Package soot.jimple.toolkits.callgraph

Class ClinitElimAnalysis

java.lang.Object

soot.toolkits.scalar.AbstractFlowAnalysis<N,A>

soot.toolkits.scalar.FlowAnalysis<N,A>

soot.toolkits.scalar.ForwardFlowAnalysis<Unit,FlowSet<SootMethod>>

soot.jimple.toolkits.callgraph.ClinitElimAnalysis

public class ClinitElimAnalysis
extends ForwardFlowAnalysis<Unit,FlowSet<SootMethod>>

Nested Class Summary

Nested classes/interfaces inherited from class soot.toolkits.scalar.FlowAnalysis

FlowAnalysis.Flow

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

Constructors

Constructor	Description
ClinitElimAnalysis(UnitGraph g)

Method Summary

Modifier and Type	Method	Description
protected FlowSet<SootMethod>	calculateInitialFlow()
void	copy(FlowSet<SootMethod> src, FlowSet<SootMethod> dest)	Creates a copy of the source flow object in dest.
protected void	copyFreshToExisting(FlowSet<SootMethod> in, FlowSet<SootMethod> dest)	Copies a *fresh* copy of in to dest.
protected FlowSet<SootMethod>	entryInitialFlow()	Returns the initial flow value for entry/exit graph nodes.
protected void	flowThrough(FlowSet<SootMethod> inVal, Unit stmt, FlowSet<SootMethod> outVal)	Given the merge of the out sets, compute the in set for s (or in to out, depending on direction).
void	merge(FlowSet<SootMethod> in1, FlowSet<SootMethod> in2, FlowSet<SootMethod> out)	Compute the merge of the in1 and in2 sets, putting the result into out.
protected FlowSet<SootMethod>	newInitialFlow()	Returns the flow object corresponding to the initial values for each graph node.

Methods inherited from class soot.toolkits.scalar.ForwardFlowAnalysis

doAnalysis, isForward

Methods inherited from class soot.toolkits.scalar.FlowAnalysis

getFlow, getFlowAfter, getFlowBefore, omissible

Methods inherited from class soot.toolkits.scalar.AbstractFlowAnalysis

merge, mergeInto, treatTrapHandlersAsEntries

Methods inherited from class java.lang.Object

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

Constructor Detail

ClinitElimAnalysis

public ClinitElimAnalysis(UnitGraph g)

Method Detail

merge

public void merge(FlowSet<SootMethod> in1,
                  FlowSet<SootMethod> in2,
                  FlowSet<SootMethod> out)

Description copied from class: AbstractFlowAnalysis

Compute the merge of the in1 and in2 sets, putting the result into out. The behavior of this function depends on the implementation ( it may be necessary to check whether in1 and in2 are equal or aliased ). Used by the doAnalysis method.

Specified by:

merge in class AbstractFlowAnalysis<Unit,FlowSet<SootMethod>>

copy

public void copy(FlowSet<SootMethod> src,
                 FlowSet<SootMethod> dest)

Description copied from class: AbstractFlowAnalysis

Creates a copy of the source flow object in dest.

Specified by:

copy in class AbstractFlowAnalysis<Unit,FlowSet<SootMethod>>

copyFreshToExisting

protected void copyFreshToExisting(FlowSet<SootMethod> in,
                                   FlowSet<SootMethod> dest)

Description copied from class: FlowAnalysis

Copies a *fresh* copy of in to dest. The input is not referenced somewhere else. This allows subclasses for a smarter and faster copying.

Overrides:

copyFreshToExisting in class FlowAnalysis<Unit,FlowSet<SootMethod>>

flowThrough

protected void flowThrough(FlowSet<SootMethod> inVal,
                           Unit stmt,
                           FlowSet<SootMethod> outVal)

Description copied from class: FlowAnalysis

Given the merge of the out sets, compute the in set for s (or in to out, depending on direction). This function often causes confusion, because the same interface is used for both forward and backward flow analyses. The first parameter is always the argument to the flow function (i.e. it is the "in" set in a forward analysis and the "out" set in a backward analysis), and the third parameter is always the result of the flow function (i.e. it is the "out" set in a forward analysis and the "in" set in a backward analysis).

Specified by:

flowThrough in class FlowAnalysis<Unit,FlowSet<SootMethod>>

Parameters:

inVal - the input flow

stmt - the current node

outVal - the returned flow

entryInitialFlow

protected FlowSet<SootMethod> entryInitialFlow()

Description copied from class: AbstractFlowAnalysis

Returns the initial flow value for entry/exit graph nodes. This is equal to AbstractFlowAnalysis.newInitialFlow()

Overrides:

entryInitialFlow in class AbstractFlowAnalysis<Unit,FlowSet<SootMethod>>

newInitialFlow

protected FlowSet<SootMethod> newInitialFlow()

Description copied from class: AbstractFlowAnalysis

Returns the flow object corresponding to the initial values for each graph node.

Specified by:

newInitialFlow in class AbstractFlowAnalysis<Unit,FlowSet<SootMethod>>

calculateInitialFlow

protected FlowSet<SootMethod> calculateInitialFlow()