mirror of https://github.com/sbt/sbt.git
29 lines
913 B
Scala
29 lines
913 B
Scala
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/* sbt -- Simple Build Tool
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* Copyright 2008,2009 David MacIver, Mark Harrah
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*/
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package xsbt.boot
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import Pre._
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class Enumeration extends NotNull
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{
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def elements: List[Value] = members
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private lazy val members: List[Value] =
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{
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val c = getClass
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val correspondingFields = ListMap( c.getDeclaredFields.map(f => (f.getName, f)) : _*)
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c.getMethods.toList flatMap { method =>
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if(method.getParameterTypes.length == 0 && classOf[Value].isAssignableFrom(method.getReturnType))
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{
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for(field <- correspondingFields.get(method.getName) if field.getType == method.getReturnType) yield
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method.invoke(this).asInstanceOf[Value]
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}
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else
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Nil
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}
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}
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def value(s: String) = new Value(s)
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class Value(override val toString: String) extends NotNull
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def toValue(s: String): Value = elements.find(_.toString == s).getOrElse(error("Expected one of " + elements.mkString(",") + " (got: " + s + ")"))
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}
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