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authorest31 <MTest31@outlook.com>2023-08-05 04:54:23 +0200
committerest31 <MTest31@outlook.com>2023-08-05 05:16:44 +0200
commit8cfa4fe6b2268385480dc4a88ce3e6fdb06a3596 (patch)
tree802035e9fd54a8db5096a87927ac62fdb05043a3 /compiler/rustc_lint/src/ptr_nulls.rs
parente173a8e6634d787a1529ff6ec5dc63273425ca34 (diff)
downloadrust-8cfa4fe6b2268385480dc4a88ce3e6fdb06a3596.tar.gz
rust-8cfa4fe6b2268385480dc4a88ce3e6fdb06a3596.zip
Add #[rustc_never_returns_null_ptr]
And look for it in the useless_ptr_null_checks lint
Diffstat (limited to 'compiler/rustc_lint/src/ptr_nulls.rs')
-rw-r--r--compiler/rustc_lint/src/ptr_nulls.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_lint/src/ptr_nulls.rs b/compiler/rustc_lint/src/ptr_nulls.rs
index 02aff91032f..52d8099091a 100644
--- a/compiler/rustc_lint/src/ptr_nulls.rs
+++ b/compiler/rustc_lint/src/ptr_nulls.rs
@@ -49,7 +49,7 @@ fn ptr_cast_chain<'a>(cx: &'a LateContext<'_>, mut e: &'a Expr<'a>) -> Option<&'
         } else if let ExprKind::Call(path, [arg]) = e.kind
             && let ExprKind::Path(ref qpath) = path.kind
             && let Some(def_id) = cx.qpath_res(qpath, path.hir_id).opt_def_id()
-            && matches!(cx.tcx.get_diagnostic_name(def_id), Some(sym::ptr_from_ref | sym::ptr_from_mut)) {
+            && cx.tcx.has_attr(def_id, sym::rustc_never_returns_null_ptr) {
             had_at_least_one_cast = true;
             arg
         } else if had_at_least_one_cast {