scala.tools.nsc.transform.patmat.MatchOptimization

CommonSubconditionElimination

trait CommonSubconditionElimination extends OptimizedCodegen with MatchApproximator

Linear Supertypes
MatchOptimization.MatchApproximator, MatchOptimization.TreesAndTypesDomain, MatchOptimization.CheckableTreeAndTypeAnalysis, MatchOptimization.PropositionalLogic, MatchOptimization.TreeMakers, MatchOptimization.OptimizedCodegen, MatchOptimization.OptimizedMatchMonadInterface, MatchOptimization.TypedSubstitution, MatchOptimization.CodegenCore, MatchOptimization.MatchMonadInterface, AnyRef, Any
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  1. CommonSubconditionElimination
  2. MatchApproximator
  3. TreesAndTypesDomain
  4. CheckableTreeAndTypeAnalysis
  5. PropositionalLogic
  6. TreeMakers
  7. OptimizedCodegen
  8. OptimizedMatchMonadInterface
  9. TypedSubstitution
  10. CodegenCore
  11. MatchMonadInterface
  12. AnyRef
  13. Any
Implicitly
  1. by any2stringadd
  2. by any2stringfmt
  3. by any2ArrowAssoc
  4. by any2Ensuring
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Type Members

  1. trait AbsCodegen extends AnyRef

    Definition Classes
    CodegenCore
  2. trait AbsVar extends AnyRef

    Definition Classes
    PropositionalLogic
  3. case class AlternativesTreeMaker(prevBinder: Global.Symbol, altss: List[List[TreeMaker]], pos: Position) extends TreeMaker with NoNewBinders with Product with Serializable

    Definition Classes
    TreeMakers
  4. case class And(a: Prop, b: Prop) extends Prop with Product with Serializable

    Definition Classes
    PropositionalLogic
  5. case class BodyTreeMaker(body: Global.Tree, matchPt: Global.Type) extends TreeMaker with NoNewBinders with Product with Serializable

    Definition Classes
    TreeMakers
  6. trait Casegen extends AbsCodegen

    Definition Classes
    CodegenCore
  7. abstract class CommonCodegen extends AbsCodegen

    Definition Classes
    CodegenCore
  8. abstract class CondTreeMaker extends FunTreeMaker

    Definition Classes
    TreeMakers
  9. sealed abstract class Const extends AnyRef

  10. case class Eq(p: Var, q: Const) extends Prop with Product with Serializable

    Definition Classes
    PropositionalLogic
  11. case class EqualityTestTreeMaker(prevBinder: Global.Symbol, patTree: Global.Tree, pos: Position) extends CondTreeMaker with Product with Serializable

    Definition Classes
    TreeMakers
  12. 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 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).

  13. abstract type Formula

    Definition Classes
    PropositionalLogic
  14. abstract type FormulaBuilder

    Definition Classes
    PropositionalLogic
  15. abstract class FunTreeMaker extends TreeMaker

    Definition Classes
    TreeMakers
  16. case class GuardTreeMaker(guardTree: Global.Tree) extends TreeMaker with NoNewBinders with Product with Serializable

    Definition Classes
    TreeMakers
  17. type Model = Map[Sym, Boolean]

    Definition Classes
    PropositionalLogic
  18. trait NoNewBinders extends TreeMaker

    Definition Classes
    TreeMakers
  19. case class Not(a: Prop) extends Prop with Product with Serializable

    Definition Classes
    PropositionalLogic
  20. case class Or(a: Prop, b: Prop) extends Prop with Product with Serializable

    Definition Classes
    PropositionalLogic
  21. trait PreserveSubPatBinders extends TreeMaker

    Definition Classes
    TreeMakers
  22. case class ProductExtractorTreeMaker(prevBinder: Global.Symbol, extraCond: Option[Global.Tree])(subPatBinders: List[Global.Symbol], subPatRefs: List[Global.Tree], mutableBinders: List[Global.Symbol], binderKnownNonNull: Boolean, ignoredSubPatBinders: Set[Global.Symbol]) extends FunTreeMaker with PreserveSubPatBinders with Product with Serializable

    An optimized version of ExtractorTreeMaker for Products.

  23. class Prop extends AnyRef

    Definition Classes
    PropositionalLogic
  24. trait PropMap extends AnyRef

    Definition Classes
    PropositionalLogic
  25. trait PropTraverser extends AnyRef

    Definition Classes
    PropositionalLogic
  26. class ReusedCondTreeMaker extends TreeMaker

  27. case class ReusingCondTreeMaker(sharedPrefix: List[CommonSubconditionElimination.Test], toReused: (CommonSubconditionElimination.TreeMaker) ⇒ CommonSubconditionElimination.TreeMaker) extends TreeMaker with Product with Serializable

  28. case class SubstOnlyTreeMaker(prevBinder: Global.Symbol, nextBinder: Global.Symbol) extends TreeMaker with Product with Serializable

    Definition Classes
    TreeMakers
  29. class Substitution extends AnyRef

    Definition Classes
    TypedSubstitution
  30. abstract case class Sym(variable: Var, const: Const) extends Prop with Product with Serializable

    Definition Classes
    PropositionalLogic
  31. case class Test(prop: MatchApproximator.Prop, treeMaker: MatchApproximator.TreeMaker) extends Product with Serializable

    Definition Classes
    MatchApproximator
  32. type Tree = Global.Tree

  33. abstract class TreeMaker extends AnyRef

    Definition Classes
    TreeMakers
  34. class TreeMakersToProps extends AnyRef

    Definition Classes
    MatchApproximator
  35. class TreeMakersToPropsIgnoreNullChecks extends TreeMakersToProps

    Definition Classes
    MatchApproximator
  36. case class TrivialTreeMaker(tree: Global.Tree) extends TreeMaker with NoNewBinders with Product with Serializable

    Definition Classes
    TreeMakers
  37. type Type = Global.Type

  38. sealed class TypeConst extends Const

  39. trait TypeConstExtractor extends AnyRef

    Definition Classes
    PropositionalLogic
  40. case class TypeTestTreeMaker(prevBinder: Global.Symbol, testedBinder: Global.Symbol, expectedTp: Global.Type, nextBinderTp: Global.Type)(pos: Position, extractorArgTypeTest: Boolean = false) extends CondTreeMaker with Product with Serializable

    implements the run-time aspects of (§8.

  41. class UniqueSym extends Sym

    Definition Classes
    PropositionalLogic
  42. sealed class ValueConst extends Const

  43. trait ValueConstExtractor extends AnyRef

    Definition Classes
    PropositionalLogic
  44. class Var extends AbsVar

  45. trait VarExtractor extends AnyRef

    Definition Classes
    PropositionalLogic

Abstract Value Members

  1. abstract val EmptyModel: Model

    Definition Classes
    PropositionalLogic
  2. abstract val NoModel: Model

    Definition Classes
    PropositionalLogic
  3. abstract def addFormula(buff: FormulaBuilder, f: Formula): Unit

    Definition Classes
    PropositionalLogic
  4. abstract def analyzeCases(prevBinder: Global.Symbol, cases: List[List[TreeMaker]], pt: Global.Type, suppression: MatchOptimization.Suppression): Unit

    Definition Classes
    TreeMakers
  5. abstract def andFormula(a: Formula, b: Formula): Formula

    Definition Classes
    PropositionalLogic
  6. abstract def cnfString(f: Formula): String

    Definition Classes
    PropositionalLogic
  7. abstract def eqFreePropToSolvable(p: Prop): Formula

    Definition Classes
    PropositionalLogic
  8. abstract def findAllModelsFor(f: Formula): List[Model]

    Definition Classes
    PropositionalLogic
  9. abstract def findModelFor(f: Formula): Model

    Definition Classes
    PropositionalLogic
  10. abstract def formulaBuilder: FormulaBuilder

    Definition Classes
    PropositionalLogic
  11. abstract def optimizeCases(prevBinder: Global.Symbol, cases: List[List[TreeMaker]], pt: Global.Type): (List[List[TreeMaker]], List[Global.Tree])

    Definition Classes
    TreeMakers
  12. abstract def simplifyFormula(a: Formula): Formula

    Definition Classes
    PropositionalLogic
  13. abstract def toFormula(buff: FormulaBuilder): Formula

    Definition Classes
    PropositionalLogic
  14. abstract val typer: (analyzer)#Typer

    Definition Classes
    CheckableTreeAndTypeAnalysis

Concrete 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 CommonSubconditionElimination to StringAdd performed by method any2stringadd in scala.Predef.
    Definition Classes
    StringAdd
  5. def ->[B](y: B): (CommonSubconditionElimination, B)

    Implicit information
    This member is added by an implicit conversion from CommonSubconditionElimination to ArrowAssoc[CommonSubconditionElimination] performed by method any2ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  6. def /\(props: Iterable[Prop]): Prop

    Definition Classes
    PropositionalLogic
  7. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  8. final def ==(arg0: Any): Boolean

    Definition Classes
    Any
  9. object AnalysisBudget

    Definition Classes
    PropositionalLogic
  10. object Const

    Definition Classes
    TreesAndTypesDomain
  11. object EmptySubstitution extends Substitution

    Definition Classes
    TypedSubstitution
  12. object False extends Prop with Product with Serializable

    Definition Classes
    PropositionalLogic
  13. object IrrefutableExtractorTreeMaker

    Definition Classes
    TreeMakers
  14. object NullConst extends Const with Product with Serializable

  15. lazy val NullTp: Global.UniqueConstantType

    Definition Classes
    TreesAndTypesDomain
  16. object ReusedCondTreeMaker

  17. object Substitution

    Definition Classes
    TypedSubstitution
  18. object Sym extends Serializable

    Definition Classes
    PropositionalLogic
  19. object Test extends Serializable

    Definition Classes
    MatchApproximator
  20. object True extends Prop with Product with Serializable

    Definition Classes
    PropositionalLogic
  21. object TypeConst extends TypeConstExtractor

  22. object TypeTestTreeMaker extends Serializable

    Definition Classes
    TreeMakers
  23. object ValueConst extends ValueConstExtractor

  24. object Var extends VarExtractor

  25. def \/(props: Iterable[Prop]): Prop

    Definition Classes
    PropositionalLogic
  26. def approximateMatchConservative(root: Global.Symbol, cases: List[List[TreeMaker]]): List[List[Test]]

    Definition Classes
    MatchApproximator
  27. final def asInstanceOf[T0]: T0

    Definition Classes
    Any
  28. final def caseWithoutBodyToProp(tests: List[Test]): Prop

    Attributes
    protected
    Definition Classes
    MatchApproximator
  29. def checkableType(tp: Global.Type): Global.Type

    Definition Classes
    CheckableTreeAndTypeAnalysis
  30. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  31. def codegen: AbsCodegen

    Definition Classes
    OptimizedCodegenCodegenCore
  32. def combineCases(scrut: Global.Tree, scrutSym: Global.Symbol, casesRaw: List[List[TreeMaker]], pt: Global.Type, owner: Global.Symbol, matchFailGenOverride: Option[(Global.Tree) ⇒ Global.Tree]): Global.Tree

    Definition Classes
    TreeMakers
  33. def combineCasesNoSubstOnly(scrut: Global.Tree, scrutSym: Global.Symbol, casesNoSubstOnly: List[List[TreeMaker]], pt: Global.Type, owner: Global.Symbol, matchFailGenOverride: Option[(Global.Tree) ⇒ Global.Tree]): Global.Tree

    Definition Classes
    TreeMakers
  34. def combineExtractors(treeMakers: List[TreeMaker])(casegen: Casegen): Global.Tree

    Definition Classes
    TreeMakers
  35. val debugInfoEmitVars: Boolean

    Attributes
    protected
    Definition Classes
    TreeMakers
  36. def doCSE(prevBinder: Global.Symbol, cases: List[List[TreeMaker]], pt: Type): List[List[TreeMaker]]

    a flow-sensitive, generalised, common sub-expression elimination reuse knowledge from performed tests the only sub-expressions we consider are the conditions and results of the three tests (type, type&equality, equality) when a sub-expression is shared, it is stored in a mutable variable the variable is floated up so that its scope includes all of the program that shares it we generalize sharing to implication, where b reuses a if a => b and priors(a) => priors(b) (the priors of a sub expression form the path through the decision tree)

  37. def emitSwitch(scrut: Global.Tree, scrutSym: Global.Symbol, cases: List[List[TreeMaker]], pt: Global.Type, matchFailGenOverride: Option[(Global.Tree) ⇒ Global.Tree], unchecked: Boolean): Option[Global.Tree]

    Definition Classes
    TreeMakers
  38. def emitTypeSwitch(bindersAndCases: List[(Global.Symbol, List[TreeMaker])], pt: Global.Type): Option[List[Global.CaseDef]]

    Definition Classes
    TreeMakers
  39. def ensuring(cond: (CommonSubconditionElimination) ⇒ Boolean, msg: ⇒ Any): CommonSubconditionElimination

    Implicit information
    This member is added by an implicit conversion from CommonSubconditionElimination to Ensuring[CommonSubconditionElimination] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  40. def ensuring(cond: (CommonSubconditionElimination) ⇒ Boolean): CommonSubconditionElimination

    Implicit information
    This member is added by an implicit conversion from CommonSubconditionElimination to Ensuring[CommonSubconditionElimination] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  41. def ensuring(cond: Boolean, msg: ⇒ Any): CommonSubconditionElimination

    Implicit information
    This member is added by an implicit conversion from CommonSubconditionElimination to Ensuring[CommonSubconditionElimination] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  42. def ensuring(cond: Boolean): CommonSubconditionElimination

    Implicit information
    This member is added by an implicit conversion from CommonSubconditionElimination to Ensuring[CommonSubconditionElimination] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  43. def enumerateSubtypes(tp: Global.Type): Option[List[Global.Type]]

    Definition Classes
    CheckableTreeAndTypeAnalysis
  44. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  45. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any
  46. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  47. def fixerUpper(origOwner: Global.Symbol, pos: Position): Global.Traverser

    Attributes
    protected
    Definition Classes
    TreeMakers
  48. def formatted(fmtstr: String): String

    Implicit information
    This member is added by an implicit conversion from CommonSubconditionElimination to StringFormat performed by method any2stringfmt in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()
  49. def freshName(prefix: String): Global.TermName

    Definition Classes
    CodegenCore
  50. def freshSym(pos: Position, tp: Global.Type = NoType, prefix: String = "x"): Global.TermSymbol

    Definition Classes
    CodegenCore
  51. def gatherVariables(p: Prop): Set[Var]

    Definition Classes
    PropositionalLogic
  52. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any
  53. def hashCode(): Int

    Definition Classes
    AnyRef → Any
  54. def inMatchMonad(tp: Global.Type): Global.Type

  55. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any
  56. final def matchMonadResult(tp: Global.Type): Global.Type

    Definition Classes
    MatchMonadInterface
  57. def matchMonadSym: Global.ClassSymbol

    Attributes
    protected
    Definition Classes
    OptimizedMatchMonadInterfaceMatchMonadInterface
  58. val matchOwner: Global.Symbol

    Definition Classes
    MatchMonadInterface
  59. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  60. def newSynthCaseLabel(name: String): Global.MethodSymbol

    Definition Classes
    CodegenCore
  61. final def notify(): Unit

    Definition Classes
    AnyRef
  62. final def notifyAll(): Unit

    Definition Classes
    AnyRef
  63. object optimizedCodegen extends CommonCodegen

    Definition Classes
    OptimizedCodegen
  64. def prepareNewAnalysis(): Unit

  65. def propToSolvable(p: Prop): Formula

    Definition Classes
    PropositionalLogic
  66. def propagateSubstitution(treeMakers: List[TreeMaker], initial: Substitution): List[TreeMaker]

    Definition Classes
    TreeMakers
  67. def pureType(tp: Global.Type): Global.Type

  68. def removeSubstOnly(makers: List[TreeMaker]): collection.immutable.List[TreeMaker]

    Definition Classes
    TreeMakers
  69. def removeVarEq(props: List[Prop], modelNull: Boolean = false): (Formula, List[Formula])

    Definition Classes
    PropositionalLogic
  70. def reportMissingCases(pos: Position, counterExamples: List[String]): Unit

    Definition Classes
    MatchMonadInterface
  71. def reportUnreachable(pos: Position): Unit

    Definition Classes
    MatchMonadInterface
  72. def showTests(testss: List[List[Test]]): Unit

    Definition Classes
    MatchApproximator
  73. def showTreeMakers(cases: List[List[TreeMaker]]): Unit

    Definition Classes
    MatchApproximator
  74. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef
  75. def toString(): String

    Definition Classes
    AnyRef → Any
  76. def uncheckableType(tp: Global.Type): Boolean

    Definition Classes
    CheckableTreeAndTypeAnalysis
  77. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  78. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  79. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  80. def [B](y: B): (CommonSubconditionElimination, B)

    Implicit information
    This member is added by an implicit conversion from CommonSubconditionElimination to ArrowAssoc[CommonSubconditionElimination] performed by method any2ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Shadowed Implicit Value Members

  1. val self: Any

    Implicit information
    This member is added by an implicit conversion from CommonSubconditionElimination 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:
    (commonSubconditionElimination: StringAdd).self
    Definition Classes
    StringAdd
  2. val self: Any

    Implicit information
    This member is added by an implicit conversion from CommonSubconditionElimination 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:
    (commonSubconditionElimination: StringFormat).self
    Definition Classes
    StringFormat

Deprecated Value Members

  1. def x: CommonSubconditionElimination

    Implicit information
    This member is added by an implicit conversion from CommonSubconditionElimination to ArrowAssoc[CommonSubconditionElimination] 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:
    (commonSubconditionElimination: ArrowAssoc[CommonSubconditionElimination]).x
    Definition Classes
    ArrowAssoc
    Annotations
    @deprecated
    Deprecated

    (Since version 2.10.0) Use leftOfArrow instead

  2. def x: CommonSubconditionElimination

    Implicit information
    This member is added by an implicit conversion from CommonSubconditionElimination to Ensuring[CommonSubconditionElimination] 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:
    (commonSubconditionElimination: Ensuring[CommonSubconditionElimination]).x
    Definition Classes
    Ensuring
    Annotations
    @deprecated
    Deprecated

    (Since version 2.10.0) Use resultOfEnsuring instead

Inherited from MatchOptimization.MatchApproximator

Inherited from MatchOptimization.TreesAndTypesDomain

Inherited from MatchOptimization.CheckableTreeAndTypeAnalysis

Inherited from MatchOptimization.PropositionalLogic

Inherited from MatchOptimization.TreeMakers

Inherited from MatchOptimization.OptimizedCodegen

Inherited from MatchOptimization.OptimizedMatchMonadInterface

Inherited from MatchOptimization.TypedSubstitution

Inherited from MatchOptimization.CodegenCore

Inherited from MatchOptimization.MatchMonadInterface

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from CommonSubconditionElimination to StringAdd

Inherited by implicit conversion any2stringfmt from CommonSubconditionElimination to StringFormat

Inherited by implicit conversion any2ArrowAssoc from CommonSubconditionElimination to ArrowAssoc[CommonSubconditionElimination]

Inherited by implicit conversion any2Ensuring from CommonSubconditionElimination to Ensuring[CommonSubconditionElimination]

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