Packages

  • package root
    Definition Classes
    root
  • package scala
    Definition Classes
    root
  • package reflect
    Definition Classes
    scala
  • package api

    EXPERIMENTAL

    EXPERIMENTAL

    The Scala Reflection API (located in scala-reflect.jar).

    In Scala 2.10.0, the Scala Reflection API and its implementation have an "experimental" status. This means that the API and the docs are not complete and can be changed in binary- and source-incompatible manner in 2.10.1. This also means that the implementation has some known issues.

    The following types are the backbone of the Scala Reflection API, and serve as a good starting point for information about Scala Reflection:

    For more information about Scala Reflection, see the Reflection Guide

    Definition Classes
    reflect
  • trait Internals extends AnyRef

    EXPERIMENTAL

    EXPERIMENTAL

    This trait assembles APIs occasionally necessary for performing low-level operations on reflection artifacts. See Internals#InternalApi for more information about nature, usefulness and compatibility guarantees of these APIs.

    Definition Classes
    api
  • trait InternalApi extends AnyRef

    Reflection API exhibits a tension inherent to experimental things: on the one hand we want it to grow into a beautiful and robust API, but on the other hand we have to deal with immaturity of underlying mechanisms by providing not very pretty solutions to enable important use cases.

    Reflection API exhibits a tension inherent to experimental things: on the one hand we want it to grow into a beautiful and robust API, but on the other hand we have to deal with immaturity of underlying mechanisms by providing not very pretty solutions to enable important use cases.

    In Scala 2.10, which was our first stab at reflection API, we didn't have a systematic approach to dealing with this tension, sometimes exposing too much of internals (e.g. Symbol.deSkolemize) and sometimes exposing too little (e.g. there's still no facility to change owners, to do typing transformations, etc). This resulted in certain confusion with some internal APIs living among public ones, scaring the newcomers, and some internal APIs only available via casting, which requires intimate knowledge of the compiler and breaks compatibility guarantees.

    This led to creation of the internal API module for the reflection API, which provides advanced APIs necessary for macros that push boundaries of the state of the art, clearly demarcating them from the more or less straightforward rest and providing compatibility guarantees on par with the rest of the reflection API (full compatibility within minor releases, best effort towards backward compatibility within major releases, clear replacement path in case of rare incompatible changes in major releases).

    The internal module itself (the value that implements InternalApi) isn't defined here, in scala.reflect.api.Universe, but is provided on per-implementation basis. Runtime API endpoint (scala.reflect.runtime.universe) provides universe.compat: InternalApi, whereas compile-time API endpoints (instances of scala.reflect.macros.Context) provide c.compat: ContextInternalApi, which extends InternalApi with additional universe-specific and context-specific functionality.

    Definition Classes
    Internals
  • DecoratorApi
  • Decorators

trait DecoratorApi extends AnyRef

Source
Internals.scala
See also

Decorators

Linear Supertypes
AnyRef, Any
Known Subclasses
MacroDecoratorApi
Type Hierarchy
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. DecoratorApi
  2. AnyRef
  3. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
  1. Hide All
  2. Show All
Visibility
  1. Public
  2. Protected

Type Members

  1. abstract type SymbolDecorator[T <: Universe.Symbol] <: SymbolDecoratorApi[T]

    Extension methods for symbols

  2. class SymbolDecoratorApi[T <: Universe.Symbol] extends AnyRef

    See also

    SymbolDecorator

  3. abstract type TreeDecorator[T <: Universe.Tree] <: TreeDecoratorApi[T]

    Extension methods for trees

  4. class TreeDecoratorApi[T <: Universe.Tree] extends AnyRef

    See also

    TreeDecorator

  5. abstract type TypeDecorator[T <: Universe.Type] <: TypeDecoratorApi[T]

    Extension methods for types

  6. implicit class TypeDecoratorApi[T <: Universe.Type] extends AnyRef

    See also

    TypeDecorator

Abstract Value Members

  1. implicit abstract def symbolDecorator[T <: Universe.Symbol](symbol: T): SymbolDecorator[T]

    See also

    SymbolDecorator

  2. implicit abstract def treeDecorator[T <: Universe.Tree](tree: T): TreeDecorator[T]

    See also

    TreeDecorator

  3. implicit abstract def typeDecorator[T <: Universe.Type](tp: T): TypeDecorator[T]

    See also

    TypeDecorator

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 DecoratorApi toany2stringadd[DecoratorApi] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (DecoratorApi, B)
    Implicit
    This member is added by an implicit conversion from DecoratorApi toArrowAssoc[DecoratorApi] 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 clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  8. def ensuring(cond: (DecoratorApi) => Boolean, msg: => Any): DecoratorApi
    Implicit
    This member is added by an implicit conversion from DecoratorApi toEnsuring[DecoratorApi] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  9. def ensuring(cond: (DecoratorApi) => Boolean): DecoratorApi
    Implicit
    This member is added by an implicit conversion from DecoratorApi toEnsuring[DecoratorApi] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  10. def ensuring(cond: Boolean, msg: => Any): DecoratorApi
    Implicit
    This member is added by an implicit conversion from DecoratorApi toEnsuring[DecoratorApi] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  11. def ensuring(cond: Boolean): DecoratorApi
    Implicit
    This member is added by an implicit conversion from DecoratorApi toEnsuring[DecoratorApi] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  12. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  13. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  14. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable])
  15. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  16. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  17. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  18. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  19. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  20. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  21. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  22. def toString(): String
    Definition Classes
    AnyRef → Any
  23. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  24. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  25. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()

Deprecated Value Members

  1. def formatted(fmtstr: String): String
    Implicit
    This member is added by an implicit conversion from DecoratorApi toStringFormat[DecoratorApi] 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.

  2. def →[B](y: B): (DecoratorApi, B)
    Implicit
    This member is added by an implicit conversion from DecoratorApi toArrowAssoc[DecoratorApi] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @deprecated
    Deprecated

    (Since version 2.13.0) Use -> instead. If you still wish to display it as one character, consider using a font with programming ligatures such as Fira Code.

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd fromDecoratorApi to any2stringadd[DecoratorApi]

Inherited by implicit conversion StringFormat fromDecoratorApi to StringFormat[DecoratorApi]

Inherited by implicit conversion Ensuring fromDecoratorApi to Ensuring[DecoratorApi]

Inherited by implicit conversion ArrowAssoc fromDecoratorApi to ArrowAssoc[DecoratorApi]

Ungrouped