Class JavaLangClassContextInterpreter

java.lang.Object

com.ibm.wala.analysis.reflection.JavaLangClassContextInterpreter

All Implemented Interfaces:

CHAContextInterpreter, RTAContextInterpreter, SSAContextInterpreter

public class JavaLangClassContextInterpreter
extends Object
implements SSAContextInterpreter

An SSAContextInterpreter specialized to interpret methods on java.lang.Class in a JavaTypeContext which represents the point-type of the class object created by the call.

Currently supported methods:

• getConstructor
• getConstructors
• getMethod
• getMethods
• getDeclaredConstructor
• getDeclaredConstructors
• getDeclaredMethod
• getDeclaredMethods

Field Summary

Fields

Modifier and Type	Field	Description
static final MethodReference	GET_CONSTRUCTOR
static final MethodReference	GET_CONSTRUCTORS
static final MethodReference	GET_DECLARED_CONSTRUCTOR
static final MethodReference	GET_DECLARED_CONSTRUCTORS
static final MethodReference	GET_DECLARED_METHOD
static final MethodReference	GET_DECLARED_METHODS
static final MethodReference	GET_METHOD
static final MethodReference	GET_METHODS

Constructor Summary

Constructors

Constructor	Description
JavaLangClassContextInterpreter()

Method Summary

Modifier and Type	Method	Description
ControlFlowGraph<SSAInstruction, ISSABasicBlock>	getCFG(CGNode N)
DefUse	getDU(CGNode node)
IR	getIR(CGNode node)
IRView	getIRView(CGNode node)
int	getNumberOfStatements(CGNode node)
Iterator<CallSiteReference>	iterateCallSites(CGNode node)
Iterator<FieldReference>	iterateFieldsRead(CGNode node)
Iterator<FieldReference>	iterateFieldsWritten(CGNode node)
Iterator<NewSiteReference>	iterateNewSites(CGNode node)
boolean	recordFactoryType(CGNode node, IClass klass)	record that the "factory" method of a node should be interpreted to allocate a particular class.
boolean	understands(CGNode node)	Does this object understand the given method? The caller had better check this before inquiring on other properties.

Methods inherited from class Object

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

Field Details

GET_CONSTRUCTOR

public static final MethodReference GET_CONSTRUCTOR

GET_CONSTRUCTORS

public static final MethodReference GET_CONSTRUCTORS

GET_METHOD

public static final MethodReference GET_METHOD

GET_METHODS

public static final MethodReference GET_METHODS

GET_DECLARED_CONSTRUCTOR

public static final MethodReference GET_DECLARED_CONSTRUCTOR

GET_DECLARED_CONSTRUCTORS

public static final MethodReference GET_DECLARED_CONSTRUCTORS

GET_DECLARED_METHOD

public static final MethodReference GET_DECLARED_METHOD

GET_DECLARED_METHODS

public static final MethodReference GET_DECLARED_METHODS

Constructor Details

JavaLangClassContextInterpreter

public JavaLangClassContextInterpreter()

Method Details

getIR

public IR getIR(CGNode node)

Specified by:

getIR in interface SSAContextInterpreter

Returns:

the IR that models the method context, or null if it's an unmodelled native method

getIRView

public IRView getIRView(CGNode node)

Specified by:

getIRView in interface SSAContextInterpreter

getNumberOfStatements

public int getNumberOfStatements(CGNode node)

Specified by:

getNumberOfStatements in interface SSAContextInterpreter

Returns:

the number of the statements in the IR, or -1 if it's an unmodelled native method.

understands

public boolean understands(CGNode node)

Description copied from interface: CHAContextInterpreter

Does this object understand the given method? The caller had better check this before inquiring on other properties.

Specified by:

understands in interface CHAContextInterpreter

See Also:

• CHAContextInterpreter.understands(com.ibm.wala.ipa.callgraph.CGNode)

iterateNewSites

public Iterator<NewSiteReference> iterateNewSites(CGNode node)

Specified by:

iterateNewSites in interface CHAContextInterpreter

Specified by:

iterateNewSites in interface RTAContextInterpreter

Returns:

an Iterator of the types that may be allocated by a given method in a given context.

iterateCallSites

public Iterator<CallSiteReference> iterateCallSites(CGNode node)

Specified by:

iterateCallSites in interface CHAContextInterpreter

Returns:

an Iterator of the call statements that may execute in a given method for a given context

recordFactoryType

public boolean recordFactoryType(CGNode node,
 IClass klass)

Description copied from interface: RTAContextInterpreter

record that the "factory" method of a node should be interpreted to allocate a particular class.

TODO: this is a little ugly, is there a better place to move this?

Specified by:

recordFactoryType in interface RTAContextInterpreter

Returns:

true iff a NEW type was recorded, false if the type was previously recorded.

iterateFieldsRead

public Iterator<FieldReference> iterateFieldsRead(CGNode node)

Specified by:

iterateFieldsRead in interface RTAContextInterpreter

Returns:

iterator of FieldReference

iterateFieldsWritten

public Iterator<FieldReference> iterateFieldsWritten(CGNode node)

Specified by:

iterateFieldsWritten in interface RTAContextInterpreter

Returns:

iterator of FieldReference

getCFG

public ControlFlowGraph<SSAInstruction, ISSABasicBlock> getCFG(CGNode N)

Specified by:

getCFG in interface SSAContextInterpreter

getDU

public DefUse getDU(CGNode node)

Specified by:

getDU in interface SSAContextInterpreter

Returns:

DefUse for the IR that models the method context, or null if it's an unmodelled native method