bjoernager/rust
bjoernager/rust
1
Fork 0
Code Activity

Compute full HIR hash during lowering.

Browse source
This commit is contained in:
Camille GILLOT 2021-09-19 22:07:12 +02:00
parent 41e80b85cf
commit 0431fdb113
6 changed files with 69 additions and 57 deletions
Download patch file Download diff file Expand all files Collapse all files

23
compiler/rustc_ast_lowering/src/lib.rs
View file

@ -399,6 +399,8 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
hir::OwnerNode::Crate(lctx.arena.alloc(module))
});
let hir_hash = self.compute_hir_hash();
let mut def_id_to_hir_id = IndexVec::default();
for (node_id, hir_id) in self.node_id_to_hir_id.into_iter_enumerated() {
@ -412,10 +414,29 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
self.resolver.definitions().init_def_id_to_hir_id_mapping(def_id_to_hir_id);
let krate = hir::Crate { owners: self.owners };
let krate = hir::Crate { owners: self.owners, hir_hash };
self.arena.alloc(krate)
}
fn compute_hir_hash(&mut self) -> Fingerprint {
let definitions = self.resolver.definitions();
let mut hir_body_nodes: Vec<_> = self
.owners
.iter_enumerated()
.filter_map(|(def_id, info)| {
let info = info.as_ref()?;
let def_path_hash = definitions.def_path_hash(def_id);
Some((def_path_hash, info))
})
.collect();
hir_body_nodes.sort_unstable_by_key(|bn| bn.0);
let mut stable_hasher = StableHasher::new();
let mut hcx = self.resolver.create_stable_hashing_context();
hir_body_nodes.hash_stable(&mut hcx, &mut stable_hasher);
stable_hasher.finish()
}
fn with_hir_id_owner(
&mut self,
owner: NodeId,