Packages

trait GlobalEscape extends EscapeProperty

The object escapes globally, typically because it is assigned to a static variable or to a field of a heap object.

This property should be used if and only if the analysis is conclusive and could determine that the value definitively escapes globally. If a more advanced analysis – potentially run later – could identify an object as only EscapeViaParameter, EscapeInCallee or even NoEscape then the refineable property AtMost(NoEscape) (or another non final property) should be used.

Example:

  1. Given the following library code:

    public class X{
 public static Object o;
 public void m(boolean b) {
     Object o = new Object();        // ALLOCATION SITE
     if (b) X.o = o;
     return;
 }
}

    An analysis is only expected to return EscapeViaStaticField for the object o instantiated in m, if the analyses knows that m is called and the parameter b is potentially true. If the above code is found in a library, it may very well be the case that certain parameter values/combinations will never be used in a certain setting and – therefore – o does not escape. However, from a pure technical point-of-view it may be useful/necessary to use GlobalEscape at some point to let depending computations know that no more changes will happen and therefore the dependencies can be deleted.

See also

EscapeProperty for further details.

Linear Supertypes
EscapeProperty, EscapePropertyMetaInformation, ExplicitlyNamedProperty, OrderedProperty, Property, PropertyMetaInformation, PropertyKind, AnyRef, Any
Known Subclasses
EscapeViaHeapObject, EscapeViaStaticField, GlobalEscape
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. GlobalEscape
  2. EscapeProperty
  3. EscapePropertyMetaInformation
  4. ExplicitlyNamedProperty
  5. OrderedProperty
  6. Property
  7. PropertyMetaInformation
  8. PropertyKind
  9. AnyRef
  10. Any
  1. Hide All
  2. Show All
Visibility
  1. Public
  2. All

Type Members

  1. final type Self = EscapeProperty
    Definition Classes
    EscapePropertyMetaInformation → PropertyMetaInformation

Abstract Value Members

  1. abstract def meet(that: EscapeProperty): EscapeProperty

    Computes the greatest lower bound of this and that property values.

    Computes the greatest lower bound of this and that property values.

    that

    the other escape property value.

    returns

    the most restrictive escape that is less or equal restrictive than this and that.

    Definition Classes
    EscapeProperty
    See also

    EscapeProperty.lessOrEqualRestrictive

  2. abstract def propertyName: String
    Definition Classes
    ExplicitlyNamedProperty
  3. abstract def propertyValueID: Int

    A unique id for every escape property.

    A unique id for every escape property. Used for table switches.

    Definition Classes
    EscapeProperty

Concrete Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. def asAggregatedProperty: VirtualMethodEscapeProperty
    Definition Classes
    EscapeProperty
  5. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  6. final def asOrderedProperty: OrderedProperty
    Definition Classes
    Property
  7. def checkIsEqualOrBetterThan(e: Entity, other: Self): Unit
    Definition Classes
    EscapeProperty → OrderedProperty
  8. def clone(): AnyRef
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )
  9. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  10. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  11. def finalize(): Unit
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  12. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  13. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  14. final def id: Int
    Definition Classes
    PropertyMetaInformation → PropertyKind
  15. def isBottom: Boolean

    Is this the bottom value of the lattice, i.e.

    Is this the bottom value of the lattice, i.e. GlobalEscape, EscapeViaHeapObject or EscapeViaStaticField.

    Definition Classes
    GlobalEscape → EscapeProperty
  16. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  17. final def isOrderedProperty: Boolean
    Definition Classes
    Property
  18. def isTop: Boolean

    Is this the top value of the lattice, i.e.

    Is this the top value of the lattice, i.e. NoEscape.

    Definition Classes
    GlobalEscape → EscapeProperty
  19. final def key: PropertyKey[EscapeProperty]
    Definition Classes
    EscapeProperty → PropertyMetaInformation
  20. def lessOrEqualRestrictive(that: EscapeProperty): Boolean

    Tests if this property describes equal or less restricted escapes than the given property. That is if the lifetime OR access bound of the property is greater or equal than that.

    Tests if this property describes equal or less restricted escapes than the given property. That is if the lifetime OR access bound of the property is greater or equal than that. E.g., returns true if this property identifies values which GlobalEscape and the given property (that) refers to values that NoEscape.

    Definition Classes
    GlobalEscape → EscapeProperty
    See also

    EscapeProperty for further details.

  21. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  22. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  23. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  24. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  25. def toString(): String
    Definition Classes
    AnyRef → Any
  26. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  27. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  28. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )

Inherited from EscapeProperty

Inherited from EscapePropertyMetaInformation

Inherited from ExplicitlyNamedProperty

Inherited from OrderedProperty

Inherited from Property

Inherited from PropertyMetaInformation

Inherited from PropertyKind

Inherited from AnyRef

Inherited from Any

Ungrouped