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<h2>Scala mode</h2>
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/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2003-2011, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
package scala.collection
import generic._
import mutable.{ Builder, ListBuffer }
import annotation.{tailrec, migration, bridge}
import annotation.unchecked.{ uncheckedVariance => uV }
import parallel.ParIterable
/** A template trait for traversable collections of type `Traversable[A]`.
*
* $traversableInfo
* @define mutability
* @define traversableInfo
* This is a base trait of all kinds of $mutability Scala collections. It
* implements the behavior common to all collections, in terms of a method
* `foreach` with signature:
* {{{
* def foreach[U](f: Elem => U): Unit
* }}}
* Collection classes mixing in this trait provide a concrete
* `foreach` method which traverses all the
* elements contained in the collection, applying a given function to each.
* They also need to provide a method `newBuilder`
* which creates a builder for collections of the same kind.
*
* A traversable class might or might not have two properties: strictness
* and orderedness. Neither is represented as a type.
*
* The instances of a strict collection class have all their elements
* computed before they can be used as values. By contrast, instances of
* a non-strict collection class may defer computation of some of their
* elements until after the instance is available as a value.
* A typical example of a non-strict collection class is a
* <a href="../immutable/Stream.html" target="ContentFrame">
* `scala.collection.immutable.Stream`</a>.
* A more general class of examples are `TraversableViews`.
*
* If a collection is an instance of an ordered collection class, traversing
* its elements with `foreach` will always visit elements in the
* same order, even for different runs of the program. If the class is not
* ordered, `foreach` can visit elements in different orders for
* different runs (but it will keep the same order in the same run).'
*
* A typical example of a collection class which is not ordered is a
* `HashMap` of objects. The traversal order for hash maps will
* depend on the hash codes of its elements, and these hash codes might
* differ from one run to the next. By contrast, a `LinkedHashMap`
* is ordered because it's `foreach` method visits elements in the
* order they were inserted into the `HashMap`.
*
* @author Martin Odersky
* @version 2.8
* @since 2.8
* @tparam A the element type of the collection
* @tparam Repr the type of the actual collection containing the elements.
*
* @define Coll Traversable
* @define coll traversable collection
*/
trait TraversableLike[+A, +Repr] extends HasNewBuilder[A, Repr]
with FilterMonadic[A, Repr]
with TraversableOnce[A]
with GenTraversableLike[A, Repr]
with Parallelizable[A, ParIterable[A]]
{
self =>
import Traversable.breaks._
/** The type implementing this traversable */
protected type Self = Repr
/** The collection of type $coll underlying this `TraversableLike` object.
* By default this is implemented as the `TraversableLike` object itself,
* but this can be overridden.
*/
def repr: Repr = this.asInstanceOf[Repr]
/** The underlying collection seen as an instance of `$Coll`.
* By default this is implemented as the current collection object itself,
* but this can be overridden.
*/
protected[this] def thisCollection: Traversable[A] = this.asInstanceOf[Traversable[A]]
/** A conversion from collections of type `Repr` to `$Coll` objects.
* By default this is implemented as just a cast, but this can be overridden.
*/
protected[this] def toCollection(repr: Repr): Traversable[A] = repr.asInstanceOf[Traversable[A]]
/** Creates a new builder for this collection type.
*/
protected[this] def newBuilder: Builder[A, Repr]
protected[this] def parCombiner = ParIterable.newCombiner[A]
/** Applies a function `f` to all elements of this $coll.
*
* Note: this method underlies the implementation of most other bulk operations.
* It's important to implement this method in an efficient way.
*
*
* @param f the function that is applied for its side-effect to every element.
* The result of function `f` is discarded.
*
* @tparam U the type parameter describing the result of function `f`.
* This result will always be ignored. Typically `U` is `Unit`,
* but this is not necessary.
*
* @usecase def foreach(f: A => Unit): Unit
*/
def foreach[U](f: A => U): Unit
/** Tests whether this $coll is empty.
*
* @return `true` if the $coll contain no elements, `false` otherwise.
*/
def isEmpty: Boolean = {
var result = true
breakable {
for (x <- this) {
result = false
break
}
}
result
}
/** Tests whether this $coll is known to have a finite size.
* All strict collections are known to have finite size. For a non-strict collection
* such as `Stream`, the predicate returns `true` if all elements have been computed.
* It returns `false` if the stream is not yet evaluated to the end.
*
* Note: many collection methods will not work on collections of infinite sizes.
*
* @return `true` if this collection is known to have finite size, `false` otherwise.
*/
def hasDefiniteSize = true
def ++[B >: A, That](that: GenTraversableOnce[B])(implicit bf: CanBuildFrom[Repr, B, That]): That = {
val b = bf(repr)
if (that.isInstanceOf[IndexedSeqLike[_, _]]) b.sizeHint(this, that.seq.size)
b ++= thisCollection
b ++= that.seq
b.result
}
@bridge
def ++[B >: A, That](that: TraversableOnce[B])(implicit bf: CanBuildFrom[Repr, B, That]): That =
++(that: GenTraversableOnce[B])(bf)
/** Concatenates this $coll with the elements of a traversable collection.
* It differs from ++ in that the right operand determines the type of the
* resulting collection rather than the left one.
*
* @param that the traversable to append.
* @tparam B the element type of the returned collection.
* @tparam That $thatinfo
* @param bf $bfinfo
* @return a new co
毕业设计：基于ASP.NET的博客系统。.zip （736个子文件） 
Global.asax 98B AUTHORS 6KB blank2 2.56MB Web.config 5KB packages.config 4KB Web.config 2KB Web.config 2KB web.config 2KB App.config 2KB Web.Release.config 1KB Web.Debug.config 1KB App.config 894B App.config 894B packages.config 597B packages.config 369B packages.config 297B NuGet.Config 164B HttpHelper.cs 25KB AttachmentController.cs 18KB ArticleController.cs 17KB Verification.cs 10KB BaseRepository.cs 7KB UploadHandler.cs 6KB BaseService.cs 6KB CommonModelService.cs 5KB CategoryService.cs 5KB AccountController.cs 4KB MessageController.cs 4KB JsonResult.cs 4KB ListFileHandler.cs 4KB CrawlerHandler.cs 4KB Picture.cs 4KB Email.cs 4KB CommonModel.cs 4KB ThemeService.cs 4KB CategoryUrlProvider.cs 4KB UserController.cs 4KB TagUrlProvider.cs 3KB CategoryController.cs 3KB AESEncrypt.cs 3KB ArticleUrlProvider.cs 3KB Category.cs 3KB RouteConfig.cs 3KB ProfileController.cs 3KB NavigationViewModel.cs 3KB PredicateBuilder.cs 2KB DESEncrypt.cs 2KB ThemeViewEngine.cs 2KB PathFormater.cs 2KB RegisterViewModel.cs 2KB ThemeController.cs 2KB TagService.cs 2KB CommonModelViewModel.cs 2KB Message.cs 2KB ModelStateExcludeAttribute.cs 2KB MenuController.cs 2KB Attachment.cs 2KB User.cs 2KB TemplateRelevantAttribute.cs 2KB TagController.cs 2KB Startup.cs 2KB InstallController.cs 2KB AttachmentService.cs 2KB HomeController.cs 2KB TemplateRelevantAttribute.cs 1KB Tag.cs 1KB ItemState.cs 1KB AdminAuthorizeAttribute.cs 1KB AssemblyInfo.cs 1KB AssemblyInfo.cs 1KB AssemblyInfo.cs 1KB AssemblyInfo.cs 1KB Config.cs 1KB Article.cs 1KB AttachmentViewModel.cs 1KB AssemblyInfo.cs 1KB HomeController.cs 1KB BundleConfig.cs 1KB ThemeManager.cs 1KB UserService.cs 1KB ChangePasswordViewModel.cs 1KB CategoryController.cs 1KB TagController.cs 1009B ArticleViewModel.cs 987B ModelStateError.cs 979B CommonModelState.cs 962B YouDbContext.cs 939B Configuration.cs 937B YouAreaRegistration.cs 926B Controller.cs 917B LoginViewModel.cs 904B UserState.cs 901B Theme.cs 816B AttachmentType.cs 787B Handler.cs 732B Encryption.cs 709B CategoryType.cs 707B Sha1Encrypt.cs 694B Global.asax.cs 692B AttachmentUsage.cs 684B共 736 条
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