dotty.tools.dotc.transform.PatternMatcher.Translator.TreeMakers

ExtractorTreeMaker

Related Doc: package TreeMakers

case class ExtractorTreeMaker(extractor: ast.tpd.Tree, extraCond: Option[ast.tpd.Tree], nextBinder: Symbol)(subPatBinders: List[Symbol], subPatRefs: List[ast.tpd.Tree], extractorReturnsBoolean: Boolean, checkedLength: Option[Int], prevBinder: Symbol, ignoredSubPatBinders: Set[Symbol]) extends FunTreeMaker with 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).

Linear Supertypes
Serializable, Serializable, Product, Equals, PreserveSubPatBinders, FunTreeMaker, 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
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Instance Constructors

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

Value Members

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

    Definition Classes
    AnyRef → Any

  2. final def ##(): Int

    Definition Classes
    AnyRef → Any

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

    Definition Classes
    AnyRef → Any

  4. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  5. def bindSubPats(in: ast.tpd.Tree): ast.tpd.Tree

    Definition Classes
    PreserveSubPatBinders

  6. def chainBefore(next: ast.tpd.Tree)(casegen: TreeMakers.Casegen): ast.tpd.Tree

    Definition Classes
    ExtractorTreeMaker → TreeMaker

  7. val checkedLength: Option[Int]

  8. def clone(): AnyRef

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

  9. def emitVars: Boolean

    Definition Classes
    PreserveSubPatBinders

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

    Definition Classes
    AnyRef

  11. val extraCond: Option[ast.tpd.Tree]

  12. def extraStoredBinders: Set[Symbol]

    Definition Classes
    ExtractorTreeMaker → PreserveSubPatBinders

  13. val extractor: ast.tpd.Tree

  14. def finalize(): Unit

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

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

    Definition Classes
    AnyRef → Any

  16. val ignoredSubPatBinders: Set[Symbol]

    Definition Classes
    ExtractorTreeMaker → PreserveSubPatBinders

  17. lazy val introducedRebindings: Rebindings

    Attributes
    protected
    Definition Classes
    PreserveSubPatBinders → TreeMaker

  18. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

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

    Definition Classes
    AnyRef

  20. val nextBinder: Symbol

    Definition Classes
    ExtractorTreeMaker → FunTreeMaker

  21. final def notify(): Unit

    Definition Classes
    AnyRef

  22. final def notifyAll(): Unit

    Definition Classes
    AnyRef

  23. def pos: Position

    Definition Classes
    FunTreeMaker → TreeMaker

  24. val prevBinder: Symbol

  25. def rebindings: Rebindings

    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

  26. def stored: Traversable[(Symbol, ast.tpd.Tree)]

    Definition Classes
    PreserveSubPatBinders

  27. lazy val storedBinders: Set[Symbol]

    Definition Classes
    PreserveSubPatBinders

  28. lazy val storedSubsted: (Traversable[(Symbol, ast.tpd.Tree)], Traversable[(Symbol, ast.tpd.Tree)])

    Definition Classes
    PreserveSubPatBinders

  29. val subPatBinders: List[Symbol]

    Definition Classes
    ExtractorTreeMaker → PreserveSubPatBinders

  30. val subPatRefs: List[ast.tpd.Tree]

    Definition Classes
    ExtractorTreeMaker → PreserveSubPatBinders

  31. def subPatternsAsRebindings: Rebindings

    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

  32. def substed: Traversable[(Symbol, ast.tpd.Tree)]

    Definition Classes
    PreserveSubPatBinders

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

    Definition Classes
    AnyRef

  34. def toString(): String

    Definition Classes
    ExtractorTreeMaker → AnyRef → Any

  35. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from Serializable

Inherited from Serializable

Inherited from Product

Inherited from Equals

Inherited from PreserveSubPatBinders

Inherited from FunTreeMaker

Inherited from TreeMaker

Inherited from AnyRef

Inherited from Any

Ungrouped