Add a query for dereferencing constants of reference type

2020-07-01 11:41:38 +02:00
parent b54f122a1c
commit 34c62e0abc
3 changed files with 53 additions and 1 deletions
--- a/compiler/rustc_mir/src/lib.rs
+++ b/compiler/rustc_mir/src/lib.rs
@@ -60,4 +60,8 @@ pub fn provide(providers: &mut Providers) {
        let (param_env, value) = param_env_and_value.into_parts();
        const_eval::destructure_const(tcx, param_env, value)
    };
+    providers.deref_const = |tcx, param_env_and_value| {
+        let (param_env, value) = param_env_and_value.into_parts();
+        const_eval::deref_const(tcx, param_env, value)
+    };
 }