To avoid accidental memory leaks on account of using raw pointers,
use Ref<TextureBase> as method return type except at Dawn interface
boundaries.
Change-Id: I6459062ee28984de2cb1d5a2059bc70cf82b2faf
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/19580
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Rafael Cintron <rafael.cintron@microsoft.com>
Ref<T> specialization will allow us to, in a future change, return
Result<Ref<T>> instances from Create methods while still keeping the
tagged pointer optimization.
Change-Id: I20c764358af22ba1dc53458d59b0b2b4770a0c6a
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/19801
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Rafael Cintron <rafael.cintron@microsoft.com>
The way in which the Result class is used in Dawn can be fragile
with respect to memory management because the caller of AcquireError
must know they need to delete the returned pointer or a memory leak
will occur. We've had a couple of instances where developers have
accidentally left out the delete call and managed to get past code
review.
This CL changes the Result class so that it assumes the error is
allocated on the heap and forces the caller to use unique_ptr when
calling AcquireError.
Bug:dawn:320
Change-Id: I13ec953b0c37eaafbd6ce93c2f719b4743676acb
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/14960
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Rafael Cintron <rafael.cintron@microsoft.com>
More concretely this makes Result<T*, E*> able to be move-constructed
from Result<ChildClassOfT*, E*> for free.
BUG=dawn:19
Change-Id: Iea2b8997079ac3bfcf270d6b73a79cf5cac2c06f
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/11860
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
The existing implementation of Result with tagged pointers was not able
to handle constant pointers for the result. This is required in
follow-up CLs to return internal formats in a ResultOrError.
This CL extracts the tagged pointer logic out of Result<T*, E*> so it
can be shared with Result<const T*, E*>.
Tests are also added to cover Result<const T*, E*>.
BUG=dawn:128
Change-Id: Id19ae8e1153bcfcaf94d95ac314faf2b23af6f91
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/9100
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
It currently is a tagged pair instead of a tagged union because it was
much easier to write and the optimization can come later.
BUG=dawn:19
Change-Id: Idbfd86d559655b38871c2d1768bdd758e797dfbd
Reviewed-on: https://dawn-review.googlesource.com/c/2701
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Stephen White <senorblanco@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
