sealed abstract class IO[A] extends AnyRef
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- IO.scala
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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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final
def
asInstanceOf[T0]: T0
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def
bracket[B, C](after: (A) ⇒ IO[B])(during: (A) ⇒ IO[C]): IO[C]
Applies the "during" action, calling "after" regardless of whether there was an exception.
Applies the "during" action, calling "after" regardless of whether there was an exception. All exceptions are rethrown. Generalizes try/finally.
- def bracketIO[M[_], B](after: (A) ⇒ IO[Unit])(during: (A) ⇒ M[B])(implicit m: MonadControlIO[M]): M[B]
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def
bracketOnError[B, C](after: (A) ⇒ IO[B])(during: (A) ⇒ IO[C]): IO[C]
A variant of "bracket" that performs the final action only if there was an error.
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def
bracket_[B, C](after: IO[B])(during: IO[C]): IO[C]
A variant of "bracket" where the return value of this computation is not needed.
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def
catchLeft: IO[\/[Throwable, A]]
Returns a disjunction result which is right if no exception was raised, or left if an exception was raised.
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def
catchSome[B](p: (Throwable) ⇒ Option[B], handler: (B) ⇒ IO[A]): IO[A]
Executes the handler for exceptions that are raised and match the given predicate.
Executes the handler for exceptions that are raised and match the given predicate. Other exceptions are rethrown.
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def
catchSomeLeft[B](p: (Throwable) ⇒ Option[B]): IO[\/[B, A]]
Like "catchLeft" but takes a predicate to select which exceptions are caught.
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def
clone(): AnyRef
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- protected[java.lang]
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- @native() @throws( ... )
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def
ensuring[B](sequel: IO[B]): IO[A]
Like "bracket", but takes only a computation to run afterward.
Like "bracket", but takes only a computation to run afterward. Generalizes "finally".
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final
def
eq(arg0: AnyRef): Boolean
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def
equals(arg0: Any): Boolean
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def
except(handler: (Throwable) ⇒ IO[A]): IO[A]
Executes the handler if an exception is raised.
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def
finalize(): Unit
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- @throws( classOf[java.lang.Throwable] )
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def
flatMap[B](f: (A) ⇒ IO[B]): IO[B]
Continues this action with the given action.
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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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def
liftIO[M[_]](implicit m: LiftIO[M]): M[A]
Lift this action to a given IO-like monad.
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def
map[B](f: (A) ⇒ B): IO[B]
Continues this action with the given function.
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final
def
ne(arg0: AnyRef): Boolean
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final
def
notify(): Unit
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- @native()
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final
def
notifyAll(): Unit
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def
onException[B](action: IO[B]): IO[A]
Like "finally", but only performs the final action if there was an exception.
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final
def
synchronized[T0](arg0: ⇒ T0): T0
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def
toString(): String
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def
unsafeInterleaveIO(): IO[Free.Trampoline[A]]
Constructs an IO action whose steps may be interleaved with another.
Constructs an IO action whose steps may be interleaved with another. An unsafe operation, since it exposes a trampoline that allows one to step through the components of the IO action.
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def
unsafePerformIO(): A
Runs I/O and performs side-effects.
Runs I/O and performs side-effects. An unsafe operation. Do not call until the end of the universe.
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def
unsafeZip[B](iob: IO[B]): IO[(A, B)]
Interleaves the steps of this IO action with the steps of another, yielding the results of both.
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def
unsafeZipWith[B, C](iob: IO[B], f: (A, B) ⇒ C): IO[C]
Interleaves the steps of this IO action with the steps of another, consuming the results of both with the given function.
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def
unsafeZip_[B](iob: IO[B]): IO[B]
Interleaves the steps of this IO action with the steps of another, ignoring the result of this action.
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def
using[C](f: (A) ⇒ IO[C])(implicit resource: Resource[A]): IO[C]
An automatic resource management.
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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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