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

Class OneLevelSiteContextSelector

java.lang.Object

com.ibm.wala.ipa.callgraph.propagation.cfa.OneLevelSiteContextSelector

All Implemented Interfaces:

ContextSelector

public class OneLevelSiteContextSelector
extends Object
implements ContextSelector

This is a context selector that adds one level of calling context to a base context selector.

Constructor Summary

Constructors

Constructor	Description
OneLevelSiteContextSelector(ContextSelector baseSelector)

Method Summary

Modifier and Type	Method	Description
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 Details

OneLevelSiteContextSelector

public OneLevelSiteContextSelector(ContextSelector baseSelector)

Parameters:

baseSelector - a context selector which provides the context to analyze a method in, but without one level of calling context.

Method Details

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