[Issue 20235] C++ ABI doesn't destruct struct arguments in the callee

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20235

--- Comment #6 from Dlang Bot <dlang-bot at dlang.rocks> ---
dlang/dmd pull request #12162 "Issue 20235 - Simplify fix by not declaring
__gate" was merged into master:

- 1c681d504f5b696c09d1755bb3630dc1790c61ff by Martin Kinkelin:
  Issue 20235 - Simplify fix by not declaring __gate

  Following Martin Kinkelin's comment in PR #12012:
  > We have the edtor `=> (__gate || edtor)` rewrite.
  > IIRC, the whole point of this `__gate` is to transfer ownership
  > of all temporary args requiring destruction to the callee just before the
call
  > (i.e., if all arguments were constructed successfully without throw).
  > For `extern(D)`, it's up to the callee to destruct the parameter
  > [which, low-level wise, is either the original argument passed by ref or a
moved/blitted instance].
  >
  > So if `callerDestroysArgs == true`, it should suffice to keep the original
`edtor`
  > and not declaring+setting `__gate`.

  Source: https://github.com/dlang/dmd/pull/12012#event-4259809188

https://github.com/dlang/dmd/pull/12162

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