com.oracle.graal.pointsto.flow

Class ConstantTypeFlow

java.lang.Object

com.oracle.graal.pointsto.flow.TypeFlow<BytecodePosition>

com.oracle.graal.pointsto.flow.ConstantTypeFlow

public class ConstantTypeFlow
extends TypeFlow<BytecodePosition>

Models a flow that introduces a constant in the type flow graph. Depending on the analysis policy this could be just the type of the constant, without the object identity.

Field Summary

Fields inherited from class com.oracle.graal.pointsto.flow.TypeFlow

declaredType, graphRef, id, inQueue, nextId, source, state

Constructor Summary

Constructors

Constructor and Description
ConstantTypeFlow(BytecodePosition position, AnalysisType type, TypeState constantState) Constant flow has an immutable type state.
ConstantTypeFlow(ConstantTypeFlow original, MethodFlowsGraph methodFlows)

Method Summary

Modifier and Type	Method and Description
TypeFlow<BytecodePosition>	copy(PointsToAnalysis bb, MethodFlowsGraph methodFlows) By default a type flow is not cloneable.
void	initFlow(PointsToAnalysis bb) Initialization code for some type flow corner cases.
boolean	needsInitialization() Type flows that require initialization after the graph is created need to override this method and return true.
String	toString()

Methods inherited from class com.oracle.graal.pointsto.flow.TypeFlow

addInput, addObservee, addObserver, addObserver, addState, addState, addUse, addUse, canSaturate, clearInputs, clearObservees, clearObservers, clearUses, declaredTypeFilter, declaredTypeFilter, doAddUse, equals, filter, filterUncheckedInterface, format, formatSource, getDeclaredType, getInputs, getObservees, getObservers, getSlot, getSource, getState, getUses, graphRef, hashCode, id, invalidate, isAllInstantiated, isClone, isContextInsensitive, isSaturated, isValid, method, notifyObserverOfSaturation, notifyUseOfSaturation, onInputSaturated, onObservedSaturated, onObservedUpdate, onSaturated, onSaturated, receiver, removeObserver, removeUse, replacedObservedWith, replaceObservedWith, setObserved, setSaturated, setSlot, setState, swapAtObserver, swapAtUse, swapOut, update

Methods inherited from class java.lang.Object

clone, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ConstantTypeFlow

public ConstantTypeFlow(BytecodePosition position,
                        AnalysisType type,
                        TypeState constantState)

Constant flow has an immutable type state.

ConstantTypeFlow

public ConstantTypeFlow(ConstantTypeFlow original,
                        MethodFlowsGraph methodFlows)

Method Detail

copy

public TypeFlow<BytecodePosition> copy(PointsToAnalysis bb,
                                       MethodFlowsGraph methodFlows)

Description copied from class: TypeFlow

By default a type flow is not cloneable.

Overrides:

copy in class TypeFlow<BytecodePosition>

initFlow

public void initFlow(PointsToAnalysis bb)

Description copied from class: TypeFlow

Initialization code for some type flow corner cases. TypeFlow.needsInitialization() also needs to be overridden to enable type flow initialization.

Overrides:

initFlow in class TypeFlow<BytecodePosition>

needsInitialization

public boolean needsInitialization()

Description copied from class: TypeFlow

Type flows that require initialization after the graph is created need to override this method and return true.

Overrides:

needsInitialization in class TypeFlow<BytecodePosition>

toString

public String toString()

Overrides:

toString in class TypeFlow<BytecodePosition>