diff options
| author | Jack Huey <31162821+jackh726@users.noreply.github.com> | 2022-05-10 22:40:43 -0400 |
|---|---|---|
| committer | Jack Huey <31162821+jackh726@users.noreply.github.com> | 2022-05-14 10:16:59 -0400 |
| commit | 06a1e8854c95d5be5db0bebe4630c691b604e792 (patch) | |
| tree | 5a9166d6aefd3ac4c6eb53e17e9e3e42590dc524 | |
| parent | 91afd0263269c44d57fe127f4c20748b5747113b (diff) | |
| download | rust-06a1e8854c95d5be5db0bebe4630c691b604e792.tar.gz rust-06a1e8854c95d5be5db0bebe4630c691b604e792.zip | |
Add rustc_on_unimplemented to Subst
| -rw-r--r-- | compiler/rustc_middle/src/ty/subst.rs | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/rustc_middle/src/ty/subst.rs b/compiler/rustc_middle/src/ty/subst.rs index 9053d744415..48c71113d50 100644 --- a/compiler/rustc_middle/src/ty/subst.rs +++ b/compiler/rustc_middle/src/ty/subst.rs @@ -499,6 +499,7 @@ impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::List<Ty<'tcx>> { } // Just call `foo.subst(tcx, substs)` to perform a substitution across `foo`. +#[rustc_on_unimplemented(message = "Calling `subst` must now be done through an `EarlyBinder`")] pub trait Subst<'tcx>: Sized { type Inner; |