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script: Measure heap usage of various ignored fields (#38791)

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These changes allow using MallocSizeOf/`#[conditional_malloc_size_of]`
on WebIDL callback values, and then fix a grab bag of places in the
script crate that previously ignored those values. There are also some
commits removing ignored fields that involved Arc/Rc that are not WebIDL
callbacks, since they are now easier to support with the
`#[conditional_malloc_size_of]` attribute.

Testing: Manual testing on about:memory for servo.org.

---------

Signed-off-by: Josh Matthews <josh@joshmatthews.net>
This commit is contained in:
Josh Matthews 2025-08-20 04:43:58 -04:00 • committed by GitHub
parent 604b6ea26d
commit 636e7211e0
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GPG key ID: B5690EEEBB952194
16 changed files with 44 additions and 38 deletions
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3
components/shared/constellation/from_script_message.rs
View file

@ -23,6 +23,7 @@ use euclid::default::Size2D as UntypedSize2D;
use http::{HeaderMap, Method};
use ipc_channel::Error as IpcError;
use ipc_channel::ipc::{IpcReceiver, IpcSender};
use malloc_size_of_derive::MallocSizeOf;
use net_traits::policy_container::PolicyContainer;
use net_traits::request::{Destination, InsecureRequestsPolicy, Referrer, RequestBody};
use net_traits::storage_thread::StorageType;
@ -42,7 +43,7 @@ use crate::{
};
/// A Script to Constellation channel.
#[derive(Clone, Debug, Deserialize, Serialize)]
#[derive(Clone, Debug, Deserialize, MallocSizeOf, Serialize)]
pub struct ScriptToConstellationChan {
/// Sender for communicating with constellation thread.
pub sender: IpcSender<(PipelineId, ScriptToConstellationMessage)>,

2
components/shared/layout/lib.rs
View file

@ -175,7 +175,7 @@ pub struct PendingRasterizationImage {
pub size: DeviceIntSize,
}
#[derive(Clone, Copy, Debug)]
#[derive(Clone, Copy, Debug, MallocSizeOf)]
pub struct MediaFrame {
pub image_key: webrender_api::ImageKey,
pub width: i32,