Scala Compiler2.12.7 < Back
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# Packages

-  package root

  The Scala compiler and reflection APIs.

  The Scala compiler and reflection APIs.

  Definition Classes
    root
-  package scala
  Definition Classes
    root
-  package tools
  Definition Classes
    scala
-  package nsc
  Definition Classes
    tools
-  package transform
  Definition Classes
    nsc
-  package patmat
  Definition Classes
    transform
- AccessorSynthesis
- CleanUp
- Constructors
- Delambdafy
- Erasure
- ExplicitOuter
- ExtensionMethods
- Fields
- Flatten
- InfoTransform
- LambdaLift
- Mixin
- OverridingPairs
- PostErasure
- SampleTransform
- SpecializeTypes
- Statics
- TailCalls
- Transform
- TypeAdaptingTransformer
- TypingTransformers
- UnCurry

t

scala.tools.nsc.transform

# InfoTransform 

###

#### trait InfoTransform extends SubComponent with Transform

An InfoTransform contains a compiler phase that transforms trees and symbol infos -- making sure they stay consistent. The symbol info is transformed assuming it is consistent right before this phase. The info transformation is triggered by Symbol::rawInfo, which caches the results in the symbol's type history. This way sym.info (during an enteringPhase(p)) can look up what the symbol's info should look like at the beginning of phase p. (If the transformed info had not been stored yet, rawInfo will compute the info by composing the info-transformers of the most recent phase before p, up to the transformer of the phase right before p.)

Concretely, enteringPhase(p) { sym.info } yields the info *before* phase p has transformed it. Imagine you're a phase and it all makes sense.

Source
  InfoTransform.scala

Linear Supertypes
Transform, SubComponent, AnyRef, Any
Known Subclasses
erasure, explicitOuter, fields, flatten, lambdaLift, mixer, postErasure, specializeTypes, uncurry, Erasure, ExplicitOuter, Fields, Flatten, LambdaLift, Mixin, PostErasure, SpecializeTypes, UnCurry
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Ordering

1. Alphabetic
2. By Inheritance

Inherited

1. InfoTransform
2. Transform
3. SubComponent
4. AnyRef
5. Any

Implicitly

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

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Visibility

1. Public
2. All

### Type Members

1.  abstract class StdPhase extends GlobalPhase

   A standard phase template

   A standard phase template

   Definition Classes
     SubComponent
2.  class Phase extends InfoTransform.Phase

### Abstract Value Members

1.  abstract val global: Global

   The global environment; overridden by instantiation in Global.

   The global environment; overridden by instantiation in Global.

   Definition Classes
     SubComponent
2.  abstract def newTransformer(unit: Global.CompilationUnit): Global.Transformer

   The transformer factory

   The transformer factory

   Attributes
     protected
   Definition Classes
     Transform
3.  abstract val phaseName: String

   The name of the phase

   The name of the phase

   Definition Classes
     SubComponent
4.  abstract val runsAfter: List[String]

   Names of phases that must run before this phase.

   Names of phases that must run before this phase.

   Definition Classes
     SubComponent
5.  abstract val runsRightAfter: Option[String]

   Name of the phase that this phase must follow immediately.

   Name of the phase that this phase must follow immediately.

   Definition Classes
     SubComponent
6.  abstract def transformInfo(sym: Global.Symbol, tpe: Global.Type): Global.Type

### Concrete 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 InfoTransform to any2stringadd[InfoTransform] performed by method any2stringadd in scala.Predef.
   Definition Classes
     any2stringadd
4.  def ->[B](y: B): (InfoTransform, B)
   Implicit
     This member is added by an implicit conversion from InfoTransform to ArrowAssoc[InfoTransform] 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 afterOwnPhase[T](op: ⇒ T): T
   Definition Classes
     SubComponent
   Annotations
     @inline()
7.  final def asInstanceOf[T0]: T0
   Definition Classes
     Any
8.  final def beforeOwnPhase[T](op: ⇒ T): T
   Definition Classes
     SubComponent
   Annotations
     @inline()
9.  def changesBaseClasses: Boolean
   Attributes
     protected
10.  def clone(): AnyRef
    Attributes
      protected[java.lang]
    Definition Classes
      AnyRef
    Annotations
      @native() @throws( ... )
11.  def enabled: Boolean

    Is this component enabled? Default is true.

    Is this component enabled? Default is true.

    Definition Classes
      SubComponent
12.  def ensuring(cond: (InfoTransform) ⇒ Boolean, msg: ⇒ Any): InfoTransform
    Implicit
      This member is added by an implicit conversion from InfoTransform to Ensuring[InfoTransform] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
13.  def ensuring(cond: (InfoTransform) ⇒ Boolean): InfoTransform
    Implicit
      This member is added by an implicit conversion from InfoTransform to Ensuring[InfoTransform] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
14.  def ensuring(cond: Boolean, msg: ⇒ Any): InfoTransform
    Implicit
      This member is added by an implicit conversion from InfoTransform to Ensuring[InfoTransform] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
15.  def ensuring(cond: Boolean): InfoTransform
    Implicit
      This member is added by an implicit conversion from InfoTransform to Ensuring[InfoTransform] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
16.  final def eq(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef
17.  def equals(arg0: Any): Boolean
    Definition Classes
      AnyRef → Any
18.  def finalize(): Unit
    Attributes
      protected[java.lang]
    Definition Classes
      AnyRef
    Annotations
      @throws( classOf[java.lang.Throwable] )
19.  def formatted(fmtstr: String): String
    Implicit
      This member is added by an implicit conversion from InfoTransform to StringFormat[InfoTransform] performed by method StringFormat in scala.Predef.
    Definition Classes
      StringFormat
    Annotations
      @inline()
20.  final def getClass(): Class[_]
    Definition Classes
      AnyRef → Any
    Annotations
      @native()
21.  def hashCode(): Int

    SubComponent are added to a HashSet and two phases are the same if they have the same name

    SubComponent are added to a HashSet and two phases are the same if they have the same name

    Definition Classes
      SubComponent → AnyRef → Any
22.  val initial: Boolean

    True if this phase runs before all other phases.

    True if this phase runs before all other phases. Usually, `parser`.

    Definition Classes
      SubComponent
23.  val internal: Boolean

    True if this phase is not provided by a plug-in.

    True if this phase is not provided by a plug-in.

    Definition Classes
      SubComponent
24.  final def isInstanceOf[T0]: Boolean
    Definition Classes
      Any
25.  def keepsTypeParams: Boolean
    Attributes
      protected
26.  final def ne(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef
27.  def newPhase(prev: nsc.Phase): StdPhase

    Create a new phase which applies transformer

    Create a new phase which applies transformer

    Definition Classes
      InfoTransform → Transform → SubComponent
28.  final def notify(): Unit
    Definition Classes
      AnyRef
    Annotations
      @native()
29.  final def notifyAll(): Unit
    Definition Classes
      AnyRef
    Annotations
      @native()
30.  def ownPhase: nsc.Phase

    The phase corresponding to this subcomponent in the current compiler run

    The phase corresponding to this subcomponent in the current compiler run

    Definition Classes
      SubComponent
31.  def phaseNewFlags: Long

    New flags defined by the phase which are not valid before

    New flags defined by the phase which are not valid before

    Definition Classes
      SubComponent
32.  def phaseNextFlags: Long

    New flags defined by the phase which are not valid until immediately after it

    New flags defined by the phase which are not valid until immediately after it

    Definition Classes
      SubComponent
33.  val requires: List[String]

    Names of phases required by this component.

    Names of phases required by this component. Default is `Nil`.

    Definition Classes
      SubComponent
34.  val runsBefore: List[String]

    Names of phases that must run after this phase.

    Names of phases that must run after this phase. Default is `Nil`.

    Definition Classes
      SubComponent
35.  final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
      AnyRef
36.  val terminal: Boolean

    True if this phase runs after all other phases.

    True if this phase runs after all other phases. Usually, `terminal`.

    Definition Classes
      SubComponent
37.  def toString(): String
    Definition Classes
      AnyRef → Any
38.  final def wait(): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws( ... )
39.  final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws( ... )
40.  final def wait(arg0: Long): Unit
    Definition Classes
      AnyRef
    Annotations
      @native() @throws( ... )
41.  def →[B](y: B): (InfoTransform, B)
    Implicit
      This member is added by an implicit conversion from InfoTransform to ArrowAssoc[InfoTransform] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
      ArrowAssoc

### Inherited from Transform

### Inherited from SubComponent

### Inherited from AnyRef

### Inherited from Any

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

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

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

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

### Ungrouped