trait App extends DefaultArgsApp with DelayedInit
Have a case class extend this trait for its fields to become command line arguments, and its body the core of your app using these.
Extends DelayedInit
, so that the body of the case class gets called later.
Remaining arguments are accessible via the method remainingArgs
.
Example
case class Foo( i: Int, foo: String ) extends App { // core of your app, using the fields above } object FooApp extends AppOf[Foo]
In the example above, FooApp
now has a main
method, that parses the arguments it is given,
and matches these to the fields i
(-i 2
gives i
the value 2
) and foo
(--foo ab
gives foo
the value "ab"
) of Foo
. It also accepts --help
/ -h
/ --usage
arguments,
and prints help or usage messages when these are present.
- Annotations
- @deprecated
- Deprecated
(Since version 1.2.0-M2) See CaseApp instead
Linear Supertypes
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Inherited
- App
- DelayedInit
- DefaultArgsApp
- ArgsApp
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final
def
!=(arg0: Any): Boolean
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final
def
##(): Int
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final
def
==(arg0: Any): Boolean
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- def apply(): Unit
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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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def
delayedInit(body: ⇒ Unit): Unit
- Definition Classes
- App → DelayedInit
-
final
def
eq(arg0: AnyRef): Boolean
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def
equals(arg0: Any): Boolean
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def
finalize(): Unit
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final
def
getClass(): Class[_]
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def
hashCode(): Int
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final
def
isInstanceOf[T0]: Boolean
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final
def
ne(arg0: AnyRef): Boolean
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final
def
notify(): Unit
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final
def
notifyAll(): Unit
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-
def
remainingArgs: Seq[String]
- Definition Classes
- DefaultArgsApp → ArgsApp
-
def
setRemainingArgs(remainingArgs: Seq[String], extraArgs: Seq[String]): Unit
- Definition Classes
- DefaultArgsApp → ArgsApp
-
final
def
synchronized[T0](arg0: ⇒ T0): T0
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def
toString(): String
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final
def
wait(): Unit
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final
def
wait(arg0: Long, arg1: Int): Unit
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final
def
wait(arg0: Long): Unit
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