Information about an annotation.
The API of Annotation instances.
An extractor class to create and pattern match with syntax Annotation(tpe, scalaArgs, javaArgs).
An array argument to a Java annotation as in @Target(value={TYPE,FIELD,METHOD,PARAMETER})
API of ArrayArgument instances.
An extractor class to create and pattern match with syntax ArrayArgument(args)
where args is the argument array.
A Java annotation argument
A literal argument to a Java annotation as "Use X instead" in @Deprecated("Use X instead")
The API of LiteralArgument instances.
An extractor class to create and pattern match with syntax LiteralArgument(value)
where value is the constant argument.
A nested annotation argument to a Java annotation as @Nested in @Outer(@Nested).
API of NestedArgument instances.
An extractor class to create and pattern match with syntax NestedArgument(annotation)
where annotation is the nested annotation.
The constructor/extractor for Annotation instances.
A tag that preserves the identity of the Annotation abstract type from erasure.
A tag that preserves the identity of the Annotation abstract type from erasure.
Can be used for pattern matching, instance tests, serialization and likes.
The constructor/extractor for ArrayArgument instances.
A tag that preserves the identity of the ArrayArgument abstract type from erasure.
A tag that preserves the identity of the ArrayArgument abstract type from erasure.
Can be used for pattern matching, instance tests, serialization and likes.
A tag that preserves the identity of the JavaArgument abstract type from erasure.
A tag that preserves the identity of the JavaArgument abstract type from erasure.
Can be used for pattern matching, instance tests, serialization and likes.
The constructor/extractor for LiteralArgument instances.
A tag that preserves the identity of the LiteralArgument abstract type from erasure.
A tag that preserves the identity of the LiteralArgument abstract type from erasure.
Can be used for pattern matching, instance tests, serialization and likes.
The constructor/extractor for NestedArgument instances.
A tag that preserves the identity of the NestedArgument abstract type from erasure.
A tag that preserves the identity of the NestedArgument abstract type from erasure.
Can be used for pattern matching, instance tests, serialization and likes.
Test two objects for inequality.
Test two objects for inequality.
true if !(this == that), false otherwise.
Equivalent to x.hashCode except for boxed numeric types and null.
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.
a hash value consistent with ==
Test two objects for equality.
Test two objects for equality.
The expression x == that is equivalent to if (x eq null) that eq null else x.equals(that).
true if the receiver object is equivalent to the argument; false otherwise.
Cast the receiver object to be of type T0.
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.
the receiver object.
if the receiver object is not an instance of the erasure of type T0.
Create a copy of the receiver object.
Tests whether the argument (arg0) is a reference to the receiver object (this).
Tests whether the argument (arg0) 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:
x and y of type AnyRef, multiple invocations of
x.eq(y) consistently returns true or consistently returns false.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).
true if the argument is a reference to the receiver object; false otherwise.
The equality method for reference types.
Called by the garbage collector on the receiver object when there are no more references to the object.
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 string formatted according to given format string.
Returns string formatted according to given format string.
Format strings are as for String.format
(@see java.lang.String.format).
A representation that corresponds to the dynamic class of the receiver object.
A representation that corresponds to the dynamic class of the receiver object.
The nature of the representation is platform dependent.
a representation that corresponds to the dynamic class of the receiver object.
not specified by SLS as a member of AnyRef
The hashCode method for reference types.
Test whether the dynamic type of the receiver object is T0.
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.
true if the receiver object is an instance of erasure of type T0; false otherwise.
Equivalent to !(this eq that).
Equivalent to !(this eq that).
true if the argument is not a reference to the receiver object; false otherwise.
Wakes up a single thread that is waiting on the receiver object's monitor.
Wakes up a single thread that is waiting on the receiver object's monitor.
not specified by SLS as a member of AnyRef
Wakes up all threads that are waiting on the receiver object's monitor.
Wakes up all threads that are waiting on the receiver object's monitor.
not specified by SLS as a member of AnyRef
Creates a String representation of this object.
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.
a String representation of the object.
(annotations: StringAdd).self
(annotations: StringFormat).self
(annotations: ArrowAssoc[Annotations]).x
(Since version 2.10.0) Use leftOfArrow instead
(annotations: Ensuring[Annotations]).x
(Since version 2.10.0) Use resultOfEnsuring instead
The methods available for each reflection entity, without the implementation. Since the reflection entities are later overridden by runtime reflection and macros, their API counterparts guarantee a minimum set of methods that are implemented.
Extractors provide the machinery necessary to allow pattern matching and construction of reflection entities that is similar to case classes, although the entities are only abstract types that are later overridden.
Implicit values that provide ClassTags for the reflection
classes. These are abstract in the interface but are later filled in to provide ClassTags
for the either the runtime reflection or macros entities, depending on the use.
EXPERIMENTAL
This trait provides annotation support for the reflection API.
The API distinguishes between two kinds of annotations:
When a Scala annotation that inherits from scala.annotation.StaticAnnotation or scala.annotation.ClassfileAnnotation is compiled, it is stored as special attributes in the corresponding classfile, and not as a Java annotation. Note that subclassing just scala.annotation.Annotation is not enough to have the corresponding metadata persisted for runtime reflection.
The distinction between Java and Scala annotations is manifested in the contract of scala.reflect.api.Annotations#Annotation, which exposes both
scalaArgsandjavaArgs. For Scala or Java annotations extending scala.annotation.ClassfileAnnotationscalaArgsis empty and arguments are stored injavaArgs. For all other Scala annotations, arguments are stored inscalaArgsandjavaArgsis empty.Arguments in
scalaArgsare represented as typed trees. Note that these trees are not transformed by any phases following the type-checker. Arguments injavaArgsare repesented as a map from scala.reflect.api.Names#Name to scala.reflect.api.Annotations#JavaArgument. Instances ofJavaArgumentrepresent different kinds of Java annotation arguments:For more information about
Annotations, see the Reflection Guide: Annotations, Names, Scopes, and More