object ManifestFactory
ManifestFactory
defines factory methods for manifests.
It is intended for use by the compiler and should not be used in client code.
Unlike Manifest
, this factory isn't annotated with a deprecation warning.
This is done to prevent avalanches of deprecation warnings in the code that calls methods with manifests.
Why so complicated? Read up the comments for ClassManifestFactory
.
- Source
- Manifest.scala
- Alphabetic
- By Inheritance
- ManifestFactory
- AnyRef
- Any
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Value Members
- val Any: Manifest[Any]
- val AnyRef: Manifest[AnyRef]
- val AnyVal: Manifest[AnyVal]
- val Boolean: AnyValManifest[Boolean]
- val Byte: AnyValManifest[Byte]
- val Char: AnyValManifest[Char]
- val Double: AnyValManifest[Double]
- val Float: AnyValManifest[Float]
- val Int: AnyValManifest[Int]
- val Long: AnyValManifest[Long]
- val Nothing: Manifest[Nothing]
- val Null: Manifest[Null]
- val Object: Manifest[AnyRef]
- val Short: AnyValManifest[Short]
- val Unit: AnyValManifest[Unit]
-
def
abstractType[T](prefix: Manifest[_], name: String, upperBound: Class[_], args: Manifest[_]*): Manifest[T]
Manifest for the abstract type
prefix # name
.Manifest for the abstract type
prefix # name
.upperBound
is not strictly necessary as it could be obtained by reflection. It was added so that erasure can be calculated without reflection. - def arrayType[T](arg: Manifest[_]): Manifest[Array[T]]
-
def
classType[T](prefix: Manifest[_], clazz: Class[_], args: Manifest[_]*): Manifest[T]
Manifest for the class type
clazz[args]
, whereclazz
is a class with non-package prefix typeprefix
and type argumentsargs
. -
def
classType[T](clazz: Class[T], arg1: Manifest[_], args: Manifest[_]*): Manifest[T]
Manifest for the class type
clazz
, whereclazz
is a top-level or static class and args are its type arguments. -
def
classType[T](clazz: Class[_]): Manifest[T]
Manifest for the class type
clazz[args]
, whereclazz
is a top-level or static class.Manifest for the class type
clazz[args]
, whereclazz
is a top-level or static class.- Note
This no-prefix, no-arguments case is separate because we it's called from ScalaRunTime.boxArray itself. If we pass varargs as arrays into this, we get an infinitely recursive call to boxArray. (Besides, having a separate case is more efficient)
-
def
intersectionType[T](parents: Manifest[_]*): Manifest[T]
Manifest for the intersection type
parents_0 with ... with parents_n
. -
def
singleType[T <: AnyRef](value: AnyRef): Manifest[T]
Manifest for the singleton type
value.type
. - def valueManifests: List[AnyValManifest[_]]
-
def
wildcardType[T](lowerBound: Manifest[_], upperBound: Manifest[_]): Manifest[T]
Manifest for the unknown type
_ >: L <: U
in an existential.
This is the documentation for the Scala standard library.
Package structure
The scala package contains core types like
Int
,Float
,Array
orOption
which are accessible in all Scala compilation units without explicit qualification or imports.Notable packages include:
scala.collection
and its sub-packages contain Scala's collections frameworkscala.collection.immutable
- Immutable, sequential data-structures such asVector
,List
,Range
,HashMap
orHashSet
scala.collection.mutable
- Mutable, sequential data-structures such asArrayBuffer
,StringBuilder
,HashMap
orHashSet
scala.collection.concurrent
- Mutable, concurrent data-structures such asTrieMap
scala.collection.parallel.immutable
- Immutable, parallel data-structures such asParVector
,ParRange
,ParHashMap
orParHashSet
scala.collection.parallel.mutable
- Mutable, parallel data-structures such asParArray
,ParHashMap
,ParTrieMap
orParHashSet
scala.concurrent
- Primitives for concurrent programming such asFutures
andPromises
scala.io
- Input and output operationsscala.math
- Basic math functions and additional numeric types likeBigInt
andBigDecimal
scala.sys
- Interaction with other processes and the operating systemscala.util.matching
- Regular expressionsOther packages exist. See the complete list on the right.
Additional parts of the standard library are shipped as separate libraries. These include:
scala.reflect
- Scala's reflection API (scala-reflect.jar)scala.xml
- XML parsing, manipulation, and serialization (scala-xml.jar)scala.swing
- A convenient wrapper around Java's GUI framework called Swing (scala-swing.jar)scala.util.parsing
- Parser combinators, including an example implementation of a JSON parser (scala-parser-combinators.jar)Automatic imports
Identifiers in the scala package and the
scala.Predef
object are always in scope by default.Some of these identifiers are type aliases provided as shortcuts to commonly used classes. For example,
List
is an alias forscala.collection.immutable.List
.Other aliases refer to classes provided by the underlying platform. For example, on the JVM,
String
is an alias forjava.lang.String
.