scala.tools.nsc.transform.patmat.MatchAnalysis

# MatchAnalyzer

#### trait MatchAnalyzer extends MatchApproximator

Linear Supertypes
MatchAnalysis.MatchApproximator, MatchAnalysis.TreesAndTypesDomain, MatchAnalysis.CheckableTreeAndTypeAnalysis, MatchAnalysis.PropositionalLogic, MatchAnalysis.TreeMakers, MatchAnalysis.CodegenCore, MatchAnalysis.TypedSubstitution, MatchAnalysis.MatchMonadInterface, AnyRef, Any
Known Subclasses
OptimizingMatchTranslator
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Inherited

1. MatchAnalyzer
2. MatchApproximator
3. TreesAndTypesDomain
4. CheckableTreeAndTypeAnalysis
5. PropositionalLogic
6. TreeMakers
7. CodegenCore
8. TypedSubstitution
9. MatchMonadInterface
10. AnyRef
11. 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

   Definition Classes
     TreesAndTypesDomain → PropositionalLogic

10. #### case class ConstructorExample (cls: Global.Symbol, ctorArgs: List[CounterExample]) extends CounterExample with Product with Serializable

11. #### class CounterExample extends AnyRef

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

    Definition Classes
      PropositionalLogic

13. #### case class EqualityTestTreeMaker (prevBinder: Global.Symbol, patTree: Global.Tree, pos: Position) extends CondTreeMaker with Product with Serializable

    Definition Classes
      TreeMakers

14. #### 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).

15. #### abstract type Formula

    Definition Classes
      PropositionalLogic

16. #### abstract type FormulaBuilder

    Definition Classes
      PropositionalLogic

17. #### abstract class FunTreeMaker extends TreeMaker

    Definition Classes
      TreeMakers

18. #### case class GuardTreeMaker (guardTree: Global.Tree) extends TreeMaker with NoNewBinders with Product with Serializable

    Definition Classes
      TreeMakers

19. #### case class ListExample (ctorArgs: List[CounterExample]) extends CounterExample with Product with Serializable

20. #### type Model = Map[Sym, Boolean]

    Definition Classes
      PropositionalLogic

21. #### case class NegativeExample (eqTo: MatchAnalyzer.Const, nonTrivialNonEqualTo: List[MatchAnalyzer.Const]) extends CounterExample with Product with Serializable

22. #### trait NoNewBinders extends TreeMaker

    Definition Classes
      TreeMakers

23. #### case class Not (a: Prop) extends Prop with Product with Serializable

    Definition Classes
      PropositionalLogic

24. #### case class Or (a: Prop, b: Prop) extends Prop with Product with Serializable

    Definition Classes
      PropositionalLogic

25. #### trait PreserveSubPatBinders extends TreeMaker

    Definition Classes
      TreeMakers

26. #### 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.

27. #### class Prop extends AnyRef

    Definition Classes
      PropositionalLogic

28. #### trait PropMap extends AnyRef

    Definition Classes
      PropositionalLogic

29. #### trait PropTraverser extends AnyRef

    Definition Classes
      PropositionalLogic

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

    Definition Classes
      TreeMakers

31. #### class Substitution extends AnyRef

    Definition Classes
      TypedSubstitution

32. #### abstract case class Sym (variable: Var, const: Const) extends Prop with Product with Serializable

    Definition Classes
      PropositionalLogic

33. #### case class Test (prop: MatchApproximator.Prop, treeMaker: MatchApproximator.TreeMaker) extends Product with Serializable

    Definition Classes
      MatchApproximator

34. #### type Tree = Global.Tree

    Definition Classes
      TreesAndTypesDomain → PropositionalLogic

35. #### abstract class TreeMaker extends AnyRef

    Definition Classes
      TreeMakers

36. #### class TreeMakersToProps extends AnyRef

    Definition Classes
      MatchApproximator

37. #### class TreeMakersToPropsIgnoreNullChecks extends TreeMakersToProps

    Definition Classes
      MatchApproximator

38. #### case class TrivialTreeMaker (tree: Global.Tree) extends TreeMaker with NoNewBinders with Product with Serializable

    Definition Classes
      TreeMakers

39. #### case class TupleExample (ctorArgs: List[CounterExample]) extends CounterExample with Product with Serializable

40. #### type Type = Global.Type

    Definition Classes
      TreesAndTypesDomain → PropositionalLogic

41. #### sealed class TypeConst extends Const

    Definition Classes
      TreesAndTypesDomain → PropositionalLogic

42. #### trait TypeConstExtractor extends AnyRef

    Definition Classes
      PropositionalLogic

43. #### case class TypeExample (c: MatchAnalyzer.Const) extends CounterExample with Product with Serializable

44. #### 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.

45. #### class UniqueSym extends Sym

    Definition Classes
      PropositionalLogic

46. #### sealed class ValueConst extends Const

    Definition Classes
      TreesAndTypesDomain → PropositionalLogic

47. #### trait ValueConstExtractor extends AnyRef

    Definition Classes
      PropositionalLogic

48. #### case class ValueExample (c: MatchAnalyzer.ValueConst) extends CounterExample with Product with Serializable

49. #### class Var extends AbsVar

    Definition Classes
      TreesAndTypesDomain → PropositionalLogic

50. #### 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 andFormula(a: Formula, b: Formula): Formula

   Definition Classes
     PropositionalLogic

5. #### abstract def cnfString(f: Formula): String

   Definition Classes
     PropositionalLogic

6. #### abstract def codegen: AbsCodegen

   Definition Classes
     CodegenCore

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 inMatchMonad(tp: Global.Type): Global.Type

    Definition Classes
      MatchMonadInterface

12. #### abstract def matchMonadSym: Global.Symbol

    Attributes
      protected
    Definition Classes
      MatchMonadInterface

13. #### abstract def optimizeCases(prevBinder: Global.Symbol, cases: List[List[TreeMaker]], pt: Global.Type): (List[List[TreeMaker]], List[Global.Tree])

    Definition Classes
      TreeMakers

14. #### abstract def pureType(tp: Global.Type): Global.Type

    Definition Classes
      MatchMonadInterface

15. #### abstract def simplifyFormula(a: Formula): Formula

    Definition Classes
      PropositionalLogic

16. #### abstract def toFormula(buff: FormulaBuilder): Formula

    Definition Classes
      PropositionalLogic

17. #### 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 MatchAnalyzer to StringAdd performed by method any2stringadd in scala.Predef.
   Definition Classes
     StringAdd

5. #### def ->[B](y: B): (MatchAnalyzer, B)

   Implicit information
     This member is added by an implicit conversion from MatchAnalyzer to ArrowAssoc[MatchAnalyzer] 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 CounterExample

12. #### object EmptySubstitution extends Substitution

    Definition Classes
      TypedSubstitution

13. #### object False extends Prop with Product with Serializable

    Definition Classes
      PropositionalLogic

14. #### object IrrefutableExtractorTreeMaker

    Definition Classes
      TreeMakers

15. #### object NoExample extends CounterExample with Product with Serializable

16. #### object NullConst extends Const with Product with Serializable

    Definition Classes
      TreesAndTypesDomain → PropositionalLogic

17. #### lazy val NullTp: Global.UniqueConstantType

    Definition Classes
      TreesAndTypesDomain

18. #### object Substitution

    Definition Classes
      TypedSubstitution

19. #### object Sym extends Serializable

    Definition Classes
      PropositionalLogic

20. #### object Test extends Serializable

    Definition Classes
      MatchApproximator

21. #### object True extends Prop with Product with Serializable

    Definition Classes
      PropositionalLogic

22. #### object TypeConst extends TypeConstExtractor

    Definition Classes
      TreesAndTypesDomain → PropositionalLogic

23. #### object TypeTestTreeMaker extends Serializable

    Definition Classes
      TreeMakers

24. #### object ValueConst extends ValueConstExtractor

    Definition Classes
      TreesAndTypesDomain → PropositionalLogic

25. #### object Var extends VarExtractor

    Definition Classes
      TreesAndTypesDomain → PropositionalLogic

26. #### object WildcardExample extends CounterExample with Product with Serializable

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

    Definition Classes
      PropositionalLogic

28. #### def analyzeCases(prevBinder: Global.Symbol, cases: List[List[TreeMaker]], pt: Type, suppression: MatchAnalysis.Suppression): Unit

    Definition Classes
      MatchAnalyzer → TreeMakers

29. #### def approximateMatchConservative(root: Global.Symbol, cases: List[List[TreeMaker]]): List[List[Test]]

    Definition Classes
      MatchApproximator

30. #### final def asInstanceOf[T0]: T0

    Definition Classes
      Any

31. #### final def caseWithoutBodyToProp(tests: List[Test]): Prop

    Attributes
      protected
    Definition Classes
      MatchApproximator

32. #### def checkableType(tp: Global.Type): Global.Type

    Definition Classes
      CheckableTreeAndTypeAnalysis

33. #### def clone(): AnyRef

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

34. #### 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

35. #### 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

36. #### def combineExtractors(treeMakers: List[TreeMaker])(casegen: Casegen): Global.Tree

    Definition Classes
      TreeMakers

37. #### val debugInfoEmitVars: Boolean

    Attributes
      protected
    Definition Classes
      TreeMakers

38. #### 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

39. #### def emitTypeSwitch(bindersAndCases: List[(Global.Symbol, List[TreeMaker])], pt: Global.Type): Option[List[Global.CaseDef]]

    Definition Classes
      TreeMakers

40. #### def ensuring(cond: (MatchAnalyzer) ⇒ Boolean, msg: ⇒ Any): MatchAnalyzer

    Implicit information
      This member is added by an implicit conversion from MatchAnalyzer to Ensuring[MatchAnalyzer] performed by method any2Ensuring in scala.Predef.
    Definition Classes
      Ensuring

41. #### def ensuring(cond: (MatchAnalyzer) ⇒ Boolean): MatchAnalyzer

    Implicit information
      This member is added by an implicit conversion from MatchAnalyzer to Ensuring[MatchAnalyzer] performed by method any2Ensuring in scala.Predef.
    Definition Classes
      Ensuring

42. #### def ensuring(cond: Boolean, msg: ⇒ Any): MatchAnalyzer

    Implicit information
      This member is added by an implicit conversion from MatchAnalyzer to Ensuring[MatchAnalyzer] performed by method any2Ensuring in scala.Predef.
    Definition Classes
      Ensuring

43. #### def ensuring(cond: Boolean): MatchAnalyzer

    Implicit information
      This member is added by an implicit conversion from MatchAnalyzer to Ensuring[MatchAnalyzer] performed by method any2Ensuring in scala.Predef.
    Definition Classes
      Ensuring

44. #### def enumerateSubtypes(tp: Global.Type): Option[List[Global.Type]]

    Definition Classes
      CheckableTreeAndTypeAnalysis

45. #### final def eq(arg0: AnyRef): Boolean

    Definition Classes
      AnyRef

46. #### def equals(arg0: Any): Boolean

    Definition Classes
      AnyRef → Any

47. #### def exhaustive(prevBinder: Global.Symbol, cases: List[List[TreeMaker]], pt: Type): List[String]

48. #### def finalize(): Unit

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

49. #### def fixerUpper(origOwner: Global.Symbol, pos: Position): Global.Traverser

    Attributes
      protected
    Definition Classes
      TreeMakers

50. #### def formatted(fmtstr: String): String

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

51. #### def freshName(prefix: String): Global.TermName

    Definition Classes
      CodegenCore

52. #### def freshSym(pos: Position, tp: Global.Type = NoType, prefix: String = "x"): Global.TermSymbol

    Definition Classes
      CodegenCore

53. #### def gatherVariables(p: Prop): Set[Var]

    Definition Classes
      PropositionalLogic

54. #### final def getClass(): Class[_]

    Definition Classes
      AnyRef → Any

55. #### def hashCode(): Int

    Definition Classes
      AnyRef → Any

56. #### final def isInstanceOf[T0]: Boolean

    Definition Classes
      Any

57. #### final def matchMonadResult(tp: Global.Type): Global.Type

    Definition Classes
      MatchMonadInterface

58. #### val matchOwner: Global.Symbol

    Definition Classes
      MatchMonadInterface

59. #### def modelToCounterExample(scrutVar: Var)(model: Model): CounterExample

60. #### def modelToVarAssignment(model: Model): Map[Var, (Seq[Const], Seq[Const])]

61. #### final def ne(arg0: AnyRef): Boolean

    Definition Classes
      AnyRef

62. #### def newSynthCaseLabel(name: String): Global.MethodSymbol

    Definition Classes
      CodegenCore

63. #### final def notify(): Unit

    Definition Classes
      AnyRef

64. #### final def notifyAll(): Unit

    Definition Classes
      AnyRef

65. #### def prepareNewAnalysis(): Unit

    Definition Classes
      TreesAndTypesDomain → PropositionalLogic

66. #### def propToSolvable(p: Prop): Formula

    Definition Classes
      PropositionalLogic

67. #### def propagateSubstitution(treeMakers: List[TreeMaker], initial: Substitution): List[TreeMaker]

    Definition Classes
      TreeMakers

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. #### def uncheckedWarning(pos: Position, msg: String): Any

78. #### def unreachableCase(prevBinder: Global.Symbol, cases: List[List[TreeMaker]], pt: Type): Option[Int]

79. #### def varAssignmentString(varAssignment: Map[Var, (Seq[Const], Seq[Const])]): String

80. #### final def wait(): Unit

    Definition Classes
      AnyRef
    Annotations
      @throws( ... )

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

    Definition Classes
      AnyRef
    Annotations
      @throws( ... )

82. #### final def wait(arg0: Long): Unit

    Definition Classes
      AnyRef
    Annotations
      @throws( ... )

83. #### def warn(pos: Position, ex: Logic.PropositionalLogic.AnalysisBudget.Exception, kind: String): Any

84. #### def →[B](y: B): (MatchAnalyzer, B)

    Implicit information
      This member is added by an implicit conversion from MatchAnalyzer to ArrowAssoc[MatchAnalyzer] 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 MatchAnalyzer 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:

         (matchAnalyzer: StringAdd).self

   Definition Classes
     StringAdd

2. #### val self: Any

   Implicit information
     This member is added by an implicit conversion from MatchAnalyzer 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:

         (matchAnalyzer: StringFormat).self

   Definition Classes
     StringFormat

### Deprecated Value Members

1. #### def x: MatchAnalyzer

   Implicit information
     This member is added by an implicit conversion from MatchAnalyzer to ArrowAssoc[MatchAnalyzer] 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:

         (matchAnalyzer: ArrowAssoc[MatchAnalyzer]).x

   Definition Classes
     ArrowAssoc
   Annotations
     @deprecated
   Deprecated

     (Since version 2.10.0) Use `leftOfArrow`instead``

2. #### def x: MatchAnalyzer

   Implicit information
     This member is added by an implicit conversion from MatchAnalyzer to Ensuring[MatchAnalyzer] 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:

         (matchAnalyzer: Ensuring[MatchAnalyzer]).x

   Definition Classes
     Ensuring
   Annotations
     @deprecated
   Deprecated

     (Since version 2.10.0) Use `resultOfEnsuring`instead``

### Inherited from MatchAnalysis.MatchApproximator

### Inherited from MatchAnalysis.TreesAndTypesDomain

### Inherited from MatchAnalysis.CheckableTreeAndTypeAnalysis

### Inherited from MatchAnalysis.PropositionalLogic

### Inherited from MatchAnalysis.TreeMakers

### Inherited from MatchAnalysis.CodegenCore

### Inherited from MatchAnalysis.TypedSubstitution

### Inherited from MatchAnalysis.MatchMonadInterface

### Inherited from AnyRef

### Inherited from Any

### Inherited by implicit conversion any2stringadd from MatchAnalyzer to StringAdd

### Inherited by implicit conversion any2stringfmt from MatchAnalyzer to StringFormat

### Inherited by implicit conversion any2ArrowAssoc from MatchAnalyzer to ArrowAssoc[MatchAnalyzer]

### Inherited by implicit conversion any2Ensuring from MatchAnalyzer to Ensuring[MatchAnalyzer]

### Ungrouped