arg1,
                                 int arg2,
                                 int arg3,
                                 java.util.List<IntervalSet> sets)

stateFactory

protected ATNState stateFactory(int type,
                                int ruleIndex)

lexerActionFactory

protected LexerAction lexerActionFactory(LexerActionType type,
                                         int data1,
                                         int data2)