Trait scala.reflect.api.Symbols.ModuleSymbolApi
trait ModuleSymbolApi extends Universe.TermSymbolApi
Type Members
final type NameType = Universe.TermName
Term symbols have their names of type TermName
.
- Definition Classes
- TermSymbolApi → SymbolApi
Abstract Value Members
abstract def accessed: Universe.Symbol
Backing field for an accessor method, NoSymbol for all other term symbols.
- Definition Classes
- TermSymbolApi
abstract def alternatives: List[Universe.Symbol]
The overloaded alternatives of this symbol.
- Definition Classes
- SymbolApi
abstract def annotations: List[Universe.Annotation]
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 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). 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.
- Definition Classes
- SymbolApi
abstract def getter: Universe.Symbol
Getter method for a backing field of a val or a val, NoSymbol for all other term symbols.
- Definition Classes
- TermSymbolApi
abstract def info: Universe.Type
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 parameter A
of the declaring class List[A]
, will always feature A
, regardless of whether map
is loaded from the List[_]
or from List[Int]
. To get a signature with type parameters appropriately instantiated, one should use infoIn
.
- 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
.
- Definition Classes
- SymbolApi
abstract def isAbstract: Boolean
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"?
- Definition Classes
- SymbolApi
abstract def isAccessor: Boolean
Does this symbol represent a getter or a setter?
- Definition Classes
- TermSymbolApi
abstract def isByNameParam: Boolean
Does this symbol represent a by-name parameter?
- Definition Classes
- TermSymbolApi
abstract def isCaseAccessor: Boolean
Does this symbol represent a field of a case class that corresponds to a parameter in the first parameter list of the primary constructor of that class?
- Definition Classes
- TermSymbolApi
abstract def isConstructor: Boolean
Does this method represent a constructor?
If owner
is a class, then this is a vanilla JVM constructor. If owner
is a trait, then this is a mixin constructor.
- Definition Classes
- SymbolApi
abstract def isFinal: Boolean
Is this symbol final?
- Definition Classes
- SymbolApi
abstract def isGetter: Boolean
Does this symbol represent a getter of a field? If yes, isMethod
is also guaranteed to be true.
- Definition Classes
- TermSymbolApi
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.
- Definition Classes
- SymbolApi
abstract def isImplicit: Boolean
Does this symbol represent an implicit value, definition, class or parameter?
- Definition Classes
- SymbolApi
abstract def isJava: Boolean
Is this symbol defined by Java?
- Definition Classes
- SymbolApi
abstract def isJavaAnnotation: Boolean
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?
- Definition Classes
- SymbolApi
abstract def isLazy: Boolean
Does this symbol represent a lazy value?
- Definition Classes
- TermSymbolApi
abstract def isMacro: Boolean
Is this symbol a macro?
- Definition Classes
- SymbolApi
abstract def isOverloaded: Boolean
Does this symbol represent an overloaded method? If yes, isMethod
is false, and the list of the enclosed alternatives can be found out via alternatives
.
- Definition Classes
- TermSymbolApi
abstract def isPackage: Boolean
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.
- Definition Classes
- SymbolApi
abstract def isParamAccessor: Boolean
Does this symbol represent a field of a class that was generated from a parameter of that class?
- Definition Classes
- TermSymbolApi
abstract def isParamWithDefault: Boolean
Does this symbol represent a parameter with a default value?
- Definition Classes
- TermSymbolApi
abstract def isParameter: Boolean
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.
- 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.
- 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.
- 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,
- Definition Classes
- SymbolApi
abstract def isPublic: Boolean
Does this symbol represent a public declaration or definition?
- Definition Classes
- SymbolApi
abstract def isSetter: Boolean
Does this symbol represent a setter of a field? If yes, isMethod
is also guaranteed to be true.
- Definition Classes
- TermSymbolApi
abstract def isSpecialized: Boolean
Is this symbol a specialized type parameter or a generated specialized member?
- Definition Classes
- SymbolApi
abstract def isStable: Boolean
Does this symbol denote a stable value?
- Definition Classes
- TermSymbolApi
abstract def isStatic: Boolean
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. a compiler-generated) entity? Examples of synthetic entities are accessors for vals and vars.
- Definition Classes
- SymbolApi
abstract def isVal: Boolean
Is this symbol introduced as val
?
- Definition Classes
- TermSymbolApi
abstract def isVar: Boolean
Is this symbol introduced as var
?
- Definition Classes
- TermSymbolApi
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.
- Definition Classes
- SymbolApi
abstract def moduleClass: Universe.Symbol
The class implicitly associated with the object definition. One can go back from a module class to the associated module symbol by inspecting its selfType.termSymbol
.
abstract def name: ModuleSymbol.NameType
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.
- Definition Classes
- SymbolApi
abstract def overrides: List[Universe.Symbol]
Returns all symbols overridden by this symbol.
- Definition Classes
- SymbolApi
abstract def owner: Universe.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 is NoSymbol
. 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.
- Definition Classes
- SymbolApi
abstract def privateWithin: Universe.Symbol
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 setter: Universe.Symbol
Setter method for a backing field of a val or a val, NoSymbol for all other term symbols.
- Definition Classes
- TermSymbolApi
abstract def suchThat(cond: (Universe.Symbol) ⇒ Boolean): Universe.Symbol
Does the same as filter
, but crashes if there are multiple matches.
- Definition Classes
- SymbolApi
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.
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 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
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.ModuleSymbolApi to any2stringadd[Universe.ModuleSymbolApi] performed by method any2stringadd in scala.Predef.
- Definition Classes
- any2stringadd
def ->[B](y: B): (Universe.ModuleSymbolApi, B)
- Implicit
- This member is added by an implicit conversion from Universe.ModuleSymbolApi to ArrowAssoc[Universe.ModuleSymbolApi] 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.
- 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.
- Definition Classes
- SymbolApi
- Exceptions thrown
ScalaReflectionException
ifisMethod
is false.
final def asModule: Universe.ModuleSymbol
This symbol cast to a ModuleSymbol defined by an object definition.
- Definition Classes
- ModuleSymbolApi → SymbolApi
- Exceptions thrown
ScalaReflectionException
ifisModule
is false.
final def asTerm: Universe.TermSymbol
This symbol cast to a TermSymbol.
- Definition Classes
- TermSymbolApi → SymbolApi
- Exceptions thrown
ScalaReflectionException
ifisTerm
is false.
def asType: Universe.TypeSymbol
This symbol cast to a TypeSymbol.
- Definition Classes
- SymbolApi
- Exceptions thrown
ScalaReflectionException
ifisType
is false.
def clone(): AnyRef
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws( ... ) @native()
def ensuring(cond: (Universe.ModuleSymbolApi) ⇒ Boolean, msg: ⇒ Any): Universe.ModuleSymbolApi
- Implicit
- This member is added by an implicit conversion from Universe.ModuleSymbolApi to Ensuring[Universe.ModuleSymbolApi] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
def ensuring(cond: (Universe.ModuleSymbolApi) ⇒ Boolean): Universe.ModuleSymbolApi
- Implicit
- This member is added by an implicit conversion from Universe.ModuleSymbolApi to Ensuring[Universe.ModuleSymbolApi] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
def ensuring(cond: Boolean, msg: ⇒ Any): Universe.ModuleSymbolApi
- Implicit
- This member is added by an implicit conversion from Universe.ModuleSymbolApi to Ensuring[Universe.ModuleSymbolApi] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
def ensuring(cond: Boolean): Universe.ModuleSymbolApi
- Implicit
- This member is added by an implicit conversion from Universe.ModuleSymbolApi to Ensuring[Universe.ModuleSymbolApi] 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[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.ModuleSymbolApi to StringFormat[Universe.ModuleSymbolApi] 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.
- 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.
- Definition Classes
- SymbolApi
final def isModule: Boolean
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
- ModuleSymbolApi → 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.
- Definition Classes
- SymbolApi
def isOverloadedMethod: Boolean
Used to provide a better error message for asMethod
- Attributes
- protected
- Definition Classes
- TermSymbolApi → SymbolApi
final def isTerm: Boolean
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 for NoSymbol
), either sym.isTerm
is true or sym.isType
is true.
- Definition Classes
- TermSymbolApi → SymbolApi
def isType: Boolean
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 for NoSymbol
), either sym.isTerm
is true or sym.isType
is true.
- Definition Classes
- 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
- @throws( ... ) @native()
def →[B](y: B): (Universe.ModuleSymbolApi, B)
- Implicit
- This member is added by an implicit conversion from Universe.ModuleSymbolApi to ArrowAssoc[Universe.ModuleSymbolApi] performed by method ArrowAssoc in scala.Predef.
- Definition Classes
- ArrowAssoc
© 2002-2019 EPFL, with contributions from Lightbend.
Licensed under the Apache License, Version 2.0.
https://www.scala-lang.org/api/2.12.9/scala-reflect/scala/reflect/api/Symbols$ModuleSymbolApi.html
The API of module symbols. The main source of information about symbols is the Symbols page.
Class Symbol defines
isXXX
test methods such asisPublic
orisFinal
,params
andreturnType
methods for method symbols,baseClasses
for class symbols and so on. Some of these methods don't make sense for certain subclasses ofSymbol
and returnNoSymbol
,Nil
or other empty values.