org.checkerframework.dataflow.analysis

Class FlowExpressions.Unknown

java.lang.Object

org.checkerframework.dataflow.analysis.FlowExpressions.Receiver

org.checkerframework.dataflow.analysis.FlowExpressions.Unknown

Enclosing class:

FlowExpressions

public static class FlowExpressions.Unknown
extends FlowExpressions.Receiver

Field Summary

Fields inherited from class org.checkerframework.dataflow.analysis.FlowExpressions.Receiver

type

Constructor Summary

Constructors

Constructor and Description
Unknown(TypeMirror type)

Method Summary

Modifier and Type	Method and Description
boolean	containsModifiableAliasOf(Store<?> store, FlowExpressions.Receiver other) Returns true if and only if other appears anywhere in this receiver or an expression appears in this receiver such that other might alias this expression, and that expression is modifiable.
boolean	containsOfClass(Class<? extends FlowExpressions.Receiver> clazz)
boolean	equals(Object obj)
int	hashCode()
boolean	isUnassignableByOtherCode() Returns true if and only if the value this expression stands for cannot be changed (with respect to ==) by a method call.
boolean	isUnmodifiableByOtherCode() Returns true if and only if the value this expression stands for cannot be changed by a method call, including changes to any of its fields.
String	toString()

Methods inherited from class org.checkerframework.dataflow.analysis.FlowExpressions.Receiver

containsSyntacticEqualReceiver, containsUnknown, getType, syntacticEquals

Methods inherited from class java.lang.Object

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

Constructor Detail

Unknown

public Unknown(TypeMirror type)

Method Detail

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

containsModifiableAliasOf

public boolean containsModifiableAliasOf(Store<?> store,
                                         FlowExpressions.Receiver other)

Description copied from class: FlowExpressions.Receiver

Returns true if and only if other appears anywhere in this receiver or an expression appears in this receiver such that other might alias this expression, and that expression is modifiable.

This is always true, except for cases where the Java type information prevents aliasing and none of the subexpressions can alias 'other'.

Overrides:

containsModifiableAliasOf in class FlowExpressions.Receiver

containsOfClass

public boolean containsOfClass(Class<? extends FlowExpressions.Receiver> clazz)

Specified by:

containsOfClass in class FlowExpressions.Receiver

isUnassignableByOtherCode

public boolean isUnassignableByOtherCode()

Description copied from class: FlowExpressions.Receiver

Returns true if and only if the value this expression stands for cannot be changed (with respect to ==) by a method call. This is the case for local variables, the self reference as well as final field accesses for whose receiver FlowExpressions.Receiver.isUnassignableByOtherCode() is true.

Specified by:

isUnassignableByOtherCode in class FlowExpressions.Receiver

See Also:

FlowExpressions.Receiver.isUnmodifiableByOtherCode()

isUnmodifiableByOtherCode

public boolean isUnmodifiableByOtherCode()

Description copied from class: FlowExpressions.Receiver

Returns true if and only if the value this expression stands for cannot be changed by a method call, including changes to any of its fields.

Approximately, this returns true if the expression is FlowExpressions.Receiver.isUnassignableByOtherCode() and its type is immutable.

Specified by:

isUnmodifiableByOtherCode in class FlowExpressions.Receiver

See Also:

FlowExpressions.Receiver.isUnassignableByOtherCode()