object OptionValues extends OptionValues
Companion object that facilitates the importing of OptionValues
members as
an alternative to mixing it in. One use case is to import OptionValues
's members so you can use
value
on option in the Scala interpreter:
$ scala -cp scalatest-1.7.jar Welcome to Scala version 2.9.1.final (Java HotSpot(TM) 64-Bit Server VM, Java 1.6.0_29). Type in expressions to have them evaluated. Type :help for more information. scala> import org.scalatest._ import org.scalatest._ scala> import matchers.Matchers._ import matchers.Matchers._ scala> import OptionValues._ import OptionValues._ scala> val opt1: Option[Int] = Some(1) opt1: Option[Int] = Some(1) scala> val opt2: Option[Int] = None opt2: Option[Int] = None scala> opt1.value should be < 10 scala> opt2.value should be < 10 org.scalatest.TestFailedException: The Option on which value was invoked was not defined. at org.scalatest.OptionValues$Valuable.value(OptionValues.scala:68) at .<init>(<console>:18) ...
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- OptionValues.scala
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Type Members
- class Valuable[T] extends AnyRef
Wrapper class that adds a
value
method toOption
, allowing you to make statements like:Wrapper class that adds a
value
method toOption
, allowing you to make statements like:opt.value should be > 9
- Definition Classes
- OptionValues
Value Members
- final def !=(arg0: Any): Boolean
- Definition Classes
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- final def ##(): Int
- Definition Classes
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- final def ==(arg0: Any): Boolean
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- final def asInstanceOf[T0]: T0
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- def clone(): AnyRef
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- protected[java.lang]
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- Annotations
- @throws(classOf[java.lang.CloneNotSupportedException]) @native()
- implicit def convertOptionToValuable[T](opt: Option[T])(implicit pos: Position): Valuable[T]
Implicit conversion that adds a
value
method toOption
.Implicit conversion that adds a
value
method toOption
.- opt
the
Option
on which to add thevalue
method
- Definition Classes
- OptionValues
- final def eq(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- def equals(arg0: AnyRef): Boolean
- Definition Classes
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- def finalize(): Unit
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- protected[java.lang]
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- @throws(classOf[java.lang.Throwable])
- final def getClass(): Class[_ <: AnyRef]
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- @native()
- def hashCode(): Int
- Definition Classes
- AnyRef → Any
- Annotations
- @native()
- final def isInstanceOf[T0]: Boolean
- Definition Classes
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- final def ne(arg0: AnyRef): Boolean
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- final def notify(): Unit
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- @native()
- final def notifyAll(): Unit
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- @native()
- final def synchronized[T0](arg0: => T0): T0
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- def toString(): String
- Definition Classes
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- final def wait(): Unit
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- Annotations
- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long, arg1: Int): Unit
- Definition Classes
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- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long): Unit
- Definition Classes
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- @throws(classOf[java.lang.InterruptedException]) @native()