soot.toolkits.scalar
Class BackwardFlowAnalysis<N,A>

java.lang.Object
  soot.toolkits.scalar.AbstractFlowAnalysis<N,A>
      soot.toolkits.scalar.FlowAnalysis<N,A>
          soot.toolkits.scalar.BackwardFlowAnalysis<N,A>

Direct Known Subclasses:

CombinedDUAnalysis, CommonPrecedingEqualValueAnalysis, DownSafetyAnalysis, LockableReferenceAnalysis, New2InitFlowAnalysis, NotIsolatedAnalysis, NullnessAssumptionAnalysis, PostDominatorAnalysis, StrayRWFinder

public abstract class BackwardFlowAnalysis<N,A>
extends FlowAnalysis<N,A>

Abstract class that provides the fixed point iteration functionality required by all BackwardFlowAnalyses.

Field Summary

Fields inherited from class soot.toolkits.scalar.FlowAnalysis

filterUnitToAfterFlow, unitToAfterFlow

Fields inherited from class soot.toolkits.scalar.AbstractFlowAnalysis

filterUnitToBeforeFlow, graph, unitToBeforeFlow

Constructor Summary

BackwardFlowAnalysis(DirectedGraph<N> graph)
Construct the analysis from a DirectedGraph representation of a Body.

Method Summary

protected Collection<N>	constructWorklist(Map<N,Integer> numbers)
protected void	doAnalysis() Carries out the actual flow analysis.
protected boolean	isForward() Returns true if this analysis is forwards.

Methods inherited from class soot.toolkits.scalar.FlowAnalysis

constructOrderer, flowThrough, getFlowAfter

Methods inherited from class soot.toolkits.scalar.AbstractFlowAnalysis

copy, entryInitialFlow, getFlowBefore, merge, merge, mergeInto, newInitialFlow, treatTrapHandlersAsEntries

Methods inherited from class java.lang.Object

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

Constructor Detail

BackwardFlowAnalysis

public BackwardFlowAnalysis(DirectedGraph<N> graph)

Construct the analysis from a DirectedGraph representation of a Body.

Method Detail

isForward

protected boolean isForward()

Description copied from class: AbstractFlowAnalysis

Returns true if this analysis is forwards.

Specified by:

isForward in class AbstractFlowAnalysis<N,A>

doAnalysis

protected void doAnalysis()

Description copied from class: AbstractFlowAnalysis

Carries out the actual flow analysis. Typically called from a concrete FlowAnalysis's constructor.

Specified by:

doAnalysis in class AbstractFlowAnalysis<N,A>

constructWorklist

protected Collection<N> constructWorklist(Map<N,Integer> numbers)