com.oracle.truffle.regex.tregex.nodes.dfa

Class DFAStateNode

java.lang.Object

com.oracle.truffle.api.nodes.Node

com.oracle.truffle.regex.tregex.nodes.dfa.DFAAbstractStateNode

com.oracle.truffle.regex.tregex.nodes.dfa.DFAStateNode

All Implemented Interfaces:

com.oracle.truffle.api.nodes.NodeInterface, JsonConvertible, Cloneable

Direct Known Subclasses:

BackwardDFAStateNode, CGTrackingDFAStateNode

public class DFAStateNode
extends DFAAbstractStateNode

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DFAStateNode.LoopOptimizationNode This node is used when all except a very small set of code points will loop back to the current DFA state.
static class	DFAStateNode.LoopOptIndexOfAnyByteNode Optimized search for a set of up to 4 byte values.
static class	DFAStateNode.LoopOptIndexOfAnyCharNode Optimized search for a set of up to 4 char values.
static class	DFAStateNode.LoopOptIndexOfAnyNode
static class	DFAStateNode.LoopOptIndexOfStringNode Optimized search for a substring.

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

Field Summary

Fields inherited from class com.oracle.truffle.regex.tregex.nodes.dfa.DFAAbstractStateNode

successors

Constructor Summary

Constructors

Constructor and Description
DFAStateNode(short id, byte flags, short loopTransitionIndex, DFAStateNode.LoopOptimizationNode loopOptimizationNode, short[] successors, Matchers matchers, DFASimpleCG simpleCG, AllTransitionsInOneTreeMatcher allTransitionsInOneTreeMatcher)

Method Summary

Modifier and Type	Method and Description
static byte	buildFlags(boolean finalState, boolean anchoredFinalState, boolean hasBackwardPrefixState, boolean utf16MustDecode)
DFAStateNode	createNodeSplitCopy(short copyID) Creates a copy of this state node, where all attributes are copied shallowly, except for the DFAAbstractStateNode.successors array, which is deep-copied, and the node ID, which is replaced by the parameter copyID.
Matchers	getMatchers()
boolean	hasBackwardPrefixState()
boolean	hasLoopToSelf()
boolean	isAnchoredFinalState()
boolean	isFinalState()
JsonValue	toJson()
String	toString()
boolean	utf16MustDecode()

Methods inherited from class com.oracle.truffle.regex.tregex.nodes.dfa.DFAAbstractStateNode

getId, getSuccessors

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

Methods inherited from class java.lang.Object

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

Constructor Detail

DFAStateNode

public DFAStateNode(short id,
                    byte flags,
                    short loopTransitionIndex,
                    DFAStateNode.LoopOptimizationNode loopOptimizationNode,
                    short[] successors,
                    Matchers matchers,
                    DFASimpleCG simpleCG,
                    AllTransitionsInOneTreeMatcher allTransitionsInOneTreeMatcher)

Method Detail

buildFlags

public static byte buildFlags(boolean finalState,
                              boolean anchoredFinalState,
                              boolean hasBackwardPrefixState,
                              boolean utf16MustDecode)

createNodeSplitCopy

public DFAStateNode createNodeSplitCopy(short copyID)

Description copied from class: DFAAbstractStateNode

Creates a copy of this state node, where all attributes are copied shallowly, except for the DFAAbstractStateNode.successors array, which is deep-copied, and the node ID, which is replaced by the parameter copyID. Used by DFANodeSplit.

Specified by:

createNodeSplitCopy in class DFAAbstractStateNode

Parameters:

copyID - new ID for the copy.

Returns:

an "almost shallow" copy of this node.

getMatchers

public final Matchers getMatchers()

isFinalState

public boolean isFinalState()

isAnchoredFinalState

public boolean isAnchoredFinalState()

hasBackwardPrefixState

public boolean hasBackwardPrefixState()

utf16MustDecode

public boolean utf16MustDecode()

hasLoopToSelf

public boolean hasLoopToSelf()

toString

public String toString()

Overrides:

toString in class com.oracle.truffle.api.nodes.Node

toJson

public JsonValue toJson()