1621866 - Use C++17 fold expression in profiler code

Status: RESOLVED FIXED

(Core :: Gecko Profiler, task, P2)

Description

[Gerald Squelart (he/him) (not at Mozilla since 2022-09-15)]

The profiler (de)serialization code uses some pre-C++17 tricks to apply a function to variadic arguments. C++17 makes this much easier (and probably more efficient) now with fold expressions.
https://en.cppreference.com/w/cpp/language/fold

Comment 1

[Gerald Squelart (he/him) (not at Mozilla since 2022-09-15)]

Attachment: Bug 1621866 - Use C++17 fold expressions in ProfileBufferEntrySerialization.h - r?canaltinova!,gregtatum

Fold expressions are more expressive and probably produce better code than the
older template-recursion and initializer_list patterns.

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/3c5ac4d8328f
Use C++17 fold expressions in ProfileBufferEntrySerialization.h - r=canaltinova

Comment 3

[Daniel Varga [:dvarga]]

https://hg.mozilla.org/mozilla-central/rev/3c5ac4d8328f