bless clippy

clippy_lints/src/manual_float_methods.rs

@@ -3,7 +3,7 @@
 use clippy_utils::source::snippet_opt;
 use clippy_utils::{is_from_proc_macro, path_to_local};
 use rustc_errors::Applicability;
-use rustc_hir::{BinOpKind, Expr, ExprKind};
+use rustc_hir::{BinOpKind, Constness, Expr, ExprKind};
 use rustc_lint::{LateContext, LateLintPass, Lint, LintContext};
 use rustc_middle::lint::in_external_macro;
 use rustc_session::{declare_lint_pass, declare_tool_lint};
@@ -83,8 +83,10 @@ pub fn msg(self) -> &'static str {
 impl<'tcx> LateLintPass<'tcx> for ManualFloatMethods {
     fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'tcx>) {
         if !in_external_macro(cx.sess(), expr.span)
-            && cx.tcx.features().active(sym!(const_float_classify))
-            && let ExprKind::Binary(kind, lhs, rhs) = expr.kind
+            && (
+                matches!(cx.tcx.constness(cx.tcx.hir().enclosing_body_owner(expr.hir_id)), Constness::NotConst) 
+                    || cx.tcx.features().active(sym!(const_float_classify))
+            ) && let ExprKind::Binary(kind, lhs, rhs) = expr.kind
             && let ExprKind::Binary(lhs_kind, lhs_lhs, lhs_rhs) = lhs.kind
             && let ExprKind::Binary(rhs_kind, rhs_lhs, rhs_rhs) = rhs.kind
             // Checking all possible scenarios using a function would be a hopeless task, as we have

clippy_utils/src/qualify_min_const_fn.rs

@@ -391,6 +391,9 @@ fn is_const_fn(tcx: TyCtxt<'_>, def_id: DefId, msrv: &Msrv) -> bool {
 
 #[expect(clippy::similar_names)] // bit too pedantic
 fn is_ty_const_destruct<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>, body: &Body<'tcx>) -> bool {
+    // FIXME(effects, fee1-dead) revert to const destruct once it works again
+    #[expect(unused)]
+    fn is_ty_const_destruct_unused<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>, body: &Body<'tcx>) -> bool {
         // Avoid selecting for simple cases, such as builtin types.
         if ty::util::is_trivially_const_drop(ty) {
             return true;
@@ -420,3 +423,6 @@ fn is_ty_const_destruct<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>, body: &Body<'tcx>
         ocx.register_obligations(impl_src.nested_obligations());
         ocx.select_all_or_error().is_empty()
     }
+
+    !ty.needs_drop(tcx, ConstCx::new(tcx, body).param_env)    
+}

tests/ui/missing_const_for_fn/could_be_const.rs

@@ -99,4 +99,5 @@ fn drop(&mut self) {
 }
 
 // Lint this, since it can be dropped in const contexts
+// FIXME(effects)
 fn d(this: D) {}

tests/ui/missing_const_for_fn/could_be_const.stderr

@@ -89,11 +89,5 @@ LL | |     46
 LL | | }
    | |_^
 
-error: this could be a `const fn`
-  --> $DIR/could_be_const.rs:102:1
-   |
-LL | fn d(this: D) {}
-   | ^^^^^^^^^^^^^^^^
-
-error: aborting due to 12 previous errors
+error: aborting due to 11 previous errors