Remove Q parameter from QueryCache::lookup.

Author: cjgillot

src/librustc/ty/query/caches.rs

@@ -1,6 +1,5 @@
 use crate::dep_graph::DepNodeIndex;
-use crate::ty::query::config::QueryAccessors;
-use crate::ty::query::plumbing::{QueryLookup, QueryState, QueryStateShard};
+use crate::ty::query::plumbing::{QueryLookupImpl, QueryStateImpl, QueryStateShardImpl};
 use crate::ty::TyCtxt;
 
 use rustc_data_structures::fx::FxHashMap;
@@ -19,20 +18,21 @@ pub(crate) trait QueryCache<K, V>: Default {
     /// It returns the shard index and a lock guard to the shard,
     /// which will be used if the query is not in the cache and we need
     /// to compute it.
-    fn lookup<'tcx, R, GetCache, OnHit, OnMiss, Q>(
+    fn lookup<'tcx, R, GetCache, OnHit, OnMiss>(
         &self,
-        state: &'tcx QueryState<'tcx, Q>,
+        state: &'tcx QueryStateImpl<'tcx, K, V, Self>,
         get_cache: GetCache,
         key: K,
         // `on_hit` can be called while holding a lock to the query state shard.
         on_hit: OnHit,
         on_miss: OnMiss,
     ) -> R
     where
-        Q: QueryAccessors<'tcx>,
-        GetCache: for<'a> Fn(&'a mut QueryStateShard<'tcx, Q>) -> &'a mut Self::Sharded,
+        GetCache: for<'a> Fn(
+            &'a mut QueryStateShardImpl<'tcx, K, Self::Sharded>,
+        ) -> &'a mut Self::Sharded,
         OnHit: FnOnce(&V, DepNodeIndex) -> R,
-        OnMiss: FnOnce(K, QueryLookup<'tcx, Q>) -> R;
+        OnMiss: FnOnce(K, QueryLookupImpl<'tcx, QueryStateShardImpl<'tcx, K, Self::Sharded>>) -> R;
 
     fn complete(
         &self,
@@ -64,19 +64,20 @@ impl<K: Eq + Hash, V: Clone> QueryCache<K, V> for DefaultCache {
     type Sharded = FxHashMap<K, (V, DepNodeIndex)>;
 
     #[inline(always)]
-    fn lookup<'tcx, R, GetCache, OnHit, OnMiss, Q>(
+    fn lookup<'tcx, R, GetCache, OnHit, OnMiss>(
         &self,
-        state: &'tcx QueryState<'tcx, Q>,
+        state: &'tcx QueryStateImpl<'tcx, K, V, Self>,
         get_cache: GetCache,
         key: K,
         on_hit: OnHit,
         on_miss: OnMiss,
     ) -> R
     where
-        Q: QueryAccessors<'tcx>,
-        GetCache: for<'a> Fn(&'a mut QueryStateShard<'tcx, Q>) -> &'a mut Self::Sharded,
+        GetCache: for<'a> Fn(
+            &'a mut QueryStateShardImpl<'tcx, K, Self::Sharded>,
+        ) -> &'a mut Self::Sharded,
         OnHit: FnOnce(&V, DepNodeIndex) -> R,
-        OnMiss: FnOnce(K, QueryLookup<'tcx, Q>) -> R,
+        OnMiss: FnOnce(K, QueryLookupImpl<'tcx, QueryStateShardImpl<'tcx, K, Self::Sharded>>) -> R,
     {
         let mut lookup = state.get_lookup(&key);
         let lock = &mut *lookup.lock;

src/librustc/ty/query/plumbing.rs

@@ -449,7 +449,7 @@ impl<'tcx> TyCtxt<'tcx> {
     {
         let state = Q::query_state(self);
 
-        state.cache.lookup::<_, _, _, _, Q>(
+        state.cache.lookup(
             state,
             QueryStateShard::<Q>::get_cache,
             key,