trait Implicits extends AnyRef

This trait provides methods to find various kinds of implicits.

Self Type
Analyzer
Source
Implicits.scala
Version

1.0

Linear Supertypes
AnyRef, Any
Known Subclasses
erasure, treeChecker, ScaladocAnalyzer, InteractiveAnalyzer, Erasure, Duplicator, SpecializationDuplicator, Analyzer, Duplicators, TreeCheckers
Type Hierarchy
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Inherited
  1. Implicits
  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. class ImplicitAnnotationMsg extends AnyRef
  2. class ImplicitInfo extends AnyRef

    A class that records an available implicit

  3. class ImplicitSearch extends Analyzer.Typer with Analyzer.ImplicitsContextErrors

    A class that sets up an implicit search.

    A class that sets up an implicit search. For more info, see comments for inferImplicit.

  4. class Message extends AnyRef
  5. case class OpenImplicit(info: Analyzer.ImplicitInfo, pt: Global.Type, tree: Global.Tree) extends Product with Serializable

    A class which is used to track pending implicits to prevent infinite implicit searches.

  6. class SearchResult extends AnyRef

    The result of an implicit search

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 Implicits to any2stringadd[Implicits] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (Implicits, B)
    Implicit
    This member is added by an implicit conversion from Implicits to ArrowAssoc[Implicits] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  5. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  6. lazy val AmbiguousSearchFailure: Analyzer.SearchResult
  7. lazy val DivergentSearchFailure: Analyzer.SearchResult
  8. val NoImplicitInfo: Analyzer.ImplicitInfo

    A sentinel indicating no implicit was found

  9. lazy val SearchFailure: Analyzer.SearchResult
  10. def allViewsFrom(tp: Global.Type, context: Analyzer.Context, tpars: List[Global.Symbol]): List[(Analyzer.SearchResult, List[Global.TypeConstraint])]

    Find all views from type tp (in which tpars are free)

    Find all views from type tp (in which tpars are free)

    Note that the trees in the search results in the returned list share the same type variables. Ignore their constr field! The list of type constraints returned along with each tree specifies the constraints that must be met by the corresponding type parameter in tpars (for the returned implicit view to be valid).

    tp

    from-type for the implicit conversion

    context

    search implicits here

    tpars

    symbols that should be considered free type variables (implicit search should not try to solve them, just track their constraints)

  11. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  12. def clone(): AnyRef
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )
  13. def ensuring(cond: (Implicits) ⇒ Boolean, msg: ⇒ Any): Implicits
    Implicit
    This member is added by an implicit conversion from Implicits to Ensuring[Implicits] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  14. def ensuring(cond: (Implicits) ⇒ Boolean): Implicits
    Implicit
    This member is added by an implicit conversion from Implicits to Ensuring[Implicits] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  15. def ensuring(cond: Boolean, msg: ⇒ Any): Implicits
    Implicit
    This member is added by an implicit conversion from Implicits to Ensuring[Implicits] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  16. def ensuring(cond: Boolean): Implicits
    Implicit
    This member is added by an implicit conversion from Implicits to Ensuring[Implicits] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  17. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  18. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  19. def finalize(): Unit
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  20. def formatted(fmtstr: String): String
    Implicit
    This member is added by an implicit conversion from Implicits to StringFormat[Implicits] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()
  21. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  22. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  23. def inferImplicit(tree: Global.Tree, pt: Global.Type, isView: Boolean, context: Analyzer.Context, silent: Boolean, withMacrosDisabled: Boolean, pos: Global.Position, onError: (Global.Position, String) ⇒ Unit): Global.Tree

    A friendly wrapper over inferImplicit to be used in macro contexts and toolboxes.

  24. def inferImplicit(tree: Global.Tree, pt: Global.Type, reportAmbiguous: Boolean, isView: Boolean, context: Analyzer.Context, saveAmbiguousDivergent: Boolean, pos: Global.Position): Analyzer.SearchResult

    Search for an implicit value.

    Search for an implicit value. Consider using one of the convenience methods above. This one has many boolean levers.

    See the comment on result at the end of class ImplicitSearch for more info how the search is conducted.

    tree

    The tree for which the implicit needs to be inserted. (the inference might instantiate some of the undetermined type parameters of that tree.

    pt

    The expected type of the implicit.

    reportAmbiguous

    Should ambiguous implicit errors be reported? False iff we search for a view to find out whether one type is coercible to another.

    isView

    We are looking for a view

    context

    The current context

    saveAmbiguousDivergent

    False if any divergent/ambiguous errors should be ignored after implicits search, true if they should be reported (used in further typechecking).

    pos

    Position that should be used for tracing and error reporting (useful when we infer synthetic stuff and pass EmptyTree in the tree argument) If it's set to NoPosition, then position-based services will use tree.pos

    returns

    A search result

  25. def inferImplicitByType(pt: Global.Type, context: Analyzer.Context, pos: Global.Position = NoPosition): Analyzer.SearchResult
  26. def inferImplicitByTypeSilent(pt: Global.Type, context: Analyzer.Context, pos: Global.Position = NoPosition): Analyzer.SearchResult
  27. def inferImplicitFor(pt: Global.Type, tree: Global.Tree, context: Analyzer.Context, reportAmbiguous: Boolean = true): Analyzer.SearchResult
  28. def inferImplicitView(from: Global.Type, to: Global.Type, tree: Global.Tree, context: Analyzer.Context, reportAmbiguous: Boolean, saveAmbiguousDivergent: Boolean): Analyzer.SearchResult
  29. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  30. def memberWildcardType(name: Global.Name, tp: Global.Type): Global.Type

    A constructor for types ?{ def/type name: tp }, used in infer view to member searches.

  31. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  32. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  33. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  34. def resetImplicits(): Unit
  35. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  36. def toString(): String
    Definition Classes
    AnyRef → Any
  37. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  38. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  39. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )
  40. def →[B](y: B): (Implicits, B)
    Implicit
    This member is added by an implicit conversion from Implicits to ArrowAssoc[Implicits] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
  41. object Function1

    An extractor for unary function types arg => res

  42. object HasMember

    An extractor for types of the form ? { name: ? }

  43. object HasMethodMatching

    An extractor for types of the form ? { name: (? >: argtpe <: Any*)restp }

  44. object ImplicitAmbiguousMsg extends Analyzer.ImplicitAnnotationMsg
  45. object ImplicitNotFoundMsg extends Analyzer.ImplicitAnnotationMsg
  46. object OpenImplicit extends Serializable

Deprecated Value Members

  1. def inferImplicit(tree: Global.Tree, pt: Global.Type, reportAmbiguous: Boolean, isView: Boolean, context: Analyzer.Context, saveAmbiguousDivergent: Boolean): Analyzer.SearchResult
    Annotations
    @deprecated
    Deprecated

    (Since version 2.12.0-M4) Unused in scalac

  2. def inferImplicit(tree: Global.Tree, pt: Global.Type, reportAmbiguous: Boolean, isView: Boolean, context: Analyzer.Context): Analyzer.SearchResult
    Annotations
    @deprecated
    Deprecated

    (Since version 2.12.0-M4) Unused in scalac

Inherited from AnyRef

Inherited from Any

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

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

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

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

Ungrouped