Snippets tagged discriminated unions
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IRC Jokes
Simple snippet that demonstrates recursively defined discriminated unions, the Y combinator (for encoding recursive functions) and recursive processing of tree-like structures
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Like the snippet!Posted: 13 years ago by Daniel Jackson
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Tesco in 70 lines of code
Domain model for the Tesco checkout implemented in F# using discriminated unions (in 20 lines of code) and console-based user interface for scanning products and calculating the total price.
5 people like this
Like the snippet!Posted: 12 years ago by Tomas Petricek
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Defining union cases that have the cons ( :: ) pattern
Here I give an example of a data structure known as a skew binary list and also an example of how to use the cons pattern, normally reserved for FSharp lists, in your own union cases. It is not possible to do the same with the nil union case, []. Nor is it possible to use any other symbols (as far as I know). This kind of sucks.
2 people like this
Like the snippet!Posted: 11 years ago by Greg Ros
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Union Editor for WinForms PropertyGrid
A quick-and-dirty editor for discriminated unions in a property grid. I use this for editing trees of F# records and unions. Note that any records must have a "Default" static property which returns a default instance.
3 people like this
Like the snippet!Posted: 12 years ago by Rick Minerich
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Splitting sequences of arbitrary unions
A small snippet that groups sequences of arbitrary unions by branch type.
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Like the snippet!Posted: 11 years ago by Eirik Tsarpalis
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Inverse map for parsing DU cases
Neat trick to improve safety
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Like the snippet!Posted: 2 years ago by Evgeniy Andreev