Mirrors/servo
1
0
Fork 0
mirror of https://github.com/servo/servo.git synced 2025-08-07 06:25:32 +01:00
Code Issues Projects Releases Packages Wiki Activity

style: Allow to use ThinVec/nsTArray in the style crate

Browse source 
This allows to clean-up the previous patches by using a single ThinVec
(which stores length / capacity along with the allocation).

Differential Revision: https://phabricator.services.mozilla.com/D175029
This commit is contained in:
Emilio Cobos Álvarez 2023-04-12 21:58:29 +00:00 • committed by Martin Robinson
parent a2df8f7ea5
commit 0709e13446
9 changed files with 110 additions and 48 deletions
Download patch file Download diff file Expand all files Collapse all files

1
components/malloc_size_of/Cargo.toml
View file

@ -45,6 +45,7 @@ servo_arc = { path = "../servo_arc" }
smallbitvec = { workspace = true }
smallvec = { workspace = true }
string_cache = { workspace = true, optional = true }
thin-vec = { version = "0.2.1", features = ["gecko-ffi"] }
time = { workspace = true, optional = true }
tokio = { workspace = true }
url = { workspace = true, optional = true }

22
components/malloc_size_of/lib.rs
View file

@ -396,6 +396,28 @@ where
}
}
impl<T> MallocShallowSizeOf for thin_vec::ThinVec<T> {
fn shallow_size_of(&self, ops: &mut MallocSizeOfOps) -> usize {
if self.capacity() == 0 {
// If it's the singleton we might not be a heap pointer.
return 0;
}
assert_eq!(std::mem::size_of::<Self>(), std::mem::size_of::<*const ()>());
unsafe { ops.malloc_size_of(*(self as *const Self as *const *const ())) }
}
}
impl<T: MallocSizeOf> MallocSizeOf for thin_vec::ThinVec<T> {
fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize {
let mut n = self.shallow_size_of(ops);
for elem in self.iter() {
n += elem.size_of(ops);
}
n
}
}
macro_rules! malloc_size_of_hash_set {
($ty:ty) => {
impl<T, S> MallocShallowSizeOf for $ty