Packages

object typer extends (analyzer)#Typer

Source
Global.scala
Linear Supertypes
(analyzer)#Typer, (analyzer)#TyperContextErrors, (analyzer)#PatternTyper, (analyzer)#Tag, (analyzer)#Adaptation, (analyzer)#TyperDiagnostics, AnyRef, Any
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  1. typer
  2. Typer
  3. TyperContextErrors
  4. PatternTyper
  5. Tag
  6. Adaptation
  7. TyperDiagnostics
  8. AnyRef
  9. Any
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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. def adapt(tree: Global.Tree, mode: Mode, pt: Global.Type, original: Global.Tree = EmptyTree): Global.Tree

    Perform the following adaptations of expression, pattern or type tree wrt to given mode mode and given prototype pt: (-1) For expressions with annotated types, let AnnotationCheckers decide what to do (0) Convert expressions with constant types to literals (unless in interactive/scaladoc mode) (1) Resolve overloading, unless mode contains FUNmode (2) Apply parameterless functions (3) Apply polymorphic types to fresh instances of their type parameters and store these instances in context.undetparams, unless followed by explicit type application.

    Perform the following adaptations of expression, pattern or type tree wrt to given mode mode and given prototype pt: (-1) For expressions with annotated types, let AnnotationCheckers decide what to do (0) Convert expressions with constant types to literals (unless in interactive/scaladoc mode) (1) Resolve overloading, unless mode contains FUNmode (2) Apply parameterless functions (3) Apply polymorphic types to fresh instances of their type parameters and store these instances in context.undetparams, unless followed by explicit type application. (4) Do the following to unapplied methods used as values: (4.1) If the method has only implicit parameters pass implicit arguments (4.2) otherwise, if pt is a function type and method is not a constructor, convert to function by eta-expansion, (4.3) otherwise, if the method is nullary with a result type compatible to pt and it is not a constructor, apply it to () otherwise issue an error (5) Convert constructors in a pattern as follows: (5.1) If constructor refers to a case class factory, set tree's type to the unique instance of its primary constructor that is a subtype of the expected type. (5.2) If constructor refers to an extractor, convert to application of unapply or unapplySeq method.

    (6) Convert all other types to TypeTree nodes. (7) When in TYPEmode but not FUNmode or HKmode, check that types are fully parameterized (7.1) In HKmode, higher-kinded types are allowed, but they must have the expected kind-arity (8) When in both EXPRmode and FUNmode, add apply method calls to values of object type. (9) If there are undetermined type variables and not POLYmode, infer expression instance Then, if tree's type is not a subtype of expected type, try the following adaptations: (10) If the expected type is Byte, Short or Char, and the expression is an integer fitting in the range of that type, convert it to that type. (11) Widen numeric literals to their expected type, if necessary (12) When in mode EXPRmode, convert E to { E; () } if expected type is scala.Unit. (13) When in mode EXPRmode, apply AnnotationChecker conversion if expected type is annotated. (14) When in mode EXPRmode, do SAM conversion (15) When in mode EXPRmode, apply a view If all this fails, error

    Attributes
    protected
    Definition Classes
    Typer
  5. def adaptAfterOverloadResolution(tree: Global.Tree, mode: Mode, pt: Global.Type = WildcardType, original: Global.Tree = EmptyTree): Global.Tree
    Definition Classes
    Typer
  6. def adaptCase(cdef: Global.CaseDef, mode: Mode, tpe: Global.Type): Global.CaseDef
    Definition Classes
    Typer
  7. def adaptToArguments(qual: Global.Tree, name: Global.Name, args: List[Global.Tree], pt: Global.Type, reportAmbiguous: Boolean = true, saveErrors: Boolean = true): Global.Tree

    Try to apply an implicit conversion to qual to that it contains a method name which can be applied to arguments args with expected type pt.

    Try to apply an implicit conversion to qual to that it contains a method name which can be applied to arguments args with expected type pt. If pt is defined, there is a fallback to try again with pt = ?. This helps avoiding propagating result information too far and solves #1756. If no conversion is found, return qual unchanged.

    Definition Classes
    Typer
  8. def adaptToMember(qual: Global.Tree, searchTemplate: Global.Type, reportAmbiguous: Boolean = true, saveErrors: Boolean = true): Global.Tree
    Definition Classes
    Typer
  9. def adaptToMemberWithArgs(tree: Global.Tree, qual: Global.Tree, name: Global.Name, mode: Mode, reportAmbiguous: Boolean = true, saveErrors: Boolean = true): Global.Tree

    Try to apply an implicit conversion to qual so that it contains a method name.

    Try to apply an implicit conversion to qual so that it contains a method name. If that's ambiguous try taking arguments into account using adaptToArguments.

    Definition Classes
    Typer
  10. def adaptToName(qual: Global.Tree, name: Global.Name): Global.Tree

    Try to apply an implicit conversion to qual to that it contains a member name of arbitrary type.

    Try to apply an implicit conversion to qual to that it contains a member name of arbitrary type. If no conversion is found, return qual unchanged.

    Definition Classes
    Typer
  11. def applyImplicitArgs(fun: Global.Tree): Global.Tree

    Find implicit arguments and pass them to given tree.

    Find implicit arguments and pass them to given tree.

    Definition Classes
    Typer
  12. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  13. def atOwner(tree: Global.Tree, owner: Global.Symbol): (analyzer)#Typer
    Definition Classes
    Typer
  14. def atOwner(owner: Global.Symbol): (analyzer)#Typer
    Definition Classes
    Typer
  15. def callToCompanionConstr(context: (analyzer)#Context, calledFun: Global.Symbol): Boolean
    Definition Classes
    Typer
  16. def canAdaptConstantTypeToLiteral: Boolean

    Overridden to false in scaladoc and/or interactive.

    Overridden to false in scaladoc and/or interactive.

    Definition Classes
    Typer
  17. def canTranslateEmptyListToNil: Boolean
    Definition Classes
    Typer
  18. def checkClassType(tpt: Global.Tree): Boolean

    Check that tpt refers to a non-refinement class type

    Check that tpt refers to a non-refinement class type

    Definition Classes
    Typer
  19. def checkExistentialsFeature(pos: Global.Position, tpe: Global.Type, prefix: String): AnyVal
    Definition Classes
    Typer
  20. def checkFeature(pos: Global.Position, featureTrait: Global.Symbol, construct: ⇒ String = "", immediate: Boolean = false): Boolean

    Check whether feature given by featureTrait is enabled.

    Check whether feature given by featureTrait is enabled. If it is not, issue an error or a warning depending on whether the feature is required.

    construct

    A string expression that is substituted for "#" in the feature description string

    immediate

    When set, feature check is run immediately, otherwise it is run at the end of the typechecking run for the enclosing unit. This is done to avoid potential cyclic reference errors by implicits that are forced too early.

    returns

    if feature check is run immediately: true if feature is enabled, false otherwise if feature check is delayed or suppressed because we are past typer: true

    Definition Classes
    Typer
  21. def checkFinitary(classinfo: Global.ClassInfoType): Unit
    Definition Classes
    Typer
  22. def checkMethodStructuralCompatible(ddef: Global.DefDef): Unit

    Check if a structurally defined method violates implementation restrictions.

    Check if a structurally defined method violates implementation restrictions. A method cannot be called if it is a non-private member of a refinement type and if its parameter's types are any of:

    • the self-type of the refinement
    • a type member of the refinement
    • an abstract type declared outside of the refinement.
    • an instance of a value class Furthermore, the result type may not be a value class either
    Definition Classes
    Typer
  23. def checkNonCyclic(defn: Global.Tree, tpt: Global.Tree): Unit
    Definition Classes
    Typer
  24. def checkNonCyclic(sym: Global.Symbol): Unit
    Definition Classes
    Typer
  25. def checkNonCyclic(pos: Global.Position, tp: Global.Type, lockedSym: Global.Symbol): Boolean
    Definition Classes
    Typer
  26. def checkNonCyclic(pos: Global.Position, tp: Global.Type): Boolean

    Check that type tp is not a subtype of itself.

    Check that type tp is not a subtype of itself.

    Definition Classes
    Typer
  27. def checkParamsConvertible(tree: Global.Tree, tpe0: Global.Type): Unit
    Definition Classes
    Typer
  28. def checkStablePrefixClassType(tpt: Global.Tree): Boolean

    Check that tpt refers to a class type with a stable prefix.

    Check that tpt refers to a class type with a stable prefix.

    Definition Classes
    Typer
  29. def checkValidAdaptation(t: Global.Tree, args: List[Global.Tree]): Boolean
    Definition Classes
    Adaptation
  30. def clone(): AnyRef
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )
  31. def computeMacroDefType(ddef: Global.DefDef, pt: Global.Type): Global.Type
    Definition Classes
    Typer
  32. def computeParamAliases(clazz: Global.Symbol, vparamss: List[List[Global.ValDef]], rhs: Global.Tree): Unit

    Enter all aliases of local parameter accessors.

    Enter all aliases of local parameter accessors.

    Definition Classes
    Typer
  33. def computeType(tree: Global.Tree, pt: Global.Type): Global.Type
    Definition Classes
    Typer
  34. final def constrTyperIf(inConstr: Boolean): (analyzer)#Typer

    The typer for an expression, depending on where we are.

    The typer for an expression, depending on where we are. If we are before a superclass call, this is a typer over a constructor context; otherwise it is the current typer.

    Definition Classes
    Typer
  35. var context: (analyzer)#Context
    Definition Classes
    Typer
  36. def context1: (analyzer)#Context
    Definition Classes
    Typer
  37. def cyclicReferenceMessage(sym: Global.Symbol, tree: Global.Tree): Option[String]

    Returns Some(msg) if the given tree is untyped apparently due to a cyclic reference, and None otherwise.

    Returns Some(msg) if the given tree is untyped apparently due to a cyclic reference, and None otherwise.

    Definition Classes
    TyperDiagnostics
  38. def doTypedApply(tree: Global.Tree, fun0: Global.Tree, args: List[Global.Tree], mode: Mode, pt: Global.Type): Global.Tree
    Definition Classes
    Typer
  39. def doTypedUnapply(tree: Global.Tree, funOrig: Global.Tree, funOverloadResolved: Global.Tree, args: List[Global.Tree], mode: Mode, pt: Global.Type): Global.Tree
    Definition Classes
    PatternTyper
  40. def dropExistential(tp: Global.Type): Global.Type
    Definition Classes
    Typer
  41. def enterSym(txt: (analyzer)#Context, tree: Global.Tree): (analyzer)#Context
    Attributes
    protected
    Definition Classes
    Typer
  42. def enterSyms(txt: (analyzer)#Context, trees: List[Global.Tree]): Unit
    Attributes
    protected
    Definition Classes
    Typer
  43. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  44. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  45. def extractorForUncheckedType(pos: Global.Position, pt: Global.Type): Global.Tree
    Definition Classes
    PatternTyper
  46. def finalize(): Unit
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  47. def finishMethodSynthesis(templ: Global.Template, clazz: Global.Symbol, context: (analyzer)#Context): Global.Template

    In order to override this in the TreeCheckers Typer so synthetics aren't re-added all the time, it is exposed here the module/class typing methods go through it.

    In order to override this in the TreeCheckers Typer so synthetics aren't re-added all the time, it is exposed here the module/class typing methods go through it. ...but it turns out it's also the ideal spot for namer/typer coordination for the tricky method synthesis scenarios, so we'll make it that.

    Attributes
    protected
    Definition Classes
    Typer
  48. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  49. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  50. val infer: (analyzer)#Inferencer
    Definition Classes
    Typer
  51. def inferSamType(fun: Global.Tree, pt: Global.Type, mode: Mode): Global.SAMFunction

    Synthesize and type check the implementation of a type with a Single Abstract Method.

    Synthesize and type check the implementation of a type with a Single Abstract Method.

    Based on a type checked Function node { (p1: T1, ..., pN: TN) => body } : S where S is the expected type that defines a single abstract method (call it apply for the example), that has signature (p1: T1', ..., pN: TN'): T', synthesize the instantiation of the following anonymous class

    new S { def apply$body(p1: T1, ..., pN: TN): T = body def apply(p1: T1', ..., pN: TN'): T' = apply$body(p1,..., pN) }

    The apply method is identified by the argument sam; S corresponds to the argument pt, If pt is not fully defined, we derive samClassTpFullyDefined by inferring any unknown type parameters.

    The types T1' ... TN' and T' are derived from the method signature of the sam method, as seen from the fully defined samClassTpFullyDefined.

    The function's body is put in a (static) method in the class definition to enforce scoping. S's members should not be in scope in body. (Putting it in the block outside the class runs into implementation problems described below)

    The restriction on implicit arguments (neither S's constructor, nor sam may take an implicit argument list), is to keep the implementation of type inference (the computation of samClassTpFullyDefined) simple.

    Impl notes:

    • fun has a FunctionType, but the expected type pt is some SAM type -- let's remedy that
    • fun is fully attributed, so we'll have to wrangle some symbols into shape (owner change, vparam syms)
    • after experimentation, it works best to type check function literals fully first and then adapt to a sam type, as opposed to a sam-specific code paths earlier on in type checking (in typedFunction). For one, we want to emit the same bytecode regardless of whether the expected function type is a built-in FunctionN or some SAM type
    Definition Classes
    Typer
  52. def inferView(tree: Global.Tree, from: Global.Type, to: Global.Type, reportAmbiguous: Boolean = true, saveErrors: Boolean = true): Global.Tree

    Infer an implicit conversion (view) between two types.

    Infer an implicit conversion (view) between two types.

    tree

    The tree which needs to be converted.

    from

    The source type of the conversion

    to

    The target type of the conversion

    reportAmbiguous

    Should ambiguous implicit errors be reported? False iff we search for a view to find out whether one type is coercible to another.

    saveErrors

    Should ambiguous and divergent implicit errors that were buffered during the inference of a view be put into the original buffer. False iff we don't care about them.

    Definition Classes
    Typer
  53. def instantiate(tree: Global.Tree, mode: Mode, pt: Global.Type): Global.Tree
    Definition Classes
    Typer
  54. def instantiateExpectingUnit(tree: Global.Tree, mode: Mode): Global.Tree

    If the expected type is Unit: try instantiating type arguments with expected type Unit, but if that fails, try again with pt = WildcardType and discard the expression.

    If the expected type is Unit: try instantiating type arguments with expected type Unit, but if that fails, try again with pt = WildcardType and discard the expression.

    Definition Classes
    Typer
  55. def instantiatePossiblyExpectingUnit(tree: Global.Tree, mode: Mode, pt: Global.Type): Global.Tree
    Definition Classes
    Typer
  56. def isCapturedExistential(sym: Global.Symbol): Boolean
    Definition Classes
    Typer
  57. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  58. def isNamedApplyBlock(tree: Global.Tree): Boolean

    Is tree a block created by a named application?

    Is tree a block created by a named application?

    Definition Classes
    Typer
  59. def isReferencedFrom(ctx: (analyzer)#Context, sym: Global.Symbol): Boolean
    Definition Classes
    Typer
  60. def isStale(sym: Global.Symbol): Boolean

    A symbol is stale if it is toplevel, to be loaded from a classfile, and the classfile is produced from a sourcefile which is compiled in the current run.

    A symbol is stale if it is toplevel, to be loaded from a classfile, and the classfile is produced from a sourcefile which is compiled in the current run.

    Definition Classes
    Typer
  61. def labelTyper(ldef: Global.LabelDef): (analyzer)#Typer

    The typer for a label definition.

    The typer for a label definition. If this is part of a template we first have to enter the label definition.

    Definition Classes
    Typer
  62. final def lookupTransformed(tree: Global.Tree): Option[Global.Tree]
    Definition Classes
    Typer
  63. def macroImplementationNotFoundMessage(name: Global.Name): String

    This file will be the death of me.

    This file will be the death of me.

    Attributes
    protected
    Definition Classes
    TyperContextErrors
  64. def member(qual: Global.Tree, name: Global.Name): Global.Symbol

    The member with given name of given qualifier tree

    The member with given name of given qualifier tree

    Definition Classes
    Typer
  65. def missingSelectErrorTree(tree: Global.Tree, qual: Global.Tree, name: Global.Name): Global.Tree
    Definition Classes
    Typer
  66. def namer: (analyzer)#Namer
    Definition Classes
    Typer
  67. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  68. def needsInstantiation(tparams: List[Global.Symbol], formals: List[Global.Type], args: List[Global.Tree]): Boolean

    Does function need to be instantiated, because a missing parameter in an argument closure overlaps with an uninstantiated formal?

    Does function need to be instantiated, because a missing parameter in an argument closure overlaps with an uninstantiated formal?

    Definition Classes
    Typer
  69. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  70. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  71. def packCaptured(tpe: Global.Type): Global.Type
    Definition Classes
    Typer
  72. def packSymbols(hidden: List[Global.Symbol], tp: Global.Type): Global.Type

    Compute an existential type from raw hidden symbols syms and type tp

    Compute an existential type from raw hidden symbols syms and type tp

    Definition Classes
    Typer
  73. def packedType(tree: Global.Tree, owner: Global.Symbol): Global.Type

    convert local symbols and skolems to existentials

    convert local symbols and skolems to existentials

    Definition Classes
    Typer
  74. def packedTypes(trees: List[Global.Tree]): List[Global.Type]
    Definition Classes
    Typer
  75. def permanentlyHiddenWarning(pos: Global.Position, hidden: Global.Name, defn: Global.Symbol): Unit
    Definition Classes
    TyperDiagnostics
  76. def phasedAppliedType(sym: Global.Symbol, args: List[Global.Type]): Global.Type
    Definition Classes
    Typer
  77. def qualifyingClass(tree: Global.Tree, qual: Global.Name, packageOK: Boolean): Global.Symbol

    The qualifying class of a this or super with prefix qual.

    The qualifying class of a this or super with prefix qual. packageOk is equal false when qualifying class symbol

    Definition Classes
    Typer
  78. def reallyExists(sym: Global.Symbol): Boolean

    Is symbol defined and not stale?

    Is symbol defined and not stale?

    Definition Classes
    Typer
  79. def reenterTypeParams(tparams: List[Global.TypeDef]): List[Global.Symbol]
    Definition Classes
    Typer
  80. def reenterValueParams(vparamss: List[List[Global.ValDef]]): Unit
    Definition Classes
    Typer
  81. def reportTypeError(context0: (analyzer)#Context, pos: Global.Position, ex: Global.TypeError): Unit

    Report a type error.

    Report a type error.

    pos

    The position where to report the error

    ex

    The exception that caused the error

    Definition Classes
    TyperDiagnostics
  82. def resolveClassTag(pos: Global.Position, tp: Global.Type, allowMaterialization: Boolean = true): Global.Tree

    Finds in scope or materializes a ClassTag.

    Finds in scope or materializes a ClassTag. Should be used instead of ClassManifest every time compiler needs to persist an erasure.

    Once upon a time, we had an ErasureTag which was to ClassTag the same that WeakTypeTag is for TypeTag. However we found out that we don't really need this concept, so it got removed.

    pos

    Position for error reporting. Please, provide meaningful value.

    tp

    Type we're looking a ClassTag for, e.g. resolveClassTag(pos, IntTpe) will look for ClassTag[Int].

    allowMaterialization

    If true (default) then the resolver is allowed to launch materialization macros when there's no class tag in scope. If false then materialization macros are prohibited from running.

    returns

    Tree that represents an scala.reflect.ClassTag for tp if everything is okay. EmptyTree if the result contains unresolved (i.e. not spliced) type parameters and abstract type members. EmptyTree if allowMaterialization is false, and there is no class tag in scope.

    Definition Classes
    Tag
  83. def resolveTypeTag(pos: Global.Position, pre: Global.Type, tp: Global.Type, concrete: Boolean, allowMaterialization: Boolean = true): Global.Tree

    Finds in scope or materializes an WeakTypeTag (if concrete is false) or a TypeTag (if concrete is true).

    Finds in scope or materializes an WeakTypeTag (if concrete is false) or a TypeTag (if concrete is true).

    pos

    Position for error reporting. Please, provide meaningful value.

    pre

    Prefix that represents a universe this type tag will be bound to. If pre is set to NoType, then any type tag in scope will do, regardless of its affiliation. If pre is set to NoType, and tag resolution involves materialization, then mkRuntimeUniverseRef will be used.

    tp

    Type we're looking a TypeTag for, e.g. resolveTypeTag(pos, mkRuntimeUniverseRef, IntTpe, false) will look for scala.reflect.runtime.universe.TypeTag[Int].

    concrete

    If true then the result must not contain unresolved (i.e. not spliced) type parameters and abstract type members. If false then the function will always succeed (abstract types will be reified as free types).

    allowMaterialization

    If true (default) then the resolver is allowed to launch materialization macros when there's no type tag in scope. If false then materialization macros are prohibited from running.

    returns

    Tree that represents a scala.reflect.TypeTag for tp if everything is okay. EmptyTree if concrete is true and the result contains unresolved (i.e. not spliced) type parameters and abstract type members. EmptyTree if allowMaterialization is false, and there is no array tag in scope.

    Definition Classes
    Tag
  84. def rewrappingWrapperTrees(f: (Global.Tree) ⇒ List[Global.Tree]): (Global.Tree) ⇒ List[Global.Tree]

    For flatMapping a list of trees when you want the DocDefs and Annotated to be transparent.

    For flatMapping a list of trees when you want the DocDefs and Annotated to be transparent.

    Definition Classes
    Typer
  85. val runDefinitions: reflect.internal.Definitions.definitions.RunDefinitions
    Definition Classes
    Typer
  86. def samToFunctionType(tp: Global.Type, sam: Global.Symbol = NoSymbol): Global.Type

    Convert a SAM type to the corresponding FunctionType, extrapolating BoundedWildcardTypes in the process (no type precision is lost by the extrapolation, but this facilitates dealing with the types arising from Java's use-site variance).

    Convert a SAM type to the corresponding FunctionType, extrapolating BoundedWildcardTypes in the process (no type precision is lost by the extrapolation, but this facilitates dealing with the types arising from Java's use-site variance).

    Definition Classes
    Typer
  87. def silent[T](op: ((analyzer)#Typer) ⇒ T, reportAmbiguousErrors: Boolean = context.ambiguousErrors, newtree: Global.Tree = context.tree): (analyzer)#SilentResult[T]
    Definition Classes
    Typer
  88. def stabilize(tree: Global.Tree, pre: Global.Type, mode: Mode, pt: Global.Type): Global.Tree

    Post-process an identifier or selection node, performing the following:

    Post-process an identifier or selection node, performing the following:

    1. Check that non-function pattern expressions are stable (ignoring volatility concerns -- scala/bug#6815) (and narrow the type of modules: a module reference in a pattern has type Foo.type, not "object Foo") 2. Check that packages and static modules are not used as values 3. Turn tree type into stable type if possible and required by context. 4. Give getClass calls a more precise type based on the type of the target of the call.
    Attributes
    protected
    Definition Classes
    Typer
  89. def stabilizeFun(tree: Global.Tree, mode: Mode, pt: Global.Type): Global.Tree
    Definition Classes
    Typer
  90. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  91. def synthesizePartialFunction(paramName: Global.TermName, paramPos: Global.Position, paramSynthetic: Boolean, tree: Global.Tree, mode: Mode, pt: Global.Type): Global.Tree

    synthesize and type check a PartialFunction implementation based on the match in tree

    synthesize and type check a PartialFunction implementation based on the match in tree

    param => sel match { cases } becomes:

    new AbstractPartialFunction[$argTp, $matchResTp] { def applyOrElse[A1 <: $argTp, B1 >: $matchResTp]($param: A1, default: A1 => B1): B1 = $selector match { $cases } def isDefinedAt(x: $argTp): Boolean = $selector match { $casesTrue } }

    TODO: it would be nicer to generate the tree specified above at once and type it as a whole, there are two gotchas:

    • matchResTp may not be known until we've typed the match (can only use resTp when it's fully defined),
      • if we typed the match in isolation first, you'd know its result type, but would have to re-jig the owner structure
      • could we use a type variable for matchResTp and backpatch it?
    • occurrences of this in cases or sel must resolve to the this of the class originally enclosing the match, not of the anonymous partial function subclass

    an alternative TODO: add partial function AST node or equivalent and get rid of this synthesis --> do everything in uncurry (or later) however, note that pattern matching codegen is designed to run *before* uncurry

    Definition Classes
    Typer
  92. def toString(): String
    Definition Classes
    AnyRef → Any
  93. final def transformedOr(tree: Global.Tree, op: ⇒ Global.Tree): Global.Tree
    Definition Classes
    Typer
    Annotations
    @inline()
  94. final def transformedOrTyped(tree: Global.Tree, mode: Mode, pt: Global.Type): Global.Tree
    Definition Classes
    Typer
  95. def typed(tree: Global.Tree, mode: Mode): Global.Tree
    Definition Classes
    Typer
  96. def typed(tree: Global.Tree, pt: Global.Type): Global.Tree

    Types expression tree with given prototype pt.

    Types expression tree with given prototype pt.

    Definition Classes
    Typer
  97. def typed(tree: Global.Tree): Global.Tree

    Types expression or definition tree.

    Types expression or definition tree.

    Definition Classes
    Typer
  98. def typed(tree: Global.Tree, mode: Mode, pt: Global.Type): Global.Tree
    Definition Classes
    Typer
  99. def typed1(tree: Global.Tree, mode: Mode, pt: Global.Type): Global.Tree
    Definition Classes
    Typer
  100. def typedAnnotation(ann: Global.Tree, mode: Mode = EXPRmode): Global.AnnotationInfo

    Convert an annotation constructor call into an AnnotationInfo.

    Convert an annotation constructor call into an AnnotationInfo.

    Definition Classes
    Typer
  101. def typedArg(arg: Global.Tree, mode: Mode, newmode: Mode, pt: Global.Type): Global.Tree
    Definition Classes
    Typer
  102. def typedArgs(args: List[Global.Tree], mode: Mode): collection.immutable.List[Global.Tree]
    Definition Classes
    Typer
  103. def typedArgsForFormals(args: List[Global.Tree], formals: List[Global.Type], mode: Mode): List[Global.Tree]
    Definition Classes
    PatternTyper
  104. def typedBlock(block0: Global.Block, mode: Mode, pt: Global.Type): Global.Block
    Definition Classes
    Typer
  105. def typedByValueExpr(tree: Global.Tree, pt: Global.Type = WildcardType): Global.Tree
    Definition Classes
    Typer
  106. def typedCase(cdef: Global.CaseDef, pattpe: Global.Type, pt: Global.Type): Global.CaseDef
    Definition Classes
    Typer
  107. def typedCases(cases: List[Global.CaseDef], pattp: Global.Type, pt: Global.Type): List[Global.CaseDef]
    Definition Classes
    Typer
  108. def typedClassDef(cdef: Global.ClassDef): Global.Tree
    Definition Classes
    Typer
  109. def typedClassOf(tree: Global.Tree, tpt: Global.Tree, noGen: Boolean = false): Global.Tree
    Definition Classes
    Typer
  110. def typedConstructorPattern(fun0: Global.Tree, pt: Global.Type): Global.Tree
    Definition Classes
    PatternTyper
  111. def typedDefDef(ddef: Global.DefDef): Global.DefDef
    Definition Classes
    Typer
  112. def typedDocDef(docDef: Global.DocDef, mode: Mode, pt: Global.Type): Global.Tree
    Definition Classes
    Typer
  113. def typedExistentialTypeTree(tree: Global.ExistentialTypeTree, mode: Mode): Global.Tree
    Attributes
    protected
    Definition Classes
    Typer
  114. def typedHigherKindedType(tree: Global.Tree, mode: Mode): Global.Tree
    Definition Classes
    Typer
  115. def typedHigherKindedType(tree: Global.Tree, mode: Mode, pt: Global.Type): Global.Tree

    Types a higher-kinded type tree -- pt denotes the expected kind and must be one of Kind.WildCard and Kind.FromParams

    Types a higher-kinded type tree -- pt denotes the expected kind and must be one of Kind.WildCard and Kind.FromParams

    Definition Classes
    Typer
  116. def typedImport(imp: Global.Import): Global.Import
    Definition Classes
    Typer
  117. def typedInPattern(tree: Global.Typed, mode: Mode, pt: Global.Type): Global.Tree
    Attributes
    protected
    Definition Classes
    PatternTyper
  118. def typedLabelDef(ldef: Global.LabelDef): Global.LabelDef
    Definition Classes
    Typer
  119. def typedMatch(selector: Global.Tree, cases: List[Global.CaseDef], mode: Mode, pt: Global.Type, tree: Global.Tree = EmptyTree): Global.Match
    Definition Classes
    Typer
  120. def typedModifiers(mods: Global.Modifiers): Global.Modifiers

    Remove definition annotations from modifiers (they have been saved into the symbol's annotations in the type completer / namer)

    Remove definition annotations from modifiers (they have been saved into the symbol's annotations in the type completer / namer)

    However reification does need annotation definitions to proceed. Unfortunately, AnnotationInfo doesn't provide enough info to reify it in general case. The biggest problem is with the "atp: Type" field, which cannot be reified in some situations that involve locally defined annotations. See more about that in Reifiers.scala.

    That's why the original tree gets saved into original field of AnnotationInfo (happens elsewhere). The field doesn't get pickled/unpickled and exists only during a single compilation run. This simultaneously allows us to reify annotations and to preserve backward compatibility.

    Definition Classes
    Typer
  121. def typedModuleDef(mdef: Global.ModuleDef): Global.Tree
    Definition Classes
    Typer
  122. def typedOperator(tree: Global.Tree): Global.Tree

    Types function part of an application

    Types function part of an application

    Definition Classes
    Typer
  123. def typedParentTypes(templ: Global.Template): List[Global.Tree]
    Definition Classes
    Typer
  124. def typedPattern(tree: Global.Tree, pt: Global.Type): Global.Tree

    Types a pattern with prototype pt

    Types a pattern with prototype pt

    Definition Classes
    Typer
  125. def typedPos(pos: Global.Position)(tree: Global.Tree): Global.Tree
    Definition Classes
    Typer
  126. def typedPos(pos: Global.Position, mode: Mode, pt: Global.Type)(tree: Global.Tree): Global.Tree
    Definition Classes
    Typer
  127. def typedQualifier(tree: Global.Tree): Global.Tree
    Definition Classes
    Typer
  128. def typedQualifier(tree: Global.Tree, mode: Mode): Global.Tree

    Types qualifier tree of a select node.

    Types qualifier tree of a select node. E.g. is tree occurs in a context like tree.m.

    Definition Classes
    Typer
  129. def typedQualifier(tree: Global.Tree, mode: Mode, pt: Global.Type): Global.Tree

    Types qualifier tree of a select node.

    Types qualifier tree of a select node. E.g. is tree occurs in a context like tree.m.

    Definition Classes
    Typer
  130. def typedRefinement(templ: Global.Template): Unit
    Definition Classes
    Typer
  131. def typedStarInPattern(tree: Global.Tree, mode: Mode, pt: Global.Type): Global.Tree
    Attributes
    protected
    Definition Classes
    PatternTyper
  132. def typedStats(stats: List[Global.Tree], exprOwner: Global.Symbol, warnPure: Boolean = true): List[Global.Tree]
    Definition Classes
    Typer
  133. def typedTemplate(templ0: Global.Template, parents1: List[Global.Tree]): Global.Template

    Check that inner classes do not inherit from Annotation

    Check that inner classes do not inherit from Annotation

    Definition Classes
    Typer
  134. def typedType(tree: Global.Tree): Global.Tree

    Types a (fully parameterized) type tree

    Types a (fully parameterized) type tree

    Definition Classes
    Typer
  135. def typedType(tree: Global.Tree, mode: Mode): Global.Tree

    Types a (fully parameterized) type tree

    Types a (fully parameterized) type tree

    Definition Classes
    Typer
  136. def typedTypeApply(tree: Global.Tree, mode: Mode, fun: Global.Tree, args: List[Global.Tree]): Global.Tree
    Attributes
    protected
    Definition Classes
    Typer
  137. def typedTypeConstructor(tree: Global.Tree): Global.Tree
    Definition Classes
    Typer
  138. def typedTypeConstructor(tree: Global.Tree, mode: Mode): Global.Tree

    Types a type constructor tree used in a new or supertype

    Types a type constructor tree used in a new or supertype

    Definition Classes
    Typer
  139. def typedTypeDef(tdef: Global.TypeDef): Global.TypeDef
    Definition Classes
    Typer
  140. def typedValDef(vdef: Global.ValDef): Global.ValDef
    Definition Classes
    Typer
  141. final def typerWithCondLocalContext[T](c: ⇒ (analyzer)#Context)(cond: Boolean)(f: ((analyzer)#Typer) ⇒ T): T
    Definition Classes
    Typer
    Annotations
    @inline()
  142. final def typerWithLocalContext[T](c: (analyzer)#Context)(f: ((analyzer)#Typer) ⇒ T): T
    Definition Classes
    Typer
    Annotations
    @inline()
  143. def validateParentClasses(parents: List[Global.Tree], selfType: Global.Type): Unit

    Check that

    Check that

    • all parents are class types,
    • first parent class is not a mixin; following classes are mixins,
    • final classes are not inherited,

    - sealed classes are only inherited by classes which are nested within definition of base class, or that occur within same statement sequence,

    • self-type of current class is a subtype of self-type of each parent class.
    • no two parents define same symbol.
    Definition Classes
    Typer
  144. def viewExists(from: Global.Type, to: Global.Type): Boolean
    Definition Classes
    Typer
  145. def virtualizedMatch(match_: Global.Match, mode: Mode, pt: Global.Type): Global.Tree
    Definition Classes
    Typer
  146. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  147. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  148. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )
  149. def warnTypeParameterShadow(tparams: List[Global.TypeDef], sym: Global.Symbol): Unit
    Definition Classes
    TyperDiagnostics
  150. final def withCondConstrTyper[T](inConstr: Boolean)(f: ((analyzer)#Typer) ⇒ T): T
    Definition Classes
    Typer
    Annotations
    @inline()
  151. def wrapClassTagUnapply(uncheckedPattern: Global.Tree, classTagExtractor: Global.Tree, pt: Global.Type): Global.Tree
    Definition Classes
    PatternTyper
  152. object TyperErrorGen
    Definition Classes
    TyperContextErrors
  153. object checkDead
    Definition Classes
    TyperDiagnostics
  154. object checkUnused
    Definition Classes
    TyperDiagnostics
  155. object checkNoEscaping extends Global.TypeMap

    Check that type of given tree does not contain local or private components.

    Check that type of given tree does not contain local or private components.

    Definition Classes
    Typer
  156. object dyna
    Definition Classes
    Typer

Inherited from (analyzer)#Typer

Inherited from (analyzer)#TyperContextErrors

Inherited from (analyzer)#PatternTyper

Inherited from (analyzer)#Tag

Inherited from (analyzer)#Adaptation

Inherited from (analyzer)#TyperDiagnostics

Inherited from AnyRef

Inherited from Any

Ungrouped