BackendRepr::is_signed: comment why this may panics

2025-03-29 12:21:51 +01:00
parent 928468c47c
commit 439048e074
1 changed files with 2 additions and 1 deletions
--- a/compiler/rustc_abi/src/lib.rs
+++ b/compiler/rustc_abi/src/lib.rs
@@ -1462,7 +1462,8 @@ impl BackendRepr {
        !self.is_unsized()
    }

-    /// Returns `true` if this is a single signed integer scalar
+    /// Returns `true` if this is a single signed integer scalar.
+    /// Sanity check: panics if this is not a scalar type (see PR #70189).
    #[inline]
    pub fn is_signed(&self) -> bool {
        match self {