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 Inliner[BT] to any2stringadd[Inliner[BT]] performed by method any2stringadd in scala.Predef.

   Definition Classes

   any2stringadd

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

   Implicit

   This member is added by an implicit conversion from Inliner[BT] to ArrowAssoc[Inliner[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.  def adaptPostRequestForMainCallsite(post: InlineRequest, mainCallsite: Callsite): List[InlineRequest]

   Given an InlineRequest(mainCallsite, post = List(postCallsite)), the postCallsite is a callsite in the method mainCallsite.callee.

   Given an InlineRequest(mainCallsite, post = List(postCallsite)), the postCallsite is a callsite in the method mainCallsite.callee. Once the mainCallsite is inlined into the target method (mainCallsite.callsiteMethod), we need to find the cloned callsite that corresponds to the postCallsite so we can inline that into the target method as well.

   However, it is possible that there is no cloned callsite at all that corresponds to the postCallsite, for example if the corresponding callsite already inlined. Example:

   def a() = 1 def b() = a() + 2 def c() = b() + 3 def d() = c() + 4

   We have the following callsite objects in the call graph:

   c1 = a() in b c2 = b() in c c3 = c() in d

   Assume we have the following inline request r = InlineRequest(c3, post = List(InlineRequest(c2, post = List(InlineRequest(c1, post = Nil)))))

   But before inlining r, assume a separate InlineRequest(c2, post = Nil) is inlined first. We get

   c1' = a() in c // added to the call graph c1.inlinedClones += (c1' at c2) // remember that c1' was created when inlining c2 ~c2~ // c2 is removed from the call graph

   If we now inline r, we first inline c3. We get

   c1 = a() in d // added to call graph c1'.inlinedClones += (c1 at c3) // remember that c1 was created when inlining c3 ~c3~

   Now we continue with the post-requests for r, i.e. c2.

   • we try to find the clone of c2 that was created when inlining c3 - but there is none. c2 was already inlined before
   • we continue with the post-request of c2: c1
     • we search for the callsite of c1 that was cloned when inlining c2, we find c1'
     • recursively we search for the callsite of c1' that was cloned when inlining c3, we find c1
     • so we create an inline request for c1
7.  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.

8.  val btypes: BT
9.  def canInlineBody(callsite: Callsite): Option[CannotInlineWarning]

   Check whether the body of the callee contains any instructions that prevent the callsite from being inlined.

   Check whether the body of the callee contains any instructions that prevent the callsite from being inlined. See also method earlyCanInlineCheck.

   The result of this check depends on changes to the callee method's body. For example, if the callee initially invokes a private method, it cannot be inlined into a different class. If the private method is inlined into the callee, inlining the callee becomes possible. Therefore we don't query it while traversing the call graph and selecting callsites to inline - it might rule out callsites that can be inlined just fine.

   returns

   Some(message) if inlining cannot be performed, None otherwise

10.  def classIsAccessible(accessed: BT.BType, from: BT.ClassBType): Either[OptimizerWarning, Boolean]

    Check if a type is accessible to some class, as defined in JVMS 5.4.4.

    Check if a type is accessible to some class, as defined in JVMS 5.4.4. (A1) C is public (A2) C and D are members of the same run-time package

11.  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

12.  def doRewriteTraitCallsite(callsite: Callsite): Boolean

    True for statically resolved trait callsites that should be rewritten to the static implementation method.

13.  def earlyCanInlineCheck(callsite: Callsite): Option[CannotInlineWarning]

    Check whether an inlining can be performed.

    Check whether an inlining can be performed. This method performs tests that don't change even if the body of the callee is changed by the inliner / optimizer, so it can be used early (when looking at the call graph and collecting inline requests for the program).

    The tests that inspect the callee's instructions are implemented in method canInlineBody, which is queried when performing an inline.

    returns

    Some(message) if inlining cannot be performed, None otherwise

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

    Implicit

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

    Definition Classes

    Ensuring

15.  def ensuring(cond: (Inliner[BT]) ⇒ Boolean): Inliner[BT]

    Implicit

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

    Definition Classes

    Ensuring

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

    Implicit

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

    Definition Classes

    Ensuring

17.  def ensuring(cond: Boolean): Inliner[BT]

    Implicit

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

    Definition Classes

    Ensuring

18.  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

19.  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

20.  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

21.  def findIllegalAccess(instructions: InsnList, calleeDeclarationClass: BT.ClassBType, destinationClass: BT.ClassBType): Option[(AbstractInsnNode, Option[OptimizerWarning])]

    Returns the first instruction in the instructions list that would cause a java.lang.IllegalAccessError when inlined into the destinationClass.

    Returns the first instruction in the instructions list that would cause a java.lang.IllegalAccessError when inlined into the destinationClass.

    If validity of some instruction could not be checked because an error occurred, the instruction is returned together with a warning message that describes the problem.

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

    Implicit

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

    Definition Classes

    StringFormat

    Annotations

    @inline()

23.  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

24.  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

25.  def inline(request: InlineRequest): List[CannotInlineWarning]

    Inline the callsite of an inlining request and its post-inlining requests.

    Inline the callsite of an inlining request and its post-inlining requests.

    returns

    An inliner warning for each callsite that could not be inlined.

26.  def inlineCallsite(callsite: Callsite): Unit

    Copy and adapt the instructions of a method to a callsite.

    Copy and adapt the instructions of a method to a callsite.

    Preconditions:

    • The callsite can safely be inlined (canInlineBody is true)
    • The maxLocals and maxStack values of the callsite method are correctly computed

    returns

    A map associating instruction nodes of the callee with the corresponding cloned instruction in the callsite method.

27.  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

28.  def memberIsAccessible(memberFlags: Int, memberDeclClass: BT.ClassBType, memberRefClass: BT.ClassBType, from: BT.ClassBType): Either[OptimizerWarning, Boolean]

    Check if a member reference is accessible from the destinationClass, as defined in the JVMS 5.4.4.

    Check if a member reference is accessible from the destinationClass, as defined in the JVMS 5.4.4. Note that the class name in a field / method reference is not necessarily the class in which the member is declared:

    class A { def f = 0 }; class B extends A { f }

    The INVOKEVIRTUAL instruction uses a method reference "B.f ()I". Therefore this method has two parameters:

    memberDeclClass

    The class in which the member is declared (A)

    memberRefClass

    The class used in the member reference (B) (B0) JVMS 5.4.3.2 / 5.4.3.3: when resolving a member of class C in D, the class C is resolved first. According to 5.4.3.1, this requires C to be accessible in D. JVMS 5.4.4 summary: A field or method R is accessible to a class D (destinationClass) iff (B1) R is public (B2) R is protected, declared in C (memberDeclClass) and D is a subclass of C. If R is not static, R must contain a symbolic reference to a class T (memberRefClass), such that T is either a subclass of D, a superclass of D, or D itself. Also (P) needs to be satisfied. (B3) R is either protected or has default access and declared by a class in the same run-time package as D. If R is protected, also (P) needs to be satisfied. (B4) R is private and is declared in D. (P) When accessing a protected instance member, the target object on the stack (the receiver) has to be a subtype of D (destinationClass). This is enforced by classfile verification (https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.10.1.8). TODO: we cannot currently implement (P) because we don't have the necessary information available. Once we have a type propagation analysis implemented, we can extract the receiver type from there (https://github.com/scala-opt/scala/issues/13).

29.  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

30.  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

31.  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

32.  def rewriteFinalTraitMethodInvocation(callsite: Callsite): Unit

    Rewrite the INVOKEINTERFACE callsite of a final trait method invocation to INVOKESTATIC of the corresponding method in the implementation class.

    Rewrite the INVOKEINTERFACE callsite of a final trait method invocation to INVOKESTATIC of the corresponding method in the implementation class. This enables inlining final trait methods.

    In a final trait method callsite, the callee is safeToInline and the callee method is abstract (the receiver type is the interface, so the method is abstract).

33.  def rewriteFinalTraitMethodInvocations(): Unit
34.  def runInliner(): Unit
35.  final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes

    AnyRef

36.  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

37.  final def wait(): Unit

    Definition Classes

    AnyRef

    Annotations

    @throws( ... )

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

    Definition Classes

    AnyRef

    Annotations

    @throws( ... )

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

    Definition Classes

    AnyRef

    Annotations

    @throws( ... )

40.  def →[B](y: B): (Inliner[BT], B)

    Implicit

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

    Definition Classes

    ArrowAssoc

41.  object callsiteOrdering extends Ordering[InlineRequest]

    Ordering for inline requests.

    Ordering for inline requests. Required to make the inliner deterministic:

    • Always remove the same request when breaking inlining cycles
    • Perform inlinings in a consistent order