When building an object from an object expression, we don't want to
go through the full property setting machinery. This patch adds a new
PropertyKind::DirectKeyValue for PutById which guarantees that the
property becomes an own property.
This fixes an issue where setting the "__proto__" property in object
expressions wasn't working right.
12 new passes on test262. :^)
A lot of code gen happening here. These generators are kind of
awkward to work with, and the fact that the CLDR data download
extracts over 8,000 files makes it hard to fit into the explicit
patterns GN expects of us.
This uses one of Sun OS's algorithms, for a comparison to other
algorithms please refer to
https://gist.github.com/Hendiadyoin1/f58346d66637deb9156ef360aa158bf9
This is used on aarch64 builds and for x86 floats and doubles
for performance gains check
https://quick-bench.com/q/_2jTykshP6cUqtgdepFaoQ53YC8
which shows approximately 2x gains
Co-Authored-By: Ben Wiederhake <BenWiederhake.GitHub@gmx.de>
Co-Authored-By: kleines Filmröllchen <filmroellchen@serenityos.org>
Co-Authored-By: Dan Klishch <danilklishch@gmail.com>
The instructions GetById and GetByIdWithThis now remember the last-seen
Shape, and if we see the same object again, we reuse the property offset
from last time without doing a new lookup.
This allows us to use Object::get_direct(), bypassing the entire lookup
machinery and saving lots of time.
~23% speed-up on Kraken/ai-astar.js :^)
This function now takes an optional out parameter for callers who would
like to what kind of property we ended up getting.
This will be used to implement inline caching for property lookups.
Also, to prepare for adding more forms of caching, the out parameter
is a struct CacheablePropertyMetadata rather than just an offset. :^)
In order to ease the removal of this function, let's provide a no-op
default implementation so decoders can stop implementing it one by one.
First step of #19893
The documentation for building Ladybird gives a list of packages to
install under openSUSE, but is missing the Qt6 Multimedia development
package, qt6-multimedia-devel.
Include it.
We depend on GNU-specific du switch `--apparent-size`. Busybox has this
implemented, but as `-b` instead.
Another part of the build system uses `cp --preserve=timestamps`. This
can be replaced by `rsync -t`, and rsync is already used through the
file.
Thanks to those changes, Serenity can be built on a Busybox system,
without GNU coreutils.
Previously, the usage of local variables was limited for all function
declarations. This change relaxes the restriction and only prohibits
locals for hoistable annexB declarations.
Since it is not possible for delete operator to return true when it is
applied to local variable, DeleteVariable can safely always return
false for locals.
This also fixes operators/delete-local-variable.js in test-js.
The previous iteration of this API was somewhat odd and rough in random
places, which degraded usability and made less than perfect sense.
This commit reworks the API to be a little closer to more
conventional promise APIs (a la javascript promises).
Also adds a test to ensure the class even works.
Initially, the usage of local variables for parameters had to be
disabled when default values were used because there was a bug that
didn't allow to correctly find the scope to which identifiers used
within the default parameter expression belonged, and hence correctly
identify if a variable can be local. However, this bug was fixed in
2f85faef0f, so now this restriction
is no longer needed.
