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Move generated bindings to script_bindings (#36323)

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This is the final step of #1799, where the majority of the generated
code for the JS bindings is now compiled as part of the script_bindings
build step. The remaining pieces in script must live there because they
refer to concrete DOM types; all code in script_bindings is generic over
the
[DomTypes](https://doc.servo.org/script/dom/bindings/codegen/DomTypes/trait.DomTypes.html)
trait.

My testing with incremental builds shows me a 12 second reduction in
build times on my 2024 M4 Macbook Pro when modifying code in the script
crate after these changes. Before this PR those changes took 20 seconds
to rebuild Servo, and now they take 8 seconds.

Testing: Existing WPT tests ensure no regressions.
Fixes: #1799

---------

Signed-off-by: Josh Matthews <josh@joshmatthews.net>
This commit is contained in:
Josh Matthews 2025-04-04 02:45:08 -04:00 • committed by GitHub
parent 277c0b82dd
commit b4079b3ff3
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44 changed files with 1932 additions and 1829 deletions
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25
components/script/dom/globalscope.rs
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@ -54,6 +54,7 @@ use net_traits::{
ResourceThreads, fetch_async,
};
use profile_traits::{ipc as profile_ipc, mem as profile_mem, time as profile_time};
use script_bindings::interfaces::GlobalScopeHelpers;
use script_traits::serializable::{BlobData, BlobImpl, FileBlob};
use script_traits::transferable::MessagePortImpl;
use script_traits::{
@ -3318,30 +3319,6 @@ unsafe fn global_scope_from_global_static(global: *mut JSObject) -> DomRoot<Glob
root_from_object_static(global).unwrap()
}
/// Operations that must be invoked from the generated bindings.
#[allow(unsafe_code)]
pub(crate) trait GlobalScopeHelpers<D: crate::DomTypes> {
unsafe fn from_context(cx: *mut JSContext, realm: InRealm) -> DomRoot<D::GlobalScope>;
fn get_cx() -> SafeJSContext;
unsafe fn from_object(obj: *mut JSObject) -> DomRoot<D::GlobalScope>;
fn from_reflector(reflector: &impl DomObject, realm: InRealm) -> DomRoot<D::GlobalScope>;
unsafe fn from_object_maybe_wrapped(
obj: *mut JSObject,
cx: *mut JSContext,
) -> DomRoot<D::GlobalScope>;
fn origin(&self) -> &MutableOrigin;
fn incumbent() -> Option<DomRoot<D::GlobalScope>>;
fn perform_a_microtask_checkpoint(&self, can_gc: CanGc);
fn get_url(&self) -> ServoUrl;
fn is_secure_context(&self) -> bool;
}
#[allow(unsafe_code)]
impl GlobalScopeHelpers<crate::DomTypeHolder> for GlobalScope {
unsafe fn from_context(cx: *mut JSContext, realm: InRealm) -> DomRoot<Self> {