Package com.ibm.wala.ipa.callgraph.propagation

Class PointerAnalysisImpl.HModel

java.lang.Object

com.ibm.wala.ipa.callgraph.propagation.PointerAnalysisImpl.HModel

All Implemented Interfaces:

HeapModel, InstanceKeyFactory, PointerKeyFactory

Enclosing class:

PointerAnalysisImpl

protected class PointerAnalysisImpl.HModel
extends Object
implements HeapModel

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	HModel()

Method Summary

Modifier and Type	Method	Description
IClassHierarchy	getClassHierarchy()
FilteredPointerKey	getFilteredPointerKeyForLocal(CGNode node, int valueNumber, FilteredPointerKey.TypeFilter filter)
InstanceKey	getInstanceKeyForAllocation(CGNode node, NewSiteReference allocation)
<T> InstanceKey	getInstanceKeyForConstant(TypeReference type, T S)
InstanceKey	getInstanceKeyForMetadataObject(Object obj, TypeReference objType)
InstanceKey	getInstanceKeyForMultiNewArray(CGNode node, NewSiteReference allocation, int dim)
InstanceKey	getInstanceKeyForPEI(CGNode node, ProgramCounter peiLoc, TypeReference type)
PointerKey	getPointerKeyForArrayContents(InstanceKey I)	TODO: expand this API to differentiate between different array indices
PointerKey	getPointerKeyForExceptionalReturnValue(CGNode node)
PointerKey	getPointerKeyForInstanceField(InstanceKey I, IField field)
PointerKey	getPointerKeyForLocal(CGNode node, int valueNumber)
PointerKey	getPointerKeyForReturnValue(CGNode node)
PointerKey	getPointerKeyForStaticField(IField f)
Iterator<PointerKey>	iteratePointerKeys()

Methods inherited from class java.lang.Object

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

Constructor Details

HModel

protected HModel()

Method Details

iteratePointerKeys

public Iterator<PointerKey> iteratePointerKeys()

Specified by:

iteratePointerKeys in interface HeapModel

Returns:

an Iterator of all PointerKeys that are modeled.

getInstanceKeyForAllocation

public InstanceKey getInstanceKeyForAllocation(CGNode node,
 NewSiteReference allocation)

Specified by:

getInstanceKeyForAllocation in interface InstanceKeyFactory

Returns:

the instance key that represents a particular allocation

getInstanceKeyForMultiNewArray

public InstanceKey getInstanceKeyForMultiNewArray(CGNode node,
 NewSiteReference allocation,
 int dim)

Specified by:

getInstanceKeyForMultiNewArray in interface InstanceKeyFactory

Returns:

the instance key that represents the array allocated as the dim_th dimension at a particular allocation

getInstanceKeyForConstant

public <T> InstanceKey getInstanceKeyForConstant(TypeReference type,
 T S)

Specified by:

getInstanceKeyForConstant in interface InstanceKeyFactory

Returns:

the instance key that represents a constant with value S, when considered as a particular type

getInstanceKeyForPEI

public InstanceKey getInstanceKeyForPEI(CGNode node,
 ProgramCounter peiLoc,
 TypeReference type)

Specified by:

getInstanceKeyForPEI in interface InstanceKeyFactory

Returns:

the instance key that represents the exception of type _type_ thrown by a particular PEI.

getInstanceKeyForMetadataObject

public InstanceKey getInstanceKeyForMetadataObject(Object obj,
 TypeReference objType)

Specified by:

getInstanceKeyForMetadataObject in interface InstanceKeyFactory

objType - TODO

Returns:

the instance key that represents the metadata object obj

getPointerKeyForLocal

public PointerKey getPointerKeyForLocal(CGNode node,
 int valueNumber)

Specified by:

getPointerKeyForLocal in interface PointerKeyFactory

Returns:

the PointerKey that acts as a representative for the class of pointers that includes the local variable identified by the value number parameter.

See Also:

• PointerKeyFactory.getPointerKeyForLocal(com.ibm.wala.ipa.callgraph.CGNode, int)

getFilteredPointerKeyForLocal

public FilteredPointerKey getFilteredPointerKeyForLocal(CGNode node,
 int valueNumber,
 FilteredPointerKey.TypeFilter filter)

Specified by:

getFilteredPointerKeyForLocal in interface PointerKeyFactory

Returns:

the PointerKey that acts as a representative for the class of pointers that includes the local variable identified by the value number parameter.

getPointerKeyForReturnValue

public PointerKey getPointerKeyForReturnValue(CGNode node)

Specified by:

getPointerKeyForReturnValue in interface PointerKeyFactory

Returns:

the PointerKey that acts as a representative for the class of pointers that includes the return value for a node

See Also:

• PointerKeyFactory.getPointerKeyForReturnValue(com.ibm.wala.ipa.callgraph.CGNode)

getPointerKeyForExceptionalReturnValue

public PointerKey getPointerKeyForExceptionalReturnValue(CGNode node)

Specified by:

getPointerKeyForExceptionalReturnValue in interface PointerKeyFactory

Returns:

the PointerKey that acts as a representative for the class of pointers that includes the exceptional return value

getPointerKeyForStaticField

public PointerKey getPointerKeyForStaticField(IField f)

Specified by:

getPointerKeyForStaticField in interface PointerKeyFactory

Returns:

the PointerKey that acts as a representative for the class of pointers that includes the contents of the static field

getPointerKeyForInstanceField

public PointerKey getPointerKeyForInstanceField(InstanceKey I,
 IField field)

Specified by:

getPointerKeyForInstanceField in interface PointerKeyFactory

Returns:

the PointerKey that acts as a representation for the class of pointers that includes the given instance field.

getPointerKeyForArrayContents

public PointerKey getPointerKeyForArrayContents(InstanceKey I)

Description copied from interface: PointerKeyFactory

TODO: expand this API to differentiate between different array indices

Specified by:

getPointerKeyForArrayContents in interface PointerKeyFactory

Parameters:

I - an InstanceKey representing an abstract array

Returns:

the PointerKey that acts as a representation for the class of pointers that includes the given array contents.

getClassHierarchy

public IClassHierarchy getClassHierarchy()

Specified by:

getClassHierarchy in interface HeapModel

Returns:

the governing class hierarchy for this heap model