From the MSDN documentation I understand that if Run is implemented it will be called automatically at the end of the computational expression. It says that:
I want to be able to write a computation expression in F# that will be able to retry an operation if it throws an exception. Right now my code looks like:
I need a different behavior for do! and let! in my custom computation expression. I try to achieve this in the following way:
If you define a While method of the builder-object, you can use while-loops in your computation expressions. The signature of the While method is:
F# is giving me some trouble with its type inference rules. I\'m writing a simple computation builder but can\'t get my generic type variable constraints right.
trying to follow example in the expert f# book, and having an issue with the workflows...the code is as follows:
Some background first. I am currently learning some stuff about monadic parser combinators. While I tried to transfer the \'chainl1\' function from this paper (p. 16-17), I came up with this solution:
I\'m reading the book Real-world functional programming by Tomas Petricek and Jon Skeet and I\'m having a hard time digesting the section on computation expressions1) (aka monads).
This code: type Result = Success of string type Tracer() = member x.Bind(p: Result, rest: (string -> Result)) =
加载中,请稍侯......