com.oracle.truffle.regex.tregex.nodes.nfa

Class TRegexNFAExecutorNode

java.lang.Object

com.oracle.truffle.api.nodes.Node

com.oracle.truffle.regex.tregex.nodes.TRegexExecutorBaseNode

com.oracle.truffle.regex.tregex.nodes.TRegexExecutorNode

com.oracle.truffle.regex.tregex.nodes.nfa.TRegexNFAExecutorNode

All Implemented Interfaces:

com.oracle.truffle.api.instrumentation.InstrumentableNode, com.oracle.truffle.api.nodes.NodeInterface, Cloneable

public final class TRegexNFAExecutorNode
extends TRegexExecutorNode

This regex executor matches a given expression by calculating DFA states from the NFA on the fly, without any caching. It is used as a placeholder for TRegexDFAExecutorNode until the expression is executed TRegexOptions.TRegexGenerateDFAThresholdCalls times, in order to avoid the costly DFA generation on all expressions that are not on any hot code paths.

Nested Class Summary

Nested classes/interfaces inherited from class com.oracle.truffle.api.nodes.Node

com.oracle.truffle.api.nodes.Node.Child, com.oracle.truffle.api.nodes.Node.Children

Nested classes/interfaces inherited from interface com.oracle.truffle.api.instrumentation.InstrumentableNode

com.oracle.truffle.api.instrumentation.InstrumentableNode.WrapperNode

Method Summary

Modifier and Type	Method and Description
static TRegexNFAExecutorNode	create(NFA nfa)
TRegexExecutorLocals	createLocals(Object input, int fromIndex, int index, int maxIndex)
Object	execute(com.oracle.truffle.api.frame.VirtualFrame frame, TRegexExecutorLocals abstractLocals, com.oracle.truffle.api.strings.TruffleString.CodeRange codeRange, boolean tString)
String	getName()
NFA	getNFA()
boolean	isForward()
void	notifyDfaGeneratorBailedOut()
TRegexNFAExecutorNode	shallowCopy()
boolean	writesCaptureGroups() Returns true if this executor may write any new capture group boundaries.

Methods inherited from class com.oracle.truffle.regex.tregex.nodes.TRegexExecutorNode

countUpTo, getAstralProfile, getBMPProfile, getEncoding, getInputLength, getMaxIndex, getMinIndex, getNumberOfCaptureGroups, getNumberOfTransitions, getSource, inputAdvance, inputAtBegin, inputAtEnd, inputHasNext, inputHasNext, inputHasNext, inputHasNext, inputIncNextIndexRaw, inputIncNextIndexRaw, inputIncRaw, inputIncRaw, inputIncRaw, inputIncRaw, inputIncRaw, inputIncRaw, inputIncRaw, inputIncRaw, inputReadAndDecode, inputReadAndDecode, inputReadRaw, inputReadRaw, inputReadRaw, inputReadRaw, inputSkip, inputSkipIntl, inputSkipReverse, inputUTF16IsHighSurrogate, inputUTF16IsLowSurrogate, inputUTF16ToCodePoint, isBooleanMatch, isUTF16, isUTF32, isUTF8, rewindUpTo

Methods inherited from class com.oracle.truffle.regex.tregex.nodes.TRegexExecutorBaseNode

createWrapper, isInstrumentable

Methods inherited from class com.oracle.truffle.api.nodes.Node

accept, adoptChildren, atomic, atomic, copy, deepCopy, getChildren, getCost, getDebugProperties, getDescription, getEncapsulatingSourceSection, getLock, getParent, getRootNode, getSourceSection, insert, insert, isAdoptable, isSafelyReplaceableBy, notifyInserted, onReplace, replace, replace, reportPolymorphicSpecialize, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.oracle.truffle.api.instrumentation.InstrumentableNode

findInstrumentableParent, findNearestNodeAt, getNodeObject, hasTag, materializeInstrumentableNodes

Method Detail

create

public static TRegexNFAExecutorNode create(NFA nfa)

shallowCopy

public TRegexNFAExecutorNode shallowCopy()

Specified by:

shallowCopy in class TRegexExecutorNode

getNFA

public NFA getNFA()

notifyDfaGeneratorBailedOut

public void notifyDfaGeneratorBailedOut()

getName

public String getName()

Specified by:

getName in class TRegexExecutorNode

isForward

public boolean isForward()

Specified by:

isForward in class TRegexExecutorNode

writesCaptureGroups

public boolean writesCaptureGroups()

Description copied from class: TRegexExecutorNode

Returns true if this executor may write any new capture group boundaries.

Specified by:

writesCaptureGroups in class TRegexExecutorNode

createLocals

public TRegexExecutorLocals createLocals(Object input,
                                         int fromIndex,
                                         int index,
                                         int maxIndex)

Specified by:

createLocals in class TRegexExecutorNode

execute

public Object execute(com.oracle.truffle.api.frame.VirtualFrame frame,
                      TRegexExecutorLocals abstractLocals,
                      com.oracle.truffle.api.strings.TruffleString.CodeRange codeRange,
                      boolean tString)

Specified by:

execute in class TRegexExecutorBaseNode