Class FlatInstantiator

java.lang.Object

com.ibm.wala.dalvik.ipa.callgraph.androidModel.parameters.FlatInstantiator

All Implemented Interfaces:

IInstantiator

Direct Known Subclasses:

SpecializedInstantiator

public class FlatInstantiator
extends Object
implements IInstantiator

Add code to create an instance of a type in a synthetic method.

This variant limits recursion depth.

Author:

Tobias Blaschke <code@tobiasblaschke.de>

Constructor Summary

Constructors

Constructor	Description
FlatInstantiator(VolatileMethodSummary body, TypeSafeInstructionFactory instructionFactory, SSAValueManager pm, IClassHierarchy cha, MethodReference scope, AnalysisScope analysisScope)
FlatInstantiator(VolatileMethodSummary body, TypeSafeInstructionFactory instructionFactory, SSAValueManager pm, IClassHierarchy cha, MethodReference scope, AnalysisScope analysisScope, int maxDepth)

Method Summary

Modifier and Type	Method	Description
protected void	addCallCtor(SSAValue self, MethodReference ctor, List<SSAValue> ctorParams)	Add a call to the given constructor to the body.
SSAValue	createInstance(TypeReference T, boolean asManaged, SSAValue.VariableKey key, Set<? extends SSAValue> seen)	Creates a new instance of type calling all that's necessary.
int	createInstance(TypeReference type, Object... instantiatorArgs)	Satisfy the interface.

Methods inherited from class java.lang.Object

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

Constructor Details

FlatInstantiator

public FlatInstantiator(VolatileMethodSummary body,
 TypeSafeInstructionFactory instructionFactory,
 SSAValueManager pm,
 IClassHierarchy cha,
 MethodReference scope,
 AnalysisScope analysisScope)

FlatInstantiator

public FlatInstantiator(VolatileMethodSummary body,
 TypeSafeInstructionFactory instructionFactory,
 SSAValueManager pm,
 IClassHierarchy cha,
 MethodReference scope,
 AnalysisScope analysisScope,
 int maxDepth)

Method Details

createInstance

public SSAValue createInstance(TypeReference T,
 boolean asManaged,
 SSAValue.VariableKey key,
 Set<? extends SSAValue> seen)

Creates a new instance of type calling all that's necessary.

If T is a class-type all its constructors are searched for the one found best suited (takes the least arguments, ...). New instances are created for all parameters, then the constructor is called.

If T represents multiple types (is an interface, abstract class, ...) _all_ implementors of that type are instantiated After that they get Phi-ed together.

If T is an array-type a new array of length 1 is generated.

TODO: Do we want to mix in REUSE-Parameters?

addCallCtor

protected void addCallCtor(SSAValue self,
 MethodReference ctor,
 List<SSAValue> ctorParams)

Add a call to the given constructor to the body.

Parameters:

self - the "this" to call the constructor on

ctor - the constructor to call

ctorParams - parameters to the ctor _without_ implicit this

createInstance

public int createInstance(TypeReference type,
 Object... instantiatorArgs)

Satisfy the interface.

Specified by:

createInstance in interface IInstantiator

Parameters:

type - Type to generate an instance from

instantiatorArgs - passed through utility functions

Returns:

SSA-Number of the instance