Value Members

1.  final def !=(arg0: Any): Boolean

   Test two objects for inequality.

   Test two objects for inequality.

   returns

   true if !(this == that), false otherwise.

   Definition Classes

   AnyRef → Any

2.  final def ##(): Int

   Equivalent to x.hashCode except for boxed numeric types and null.

   Equivalent to x.hashCode except for boxed numeric types and null. For numerics, it returns a hash value which is consistent with value equality: if two value type instances compare as true, then ## will produce the same hash value for each of them. For null returns a hashcode where null.hashCode throws a NullPointerException.

   returns

   a hash value consistent with ==

   Definition Classes

   AnyRef → Any

3.  def +(other: String): String

   Implicit

   This member is added by an implicit conversion from CopyProp[BT] to any2stringadd[CopyProp[BT]] performed by method any2stringadd in scala.Predef.

   Definition Classes

   any2stringadd

4.  def ->[B](y: B): (CopyProp[BT], B)

   Implicit

   This member is added by an implicit conversion from CopyProp[BT] to ArrowAssoc[CopyProp[BT]] performed by method ArrowAssoc in scala.Predef.

   Definition Classes

   ArrowAssoc

   Annotations

   @inline()

5.  final def ==(arg0: Any): Boolean

   The expression x == that is equivalent to if (x eq null) that eq null else x.equals(that).

   The expression x == that is equivalent to if (x eq null) that eq null else x.equals(that).

   returns

   true if the receiver object is equivalent to the argument; false otherwise.

   Definition Classes

   AnyRef → Any

6.  final def asInstanceOf[T0]: T0

   Cast the receiver object to be of type T0.

   Cast the receiver object to be of type T0.

   Note that the success of a cast at runtime is modulo Scala's erasure semantics. Therefore the expression 1.asInstanceOf[String] will throw a ClassCastException at runtime, while the expression List(1).asInstanceOf[List[String]] will not. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the requested type.

   returns

   the receiver object.

   Definition Classes

   Any

   Exceptions thrown

   ClassCastException if the receiver object is not an instance of the erasure of type T0.

7.  val btypes: BT
8.  def clone(): AnyRef

   Create a copy of the receiver object.

   Create a copy of the receiver object.

   The default implementation of the clone method is platform dependent.

   returns

   a copy of the receiver object.

   Attributes

   protected[java.lang]

   Definition Classes

   AnyRef

   Annotations

   @throws( ... )

   Note

   not specified by SLS as a member of AnyRef

9.  def copyPropagation(method: MethodNode, owner: InternalName): Boolean

   For every xLOAD n, find all local variable slots that are aliases of n using an AliasingAnalyzer and change the instruction to xLOAD m where m is the smallest alias.

   For every xLOAD n, find all local variable slots that are aliases of n using an AliasingAnalyzer and change the instruction to xLOAD m where m is the smallest alias. This leaves behind potentially stale xSTORE n instructions, which are then eliminated by eliminateStaleStores.

10.  def eliminatePushPop(method: MethodNode, owner: InternalName): Boolean

    When a POP instruction has a single producer, remove the POP and eliminate the producer by bubbling up the POPs.

    When a POP instruction has a single producer, remove the POP and eliminate the producer by bubbling up the POPs. For example, given ILOAD 1; ILOAD 2; IADD; POP we first eliminate the POP, then the IADD, then its inputs, so the entire sequence goes away. If a producer cannot be eliminated (need to keep side-effects), a POP is inserted.

    A special case eliminates the creation of unused objects with side-effect-free constructors: NEW scala/Tuple1; DUP; ALOAD 0; INVOKESPECIAL scala/Tuple1.<init>; POP The POP has a single producer (the DUP), it's easy to eliminate these two. A special case is needed to eliminate the INVOKESPECIAL and NEW.

11.  def eliminateStaleStores(method: MethodNode, owner: InternalName): Boolean

    Eliminate xSTORE instructions that have no consumer.

    Eliminate xSTORE instructions that have no consumer. If the instruction can be completely eliminated, it is replaced by a POP. The eliminatePushPop cleans up unnecessary POPs.

    Note that an ASOTRE can not always be eliminated: it removes a reference to the object that is currently stored in that local, which potentially frees it for GC (SI-5313). Therefore we replace such stores by POP; ACONST_NULL; ASTORE x.

12.  def eliminateStoreLoad(method: MethodNode): Boolean

    Remove xSTORE n; xLOAD n paris if

    Remove xSTORE n; xLOAD n paris if

    • the local variable n is not used anywhere else in the method (1), and
    • there are no executable instructions and no live labels (jump targets) between the two (2)

    Note: store-load pairs that cannot be eliminated could be replaced by DUP; xSTORE n, but that's just cosmetic and doesn't help for anything.

    (1) This could be made more precise by running a prodCons analysis and checking that the load is the only user of the store. Then we could eliminate the pair even if the variable is live (except for ASTORE, SI-5313). Not needing an analyzer is more efficient, and catches most cases.

    (2) The implementation uses a conservative estimation for liveness (if some instruction uses local n, then n is considered live in the entire method). In return, it doesn't need to run an Analyzer on the method, making it more efficient.

    This method also removes ACONST_NULL; ASTORE n if the local n is not live. This pattern is introduced by eliminateStaleStores.

    The implementation is a little tricky to support the following case: ISTORE 1; ISTORE 2; ILOAD 2; ACONST_NULL; ASTORE 3; ILOAD 1 The outer store-load pair can be removed if two the inner pairs can be.

13.  def ensuring(cond: (CopyProp[BT]) ⇒ Boolean, msg: ⇒ Any): CopyProp[BT]

    Implicit

    This member is added by an implicit conversion from CopyProp[BT] to Ensuring[CopyProp[BT]] performed by method Ensuring in scala.Predef.

    Definition Classes

    Ensuring

14.  def ensuring(cond: (CopyProp[BT]) ⇒ Boolean): CopyProp[BT]

    Implicit

    This member is added by an implicit conversion from CopyProp[BT] to Ensuring[CopyProp[BT]] performed by method Ensuring in scala.Predef.

    Definition Classes

    Ensuring

15.  def ensuring(cond: Boolean, msg: ⇒ Any): CopyProp[BT]

    Implicit

    This member is added by an implicit conversion from CopyProp[BT] to Ensuring[CopyProp[BT]] performed by method Ensuring in scala.Predef.

    Definition Classes

    Ensuring

16.  def ensuring(cond: Boolean): CopyProp[BT]

    Implicit

    This member is added by an implicit conversion from CopyProp[BT] to Ensuring[CopyProp[BT]] performed by method Ensuring in scala.Predef.

    Definition Classes

    Ensuring

17.  final def eq(arg0: AnyRef): Boolean

    Tests whether the argument (that) is a reference to the receiver object (this).

    Tests whether the argument (that) is a reference to the receiver object (this).

    The eq method implements an equivalence relation on non-null instances of AnyRef, and has three additional properties:

    • It is consistent: for any non-null instances x and y of type AnyRef, multiple invocations of x.eq(y) consistently returns true or consistently returns false.
    • For any non-null instance x of type AnyRef, x.eq(null) and null.eq(x) returns false.
    • null.eq(null) returns true.

    When overriding the equals or hashCode methods, it is important to ensure that their behavior is consistent with reference equality. Therefore, if two objects are references to each other (o1 eq o2), they should be equal to each other (o1 == o2) and they should hash to the same value (o1.hashCode == o2.hashCode).

    returns

    true if the argument is a reference to the receiver object; false otherwise.

    Definition Classes

    AnyRef

18.  def equals(arg0: Any): Boolean

    The equality method for reference types.

    The equality method for reference types. Default implementation delegates to eq.

    See also equals in scala.Any.

    returns

    true if the receiver object is equivalent to the argument; false otherwise.

    Definition Classes

    AnyRef → Any

19.  def finalize(): Unit

    Called by the garbage collector on the receiver object when there are no more references to the object.

    Called by the garbage collector on the receiver object when there are no more references to the object.

    The details of when and if the finalize method is invoked, as well as the interaction between finalize and non-local returns and exceptions, are all platform dependent.

    Attributes

    protected[java.lang]

    Definition Classes

    AnyRef

    Annotations

    @throws( classOf[java.lang.Throwable] )

    Note

    not specified by SLS as a member of AnyRef

20.  def formatted(fmtstr: String): String

    Implicit

    This member is added by an implicit conversion from CopyProp[BT] to StringFormat[CopyProp[BT]] performed by method StringFormat in scala.Predef.

    Definition Classes

    StringFormat

    Annotations

    @inline()

21.  final def getClass(): Class[_]

    Returns the runtime class representation of the object.

    Returns the runtime class representation of the object.

    returns

    a class object corresponding to the runtime type of the receiver.

    Definition Classes

    AnyRef → Any

22.  def hashCode(): Int

    The hashCode method for reference types.

    The hashCode method for reference types. See hashCode in scala.Any.

    returns

    the hash code value for this object.

    Definition Classes

    AnyRef → Any

23.  final def isInstanceOf[T0]: Boolean

    Test whether the dynamic type of the receiver object is T0.

    Test whether the dynamic type of the receiver object is T0.

    Note that the result of the test is modulo Scala's erasure semantics. Therefore the expression 1.isInstanceOf[String] will return false, while the expression List(1).isInstanceOf[List[String]] will return true. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the specified type.

    returns

    true if the receiver object is an instance of erasure of type T0; false otherwise.

    Definition Classes

    Any

24.  final def ne(arg0: AnyRef): Boolean

    Equivalent to !(this eq that).

    Equivalent to !(this eq that).

    returns

    true if the argument is not a reference to the receiver object; false otherwise.

    Definition Classes

    AnyRef

25.  final def notify(): Unit

    Wakes up a single thread that is waiting on the receiver object's monitor.

    Wakes up a single thread that is waiting on the receiver object's monitor.

    Definition Classes

    AnyRef

    Note

    not specified by SLS as a member of AnyRef

26.  final def notifyAll(): Unit

    Wakes up all threads that are waiting on the receiver object's monitor.

    Wakes up all threads that are waiting on the receiver object's monitor.

    Definition Classes

    AnyRef

    Note

    not specified by SLS as a member of AnyRef

27.  final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes

    AnyRef

28.  def toString(): String

    Creates a String representation of this object.

    Creates a String representation of this object. The default representation is platform dependent. On the java platform it is the concatenation of the class name, "@", and the object's hashcode in hexadecimal.

    returns

    a String representation of the object.

    Definition Classes

    AnyRef → Any

29.  final def wait(): Unit

    Definition Classes

    AnyRef

    Annotations

    @throws( ... )

30.  final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes

    AnyRef

    Annotations

    @throws( ... )

31.  final def wait(arg0: Long): Unit

    Definition Classes

    AnyRef

    Annotations

    @throws( ... )

32.  def →[B](y: B): (CopyProp[BT], B)

    Implicit

    This member is added by an implicit conversion from CopyProp[BT] to ArrowAssoc[CopyProp[BT]] performed by method ArrowAssoc in scala.Predef.

    Definition Classes

    ArrowAssoc