Just for some additional extra context...
The C++ mozilla::Result implementation is pretty heavily optimized for
common use cases to try to pack its representation into a single machine
word when possible. For instance, if you return a `Result`,
you're really just returning an `nsresult`. If
Just chiming in here with some brief extra context on the performance of
Result (which I really need to do a writeup about so that I can just link
it):
TL;DR performance of Result is usually fine, but can randomly be a huge
problem. However there's also improvements for this on the (distant)
On Mon, Aug 12, 2019 at 10:14:19PM -0700, Bryce Seager van Dyk wrote:
But either way, that's going to result in a copy when the
Result is constructed (unless the compiler is really clever).
Is it the data being moved into the Result which is incurring
the copy here, or the actual Result
Okay, thanks for the confirmation! Will do some needed edits.
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Hi,
In bug 1573438, I intend to remove support for the mode attribute on the
element. This attribute is from MathML 1 and has been deprecated
from MathML 2 (released 16 years ago) in favor of the display attribute
[1] and we have been sending deprecation warnings since Mozilla 20
(released 6
Cranelift should be genuinely optional until further notice; to my
knownledge, no near-term product work in Firefox or SpiderMonkey depends on
Cranelift. Cranelift is present in Nightly but (so far as I can tell) not
in Release. It can be disabled in the JS shell by configuring with
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