Backing field for an accessor method, NoSymbol for all other term symbols.

The overloaded alternatives of this symbol.

A list of annotations attached to this 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.

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.

The encoded full path name of this symbol, where outer names and inner names are separated by periods.

Getter method for a backing field of a val or a val, NoSymbol for all other term symbols.

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.

The type signature of this symbol seen as a member of given type site.

Is this symbol abstract (i.e. an abstract class, an abstract method, value or type member)?

Is this symbol labelled as "abstract override"?

Does this symbol represent a getter or a setter?

Does this symbol represent a by-name parameter?

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?

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.

Is this symbol final?

Does this symbol represent a getter of a field? If yes, isMethod is also guaranteed to be true.

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 implicit value, definition, class or parameter?

Is this symbol defined by Java?

Does this symbol represent a java annotation interface?

Does this symbol represent a java enum class or a java enum value?

Does this symbol represent a lazy value?

Is this symbol a macro?

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.

Does this symbol represent the definition of a package? Known issues: https://issues.scala-lang.org/browse/SI-6732.

Does this symbol represent a package class? If yes, isClass is also guaranteed to be true.

Does this symbol represent a field of a class that was generated from a parameter of that class?

Does this symbol represent a parameter with a default value?

Is this symbol a parameter (either a method parameter or a type parameter)?

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 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 protected declaration or definition? If yes, privateWithin might tell more about this symbol's visibility scope.

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 public declaration or definition?

Does this symbol represent a setter of a field? If yes, isMethod is also guaranteed to be true.

Is this symbol a specialized type parameter or a generated specialized member?

Does this symbol denote a stable value?

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

Does this symbol represent a synthetic (i.e. a compiler-generated) entity? Examples of synthetic entities are accessors for vals and vars or mixin constructors in trait implementation classes.

Is this symbol introduced as val?

Is this symbol introduced as var?

If this is a NoSymbol, returns NoSymbol, otherwise returns the result of applying f to this symbol.

The name of the symbol as a member of the Name type.

Provides an alternate if symbol is a NoSymbol.

The place where this symbol has been spawned

Returns all symbols overridden by 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 is NoSymbol. Every other symbol has a chain of owners that ends in scala.reflect.api.Mirror.RootClass.

Position of the tree.

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)

Setter method for a backing field of a val or a val, NoSymbol for all other term symbols.

Does the same as filter, but crashes if there are multiple matches.

The valus this symbol refers to

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.

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.

Test two objects for inequality.

Equivalent to x.hashCode except for boxed numeric types and null. For numerics, it returns a hash value which is consistent with value equality: if two value type instances compare as true, then ## will produce the same hash value for each of them. For null returns a hashcode where null.hashCode throws a NullPointerException.

The expression x == that is equivalent to if (x eq null) that eq null else x.equals(that).

This symbol cast to a ClassSymbol representing a class or trait.

Cast the receiver object to be of type T0.

Note that the success of a cast at runtime is modulo Scala's erasure semantics. Therefore the expression 1.asInstanceOf[String] will throw a ClassCastException at runtime, while the expression List(1).asInstanceOf[List[String]] will not. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the requested type.

This symbol cast to a MethodSymbol.

This symbol cast to a ModuleSymbol defined by an object definition.

This symbol cast to a TermSymbol.

This symbol cast to a TypeSymbol.

Create a copy of the receiver object.

The default implementation of the clone method is platform dependent.

Tests whether the argument (that) is a reference to the receiver object (this).

The eq method implements an equivalence relation on non-null instances of AnyRef, and has three additional properties:

• It is consistent: for any non-null instances x and y of type AnyRef, multiple invocations of x.eq(y) consistently returns true or consistently returns false.
• For any non-null instance x of type AnyRef, x.eq(null) and null.eq(x) returns false.
• null.eq(null) returns true.

When overriding the equals or hashCode methods, it is important to ensure that their behavior is consistent with reference equality. Therefore, if two objects are references to each other (o1 eq o2), they should be equal to each other (o1 == o2) and they should hash to the same value (o1.hashCode == o2.hashCode).

The equality method for reference types. Default implementation delegates to eq.

See also equals in scala.Any.

Called by the garbage collector on the receiver object when there are no more references to the object.

The details of when and if the finalize method is invoked, as well as the interaction between finalize and non-local returns and exceptions, are all platform dependent.

Returns the runtime class representation of the object.

The hashCode method for reference types. See hashCode in scala.Any.

Does this symbol represent the definition of a class or trait? If yes, isType is also guaranteed to be true.

Test whether the dynamic type of the receiver object is T0.

Note that the result of the test is modulo Scala's erasure semantics. Therefore the expression 1.isInstanceOf[String] will return false, while the expression List(1).isInstanceOf[List[String]] will return true. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the specified type.

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 module (i.e. it results from an object definition?). If yes, isTerm 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.

Note to compiler developers: During the "mixin" phase, trait implementation class symbols receive the lateMODULE flag, hence isImplClass && isModuleClass becomes true.

Used to provide a better error message for asMethod

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.

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.

Equivalent to !(this eq that).

Wakes up a single thread that is waiting on the receiver object's monitor.

Wakes up all threads that are waiting on the receiver object's monitor.

Creates a String representation of this object. The default representation is platform dependent. On the java platform it is the concatenation of the class name, "@", and the object's hashcode in hexadecimal.