Snippets tagged computation builder
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Disposable computation builder
Computation builder that provides easy way of constructing IDisposable objects. It supports elegant composition of disposable objects using 'do!' which can be used for example when working with 'IObservable' type.
42 people like this
Like the snippet!Posted: 13 years ago by Tomas Petricek
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Imperative computation builder
Defines an F# computation builder for encoding imperative computations. The 'return' construct returns immediately and terminates the rest of the computation. It is also possible to return value from a 'for' or 'while' loop.
11 people like this
Like the snippet!Posted: 13 years ago by Tomas Petricek
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LazyBuilder
I made LazyBuilder. The synthesis of the lazy function is troublesome. When the call of the Force() method increases, it is ugly. This solves the problem.
11 people like this
Like the snippet!Posted: 13 years ago by zecl
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Permutation and Combination
Permutation and Combination using ListBuilder.
16 people like this
Like the snippet!Posted: 13 years ago by zecl
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Delimited Continuation Monad
Oleg's delimited continuation monad [1] and creating an external iterator from an internal iterator using it. [1] http://okmij.org/ftp/continuations/implementations.html#genuine-shift
6 people like this
Like the snippet!Posted: 13 years ago by einblicker
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Simple builder example: Nullable
Simple Computational expressions / monad / builder -example, using .NET Nullable as demo.
3 people like this
Like the snippet!Posted: 12 years ago by Tuomas Hietanen
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asyncChoose Computational Expression
A simple computational expression to deal with asynchronous calls that return a choice type to signal failure. Useful for calling remote services that may fail - you can call the remote service with functions of type "request -> Async
1 people like this
Like the snippet!Posted: 10 years ago by mavnn
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Fold functions over static values builder
Fold it!
1 people like this
Like the snippet!Posted: 2 years ago by Evgeniy Andreev
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Computation Expression Stub
Stubbed methods for a computation expression with some explanations
7 people like this
Like the snippet!Posted: 10 months ago by Jimmy Byrd
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Enumerator computation builder
The snippet defines computation builder for working with IEnumerator. The bind operation (let!) reads next element from the enumerator, so the computation can be used for expressing things that cannot be written just using seq.
29 people like this
Like the snippet!Posted: 13 years ago by Tomas Petricek
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Computation Builder for Cartesian Products
Sample framework for computing Cartesian products using a computation builder.
12 people like this
Like the snippet!Posted: 13 years ago by TechNeilogy
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Tiny IO Monad
Haskell-style IO in F#.
16 people like this
Like the snippet!Posted: 13 years ago by igeta
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Clumsy LoopBuilder
Clumsy LoopBuilder.It's mischievous trick.
5 people like this
Like the snippet!Posted: 13 years ago by zecl
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Non-deterministic computation builder
Computation builder for writing non-deterministic computations.
8 people like this
Like the snippet!Posted: 13 years ago by Tomas Petricek
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Sum of Squares Monoid
This snippet defines a computation builder that sums the squares of float values. It includes Combine, Zero, Yield, Delay, and For operations.
2 people like this
Like the snippet!Posted: 12 years ago by Joel Huang
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WPF async access.
Computation builder for async access.
1 people like this
Like the snippet!Posted: 7 years ago by Zhukoff Dima
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Disposable Scopes provided by scope {...} computational workflow.
This snippet provides a builder for scope {...} computational workflow that returns a Scope object implementing System.IDisposable interface. All "use" bindings inside scope {...} workflow are kept from being disposed immediately when computation leaves scope. Instead, they are disposed only when resulting Scope object is disposed. This makes possible to access disposable outside the scope while it remains usable. This can be achieved by via return statement of workflow that can return, for example, a closure that encapsulates disposable. scope {...} return value is available through Value property of Scope object. Scopes may be nested through let! binding that means that nested scope will be disposed when the resulting scope is disposed.
3 people like this
Like the snippet!Posted: 2 years ago by Crazy Monk