bjoernager/rust
bjoernager/rust
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Store only the current depth

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Previously we stored the entire current path which is a bit expensive
and only ever accessed its length. This stores the length directly.
This commit is contained in:
Mark Rousskov 2019-08-12 12:53:45 -04:00
parent 0e079c2c68
commit 3307929a84
2 changed files with 11 additions and 11 deletions
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10
src/librustdoc/html/render.rs
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@ -28,7 +28,7 @@
pub use self::ExternalLocation::*;
use std::borrow::Cow;
use std::cell::RefCell;
use std::cell::{Cell, RefCell};
use std::cmp::Ordering;
use std::collections::{BTreeMap, VecDeque};
use std::default::Default;
@ -479,7 +479,7 @@ impl ToJson for IndexItemFunctionType {
}
thread_local!(static CACHE_KEY: RefCell<Arc<Cache>> = Default::default());
thread_local!(pub static CURRENT_LOCATION_KEY: RefCell<Vec<String>> = RefCell::new(Vec::new()));
thread_local!(pub static CURRENT_DEPTH: Cell<usize> = Cell::new(0));
pub fn initial_ids() -> Vec<String> {
[
@ -695,7 +695,7 @@ pub fn run(mut krate: clean::Crate,
// for future parallelization opportunities
let cache = Arc::new(cache);
CACHE_KEY.with(|v| *v.borrow_mut() = cache.clone());
CURRENT_LOCATION_KEY.with(|s| s.borrow_mut().clear());
CURRENT_DEPTH.with(|s| s.set(0));
// Write shared runs within a flock; disable thread dispatching of IO temporarily.
Arc::get_mut(&mut cx.shared).unwrap().fs.set_sync_only(true);
@ -2003,8 +2003,8 @@ impl Context {
-> io::Result<()> {
// A little unfortunate that this is done like this, but it sure
// does make formatting *a lot* nicer.
CURRENT_LOCATION_KEY.with(|slot| {
*slot.borrow_mut() = self.current.clone();
CURRENT_DEPTH.with(|slot| {
slot.set(self.current.len());
});
let mut title = if it.is_primitive() || it.is_keyword() {