Scala Compiler2.12.2-20170504-135222-21d12e9 < Back
 

# Packages

-  package root

  The Scala compiler and reflection APIs.

  The Scala compiler and reflection APIs.

  Definition Classes
    root
-  package scala
  Definition Classes
    root
-  package tools
  Definition Classes
    scala
-  package nsc
  Definition Classes
    tools
-  class Global extends SymbolTable with CompilationUnits with Plugins with PhaseAssembly with Trees with Printers with DocComments with Positions with Reporting with Parsing
  Definition Classes
    nsc
- AbstractTypeRef
- AbstractTypeSymbol
- AliasTypeRef
- AliasTypeSymbol
- Alternative
- Alternative
- AlternativeApi
- AlternativeExtractor
- Annotatable
- Annotated
- Annotated
- AnnotatedApi
- AnnotatedExtractor
- AnnotatedType
- AnnotatedType
- AnnotatedTypeApi
- AnnotatedTypeExtractor
- AnnotationApi
- AnnotationChecker
- AnnotationExtractor
- AnnotationFilter
- AnnotationInfo
- AnnotationInfo
- AntiPolyType
- AppliedTypeTree
- AppliedTypeTree
- AppliedTypeTreeApi
- AppliedTypeTreeExtractor
- AppliedTypeVar
- Apply
- Apply
- ApplyApi
- ApplyDynamic
- ApplyExtractor
- ApplyImplicitView
- ApplyToImplicitArgs
- ApproximateDependentMap
- ArgsTypeRef
- ArrayAnnotArg
- ArrayAnnotArg
- ArrayArgumentApi
- ArrayArgumentExtractor
- ArrayValue
- AsSeenFromMap
- Assign
- Assign
- AssignApi
- AssignExtractor
- AssignOrNamedArg
- AssignOrNamedArg
- AssignOrNamedArgApi
- AssignOrNamedArgExtractor
- AtBoundIdentifierAttachment
- Attachable
- BackquotedIdentifierAttachment
- BaseTypeSeq
- Bind
- Bind
- BindApi
- BindExtractor
- Block
- Block
- BlockApi
- BlockExtractor
- BooleanFlag
- BooleanFlag
- BoundedWildcardType
- BoundedWildcardType
- BoundedWildcardTypeApi
- BoundedWildcardTypeExtractor
- CannotHaveAttrs
- CaseDef
- CaseDef
- CaseDefApi
- CaseDefExtractor
- ChangeOwnerTraverser
- ClassDef
- ClassDef
- ClassDefApi
- ClassDefExtractor
- ClassInfoType
- ClassInfoType
- ClassInfoTypeApi
- ClassInfoTypeExtractor
- ClassMirror
- ClassSymbol
- ClassSymbolApi
- ClassUnwrapper
- ClassfileAnnotArg
- CodePrinter
- CollectTreeTraverser
- CollectTypeCollector
- CommonNames
- CommonOwnerMap
- CompactTreePrinter
- CompatApi
- CompatToken
- CompilationUnit
- CompilationUnitContextApi
- CompleteAnnotationInfo
- CompoundType
- CompoundType
- CompoundTypeApi
- CompoundTypeTree
- CompoundTypeTree
- CompoundTypeTreeApi
- CompoundTypeTreeExtractor
- CompoundTypeTreeOriginalAttachment
- ConsoleWriter
- Constant
- Constant
- ConstantApi
- ConstantExtractor
- ConstantType
- ConstantType
- ConstantTypeApi
- ConstantTypeExtractor
- ContainsCollector
- CyclicReference
- DefDef
- DefDef
- DefDefApi
- DefDefExtractor
- DefTree
- DefTreeApi
- DefaultPosAssigner
- DefinitionsApi
- DefinitionsClass
- DelambdafyTarget
- DocComment
- DocDef
- EmptyScope
- EmptyTree
- ErasedValueType
- ErasedValueType
- ErroneousAnnotation
- ErrorScope
- ErrorType
- ExistentialExtrapolation
- ExistentialType
- ExistentialType
- ExistentialTypeApi
- ExistentialTypeExtractor
- ExistentialTypeTree
- ExistentialTypeTree
- ExistentialTypeTreeApi
- ExistentialTypeTreeExtractor
- ExpansionLimitExceeded
- Expr
- Expr
- FieldMirror
- FilterTreeTraverser
- FilterTypeCollector
- FindTreeTraverser
- FindTypeCollector
- FixedMirrorTreeCreator
- FixedMirrorTypeCreator
- Flag
- FlagAgnosticCompleter
- FlagAssigningCompleter
- FlagOps
- FlagValues
- ForEachTypeTraverser
- ForeachPartialTreeTraverser
- ForeachTreeTraverser
- FreeSymbol
- FreeTermSymbol
- FreeTermSymbolApi
- FreeTypeSymbol
- FreeTypeSymbolApi
- FreshNameExtractor
- Function
- Function
- FunctionApi
- FunctionExtractor
- GenPolyType
- GenericApply
- GenericApplyApi
- GlobalMirror
- GlobalPhase
- GlobalPlatform
- HKTypeVar
- Ident
- Ident
- IdentApi
- IdentExtractor
- If
- If
- IfApi
- IfExtractor
- ImplDef
- ImplDefApi
- Import
- Import
- ImportApi
- ImportExtractor
- ImportSelector
- ImportSelector
- ImportSelectorApi
- ImportSelectorExtractor
- ImportType
- ImportableAttachment
- Importer
- InfoTransformer
- InjectDerivedValue
- InlineAnnotatedAttachment
- InlineCallsiteAttachment
- InstanceMirror
- InstantiateDependentMap
- InternalApi
- InternalTreeCopierOps
- JavaArgumentApi
- JavaKeywords
- JavaMethodType
- KeepOnlyTypeConstraints
- Keywords
- Kind
- Kind
- KindErrors
- LabelDef
- LabelDef
- LabelDefApi
- LabelDefExtractor
- LazyAnnotationInfo
- LazyPolyType
- LazyTreeCopier
- LazyType
- Liftable
- Literal
- Literal
- LiteralAnnotArg
- LiteralAnnotArg
- LiteralApi
- LiteralArgumentApi
- LiteralArgumentExtractor
- LiteralExtractor
- Locator
- LookupAmbiguous
- LookupInaccessible
- LookupNotFound
- LookupSucceeded
- MacroCompatApi
- MacroInternalApi
- MalformedType
- MappedBaseTypeSeq
- Match
- Match
- MatchApi
- MatchExtractor
- MemberDef
- MemberDefApi
- MemberScopeApi
- MethodMirror
- MethodSymbol
- MethodSymbolApi
- MethodType
- MethodType
- MethodTypeApi
- MethodTypeExtractor
- Mirror
- MissingAliasControl
- MissingTypeControl
- Modifiers
- Modifiers
- ModifiersApi
- ModifiersExtractor
- ModuleClassSymbol
- ModuleDef
- ModuleDef
- ModuleDefApi
- ModuleDefExtractor
- ModuleMirror
- ModuleSymbol
- ModuleSymbolApi
- ModuleTypeRef
- Name
- NameApi
- NameLookup
- NameOps
- NameTree
- NameTreeApi
- NamedType
- NamesApi
- NestedAnnotArg
- NestedAnnotArg
- NestedArgumentApi
- NestedArgumentExtractor
- New
- New
- NewApi
- NewExtractor
- NoArgsTypeRef
- NoCommonType
- NoCompilationUnit
- NoInlineCallsiteAttachment
- NoPrefix
- NoSymbol
- NoType
- NonClassTypeRef
- NullaryMethodType
- NullaryMethodType
- NullaryMethodTypeApi
- NullaryMethodTypeExtractor
- OuterArgCanBeElided
- OverloadedType
- PackageClassInfoType
- PackageClassSymbol
- PackageDef
- PackageDef
- PackageDefApi
- PackageDefExtractor
- PackageObjectClassSymbol
- PackageTypeRef
- Parens
- PerRunParsing
- PerRunReporting
- PerRunReportingBase
- PlainAttachment
- PolyType
- PolyType
- PolyTypeApi
- PolyTypeExtractor
- PosAssigner
- PostfixSelect
- ProperTypeKind
- Quasiquote
- Range
- RawTreePrinter
- RecoverableCyclicReference
- RefTree
- RefTree
- RefTreeApi
- RefTreeExtractor
- ReferenceToBoxed
- ReferenceToBoxed
- ReferenceToBoxedApi
- ReferenceToBoxedExtractor
- RefinedType
- RefinedType
- RefinedType0
- RefinedTypeApi
- RefinedTypeExtractor
- RefinementClassSymbol
- RefinementTypeRef
- ReflectiveMirror
- ReificationSupportApi
- ReificationSupportImpl
- RepeatedType
- Return
- Return
- ReturnApi
- ReturnExtractor
- RewrappingTypeProxy
- RootSymbol
- Roots
- RootsBase
- Run
- RunContextApi
- RunParsing
- RunReporting
- RuntimeClassApi
- RuntimeMirror
- SAMFunction
- ScalaSigBytes
- Scope
- Scope
- ScopeApi
- ScopeEntry
- Select
- Select
- SelectApi
- SelectExtractor
- SelectFromArray
- SelectFromTypeTree
- SelectFromTypeTree
- SelectFromTypeTreeApi
- SelectFromTypeTreeExtractor
- SimpleTypeProxy
- SingleType
- SingleType
- SingleTypeApi
- SingleTypeExtractor
- SingletonType
- SingletonTypeApi
- SingletonTypeTree
- SingletonTypeTree
- SingletonTypeTreeApi
- SingletonTypeTreeExtractor
- StandardImporter
- StandardLiftableInstances
- StandardTypes
- StandardUnliftableInstances
- Star
- Star
- StarApi
- StarExtractor
- StaticallyAnnotatedType
- StrictTreeCopier
- StubClassSymbol
- StubSymbol
- StubTermSymbol
- SubType
- SubTypePair
- SubpatternsAttachment
- SubstMap
- SubstSymMap
- SubstThisMap
- SubstTypeMap
- SubstWildcardMap
- Super
- Super
- SuperApi
- SuperExtractor
- SuperType
- SuperType
- SuperTypeApi
- SuperTypeExtractor
- SymLoader
- SymTree
- SymTreeApi
- Symbol
- SymbolApi
- SymbolContextApiImpl
- SymbolNames
- SymbolOps
- SymbolTableInternal
- Template
- Template
- TemplateApi
- TemplateExtractor
- TemplateMirror
- TermName
- TermName
- TermNameApi
- TermNameExtractor
- TermNames
- TermNamesApi
- TermSymbol
- TermSymbolApi
- TermTree
- TermTreeApi
- This
- This
- ThisApi
- ThisExtractor
- ThisSubstituter
- ThisType
- ThisType
- ThisTypeApi
- ThisTypeExtractor
- Throw
- Throw
- ThrowApi
- ThrowExtractor
- ThrownException
- Transformer
- Traverser
- Tree
- TreeApi
- TreeContextApiImpl
- TreeCopier
- TreeCopierOps
- TreeGen
- TreePrinter
- TreeReplacer
- TreeStackTraverser
- TreeSubstituter
- TreeSymSubstTraverser
- TreeSymSubstituter
- TreeTypeSubstituter
- Try
- Try
- TryApi
- TryExtractor
- TypTree
- TypTreeApi
- Type
- TypeApi
- TypeApiImpl
- TypeApply
- TypeApply
- TypeApplyApi
- TypeApplyExtractor
- TypeBounds
- TypeBounds
- TypeBoundsApi
- TypeBoundsExtractor
- TypeBoundsTree
- TypeBoundsTree
- TypeBoundsTreeApi
- TypeBoundsTreeExtractor
- TypeCollector
- TypeConKind
- TypeConstraint
- TypeDef
- TypeDef
- TypeDefApi
- TypeDefExtractor
- TypeError
- TypeMap
- TypeMapTreeSubstituter
- TypeName
- TypeName
- TypeNameApi
- TypeNameExtractor
- TypeNames
- TypeNamesApi
- TypeParamVarargsAttachment
- TypeRef
- TypeRef
- TypeRefApi
- TypeRefExtractor
- TypeSkolem
- TypeSymbol
- TypeSymbolApi
- TypeTag
- TypeTag
- TypeTraverser
- TypeTraverserWithResult
- TypeTree
- TypeTree
- TypeTreeApi
- TypeTreeExtractor
- TypeTreeWithDeferredRefCheck
- TypeUnwrapper
- TypeVar
- TypeVar
- Typed
- Typed
- TypedApi
- TypedExtractor
- TypedLocator
- UnApply
- UnApply
- UnApplyApi
- UnApplyExtractor
- UnderConstructionTransformer
- UndoLog
- UniqueConstantType
- UniqueErasedValueType
- UniqueSingleType
- UniqueSuperType
- UniqueThisType
- UniqueType
- UniqueTypeBounds
- Unliftable
- UntouchableTypeVar
- UseCase
- UseInvokeSpecial
- ValDef
- ValDef
- ValDefApi
- ValDefExtractor
- ValOrDefDef
- ValOrDefDef
- ValOrDefDefApi
- ValidateException
- ValidatingPosAssigner
- ValueClassDefinitions
- VarianceValidator
- WeakTypeTag
- WeakTypeTag
- WildcardType
- abstractTypesToBounds
- adaptToNewRunMap
- cleanup
- constfold
- constructors
- definitions
- delambdafy
- dropIllegalStarTypes
- dropSingletonType
- erasure
- explicitOuter
- extensionMethods
- fields
- flatten
- gen
- genBCode
- icodes
- inferKind
- lambdaLift
- mixer
- nme
- noPrint
- noSelfType
- nodePrinters
- noopTransformer
- overridingPairs
- patmat
- pendingSuperCall
- perRunCaches
- pickler
- postErasure
- refChecks
- resetPos
- scalaPrimitives
- specializeTypes
- statistics
- superAccessors
- tailCalls
- terminal
- tpnme
- traceSymbols
- treeBrowsers
- treeChecker
- treeInfo
- typeDebug
- typeDeconstruct
- typer
- uncurry
- unwrapToClass
- unwrapToStableClass
- unwrapWrapperTypes
- wildcardExtrapolation

o

scala.tools.nsc.Global

# erasure 

###

#### object erasure extends Erasure

Definition Classes
  Global → Transforms
Source
  Global.scala

Linear Supertypes
Erasure, TypeAdaptingTransformer, TypingTransformers, Analyzer, AnalyzerPlugins, StdAttachments, ContextErrors, TypeDiagnostics, NamesDefaults, Macros, Helpers, Traces, MacroRuntimes, JavaReflectionRuntimes, Unapplies, SyntheticMethods, TreeDSL, EtaExpansion, Implicits, Infer, Checkable, Typers, PatternTypers, TypersTracking, Tags, Adaptations, Namers, MethodSynthesis, Contexts, Erasure, InfoTransform, Transform, SubComponent, AnyRef, Any
Content Hierarchy
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Ordering

1. Alphabetic
2. By Inheritance

Inherited

1. erasure
2. Erasure
3. TypeAdaptingTransformer
4. TypingTransformers
5. Analyzer
6. AnalyzerPlugins
7. StdAttachments
8. ContextErrors
9. TypeDiagnostics
10. NamesDefaults
11. Macros
12. Helpers
13. Traces
14. MacroRuntimes
15. JavaReflectionRuntimes
16. Unapplies
17. SyntheticMethods
18. TreeDSL
19. EtaExpansion
20. Implicits
21. Infer
22. Checkable
23. Typers
24. PatternTypers
25. TypersTracking
26. Tags
27. Adaptations
28. Namers
29. MethodSynthesis
30. Contexts
31. Erasure
32. InfoTransform
33. Transform
34. SubComponent
35. AnyRef
36. Any

1. Hide All
2. Show All

Visibility

1. Public
2. All

### Type Members

1.  trait JavaReflectionResolvers extends AnyRef
   Definition Classes
     JavaReflectionRuntimes
2.  class MacroRuntimeResolver extends tools.nsc.typechecker.Analyzer.JavaReflectionResolvers
   Definition Classes
     MacroRuntimes
3.  abstract class ErasureMap extends reflect.internal.SymbolTable.TypeMap
   Definition Classes
     Erasure
4.  type ImportType = Global.ImportType
   Definition Classes
     Contexts
5.  class JavaErasureMap extends ErasureMap
   Definition Classes
     Erasure
6.  type MacroContext = UnaffiliatedMacroContext { val universe: scala.tools.nsc.Global.erasure.global.type }
   Definition Classes
     StdAttachments
7.  type MacroRuntime = (MacroArgs) ⇒ Any

   Abstracts away resolution of macro runtimes.

   Abstracts away resolution of macro runtimes.

   Definition Classes
     MacroRuntimes
8.  class ScalaErasureMap extends ErasureMap
   Definition Classes
     Erasure
9.  type UnaffiliatedMacroContext = reflect.macros.contexts.Context

   Carries information necessary to expand the host tree.

   Carries information necessary to expand the host tree. At times we need to store this info, because macro expansion can be delayed until its targs are inferred. After a macro application has been successfully expanded, this attachment is destroyed.

   Definition Classes
     StdAttachments
10.  abstract class StdPhase extends GlobalPhase

    A standard phase template

    A standard phase template

    Definition Classes
      SubComponent
11.  class ComputeBridges extends AnyRef
    Definition Classes
      Erasure
12.  class Eraser extends Typer

    The modifier typer which retypes with erased types.

    The modifier typer which retypes with erased types.

    Definition Classes
      Erasure
13.  class ErasureTransformer extends Global.Transformer

    The erasure transformer

    The erasure transformer

    Definition Classes
      Erasure
14.  class UnknownSig extends Exception
    Definition Classes
      Erasure
15.  class Phase extends InfoTransform.Phase
    Definition Classes
      InfoTransform
16.  abstract class TypeAdapter extends AnyRef
    Definition Classes
      TypeAdaptingTransformer
17.  abstract class TypingTransformer extends Global.Transformer
    Definition Classes
      TypingTransformers
18.  trait Adaptation extends AnyRef
    Definition Classes
      Adaptations
19.  trait AnalyzerPlugin extends AnyRef
    Definition Classes
      AnalyzerPlugins
20.  trait MacroPlugin extends AnyRef

    Definition Classes
      AnalyzerPlugins
21.  trait InferCheckable extends AnyRef
    Definition Classes
      Checkable
22.  abstract class AbsAmbiguousTypeError extends Analyzer.AbsTypeError
    Definition Classes
      ContextErrors
23.  sealed abstract class AbsTypeError extends Throwable
    Definition Classes
      ContextErrors
24.  case class AccessTypeError (underlyingTree: Global.Tree, errMsg: String) extends Analyzer.TreeTypeError with Product with Serializable
    Definition Classes
      ContextErrors
25.  case class AmbiguousImplicitTypeError (underlyingTree: Global.Tree, errMsg: String) extends Analyzer.AbsAmbiguousTypeError with Product with Serializable
    Definition Classes
      ContextErrors
26.  case class AmbiguousTypeError (errPos: Global.Position, errMsg: String) extends Analyzer.AbsAmbiguousTypeError with Product with Serializable
    Definition Classes
      ContextErrors
27.  case class DivergentImplicitTypeError (underlyingTree: Global.Tree, pt0: Global.Type, sym: Global.Symbol) extends Analyzer.TreeTypeError with Product with Serializable
    Definition Classes
      ContextErrors
28.  trait ImplicitsContextErrors extends AnyRef
    Definition Classes
      ContextErrors
29.  trait InferencerContextErrors extends AnyRef
    Definition Classes
      ContextErrors
30.  trait NamerContextErrors extends AnyRef
    Definition Classes
      ContextErrors
31.  case class NormalTypeError (underlyingTree: Global.Tree, errMsg: String) extends Analyzer.TreeTypeError with Product with Serializable
    Definition Classes
      ContextErrors
32.  class NormalTypeErrorFromCyclicReference extends Analyzer.NormalTypeError

    Marks a TypeError that was constructed from a CyclicReference (under silent).

    Marks a TypeError that was constructed from a CyclicReference (under silent). This is used for named arguments, where we need to know if an assignment expression failed with a cyclic reference or some other type error.

    Definition Classes
      ContextErrors
33.  case class PosAndMsgTypeError (errPos: Global.Position, errMsg: String) extends Analyzer.AbsTypeError with Product with Serializable
    Definition Classes
      ContextErrors
34.  case class SymbolTypeError (underlyingSym: Global.Symbol, errMsg: String) extends Analyzer.AbsTypeError with Product with Serializable
    Definition Classes
      ContextErrors
35.  sealed abstract class TreeTypeError extends Analyzer.AbsTypeError
    Definition Classes
      ContextErrors
36.  case class TypeErrorWithUnderlyingTree (tree: Global.Tree, ex: Global.TypeError) extends Analyzer.AbsTypeError with Product with Serializable
    Definition Classes
      ContextErrors
37.  case class TypeErrorWrapper (ex: Global.TypeError) extends Analyzer.AbsTypeError with Product with Serializable
    Definition Classes
      ContextErrors
38.  trait TyperContextErrors extends AnyRef
    Definition Classes
      ContextErrors
39.  class Context extends AnyRef

    A motley collection of the state and loosely associated behaviour of the type checker.

    A motley collection of the state and loosely associated behaviour of the type checker. Each `Typer` has an associated context, and as it descends into the tree new `(Typer, Context)` pairs are spawned.

    Meet the crew; first the state:

    - A tree, symbol, and scope representing the focus of the typechecker
    - An enclosing context, `outer`.
    - The current compilation unit.
    - A variety of bits that track the current error reporting policy (more on this later); whether or not implicits/macros are enabled, whether we are in a self or super call or in a constructor suffix. These are represented as bits in the mask `contextMode`.
    - Some odds and ends: undetermined type parameters of the current line of type inference; contextual augmentation for error messages, tracking of the nesting depth.

    And behaviour:

    - The central point for issuing errors and warnings from the typechecker, with a means to buffer these for use in 'silent' type checking, when some recovery might be possible.
    - `Context` is something of a Zipper for the tree were are typechecking: it `enclosingContextChain` is the path back to the root. This is exactly what we need to resolve names (`lookupSymbol`) and to collect in-scope implicit definitions (`implicitss`) Supporting these are `imports`, which represents all `Import` trees in in the enclosing context chain.
    - In a similar vein, we can assess accessibility (`isAccessible`.)

    More on error buffering: When are type errors recoverable? In quite a few places, it turns out. Some examples: trying to type an application with/without the expected type, or with/without implicit views enabled. This is usually mediated by `Typer.silent`, `Inferencer#tryTwice`.

    Initially, starting from the `typer` phase, the contexts either buffer or report errors; afterwards errors are thrown. This is configured in `rootContext`. Additionally, more fine grained control is needed based on the kind of error; ambiguity errors are often suppressed during exploratory typing, such as determining whether `a == b` in an argument position is an assignment or a named argument, when `Inferencer#isApplicableSafe` type checks applications with and without an expected type, or when `Typer#tryTypedApply` tries to fit arguments to a function type with/without implicit views.

    When the error policies entail error/warning buffering, the mutable ReportBuffer records everything that is issued. It is important to note, that child Contexts created with `make` "inherit" the very same `ReportBuffer` instance, whereas children spawned through `makeSilent` receive a separate, fresh buffer.

    Definition Classes
      Contexts
40.  abstract class ContextReporter extends Reporter

    A reporter for use during type checking.

    A reporter for use during type checking. It has multiple modes for handling errors.

    The default (immediate mode) is to send the error to the global reporter. When switched into buffering mode via makeBuffering, errors and warnings are buffered and not be reported (there's a special case for ambiguity errors for some reason: those are force to the reporter when context.ambiguousErrors, or else they are buffered -- TODO: can we simplify this?)

    When using the type checker after typers, an error results in a TypeError being thrown. TODO: get rid of this mode.

    To handle nested contexts, reporters share buffers. TODO: only buffer in BufferingReporter, emit immediately in ImmediateReporter

    Definition Classes
      Contexts
41.  trait ImportContext extends Analyzer.Context

    A `Context` focussed on an `Import` tree

    A `Context` focussed on an `Import` tree

    Definition Classes
      Contexts
42.  class ImportInfo extends AnyRef
    Definition Classes
      Contexts
43.  class ImplicitAnnotationMsg extends AnyRef
    Definition Classes
      Implicits
44.  class ImplicitInfo extends AnyRef

    A class that records an available implicit

    A class that records an available implicit

    Definition Classes
      Implicits
45.  class ImplicitSearch extends Analyzer.Typer with Analyzer.ImplicitsContextErrors

    A class that sets up an implicit search.

    A class that sets up an implicit search. For more info, see comments for `inferImplicit`.

    Definition Classes
      Implicits
46.  class Message extends AnyRef
    Definition Classes
      Implicits
47.  case class OpenImplicit (info: Analyzer.ImplicitInfo, pt: Global.Type, tree: Global.Tree) extends Product with Serializable

    A class which is used to track pending implicits to prevent infinite implicit searches.

    A class which is used to track pending implicits to prevent infinite implicit searches.

    Definition Classes
      Implicits
48.  class SearchResult extends AnyRef

    The result of an implicit search

    The result of an implicit search

    Definition Classes
      Implicits
49.  abstract class Inferencer extends Analyzer.InferencerContextErrors with Analyzer.InferCheckable

    The context-dependent inferencer part

    The context-dependent inferencer part

    Definition Classes
      Infer
50.  class NoInstance extends Throwable with ControlThrowable
    Definition Classes
      Infer
51.  class DefMacroExpander extends Analyzer.MacroExpander

    Expands a term macro used in apply role as `M(2)(3)` in `val x = M(2)(3)`.

    Expands a term macro used in apply role as `M(2)(3)` in `val x = M(2)(3)`.

    Definition Classes
      Macros
52.  case class Delayed (delayed: Global.Tree) extends Analyzer.MacroStatus with Product with Serializable
    Definition Classes
      Macros
53.  case class Failure (failure: Global.Tree) extends Analyzer.MacroStatus with Product with Serializable
    Definition Classes
      Macros
54.  case class Fallback (fallback: Global.Tree) extends Analyzer.MacroStatus with Product with Serializable
    Definition Classes
      Macros
55.  case class MacroArgs (c: Analyzer.MacroContext, others: List[Any]) extends Product with Serializable

    Calculate the arguments to pass to a macro implementation when expanding the provided tree.

    Calculate the arguments to pass to a macro implementation when expanding the provided tree.

    Definition Classes
      Macros
56.  abstract class MacroExpander extends AnyRef

    Performs macro expansion:

    Performs macro expansion:

    ###### Expandable trees

    A term of one of the following shapes:

    Ident(<term macro>) Select(<any qualifier>, <term macro>) TypeApply(<any of the above>, <targs>) Apply(...Apply(<any of the above>, <args1>)...<argsN>)

    ###### Macro expansion

    First of all `macroExpandXXX`: 1) If necessary desugars the `expandee` to fit into the default expansion scheme that is understood by `macroExpandWithRuntime` / `macroExpandWithoutRuntime`

    Then `macroExpandWithRuntime`: 2) Checks whether the expansion needs to be delayed 3) Loads macro implementation using `macroMirror` 4) Synthesizes invocation arguments for the macro implementation 5) Checks that the result is a tree or an expr bound to this universe

    Finally `macroExpandXXX`: 6) Validates the expansion against the white list of supported tree shapes 7) Typechecks the result as required by the circumstances of the macro application

    If -Ymacro-debug-lite is enabled, you will get basic notifications about macro expansion along with macro expansions logged in the form that can be copy/pasted verbatim into REPL.

    If -Ymacro-debug-verbose is enabled, you will get detailed log of how exactly this function performs class loading and method resolution in order to load the macro implementation. The log will also include other non-trivial steps of macro expansion.

    returns

      the expansion result if the expansion has been successful, the fallback tree if the expansion has been unsuccessful, but there is a fallback, the expandee unchanged if the expansion has been delayed, the expandee fully expanded if the expansion has been delayed before and has been expanded now, the expandee with an error marker set if the expansion has been cancelled due malformed arguments or implementation the expandee with an error marker set if there has been an error

    Definition Classes
      Macros
57.  case class MacroImplBinding (isBundle: Boolean, isBlackbox: Boolean, className: String, methName: String, signature: List[List[Fingerprint]], targs: List[Global.Tree]) extends Product with Serializable

    Represents all the information that a macro definition needs to know about its implementation.

    Represents all the information that a macro definition needs to know about its implementation. Includes a path to load the implementation via Java reflection, and various accounting information necessary when composing an argument list for the reflective invocation.

    Definition Classes
      Macros
58.  sealed abstract class MacroStatus extends AnyRef
    Definition Classes
      Macros
59.  case class Skipped (skipped: Global.Tree) extends Analyzer.MacroStatus with Product with Serializable
    Definition Classes
      Macros
60.  case class Success (expanded: Global.Tree) extends Analyzer.MacroStatus with Product with Serializable
    Definition Classes
      Macros
61.  class ClassMethodSynthesis extends AnyRef
    Definition Classes
      MethodSynthesis
62.  trait MethodSynth extends AnyRef

    There are two key methods in here.

    There are two key methods in here.

    1) Enter methods such as enterGetterSetter are called from Namer with a tree which may generate further trees such as accessors or implicit wrappers. Some setup is performed. In general this creates symbols and enters them into the scope of the owner.

    2) addDerivedTrees is called from Typer when a Template is typed. It completes the job, returning a list of trees with their symbols set to those created in the enter methods. Those trees then become part of the typed template.

    Definition Classes
      MethodSynthesis
63.  class CompleterWrapper extends Analyzer.TypeCompleter

    Wrap an existing completer to do some post/pre-processing of the completed type.

    Wrap an existing completer to do some post/pre-processing of the completed type.

    Definition Classes
      Namers
64.  trait LockingTypeCompleter extends Analyzer.TypeCompleter
    Definition Classes
      Namers
65.  abstract class Namer extends Analyzer.MethodSynth with Analyzer.NamerContextErrors
    Definition Classes
      Namers
66.  class PolyTypeCompleter extends Analyzer.TypeCompleter with Analyzer.LockingTypeCompleter with Global.FlagAgnosticCompleter

    A class representing a lazy type with known type parameters.

    A class representing a lazy type with known type parameters. `ctx` is the namer context in which the `owner` is defined.

    Constructing a PolyTypeCompleter for a DefDef creates type skolems for the type parameters and assigns them to the `tparams` trees.

    Definition Classes
      Namers
67.  abstract class TypeCompleter extends Global.LazyType
    Definition Classes
      Namers
68.  abstract class TypeCompleterBase [T <: Global.Tree] extends Analyzer.TypeCompleter with Analyzer.LockingTypeCompleter with Global.FlagAgnosticCompleter
    Definition Classes
      Namers
69.  class ConstructorDefaultsAttachment extends AnyRef
    Definition Classes
      NamesDefaults
70.  class DefaultsOfLocalMethodAttachment extends AnyRef
    Definition Classes
      NamesDefaults
71.  case class NamedApplyInfo (qual: Option[Global.Tree], targs: List[Global.Tree], vargss: List[List[Global.Tree]], blockTyper: Analyzer.Typer) extends Product with Serializable
    Definition Classes
      NamesDefaults
72.  trait PatternTyper extends AnyRef
    Definition Classes
      PatternTypers
73.  case class MacroExpanderAttachment (original: Global.Tree, desugared: Global.Tree) extends Product with Serializable

    Scratchpad for the macro expander, which is used to store all intermediate data except the details about the runtime.

    Scratchpad for the macro expander, which is used to store all intermediate data except the details about the runtime.

    Definition Classes
      StdAttachments
74.  case class MacroExpansionAttachment (expandee: Global.Tree, expanded: Any) extends Product with Serializable

    Is added by the macro engine to originals and results of macro expansions.

    Is added by the macro engine to originals and results of macro expansions. Stores the original expandee as it entered the `macroExpand` function.

    Definition Classes
      StdAttachments
75.  case class MacroRuntimeAttachment (delayed: Boolean, typerContext: Analyzer.Context, macroContext: Option[Analyzer.MacroContext]) extends Product with Serializable
    Definition Classes
      StdAttachments
76.  case class SuperArgsAttachment (argss: List[List[Global.Tree]]) extends Product with Serializable

    After being synthesized by the parser, primary constructors aren't fully baked yet.

    After being synthesized by the parser, primary constructors aren't fully baked yet. A call to super in such constructors is just a fill-me-in-later dummy resolved later by `parentTypes`. This attachment coordinates `parentTypes` and `typedTemplate` and allows them to complete the synthesis.

    Definition Classes
      StdAttachments
77.  trait Tag extends AnyRef
    Definition Classes
      Tags
78.  case class TypeDiag (tp: Global.Type, sym: Global.Symbol) extends Ordered[(TypeDiagnostics.this)#TypeDiag] with Product with Serializable
    Definition Classes
      TypeDiagnostics
79.  trait TyperDiagnostics extends AnyRef
    Definition Classes
      TypeDiagnostics
80.  sealed abstract class SilentResult [+T] extends AnyRef
    Definition Classes
      Typers
81.  case class SilentResultValue [+T](value: T) extends Analyzer.SilentResult[T] with Product with Serializable
    Definition Classes
      Typers
82.  class SilentTypeError extends Analyzer.SilentResult[Nothing]
    Definition Classes
      Typers
83.  abstract class Typer extends Analyzer.TyperDiagnostics with Analyzer.Adaptation with Analyzer.Tag with Analyzer.PatternTyper with Analyzer.TyperContextErrors
    Definition Classes
      Typers
84.  class ClassForCaseCompanionAttachment extends AnyRef
    Definition Classes
      Unapplies

### 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.  lazy val AmbiguousSearchFailure: SearchResult
   Definition Classes
     Implicits
5.  def Delay(expanded: Global.Tree): Delayed
   Definition Classes
     Macros
6.  lazy val DivergentSearchFailure: SearchResult
   Definition Classes
     Implicits
7.  val ImportType: Global.ImportType.type
   Definition Classes
     Contexts
8.  def MacroCantExpand210xMacrosError(internalMessage: String): Nothing
   Definition Classes
     ContextErrors
9.  def MacroCantExpandIncompatibleMacrosError(internalMessage: String): Nothing
   Definition Classes
     ContextErrors
10.  def NoImplicitFoundError(tree: Global.Tree, param: Global.Symbol)(implicit context: Context): Unit
    Definition Classes
      ContextErrors
11.  val NoImplicitInfo: ImplicitInfo

    A sentinel indicating no implicit was found

    A sentinel indicating no implicit was found

    Definition Classes
      Implicits
12.  lazy val SearchFailure: SearchResult
    Definition Classes
      Implicits
13.  def Skip(expanded: Global.Tree): Skipped
    Definition Classes
      Macros
14.  val _lockedCount: Int
    Definition Classes
      Namers
15.  val _openMacros: collection.immutable.List[reflect.macros.contexts.Context { val universe: scala.tools.nsc.Global.erasure.global.type }]

    Keeps track of macros in-flight.

    Keeps track of macros in-flight. See more informations in comments to `openMacros` in `scala.reflect.macros.whitebox.Context`.

    Definition Classes
      Macros
16.  def abstractVarMessage(sym: Global.Symbol): String

    An explanatory note to be added to error messages when there's a problem with abstract var defs

    An explanatory note to be added to error messages when there's a problem with abstract var defs

    Definition Classes
      TypeDiagnostics
17.  def adaptAnnotations(tree: Global.Tree, typer: Typer, mode: Mode, pt: Global.Type): Global.Tree

    Definition Classes
      AnalyzerPlugins
    See also

      AnalyzerPlugin.adaptAnnotations

18.  def addAnalyzerPlugin(plugin: AnalyzerPlugin): Unit

    Registers a new analyzer plugin

    Registers a new analyzer plugin

    Definition Classes
      AnalyzerPlugins
19.  def addDefaults(givenArgs: List[Global.Tree], qual: Option[Global.Tree], targs: List[Global.Tree], previousArgss: List[List[Global.Tree]], params: List[Global.Symbol], pos: reflect.internal.util.Position, context: Context): (List[Global.Tree], List[Global.Symbol])

    Extend the argument list `givenArgs` with default arguments.

    Extend the argument list `givenArgs` with default arguments. Defaults are added as named arguments calling the corresponding default getter.

    Example: given def foo(x: Int = 2, y: String = "def") foo(y = "lt") the argument list (y = "lt") is transformed to (y = "lt", x = foo$default$1())

    Definition Classes
      NamesDefaults
20.  def addMacroPlugin(plugin: MacroPlugin): Unit

    Registers a new macro plugin

    Registers a new macro plugin

    Definition Classes
      AnalyzerPlugins
21.  def addSyntheticMethods(templ: Global.Template, clazz0: Global.Symbol, context: Context): Global.Template

    Add the synthetic methods to case classes.

    Add the synthetic methods to case classes.

    Definition Classes
      SyntheticMethods
22.  final def afterOwnPhase[T](op: ⇒ T): T
    Definition Classes
      SubComponent
    Annotations
      @inline()
23.  def allArgsArePositional(a: Array[Int]): Boolean

    returns `true` if every element is equal to its index

    returns `true` if every element is equal to its index

    Definition Classes
      NamesDefaults
24.  def allViewsFrom(tp: Global.Type, context: Context, tpars: List[Global.Symbol]): List[(SearchResult, List[Global.TypeConstraint])]

    Find all views from type `tp` (in which `tpars` are free)

    Find all views from type `tp` (in which `tpars` are free)

    Note that the trees in the search results in the returned list share the same type variables. Ignore their constr field! The list of type constraints returned along with each tree specifies the constraints that must be met by the corresponding type parameter in `tpars` (for the returned implicit view to be valid).

    tp

      from-type for the implicit conversion

    context

      search implicits here

    tpars

      symbols that should be considered free type variables (implicit search should not try to solve them, just track their constraints)

    Definition Classes
      Implicits
25.  def alternatives(tree: Global.Tree): List[Global.Type]
    Definition Classes
      TypeDiagnostics
26.  def alternativesString(tree: Global.Tree): String
    Definition Classes
      TypeDiagnostics
27.  def ambiguousDefnAndImport(owner: Global.Symbol, imp: ImportInfo): Global.LookupAmbiguous
    Definition Classes
      Contexts
28.  def ambiguousImports(imp1: ImportInfo, imp2: ImportInfo): Global.LookupAmbiguous
    Definition Classes
      Contexts
29.  val analyzer: Analyzer { val global: scala.tools.nsc.Global.erasure.global.type }
    Definition Classes
      Erasure
30.  final def asInstanceOf[T0]: T0
    Definition Classes
      Any
31.  final def beforeOwnPhase[T](op: ⇒ T): T
    Definition Classes
      SubComponent
    Annotations
      @inline()
32.  def bindMacroImpl(macroDef: Global.Symbol, macroImplRef: Global.Tree): Unit
    Definition Classes
      Macros
33.  def canAdaptAnnotations(tree: Global.Tree, typer: Typer, mode: Mode, pt: Global.Type): Boolean

    Definition Classes
      AnalyzerPlugins
    See also

      AnalyzerPlugin.canAdaptAnnotations

34.  final def caseAccessorName(caseclazz: Global.Symbol, paramName: Global.TermName): Global.TermName

    Does not force the info of `caseclazz`

    Does not force the info of `caseclazz`

    Definition Classes
      SyntheticMethods
35.  def caseClassCopyMeth(cdef: Global.ClassDef): Option[Global.DefDef]

    Generates copy methods for case classes.

    Generates copy methods for case classes. Copy only has defaults on the first parameter list, as of SI-5009.

    The parameter types of the copy method need to be exactly the same as the parameter types of the primary constructor. Just copying the TypeTree is not enough: a type `C` might refer to something else *inside* the class (i.e. as parameter type of `copy`) than *outside* the class (i.e. in the class parameter list).

    One such example is t0054.scala: class A { case class B(x: C) extends A { def copy(x: C = x) = ... } class C {} } (1) (2)

    The reference (1) to C is `A.this.C`. The reference (2) is `B.this.C` - not the same.

    This is fixed with a hack currently. `Unapplies.caseClassCopyMeth`, which creates the copy method, uses empty `TypeTree()` nodes for parameter types.

    In `Namers.enterDefDef`, the copy method gets a special type completer (`enterCopyMethod`). Before computing the body type of `copy`, the class parameter types are assigned the copy method parameters.

    This attachment class stores the copy method parameter ValDefs as an attachment in the ClassDef of the case class.

    Definition Classes
      Unapplies
36.  def caseModuleApplyMeth(cdef: Global.ClassDef): Global.DefDef

    The apply method corresponding to a case class

    The apply method corresponding to a case class

    Definition Classes
      Unapplies
37.  def caseModuleDef(cdef: Global.ClassDef): Global.ModuleDef

    The module corresponding to a case class; overrides toString to show the module's name

    The module corresponding to a case class; overrides toString to show the module's name

    Definition Classes
      Unapplies
38.  def caseModuleUnapplyMeth(cdef: Global.ClassDef): Global.DefDef

    The unapply method corresponding to a case class

    The unapply method corresponding to a case class

    Definition Classes
      Unapplies
39.  def changesBaseClasses: Boolean
    Attributes
      protected
    Definition Classes
      InfoTransform
40.  final def clearRenamedCaseAccessors(caseclazz: Global.Symbol): Unit
    Definition Classes
      SyntheticMethods
41.  def clone(): AnyRef
    Attributes
      protected[java.lang]
    Definition Classes
      AnyRef
    Annotations
      @throws( ... )
42.  def companionModuleDef(cdef: Global.ClassDef, parents: List[Global.Tree] = Nil, body: List[Global.Tree] = Nil): Global.ModuleDef
    Definition Classes
      Unapplies
43.  def companionSymbolOf(original: Global.Symbol, ctx: Context): Global.Symbol

    The companion class or companion module of `original`.

    The companion class or companion module of `original`. Calling .companionModule does not work for classes defined inside methods.

    !!! Then why don't we fix companionModule? Does the presence of these methods imply all the places in the compiler calling sym.companionModule are bugs waiting to be reported? If not, why not? When exactly do we need to call this method?

    Definition Classes
      Namers
44.  final def compilesToPureInterface(tpSym: Global.Symbol): Boolean

    Does this symbol compile to the underlying platform's notion of an interface, without requiring compiler magic before it can be instantiated?

    Does this symbol compile to the underlying platform's notion of an interface, without requiring compiler magic before it can be instantiated?

    More specifically, we're interested in whether LambdaMetaFactory can instantiate this type, assuming it has a single abstract method. In other words, if we were to mix this trait into a class, it should not result in any compiler-generated members having to be implemented in ("mixed in to") this class (except for the SAM).

    Thus, the type must erase to a java interface, either by virtue of being defined as one, or by being a trait that:

    - is static (explicitouter or lambdalift may add disqualifying members)
    - extends only other traits that compile to pure interfaces (except for Any)
    - has no val/var members

    TODO: can we speed this up using the INTERFACE flag, or set it correctly by construction?

    Definition Classes
      Erasure
45.  def computeMacroDefTypeFromMacroImplRef(macroDdef: Global.DefDef, macroImplRef: Global.Tree): Global.Type
    Definition Classes
      Macros
46.  def decodeWithKind(name: Global.Name, owner: Global.Symbol): String
    Definition Classes
      TypeDiagnostics
47.  val deconstMap: Global.TypeMap
    Definition Classes
      Erasure
48.  def decreaseMetalevel(tp: Global.Type): Global.Type

    Decreases metalevel of the type, i.e.

    Decreases metalevel of the type, i.e. transforms: * c.Expr[T] to T * Nothing to Nothing * Anything else to NoType

    Definition Classes
      Helpers
    See also

      Metalevels.scala for more information and examples about metalevels

49.  def defaultGetter(param: Global.Symbol, context: Context): Global.Symbol

    For a parameter with default argument, find the method symbol of the default getter.

    For a parameter with default argument, find the method symbol of the default getter.

    Definition Classes
      NamesDefaults
50.  def defaultMacroClassloader: ClassLoader
    Definition Classes
      MacroRuntimes
51.  def directUnapplyMember(tp: Global.Type): Global.Symbol

    Returns unapply or unapplySeq if available, without further checks.

    Returns unapply or unapplySeq if available, without further checks.

    Definition Classes
      Unapplies
52.  def disambiguate(ss: List[String]): collection.immutable.List[String]
    Definition Classes
      TypeDiagnostics
53.  def enabled: Boolean

    Is this component enabled? Default is true.

    Is this component enabled? Default is true.

    Definition Classes
      SubComponent
54.  def enclosingMacroPosition: reflect.internal.util.Position
    Definition Classes
      Macros
55.  final def eq(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef
56.  def equals(arg0: Any): Boolean
    Definition Classes
      AnyRef → Any
57.  def erasedValueClassArg(tref: Global.TypeRef): Global.Type
    Definition Classes
      Erasure
58.  def erasure(sym: Global.Symbol): ErasureMap
    Definition Classes
      Erasure
59.  def etaExpand(unit: Global.CompilationUnit, tree: Global.Tree, typer: Typer): Global.Tree

    Expand partial method application `p.f(es_1)...(es_n)`.

    Expand partial method application `p.f(es_1)...(es_n)`.

    We expand this to the following block, which evaluates the target of the application and its supplied arguments if needed (they are not stable), and then wraps a Function that abstracts over the missing arguments.

    ```{ private synthetic val eta$f = p.f // if p is not stable ... private synthetic val eta$e_i = e_i // if e_i is not stable ... (ps_1 => ... => ps_m => eta$f([es_1])...([es_m])(ps_1)...(ps_m)) } `````````

    This is called from instantiateToMethodType after type checking `tree`, and we realize we have a method type, where a function type (builtin or SAM) is expected.

    Definition Classes
      EtaExpansion
60.  final def exampleTuplePattern(names: List[Global.Name]): String

    [a, b, c] => "(a, b, c)" [a, B] => "(param1, param2)" [a, B, c] => "(param1, ..., param2)"

    [a, b, c] => "(a, b, c)" [a, B] => "(param1, param2)" [a, B, c] => "(param1, ..., param2)"

    Definition Classes
      TypeDiagnostics
61.  def existentialContext(tp: Global.Type): String
    Definition Classes
      TypeDiagnostics
62.  def explainAlias(tp: Global.Type): String
    Definition Classes
      TypeDiagnostics
63.  def explainAnyVsAnyRef(found: Global.Type, req: Global.Type): String
    Definition Classes
      TypeDiagnostics
64.  def explainVariance(found: Global.Type, req: Global.Type): String

    Look through the base types of the found type for any which might have been valid subtypes if given conformant type arguments.

    Look through the base types of the found type for any which might have been valid subtypes if given conformant type arguments. Examine those for situations where the type error would have been eliminated if the variance were different. In such cases, append an additional explanatory message.

    TODO: handle type aliases better.

    Definition Classes
      TypeDiagnostics
65.  def factoryMeth(mods: Global.Modifiers, name: Global.TermName, cdef: Global.ClassDef): Global.DefDef

    The apply method corresponding to a case class

    The apply method corresponding to a case class

    Definition Classes
      Unapplies
66.  final def falseIfNoInstance(body: ⇒ Boolean): Boolean
    Definition Classes
      Infer
    Annotations
      @inline()
67.  lazy val fastTrack: FastTrack[Global.erasure.this.type]
    Definition Classes
      Macros
68.  def finalOwners(tpe: Global.Type): Boolean
    Definition Classes
      TypeDiagnostics
69.  def finalize(): Unit
    Attributes
      protected[java.lang]
    Definition Classes
      AnyRef
    Annotations
      @throws( classOf[java.lang.Throwable] )
70.  def findMacroClassLoader(): ClassLoader

    Obtains a `ClassLoader` instance used for macro expansion.

    Obtains a `ClassLoader` instance used for macro expansion.

    By default a new `ScalaClassLoader` is created using the classpath from global and the classloader of self as parent.

    Mirrors with runtime definitions (e.g. Repl) need to adjust this method.

    Attributes
      protected
    Definition Classes
      Macros
71.  final def forArgMode(fun: Global.Tree, mode: Mode): reflect.internal.Mode
    Definition Classes
      Typers
72.  def formalTypes(formals: List[Global.Type], numArgs: Int, removeByName: Boolean = true, removeRepeated: Boolean = true): List[Global.Type]

    The formal parameter types corresponding to `formals`.

    The formal parameter types corresponding to `formals`. If `formals` has a repeated last parameter, a list of (numArgs - numFormals + 1) copies of its type is appended to the other formals. By-name types are replaced with their underlying type.

    removeByName

      allows keeping ByName parameters. Used in NamesDefaults.

    removeRepeated

      allows keeping repeated parameter (if there's one argument). Used in NamesDefaults.

    Definition Classes
      Infer
73.  def foundReqMsg(found: Global.Type, req: Global.Type): String
    Definition Classes
      TypeDiagnostics
74.  def freshVar(tparam: Global.Symbol): Global.TypeVar

    A fresh type variable with given type parameter as origin.

    A fresh type variable with given type parameter as origin.

    Definition Classes
      Infer
75.  def fullSiteString(context: Context): String
    Definition Classes
      TypersTracking
76.  final def getClass(): Class[_]
    Definition Classes
      AnyRef → Any
77.  val global: Global.this.type
    Definition Classes
      erasure → TypingTransformers → Analyzer → TreeDSL → Erasure → SubComponent
78.  def globalSettings: Settings
    Definition Classes
      Macros → Traces
79.  def hasMacroExpansionAttachment(any: Any): Boolean

    Determines whether the target is either an original or a result of a macro expansion.

    Determines whether the target is either an original or a result of a macro expansion. The parameter is of type `Any`, because macros can expand both into trees and into annotations.

    Definition Classes
      StdAttachments
80.  val hasPendingMacroExpansions: Boolean

    Without any restrictions on macro expansion, macro applications will expand at will, and when type inference is involved, expansions will end up using yet uninferred type params.

    Without any restrictions on macro expansion, macro applications will expand at will, and when type inference is involved, expansions will end up using yet uninferred type params.

    For some macros this might be ok (thanks to TreeTypeSubstituter that replaces the occurrences of undetparams with their inferred values), but in general case this won't work. E.g. for reification simple substitution is not enough - we actually need to re-reify inferred types.

    Luckily, there exists a very simple way to fix the problem: delay macro expansion until everything is inferred. Here are the exact rules. Macro application gets delayed if any of its subtrees contain: 1) type vars (tpe.isInstanceOf[TypeVar]) // [Eugene] this check is disabled right now, because TypeVars seem to be created from undetparams anyways 2) undetparams (sym.isTypeParameter && !sym.isSkolem)

    Definition Classes
      Macros
81.  def hasSuperArgs(tree: Global.Tree): Boolean

    Determines whether the given tree has an associated SuperArgsAttachment.

    Determines whether the given tree has an associated SuperArgsAttachment.

    Definition Classes
      StdAttachments
82.  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
83.  def increaseMetalevel(pre: Global.Type, tp: Global.Type): Global.Type

    Increases metalevel of the type, i.e.

    Increases metalevel of the type, i.e. transforms: * T to c.Expr[T]

    Definition Classes
      Helpers
    See also

      Metalevels.scala for more information and examples about metalevels

84.  def inferImplicit(tree: Global.Tree, pt: Global.Type, isView: Boolean, context: Context, silent: Boolean, withMacrosDisabled: Boolean, pos: Global.Position, onError: (Global.Position, String) ⇒ Unit): Global.Tree

    A friendly wrapper over inferImplicit to be used in macro contexts and toolboxes.

    A friendly wrapper over inferImplicit to be used in macro contexts and toolboxes.

    Definition Classes
      Implicits
85.  def inferImplicit(tree: Global.Tree, pt: Global.Type, reportAmbiguous: Boolean, isView: Boolean, context: Context, saveAmbiguousDivergent: Boolean, pos: Global.Position): SearchResult

    Search for an implicit value.

    Search for an implicit value. Consider using one of the convenience methods above. This one has many boolean levers.

    See the comment on `result` at the end of class `ImplicitSearch` for more info how the search is conducted.

    tree

      The tree for which the implicit needs to be inserted. (the inference might instantiate some of the undetermined type parameters of that tree.

    pt

      The expected type of the implicit.

    reportAmbiguous

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

    isView

      We are looking for a view

    context

      The current context

    saveAmbiguousDivergent

      False if any divergent/ambiguous errors should be ignored after implicits search, true if they should be reported (used in further typechecking).

    pos

      Position that is should be used for tracing and error reporting (useful when we infer synthetic stuff and pass EmptyTree in the `tree` argument) If it's set NoPosition, then position-based services will use `tree.pos`

    returns

      A search result

    Definition Classes
      Implicits
86.  def inferImplicitByType(pt: Global.Type, context: Context, pos: Global.Position = NoPosition): SearchResult
    Definition Classes
      Implicits
87.  def inferImplicitByTypeSilent(pt: Global.Type, context: Context, pos: Global.Position = NoPosition): SearchResult
    Definition Classes
      Implicits
88.  def inferImplicitFor(pt: Global.Type, tree: Global.Tree, context: Context, reportAmbiguous: Boolean = true): SearchResult
    Definition Classes
      Implicits
89.  def inferImplicitView(from: Global.Type, to: Global.Type, tree: Global.Tree, context: Context, reportAmbiguous: Boolean, saveAmbiguousDivergent: Boolean): SearchResult
    Definition Classes
      Implicits
90.  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
91.  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
92.  def intersectionDominator(parents: List[Global.Type]): Global.Type
    Definition Classes
      Erasure
93.  def isBlackbox(macroDef: Global.Symbol): Boolean
    Definition Classes
      Macros
94.  def isBlackbox(expandee: Global.Tree): Boolean
    Definition Classes
      Macros
95.  def isDynamicRewrite(tree: Global.Tree): Boolean
    Definition Classes
      StdAttachments
96.  def isIndividualImport(s: Global.ImportSelector): Boolean
    Definition Classes
      Contexts
97.  final def isInstanceOf[T0]: Boolean
    Definition Classes
      Any
98.  def isMacroExpansionSuppressed(tree: Global.Tree): Boolean

    Determines whether a tree should not be expanded, because someone has put SuppressMacroExpansionAttachment on it or one of its children.

    Determines whether a tree should not be expanded, because someone has put SuppressMacroExpansionAttachment on it or one of its children.

    Definition Classes
      StdAttachments
99.  def isMacroImplRef(tree: Global.Tree): Boolean

    Determines whether a tree should or should not be adapted, because someone has put MacroImplRefAttachment on it.

    Determines whether a tree should or should not be adapted, because someone has put MacroImplRefAttachment on it.

    Definition Classes
      StdAttachments
100.  def isMaskImport(s: Global.ImportSelector): Boolean
     Definition Classes
       Contexts
101.  def isNamedArg(arg: Global.Tree): Boolean
     Definition Classes
       NamesDefaults
102.  def isWildcardImport(s: Global.ImportSelector): Boolean
     Definition Classes
       Contexts
103.  def javaSig(sym0: Global.Symbol, info: Global.Type): Option[String]

     The Java signature of type 'info', for symbol sym.

     The Java signature of type 'info', for symbol sym. The symbol is used to give the right return type for constructors.

     Definition Classes
       Erasure
104.  def keepsTypeParams: Boolean
     Definition Classes
       Erasure → InfoTransform
105.  val lastAccessCheckDetails: String
     Definition Classes
       Contexts
106.  val lastTreeToTyper: Global.Tree
     Definition Classes
       TypersTracking
107.  def linePrecedes(t1: Global.Tree, t2: Global.Tree): Boolean
     Definition Classes
       TypeDiagnostics
108.  def linkExpandeeAndDesugared(expandee: Global.Tree, desugared: Global.Tree): Unit

     After macro expansion is completed, links the expandee and the expansion result by annotating them both with a `MacroExpansionAttachment`.

     After macro expansion is completed, links the expandee and the expansion result by annotating them both with a `MacroExpansionAttachment`.

     Definition Classes
       StdAttachments
109.  def linkExpandeeAndExpanded(expandee: Global.Tree, expanded: Any): Unit

     After macro expansion is completed, links the expandee and the expansion result by annotating them both with a `MacroExpansionAttachment`.

     After macro expansion is completed, links the expandee and the expansion result by annotating them both with a `MacroExpansionAttachment`. The `expanded` parameter is of type `Any`, because macros can expand both into trees and into annotations.

     Definition Classes
       StdAttachments
110.  final def linkedClassOfClassOf(original: Global.Symbol, ctx: Context): Global.Symbol

     A version of `Symbol#linkedClassOfClass` that works with local companions, ala `companionSymbolOf`.

     A version of `Symbol#linkedClassOfClass` that works with local companions, ala `companionSymbolOf`.

     Definition Classes
       Namers
111.  def loadMacroImplBinding(macroDef: Global.Symbol): Option[MacroImplBinding]
     Definition Classes
       Macros
112.  def lockedCount: Int
     Definition Classes
       Namers
113.  def macroArgs(typer: Typer, expandee: Global.Tree): MacroArgs
     Definition Classes
       Macros
114.  def macroContext(typer: Typer, prefixTree: Global.Tree, expandeeTree: Global.Tree): MacroContext
     Definition Classes
       Macros
115.  val macroDebugLite: Boolean
     Definition Classes
       Traces
116.  val macroDebugVerbose: Boolean
     Definition Classes
       Traces
117.  def macroEngine: String

     Macro def -> macro impl bindings are serialized into a `macroImpl` annotation with synthetic content that carries the payload described in `MacroImplBinding`.

     Macro def -> macro impl bindings are serialized into a `macroImpl` annotation with synthetic content that carries the payload described in `MacroImplBinding`.

     For example, for a pair of macro definition and macro implementation: def impl(c: scala.reflect.macros.blackbox.Context): c.Expr[Unit] = ??? def foo: Unit = macro impl

     We will have the following annotation added on the macro definition `foo`:

     Definition Classes
       Macros
118.  def macroExpand(typer: Typer, expandee: Global.Tree, mode: Mode, pt: Global.Type): Global.Tree

     Expands a term macro used in apply role as `M(2)(3)` in `val x = M(2)(3)`.

     Expands a term macro used in apply role as `M(2)(3)` in `val x = M(2)(3)`.

     Definition Classes
       Macros
     See also

       DefMacroExpander

119.  def macroExpandAll(typer: Typer, expandee: Global.Tree): Global.Tree

     Performs macro expansion on all subtrees of a given tree.

     Performs macro expansion on all subtrees of a given tree. Innermost macros are expanded first, outermost macros are expanded last. See the documentation for `macroExpand` for more information.

     Definition Classes
       Macros
120.  def macroExpandWithRuntime(typer: Typer, expandee: Global.Tree, runtime: MacroRuntime): MacroStatus

     Expands a macro when a runtime (i.e.

     Expands a macro when a runtime (i.e. the macro implementation) can be successfully loaded Meant for internal use within the macro infrastructure, don't use it elsewhere.

     Definition Classes
       Macros
121.  def macroExpandWithoutRuntime(typer: Typer, expandee: Global.Tree): MacroStatus

     Expands a macro when a runtime (i.e.

     Expands a macro when a runtime (i.e. the macro implementation) cannot be loaded Meant for internal use within the macro infrastructure, don't use it elsewhere.

     Definition Classes
       Macros
122.  def macroExpandee(tree: Global.Tree): Global.Tree

     Returns the original tree of the macro expansion if the argument is a macro expansion or EmptyTree otherwise.

     Returns the original tree of the macro expansion if the argument is a macro expansion or EmptyTree otherwise.

     Definition Classes
       StdAttachments
123.  def macroExpanderAttachment(tree: Global.Tree): MacroExpanderAttachment

     Loads underlying MacroExpanderAttachment from a macro expandee or returns a default value for that attachment.

     Loads underlying MacroExpanderAttachment from a macro expandee or returns a default value for that attachment.

     Definition Classes
       StdAttachments
124.  final def macroLogLite(msg: ⇒ Any): Unit
     Definition Classes
       Traces
     Annotations
       @inline()
125.  final def macroLogVerbose(msg: ⇒ Any): Unit
     Definition Classes
       Traces
     Annotations
       @inline()
126.  def macroRuntime(expandee: Global.Tree): MacroRuntime

     Produces a function that can be used to invoke macro implementation for a given macro definition: 1) Looks up macro implementation symbol in this universe.

     Produces a function that can be used to invoke macro implementation for a given macro definition: 1) Looks up macro implementation symbol in this universe. 2) Loads its enclosing class from the macro classloader. 3) Loads the companion of that enclosing class from the macro classloader. 4) Resolves macro implementation within the loaded companion.

     returns

       Requested runtime if macro implementation can be loaded successfully from either of the mirrors, `null` otherwise.

     Definition Classes
       MacroRuntimes
127.  def makeNamedTypes(syms: List[Global.Symbol]): collection.immutable.List[Global.NamedType]
     Definition Classes
       NamesDefaults
128.  def markDynamicRewrite(tree: Global.Tree): Global.Tree
     Definition Classes
       StdAttachments
129.  def markMacroImplRef(tree: Global.Tree): Global.Tree

     Marks the tree as a macro impl reference, which is a naked reference to a method.

     Marks the tree as a macro impl reference, which is a naked reference to a method.

     This is necessary for typechecking macro impl references (see `DefaultMacroCompiler.defaultResolveMacroImpl`), because otherwise typing a naked reference will result in the "follow this method with `_` if you want to treat it as a partially applied function" errors.

     This mark suppresses adapt except for when the annottee is a macro application.

     Definition Classes
       StdAttachments
130.  def memberWildcardType(name: Global.Name, tp: Global.Type): Global.Type

     A constructor for types ?{ def/type name: tp }, used in infer view to member searches.

     A constructor for types ?{ def/type name: tp }, used in infer view to member searches.

     Definition Classes
       Implicits
131.  def minimizeParents(parents: List[Global.Type]): List[Global.Type]
     Definition Classes
       Erasure
132.  def missingParams[T](args: List[T], params: List[Global.Symbol], argName: (T) ⇒ Option[Global.Name]): (List[Global.Symbol], Boolean)

     Returns the parameter symbols of an invocation expression that are not defined by the list of arguments.

     Returns the parameter symbols of an invocation expression that are not defined by the list of arguments.

     args

       The list of arguments

     params

       The list of parameter symbols of the invoked method

     argName

       A function that extracts the name of an argument expression, if it is a named argument.

     Definition Classes
       NamesDefaults
133.  final def ne(arg0: AnyRef): Boolean
     Definition Classes
       AnyRef
134.  def needsJavaSig(tp: Global.Type, throwsArgs: List[Global.Type]): Boolean
     Definition Classes
       Erasure
135.  def newNamer(context: Context): Namer
     Definition Classes
       Namers
136.  def newPhase(prev: nsc.Phase): StdPhase

     Create a new phase which applies transformer

     Create a new phase which applies transformer

     Definition Classes
       InfoTransform → Transform → SubComponent
137.  def newTransformer(unit: Global.CompilationUnit): Global.Transformer

     The transformer factory

     The transformer factory

     Definition Classes
       Erasure → Transform
138.  def newTyper(context: Context): Eraser
     Definition Classes
       Erasure → Typers
139.  def noPrintAdapt(tree1: Global.Tree, tree2: Global.Tree): Boolean
     Definition Classes
       TypersTracking
140.  def noPrintTyping(t: Global.Tree): Boolean
     Definition Classes
       TypersTracking
141.  def normalize(tp: Global.Type): Global.Type

     Automatically perform the following conversions on expression types: A method type becomes the corresponding function type.

     Automatically perform the following conversions on expression types: A method type becomes the corresponding function type. A nullary method type becomes its result type. Implicit parameters are skipped. This method seems to be performance critical.

     Definition Classes
       Infer
142.  def notAnyRefMessage(found: Global.Type): String
     Definition Classes
       ContextErrors
143.  final def notify(): Unit
     Definition Classes
       AnyRef
144.  final def notifyAll(): Unit
     Definition Classes
       AnyRef
145.  def notifyUndetparamsAdded(newUndets: List[Global.Symbol]): Unit
     Definition Classes
       Macros
146.  def notifyUndetparamsInferred(undetNoMore: List[Global.Symbol], inferreds: List[Global.Type]): Unit
     Definition Classes
       Macros
147.  def numericConversion(tree: Global.Tree, numericSym: Global.Symbol): Global.Tree
     Definition Classes
       Erasure
148.  def onTreeCheckerError(pos: Global.Position, msg: String): Unit
     Attributes
       protected
     Definition Classes
       Contexts
149.  def openMacros: collection.immutable.List[reflect.macros.contexts.Context { val universe: scala.tools.nsc.Global.erasure.global.type }]
     Definition Classes
       Macros
150.  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
151.  val phaseName: String
     Definition Classes
       Erasure → SubComponent
152.  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
153.  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
154.  def pluginsEnsureCompanionObject(namer: Namer, cdef: Global.ClassDef, creator: (Global.ClassDef) ⇒ Global.Tree = companionModuleDef(_)): Global.Symbol

     Definition Classes
       AnalyzerPlugins
     See also

       MacroPlugin.pluginsEnsureCompanionObject

155.  def pluginsEnterStats(typer: Typer, stats: List[Global.Tree]): List[Global.Tree]

     Definition Classes
       AnalyzerPlugins
     See also

       MacroPlugin.pluginsEnterStats

156.  def pluginsEnterSym(namer: Namer, tree: Global.Tree): Context

     Definition Classes
       AnalyzerPlugins
     See also

       MacroPlugin.pluginsEnterSym

157.  def pluginsIsBlackbox(macroDef: Global.Symbol): Boolean

     Definition Classes
       AnalyzerPlugins
     See also

       MacroPlugin.pluginsIsBlackbox

158.  def pluginsMacroArgs(typer: Typer, expandee: Global.Tree): MacroArgs

     Definition Classes
       AnalyzerPlugins
     See also

       MacroPlugin.pluginsMacroArgs

159.  def pluginsMacroExpand(typer: Typer, expandee: Global.Tree, mode: Mode, pt: Global.Type): Global.Tree

     Definition Classes
       AnalyzerPlugins
     See also

       MacroPlugin.pluginsMacroExpand

160.  def pluginsMacroRuntime(expandee: Global.Tree): MacroRuntime

     Definition Classes
       AnalyzerPlugins
     See also

       MacroPlugin.pluginsMacroRuntime

161.  def pluginsPt(pt: Global.Type, typer: Typer, tree: Global.Tree, mode: Mode): Global.Type

     Definition Classes
       AnalyzerPlugins
     See also

       AnalyzerPlugin.pluginsPt

162.  def pluginsTypeSig(tpe: Global.Type, typer: Typer, defTree: Global.Tree, pt: Global.Type): Global.Type

     Definition Classes
       AnalyzerPlugins
     See also

       AnalyzerPlugin.pluginsTypeSig

163.  def pluginsTypeSigAccessor(tpe: Global.Type, typer: Typer, tree: Global.ValDef, sym: Global.Symbol): Global.Type

     Definition Classes
       AnalyzerPlugins
     See also

       AnalyzerPlugin.pluginsTypeSigAccessor

164.  def pluginsTyped(tpe: Global.Type, typer: Typer, tree: Global.Tree, mode: Mode, pt: Global.Type): Global.Type

     Definition Classes
       AnalyzerPlugins
     See also

       AnalyzerPlugin.pluginsTyped

165.  def pluginsTypedMacroBody(typer: Typer, ddef: Global.DefDef): Global.Tree

     Definition Classes
       AnalyzerPlugins
     See also

       MacroPlugin.pluginsTypedMacroBody

166.  def pluginsTypedReturn(tpe: Global.Type, typer: Typer, tree: Global.Return, pt: Global.Type): Global.Type

     Definition Classes
       AnalyzerPlugins
     See also

       AnalyzerPlugin.pluginsTypedReturn

167.  def popMacroContext(): Unit
     Definition Classes
       Macros
168.  def posPrecedes(p1: Global.Position, p2: Global.Position): Boolean

     Does the positioned line assigned to t1 precede that of t2?

     Does the positioned line assigned to t1 precede that of t2?

     Definition Classes
       TypeDiagnostics
169.  val prepareSigMap: Global.TypeMap { def squashBoxed(tp: scala.tools.nsc.Global.erasure.global.Type): scala.tools.nsc.Global.erasure.global.Type }

     This object is only used for sanity testing when -check:genjvm is set.

     This object is only used for sanity testing when -check:genjvm is set. In that case we make sure that the erasure of the `normalized` type is the same as the erased type that's generated. Normalization means unboxing some primitive types and further simplifications as they are done in jsig.

     Definition Classes
       Erasure
170.  def printingOk(t: Global.Tree): Boolean
     Definition Classes
       TypersTracking
171.  def propagateKnownTypes(from: Global.Type, to: Global.Symbol): Global.Type

     The applied type of class 'to' after inferring anything possible from the knowledge that 'to' must also be of the type given in 'from'.

     The applied type of class 'to' after inferring anything possible from the knowledge that 'to' must also be of the type given in 'from'.

     Definition Classes
       Checkable
172.  def pushMacroContext(c: MacroContext): Unit
     Definition Classes
       Macros
173.  def rebindInnerClass(pre: Global.Type, cls: Global.Symbol): Global.Type
     Attributes
       protected
     Definition Classes
       Erasure
174.  final def recursivelyFinal(tpe: Global.Type): Boolean
     Definition Classes
       TypeDiagnostics
     Annotations
       @tailrec()
175.  def removeNames(typer: Typer)(args: List[Global.Tree], params: List[Global.Symbol]): (List[Global.Tree], Array[Int])

     Removes name assignments from args.

     Removes name assignments from args. Additionally, returns an array mapping argument indices from call-site-order to definition-site-order.

     Verifies that names are not specified twice, and positional args don't appear after named ones.

     Definition Classes
       NamesDefaults
176.  def reorderArgs[T](args: List[T], pos: (Int) ⇒ Int)(implicit arg0: ClassTag[T]): List[T]

     pos

       maps indices from old to new

     Definition Classes
       NamesDefaults
177.  val requires: List[String]

     Names of phases required by this component.

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

     Definition Classes
       SubComponent
178.  def resetContexts(): Unit
     Definition Classes
       Contexts
179.  def resetDocComments(): Unit
     Definition Classes
       Typers
180.  def resetImplicits(): Unit
     Definition Classes
       Implicits
181.  def resetTyper(): Unit
     Definition Classes
       Typers
182.  final def resolveAnonymousBridgeClash(sym: Global.Symbol, bridge: Global.Symbol): Unit
     Definition Classes
       Erasure
183.  def restrictionError(pos: Global.Position, unit: Global.CompilationUnit, msg: String): Unit
     Definition Classes
       TypeDiagnostics
184.  def restrictionWarning(pos: Global.Position, unit: Global.CompilationUnit, msg: String): Unit

     For errors which are artifacts of the implementation: such messages indicate that the restriction may be lifted in the future.

     For errors which are artifacts of the implementation: such messages indicate that the restriction may be lifted in the future.

     Definition Classes
       TypeDiagnostics
185.  def rootContext(unit: Global.CompilationUnit, tree: Global.Tree = EmptyTree, throwing: Boolean = false, checking: Boolean = false): Context
     Definition Classes
       Contexts
186.  def rootContextPostTyper(unit: Global.CompilationUnit, tree: Global.Tree = EmptyTree): Context
     Definition Classes
       Contexts
187.  def rootImports(unit: Global.CompilationUnit): List[Global.Symbol]

     List of symbols to import from in a root context.

     List of symbols to import from in a root context. Typically that is `java.lang`, `scala`, and scala.Predef, in that order. Exceptions:

     - if option `-Yno-imports` is given, nothing is imported
     - if the unit is java defined, only `java.lang` is imported
     - if option `-Yno-predef` is given, if the unit body has an import of Predef among its leading imports, or if the tree is scala.Predef, `Predef` is not imported.
     Attributes
       protected
     Definition Classes
       Contexts
188.  val runsAfter: collection.immutable.List[String]
     Definition Classes
       erasure → SubComponent
189.  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
190.  val runsRightAfter: Some[String]
     Definition Classes
       erasure → SubComponent
191.  def setAddendum(pos: Global.Position, msg: () ⇒ String): Unit
     Definition Classes
       TypeDiagnostics
192.  final val shortenImports: Boolean(false)
     Definition Classes
       Typers
193.  def skipImplicit(tp: Global.Type): Global.Type
     Definition Classes
       Infer
194.  def solvedTypes(tvars: List[Global.TypeVar], tparams: List[Global.Symbol], variances: List[Variance], upper: Boolean, depth: Depth): List[Global.Type]

     Solve constraint collected in types `tvars`.

     Solve constraint collected in types `tvars`.

     tvars

       All type variables to be instantiated.

     tparams

       The type parameters corresponding to `tvars`

     variances

       The variances of type parameters; need to reverse solution direction for all contravariant variables.

     upper

       When `true` search for max solution else min.

     Definition Classes
       Infer
     Exceptions thrown
195.  def specialConstructorErasure(clazz: Global.Symbol, tpe: Global.Type): Global.Type
     Definition Classes
       Erasure
196.  def specialErasure(sym: Global.Symbol)(tp: Global.Type): Global.Type
     Definition Classes
       Erasure
197.  def standardIsBlackbox(macroDef: Global.Symbol): Boolean

     Default implementation of `isBlackbox`.

     Default implementation of `isBlackbox`. Can be overridden by analyzer plugins (see AnalyzerPlugins.pluginsIsBlackbox for more details)

     Definition Classes
       Macros
198.  def standardMacroArgs(typer: Typer, expandee: Global.Tree): MacroArgs

     Default implementation of `macroArgs`.

     Default implementation of `macroArgs`. Can be overridden by analyzer plugins (see AnalyzerPlugins.pluginsMacroArgs for more details)

     Definition Classes
       Macros
199.  def standardMacroExpand(typer: Typer, expandee: Global.Tree, mode: Mode, pt: Global.Type): Global.Tree

     Default implementation of `macroExpand`.

     Default implementation of `macroExpand`. Can be overridden by analyzer plugins (see AnalyzerPlugins.pluginsMacroExpand for more details)

     Definition Classes
       Macros
200.  def standardMacroRuntime(expandee: Global.Tree): MacroRuntime
     Definition Classes
       MacroRuntimes
201.  def standardTypedMacroBody(typer: Typer, macroDdef: Global.DefDef): Global.Tree

     Default implementation of `typedMacroBody`.

     Default implementation of `typedMacroBody`. Can be overridden by analyzer plugins (see AnalyzerPlugins.pluginsTypedMacroBody for more details)

     Definition Classes
       Macros
202.  def superArgs(tree: Global.Tree): Option[List[List[Global.Tree]]]

     Convenience method for `SuperArgsAttachment`.

     Convenience method for `SuperArgsAttachment`. Compared with `MacroRuntimeAttachment` this attachment has different a usage pattern, so it really benefits from a dedicated extractor.

     Definition Classes
       StdAttachments
203.  def suppressMacroExpansion(tree: Global.Tree): Global.Tree

     Suppresses macro expansion of the tree by putting SuppressMacroExpansionAttachment on it.

     Suppresses macro expansion of the tree by putting SuppressMacroExpansionAttachment on it.

     Definition Classes
       StdAttachments
204.  final def synchronized[T0](arg0: ⇒ T0): T0
     Definition Classes
       AnyRef
205.  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
206.  def toString(): String
     Definition Classes
       AnyRef → Any
207.  def tpe_s(tp: Global.Type, colorize: (String) ⇒ String): String
     Definition Classes
       TypersTracking
208.  def transformInfo(sym: Global.Symbol, tp: Global.Type): Global.Type
     Definition Classes
       Erasure
209.  def transformNamedApplication(typer: Typer, mode: Mode, pt: Global.Type)(tree: Global.Tree, argPos: (Int) ⇒ Int): Global.Tree

     Transform a function application into a Block, and assigns typer.context .namedApplyBlockInfo to the new block as side-effect.

     Transform a function application into a Block, and assigns typer.context .namedApplyBlockInfo to the new block as side-effect. If tree has the form Apply(fun, args) first the function "fun" (which might be an application itself!) is transformed into a block of the form { val qual$1 = qualifier_of_fun val x$1 = arg_1_of_fun ... val x$n = arg_n_of_fun qual$1.fun[targs](x$1, ...)...(..., x$n) } then for each argument in args, a value is created and entered into the block. finally the application expression of the block is updated. { val qual$1 = .. ... val x$n = ... > val qual$n+1 = arg(1) > ... > val qual$n+m = arg(m) > qual$1.fun[targs](x$1, ...)...(..., x$n)(x$n+1, ..., x$n+m) }

     typer

       the typer calling this method; this method calls typer.doTypedApply

     mode

       the mode to use for calling typer.doTypedApply

     pt

       the expected type for calling typer.doTypedApply

     returns

       the transformed application (a Block) together with the NamedApplyInfo. if isNamedApplyBlock(tree), returns the existing context.namedApplyBlockInfo

     Definition Classes
       NamesDefaults
210.  def transformTypeTagEvidenceParams(macroImplRef: Global.Tree, transform: (Global.Symbol, Global.Symbol) ⇒ Global.Symbol): List[List[Global.Symbol]]

     Transforms parameters lists of a macro impl.

     Transforms parameters lists of a macro impl. The `transform` function is invoked only for WeakTypeTag evidence parameters.

     The transformer takes two arguments: a value parameter from the parameter list and a type parameter that is witnesses by the value parameter.

     If the transformer returns a NoSymbol, the value parameter is not included from the result. If the transformer returns something else, this something else is included in the result instead of the value parameter.

     Despite of being highly esoteric, this function significantly simplifies signature analysis. For example, it can be used to strip macroImpl.paramss from the evidences (necessary when checking def <-> impl correspondence) or to streamline creation of the list of macro arguments.

     Definition Classes
       Helpers
211.  val transformed: AnyRefMap[Global.Tree, Global.Tree]
     Definition Classes
       Typers
212.  def treeSymTypeMsg(tree: Global.Tree): String
     Definition Classes
       TypeDiagnostics
213.  def typePatternAdvice(sym: Global.Symbol, ptSym: Global.Symbol): String
     Definition Classes
       TypeDiagnostics
214.  def typedMacroBody(typer: Typer, macroDdef: Global.DefDef): Global.Tree

     Verifies that the body of a macro def typechecks to a reference to a static public non-overloaded method or a top-level macro bundle, and that that method is signature-wise compatible with the given macro definition.

     Verifies that the body of a macro def typechecks to a reference to a static public non-overloaded method or a top-level macro bundle, and that that method is signature-wise compatible with the given macro definition.

     returns

       Macro impl reference for the given macro definition if everything is okay. EmptyTree if an error occurs.

     Definition Classes
       Macros
215.  def typingInPattern[T](body: ⇒ T): T

     Devising new ways of communicating error info out of desperation to work on error messages.

     Devising new ways of communicating error info out of desperation to work on error messages. This is used by typedPattern to wrap its business so we can generate a sensible error message when things go south.

     Definition Classes
       TypeDiagnostics
216.  def unapplyMember(tp: Global.Type): Global.Symbol

     Filters out unapplies with multiple (non-implicit) parameter lists, as they cannot be used as extractors

     Filters out unapplies with multiple (non-implicit) parameter lists, as they cannot be used as extractors

     Definition Classes
       Unapplies
217.  def unboundedGenericArrayLevel(tp: Global.Type): Int
     Attributes
       protected
     Definition Classes
       Erasure
218.  def underlyingSymbol(member: Global.Symbol): Global.Symbol

     The symbol which the given accessor represents (possibly in part).

     The symbol which the given accessor represents (possibly in part). This is used for error messages, where we want to speak in terms of the actual declaration or definition, not in terms of the generated setters and getters.

     TODO: is it wise to create new symbols simply to generate error message? is this safe in interactive/resident mode?

     Definition Classes
       TypeDiagnostics
219.  def unmarkDynamicRewrite(tree: Global.Tree): Global.Tree
     Definition Classes
       StdAttachments
220.  def unmarkMacroImplRef(tree: Global.Tree): Global.Tree

     Unmarks the tree as a macro impl reference (see `markMacroImplRef` for more information).

     Unmarks the tree as a macro impl reference (see `markMacroImplRef` for more information).

     This is necessary when a tree that was previously deemed to be a macro impl reference, typechecks to be a macro application. Then we need to unmark it, expand it and try to treat its expansion as a macro impl reference.

     Definition Classes
       StdAttachments
221.  def unsuppressMacroExpansion(tree: Global.Tree): Global.Tree

     Unsuppresses macro expansion of the tree by removing SuppressMacroExpansionAttachment from it and its children.

     Unsuppresses macro expansion of the tree by removing SuppressMacroExpansionAttachment from it and its children.

     Definition Classes
       StdAttachments
222.  def untypeMetalevel(tp: Global.Type): Global.Type

     Transforms c.Expr[T] types into c.Tree and leaves the rest unchanged.

     Transforms c.Expr[T] types into c.Tree and leaves the rest unchanged.

     Definition Classes
       Helpers
223.  def valueClassIsParametric(clazz: Global.Symbol): Boolean
     Definition Classes
       Erasure
224.  def verifyJavaErasure: Boolean
     Attributes
       protected
     Definition Classes
       Erasure → Erasure
225.  final def wait(): Unit
     Definition Classes
       AnyRef
     Annotations
       @throws( ... )
226.  final def wait(arg0: Long, arg1: Int): Unit
     Definition Classes
       AnyRef
     Annotations
       @throws( ... )
227.  final def wait(arg0: Long): Unit
     Definition Classes
       AnyRef
     Annotations
       @throws( ... )
228.  def warnUnusedImports(unit: Global.CompilationUnit): Unit
     Definition Classes
       Contexts
229.  def withAddendum(pos: Global.Position): (String) ⇒ String
     Definition Classes
       TypeDiagnostics
230.  def withDisambiguation[T](locals: List[Global.Symbol], types: Global.Type*)(op: ⇒ T): T

     Given any number of types, alters the name information in the symbols until they can be distinguished from one another: then executes the given code.

     Given any number of types, alters the name information in the symbols until they can be distinguished from one another: then executes the given code. The names are restored and the result is returned.

     Definition Classes
       TypeDiagnostics
231.  object GenericArray
     Definition Classes
       Erasure
232.  object javaErasure extends JavaErasureMap
     Definition Classes
       Erasure
233.  object scalaErasure extends ScalaErasureMap
     Definition Classes
       Erasure
234.  object specialScalaErasure extends ScalaErasureMap
     Definition Classes
       Erasure
235.  object CODE
     Definition Classes
       TreeDSL
236.  object mixinTransformer extends Global.Transformer
     Definition Classes
       Erasure
237.  object namerFactory extends SubComponent
     Definition Classes
       Analyzer
238.  object packageObjects extends SubComponent
     Definition Classes
       Analyzer
239.  object typerFactory extends SubComponent
     Definition Classes
       Analyzer
240.  object ErrorUtils
     Definition Classes
       ContextErrors
241.  object NamesDefaultsErrorsGen
     Definition Classes
       ContextErrors
242.  object NoContext extends Analyzer.Context
     Definition Classes
       Contexts
243.  object Function1

     An extractor for unary function types arg => res

     An extractor for unary function types arg => res

     Definition Classes
       Implicits
244.  object HasMember

     An extractor for types of the form ? { name: ? }

     An extractor for types of the form ? { name: ? }

     Definition Classes
       Implicits
245.  object HasMethodMatching

     An extractor for types of the form ? { name: (? >: argtpe <: Any*)restp }

     An extractor for types of the form ? { name: (? >: argtpe <: Any*)restp }

     Definition Classes
       Implicits
246.  object ImplicitAmbiguousMsg extends Analyzer.ImplicitAnnotationMsg
     Definition Classes
       Implicits
247.  object ImplicitNotFoundMsg extends Analyzer.ImplicitAnnotationMsg
     Definition Classes
       Implicits
248.  object instantiate extends Global.TypeMap

     Map every TypeVar to its constraint.inst field.

     Map every TypeVar to its constraint.inst field. throw a NoInstance exception if a NoType or WildcardType is encountered.

     Definition Classes
       Infer
249.  object MacroImplBinding extends Serializable
     Definition Classes
       Macros
250.  object DynamicRewriteAttachment extends Product with Serializable

     Since mkInvoke, the applyDynamic/selectDynamic/etc desugarer, is disconnected from typedNamedApply, the applyDynamicNamed argument rewriter, the latter doesn’t know whether it needs to apply the rewriting because the application has just been desugared or it needs to hold on because it’s already performed a desugaring on this tree.

     Since mkInvoke, the applyDynamic/selectDynamic/etc desugarer, is disconnected from typedNamedApply, the applyDynamicNamed argument rewriter, the latter doesn’t know whether it needs to apply the rewriting because the application has just been desugared or it needs to hold on because it’s already performed a desugaring on this tree. This has led to SI-8006.

     This attachment solves the problem by providing a means of communication between the two Dynamic desugarers, which solves the aforementioned issue.

     Definition Classes
       StdAttachments
251.  object MacroImplRefAttachment extends Product with Serializable

     Definition Classes
       StdAttachments
     See also

       markMacroImplRef

252.  object SuppressMacroExpansionAttachment extends Product with Serializable

     When present, suppresses macro expansion for the host.

     When present, suppresses macro expansion for the host. This is occasionally necessary, e.g. to prohibit eta-expansion of macros.

     Does not affect expandability of child nodes, there's context.withMacrosDisabled for that (but think thrice before using that API - see the discussion at https://github.com/scala/scala/pull/1639).

     Definition Classes
       StdAttachments
253.  object SilentTypeError
     Definition Classes
       Typers
254.  object typingStack
     Definition Classes
       TypersTracking
255.  object HasUnapply
     Definition Classes
       Unapplies

### Deprecated Value Members

1.  def inferImplicit(tree: Global.Tree, pt: Global.Type, reportAmbiguous: Boolean, isView: Boolean, context: Context, saveAmbiguousDivergent: Boolean): SearchResult
   Definition Classes
     Implicits
   Annotations
     @deprecated
   Deprecated

     (Since version 2.12.0-M4) Unused in scalac

2.  def inferImplicit(tree: Global.Tree, pt: Global.Type, reportAmbiguous: Boolean, isView: Boolean, context: Context): SearchResult
   Definition Classes
     Implicits
   Annotations
     @deprecated
   Deprecated

     (Since version 2.12.0-M4) Unused in scalac

3.  def mkTypeCompleter(t: Global.Tree)(c: (Global.Symbol) ⇒ Unit): TypeCompleterBase[Global.Tree]
   Definition Classes
     Namers
   Annotations
     @deprecated
   Deprecated

     (Since version 2.12.2) Instantiate TypeCompleterBase (for monomorphic, non-wrapping completer) or CompleterWrapper directly.

### Inherited from Erasure

### Inherited from TypeAdaptingTransformer

### Inherited from TypingTransformers

### Inherited from Analyzer

### Inherited from AnalyzerPlugins

### Inherited from StdAttachments

### Inherited from ContextErrors

### Inherited from TypeDiagnostics

### Inherited from NamesDefaults

### Inherited from Macros

### Inherited from Helpers

### Inherited from Traces

### Inherited from MacroRuntimes

### Inherited from JavaReflectionRuntimes

### Inherited from Unapplies

### Inherited from SyntheticMethods

### Inherited from TreeDSL

### Inherited from EtaExpansion

### Inherited from Implicits

### Inherited from Infer

### Inherited from Checkable

### Inherited from Typers

### Inherited from PatternTypers

### Inherited from TypersTracking

### Inherited from Tags

### Inherited from Adaptations

### Inherited from Namers

### Inherited from MethodSynthesis

### Inherited from Contexts

### Inherited from Erasure

### Inherited from InfoTransform

### Inherited from Transform

### Inherited from SubComponent

### Inherited from AnyRef

### Inherited from Any

### Ungrouped