Allow to create definitions inside the query system.

2021-07-12 22:19:25 +02:00
parent 3dcb616888
commit 43bb31b954
23 changed files with 260 additions and 150 deletions
--- a/compiler/rustc_query_system/src/dep_graph/mod.rs
+++ b/compiler/rustc_query_system/src/dep_graph/mod.rs
@@ -23,7 +23,7 @@ pub trait DepContext: Copy {
    type DepKind: self::DepKind;

    /// Create a hashing context for hashing new results.
-    fn create_stable_hashing_context(&self) -> StableHashingContext<'_>;
+    fn with_stable_hashing_context<R>(&self, f: impl FnOnce(StableHashingContext<'_>) -> R) -> R;

    /// Access the DepGraph.
    fn dep_graph(&self) -> &DepGraph<Self::DepKind>;