scala.reflect.api.StandardDefinitions

# DefinitionsApi

###
Related Doc: package StandardDefinitions

#### trait DefinitionsApi extends Universe.StandardTypes

Defines standard symbols (and types via its base trait).

Source
  StandardDefinitions.scala

Linear Supertypes
Universe.StandardTypes, AnyRef, Any
Type Hierarchy
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1. Alphabetic
2. By Inheritance

Inherited

1. DefinitionsApi
2. StandardTypes
3. AnyRef
4. 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 VarArityClassApi extends (Int) ⇒ Universe.Symbol

   Function-like api that lets you acess symbol of the definition with given arity and also look through all known symbols via `seq`.

### Abstract Value Members

1. #### abstract def AnyClass: Universe.ClassSymbol

   The class symbol of core class `scala.Any`.

2. #### abstract def AnyRefClass: Universe.TypeSymbol

   The type symbol of core class `scala.AnyRef`.

3. #### abstract val AnyRefTpe: Universe.Type

   The type of core type `AnyRef`.

   The type of core type `AnyRef`.

   Definition Classes
     StandardTypes

4. #### abstract val AnyTpe: Universe.Type

   The type of core type `Any`.

   The type of core type `Any`.

   Definition Classes
     StandardTypes

5. #### abstract def AnyValClass: Universe.ClassSymbol

   The class symbol of core class `scala.AnyVal`.

6. #### abstract val AnyValTpe: Universe.Type

   The type of core type `AnyVal`.

   The type of core type `AnyVal`.

   Definition Classes
     StandardTypes

7. #### abstract def ArrayClass: Universe.ClassSymbol

   The class symbol of class `scala.Array`.

8. #### abstract def ArrayModule: Universe.ModuleSymbol

   The module symbol of module `scala.Array`.

9. #### abstract def ArrayModule_overloadedApply: Universe.TermSymbol

   The method symbol of method `apply` in module `scala.Array`.

10. #### abstract def Array_apply: Universe.TermSymbol

    The method symbol of method `apply` in class `scala.Array`.

11. #### abstract def Array_clone: Universe.TermSymbol

    The method symbol of method `clone` in class `scala.Array`.

12. #### abstract def Array_length: Universe.TermSymbol

    The method symbol of method `length` in class `scala.Array`.

13. #### abstract def Array_update: Universe.TermSymbol

    The method symbol of method `update` in class `scala.Array`.

14. #### abstract def BooleanClass: Universe.ClassSymbol

    The class symbol of primitive class `scala.Boolean`.

15. #### abstract val BooleanTpe: Universe.Type

    The type of primitive type `Boolean`.

    The type of primitive type `Boolean`.

    Definition Classes
      StandardTypes

16. #### abstract def ByNameParamClass: Universe.ClassSymbol

    A dummy class symbol that is used to indicate by-name parameters.

    A dummy class symbol that is used to indicate by-name parameters.

        scala> class C { def m(x: => Int) = ??? }
        defined class C

        scala> import scala.reflect.runtime.universe._
        import scala.reflect.runtime.universe._

        scala> val m = typeOf[C].member(TermName("m")).asMethod
        m: reflect.runtime.universe.MethodSymbol = method m

        scala> m.params(0)(0).info
        res1: reflect.runtime.universe.Type = => scala.Int

        scala> showRaw(m.params(0)(0).info)
        res2: String = TypeRef(
            ThisType(scala),
            scala.<byname>, // <-- ByNameParamClass
            List(TypeRef(ThisType(scala), scala.Int, List())))

17. #### abstract def ByteClass: Universe.ClassSymbol

    The class symbol of primitive class `scala.Byte`.

18. #### abstract val ByteTpe: Universe.Type

    The type of primitive type `Byte`.

    The type of primitive type `Byte`.

    Definition Classes
      StandardTypes

19. #### abstract def CharClass: Universe.ClassSymbol

    The class symbol of primitive class `scala.Char`.

20. #### abstract val CharTpe: Universe.Type

    The type of primitive type `Char`.

    The type of primitive type `Char`.

    Definition Classes
      StandardTypes

21. #### abstract def ClassClass: Universe.ClassSymbol

    The class symbol of class `java.lang.Class`.

22. #### abstract def DoubleClass: Universe.ClassSymbol

    The class symbol of primitive class `scala.Double`.

23. #### abstract val DoubleTpe: Universe.Type

    The type of primitive type `Double`.

    The type of primitive type `Double`.

    Definition Classes
      StandardTypes

24. #### abstract def FloatClass: Universe.ClassSymbol

    The class symbol of primitive class `scala.Float`.

25. #### abstract val FloatTpe: Universe.Type

    The type of primitive type `Float`.

    The type of primitive type `Float`.

    Definition Classes
      StandardTypes

26. #### abstract def FunctionClass: VarArityClassApi

    Function-like object that maps arity to symbols for classes `scala.FunctionX`.

    Function-like object that maps arity to symbols for classes `scala.FunctionX`.

    - 0th element is `Function0`
    - 1st element is `Function1`
    - ...
    - 22nd element is `Function22`
    - 23nd element is `NoSymbol`
    - ...

27. #### abstract def IntClass: Universe.ClassSymbol

    The class symbol of primitive class `scala.Int`.

28. #### abstract val IntTpe: Universe.Type

    The type of primitive type `Int`.

    The type of primitive type `Int`.

    Definition Classes
      StandardTypes

29. #### abstract def JavaLangPackage: Universe.ModuleSymbol

    The module symbol of package `java.lang`.

30. #### abstract def JavaLangPackageClass: Universe.ClassSymbol

    The module class symbol of package `java.lang`.

31. #### abstract def JavaRepeatedParamClass: Universe.ClassSymbol

    A dummy class symbol that is used to indicate repeated parameters compiled by the Java compiler.

    A dummy class symbol that is used to indicate repeated parameters compiled by the Java compiler.

        class C {
          public void m(Object... x) {}
        }

        scala> import scala.reflect.runtime.universe._
        import scala.reflect.runtime.universe._

        scala> val m = typeOf[C].member(TermName("m")).asMethod
        m: reflect.runtime.universe.MethodSymbol = method m

        scala> m.params(0)(0).info
        res1: reflect.runtime.universe.Type = <repeated...>[Object]

        scala> showRaw(m.params(0)(0).info)
        res2: String = TypeRef(
            ThisType(scala),
            scala.<repeated...>, // <-- JavaRepeatedParamClass
            List(TypeRef(ThisType(java.lang), Object, List())))

32. #### abstract def ListClass: Universe.ClassSymbol

    The class symbol of class `scala.List`.

33. #### abstract def ListModule: Universe.ModuleSymbol

    The module symbol of module `scala.List`.

34. #### abstract def List_apply: Universe.TermSymbol

    The method symbol of method `apply` in class `scala.List`.

35. #### abstract def LongClass: Universe.ClassSymbol

    The class symbol of primitive class `scala.Long`.

36. #### abstract val LongTpe: Universe.Type

    The type of primitive type `Long`.

    The type of primitive type `Long`.

    Definition Classes
      StandardTypes

37. #### abstract def NilModule: Universe.ModuleSymbol

    The module symbol of module `scala.collection.immutable.Nil`.

38. #### abstract def NoneModule: Universe.ModuleSymbol

    The module symbol of module `scala.None`.

39. #### abstract def NothingClass: Universe.ClassSymbol

    The class symbol of core class `scala.Nothing`.

40. #### abstract val NothingTpe: Universe.Type

    The type of core type `Nothing`.

    The type of core type `Nothing`.

    Definition Classes
      StandardTypes

41. #### abstract def NullClass: Universe.ClassSymbol

    The class symbol of core class `scala.Null`.

42. #### abstract val NullTpe: Universe.Type

    The type of core type `Null`.

    The type of core type `Null`.

    Definition Classes
      StandardTypes

43. #### abstract def ObjectClass: Universe.ClassSymbol

    The class symbol of core class `java.lang.Object`.

44. #### abstract val ObjectTpe: Universe.Type

    The type of core type `Object`.

    The type of core type `Object`.

    Definition Classes
      StandardTypes

45. #### abstract def OptionClass: Universe.ClassSymbol

    The class symbol of class `scala.Option`.

46. #### abstract def PredefModule: Universe.ModuleSymbol

    The module symbol of module `scala.Predef`.

47. #### abstract def ProductClass: VarArityClassApi

    Function-like object that maps arity to symbols for classes `scala.ProductX`.

    Function-like object that maps arity to symbols for classes `scala.ProductX`.

    - 0th element is `Unit`
    - 1st element is `Product1`
    - ...
    - 22nd element is `Product22`
    - 23nd element is `NoSymbol`
    - ...

48. #### abstract def RepeatedParamClass: Universe.ClassSymbol

    A dummy class symbol that is used to indicate repeated parameters compiled by the Scala compiler.

    A dummy class symbol that is used to indicate repeated parameters compiled by the Scala compiler.

        scala> class C { def m(x: Int*) = ??? }
        defined class C

        scala> import scala.reflect.runtime.universe._
        import scala.reflect.runtime.universe._

        scala> val m = typeOf[C].member(TermName("m")).asMethod
        m: reflect.runtime.universe.MethodSymbol = method m

        scala> m.params(0)(0).info
        res1: reflect.runtime.universe.Type = scala.Int*

        scala> showRaw(m.params(0)(0).info)
        res2: String = TypeRef(
            ThisType(scala),
            scala.<repeated>, // <-- RepeatedParamClass
            List(TypeRef(ThisType(scala), scala.Int, List())))

49. #### abstract def ScalaNumericValueClasses: List[Universe.ClassSymbol]

    Contains Scala numeric value classes:

    Contains Scala numeric value classes:

    - Byte
    - Short
    - Int
    - Long
    - Float
    - Double
    - Char

50. #### abstract def ScalaPackage: Universe.ModuleSymbol

    The module symbol of package `scala`.

51. #### abstract def ScalaPackageClass: Universe.ClassSymbol

    The module class symbol of package `scala`.

52. #### abstract def ScalaPrimitiveValueClasses: List[Universe.ClassSymbol]

    Contains Scala primitive value classes:

    Contains Scala primitive value classes:

    - Byte
    - Short
    - Int
    - Long
    - Float
    - Double
    - Char
    - Boolean
    - Unit

53. #### abstract def ShortClass: Universe.ClassSymbol

    The class symbol of primitive class `scala.Short`.

54. #### abstract val ShortTpe: Universe.Type

    The type of primitive type `Short`.

    The type of primitive type `Short`.

    Definition Classes
      StandardTypes

55. #### abstract def SomeModule: Universe.ModuleSymbol

    The module symbol of module `scala.Some`.

56. #### abstract def StringClass: Universe.ClassSymbol

    The class symbol of class `scala.String`.

57. #### abstract def TupleClass: VarArityClassApi

    Function-like object that maps arity to symbols for classes `scala.TupleX`.

    Function-like object that maps arity to symbols for classes `scala.TupleX`.

    - 0th element is `NoSymbol`
    - 1st element is `Tuple1`
    - ...
    - 22nd element is `Tuple22`
    - 23nd element is `NoSymbol`
    - ...

58. #### abstract def UnitClass: Universe.ClassSymbol

    The class symbol of primitive class `scala.Unit`.

59. #### abstract val UnitTpe: Universe.Type

    The type of primitive type `Unit`.

    The type of primitive type `Unit`.

    Definition Classes
      StandardTypes

### Concrete 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 information
     This member is added by an implicit conversion from Universe.DefinitionsApi to any2stringadd[Universe.DefinitionsApi] performed by method any2stringadd in scala.Predef.
   Definition Classes
     any2stringadd

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

   Implicit information
     This member is added by an implicit conversion from Universe.DefinitionsApi to ArrowAssoc[Universe.DefinitionsApi] 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. #### 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`.

7. #### 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

8. #### def ensuring(cond: (Universe.DefinitionsApi) ⇒ Boolean, msg: ⇒ Any): Universe.DefinitionsApi

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

9. #### def ensuring(cond: (Universe.DefinitionsApi) ⇒ Boolean): Universe.DefinitionsApi

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

10. #### def ensuring(cond: Boolean, msg: ⇒ Any): Universe.DefinitionsApi

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

11. #### def ensuring(cond: Boolean): Universe.DefinitionsApi

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

12. #### 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

13. #### 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

14. #### 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

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

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

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

    A representation that corresponds to the dynamic class of the receiver object.

    A representation that corresponds to the dynamic class of the receiver object.

    The nature of the representation is platform dependent.

    returns

      a representation that corresponds to the dynamic class of the receiver object.

    Definition Classes
      AnyRef → Any
    Note

      not specified by SLS as a member of AnyRef

17. #### 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

18. #### 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

19. #### 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

20. #### 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

21. #### 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

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

    Definition Classes
      AnyRef

23. #### 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

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

    Definition Classes
      AnyRef
    Annotations
      @throws( ... )

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

    Definition Classes
      AnyRef
    Annotations
      @throws( ... )

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

    Definition Classes
      AnyRef
    Annotations
      @throws( ... )

27. #### def →[B](y: B): (Universe.DefinitionsApi, B)

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

### Inherited from Universe.StandardTypes

### Inherited from AnyRef

### Inherited from Any

### Inherited by implicit conversion any2stringadd from Universe.DefinitionsApi to any2stringadd[Universe.DefinitionsApi]

### Inherited by implicit conversion StringFormat from Universe.DefinitionsApi to StringFormat[Universe.DefinitionsApi]

### Inherited by implicit conversion Ensuring from Universe.DefinitionsApi to Ensuring[Universe.DefinitionsApi]

### Inherited by implicit conversion ArrowAssoc from Universe.DefinitionsApi to ArrowAssoc[Universe.DefinitionsApi]

### Ungrouped