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scala.tools.nsc.transform.ExplicitOuter

ExplicitOuterTransformer

class ExplicitOuterTransformer extends OuterPathTransformer

The phase performs the following transformations (more or less...):

(1) An class which is not an interface and is not static gets an outer accessor (@see outerDefs). (1a) A class which is not a trait gets an outer field.

(4) A constructor of a non-trait inner class gets an outer parameter.

(5) A reference C.this where C refers to an outer class is replaced by a selection this.$outer$$C1 ... .$outer$$Cn (@see outerPath)

(7) A call to a constructor Q.(args) or Q.$init$(args) where Q != this and the constructor belongs to a non-static class is augmented by an outer argument. E.g. Q.(OUTER, args) where OUTER is the qualifier corresponding to the singleton type Q.

(8) A call to a constructor this.(args) in a secondary constructor is augmented to this.(OUTER, args) where OUTER is the last parameter of the secondary constructor.

(9) Remove private modifier from class members M that are accessed from an inner class.

(10) Remove protected modifier from class members M that are accessed without a super qualifier accessed from an inner class or trait.

(11) Remove private and protected modifiers from type symbols

Note: The whole transform is run in phase explicitOuter.next.

TODO: Make this doc reflect what's actually going on. Some of the deviations are motivated by separate compilation (name mangling based on usage is inherently unstable). Now that traits are compiled 1:1 to interfaces, they can have private members, so there's also less need to make trait members non-private (they still may need to be implemented in subclasses, though we could make those protected...).

Self Type
ExplicitOuterTransformer
Source
ExplicitOuter.scala
Linear Supertypes
OuterPathTransformer, Global.UnderConstructionTransformer, ExplicitOuter.TypingTransformer, Global.Transformer, Global.Transformer, AnyRef, Any
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. ExplicitOuterTransformer
  2. OuterPathTransformer
  3. UnderConstructionTransformer
  4. TypingTransformer
  5. Transformer
  6. Transformer
  7. AnyRef
  8. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
  1. Hide All
  2. Show All
Visibility
  1. Public
  2. All

Instance Constructors

  1. new ExplicitOuterTransformer(unit: Global.CompilationUnit)

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
    This member is added by an implicit conversion from ExplicitOuterTransformer to any2stringadd[ExplicitOuterTransformer] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (ExplicitOuterTransformer, B)
    Implicit
    This member is added by an implicit conversion from ExplicitOuterTransformer to ArrowAssoc[ExplicitOuterTransformer] 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 atOwner[A](tree: Global.Tree, owner: Global.Symbol)(trans: ⇒ A): A
    Definition Classes
    TypingTransformer
  8. final def atOwner[A](owner: Global.Symbol)(trans: ⇒ A): A
    Definition Classes
    TypingTransformer → Transformer
  9. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  10. var curTree: Global.Tree
    Attributes
    protected
    Definition Classes
    TypingTransformer
  11. def currentClass: Global.Symbol
    Attributes
    protected
    Definition Classes
    Transformer
  12. def currentMethod: Global.Symbol
    Attributes
    protected
    Definition Classes
    Transformer
  13. var currentOwner: Global.Symbol
    Attributes
    protected[scala]
    Definition Classes
    Transformer
  14. def ensuring(cond: (ExplicitOuterTransformer) ⇒ Boolean, msg: ⇒ Any): ExplicitOuterTransformer
    Implicit
    This member is added by an implicit conversion from ExplicitOuterTransformer to Ensuring[ExplicitOuterTransformer] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  15. def ensuring(cond: (ExplicitOuterTransformer) ⇒ Boolean): ExplicitOuterTransformer
    Implicit
    This member is added by an implicit conversion from ExplicitOuterTransformer to Ensuring[ExplicitOuterTransformer] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  16. def ensuring(cond: Boolean, msg: ⇒ Any): ExplicitOuterTransformer
    Implicit
    This member is added by an implicit conversion from ExplicitOuterTransformer to Ensuring[ExplicitOuterTransformer] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  17. def ensuring(cond: Boolean): ExplicitOuterTransformer
    Implicit
    This member is added by an implicit conversion from ExplicitOuterTransformer to Ensuring[ExplicitOuterTransformer] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  18. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  19. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  20. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  21. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  22. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  23. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  24. def isUnderConstruction(clazz: Global.Symbol): Boolean
    Attributes
    protected
    Definition Classes
    UnderConstructionTransformer
  25. var localTyper: (analyzer)#Typer
    Definition Classes
    TypingTransformer
  26. def mixinOuterAccessorDef(mixinClass: Global.Symbol): Global.Tree

    The definition tree of the outer accessor for class mixinClass.

    The definition tree of the outer accessor for class mixinClass.

    mixinClass

    The mixin class which defines the abstract outer accessor which is implemented by the generated one.

  27. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  28. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  29. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  30. def outerAccessorDef: Global.Tree

    The definition tree of the outer accessor of current class

  31. def outerFieldDef: Global.Tree

    The definition tree of the outer accessor of current class

  32. var outerParam: Global.Symbol

    The directly enclosing outer parameter, if we are in a constructor

    The directly enclosing outer parameter, if we are in a constructor

    Attributes
    protected
    Definition Classes
    OuterPathTransformer
  33. def outerPath(base: Global.Tree, from: Global.Symbol, to: Global.Symbol): Global.Tree

    The path 

    `base'.$outer$$C1 ... .$outer$$Cn
    which refers to the outer instance of class to of value base.

    The path 

    `base'.$outer$$C1 ... .$outer$$Cn
    which refers to the outer instance of class to of value base. The result is typed but not positioned.

    base'.$outer$$C1 ... .$outer$$Cn which refers to the outer instance of class to of value base. The result is typed but not positioned.

    Attributes
    protected
    Definition Classes
    OuterPathTransformer
  34. def outerValue: Global.Tree

    The first outer selection from currently transformed tree.

    The first outer selection from currently transformed tree. The result is typed but not positioned.

    Will return EmptyTree if there is no outer accessor because of a premature self reference.

    Attributes
    protected
    Definition Classes
    OuterPathTransformer
  35. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  36. def toString(): String
    Definition Classes
    AnyRef → Any
  37. def transform(tree: Global.Tree): Global.Tree

    The main transformation method

    The main transformation method

    Definition Classes
    ExplicitOuterTransformer → OuterPathTransformer → UnderConstructionTransformer → TypingTransformer → Transformer
  38. def transformAtOwner(owner: Global.Symbol, tree: Global.Tree): Global.Tree
    Definition Classes
    TypingTransformer
  39. def transformCaseDefs(trees: List[Global.CaseDef]): List[Global.CaseDef]
    Definition Classes
    Transformer
  40. def transformIdents(trees: List[Global.Ident]): List[Global.Ident]
    Definition Classes
    Transformer
  41. def transformMemberDefs(trees: List[Global.MemberDef]): List[Global.MemberDef]
    Definition Classes
    Transformer
  42. def transformModifiers(mods: Global.Modifiers): Global.Modifiers
    Definition Classes
    Transformer
  43. def transformStats(stats: List[Global.Tree], exprOwner: Global.Symbol): List[Global.Tree]
    Definition Classes
    Transformer
  44. def transformTemplate(tree: Global.Template): Global.Template
    Definition Classes
    Transformer
  45. def transformTrees(trees: List[Global.Tree]): List[Global.Tree]
    Definition Classes
    Transformer
  46. def transformTypeDefs(trees: List[Global.TypeDef]): List[Global.TypeDef]
    Definition Classes
    Transformer
  47. def transformUnit(unit: Global.CompilationUnit): Unit

    The transformation method for whole compilation units

    The transformation method for whole compilation units

    Definition Classes
    ExplicitOuterTransformer → Transformer
  48. def transformValDef(tree: Global.ValDef): Global.ValDef
    Definition Classes
    Transformer
  49. def transformValDefs(trees: List[Global.ValDef]): List[Global.ValDef]
    Definition Classes
    Transformer
  50. def transformValDefss(treess: List[List[Global.ValDef]]): List[List[Global.ValDef]]
    Definition Classes
    Transformer
  51. val treeCopy: Global.TreeCopier
    Definition Classes
    Transformer
  52. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  53. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  54. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  55. def →[B](y: B): (ExplicitOuterTransformer, B)
    Implicit
    This member is added by an implicit conversion from ExplicitOuterTransformer to ArrowAssoc[ExplicitOuterTransformer] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Deprecated Value Members

  1. def formatted(fmtstr: String): String
    Implicit
    This member is added by an implicit conversion from ExplicitOuterTransformer to StringFormat[ExplicitOuterTransformer] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @deprecated @inline()
    Deprecated

    (Since version 2.12.16) Use formatString.format(value) instead of value.formatted(formatString), or use the f"" string interpolator. In Java 15 and later, formatted resolves to the new method in String which has reversed parameters.

Inherited from OuterPathTransformer

Inherited from Global.UnderConstructionTransformer

Inherited from ExplicitOuter.TypingTransformer

Inherited from Global.Transformer

Inherited from Global.Transformer

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from ExplicitOuterTransformer to any2stringadd[ExplicitOuterTransformer]

Inherited by implicit conversion StringFormat from ExplicitOuterTransformer to StringFormat[ExplicitOuterTransformer]

Inherited by implicit conversion Ensuring from ExplicitOuterTransformer to Ensuring[ExplicitOuterTransformer]

Inherited by implicit conversion ArrowAssoc from ExplicitOuterTransformer to ArrowAssoc[ExplicitOuterTransformer]

Ungrouped