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Sample Port of F# Uservoice Suggestions
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Allow upcast in type test pattern (inside computation expression) #9

Closed cloudRoutine closed 7 years ago

cloudRoutine commented 7 years ago

Allow upcast in type test pattern (inside computation expression) [10596684]

Submitted by Sehnsucht on 11/7/2015 12:00:00 AM
[ 1 votes ]

See this SO subject along with Tomas response ; that convey pretty well what i mean (as my english is rubbish). http://stackoverflow.com/questions/33585508/why-this-for-type-test-pattern-fails

Response

\ by fslang-admin on 1/23/2016 12:00:00 AM **

See comment above Don Syme, F# Language Evolution

cloudRoutine commented 7 years ago

Posted by Don Syme on 1/23/2016 11:47:00 AM

Perhaps I don't fully understand the suggestion. However essentially we decided against this in the design of computation expressions, instead the recommendation is to use "match" if doing a runtime type test, and ":>" if doing a static cast.