com.ibm.wala.ipa.callgraph.propagation
Class ReceiverTypeContextSelector

java.lang.Object
  com.ibm.wala.ipa.callgraph.propagation.ReceiverTypeContextSelector

All Implemented Interfaces:

ContextSelector

public class ReceiverTypeContextSelector
extends java.lang.Object
implements ContextSelector

This context selector selects a context based on the concrete type of the receiver.

Constructor Summary

ReceiverTypeContextSelector()

Method Summary

Context	getCalleeTarget(CGNode caller, CallSiteReference site, IMethod callee, InstanceKey[] receiver) Given a calling node and a call site, returns the Context in which the callee should be evaluated.
IntSet	getRelevantParameters(CGNode caller, CallSiteReference site) Given a calling node and a call site, return the set of parameters based on which this selector may choose to specialize contexts.

Methods inherited from class java.lang.Object

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

Constructor Detail

ReceiverTypeContextSelector

public ReceiverTypeContextSelector()

Method Detail

getCalleeTarget

public Context getCalleeTarget(CGNode caller,
                               CallSiteReference site,
                               IMethod callee,
                               InstanceKey[] receiver)

Description copied from interface: ContextSelector

Given a calling node and a call site, returns the Context in which the callee should be evaluated.

Specified by:

getCalleeTarget in interface ContextSelector

Parameters:

caller - the node containing the call site

site - description of the call site

receiver - the abstract objects (InstanceKeys) of parameters of interest to the selector

Returns:

the Context in which the callee should be evaluated, or null if no information is available.

getRelevantParameters

public IntSet getRelevantParameters(CGNode caller,
                                    CallSiteReference site)

Description copied from interface: ContextSelector

Given a calling node and a call site, return the set of parameters based on which this selector may choose to specialize contexts.

Specified by:

getRelevantParameters in interface ContextSelector

Parameters:

caller - the calling node

site - the specific call site

Returns:

the set of parameters of interest