Scala Compiler2.13.0 < 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 Closeable 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
- ArrayValue
- AsSeenFromMap
- Assign
- Assign
- AssignApi
- AssignExtractor
- Attachable
- BackquotedIdentifierAttachment
- BaseTypeSeq
- Bind
- Bind
- BindApi
- BindExtractor
- Block
- Block
- BlockApi
- BlockExtractor
- BooleanFlag
- BooleanFlag
- BoundedWildcardType
- BoundedWildcardType
- BoundedWildcardTypeApi
- BoundedWildcardTypeExtractor
- CannotHaveAttrs
- CaseDef
- CaseDef
- CaseDefApi
- CaseDefExtractor
- ChangeOwnerTraverser
- ChildSolidDescendantsCollector
- 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
- ConstructorNeedsFence
- ContainsAnyCollector
- ContainsAnyKeyCollector
- 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
- ExistsTypeRefCollector
- ExpansionLimitExceeded
- Expr
- Expr
- FieldMirror
- FilterTreeTraverser
- FilterTypeCollector
- FindTreeTraverser
- FindTypeCollector
- FixedMirrorTreeCreator
- FixedMirrorTypeCreator
- Flag
- FlagAgnosticCompleter
- FlagAssigningCompleter
- FlagOps
- FlagValues
- FoldableConstantType
- FoldableConstantType
- ForEachTypeTraverser
- ForeachPartialTreeTraverser
- ForeachTreeTraverser
- FreeSymbol
- FreeTermSymbol
- FreeTermSymbolApi
- FreeTypeSymbol
- FreeTypeSymbolApi
- FreshNameExtractor
- Function
- Function
- FunctionApi
- FunctionExtractor
- GenPolyType
- GenericApply
- GenericApplyApi
- GlobalMirror
- GlobalPhase
- GlobalPlatform
- GlobalStats
- 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
- InternalTransformer
- InternalTraverser
- InternalTreeCopierOps
- JavaArgumentApi
- JavaKeywords
- KeepOnlyTypeConstraints
- Keywords
- Kind
- Kind
- KindErrors
- LabelDef
- LabelDef
- LabelDefApi
- LabelDefExtractor
- LazyAnnotationInfo
- LazyPolyType
- LazyTreeCopier
- LazyType
- Liftable
- Liftable
- Literal
- Literal
- LiteralAnnotArg
- LiteralApi
- LiteralExtractor
- LiteralType
- LiteralType
- LocalOwnersTraverser
- Locator
- LookupAmbiguous
- LookupInaccessible
- LookupNotFound
- LookupSucceeded
- MacroCompatApi
- MacroInternalApi
- MalformedType
- MappedBaseTypeSeq
- Match
- Match
- MatchApi
- MatchExtractor
- MemberDef
- MemberDefApi
- MemberScopeApi
- MethodMirror
- MethodSymbol
- MethodSymbolApi
- MethodType
- MethodType
- MethodTypeApi
- MethodTypeExtractor
- MethodValue
- Mirror
- MissingAliasControl
- MissingTypeControl
- Modifiers
- Modifiers
- ModifiersApi
- ModifiersExtractor
- ModuleClassSymbol
- ModuleDef
- ModuleDef
- ModuleDefApi
- ModuleDefExtractor
- ModuleMirror
- ModuleSymbol
- ModuleSymbolApi
- ModuleTypeRef
- Name
- NameApi
- NameLookup
- NameOps
- NameTree
- NameTreeApi
- NamedArg
- NamedArg
- NamedArgApi
- NamedArgExtractor
- NamedType
- NamesApi
- NestedAnnotArg
- New
- New
- NewApi
- NewExtractor
- NoArgsTypeRef
- NoCommonType
- NoCompilationUnit
- NoInlineCallsiteAttachment
- NoPrefix
- NoSymbol
- NoType
- NoWarnAttachment
- NonClassTypeRef
- NullaryMethodType
- NullaryMethodType
- NullaryMethodTypeApi
- NullaryMethodTypeExtractor
- OuterArgCanBeElided
- OverloadedArgProto
- OverloadedType
- PackageClassInfoType
- PackageClassSymbol
- PackageDef
- PackageDef
- PackageDefApi
- PackageDefExtractor
- PackageObjectClassSymbol
- PackageTypeRef
- Parens
- PatVarDefAttachment
- PerRunParsing
- PerRunReporting
- PerRunReportingBase
- PlainAttachment
- PolyType
- PolyType
- PolyTypeApi
- PolyTypeExtractor
- PosAssigner
- PostfixSelect
- ProperTypeKind
- ProtoType
- QualTypeSymAttachment
- Quasiquote
- RawTreePrinter
- RecoverableCyclicReference
- RefTree
- RefTree
- RefTreeApi
- RefTreeExtractor
- ReferenceToBoxed
- ReferenceToBoxed
- ReferenceToBoxedApi
- ReferenceToBoxedExtractor
- RefinedType
- RefinedType
- RefinedType0
- RefinedTypeApi
- RefinedTypeExtractor
- RefinementClassSymbol
- RefinementTypeRef
- ReflectStats
- ReflectiveMirror
- ReificationSupportApi
- ReificationSupportImpl
- RepeatedType
- Return
- Return
- ReturnApi
- ReturnExtractor
- RewrappingTypeProxy
- RootSymbol
- Roots
- RootsBase
- Run
- RunContextApi
- RunParsing
- RunReporting
- RuntimeClassApi
- RuntimeMirror
- SAMFunction
- 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
- TypeConKind
- TypeConstraint
- TypeDef
- TypeDef
- TypeDefApi
- TypeDefExtractor
- TypeError
- TypeFolder
- TypeMap
- TypeMapTreeSubstituter
- TypeName
- TypeName
- TypeNameApi
- TypeNameExtractor
- TypeNames
- TypeNamesApi
- TypeParamVarargsAttachment
- TypeRef
- TypeRef
- TypeRefApi
- TypeRefExtractor
- TypeSkolem
- TypeSymbol
- TypeSymbolApi
- TypeTag
- TypeTag
- TypeTraverser
- TypeTree
- TypeTree
- TypeTreeApi
- TypeTreeExtractor
- TypeTreeWithDeferredRefCheck
- TypeUnwrapper
- TypeVar
- TypeVar
- Typed
- Typed
- TypedApi
- TypedExtractor
- TypedLocator
- UnApply
- UnApply
- UnApplyApi
- UnApplyExtractor
- UndoLog
- UniqueConstantType
- UniqueErasedValueType
- UniqueLiteralType
- UniqueSingleType
- UniqueSuperType
- UniqueThisType
- UniqueType
- UniqueTypeBounds
- Unliftable
- UnmappableAnnotation
- UntouchableTypeVar
- UseCase
- UseInvokeSpecial
- ValDef
- ValDef
- ValDefApi
- ValDefExtractor
- ValOrDefDef
- ValOrDefDef
- ValOrDefDefApi
- ValidateException
- ValidatingPosAssigner
- ValueClassDefinitions
- VarianceValidator
- VariancedTypeMap
- 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, MacroAnnotationAttachments, 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

Ordering

1. Alphabetic
2. By Inheritance

Inherited

1. erasure
2. Erasure
3. TypeAdaptingTransformer
4. TypingTransformers
5. Analyzer
6. AnalyzerPlugins
7. MacroAnnotationAttachments
8. StdAttachments
9. ContextErrors
10. TypeDiagnostics
11. NamesDefaults
12. Macros
13. Helpers
14. Traces
15. MacroRuntimes
16. JavaReflectionRuntimes
17. Unapplies
18. SyntheticMethods
19. TreeDSL
20. EtaExpansion
21. Implicits
22. Infer
23. Checkable
24. Typers
25. PatternTypers
26. TypersTracking
27. Tags
28. Adaptations
29. Namers
30. MethodSynthesis
31. Contexts
32. Erasure
33. InfoTransform
34. Transform
35. SubComponent
36. AnyRef
37. 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 EnterBridges 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 GenerateBridges extends EnterBridges
    Definition Classes
      Erasure
15.  class UnknownSig extends Exception
    Definition Classes
      Erasure
16.  class Phase extends InfoTransform.Phase
    Definition Classes
      InfoTransform
17.  abstract class TypeAdapter extends AnyRef
    Definition Classes
      TypeAdaptingTransformer
18.  abstract class TypingTransformer extends Global.Transformer
    Definition Classes
      TypingTransformers
19.  trait Adaptation extends AnyRef
    Definition Classes
      Adaptations
20.  trait AnalyzerPlugin extends AnyRef
    Definition Classes
      AnalyzerPlugins
21.  trait MacroPlugin extends AnyRef

    Definition Classes
      AnalyzerPlugins
22.  trait InferCheckable extends AnyRef
    Definition Classes
      Checkable
23.  abstract class AbsAmbiguousTypeError extends Analyzer.AbsTypeError
    Definition Classes
      ContextErrors
24.  sealed abstract class AbsTypeError extends AnyRef
    Definition Classes
      ContextErrors
25.  case class AccessTypeError(underlyingTree: Global.Tree, errMsg: String) extends Analyzer.TreeTypeError with Product with Serializable
    Definition Classes
      ContextErrors
26.  case class AmbiguousImplicitTypeError(underlyingTree: Global.Tree, errMsg: String) extends Analyzer.AbsAmbiguousTypeError with Product with Serializable
    Definition Classes
      ContextErrors
27.  case class AmbiguousTypeError(errPos: Global.Position, errMsg: String) extends Analyzer.AbsAmbiguousTypeError with Product with Serializable
    Definition Classes
      ContextErrors
28.  case class DivergentImplicitTypeError(underlyingTree: Global.Tree, pt0: Global.Type, sym: Global.Symbol) extends Analyzer.TreeTypeError with Product with Serializable
    Definition Classes
      ContextErrors
29.  trait ImplicitsContextErrors extends AnyRef
    Definition Classes
      ContextErrors
30.  trait InferencerContextErrors extends AnyRef
    Definition Classes
      ContextErrors
31.  trait NamerContextErrors extends AnyRef
    Definition Classes
      ContextErrors
32.  case class NormalTypeError(underlyingTree: Global.Tree, errMsg: String) extends Analyzer.TreeTypeError with Product with Serializable
    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.  final case class AdjustedTypeArgs(okParams: List[Global.Symbol], okArgs: List[Global.Type], undetParams: List[Global.Symbol], allArgs: List[Global.Type]) extends Product with Serializable
    Definition Classes
      Infer
50.  abstract class Inferencer extends Analyzer.InferencerContextErrors with Analyzer.InferCheckable

    The context-dependent inferencer part

    The context-dependent inferencer part

    Definition Classes
      Infer
51.  class NoInstance extends ControlThrowable
    Definition Classes
      Infer
52.  case class CacheAttachment(cache: Map[String, Any]) extends Product with Serializable
    Definition Classes
      MacroAnnotationAttachments
53.  implicit class RichTree extends AnyRef
    Definition Classes
      MacroAnnotationAttachments
54.  case class SymbolCompleterAttachment(info: Global.Type) extends Product with Serializable
    Definition Classes
      MacroAnnotationAttachments
55.  case class SymbolExpansionAttachment(expansion: List[Global.Tree]) extends Product with Serializable
    Definition Classes
      MacroAnnotationAttachments
56.  case class SymbolSourceAttachment(source: Global.Tree) extends Product with Serializable
    Definition Classes
      MacroAnnotationAttachments
57.  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
58.  case class Delayed(delayed: Global.Tree) extends Analyzer.MacroStatus with Product with Serializable
    Definition Classes
      Macros
59.  case class Failure(failure: Global.Tree) extends Analyzer.MacroStatus with Product with Serializable
    Definition Classes
      Macros
60.  case class Fallback(fallback: Global.Tree) extends Analyzer.MacroStatus with Product with Serializable
    Definition Classes
      Macros
61.  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
62.  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
63.  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
64.  sealed abstract class MacroStatus extends AnyRef
    Definition Classes
      Macros
65.  case class Skipped(skipped: Global.Tree) extends Analyzer.MacroStatus with Product with Serializable
    Definition Classes
      Macros
66.  case class Success(expanded: Global.Tree) extends Analyzer.MacroStatus with Product with Serializable
    Definition Classes
      Macros
67.  class ClassMethodSynthesis extends AnyRef
    Definition Classes
      MethodSynthesis
68.  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
69.  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
70.  trait LockingTypeCompleter extends Analyzer.TypeCompleter
    Definition Classes
      Namers
71.  abstract class Namer extends Analyzer.MethodSynth with Analyzer.NamerContextErrors
    Definition Classes
      Namers
72.  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
73.  abstract class TypeCompleter extends Global.LazyType
    Definition Classes
      Namers
74.  abstract class TypeCompleterBase[T <: Global.Tree] extends Analyzer.TypeCompleter with Analyzer.LockingTypeCompleter with Global.FlagAgnosticCompleter
    Definition Classes
      Namers
75.  class CaseApplyDefaultGetters extends AnyRef
    Definition Classes
      NamesDefaults
76.  class ConstructorDefaultsAttachment extends AnyRef
    Definition Classes
      NamesDefaults
77.  class DefaultsOfLocalMethodAttachment extends AnyRef
    Definition Classes
      NamesDefaults
78.  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
79.  trait PatternTyper extends AnyRef
    Definition Classes
      PatternTypers
80.  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
81.  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
82.  case class MacroRuntimeAttachment(delayed: Boolean, typerContext: Analyzer.Context, macroContext: Option[Analyzer.MacroContext]) extends Product with Serializable
    Definition Classes
      StdAttachments
83.  case class OriginalTreeAttachment(original: Global.Tree) extends Product with Serializable

    Marks a tree that has been adapted by typer and sets the original tree that was in place before.

    Marks a tree that has been adapted by typer and sets the original tree that was in place before.

    Keeping track of the original trees were is an important feature for some compiler plugins (like Scalameta) and the incremental compiler (Zinc). In both cases, adapting trees loses information in some sense and do not allow external tools to capture some information stored in user-defined trees that are optimized away by early phases (mostly, typer).

    See how the absence of this attachment blocks Zinc: https://github.com/sbt/zinc/issues/227. Related: https://github.com/scala/scala-dev/issues/340.

    This attachment is, at the moment, only used to keep track of constant-folded constants. It has a generic wording in the hope that in the future can be reused in the same context to keep track of other adapted trees.

    Definition Classes
      StdAttachments
84.  case class StabilizingDefinitions(vdefs: List[Global.ValDef]) extends Product with Serializable
    Definition Classes
      StdAttachments
85.  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
86.  trait Tag extends AnyRef
    Definition Classes
      Tags
87.  case class TypeDiag(tp: Global.Type, sym: Global.Symbol) extends Ordered[(TypeDiagnostics.this)#TypeDiag] with Product with Serializable
    Definition Classes
      TypeDiagnostics
88.  trait TyperDiagnostics extends AnyRef
    Definition Classes
      TypeDiagnostics
89.  class checkUnused extends AnyRef
    Definition Classes
      TypeDiagnostics
90.  sealed abstract class SilentResult[+T] extends AnyRef
    Definition Classes
      Typers
91.  case class SilentResultValue[+T](value: T) extends Analyzer.SilentResult[T] with Product with Serializable
    Definition Classes
      Typers
92.  class SilentTypeError extends Analyzer.SilentResult[Nothing]
    Definition Classes
      Typers
93.  abstract class Typer extends Analyzer.TyperDiagnostics with Analyzer.Adaptation with Analyzer.Tag with Analyzer.PatternTyper with Analyzer.TyperContextErrors
    Definition Classes
      Typers
94.  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 SearchedPrefixImplicitInfo(pre: Global.Type): ImplicitInfo
    Definition Classes
      Implicits
14.  def Skip(expanded: Global.Tree): Skipped
    Definition Classes
      Macros
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.  final def accessibleOwnerOrParentDefiningMember(member: Global.Symbol, parents: Iterator[Global.Symbol], context: Context): Option[Global.Symbol]

    The goal of this method is to find a class that is accessible (in bytecode) and can be used to select `member`.

    The goal of this method is to find a class that is accessible (in bytecode) and can be used to select `member`. - For constructors, it returns the `member.owner`. We can assume the class is accessible: if it wasn't, the typer would have rejected the program, as the class is referenced in source. - For Scala-defined members it also returns `member.owner`, all Scala-defined classes are public in bytecode. - For Java-defined members we prefer a direct parent over of the owner, even if the owner is accessible. This way the owner doesn't need to be added as a direct parent, see scala-dev#143.

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

    Definition Classes
      AnalyzerPlugins
    See also

      AnalyzerPlugin.adaptAnnotations

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

    Registers a new analyzer plugin

    Registers a new analyzer plugin

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

    Registers a new macro plugin

    Registers a new macro plugin

    Definition Classes
      AnalyzerPlugins
22.  def addStabilizingDefinition(tree: Global.Tree, vdef: Global.ValDef): Global.Tree
    Definition Classes
      StdAttachments
23.  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
24.  final def afterOwnPhase[T](op: => T): T
    Definition Classes
      SubComponent
    Annotations
      @inline()
25.  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
26.  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
27.  def alternatives(tree: Global.Tree): List[Global.Type]
    Definition Classes
      TypeDiagnostics
28.  def alternativesString(tree: Global.Tree): String
    Definition Classes
      TypeDiagnostics
29.  def ambiguousDefnAndImport(owner: Global.Symbol, imp: ImportInfo): Global.LookupAmbiguous
    Definition Classes
      Contexts
30.  def ambiguousImports(imp1: ImportInfo, imp2: ImportInfo): Global.LookupAmbiguous
    Definition Classes
      Contexts
31.  final def asInstanceOf[T0]: T0
    Definition Classes
      Any
32.  def attachExpansion(sym: Global.Symbol, trees: List[Global.Tree]): Global.Symbol
    Definition Classes
      MacroAnnotationAttachments
33.  def attachSource(sym: Global.Symbol, tree: Global.Tree): Global.Symbol
    Definition Classes
      MacroAnnotationAttachments
34.  def attachedExpansion(sym: Global.Symbol): Option[List[Global.Tree]]
    Definition Classes
      MacroAnnotationAttachments
35.  def attachedSource(sym: Global.Symbol): Global.Tree
    Definition Classes
      MacroAnnotationAttachments
36.  def backupCompleter(sym: Global.Symbol): Global.Symbol
    Definition Classes
      MacroAnnotationAttachments
37.  final def beforeOwnPhase[T](op: => T): T
    Definition Classes
      SubComponent
    Annotations
      @inline()
38.  def bindMacroImpl(macroDef: Global.Symbol, macroImplRef: Global.Tree): Unit
    Definition Classes
      Macros
39.  def canAdaptAnnotations(tree: Global.Tree, typer: Typer, mode: Mode, pt: Global.Type): Boolean

    Definition Classes
      AnalyzerPlugins
    See also

      AnalyzerPlugin.canAdaptAnnotations

40.  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
41.  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 scala/bug#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
42.  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
43.  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
44.  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
45.  def changesBaseClasses: Boolean
    Attributes
      protected
    Definition Classes
      InfoTransform
46.  def clearDelayed(): Unit
    Definition Classes
      Macros
47.  final def clearRenamedCaseAccessors(caseclazz: Global.Symbol): Unit
    Definition Classes
      SyntheticMethods
48.  def clone(): AnyRef
    Attributes
      protected[java.lang]
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.CloneNotSupportedException]) @native()
49.  def companionModuleDef(cdef: Global.ClassDef, parents: List[Global.Tree] = Nil, body: List[Global.Tree] = Nil): Global.ModuleDef
    Definition Classes
      Unapplies
50.  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
51.  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
52.  def decodeWithKind(name: Global.Name, owner: Global.Symbol): String
    Definition Classes
      TypeDiagnostics
53.  val deconstMap: Global.TypeMap
    Definition Classes
      Erasure
54.  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

55.  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
56.  def defaultMacroClassloader: ClassLoader
    Definition Classes
      MacroRuntimes
57.  final def definesMemberAfterErasure(cls: Global.Symbol, member: Global.Symbol): Boolean

    Check if a class defines a member after erasure.

    Check if a class defines a member after erasure. The phase travel is important for `trait T extends AClass`: after erasure (and in bytecode), `T` has supertype `Object`, not `AClass`.

    Definition Classes
      Erasure
58.  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
59.  def disambiguate(ss: List[String]): collection.immutable.List[String]
    Definition Classes
      TypeDiagnostics
60.  def enabled: Boolean

    Is this component enabled? Default is true.

    Is this component enabled? Default is true.

    Definition Classes
      SubComponent
61.  def enclosingMacroPosition: reflect.internal.util.Position
    Definition Classes
      Macros
62.  final def eq(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef
63.  def equals(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef → Any
64.  def erasedValueClassArg(tref: Global.TypeRef): Global.Type
    Definition Classes
      Erasure
65.  def erasure(sym: Global.Symbol): ErasureMap
    Definition Classes
      Erasure
66.  def etaExpand(unit: Global.CompilationUnit, tree: Global.Tree, owner: Global.Symbol)(implicit creator: FreshNameCreator): Global.Tree

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

    Expand partial method application `p.f(es_1)...(es_n)`. Does not support dependent method types (yet).

    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 typedEtaExpansion, which itself is called from

    - instantiateToMethodType (for a naked method reference), or
    - typedEta (when type checking a method value, `m _`).
    Definition Classes
      EtaExpansion
67.  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
68.  val excludedRootImportsCached: HashMap[Global.CompilationUnit, List[Global.Symbol]]
    Definition Classes
      Contexts
69.  def existentialContext(tp: Global.Type): String
    Definition Classes
      TypeDiagnostics
70.  def explainAlias(tp: Global.Type): String
    Definition Classes
      TypeDiagnostics
71.  def explainAnyVsAnyRef(found: Global.Type, req: Global.Type): String
    Definition Classes
      TypeDiagnostics
72.  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
73.  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
74.  final def falseIfNoInstance(body: => Boolean): Boolean
    Definition Classes
      Infer
    Annotations
      @inline()
75.  lazy val fastTrack: FastTrack[Global.erasure.this.type]
    Definition Classes
      Macros
76.  def finalOwners(tpe: Global.Type): Boolean
    Definition Classes
      TypeDiagnostics
77.  def finalize(): Unit
    Attributes
      protected[java.lang]
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.Throwable])
78.  final def finishComputeParamAlias(): Unit

    Finish computation of param aliases after typechecking is completed

    Finish computation of param aliases after typechecking is completed

    Definition Classes
      Typers
79.  final def forArgMode(fun: Global.Tree, mode: Mode): reflect.internal.Mode
    Definition Classes
      Typers
80.  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
81.  def foundReqMsg(found: Global.Type, req: Global.Type): String
    Definition Classes
      TypeDiagnostics
82.  def freshNameCreatorFor(context: Context): FreshNameCreator
    Definition Classes
      Typers
83.  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
84.  def fullSiteString(context: Context): String
    Definition Classes
      TypersTracking
85.  final def getClass(): Class[_ <: AnyRef]
    Definition Classes
      AnyRef → Any
    Annotations
      @native()
86.  val global: Global.this.type

    The global environment; overridden by instantiation in Global.

    The global environment; overridden by instantiation in Global.

    Definition Classes
      erasure → TypingTransformers → Analyzer → TreeDSL → Erasure → SubComponent
87.  def globalSettings: Settings
    Definition Classes
      Macros → Traces
88.  def hasAttachedExpansion(sym: Global.Symbol): Boolean
    Definition Classes
      MacroAnnotationAttachments
89.  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
90.  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
91.  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
92.  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
93.  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

94.  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
95.  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 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 to NoPosition, then position-based services will use `tree.pos`

    returns

      A search result

    Definition Classes
      Implicits
96.  def inferImplicitByType(pt: Global.Type, context: Context, pos: Global.Position = NoPosition): SearchResult
    Definition Classes
      Implicits
97.  def inferImplicitByTypeSilent(pt: Global.Type, context: Context, pos: Global.Position = NoPosition): SearchResult
    Definition Classes
      Implicits
98.  def inferImplicitFor(pt: Global.Type, tree: Global.Tree, context: Context, reportAmbiguous: Boolean = true): SearchResult
    Definition Classes
      Implicits
99.  def inferImplicitView(from: Global.Type, to: Global.Type, tree: Global.Tree, context: Context, reportAmbiguous: Boolean, saveAmbiguousDivergent: Boolean): SearchResult
    Definition Classes
      Implicits
100.  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
101.  def instantiateSamFromFunction(funTp: Global.Type, samTp: Global.Type, sam: Global.Symbol): Global.Type
     Definition Classes
       Infer
102.  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
103.  def intersectionDominator(parents: List[Global.Type]): Global.Type
     Definition Classes
       Erasure
104.  def isBlackbox(macroDef: Global.Symbol): Boolean
     Definition Classes
       Macros
105.  def isBlackbox(expandee: Global.Tree): Boolean
     Definition Classes
       Macros
106.  def isDynamicRewrite(tree: Global.Tree): Boolean
     Definition Classes
       StdAttachments
107.  def isExpanded(sym: Global.Symbol): Boolean
     Definition Classes
       MacroAnnotationAttachments
108.  final def isInstanceOf[T0]: Boolean
     Definition Classes
       Any
109.  final def isJvmAccessible(cls: Global.Symbol, context: Context): Boolean
     Definition Classes
       Erasure
110.  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
111.  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
112.  def isMaybeExpandee(sym: Global.Symbol): Boolean
     Definition Classes
       MacroAnnotationAttachments
113.  def isNamedArg(arg: Global.Tree): Boolean
     Definition Classes
       NamesDefaults
114.  def isNotExpandable(sym: Global.Symbol): Boolean
     Definition Classes
       MacroAnnotationAttachments
115.  def isWeak(sym: Global.Symbol): Boolean
     Definition Classes
       MacroAnnotationAttachments
116.  final def javaSig(sym0: Global.Symbol, info: Global.Type, markClassUsed: (Global.Symbol) => Unit): 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
117.  def keepsTypeParams: Boolean
     Definition Classes
       Erasure → InfoTransform
118.  val lastAccessCheckDetails: String
     Definition Classes
       Contexts
119.  val lastTreeToTyper: Global.Tree
     Definition Classes
       TypersTracking
120.  def linePrecedes(t1: Global.Tree, t2: Global.Tree): Boolean
     Definition Classes
       TypeDiagnostics
121.  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
122.  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
123.  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
124.  def loadMacroImplBinding(macroDef: Global.Symbol): Option[MacroImplBinding]
     Definition Classes
       Macros
125.  def macroArgs(typer: Typer, expandee: Global.Tree): MacroArgs
     Definition Classes
       Macros
126.  def macroContext(typer: Typer, prefixTree: Global.Tree, expandeeTree: Global.Tree): MacroContext
     Definition Classes
       Macros
127.  val macroDebugLite: Boolean
     Definition Classes
       Traces
128.  val macroDebugVerbose: Boolean
     Definition Classes
       Traces
129.  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
130.  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

131.  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
132.  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
133.  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
134.  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
135.  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
136.  final def macroLogLite(msg: => Any): Unit
     Definition Classes
       Traces
     Annotations
       @inline()
137.  final def macroLogVerbose(msg: => Any): Unit
     Definition Classes
       Traces
     Annotations
       @inline()
138.  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
139.  def makeNamedTypes(syms: List[Global.Symbol]): collection.immutable.List[Global.NamedType]
     Definition Classes
       NamesDefaults
140.  def markDynamicRewrite(tree: Global.Tree): Global.Tree
     Definition Classes
       StdAttachments
141.  def markExpanded(sym: Global.Symbol): Global.Symbol
     Definition Classes
       MacroAnnotationAttachments
142.  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
143.  def markMaybeExpandee(sym: Global.Symbol): Global.Symbol
     Definition Classes
       MacroAnnotationAttachments
144.  def markNotExpandable(sym: Global.Symbol): Global.Symbol
     Definition Classes
       MacroAnnotationAttachments
145.  def markWeak(sym: Global.Symbol): Global.Symbol
     Definition Classes
       MacroAnnotationAttachments
146.  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
147.  def minimizeParents(cls: Global.Symbol, parents: List[Global.Type]): List[Global.Type]
     Definition Classes
       Erasure
148.  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
149.  final def ne(arg0: AnyRef): Boolean
     Definition Classes
       AnyRef
150.  def newNamer(context: Context): Namer
     Definition Classes
       Namers
151.  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
152.  def newTransformer(unit: Global.CompilationUnit): Global.Transformer

     The transformer factory

     The transformer factory

     Definition Classes
       Erasure → Transform
153.  def newTyper(context: Context): Eraser
     Definition Classes
       Erasure → Typers
154.  def noPrintAdapt(tree1: Global.Tree, tree2: Global.Tree): Boolean
     Definition Classes
       TypersTracking
155.  def noPrintTyping(t: Global.Tree): Boolean
     Definition Classes
       TypersTracking
156.  def notAnyRefMessage(found: Global.Type): String
     Definition Classes
       ContextErrors
157.  final def notify(): Unit
     Definition Classes
       AnyRef
     Annotations
       @native()
158.  final def notifyAll(): Unit
     Definition Classes
       AnyRef
     Annotations
       @native()
159.  def notifyUndetparamsAdded(newUndets: List[Global.Symbol]): Unit
     Definition Classes
       Macros
160.  def notifyUndetparamsInferred(undetNoMore: List[Global.Symbol], inferreds: List[Global.Type]): Unit
     Definition Classes
       Macros
161.  def numericConversion(tree: Global.Tree, numericSym: Global.Symbol): Global.Tree
     Definition Classes
       Erasure
162.  def onTreeCheckerError(pos: Global.Position, msg: String): Unit
     Attributes
       protected
     Definition Classes
       Contexts
163.  def openMacros: collection.immutable.List[reflect.macros.contexts.Context { val universe: scala.tools.nsc.Global.erasure.global.type }]
     Definition Classes
       Macros
164.  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
165.  val phaseName: String

     The name of the phase

     The name of the phase

     Definition Classes
       Erasure → SubComponent
166.  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
167.  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
168.  def pluginsEnsureCompanionObject(namer: Namer, cdef: Global.ClassDef, creator: (Global.ClassDef) => Global.Tree = companionModuleDef(_)): Global.Symbol

     Definition Classes
       AnalyzerPlugins
     See also

       MacroPlugin.pluginsEnsureCompanionObject

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

     Definition Classes
       AnalyzerPlugins
     See also

       MacroPlugin.pluginsEnterStats

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

     Definition Classes
       AnalyzerPlugins
     See also

       MacroPlugin.pluginsEnterSym

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

     Definition Classes
       AnalyzerPlugins
     See also

       MacroPlugin.pluginsIsBlackbox

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

     Definition Classes
       AnalyzerPlugins
     See also

       MacroPlugin.pluginsMacroArgs

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

     Definition Classes
       AnalyzerPlugins
     See also

       MacroPlugin.pluginsMacroExpand

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

     Definition Classes
       AnalyzerPlugins
     See also

       MacroPlugin.pluginsMacroRuntime

175.  def pluginsNotifyImplicitSearch(search: ImplicitSearch): Unit

     Definition Classes
       AnalyzerPlugins
     See also

       AnalyzerPlugin.pluginsImplicitSearch

176.  def pluginsNotifyImplicitSearchResult(result: SearchResult): Unit

     Definition Classes
       AnalyzerPlugins
     See also

       AnalyzerPlugin.pluginsImplicitSearchResult

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

     Definition Classes
       AnalyzerPlugins
     See also

       AnalyzerPlugin.pluginsPt

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

     Definition Classes
       AnalyzerPlugins
     See also

       AnalyzerPlugin.pluginsTypeSig

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

     Definition Classes
       AnalyzerPlugins
     See also

       AnalyzerPlugin.pluginsTypeSigAccessor

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

     Definition Classes
       AnalyzerPlugins
     See also

       AnalyzerPlugin.pluginsTyped

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

     Definition Classes
       AnalyzerPlugins
     See also

       MacroPlugin.pluginsTypedMacroBody

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

     Definition Classes
       AnalyzerPlugins
     See also

       AnalyzerPlugin.pluginsTypedReturn

183.  def popMacroContext(): Unit
     Definition Classes
       Macros
184.  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
185.  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
186.  def printingOk(t: Global.Tree): Boolean
     Definition Classes
       TypersTracking
187.  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
188.  def pushMacroContext(c: MacroContext): Unit
     Definition Classes
       Macros
189.  def rebindInnerClass(pre: Global.Type, cls: Global.Symbol): Global.Type
     Attributes
       protected
     Definition Classes
       Erasure
190.  final def recursivelyFinal(tpe: Global.Type): Boolean
     Definition Classes
       TypeDiagnostics
     Annotations
       @tailrec()
191.  def registerImport(ctx: Context, imp: Global.Import): Unit
     Definition Classes
       Contexts
192.  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
193.  def removeStabilizingDefinitions(tree: Global.Tree): Global.Tree
     Definition Classes
       StdAttachments
194.  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
195.  val requiredDirectInterfaces: AnyRefMap[Global.Symbol, Set[Global.Symbol]]
     Definition Classes
       Erasure
196.  val requires: List[String]

     Names of phases required by this component.

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

     Definition Classes
       SubComponent
197.  def resetContexts(): Unit
     Definition Classes
       Contexts
198.  def resetDocComments(): Unit
     Definition Classes
       Typers
199.  def resetImplicits(): Unit
     Definition Classes
       Implicits
200.  def resetTyper(): Unit
     Definition Classes
       Typers
201.  final def resolveAnonymousBridgeClash(sym: Global.Symbol, bridge: Global.Symbol): Unit
     Definition Classes
       Erasure
202.  def restoreCompleter(sym: Global.Symbol): Unit
     Definition Classes
       MacroAnnotationAttachments
203.  def restrictionError(pos: Global.Position, unit: Global.CompilationUnit, msg: String): Unit
     Definition Classes
       TypeDiagnostics
204.  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
205.  def rootContext(unit: Global.CompilationUnit, tree: Global.Tree = EmptyTree, throwing: Boolean = false, checking: Boolean = false): Context
     Definition Classes
       Contexts
206.  def rootContextPostTyper(unit: Global.CompilationUnit, tree: Global.Tree = EmptyTree): Context
     Definition Classes
       Contexts
207.  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. By default, that is `java.lang`, `scala`, and scala.Predef, in that order.

     - if option `-Yimports` is supplied, then that specifies the preamble imports
     - if the unit body has an import of Predef among its leading imports, or if the tree is scala.Predef, `Predef` is not imported. Similarly for any module among the preamble imports.
     - if the unit is java defined, only `java.lang` is imported

     The root imports for a unit are cached.

     Attributes
       protected
     Definition Classes
       Contexts
208.  val rootImportsCached: HashMap[Global.CompilationUnit, List[Global.Symbol]]
     Definition Classes
       Contexts
209.  val runsAfter: collection.immutable.List[String]

     Names of phases that must run before this phase.

     Names of phases that must run before this phase.

     Definition Classes
       erasure → SubComponent
210.  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
211.  val runsRightAfter: Some[String]

     Name of the phase that this phase must follow immediately.

     Name of the phase that this phase must follow immediately.

     Definition Classes
       erasure → SubComponent
212.  def setAddendum(pos: Global.Position, msg: () => String): Unit
     Definition Classes
       TypeDiagnostics
213.  final val shortenImports: Boolean(false)
     Definition Classes
       Typers
214.  def skipImplicit(tp: Global.Type): Global.Type
     Definition Classes
       Infer
215.  def solvedTypes(tvars: List[Global.TypeVar], tparams: List[Global.Symbol], getVariance: Extractor[Global.Symbol], 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`

     getVariance

       Function to extract variances of type parameters; we need to reverse solution direction for all contravariant variables.

     upper

       When `true` search for max solution else min.

     Definition Classes
       Infer
     Exceptions thrown
216.  def specialConstructorErasure(clazz: Global.Symbol, tpe: Global.Type): Global.Type
     Definition Classes
       Erasure
217.  def specialErasure(sym: Global.Symbol)(tp: Global.Type): Global.Type
     Definition Classes
       Erasure
218.  def stabilizingDefinitions(tree: Global.Tree): List[Global.ValDef]
     Definition Classes
       StdAttachments
219.  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
220.  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
221.  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
222.  def standardMacroRuntime(expandee: Global.Tree): MacroRuntime
     Definition Classes
       MacroRuntimes
223.  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
224.  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
225.  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
226.  final def synchronized[T0](arg0: => T0): T0
     Definition Classes
       AnyRef
227.  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
228.  def toString(): String
     Definition Classes
       AnyRef → Any
229.  def tpe_s(tp: Global.Type, colorize: (String) => String): String
     Definition Classes
       TypersTracking
230.  def transformInfo(sym: Global.Symbol, tp: Global.Type): Global.Type
     Definition Classes
       Erasure
231.  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
232.  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
233.  def treeSymTypeMsg(tree: Global.Tree): String
     Definition Classes
       TypeDiagnostics
234.  def typePatternAdvice(sym: Global.Symbol, ptSym: Global.Symbol): String
     Definition Classes
       TypeDiagnostics
235.  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
236.  def typerShouldExpandDeferredMacros: Boolean
     Definition Classes
       Macros
237.  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
238.  def unapplyMember(tp: Global.Type): Global.Symbol

     Filters out unapplies with invalid shapes: extractor methods must have either one unary param list or one unary param list and an implicit param list.

     Filters out unapplies with invalid shapes: extractor methods must have either one unary param list or one unary param list and an implicit param list.

     Definition Classes
       Unapplies
239.  def unboundedGenericArrayLevel(tp: Global.Type): Int
     Definition Classes
       Erasure
240.  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
241.  def unmarkDynamicRewrite(tree: Global.Tree): Global.Tree
     Definition Classes
       StdAttachments
242.  def unmarkExpanded(sym: Global.Symbol): Global.Symbol
     Definition Classes
       MacroAnnotationAttachments
243.  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
244.  def unmarkWeak(sym: Global.Symbol): Global.Symbol
     Definition Classes
       MacroAnnotationAttachments
245.  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
246.  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
247.  final def validateUnapplyMember(tp: Global.Type): typechecker.Unapplies.UnapplyMemberResult.Value
     Definition Classes
       Unapplies
     Annotations
       @tailrec()
248.  def valueClassIsParametric(clazz: Global.Symbol): Boolean
     Definition Classes
       Erasure
249.  def verifyJavaErasure: Boolean
     Attributes
       protected
     Definition Classes
       Erasure → Erasure
250.  final def wait(): Unit
     Definition Classes
       AnyRef
     Annotations
       @throws(classOf[java.lang.InterruptedException])
251.  final def wait(arg0: Long, arg1: Int): Unit
     Definition Classes
       AnyRef
     Annotations
       @throws(classOf[java.lang.InterruptedException])
252.  final def wait(arg0: Long): Unit
     Definition Classes
       AnyRef
     Annotations
       @throws(classOf[java.lang.InterruptedException]) @native()
253.  def warnUnusedImports(unit: Global.CompilationUnit): Unit
     Definition Classes
       Contexts
254.  def withAddendum(pos: Global.Position): (String) => String
     Definition Classes
       TypeDiagnostics
255.  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
256.  object GenericArray
     Definition Classes
       Erasure
257.  object javaErasure extends JavaErasureMap
     Definition Classes
       Erasure
258.  object specialScalaErasure extends ScalaErasureMap
     Definition Classes
       Erasure
259.  object CODE
     Definition Classes
       TreeDSL
260.  object namerFactory extends SubComponent
     Definition Classes
       Analyzer
261.  object packageObjects extends SubComponent
     Definition Classes
       Analyzer
262.  object typerFactory extends SubComponent
     Definition Classes
       Analyzer
263.  object ErrorUtils
     Definition Classes
       ContextErrors
264.  object NamesDefaultsErrorsGen
     Definition Classes
       ContextErrors
265.  object NoContext extends Analyzer.Context
     Definition Classes
       Contexts
266.  object Function1

     An extractor for unary function types arg => res

     An extractor for unary function types arg => res

     Definition Classes
       Implicits
267.  object HasMember

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

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

     Definition Classes
       Implicits
268.  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
269.  object ImplicitAmbiguousMsg extends Analyzer.ImplicitAnnotationMsg
     Definition Classes
       Implicits
270.  object ImplicitNotFoundMsg extends Analyzer.ImplicitAnnotationMsg
     Definition Classes
       Implicits
271.  object OpenImplicit extends java.io.Serializable
     Definition Classes
       Implicits
272.  object Shadower
     Definition Classes
       Implicits
273.  object approximateAbstracts extends Global.TypeMap
     Definition Classes
       Infer
274.  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
275.  object toOrigin extends Global.TypeMap
     Definition Classes
       Infer
276.  object WeakSymbolAttachment extends Product with Serializable
     Definition Classes
       MacroAnnotationAttachments
277.  object MacroImplBinding extends java.io.Serializable
     Definition Classes
       Macros
278.  object NamedApplyBlock
     Definition Classes
       NamesDefaults
279.  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 scala/bug#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
280.  object MacroImplRefAttachment extends Product with Serializable

     Definition Classes
       StdAttachments
     See also

       markMacroImplRef

281.  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
282.  object TypedExpectingUnitAttachment extends Product with Serializable

     Marks a Typed tree with Unit tpt.

     Marks a Typed tree with Unit tpt.

     Definition Classes
       StdAttachments
283.  object checkDead
     Definition Classes
       TypeDiagnostics
284.  object SilentTypeError
     Definition Classes
       Typers
285.  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
       Typers
286.  object typingStack
     Definition Classes
       TypersTracking
287.  object HasUnapply
     Definition Classes
       Unapplies
288.  object UnapplyMemberResult extends Enumeration
     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 MacroAnnotationAttachments

### 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