Reviewable per commits:
As noted in
https://github.com/servo/servo/pull/42180#discussion_r2749861902
transmuting `&Reflector<AssociatedMemory>` to `&Reflector<()>` will
ignore AssociatedMemory information and thus it will not remove extra
associated memory. By returning `&Reflector<Self::ReflectorType>` from
`DomObject::reflector()` we will preserve this information and thus
correctly handle cases with associated memory. We also do not need
`overrideMemoryUsage` in bindings.conf anymore. 🎉
Instead of removing associated memory in drop code we should do it as
part of finalizers, otherwise we have problems in nested (inherited)
structs, where drop is run for both parent and child, but we only added
associated memory for child (on init_reflector) which already included
size of parent. The only exception here is promise, because it is RCed
and not finalized.
Testing: Tested locally that it fixes speedometer.
Fixes#42269
---------
Signed-off-by: sagudev <16504129+sagudev@users.noreply.github.com>
By reporting memory usage of rust objects back to SM it can trigger GC
sooner and release more memory (I hope that we could use this to avoid
OOB in webgpu in the future).
Currently we use simple `size_of::<DomStruct>() +
size_of::<Box<DomStruct>>()` but it's possible to override reported
memory with `update_memory_size(self, nbytes);` on reflector. This is
mostly useful for canvases and buffers which usually have large
associated data.
Testing: None, but I am wondering if we can connect this to
`about:memory`.
Fixes: #42168
---------
Signed-off-by: sagudev <16504129+sagudev@users.noreply.github.com>
Changed most #[allow]s to #[expect]s, mainly for
clippy::too_many_arguments
Removed unfulfilled expectations
This is my first opensource contribution, so please let me know if
anything should
be done differently.
Testing: Refactor
Part of: #40838
---------
Signed-off-by: Tim van der Lippe <tvanderlippe@gmail.com>
Signed-off-by: TimurBora <timurborisov5561@gmail.com>
Co-authored-by: Tim van der Lippe <TimvdLippe@users.noreply.github.com>
This doesn't appear to make a big difference in speedometer results, but
this removes some code from the hot path of creating DomRoot values.
Before: `Score: 30.381097406624708 ± 2.0393225244958018`
After: `Score: 30.344639420871395 ± 1.9359337921154696`
Testing: Existing WPT coverage
Signed-off-by: Josh Matthews <josh@joshmatthews.net>
This is useful to better isolate `unsafe` code. Once all unsafe calls
are wrapped we can enable the Rust warning. This also explicitly
disables the warning for generated code, which is a much more difficult
task. After this change there are 211 warnings left in
`script_bindings`.
Testing: This should not change behavior and is thus covered by existing
tests.
Signed-off-by: Martin Robinson <mrobinson@igalia.com>
`Dom::trace` currently allocates a new string when debug assertions are
enabled:
0f61361e27/components/script_bindings/root.rs (L232-L241)
This allocation is very heavy in profiles (~14% of runtime). While it
doesn't affect production builds, these few characters are not providing
enough value to justify the cost.
This changes the method to instead only use `std::any::type_name`,
without `format!`. With this change, all the string-format related
methods vanish from the profile.
Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
Profiling from #36609 showed this is an easy win. Ordering of our root
list does not matter, so swap_remove is a constant time operation
compared to a linear time one that caused memmove to appear in profiles
with lots of unrooting.
Testing: Existing WPT tests will cover this change.
Fixes: Part of #36609.
Signed-off-by: Josh Matthews <josh@joshmatthews.net>
* script: Move HasParent to script_bindings and update imports for InheritTypes.
Signed-off-by: Josh Matthews <josh@joshmatthews.net>
* script: Make principal creation generic over DOM interface.
Signed-off-by: Josh Matthews <josh@joshmatthews.net>
* script: Move a bunch of proxy-related code to script_bindings.
Signed-off-by: Josh Matthews <josh@joshmatthews.net>
* script: Make some proxy-related code generic over the DOM interface.
Signed-off-by: Josh Matthews <josh@joshmatthews.net>
* script: Move DomSlice to script_bindings.
Signed-off-by: Josh Matthews <josh@joshmatthews.net>
* script: Move some utility bindings code to script_bindings.
Signed-off-by: Josh Matthews <josh@joshmatthews.net>
* script: Make enumerating and resolving globals generic over the DOM interface.
Signed-off-by: Josh Matthews <josh@joshmatthews.net>
* script: Make realm helpers generic over the DOM interface.
Signed-off-by: Josh Matthews <josh@joshmatthews.net>
* script: Move implementations on concrete DOM types to concrete bindings.
Signed-off-by: Josh Matthews <josh@joshmatthews.net>
* script: Make additional codegen helpers generic over the DOM interface.
Signed-off-by: Josh Matthews <josh@joshmatthews.net>
* script: Make iterator creation generic over the DOM interface.
Signed-off-by: Josh Matthews <josh@joshmatthews.net>
* script: Make reporting an exception a generic operation.
Signed-off-by: Josh Matthews <josh@joshmatthews.net>
* script: Move AsCCharPtrPtr to script_bindings.
Signed-off-by: Josh Matthews <josh@joshmatthews.net>
* Formatting.
Signed-off-by: Josh Matthews <josh@joshmatthews.net>
* Address clippy warnings.
Signed-off-by: Josh Matthews <josh@joshmatthews.net>
---------
Signed-off-by: Josh Matthews <josh@joshmatthews.net>
* Migrate to 2024 edition
Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
* Allow unsafe_op_in_unsafe_fn lint
This lint warns by default in the 2024
edition, but is *way* too noisy for servo.
We might enable it in the future, but not now.
Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
* Compile using the 2024 edition
Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
---------
Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
#30151 added support for setlike and maplike declarations in WebIDL, but
the tests only validated if generator code worked with 'DOMString' as
the key type. The support for interface type as members was broken as
`DomRoot<T>` didn't satify the bounds `Eq` and `Hash` needed by the
`Key` and `Value` types in `Setlike` and `Maplike` traits respectively.
In addition, the splitting of bindings into a separate 'script_bindings'
crate had also broken support for this in CodegenRust.py, as the types
used within the definition of `DomTraits` were not referenced using
`Self::`.
This patch fixes the WebIDL code generator by doing a simple string
replacement on the return value of `getRetvalDeclarationForType` so that
the proper `Self::` is used. I'm not not sure if there is a better
approach to this as it seems most logic in CodegenRust.py uses the `D::`
prefix that is expected to be available only when compiling `script`
crate and not `script_bindings`.
This patch also adds the missing trait implementations for `DomRoot` and
ensures that the generated code works for both members of primitive and
interface types by splitting the existing `TestBinding{Map,Set}Like`
interfaces into `TestBinding{Map,Set}LikeWith{Primitive,Interface}`
tests.
Fixes#35542.
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
