Created
September 28, 2017 15:32
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Those cases here show when allocations happen without being want.
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| type WhoDesignedThisAnyway = | |
| { Field: string } | |
| /// allocates two functions, and a tuple each time this is called. | |
| static member Lens = (fun x -> x.Field), (fun v x -> {x with Field = v }) | |
| module WhoDesignedThisAnyway = | |
| /// doesn't allocate | |
| let Lens2 = (fun x -> x.Field), (fun v x -> {x with Field = v }) |
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