On 12/06/2022 19:21, Larry Garfield wrote:
On Thu, Jun 9, 2022, at 11:34 AM, Larry Garfield wrote:
A little data:
I used Nikita's project analyzer on the top 1000 projects to get a rough sense of how
long-closures are used now. All usual caveats apply about such survey data. I was
specifically looking at how many `use` statements a closure typically had, and how many
statements it typically had. Mainly, I am interested in how common "really long
closures where the developer is likely to lose track of what is and isn't closed
over" are.
Total closures: 20052
Total used variables: 11534
Did many of those closures use "pass by reference" in the use clause,
because that's one real differentiator between traditional closures and
short lambdas. There's also the fact that use values are bound at the
point where the closure is defined, not where it's called (if they even
exist at all at that point), although that's probably more difficult to
determine.
--
Mark Baker
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