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Deserialization less in associated_item_def_ids

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Matthew Jasper 2021-11-18 20:59:12 +00:00 committed by Noah Lev
parent e012a191d7
commit 0b1ab91d66
2 changed files with 11 additions and 6 deletions
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10
compiler/rustc_metadata/src/rmeta/decoder.rs
View File

@ -1258,6 +1258,16 @@ impl<'a, 'tcx> CrateMetadataRef<'a> {
}
}
fn get_associated_item_def_ids(&self, tcx: TyCtxt<'tcx>, id: DefIndex) -> &'tcx [DefId] {
if let Some(children) = self.root.tables.children.get(self, id) {
tcx.arena.alloc_from_iter(
children.decode((self, tcx.sess)).map(|child_index| self.local_def_id(child_index)),
)
} else {
&[]
}
}
fn get_associated_item(&self, id: DefIndex, sess: &Session) -> ty::AssocItem {
let def_key = self.def_key(id);
let parent = self.local_def_id(def_key.parent.unwrap());

7
compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs
View File

@ -103,12 +103,7 @@ provide! { <'tcx> tcx, def_id, other, cdata,
tcx.calculate_dtor(def_id, |_,_| Ok(()))
}
variances_of => { tcx.arena.alloc_from_iter(cdata.get_item_variances(def_id.index)) }
associated_item_def_ids => {
let mut result = SmallVec::<[_; 8]>::new();
cdata.each_child_of_item(def_id.index,
|child| result.push(child.res.def_id()), tcx.sess);
tcx.arena.alloc_slice(&result)
}
associated_item_def_ids => { cdata.get_associated_item_def_ids(tcx, def_id.index) }
associated_item => { cdata.get_associated_item(def_id.index, tcx.sess) }
impl_trait_ref => { cdata.get_impl_trait(def_id.index, tcx) }
impl_polarity => { cdata.get_impl_polarity(def_id.index) }