Fix lint registration

[rust.git] / clippy_lints / src / indexing_slicing.rs

diff --git a/clippy_lints/src/indexing_slicing.rs b/clippy_lints/src/indexing_slicing.rs
index f52f090d3872e11ab873ada16b9a0621620d299e..4ba7477add82a420dc3b160da1782e880adf85a0 100644 (file)
--- a/clippy_lints/src/indexing_slicing.rs
+++ b/clippy_lints/src/indexing_slicing.rs
@@ -33,6 +33,7 @@
     /// x[0];
     /// x[3];
     /// ```
+    #[clippy::version = "pre 1.29.0"]
     pub OUT_OF_BOUNDS_INDEXING,
     correctness,
     "out of bounds constant indexing"
@@ -85,6 +86,7 @@
     /// y.get(10..);
     /// y.get(..100);
     /// ```
+    #[clippy::version = "pre 1.29.0"]
     pub INDEXING_SLICING,
     restriction,
     "indexing/slicing usage"
@@ -94,6 +96,10 @@
 
 impl<'tcx> LateLintPass<'tcx> for IndexingSlicing {
     fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) {
+        if cx.tcx.hir().is_inside_const_context(expr.hir_id) {
+            return;
+        }
+
         if let ExprKind::Index(array, index) = &expr.kind {
             let ty = cx.typeck_results().expr_ty(array).peel_refs();
             if let Some(range) = higher::Range::hir(index) {
@@ -149,6 +155,10 @@ fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) {
             } else {
                 // Catchall non-range index, i.e., [n] or [n << m]
                 if let ty::Array(..) = ty.kind() {
+                    // Index is a const block.
+                    if let ExprKind::ConstBlock(..) = index.kind {
+                        return;
+                    }
                     // Index is a constant uint.
                     if let Some(..) = constant(cx, cx.typeck_results(), index) {
                         // Let rustc's `const_err` lint handle constant `usize` indexing on arrays.