Package soot.jimple.toolkits.infoflow

Class SimpleMethodInfoFlowAnalysis

java.lang.Object

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

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

soot.toolkits.scalar.ForwardFlowAnalysis<Unit,FlowSet<Pair<EquivalentValue,EquivalentValue>>>

soot.jimple.toolkits.infoflow.SimpleMethodInfoFlowAnalysis

Direct Known Subclasses:

SimpleMethodLocalObjectsAnalysis

public class SimpleMethodInfoFlowAnalysis
extends ForwardFlowAnalysis<Unit,FlowSet<Pair<EquivalentValue,EquivalentValue>>>

Nested Class Summary

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

FlowAnalysis.Flow

Field Summary

Fields

Modifier and Type	Field	Description
static int	counter

Fields inherited from class soot.toolkits.scalar.FlowAnalysis

filterUnitToAfterFlow, unitToAfterFlow

Fields inherited from class soot.toolkits.scalar.AbstractFlowAnalysis

filterUnitToBeforeFlow, graph, unitToBeforeFlow

Constructor Summary

Constructors

Modifier	Constructor	Description
	SimpleMethodInfoFlowAnalysis(UnitGraph g, InfoFlowAnalysis dfa, boolean ignoreNonRefTypeFlow)
protected	SimpleMethodInfoFlowAnalysis(UnitGraph g, InfoFlowAnalysis dfa, boolean ignoreNonRefTypeFlow, boolean dummyDontRunAnalysisYet)	A constructor that doesn't run the analysis

Method Summary

Modifier and Type	Method	Description
void	addToEntryInitialFlow(Value source, Value sink)
void	addToNewInitialFlow(Value source, Value sink)
protected void	copy(FlowSet<Pair<EquivalentValue,EquivalentValue>> source, FlowSet<Pair<EquivalentValue,EquivalentValue>> dest)	Creates a copy of the source flow object in dest.
void	doFlowInsensitiveAnalysis()
protected FlowSet<Pair<EquivalentValue,EquivalentValue>>	entryInitialFlow()	Returns the initial flow value for entry/exit graph nodes.
protected void	flowThrough(FlowSet<Pair<EquivalentValue,EquivalentValue>> in, Unit unit, FlowSet<Pair<EquivalentValue,EquivalentValue>> out)	Given the merge of the out sets, compute the in set for s (or in to out, depending on direction).
MutableDirectedGraph<EquivalentValue>	getMethodInfoFlowSummary()
Value	getThisLocal()
protected void	handleFlowsToDataStructure(Value base, Value initialSource, FlowSet<Pair<EquivalentValue,EquivalentValue>> fs)
protected void	handleFlowsToValue(Value sink, Value initialSource, FlowSet<Pair<EquivalentValue,EquivalentValue>> fs)
protected List<Value>	handleInvokeExpr(InvokeExpr ie, Stmt is, FlowSet<Pair<EquivalentValue,EquivalentValue>> fs)
protected boolean	ignoreThisDataType(Type type)
boolean	isInterestingSink(Value sink)
boolean	isInterestingSource(Value source)
protected boolean	isNonRefType(Type type)
boolean	isTrackableSink(Value sink)
boolean	isTrackableSource(Value source)
protected void	merge(FlowSet<Pair<EquivalentValue,EquivalentValue>> in1, FlowSet<Pair<EquivalentValue,EquivalentValue>> in2, FlowSet<Pair<EquivalentValue,EquivalentValue>> out)	Compute the merge of the in1 and in2 sets, putting the result into out.
protected FlowSet<Pair<EquivalentValue,EquivalentValue>>	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

copyFreshToExisting, 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

Field Detail

counter

public static int counter

Constructor Detail

SimpleMethodInfoFlowAnalysis

public SimpleMethodInfoFlowAnalysis(UnitGraph g,
                                    InfoFlowAnalysis dfa,
                                    boolean ignoreNonRefTypeFlow)

SimpleMethodInfoFlowAnalysis

protected SimpleMethodInfoFlowAnalysis(UnitGraph g,
                                       InfoFlowAnalysis dfa,
                                       boolean ignoreNonRefTypeFlow,
                                       boolean dummyDontRunAnalysisYet)

A constructor that doesn't run the analysis

Method Detail

doFlowInsensitiveAnalysis

public void doFlowInsensitiveAnalysis()

getMethodInfoFlowSummary

public MutableDirectedGraph<EquivalentValue> getMethodInfoFlowSummary()

merge

protected void merge(FlowSet<Pair<EquivalentValue,EquivalentValue>> in1,
                     FlowSet<Pair<EquivalentValue,EquivalentValue>> in2,
                     FlowSet<Pair<EquivalentValue,EquivalentValue>> 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<Pair<EquivalentValue,EquivalentValue>>>

isNonRefType

protected boolean isNonRefType(Type type)

ignoreThisDataType

protected boolean ignoreThisDataType(Type type)

isInterestingSource

public boolean isInterestingSource(Value source)

isTrackableSource

public boolean isTrackableSource(Value source)

isInterestingSink

public boolean isInterestingSink(Value sink)

isTrackableSink

public boolean isTrackableSink(Value sink)

handleFlowsToValue

protected void handleFlowsToValue(Value sink,
                                  Value initialSource,
                                  FlowSet<Pair<EquivalentValue,EquivalentValue>> fs)

handleFlowsToDataStructure

protected void handleFlowsToDataStructure(Value base,
                                          Value initialSource,
                                          FlowSet<Pair<EquivalentValue,EquivalentValue>> fs)

handleInvokeExpr

protected List<Value> handleInvokeExpr(InvokeExpr ie,
                                       Stmt is,
                                       FlowSet<Pair<EquivalentValue,EquivalentValue>> fs)

flowThrough

protected void flowThrough(FlowSet<Pair<EquivalentValue,EquivalentValue>> in,
                           Unit unit,
                           FlowSet<Pair<EquivalentValue,EquivalentValue>> out)

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<Pair<EquivalentValue,EquivalentValue>>>

Parameters:

in - the input flow

unit - the current node

out - the returned flow

copy

protected void copy(FlowSet<Pair<EquivalentValue,EquivalentValue>> source,
                    FlowSet<Pair<EquivalentValue,EquivalentValue>> dest)

Description copied from class: AbstractFlowAnalysis

Creates a copy of the source flow object in dest.

Specified by:

copy in class AbstractFlowAnalysis<Unit,FlowSet<Pair<EquivalentValue,EquivalentValue>>>

entryInitialFlow

protected FlowSet<Pair<EquivalentValue,EquivalentValue>> 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<Pair<EquivalentValue,EquivalentValue>>>

newInitialFlow

protected FlowSet<Pair<EquivalentValue,EquivalentValue>> 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<Pair<EquivalentValue,EquivalentValue>>>

addToEntryInitialFlow

public void addToEntryInitialFlow(Value source,
                                  Value sink)

addToNewInitialFlow

public void addToNewInitialFlow(Value source,
                                Value sink)

getThisLocal

public Value getThisLocal()