Packages

object patmat extends SubComponent with PatternMatching

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Inherited
  1. patmat
  2. PatternMatching
  3. ScalacPatternExpanders
  4. MatchWarnings
  5. MatchOptimization
  6. MatchAnalysis
  7. MatchApproximation
  8. Solving
  9. ScalaLogic
  10. TreeAndTypeAnalysis
  11. Logic
  12. MatchCps
  13. MatchTreeMaking
  14. MatchCodeGen
  15. MatchTranslation
  16. Interface
  17. TreeDSL
  18. Debugging
  19. TypingTransformers
  20. Transform
  21. SubComponent
  22. AnyRef
  23. Any
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Type Members

  1. type PatternAligned = transform.patmat.ScalacPatternExpanders.ScalacPatternExpander.Aligned
    Definition Classes
    ScalacPatternExpanders
  2. abstract class StdPhase extends GlobalPhase

    A standard phase template

    A standard phase template

    Definition Classes
    SubComponent
  3. class Phase extends StdPhase

    The phase defined by this transform

    The phase defined by this transform

    Definition Classes
    Transform
  4. abstract class TypingTransformer extends Global.Transformer
    Definition Classes
    TypingTransformers
  5. trait MatchMonadInterface extends AnyRef

    Interface with user-defined match monad? if there's a __match in scope, we use this as the match strategy, assuming it conforms to MatchStrategy as defined below:

    Interface with user-defined match monad? if there's a __match in scope, we use this as the match strategy, assuming it conforms to MatchStrategy as defined below:

    type Matcher[P[_], M[+_], A] = {
  def flatMap[B](f: P[A] => M[B]): M[B]
  def orElse[B >: A](alternative: => M[B]): M[B]
}

abstract class MatchStrategy[P[_], M[+_]] {
  // runs the matcher on the given input
  def runOrElse[T, U](in: P[T])(matcher: P[T] => M[U]): P[U]

  def zero: M[Nothing]
  def one[T](x: P[T]): M[T]
  def guard[T](cond: P[Boolean], then: => P[T]): M[T]
}

    P and M are derived from one's signature (def one[T](x: P[T]): M[T])

    if no __match is found, we assume the following implementation (and generate optimized code accordingly)

    object __match extends MatchStrategy[({type Id[x] = x})#Id, Option] {
  def zero = None
  def one[T](x: T) = Some(x)
  // NOTE: guard's return type must be of the shape M[T], where M is the monad in which the pattern match should be interpreted
  def guard[T](cond: Boolean, then: => T): Option[T] = if(cond) Some(then) else None
  def runOrElse[T, U](x: T)(f: T => Option[U]): U = f(x) getOrElse (throw new MatchError(x))
}
    Definition Classes
    Interface
  6. trait TypedSubstitution extends MatchMonadInterface
    Definition Classes
    Interface
  7. trait PropositionalLogic extends AnyRef
    Definition Classes
    Logic
  8. trait MatchAnalyzer extends MatchApproximator
    Definition Classes
    MatchAnalysis
  9. trait MatchApproximator extends TreeMakers with TreesAndTypesDomain

    Represent a match as a formula in propositional logic that encodes whether the match matches (abstractly: we only consider types)

    Represent a match as a formula in propositional logic that encodes whether the match matches (abstractly: we only consider types)

    Definition Classes
    MatchApproximation
  10. trait CodegenCore extends MatchMonadInterface
    Definition Classes
    MatchCodeGen
  11. trait OptimizedCodegen extends CodegenCore with TypedSubstitution with MatchMonadInterface
    Definition Classes
    MatchCodeGen
  12. trait PureCodegen extends CodegenCore with PureMatchMonadInterface
    Definition Classes
    MatchCodeGen
  13. trait PureMatchMonadInterface extends MatchMonadInterface
    Definition Classes
    MatchCodeGen
  14. trait CommonSubconditionElimination extends OptimizedCodegen with MatchApproximator
    Definition Classes
    MatchOptimization
  15. trait MatchOptimizer extends OptimizedCodegen with SwitchEmission with CommonSubconditionElimination
    Definition Classes
    MatchOptimization
  16. trait SwitchEmission extends TreeMakers with MatchMonadInterface
    Definition Classes
    MatchOptimization
  17. trait MatchTranslator extends PatternMatching.TreeMakers with PatternMatching.TreeMakerWarnings
    Definition Classes
    MatchTranslation
  18. final case class Suppression (suppressExhaustive: Boolean, suppressUnreachable: Boolean) extends Product with Serializable
    Definition Classes
    MatchTreeMaking
  19. trait TreeMakers extends TypedSubstitution with CodegenCore
    Definition Classes
    MatchTreeMaking
  20. trait TreeMakerWarnings extends AnyRef
    Definition Classes
    MatchWarnings
  21. class MatchTransformer extends TypingTransformer
    Definition Classes
    PatternMatching
  22. class OptimizingMatchTranslator extends MatchTranslator with MatchOptimizer with MatchAnalyzer with Solver
    Definition Classes
    PatternMatching
  23. class PureMatchTranslator extends MatchTranslator with PureCodegen
    Definition Classes
    PatternMatching
  24. trait TreesAndTypesDomain extends PropositionalLogic with CheckableTreeAndTypeAnalysis
    Definition Classes
    ScalaLogic
  25. implicit class AlignedOps extends AnyRef
    Definition Classes
    ScalacPatternExpanders
  26. trait ScalacPatternExpander extends PatternExpander[Global.Tree, Global.Type]
    Definition Classes
    ScalacPatternExpanders
  27. trait CNF extends PropositionalLogic
    Definition Classes
    Solving
  28. trait Solver extends CNF
    Definition Classes
    Solving
  29. trait CheckableTreeAndTypeAnalysis extends AnyRef
    Definition Classes
    TreeAndTypeAnalysis

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 afterOwnPhase[T](op: ⇒ T): T
    Definition Classes
    SubComponent
    Annotations
    @inline()
  5. def alignAcrossRows(xss: List[List[Any]], sep: String, lineSep: String = "\n"): String
    Definition Classes
    Logic
  6. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  7. final def beforeOwnPhase[T](op: ⇒ T): T
    Definition Classes
    SubComponent
    Annotations
    @inline()
  8. def binderTypeImpliedByPattern(pat: Global.Tree, pt: Global.Type, binder: Global.Symbol): Global.Type

    Compute the type T implied for a value v matched by a pattern pat (with expected type pt).

    Compute the type T implied for a value v matched by a pattern pat (with expected type pt).

    Usually, this is the pattern's type because pattern matching implies instance-of checks.

    However, Stable Identifier and Literal patterns are matched using ==, which does not imply a type for the binder that binds the matched value.

    See scala/bug#1503, scala/bug#5024: don't cast binders to types we're not sure they have

    TODO: update spec as follows (deviation between **):

    A pattern binder x@p consists of a pattern variable x and a pattern p. The type of the variable x is the static type T **IMPLIED BY** the pattern p. This pattern matches any value v matched by the pattern p **Deleted: , provided the run-time type of v is also an instance of T, ** and it binds the variable name to that value.

    Addition: A pattern p _implies_ a type T if the pattern matches only values of the type T.

    Definition Classes
    TreeAndTypeAnalysis
  9. def clone(): AnyRef
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  10. final def dealiasWiden(tp: Global.Type): Global.Type
    Attributes
    protected
    Definition Classes
    Interface
  11. def enabled: Boolean

    Is this component enabled? Default is true.

    Is this component enabled? Default is true.

    Definition Classes
    SubComponent
  12. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  13. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  14. def equivalentTree(a: Global.Tree, b: Global.Tree): Boolean
    Definition Classes
    TreeAndTypeAnalysis
  15. def finalize(): Unit
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  16. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
  17. val global: Global.this.type
    Definition Classes
    patmat → ScalacPatternExpanders → TreeDSL → Debugging → TypingTransformers → SubComponent
  18. final def hasStableSymbol(p: Global.Tree): Boolean
    Attributes
    protected
    Definition Classes
    Interface
  19. def hashCode(): Int

    SubComponent are added to a HashSet and two phases are the same if they have the same name

    SubComponent are added to a HashSet and two phases are the same if they have the same name

    Definition Classes
    SubComponent → AnyRef → Any
  20. val initial: Boolean

    True if this phase runs before all other phases.

    True if this phase runs before all other phases. Usually, parser.

    Definition Classes
    SubComponent
  21. def instanceOfTpImplies(tp: Global.Type, tpImplied: Global.Type): Boolean
    Definition Classes
    TreeAndTypeAnalysis
  22. val internal: Boolean

    True if this phase is not provided by a plug-in.

    True if this phase is not provided by a plug-in.

    Definition Classes
    SubComponent
  23. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  24. final def mkFALSE: Global.Literal
    Attributes
    protected
    Definition Classes
    Interface
  25. final def mkTRUE: Global.Literal
    Attributes
    protected
    Definition Classes
    Interface
  26. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  27. def newPhase(prev: nsc.Phase): StdPhase

    Create a new phase which applies transformer

    Create a new phase which applies transformer

    Definition Classes
    Transform → SubComponent
  28. def newTransformer(unit: Global.CompilationUnit): Global.Transformer

    The transformer factory

    The transformer factory

    Definition Classes
    PatternMatching → Transform
  29. final def notify(): Unit
    Definition Classes
    AnyRef
  30. final def notifyAll(): Unit
    Definition Classes
    AnyRef
  31. def ownPhase: nsc.Phase

    The phase corresponding to this subcomponent in the current compiler run

    The phase corresponding to this subcomponent in the current compiler run

    Definition Classes
    SubComponent
  32. val phaseName: String

    The name of the phase

    The name of the phase

    Definition Classes
    PatternMatching → SubComponent
  33. def phaseNewFlags: Long

    New flags defined by the phase which are not valid before

    New flags defined by the phase which are not valid before

    Definition Classes
    SubComponent
  34. def phaseNextFlags: Long

    New flags defined by the phase which are not valid until immediately after it

    New flags defined by the phase which are not valid until immediately after it

    Definition Classes
    SubComponent
  35. def removeCPSFromPt(pt: Global.Type): Global.Type
    Definition Classes
    MatchCps
  36. val requires: List[String]

    Names of phases required by this component.

    Names of phases required by this component. Default is Nil.

    Definition Classes
    SubComponent
  37. val runsAfter: collection.immutable.List[String]
    Definition Classes
    patmat → SubComponent
  38. val runsBefore: List[String]

    Names of phases that must run after this phase.

    Names of phases that must run after this phase. Default is Nil.

    Definition Classes
    SubComponent
  39. val runsRightAfter: None.type
    Definition Classes
    patmat → SubComponent
  40. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  41. val terminal: Boolean

    True if this phase runs after all other phases.

    True if this phase runs after all other phases. Usually, terminal.

    Definition Classes
    SubComponent
  42. def toString(): String
    Definition Classes
    AnyRef → Any
  43. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  44. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  45. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  46. object CODE
    Definition Classes
    TreeDSL
  47. object debug
    Definition Classes
    Debugging
  48. object vpmName
    Definition Classes
    Interface
  49. object Suppression extends Serializable
    Definition Classes
    MatchTreeMaking
  50. object alignPatterns extends ScalacPatternExpander
    Definition Classes
    ScalacPatternExpanders

Inherited from PatternMatching

Inherited from ScalacPatternExpanders

Inherited from MatchWarnings

Inherited from MatchOptimization

Inherited from MatchAnalysis

Inherited from MatchApproximation

Inherited from Solving

Inherited from ScalaLogic

Inherited from TreeAndTypeAnalysis

Inherited from Logic

Inherited from MatchCps

Inherited from MatchTreeMaking

Inherited from MatchCodeGen

Inherited from MatchTranslation

Inherited from Interface

Inherited from TreeDSL

Inherited from Debugging

Inherited from TypingTransformers

Inherited from Transform

Inherited from SubComponent

Inherited from AnyRef

Inherited from Any

Ungrouped