Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with
or
.
Download ZIP
Fetching contributors…

Cannot retrieve contributors at this time

30 lines (28 sloc) 1.404 kB
/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2002-2011, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
package scala.annotation
/** An annotation to be applied to a match expression. If present,
* the compiler will verify that the match has been compiled to a
* [[http://java.sun.com/docs/books/jvms/second_edition/html/Instructions2.doc14.html tableswitch]]
* or [[http://java.sun.com/docs/books/jvms/second_edition/html/Instructions2.doc8.html#lookupswitch lookupswitch]]
* and issue an error if it instead compiles into a series of conditional expressions.
* Example usage:
{{{
val Constant = 'Q'
def tokenMe(ch: Char) = (ch: @switch) match {
case ' ' | '\t' | '\n' => 1
case 'A' | 'Z' | '$' => 2
case '5' | Constant => 3 // a non-literal may prevent switch generation: this would not compile
case _ => 4
}
}}}
*
* @author Paul Phillips
* @since 2.8
*/
final class switch extends annotation.StaticAnnotation
Jump to Line
Something went wrong with that request. Please try again.