com.oracle.graal.graph

Class NodeIdAccessor

java.lang.Object

com.oracle.graal.graph.NodeIdAccessor

Direct Known Subclasses:

Graph.Mark, NodeMap, NodeUnionFind

class NodeIdAccessor
extends Object

An entity that depends upon stable node identifiers.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) int	epoch
(package private) Graph	graph

Constructor Summary

Constructors

Constructor and Description
NodeIdAccessor(Graph graph)

Method Summary

Modifier and Type	Method and Description
(package private) Graph	getGraph()
int	getNodeId(Node node) Gets the identifier for a node.
boolean	verifyIdsAreStable() Verifies that node identifiers have not changed since this object was created.

Methods inherited from class java.lang.Object

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

Field Detail

graph

final Graph graph

epoch

final int epoch

Constructor Detail

NodeIdAccessor

public NodeIdAccessor(Graph graph)

Method Detail

getGraph

Graph getGraph()

verifyIdsAreStable

public boolean verifyIdsAreStable()

Verifies that node identifiers have not changed since this object was created.

Returns:

true if the check succeeds

Throws:

VerificationError - if the check fails

getNodeId

public int getNodeId(Node node)

Gets the identifier for a node. If assertions are enabled, this method asserts that the identifier is stable.