Trait/Object

com.thoughtworks.feature

SelfType

Related Docs: object SelfType | package feature

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trait SelfType[A] extends AnyRef

A type class that extracts the self-type of A.

Source
SelfType.scala
Examples:

  1. Given a compound type,

    trait MySelfType1
trait MyTrait1 { this: MySelfType1 => }
trait MyTrait2
trait MySelfType3
trait MyTrait3 { this: MySelfType3 => }
type MyCompoundType = MyTrait1 with MyTrait2 with MyTrait3 {
  type MyRefinement = Int
}

    then the self type should be a compound type of each mix-in part,

    val selfType = SelfType[MyCompoundType]
"implicitly[selfType.Out =:= (MySelfType1 with MySelfType3 with MyTrait1 with MyTrait2 with MyTrait3)]" should compile

    and the self type should not contain the refinement statements

    "implicitly[selfType.Out <:< { type MyRefinement = Int }]" shouldNot typeCheck
    2. ,

  2. Given a trait with an explicit self-type declaration,

    trait MySelfType
trait MyTrait { this: MySelfType => }

    then the self type should be itself with the type of this.

    val selfType = SelfType[MyTrait]
"implicitly[selfType.Out =:= (MySelfType with MyTrait)]" should compile
    3. ,

  3. Given a trait without an explicit self-type declaration

    trait MyTrait

    Then the self type should be itself

    val selfType = SelfType[MyTrait]
"implicitly[selfType.Out =:= MyTrait]" should compile
Linear Supertypes
AnyRef, Any
Type Hierarchy
Ordering
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Inherited
  1. SelfType
  2. AnyRef
  3. 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 type Out

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Value Members

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

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    Definition Classes
    AnyRef → Any

  2. final def ##(): Int

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    Definition Classes
    AnyRef → Any

  3. def +(other: String): String

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

  4. def ->[B](y: B): (SelfType[A], B)

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

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

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    Definition Classes
    AnyRef → Any

  6. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any

  7. def clone(): AnyRef

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

  8. def ensuring(cond: (SelfType[A]) ⇒ Boolean, msg: ⇒ Any): SelfType[A]

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

  9. def ensuring(cond: (SelfType[A]) ⇒ Boolean): SelfType[A]

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

  10. def ensuring(cond: Boolean, msg: ⇒ Any): SelfType[A]

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

  11. def ensuring(cond: Boolean): SelfType[A]

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

  12. final def eq(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef

  13. def equals(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any

  14. def finalize(): Unit

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

  15. def formatted(fmtstr: String): String

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

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

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    Definition Classes
    AnyRef → Any

  17. def hashCode(): Int

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    Definition Classes
    AnyRef → Any

  18. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any

  19. final def ne(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef

  20. final def notify(): Unit

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    Definition Classes
    AnyRef

  21. final def notifyAll(): Unit

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    Definition Classes
    AnyRef

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

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    Definition Classes
    AnyRef

  23. def toString(): String

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    Definition Classes
    AnyRef → Any

  24. final def wait(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  27. def →[B](y: B): (SelfType[A], B)

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

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from SelfType[A] to any2stringadd[SelfType[A]]

Inherited by implicit conversion StringFormat from SelfType[A] to StringFormat[SelfType[A]]

Inherited by implicit conversion Ensuring from SelfType[A] to Ensuring[SelfType[A]]

Inherited by implicit conversion ArrowAssoc from SelfType[A] to ArrowAssoc[SelfType[A]]

Ungrouped