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compressed map and getOrElse into if-else

This commit is contained in:
e.e d3si9n 2011-11-26 01:41:24 -05:00
parent 546e7d9bad
commit 6d9aeb94e0
1 changed files with 8 additions and 7 deletions
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15
main/Project.scala
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@ -350,17 +350,18 @@ object Project extends Init[Scope] with ProjectExtra
final case class ScopedKeyData[A](scoped: ScopedKey[A], value: Any) final case class ScopedKeyData[A](scoped: ScopedKey[A], value: Any)
{ {
import Types.const
val key = scoped.key val key = scoped.key
val scope = scoped.scope val scope = scoped.scope
def typeName: String = fold("Task[%s]" format _, "InputTask[%s]" format _, key.manifest.toString) def typeName: String = fold(fmtMf("Task[%s]"), fmtMf("InputTask[%s]"), key.manifest.toString)
def settingValue: Option[Any] = fold(_ => None, _ => None, Some(value)) def settingValue: Option[Any] = fold(const(None), const(None), Some(value))
def description: String = fold("Task: %s" format _, "Input task: %s" format _, def description: String = fold(fmtMf("Task: %s"), fmtMf("Input task: %s"),
"Setting: %s = %s" format (key.manifest.toString, value.toString)) "Setting: %s = %s" format (key.manifest.toString, value.toString))
def fold[A](targ: OptManifest[_] => A, itarg: OptManifest[_] => A, s: => A): A = def fold[A](targ: OptManifest[_] => A, itarg: OptManifest[_] => A, s: => A): A =
taskTypeArg map {targ(_)} getOrElse {inputTaskTypeArg map {itarg(_)} getOrElse {s}} if (key.manifest.erasure == classOf[Task[_]]) targ(key.manifest.typeArguments.head)
private[this] def taskTypeArg = if (key.manifest.erasure == classOf[Task[_]]) Some(firstType) else None else if (key.manifest.erasure == classOf[InputTask[_]]) itarg(key.manifest.typeArguments.head)
private[this] def inputTaskTypeArg = if (key.manifest.erasure == classOf[InputTask[_]]) Some(firstType) else None else s
private[this] def firstType: OptManifest[_] = key.manifest.typeArguments.head def fmtMf(s: String): OptManifest[_] => String = s format _
} }
trait ProjectExtra trait ProjectExtra