Flaggable

A type class providing evidence for parsing type T as a flag value.

Any class that is to be provided as a flaggable value must have an accompanying implicit Flaggable (contained within a companion object of the class in question) for converting a string to an object of that type. For instance, to make a hypothetical type called Foo flaggable:

class Foo {
  ...
}

object Foo {
  implicit val flagOfFoo = new Flaggable[Foo] {
    def parse(v: String): Foo = {
      ...
    }
  }
}

For simple implicit definitions based on existing String => T functions, use the Flaggable.mandatory function:

object Foo {
  def parse(v: String: Foo = {
     ...
  }

  implicit val ofFoo = Flaggable.mandatory(Foo.parse(_))
}

[1] http://en.wikipedia.org/wiki/Type_class

Linear Supertypes

AnyRef, Any

Instance Constructors

new Flaggable()

Abstract Value Members

abstract def parse(s: String): T

Parse a string (i.e.
Parse a string (i.e. a value set on the command line) into an object of type T.

Concrete Value Members

final def !=(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def ##(): Int

Definition Classes
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final def ==(arg0: Any): Boolean

Definition Classes
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final def asInstanceOf[T0]: T0

Definition Classes
Any
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
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Annotations
@throws( ... )
def default: Option[T]

An optional default value for the Flaggable.
final def eq(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def equals(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
def hashCode(): Int

Definition Classes
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final def isInstanceOf[T0]: Boolean

Definition Classes
Any
final def ne(arg0: AnyRef): Boolean

Definition Classes
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final def notify(): Unit

Definition Classes
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final def notifyAll(): Unit

Definition Classes
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def show(t: T): String

Create a string-representation of an object of type T.
Create a string-representation of an object of type T. Used in Flag.toString.
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

Definition Classes
AnyRef → Any
final def wait(): Unit

Definition Classes
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Annotations
@throws( ... )
final def wait(arg0: Long, arg1: Int): Unit

Definition Classes
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Annotations
@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )

Related Docs: object Flaggable | package app

abstract class Flaggable[T] extends AnyRef

Instance Constructors

new Flaggable()

Abstract Value Members

abstract def parse(s: String): T

Concrete Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def clone(): AnyRef

def default: Option[T]

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

def show(t: T): String

final def synchronized[T0](arg0: ⇒ T0): T0

def toString(): String

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit

Inherited from AnyRef

Inherited from Any

Ungrouped