Package com.ibm.wala.ipa.callgraph.impl

Class ExplicitCallGraph.ExplicitNode

java.lang.Object

com.ibm.wala.util.graph.impl.NodeWithNumber

com.ibm.wala.ipa.callgraph.impl.BasicCallGraph.NodeImpl

com.ibm.wala.ipa.callgraph.impl.ExplicitCallGraph.ExplicitNode

All Implemented Interfaces:

CGNode, ContextItem, IClassHierarchyDweller, INodeWithNumber

Direct Known Subclasses:

AstCallGraph.AstCGNode, DelegatingExplicitCallGraph.DelegatingCGNode

Enclosing class:

ExplicitCallGraph

public class ExplicitCallGraph.ExplicitNode
extends BasicCallGraph.NodeImpl

Nested Class Summary

Nested classes/interfaces inherited from interface com.ibm.wala.ipa.callgraph.ContextItem

ContextItem.Value<T>

Field Summary

Fields

Modifier and Type	Field	Description
protected final SparseVector<Object>	targets	A Mapping from call site program counter (int) -> Object, where Object is a CGNode if we've discovered exactly one target for the site, or an IntSet of node numbers if we've discovered more than one target for the site.

Fields inherited from class com.ibm.wala.ipa.callgraph.impl.BasicCallGraph.NodeImpl

method

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ExplicitNode(IMethod method, Context C)

Method Summary

Modifier and Type	Method	Description
protected boolean	addTarget(int pc, CGNode tNode)
boolean	addTarget(CallSiteReference site, CGNode tNode)	NOTE: This is for use only by call graph builders, not by any other client of this interface.
void	clearAllTargets()
boolean	equals(Object obj)
protected MutableSharedBitVectorIntSet	getAllTargetNumbers()
ExplicitCallGraph	getCallGraph()
ControlFlowGraph<SSAInstruction,ISSABasicBlock>	getCFG()
DefUse	getDU()
IR	getIR()
protected int	getNumberOfTargets(CallSiteReference site)
protected Iterator<CallSiteReference>	getPossibleSites(CGNode to)
protected IntSet	getPossibleTargetNumbers(CallSiteReference site)
protected Set<CGNode>	getPossibleTargets(CallSiteReference site)
int	hashCode()
Iterator<CallSiteReference>	iterateCallSites()
Iterator<NewSiteReference>	iterateNewSites()
void	removeTarget(CGNode target)

Methods inherited from class com.ibm.wala.ipa.callgraph.impl.BasicCallGraph.NodeImpl

getClassHierarchy, getContext, getMethod, toString

Methods inherited from class com.ibm.wala.util.graph.impl.NodeWithNumber

getGraphNodeId, setGraphNodeId

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.ibm.wala.util.graph.INodeWithNumber

getGraphNodeId, setGraphNodeId

Field Details

targets

protected final SparseVector<Object> targets

A Mapping from call site program counter (int) -> Object, where Object is a CGNode if we've discovered exactly one target for the site, or an IntSet of node numbers if we've discovered more than one target for the site.

Constructor Details

ExplicitNode

protected ExplicitNode(IMethod method,
 Context C)

Method Details

getPossibleTargets

protected Set<CGNode> getPossibleTargets(CallSiteReference site)

getPossibleTargetNumbers

protected IntSet getPossibleTargetNumbers(CallSiteReference site)

getPossibleSites

protected Iterator<CallSiteReference> getPossibleSites(CGNode to)

getNumberOfTargets

protected int getNumberOfTargets(CallSiteReference site)

addTarget

public boolean addTarget(CallSiteReference site,
 CGNode tNode)

Description copied from interface: CGNode

NOTE: This is for use only by call graph builders, not by any other client of this interface.

Record that a particular call site might resolve to a call to a particular target node. Returns true if this is a new target

addTarget

protected boolean addTarget(int pc,
 CGNode tNode)

removeTarget

public void removeTarget(CGNode target)

See Also:

• BasicCallGraph.removeNodeAndEdges(com.ibm.wala.ipa.callgraph.CGNode)

equals

public boolean equals(Object obj)

Specified by:

equals in class BasicCallGraph.NodeImpl

See Also:

• Object.equals(Object)

hashCode

public int hashCode()

Specified by:

hashCode in class BasicCallGraph.NodeImpl

See Also:

• Object.hashCode()

getAllTargetNumbers

protected MutableSharedBitVectorIntSet getAllTargetNumbers()

clearAllTargets

public void clearAllTargets()

getIR

public IR getIR()

Returns:

the "default" IR for this node used by the governing call graph

getDU

public DefUse getDU()

Returns:

DefUse for the "default" IR for this node used by the governing call graph

getCallGraph

public ExplicitCallGraph getCallGraph()

iterateCallSites

public Iterator<CallSiteReference> iterateCallSites()

Returns:

an Iterator of the call statements that may execute in a given method for a given context

iterateNewSites

public Iterator<NewSiteReference> iterateNewSites()

Returns:

an Iterator of the types that may be allocated by a given method in a given context.

getCFG

public ControlFlowGraph<SSAInstruction,ISSABasicBlock> getCFG()