diff options
| -rw-r--r-- | clippy_utils/src/ty.rs | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/clippy_utils/src/ty.rs b/clippy_utils/src/ty.rs index a07d6587bf9..59ebe685c11 100644 --- a/clippy_utils/src/ty.rs +++ b/clippy_utils/src/ty.rs @@ -219,7 +219,7 @@ pub fn implements_trait<'tcx>( /// Same as `implements_trait` but allows using a `ParamEnv` different from the lint context. /// -/// The `callee_id` argument is used to determine the "effect arg", if one is needed. +/// The `callee_id` argument is used to determine whether this is a function call in a `const fn` environment, used for checking const traits. pub fn implements_trait_with_env<'tcx>( tcx: TyCtxt<'tcx>, param_env: ParamEnv<'tcx>, @@ -243,7 +243,9 @@ pub fn implements_trait_with_env_from_iter<'tcx>( // Clippy shouldn't have infer types assert!(!ty.has_infer()); - // If a `callee_id` is passed, then "assert" it is a body owner. + // If a `callee_id` is passed, then we assert that it is a body owner + // through calling `body_owner_kind`, which would panic if the callee + // does not have a body. if let Some(callee_id) = callee_id { let _ = tcx.hir().body_owner_kind(callee_id); } |