trait ErrorEffect[F] extends ErrorCreation[F] with ErrorInterpretation[F]
Effect for computation which can fail and return a Throwable, or just stop with a failure
This effect is a mix of Eval and \/ in the sense that every computation passed to this effect (with the ok method) is considered "impure" or "faulty" by default.
The type F is used to represent the failure type.
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type
Error = \/[Throwable, F]
type of errors: exceptions or failure messages
type of errors: exceptions or failure messages
- Definition Classes
- ErrorTypes
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type
ErrorOrOk[A] = \/[Error, Need[A]]
base type for this effect: either an error or a computation to evaluate scala.Name represents "by-name" value: values not yet evaluated
base type for this effect: either an error or a computation to evaluate scala.Name represents "by-name" value: values not yet evaluated
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- ErrorTypes
Value Members
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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
andFinally[R <: Effects, A](action: Eff[R, A], last: Eff[R, Unit])(implicit m: <=[ErrorOrOk, R]): Eff[R, A]
evaluate 1 action possibly having error effects
evaluate 1 action possibly having error effects
Execute a second action whether the first is successful or not
- Definition Classes
- ErrorInterpretation
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final
def
asInstanceOf[T0]: T0
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def
clone(): AnyRef
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final
def
eq(arg0: AnyRef): Boolean
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def
equals(arg0: Any): Boolean
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def
error[R, A](error: Error)(implicit m: <=[ErrorOrOk, R]): Eff[R, A]
create an Eff value from an error
create an Eff value from an error
- Definition Classes
- ErrorCreation
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def
eval[R, A](a: EvalEffect.Eval[A])(implicit m: <=[ErrorOrOk, R]): Eff[R, A]
create an Eff value from a computation
create an Eff value from a computation
- Definition Classes
- ErrorCreation
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def
exception[R, A](t: Throwable)(implicit m: <=[ErrorOrOk, R]): Eff[R, A]
create an Eff value from an exception
create an Eff value from an exception
- Definition Classes
- ErrorCreation
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def
fail[R, A](failure: F)(implicit m: <=[ErrorOrOk, R]): Eff[R, A]
create an Eff value from a failure
create an Eff value from a failure
- Definition Classes
- ErrorCreation
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def
finalize(): Unit
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- protected[java.lang]
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- @throws( classOf[java.lang.Throwable] )
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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
ok[R, A](a: ⇒ A)(implicit m: <=[ErrorOrOk, R]): Eff[R, A]
create an Eff value from a computation
create an Eff value from a computation
- Definition Classes
- ErrorCreation
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def
orElse[R <: Effects, A](action: Eff[R, A], onError: Eff[R, A])(implicit m: <=[ErrorOrOk, R]): Eff[R, A]
evaluate 1 action possibly having error effects
evaluate 1 action possibly having error effects
Execute a second action if the first one is not successful
- Definition Classes
- ErrorInterpretation
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def
runError[R <: Effects, U <: Effects, A](r: Eff[R, A])(implicit m: Aux[ErrorOrOk, R, U]): Eff[U, \/[Error, A]]
Run an error effect.
Run an error effect.
Stop all computation if there is an exception or a failure.
- Definition Classes
- ErrorInterpretation
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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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def
whenFailed[R <: Effects, A](action: Eff[R, A], onError: (Error) ⇒ Eff[R, A])(implicit m: <=[ErrorOrOk, R]): Eff[R, A]
evaluate 1 action possibly having error effects
evaluate 1 action possibly having error effects
Execute a second action if the first one is not successful, based on the error
- Definition Classes
- ErrorInterpretation