Created
February 17, 2013 21:59
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Lazy pattern matching in Scala.
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| Welcome to Scala version 2.10.0 (Java HotSpot(TM) 64-Bit Server VM, Java 1.7.0_05). | |
| Type in expressions to have them evaluated. | |
| Type :help for more information. | |
| scala> def foo = { println("foo"); "foo" } | |
| foo: String | |
| scala> def bar = { println("bar"); "bar" } | |
| bar: String | |
| scala> def baz = { println("baz"); "baz" } | |
| baz: String | |
| scala> lazy val List(a, b, c) = List(foo, bar, baz) | |
| a: String = <lazy> | |
| b: String = <lazy> | |
| c: String = <lazy> | |
| scala> a | |
| foo | |
| bar | |
| baz | |
| res0: String = foo | |
| scala> b | |
| res1: String = bar | |
| scala> c | |
| res2: String = baz |
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https://issues.scala-lang.org/browse/SI-7141