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

Class DFAAbstractStateNode

java.lang.Object

com.oracle.truffle.api.nodes.Node

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

All Implemented Interfaces:

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

Direct Known Subclasses:

DFAFindInnerLiteralStateNode, DFAInitialStateNode, DFAStateNode

public abstract class DFAAbstractStateNode
extends com.oracle.truffle.api.nodes.Node
implements JsonConvertible

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

Field Summary

Fields

Modifier and Type	Field and Description
protected short[]	successors

Method Summary

Modifier and Type	Method and Description
abstract DFAAbstractStateNode	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.
abstract void	executeFindSuccessor(TRegexDFAExecutorLocals locals, TRegexDFAExecutorNode executor, boolean compactString) Calculates this state's successor and returns its ID (DFAAbstractStateNode.getId()) via TRegexDFAExecutorLocals.setSuccessorIndex(int).
short	getId()
short[]	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, lookupContextReference, lookupLanguageReference, notifyInserted, onReplace, replace, replace, reportPolymorphicSpecialize, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.oracle.truffle.regex.tregex.util.json.JsonConvertible

toJson

Field Detail

successors

protected final short[] successors

Method Detail

createNodeSplitCopy

public abstract DFAAbstractStateNode 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. Used by DFANodeSplit.

Parameters:

copyID - new ID for the copy.

Returns:

an "almost shallow" copy of this node.

getId

public final short getId()

getSuccessors

public final short[] getSuccessors()

executeFindSuccessor

public abstract void executeFindSuccessor(TRegexDFAExecutorLocals locals,
                                          TRegexDFAExecutorNode executor,
                                          boolean compactString)

Calculates this state's successor and returns its ID (DFAAbstractStateNode.getId()) via TRegexDFAExecutorLocals.setSuccessorIndex(int). This return value is called "successor index" and may either be an index of the successors array (between 0 and DFAAbstractStateNode.getSuccessors().length) or DFAAbstractStateNode.FS_RESULT_NO_SUCCESSOR.

Parameters:

locals - a virtual frame as described by TRegexDFAExecutorProperties.

executor - this node's parent TRegexDFAExecutorNode.

compactString -