Packages

case class ExtractorTreeMaker(extractor: Global.Tree, extraCond: Option[Global.Tree], nextBinder: Global.Symbol)(subPatBinders: List[Global.Symbol], subPatRefs: List[Global.Tree], potentiallyMutableBinders: Set[Global.Symbol], extractorReturnsBoolean: Boolean, checkedLength: Option[Int], prevBinder: Global.Symbol, ignoredSubPatBinders: Set[Global.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 (scala/bug#5739).

Source
MatchTreeMaking.scala
Linear Supertypes
java.io.Serializable, Product, Equals, PreserveSubPatBinders, FunTreeMaker, TreeMaker, AnyRef, Any
Type Hierarchy
Ordering
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  2. By Inheritance
Inherited
  1. ExtractorTreeMaker
  2. Serializable
  3. Product
  4. Equals
  5. PreserveSubPatBinders
  6. FunTreeMaker
  7. TreeMaker
  8. AnyRef
  9. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
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Visibility
  1. Public
  2. Protected

Instance Constructors

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

Value Members

  1. def bindSubPats(in: Global.Tree): Global.Tree
    Definition Classes
    PreserveSubPatBinders
  2. def chainBefore(next: Global.Tree)(casegen: TreeMakers.Casegen): Global.Tree
    Definition Classes
    ExtractorTreeMaker → TreeMaker
  3. val checkedLength: Option[Int]
  4. def emitVars: Boolean
    Definition Classes
    PreserveSubPatBinders
  5. val extraCond: Option[Global.Tree]
  6. def extraStoredBinders: Set[Global.Symbol]
    Definition Classes
    ExtractorTreeMaker → PreserveSubPatBinders
  7. val extractor: Global.Tree
  8. val ignoredSubPatBinders: Set[Global.Symbol]
    Definition Classes
    ExtractorTreeMaker → PreserveSubPatBinders
  9. val nextBinder: Global.Symbol
    Definition Classes
    ExtractorTreeMaker → FunTreeMaker
  10. def pos: Global.Position
    Definition Classes
    FunTreeMaker → TreeMaker
  11. val potentiallyMutableBinders: Set[Global.Symbol]
  12. val prevBinder: Global.Symbol
  13. def productElementNames: Iterator[String]
    Definition Classes
    Product
  14. val subPatBinders: List[Global.Symbol]
    Definition Classes
    ExtractorTreeMaker → PreserveSubPatBinders
  15. val subPatRefs: List[Global.Tree]
    Definition Classes
    ExtractorTreeMaker → PreserveSubPatBinders
  16. def subPatternsAsSubstitution: TreeMakers.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 scala/bug#5158, scala/bug#5739 and scala/bug#6070.)

    Definition Classes
    PreserveSubPatBinders → TreeMaker
  17. def substitution: TreeMakers.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
  18. def toString(): String
    Definition Classes
    ExtractorTreeMaker → AnyRef → Any