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Create a constellation_traits crate (#36088)

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This change creates a `constellation_traits` crate. Previously messages
to the `Constellation` were in the `compositing_traits` crate, which
came about organically. This change moves these to a new crate which
also contains data types that are used in both compositing/libservo and
script (ie types that cross the process boundary). The idea is similar
to `embedding_traits`, but this is meant for types not exposed to the
API.

This change allows deduplicating `UntrustedNodeAddress`, which
previously had two versions to avoid circular dependencies.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
This commit is contained in:
Martin Robinson 2025-03-22 16:49:08 +01:00 • committed by GitHub
parent 02375809b0
commit 7c574141c0
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52 changed files with 399 additions and 270 deletions
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14
components/shared/base/id.rs
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@ -16,7 +16,7 @@ use malloc_size_of::malloc_size_of_is_0;
use malloc_size_of_derive::MallocSizeOf;
use parking_lot::Mutex;
use serde::{Deserialize, Serialize};
use webrender_api::{ExternalScrollId, PipelineId as WebRenderPipelineId};
use webrender_api::{ExternalScrollId, PipelineId as WebRenderPipelineId, SpatialId};
/// Asserts the size of a type at compile time.
macro_rules! size_of_test {
@ -442,3 +442,15 @@ pub const TEST_BROWSING_CONTEXT_ID: BrowsingContextId = BrowsingContextId {
};
pub const TEST_WEBVIEW_ID: WebViewId = WebViewId(TEST_BROWSING_CONTEXT_ID);
/// An id for a ScrollTreeNode in the ScrollTree. This contains both the index
/// to the node in the tree's array of nodes as well as the corresponding SpatialId
/// for the SpatialNode in the WebRender display list.
#[derive(Clone, Copy, Debug, Default, Deserialize, PartialEq, Serialize)]
pub struct ScrollTreeNodeId {
/// The index of this scroll tree node in the tree's array of nodes.
pub index: usize,
/// The WebRender spatial id of this scroll tree node.
pub spatial_id: SpatialId,
}