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Related Doc:
package eff
apply a function to an Eff value using the applicative instance
apply a function to an Eff value using the applicative instance
try to execute an action an report any issue
try to execute an action an report any issue
Attempt to execute a safe action including finalizers
Attempt to execute a safe action including finalizers
get a resource A and use it.
get a resource A and use it. Call the release function whether an exception is thrown or not when using the resource
NOTE: Eff interpreters are independent so if there is an effect short-circuiting all computations inside 'use', like Option or Either then the release function will not be called. If you want to make sure that the release function is always called "at the end of the world and whatever happens" you need to call Eff.bracketLast
bracket an action with one last action to execute at the end of the program
bracket an action with one last action to execute at the end of the program
evaluate first action possibly having error effects
evaluate first action possibly having error effects
Execute a second action if the first one is not successful, based on the error
use the internal effect as one of the stack effects
use the internal effect as one of the stack effects
peel-off the only present effect
peel-off the only present effect
peel-off the only present effect
peel-off the only present effect
peel-off the only present effect, using an Applicative instance where possible
peel-off the only present effect, using an Applicative instance where possible
peel-off the only present effect, using an Applicative instance where possible
peel-off the only present effect, using an Applicative instance where possible
An Eff[R, A] value can be transformed into an Eff[U, A] value provided that all the effects in R are also in U
An Eff[R, A] value can be transformed into an Eff[U, A] value provided that all the effects in R are also in U
Monad implementation for the Eff[R, ?] type
Monad implementation for the Eff[R, ?] type
run a safe effect but drop the finalizer errors
run a safe effect but drop the finalizer errors
use the applicative instance of Eff to traverse a list of values, then flatten it
use the applicative instance of Eff to traverse a list of values, then flatten it
ignore one possible exception that could be thrown
ignore one possible exception that could be thrown
create a delayed impure value
create a delayed impure value
create a delayed impure value
create a delayed impure value
create a impure value from an union of effects and a continuation
create a impure value from an union of effects and a continuation
evaluate first action possibly having exceptions
evaluate first action possibly having exceptions
Execute a second action if the first one is not successful
create a pure value
create a pure value
evaluate first action possibly having error effects
evaluate first action possibly having error effects
Execute a second action if the first one is not successful and second is defined for the error
base runner for an Eff value having no effects at all the execution is trampolined using Eval
base runner for an Eff value having no effects at all the execution is trampolined using Eval
get the pure value if there is no effect
get the pure value if there is no effect
Run a safe effect
Run a safe effect
Collect finalizer exceptions if any
run a writer effect and return the list of written values
run a writer effect and return the list of written values
This uses a ListBuffer internally to append values
More general fold of runWriter where we can use a fold to accumulate values in a mutable buffer
More general fold of runWriter where we can use a fold to accumulate values in a mutable buffer
Run a side-effecting fold
Run a side-effecting fold
create an Eff[R, A] value from an effectful value of type T[V] provided that T is one of the effects of R
create an Eff[R, A] value from an effectful value of type T[V] provided that T is one of the effects of R
use the applicative instance of Eff to sequence a list of values
use the applicative instance of Eff to sequence a list of values
write a given value
write a given value
evaluate first action possibly having error effects execute a second action whether the first is successful or not but keep track of finalizer exceptions
evaluate first action possibly having error effects execute a second action whether the first is successful or not but keep track of finalizer exceptions
use the applicative instance of Eff to traverse a list of values
use the applicative instance of Eff to traverse a list of values
create an Eff value for ()
create an Eff value for ()
evaluate first action possibly throwing exceptions
evaluate first action possibly throwing exceptions
Execute a second action if the first one is not successful, based on the exception
The final value type is the same as the original type
attach a clean-up action to the continuation (if any)
attach a clean-up action to the continuation (if any)
evaluate first action possibly throwing exceptions
evaluate first action possibly throwing exceptions
Execute a second action if the first one is not successful and second is defined for the error
The final value type is the same as the original type