Andreas Kling 269f9c6863 LibWeb: Add fast-paths for wrapping already-wrapped C++ objects ...

If a C++ object already has a JS wrapper, we don't need to go through
the expensive type checks to figure out which kind of wrapper to create.
Instead, just return the wrapper we already have!

This gives a noticeable increase in smoothness on Acid3, where ~10% of
CPU time was previously spent doing RTTI type checks in wrap(). With
these changes, it's down to ~1%.

2022-03-27 03:21:29 +02:00

2.7 KiB

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