[Issue 20581] DIP1000 wrongly flags hidden ref temporary

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20581

--- Comment #4 from moonlightsentinel at disroot.org ---
(In reply to kinke from comment #3)
> This seems to be a 2.091 regression.

That a side effect of https://github.com/dlang/dmd/pull/10550 which made dmd
use ref whenever possible. This avoids behaviour changes due to additional
constructor/destructor calls when -checkaction=context is used.

> Using an explicit non-temporary still works, with an equivalent lifetime of the temporary:

DIP1000 handles variables from different statements just fine but struggles if
multiple temporaries are used within a single statement. Note that this problem
is not tied to -checkaction=context, see e.g.
https://github.com/dlang/dmd/pull/10550#issuecomment-559996626

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