Snippets tagged #active patterns
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Implicit conversion to discriminated union
SRTP and active patterns tricks for mimicking Typescript union types
8 people like this
Like the snippet!Posted: 8 years ago by Evgeniy Andreev
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Null Value guard active pattern
An active pattern that protects from null reference exceptions stemming from pattern matches on values materialized by .NET libraries such as Newtonsoft.Json
3 people like this
Like the snippet!Posted: 7 years ago by Eirik Tsarpalis
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Automatically compile LaTeX documents
A simple script that automatically recompiles LaTeX documents when they are saved. Works nicely when editing papers in Atom and using SumatraPDF for preview (Sumatra automatically reloads PDF documents). Does not report errors or anything clever (!)
1 people like this
Like the snippet!Posted: 5 years ago by Tomas Petricek
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Generic TryParse active pattern
We can use active patterns for parsing values of types with defined TryParse methods.
6 people like this
Like the snippet!Posted: 4 years ago by Evgeniy Andreev
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Convert byte array to binary string
Recursive function for converting byte array to binary string
2 people like this
Like the snippet!Posted: 4 years ago by Martin Lockstrom
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Methods deconstruction via active patterns
We can use active patterns for methods deconstruction. It allow to hide some rough SRTP syntax.
11 people like this
Like the snippet!Posted: 7 years ago by Evgeniy Andreev
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Default parameter value. Useful for ASP.NET controllers
Usage: [
1 people like this] member __.Image (image, DefaultValue 1024 width, DefaultValue 768 height)
Like the snippet!Posted: 6 years ago by Yuri Martynov
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Use of Active Patterns to convert integer to Roman numerals
A good use case for demonstrating the use of active patterns
6 people like this
Like the snippet!Posted: 5 years ago by Faisal Waris
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Recursive active pattern for expanding list quotations
This is a recursive active pattern for extracting the elements of a list quotation as a list of Exprs, There doesn't seem to be a List pattern in the standard library. The compiler will complain about this recursive pattern unless you use #nowarn "40".
4 people like this
Like the snippet!Posted: 4 years ago by allisterb
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Statically typed regex pattern matching
Active pattern returning list of captured groups with parsing.
0 people like this
Like the snippet!Posted: 3 years ago by Evgeniy Andreev