scala.tools.nsc.backend.icode.analysis.CopyPropagation

# CopyAnalysis

#### final class CopyAnalysis extends DataFlowAnalysis[copyLattice.type]

Source
  CopyPropagation.scala

Linear Supertypes
DataFlowAnalysis[copyLattice.type], AnyRef, Any
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Inherited

1. CopyAnalysis
2. DataFlowAnalysis
3. AnyRef
4. Any

Implicitly

1. by any2stringadd
2. by StringFormat
3. by Ensuring
4. by ArrowAssoc

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### Instance Constructors

1. #### new CopyAnalysis()

### Type Members

1. #### type P = Global.icodes.BasicBlock

   A type for program points.

   A type for program points.

   Definition Classes
     CopyAnalysis → DataFlowAnalysis

### Value Members

1. #### final def !=(arg0: Any): Boolean

   Definition Classes
     AnyRef → Any

2. #### final def ##(): Int

   Definition Classes
     AnyRef → Any

3. #### def +(other: String): String

   Implicit information
     This member is added by an implicit conversion from CopyAnalysis to any2stringadd[CopyAnalysis] performed by method any2stringadd in scala.Predef.
   Definition Classes
     any2stringadd

4. #### def ->[B](y: B): (CopyAnalysis, B)

   Implicit information
     This member is added by an implicit conversion from CopyAnalysis to ArrowAssoc[CopyAnalysis] performed by method ArrowAssoc in scala.Predef.
   Definition Classes
     ArrowAssoc
   Annotations
     @inline()

5. #### final def ==(arg0: Any): Boolean

   Definition Classes
     AnyRef → Any

6. #### final def asInstanceOf[T0]: T0

   Definition Classes
     Any

7. #### def backwardAnalysis(f: (P, Elem) ⇒ Elem): Unit

   Definition Classes
     DataFlowAnalysis

8. #### def blockTransfer(b: Global.icodes.BasicBlock, in: Elem): Elem

9. #### final def cleanReferencesTo(s: State, target: Location): Unit

   Remove all references to this local variable from both stack and bindings.

   Remove all references to this local variable from both stack and bindings. It is called when a new assignment destroys previous copy-relations.

10. #### def clone(): AnyRef

    Attributes
      protected[java.lang]
    Definition Classes
      AnyRef
    Annotations
      @throws( ... )

11. #### def ensuring(cond: (CopyAnalysis) ⇒ Boolean, msg: ⇒ Any): CopyAnalysis

    Implicit information
      This member is added by an implicit conversion from CopyAnalysis to Ensuring[CopyAnalysis] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring

12. #### def ensuring(cond: (CopyAnalysis) ⇒ Boolean): CopyAnalysis

    Implicit information
      This member is added by an implicit conversion from CopyAnalysis to Ensuring[CopyAnalysis] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring

13. #### def ensuring(cond: Boolean, msg: ⇒ Any): CopyAnalysis

    Implicit information
      This member is added by an implicit conversion from CopyAnalysis to Ensuring[CopyAnalysis] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring

14. #### def ensuring(cond: Boolean): CopyAnalysis

    Implicit information
      This member is added by an implicit conversion from CopyAnalysis to Ensuring[CopyAnalysis] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring

15. #### final def eq(arg0: AnyRef): Boolean

    Definition Classes
      AnyRef

16. #### def equals(arg0: Any): Boolean

    Definition Classes
      AnyRef → Any

17. #### def finalize(): Unit

    Attributes
      protected[java.lang]
    Definition Classes
      AnyRef
    Annotations
      @throws( classOf[java.lang.Throwable] )

18. #### def formatted(fmtstr: String): String

    Implicit information
      This member is added by an implicit conversion from CopyAnalysis to StringFormat[CopyAnalysis] performed by method StringFormat in scala.Predef.
    Definition Classes
      StringFormat
    Annotations
      @inline()

19. #### def forwardAnalysis(f: (P, Elem) ⇒ Elem): Unit

    Implements forward dataflow analysis: the transfer function is applied when inputs to a Program point change, to obtain the new output value.

    Implements forward dataflow analysis: the transfer function is applied when inputs to a Program point change, to obtain the new output value.

    f

      the transfer function.

    Definition Classes
      DataFlowAnalysis

20. #### final def getClass(): Class[_]

    Definition Classes
      AnyRef → Any

21. #### def hashCode(): Int

    Definition Classes
      AnyRef → Any

22. #### val in: Map[P, Elem]

    Definition Classes
      DataFlowAnalysis

23. #### def init(m: Global.icodes.IMethod): Unit

24. #### def init(f: ⇒ Unit): Unit

    Definition Classes
      DataFlowAnalysis

25. #### def interpret(in: Elem, i: Global.icodes.Instruction): Elem

    Abstract interpretation for one instruction.

26. #### final def invalidateRecords(state: State): Unit

    Drop everything known about mutable record fields.

    Drop everything known about mutable record fields.

    A simple escape analysis would help here. Some of the records we track never leak to other methods, therefore they can not be changed. We should not drop their bindings in this case. A closure object would be such an example. Some complications:

    - outer pointers. An closure escapes as an outer pointer to another nested closure.

27. #### final def isInstanceOf[T0]: Boolean

    Definition Classes
      Any

28. #### final def isPureMethod(m: Global.Symbol): Boolean

    Is symbol `m` a pure method?

29. #### var iterations: Int

    the number of times we iterated before reaching a fixpoint.

    the number of times we iterated before reaching a fixpoint.

    Definition Classes
      DataFlowAnalysis

30. #### val lattice: copyLattice.type

    Definition Classes
      CopyAnalysis → DataFlowAnalysis

31. #### var method: Global.icodes.IMethod

32. #### final def ne(arg0: AnyRef): Boolean

    Definition Classes
      AnyRef

33. #### final def notify(): Unit

    Definition Classes
      AnyRef

34. #### final def notifyAll(): Unit

    Definition Classes
      AnyRef

35. #### val out: Map[P, Elem]

    Definition Classes
      DataFlowAnalysis

36. #### def run(): Unit

    Definition Classes
      CopyAnalysis → DataFlowAnalysis

37. #### final def simulateCall(state: State, method: Global.Symbol, static: Boolean): State

    Update the state `s` after the call to `method`.

    Update the state `s` after the call to `method`. The stack elements are dropped and replaced by the result of the call. If the method is impure, all bindings to record fields are cleared.

38. #### var stat: Boolean

    collect statistics?

    collect statistics?

    Definition Classes
      DataFlowAnalysis

39. #### final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
      AnyRef

40. #### final def toString(): String

    Definition Classes
      CopyAnalysis → AnyRef → Any

41. #### val visited: HashSet[P]

    Definition Classes
      DataFlowAnalysis

42. #### final def wait(): Unit

    Definition Classes
      AnyRef
    Annotations
      @throws( ... )

43. #### final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
      AnyRef
    Annotations
      @throws( ... )

44. #### final def wait(arg0: Long): Unit

    Definition Classes
      AnyRef
    Annotations
      @throws( ... )

45. #### val worklist: Set[P]

    Definition Classes
      DataFlowAnalysis

46. #### def →[B](y: B): (CopyAnalysis, B)

    Implicit information
      This member is added by an implicit conversion from CopyAnalysis to ArrowAssoc[CopyAnalysis] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
      ArrowAssoc

### Inherited from DataFlowAnalysis[copyLattice.type]

### Inherited from AnyRef

### Inherited from Any

### Inherited by implicit conversion any2stringadd from CopyAnalysis to any2stringadd[CopyAnalysis]

### Inherited by implicit conversion StringFormat from CopyAnalysis to StringFormat[CopyAnalysis]

### Inherited by implicit conversion Ensuring from CopyAnalysis to Ensuring[CopyAnalysis]

### Inherited by implicit conversion ArrowAssoc from CopyAnalysis to ArrowAssoc[CopyAnalysis]

### Ungrouped