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librustc: De-@mut the impl_trait_cache

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This commit is contained in:
Patrick Walton 2013-12-18 15:57:57 -08:00
parent 02f13adaa3
commit efdbd60a87
1 changed files with 12 additions and 6 deletions
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18
src/librustc/middle/ty.rs
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@ -295,7 +295,7 @@ struct ctxt_ {
// A cache for the trait_methods() routine
trait_methods_cache: RefCell<HashMap<DefId, @~[@Method]>>,
impl_trait_cache: @mut HashMap<ast::DefId, Option<@ty::TraitRef>>,
impl_trait_cache: RefCell<HashMap<ast::DefId, Option<@ty::TraitRef>>>,
trait_refs: @mut HashMap<NodeId, @TraitRef>,
trait_defs: @mut HashMap<DefId, @TraitDef>,
@ -1001,7 +1001,7 @@ pub fn mk_ctxt(s: session::Session,
methods: RefCell::new(HashMap::new()),
trait_method_def_ids: RefCell::new(HashMap::new()),
trait_methods_cache: RefCell::new(HashMap::new()),
impl_trait_cache: @mut HashMap::new(),
impl_trait_cache: RefCell::new(HashMap::new()),
ty_param_defs: @mut HashMap::new(),
adjustments: @mut HashMap::new(),
normalized_cache: new_ty_hash(),
@ -3621,10 +3621,14 @@ pub fn trait_method_def_ids(cx: ctxt, id: ast::DefId) -> @~[DefId] {
}
pub fn impl_trait_ref(cx: ctxt, id: ast::DefId) -> Option<@TraitRef> {
match cx.impl_trait_cache.find(&id) {
Some(&ret) => { return ret; }
None => {}
{
let mut impl_trait_cache = cx.impl_trait_cache.borrow_mut();
match impl_trait_cache.get().find(&id) {
Some(&ret) => { return ret; }
None => {}
}
}
let ret = if id.crate == ast::LOCAL_CRATE {
debug!("(impl_trait_ref) searching for trait impl {:?}", id);
match cx.items.find(&id.node) {
@ -3642,7 +3646,9 @@ pub fn impl_trait_ref(cx: ctxt, id: ast::DefId) -> Option<@TraitRef> {
} else {
csearch::get_impl_trait(cx, id)
};
cx.impl_trait_cache.insert(id, ret);
let mut impl_trait_cache = cx.impl_trait_cache.borrow_mut();
impl_trait_cache.get().insert(id, ret);
return ret;
}