scala.tools.nsc.typechecker.PatternMatching.TreeMakers

ExtractorTreeMaker

case class ExtractorTreeMaker(extractor: Global.Tree, extraCond: Option[Global.Tree], nextBinder: Global.Symbol)(subPatBinders: List[Global.Symbol], subPatRefs: List[Global.Tree], extractorReturnsBoolean: Boolean, checkedLength: Option[Int], prevBinder: Global.Symbol, ignoredSubPatBinders: Set[Global.Symbol]) extends (TreeMakers.this)#FunTreeMaker with (TreeMakers.this)#PreserveSubPatBinders with Product with Serializable

Make a TreeMaker that will result in an extractor call specified by extractor the next TreeMaker (here, we don't know which it'll be) is chained after this one by flatMap'ing a function with binder nextBinder over our extractor's result the function's body is determined by the next TreeMaker (furthermore, the interpretation of flatMap depends on the codegen instance we're using).

The values for the subpatterns, as computed by the extractor call in extractor, are stored in local variables that re-use the symbols in subPatBinders. This makes extractor patterns more debuggable (SI-5739).

Source
PatternMatching.scala
Linear Supertypes
Serializable, java.io.Serializable, Product, Equals, (TreeMakers.this)#PreserveSubPatBinders, (TreeMakers.this)#FunTreeMaker, (TreeMakers.this)#TreeMaker, AnyRef, Any
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Inherited
  1. ExtractorTreeMaker
  2. Serializable
  3. Serializable
  4. Product
  5. Equals
  6. PreserveSubPatBinders
  7. FunTreeMaker
  8. TreeMaker
  9. AnyRef
  10. Any
Implicitly
  1. by any2stringadd
  2. by any2stringfmt
  3. by any2ArrowAssoc
  4. by any2Ensuring
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Visibility
  1. Public
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Instance Constructors

  1. new ExtractorTreeMaker(extractor: Global.Tree, extraCond: Option[Global.Tree], nextBinder: Global.Symbol)(subPatBinders: List[Global.Symbol], subPatRefs: List[Global.Tree], extractorReturnsBoolean: Boolean, checkedLength: Option[Int], prevBinder: Global.Symbol, ignoredSubPatBinders: Set[Global.Symbol])

Value Members

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

    Definition Classes
    AnyRef

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

    Definition Classes
    Any

  3. final def ##(): Int

    Definition Classes
    AnyRef → Any

  4. def +(other: String): String

    Implicit information
    This member is added by an implicit conversion from (TreeMakers.this)#ExtractorTreeMaker to StringAdd performed by method any2stringadd in scala.Predef.
    Definition Classes
    StringAdd

  5. def ->[B](y: B): ((TreeMakers.this)#ExtractorTreeMaker, B)

    Implicit information
    This member is added by an implicit conversion from (TreeMakers.this)#ExtractorTreeMaker to ArrowAssoc[(TreeMakers.this)#ExtractorTreeMaker] performed by method any2ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()

  6. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

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

    Definition Classes
    Any

  8. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  9. def bindSubPats(in: Global.Tree): Global.Tree

    Definition Classes
    PreserveSubPatBinders

  10. def chainBefore(next: Global.Tree)(casegen: (TreeMakers.this)#Casegen): Global.Tree

    Definition Classes
    ExtractorTreeMaker → TreeMaker

  11. val checkedLength: Option[Int]

  12. def clone(): AnyRef

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

  13. def emitVars: Boolean

    Definition Classes
    PreserveSubPatBinders

  14. def ensuring(cond: ((TreeMakers.this)#ExtractorTreeMaker) ⇒ Boolean, msg: ⇒ Any): (TreeMakers.this)#ExtractorTreeMaker

    Implicit information
    This member is added by an implicit conversion from (TreeMakers.this)#ExtractorTreeMaker to Ensuring[(TreeMakers.this)#ExtractorTreeMaker] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  15. def ensuring(cond: ((TreeMakers.this)#ExtractorTreeMaker) ⇒ Boolean): (TreeMakers.this)#ExtractorTreeMaker

    Implicit information
    This member is added by an implicit conversion from (TreeMakers.this)#ExtractorTreeMaker to Ensuring[(TreeMakers.this)#ExtractorTreeMaker] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  16. def ensuring(cond: Boolean, msg: ⇒ Any): (TreeMakers.this)#ExtractorTreeMaker

    Implicit information
    This member is added by an implicit conversion from (TreeMakers.this)#ExtractorTreeMaker to Ensuring[(TreeMakers.this)#ExtractorTreeMaker] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  17. def ensuring(cond: Boolean): (TreeMakers.this)#ExtractorTreeMaker

    Implicit information
    This member is added by an implicit conversion from (TreeMakers.this)#ExtractorTreeMaker to Ensuring[(TreeMakers.this)#ExtractorTreeMaker] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring

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

    Definition Classes
    AnyRef

  19. val extraCond: Option[Global.Tree]

  20. def extraStoredBinders: Set[Global.Symbol]

    Definition Classes
    ExtractorTreeMaker → PreserveSubPatBinders

  21. val extractor: Global.Tree

  22. def finalize(): Unit

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

  23. def formatted(fmtstr: String): String

    Implicit information
    This member is added by an implicit conversion from (TreeMakers.this)#ExtractorTreeMaker to StringFormat performed by method any2stringfmt in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()

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

    Definition Classes
    AnyRef → Any

  25. val ignoredSubPatBinders: Set[Global.Symbol]

    Definition Classes
    ExtractorTreeMaker → PreserveSubPatBinders

  26. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

  27. lazy val localSubstitution: (TreeMakers.this)#Substitution

    Attributes
    protected
    Definition Classes
    PreserveSubPatBinders → TreeMaker

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

    Definition Classes
    AnyRef

  29. val nextBinder: Global.Symbol

    Definition Classes
    ExtractorTreeMaker → FunTreeMaker

  30. final def notify(): Unit

    Definition Classes
    AnyRef

  31. final def notifyAll(): Unit

    Definition Classes
    AnyRef

  32. def pos: Global.Position

    Definition Classes
    FunTreeMaker → TreeMaker

  33. val prevBinder: Global.Symbol

  34. lazy val storedBinders: Set[Global.Symbol]

    Definition Classes
    PreserveSubPatBinders

  35. val subPatBinders: List[Global.Symbol]

    Definition Classes
    ExtractorTreeMaker → PreserveSubPatBinders

  36. val subPatRefs: List[Global.Tree]

    Definition Classes
    ExtractorTreeMaker → PreserveSubPatBinders

  37. def subPatternsAsSubstitution: (TreeMakers.this)#Substitution

    The substitution that specifies the trees that compute the values of the subpattern binders.

    The substitution that specifies the trees that compute the values of the subpattern binders.

    We pretend to replace the subpattern binders by subpattern refs (Even though we don't do so anymore -- see SI-5158, SI-5739 and SI-6070.)

    Definition Classes
    PreserveSubPatBinders → TreeMaker

  38. def substitution: (TreeMakers.this)#Substitution

    captures the scope and the value of the bindings in patterns important *when* the substitution happens (can't accumulate and do at once after the full matcher has been constructed)

    captures the scope and the value of the bindings in patterns important *when* the substitution happens (can't accumulate and do at once after the full matcher has been constructed)

    Definition Classes
    TreeMaker

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

    Definition Classes
    AnyRef

  40. def toString(): String

    Definition Classes
    ExtractorTreeMaker → AnyRef → Any

  41. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws()

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

    Definition Classes
    AnyRef
    Annotations
    @throws()

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

    Definition Classes
    AnyRef
    Annotations
    @throws()

  44. def →[B](y: B): ((TreeMakers.this)#ExtractorTreeMaker, B)

    Implicit information
    This member is added by an implicit conversion from (TreeMakers.this)#ExtractorTreeMaker to ArrowAssoc[(TreeMakers.this)#ExtractorTreeMaker] performed by method any2ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Shadowed Implict Value Members

  1. val self: Any

    Implicit information
    This member is added by an implicit conversion from (TreeMakers.this)#ExtractorTreeMaker to StringAdd performed by method any2stringadd in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (extractorTreeMaker: StringAdd).self
    Definition Classes
    StringAdd

  2. val self: Any

    Implicit information
    This member is added by an implicit conversion from (TreeMakers.this)#ExtractorTreeMaker to StringFormat performed by method any2stringfmt in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (extractorTreeMaker: StringFormat).self
    Definition Classes
    StringFormat

Deprecated Value Members

  1. def x: (TreeMakers.this)#ExtractorTreeMaker

    Implicit information
    This member is added by an implicit conversion from (TreeMakers.this)#ExtractorTreeMaker to ArrowAssoc[(TreeMakers.this)#ExtractorTreeMaker] performed by method any2ArrowAssoc in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (extractorTreeMaker: ArrowAssoc[(TreeMakers.this)#ExtractorTreeMaker]).x
    Definition Classes
    ArrowAssoc
    Annotations
    @deprecated
    Deprecated

    (Since version 2.10.0) Use leftOfArrow instead

  2. def x: (TreeMakers.this)#ExtractorTreeMaker

    Implicit information
    This member is added by an implicit conversion from (TreeMakers.this)#ExtractorTreeMaker to Ensuring[(TreeMakers.this)#ExtractorTreeMaker] performed by method any2Ensuring in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (extractorTreeMaker: Ensuring[(TreeMakers.this)#ExtractorTreeMaker]).x
    Definition Classes
    Ensuring
    Annotations
    @deprecated
    Deprecated

    (Since version 2.10.0) Use resultOfEnsuring instead

Inherited from Serializable

Inherited from java.io.Serializable

Inherited from Product

Inherited from Equals

Inherited from (TreeMakers.this)#PreserveSubPatBinders

Inherited from (TreeMakers.this)#FunTreeMaker

Inherited from (TreeMakers.this)#TreeMaker

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from (TreeMakers.this)#ExtractorTreeMaker to StringAdd

Inherited by implicit conversion any2stringfmt from (TreeMakers.this)#ExtractorTreeMaker to StringFormat

Inherited by implicit conversion any2ArrowAssoc from (TreeMakers.this)#ExtractorTreeMaker to ArrowAssoc[(TreeMakers.this)#ExtractorTreeMaker]

Inherited by implicit conversion any2Ensuring from (TreeMakers.this)#ExtractorTreeMaker to Ensuring[(TreeMakers.this)#ExtractorTreeMaker]

Ungrouped