org.antlr.v4.automata

Class ATNSerializer

java.lang.Object

org.antlr.v4.automata.ATNSerializer

public class ATNSerializer
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
ATN	atn
Grammar	g
List<IntervalSet>	sets

Constructor Summary

Constructors

Constructor and Description
ATNSerializer(Grammar g, ATN atn)

Method Summary

Methods

Modifier and Type	Method and Description
String	decode(char[] data)
static String	getDecoded(Grammar g, ATN atn)
static IntegerList	getSerialized(Grammar g, ATN atn)
static char[]	getSerializedAsChars(Grammar g, ATN atn)
static String	getSerializedAsString(Grammar g, ATN atn) Used by Java target to encode short/int array as chars in string.
String	getTokenName(int t)
IntegerList	serialize() Serialize state descriptors, edge descriptors, and decision->state map into list of ints: grammar-type, (ANTLRParser.LEXER, ...) max token type, num states, state-0-type ruleIndex, state-1-type ruleIndex, ...

Methods inherited from class java.lang.Object

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

Field Detail

g

public Grammar g

atn

public ATN atn

sets

public List<IntervalSet> sets

Constructor Detail

ATNSerializer

public ATNSerializer(Grammar g,
             ATN atn)

Method Detail

serialize

public IntegerList serialize()

Serialize state descriptors, edge descriptors, and decision->state map into list of ints: grammar-type, (ANTLRParser.LEXER, ...) max token type, num states, state-0-type ruleIndex, state-1-type ruleIndex, ... state-i-type ruleIndex optional-arg ... num rules, rule-1-start-state rule-1-args, rule-2-start-state rule-2-args, ... (args are token type,actionIndex in lexer else 0,0) num modes, mode-0-start-state, mode-1-start-state, ... (parser has 0 modes) num sets set-0-interval-count intervals, set-1-interval-count intervals, ... num total edges, src, trg, edge-type, edge arg1, optional edge arg2 (present always), ... num decisions, decision-0-start-state, decision-1-start-state, ... Convenient to pack into unsigned shorts to make as Java string.

decode

public String decode(char[] data)

getTokenName

public String getTokenName(int t)

getSerializedAsString

public static String getSerializedAsString(Grammar g,
                           ATN atn)

Used by Java target to encode short/int array as chars in string.

getSerialized

public static IntegerList getSerialized(Grammar g,
                        ATN atn)

getSerializedAsChars

public static char[] getSerializedAsChars(Grammar g,
                          ATN atn)

getDecoded

public static String getDecoded(Grammar g,
                ATN atn)