trait FreeTypeSymbolApi extends Universe.TypeSymbolApi
The API of free type symbols. The main source of information about symbols is the Symbols page.
$SYMACCESSORS
- Self Type
- Universe.FreeTypeSymbol
- Source
- Internals.scala
- Grouped
- Alphabetic
- By Inheritance
- FreeTypeSymbolApi
- TypeSymbolApi
- SymbolApi
- AnyRef
- Any
- by any2stringadd
- by StringFormat
- by Ensuring
- by ArrowAssoc
- Hide All
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- Public
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Type Members
-
final
type
NameType = Universe.TypeName
Type symbols have their names of type
TypeName
.Type symbols have their names of type
TypeName
.- Definition Classes
- TypeSymbolApi → SymbolApi
Abstract Value Members
-
abstract
def
alternatives: List[Universe.Symbol]
The overloaded alternatives of this symbol.
The overloaded alternatives of this symbol.
- Definition Classes
- SymbolApi
-
abstract
def
annotations: List[Universe.Annotation]
A list of annotations attached to this Symbol.
A list of annotations attached to this Symbol.
- Definition Classes
- SymbolApi
-
abstract
def
companion: Universe.Symbol
For a class: its companion object if exists.
For a class: its companion object if exists. For a module or a module class: companion class of the module if exists. For a package or a package class: NoSymbol. For all others: NoSymbol.
- Definition Classes
- SymbolApi
-
abstract
def
filter(cond: (Universe.Symbol) ⇒ Boolean): Universe.Symbol
Filters the underlying alternatives (or a single-element list composed of the symbol itself if the symbol is not overloaded).
Filters the underlying alternatives (or a single-element list composed of the symbol itself if the symbol is not overloaded). Returns an overloaded symbol is there are multiple matches. Returns a NoSymbol if there are no matches.
- Definition Classes
- SymbolApi
-
abstract
def
fullName: String
The encoded full path name of this symbol, where outer names and inner names are separated by periods.
The encoded full path name of this symbol, where outer names and inner names are separated by periods.
- Definition Classes
- SymbolApi
-
abstract
def
info: Universe.Type
The type signature of this symbol.
The type signature of this symbol.
This method always returns signatures in the most generic way possible, even if the underlying symbol is obtained from an instantiation of a generic type. For example, signature of the method
def map[B](f: (A) ⇒ B): List[B]
, which refers to the type parameterA
of the declaring classList[A]
, will always featureA
, regardless of whethermap
is loaded from theList[_]
or fromList[Int]
. To get a signature with type parameters appropriately instantiated, one should useinfoIn
.- Definition Classes
- SymbolApi
-
abstract
def
infoIn(site: Universe.Type): Universe.Type
The type signature of this symbol seen as a member of given type
site
.The type signature of this symbol seen as a member of given type
site
.- Definition Classes
- SymbolApi
-
abstract
def
isAbstract: Boolean
Is this symbol abstract (i.e.
Is this symbol abstract (i.e. an abstract class, an abstract method, value or type member)?
- Definition Classes
- SymbolApi
-
abstract
def
isAbstractOverride: Boolean
Is this symbol labelled as "abstract override"?
Is this symbol labelled as "abstract override"?
- Definition Classes
- SymbolApi
-
abstract
def
isAliasType: Boolean
Does this symbol represent the definition of a type alias?
Does this symbol represent the definition of a type alias?
- Definition Classes
- TypeSymbolApi
-
abstract
def
isConstructor: Boolean
Does this method represent a constructor?
Does this method represent a constructor?
If
owner
is a class, then this is a vanilla JVM constructor. Ifowner
is a trait, then this is a mixin constructor.- Definition Classes
- SymbolApi
-
abstract
def
isContravariant: Boolean
Is the type parameter represented by this symbol contravariant?
Is the type parameter represented by this symbol contravariant?
- Definition Classes
- TypeSymbolApi
-
abstract
def
isCovariant: Boolean
Is the type parameter represented by this symbol contravariant?
Is the type parameter represented by this symbol contravariant?
- Definition Classes
- TypeSymbolApi
-
abstract
def
isExistential: Boolean
Does this symbol represent an existentially bound type?
Does this symbol represent an existentially bound type?
- Definition Classes
- TypeSymbolApi
-
abstract
def
isFinal: Boolean
Is this symbol final?
Is this symbol final?
- Definition Classes
- SymbolApi
-
abstract
def
isImplementationArtifact: Boolean
Does this symbol represent an implementation artifact that isn't meant for public use? Examples of such artifacts are erasure bridges and outer fields.
Does this symbol represent an implementation artifact that isn't meant for public use? Examples of such artifacts are erasure bridges and outer fields.
- Definition Classes
- SymbolApi
-
abstract
def
isImplicit: Boolean
Does this symbol represent an implicit value, definition, class or parameter?
Does this symbol represent an implicit value, definition, class or parameter?
- Definition Classes
- SymbolApi
-
abstract
def
isJava: Boolean
Is this symbol defined by Java?
Is this symbol defined by Java?
- Definition Classes
- SymbolApi
-
abstract
def
isJavaAnnotation: Boolean
Does this symbol represent a java annotation interface?
Does this symbol represent a java annotation interface?
- Definition Classes
- SymbolApi
-
abstract
def
isJavaEnum: Boolean
Does this symbol represent a java enum class or a java enum value?
Does this symbol represent a java enum class or a java enum value?
- Definition Classes
- SymbolApi
-
abstract
def
isMacro: Boolean
Is this symbol a macro?
Is this symbol a macro?
- Definition Classes
- SymbolApi
-
abstract
def
isPackage: Boolean
Does this symbol represent the definition of a package? Known issues: https://github.com/scala/bug/issues/6732.
Does this symbol represent the definition of a package? Known issues: https://github.com/scala/bug/issues/6732.
- Definition Classes
- SymbolApi
-
abstract
def
isPackageClass: Boolean
Does this symbol represent a package class? If yes,
isClass
is also guaranteed to be true.Does this symbol represent a package class? If yes,
isClass
is also guaranteed to be true.- Definition Classes
- SymbolApi
-
abstract
def
isParameter: Boolean
Is this symbol a parameter (either a method parameter or a type parameter)?
Is this symbol a parameter (either a method parameter or a type parameter)?
- Definition Classes
- SymbolApi
-
abstract
def
isPrivate: Boolean
Does this symbol represent a private declaration or definition? If yes,
privateWithin
might tell more about this symbol's visibility scope.Does this symbol represent a private declaration or definition? If yes,
privateWithin
might tell more about this symbol's visibility scope.- Definition Classes
- SymbolApi
-
abstract
def
isPrivateThis: Boolean
Does this symbol represent a declaration or definition written in a source file as
private[this]
or generated in tree/symbol form with the combination of flags LOCAL and PRIVATE? If yes,isPrivate
is guaranteed to be true.Does this symbol represent a declaration or definition written in a source file as
private[this]
or generated in tree/symbol form with the combination of flags LOCAL and PRIVATE? If yes,isPrivate
is guaranteed to be true.- Definition Classes
- SymbolApi
-
abstract
def
isProtected: Boolean
Does this symbol represent a protected declaration or definition? If yes,
privateWithin
might tell more about this symbol's visibility scope.Does this symbol represent a protected declaration or definition? If yes,
privateWithin
might tell more about this symbol's visibility scope.- Definition Classes
- SymbolApi
-
abstract
def
isProtectedThis: Boolean
Does this symbol represent a declaration or definition written in a source file as
protected[this]
or generated in tree/symbol form with the combination of flags LOCAL and PROTECTED? If yes,isProtected
is guaranteed to be true,Does this symbol represent a declaration or definition written in a source file as
protected[this]
or generated in tree/symbol form with the combination of flags LOCAL and PROTECTED? If yes,isProtected
is guaranteed to be true,- Definition Classes
- SymbolApi
-
abstract
def
isPublic: Boolean
Does this symbol represent a public declaration or definition?
Does this symbol represent a public declaration or definition?
- Definition Classes
- SymbolApi
-
abstract
def
isSpecialized: Boolean
Is this symbol a specialized type parameter or a generated specialized member?
Is this symbol a specialized type parameter or a generated specialized member?
- Definition Classes
- SymbolApi
-
abstract
def
isStatic: Boolean
Is this symbol static (i.e.
Is this symbol static (i.e. with no outer instance)? Q: When exactly is a sym marked as STATIC? A: If it's a member of a toplevel object, or of an object contained in a toplevel object, or any number of levels deep. http://groups.google.com/group/scala-internals/browse_thread/thread/d385bcd60b08faf6
- Definition Classes
- SymbolApi
-
abstract
def
isSynthetic: Boolean
Does this symbol represent a synthetic (i.e.
Does this symbol represent a synthetic (i.e. a compiler-generated) entity? Examples of synthetic entities are accessors for vals and vars.
- Definition Classes
- SymbolApi
-
abstract
def
map(f: (Universe.Symbol) ⇒ Universe.Symbol): Universe.Symbol
If this is a NoSymbol, returns NoSymbol, otherwise returns the result of applying
f
to this symbol.If this is a NoSymbol, returns NoSymbol, otherwise returns the result of applying
f
to this symbol.- Definition Classes
- SymbolApi
-
abstract
def
name: FreeTypeSymbol.NameType
The name of the symbol as a member of the
Name
type.The name of the symbol as a member of the
Name
type.- Definition Classes
- SymbolApi
-
abstract
def
orElse(alt: ⇒ Universe.Symbol): Universe.Symbol
Provides an alternate if symbol is a NoSymbol.
Provides an alternate if symbol is a NoSymbol.
- Definition Classes
- SymbolApi
-
abstract
def
origin: String
The place where this symbol has been spawned
-
abstract
def
overrides: List[Universe.Symbol]
Returns all symbols overridden by this symbol.
Returns all symbols overridden by this symbol.
- Definition Classes
- SymbolApi
-
abstract
def
owner: Universe.Symbol
The owner of this symbol.
The owner of this symbol. This is the symbol that directly contains the current symbol's definition. The
NoSymbol
symbol does not have an owner, and calling this method on one causes an internal error. The owner of the Scala root class scala.reflect.api.Mirror.RootClass and the Scala root object scala.reflect.api.Mirror.RootPackage isNoSymbol
. Every other symbol has a chain of owners that ends in scala.reflect.api.Mirror.RootClass.- Definition Classes
- SymbolApi
-
abstract
def
pos: Universe.Position
Position of the tree.
Position of the tree.
- Definition Classes
- SymbolApi
-
abstract
def
privateWithin: Universe.Symbol
Set when symbol has a modifier of the form private[X] or protected[X], NoSymbol otherwise.
Set when symbol has a modifier of the form private[X] or protected[X], NoSymbol otherwise.
Access level encoding: there are three scala flags (PRIVATE, PROTECTED, and LOCAL) which combine with value privateWithin (the "foo" in private[foo]) to define from where an entity can be accessed. The meanings are as follows:
PRIVATE access restricted to class only. PROTECTED access restricted to class and subclasses only. LOCAL can only be set in conjunction with PRIVATE or PROTECTED. Further restricts access to the same object instance.
In addition, privateWithin can be used to set a visibility barrier. When set, everything contained in the named enclosing package or class has access. It is incompatible with PRIVATE or LOCAL, but is additive with PROTECTED (i.e. if either the flags or privateWithin allow access, then it is allowed.)
The java access levels translate as follows:
java private: isPrivate && (privateWithin == NoSymbol) java package: !isPrivate && !isProtected && (privateWithin == enclosingPackage) java protected: isProtected && (privateWithin == enclosingPackage) java public: !isPrivate && !isProtected && (privateWithin == NoSymbol)
- Definition Classes
- SymbolApi
-
abstract
def
suchThat(cond: (Universe.Symbol) ⇒ Boolean): Universe.Symbol
Does the same as
filter
, but crashes if there are multiple matches.Does the same as
filter
, but crashes if there are multiple matches.- Definition Classes
- SymbolApi
-
abstract
def
toType: Universe.Type
A type reference that refers to this type symbol.
A type reference that refers to this type symbol. Note if symbol is a member of a class, one almost always is interested in
asTypeIn
with a site type instead.Example: Given a class declaration
class C[T] { ... }
, that generates a symbolC
. ThenC.toType
is the typeC[T]
.By contrast,
C.info
would be a type signature of formPolyType(ClassInfoType(...))
that describes type parameters, value parameters, parent types, and members ofC
.- Definition Classes
- TypeSymbolApi
-
abstract
def
toTypeConstructor: Universe.Type
The type constructor corresponding to this type symbol.
The type constructor corresponding to this type symbol. This is different from
toType
in that type parameters are part of results oftoType
, but not oftoTypeConstructor
.Example: Given a class declaration
class C[T] { ... }
, that generates a symbolC
. ThenC.toType
is the typeC[T]
, butC.toTypeConstructor
isC
.- Definition Classes
- TypeSymbolApi
-
abstract
def
toTypeIn(site: Universe.Type): Universe.Type
A type reference that refers to this type symbol seen as a member of given type
site
.A type reference that refers to this type symbol seen as a member of given type
site
.- Definition Classes
- TypeSymbolApi
-
abstract
def
typeParams: List[Universe.Symbol]
For a polymorphic type, its type parameters, the empty list for all other types.
For a polymorphic type, its type parameters, the empty list for all other types.
- Definition Classes
- TypeSymbolApi
- abstract def typeSignature: Universe.Type
- abstract def typeSignatureIn(site: Universe.Type): Universe.Type
- abstract def allOverriddenSymbols: List[Universe.Symbol]
-
abstract
def
associatedFile: AbstractFile
Source file if this symbol is created during this compilation run, or a class file if this symbol is loaded from a *.class or *.jar.
Source file if this symbol is created during this compilation run, or a class file if this symbol is loaded from a *.class or *.jar.
The return type is
scala.reflect.io.AbstractFile
, which belongs to an experimental part of Scala reflection. It should not be used unless you know what you are doing. In subsequent releases, this API will be refined and exposed as a part of scala.reflect.api.- Definition Classes
- SymbolApi
- Annotations
- @deprecated
- Deprecated
(Since version 2.11.0) use
pos.source.file
instead
-
abstract
def
companionSymbol: Universe.Symbol
For a class: the module or case class factory with the same name in the same package.
For a class: the module or case class factory with the same name in the same package. For a module: the class with the same name in the same package. For all others: NoSymbol.
This API may return unexpected results for module classes, packages and package classes. Use
companion
instead in order to get predictable results.- Definition Classes
- SymbolApi
- Annotations
- @deprecated
- Deprecated
(Since version 2.11.0) use
companion
instead, but beware of possible changes in behavior
-
abstract
def
isAbstractType: Boolean
Does this symbol represent the definition of an abstract type?
Does this symbol represent the definition of an abstract type?
- Definition Classes
- TypeSymbolApi
- Annotations
- @deprecated
- Deprecated
(Since version 2.11.0) use isAbstract instead
Concrete Value Members
-
final
def
!=(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
-
final
def
##(): Int
- Definition Classes
- AnyRef → Any
-
def
+(other: String): String
- Implicit
- This member is added by an implicit conversion from Universe.FreeTypeSymbolApi to any2stringadd[Universe.FreeTypeSymbolApi] performed by method any2stringadd in scala.Predef.
- Definition Classes
- any2stringadd
-
def
->[B](y: B): (Universe.FreeTypeSymbolApi, B)
- Implicit
- This member is added by an implicit conversion from Universe.FreeTypeSymbolApi to ArrowAssoc[Universe.FreeTypeSymbolApi] performed by method ArrowAssoc in scala.Predef.
- Definition Classes
- ArrowAssoc
- Annotations
- @inline()
-
final
def
==(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
-
def
asClass: Universe.ClassSymbol
This symbol cast to a ClassSymbol representing a class or trait.
This symbol cast to a ClassSymbol representing a class or trait.
- Definition Classes
- SymbolApi
- Exceptions thrown
ScalaReflectionException
ifisClass
is false.
-
final
def
asInstanceOf[T0]: T0
- Definition Classes
- Any
-
def
asMethod: Universe.MethodSymbol
This symbol cast to a MethodSymbol.
This symbol cast to a MethodSymbol.
- Definition Classes
- SymbolApi
- Exceptions thrown
ScalaReflectionException
ifisMethod
is false.
-
def
asModule: Universe.ModuleSymbol
This symbol cast to a ModuleSymbol defined by an object definition.
This symbol cast to a ModuleSymbol defined by an object definition.
- Definition Classes
- SymbolApi
- Exceptions thrown
ScalaReflectionException
ifisModule
is false.
-
def
asTerm: Universe.TermSymbol
This symbol cast to a TermSymbol.
This symbol cast to a TermSymbol.
- Definition Classes
- SymbolApi
- Exceptions thrown
ScalaReflectionException
ifisTerm
is false.
-
final
def
asType: Universe.TypeSymbol
This symbol cast to a TypeSymbol.
This symbol cast to a TypeSymbol.
- Definition Classes
- TypeSymbolApi → SymbolApi
- Exceptions thrown
ScalaReflectionException
ifisType
is false.
-
def
clone(): AnyRef
- Attributes
- protected[java.lang]
- Definition Classes
- AnyRef
- Annotations
- @native() @throws( ... )
-
def
ensuring(cond: (Universe.FreeTypeSymbolApi) ⇒ Boolean, msg: ⇒ Any): Universe.FreeTypeSymbolApi
- Implicit
- This member is added by an implicit conversion from Universe.FreeTypeSymbolApi to Ensuring[Universe.FreeTypeSymbolApi] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
-
def
ensuring(cond: (Universe.FreeTypeSymbolApi) ⇒ Boolean): Universe.FreeTypeSymbolApi
- Implicit
- This member is added by an implicit conversion from Universe.FreeTypeSymbolApi to Ensuring[Universe.FreeTypeSymbolApi] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
-
def
ensuring(cond: Boolean, msg: ⇒ Any): Universe.FreeTypeSymbolApi
- Implicit
- This member is added by an implicit conversion from Universe.FreeTypeSymbolApi to Ensuring[Universe.FreeTypeSymbolApi] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
-
def
ensuring(cond: Boolean): Universe.FreeTypeSymbolApi
- Implicit
- This member is added by an implicit conversion from Universe.FreeTypeSymbolApi to Ensuring[Universe.FreeTypeSymbolApi] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
-
final
def
eq(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
-
def
equals(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
-
def
finalize(): Unit
- Attributes
- protected[java.lang]
- Definition Classes
- AnyRef
- Annotations
- @throws( classOf[java.lang.Throwable] )
-
def
formatted(fmtstr: String): String
- Implicit
- This member is added by an implicit conversion from Universe.FreeTypeSymbolApi to StringFormat[Universe.FreeTypeSymbolApi] performed by method StringFormat in scala.Predef.
- Definition Classes
- StringFormat
- Annotations
- @inline()
-
final
def
getClass(): Class[_]
- Definition Classes
- AnyRef → Any
- Annotations
- @native()
-
def
hashCode(): Int
- Definition Classes
- AnyRef → Any
- Annotations
- @native()
-
def
isClass: Boolean
Does this symbol represent the definition of a class or trait? If yes,
isType
is also guaranteed to be true.Does this symbol represent the definition of a class or trait? If yes,
isType
is also guaranteed to be true.- Definition Classes
- SymbolApi
-
final
def
isInstanceOf[T0]: Boolean
- Definition Classes
- Any
-
def
isMethod: Boolean
Does this symbol represent the definition of a method? If yes,
isTerm
is also guaranteed to be true.Does this symbol represent the definition of a method? If yes,
isTerm
is also guaranteed to be true.- Definition Classes
- SymbolApi
-
def
isModule: Boolean
Does this symbol represent the definition of a module (i.e.
Does this symbol represent the definition of a module (i.e. it results from an object definition?). If yes,
isTerm
is also guaranteed to be true.- Definition Classes
- SymbolApi
-
def
isModuleClass: Boolean
Does this symbol represent the definition of a class implicitly associated with an object definition (module class in scala compiler parlance)? If yes,
isType
is also guaranteed to be true.Does this symbol represent the definition of a class implicitly associated with an object definition (module class in scala compiler parlance)? If yes,
isType
is also guaranteed to be true.- Definition Classes
- SymbolApi
-
def
isOverloadedMethod: Boolean
Used to provide a better error message for
asMethod
.Used to provide a better error message for
asMethod
.- Attributes
- protected
- Definition Classes
- SymbolApi
-
def
isTerm: Boolean
Does this symbol represent the definition of a term? Note that every symbol is either a term or a type.
Does this symbol represent the definition of a term? Note that every symbol is either a term or a type. So for every symbol
sym
(except forNoSymbol
), eithersym.isTerm
is true orsym.isType
is true.- Definition Classes
- SymbolApi
-
final
def
isType: Boolean
Does this symbol represent the definition of a type? Note that every symbol is either a term or a type.
Does this symbol represent the definition of a type? Note that every symbol is either a term or a type. So for every symbol
sym
(except forNoSymbol
), eithersym.isTerm
is true orsym.isType
is true.- Definition Classes
- TypeSymbolApi → SymbolApi
-
final
def
ne(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
-
final
def
notify(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native()
-
final
def
notifyAll(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native()
-
final
def
synchronized[T0](arg0: ⇒ T0): T0
- Definition Classes
- AnyRef
-
def
toString(): String
- Definition Classes
- AnyRef → Any
-
final
def
wait(): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws( ... )
-
final
def
wait(arg0: Long, arg1: Int): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws( ... )
-
final
def
wait(arg0: Long): Unit
- Definition Classes
- AnyRef
- Annotations
- @native() @throws( ... )
-
def
→[B](y: B): (Universe.FreeTypeSymbolApi, B)
- Implicit
- This member is added by an implicit conversion from Universe.FreeTypeSymbolApi to ArrowAssoc[Universe.FreeTypeSymbolApi] performed by method ArrowAssoc in scala.Predef.
- Definition Classes
- ArrowAssoc
Inherited from Universe.TypeSymbolApi
Inherited from Universe.SymbolApi
Inherited from AnyRef
Inherited from Any
Inherited by implicit conversion any2stringadd from Universe.FreeTypeSymbolApi to any2stringadd[Universe.FreeTypeSymbolApi]
Inherited by implicit conversion StringFormat from Universe.FreeTypeSymbolApi to StringFormat[Universe.FreeTypeSymbolApi]
Inherited by implicit conversion Ensuring from Universe.FreeTypeSymbolApi to Ensuring[Universe.FreeTypeSymbolApi]
Inherited by implicit conversion ArrowAssoc from Universe.FreeTypeSymbolApi to ArrowAssoc[Universe.FreeTypeSymbolApi]
Method Symbol Members
TypeSymbol Members
Symbol Basic Information
FreeType
Symbol Type Tests
Symbol Conversions
Iteration Helpers
These methods enable collections-like operations on symbols.