[Issue 22768] lazy does not cache its results

d-bugmail at puremagic.com d-bugmail at puremagic.com
Sun Feb 13 13:12:36 UTC 2022


https://issues.dlang.org/show_bug.cgi?id=22768

Stanislav Blinov <stanislav.blinov at gmail.com> changed:

           What    |Removed                     |Added
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             Status|NEW                         |RESOLVED
                 CC|                            |stanislav.blinov at gmail.com
         Resolution|---                         |INVALID

--- Comment #1 from Stanislav Blinov <stanislav.blinov at gmail.com> ---
The spec does not mandate such behavior:
https://dlang.org/spec/function.html#lazy-params

The compiler *could* cache results if resulting delegate was strongly pure
(https://dlang.org/spec/function.html#pure-functions #17), but even that is
left up to the implementation, and `lazy` fails to infer attributes anyway.

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