Move MSRV tests into the lint specific test files

[rust.git] / tests / ui / indexing_slicing_index.rs

diff --git a/tests/ui/indexing_slicing_index.rs b/tests/ui/indexing_slicing_index.rs
index 000d5269930ba8f29a69a8c496c7cded649a14dc..4476e0eb9220a636eb6c813ec414e661584c8c79 100644 (file)
--- a/tests/ui/indexing_slicing_index.rs
+++ b/tests/ui/indexing_slicing_index.rs
@@ -1,21 +1,38 @@
+#![feature(inline_const)]
 #![warn(clippy::indexing_slicing)]
 // We also check the out_of_bounds_indexing lint here, because it lints similar things and
 // we want to avoid false positives.
 #![warn(clippy::out_of_bounds_indexing)]
-#![allow(clippy::no_effect, clippy::unnecessary_operation)]
+#![allow(unconditional_panic, clippy::no_effect, clippy::unnecessary_operation)]
+
+const ARR: [i32; 2] = [1, 2];
+const REF: &i32 = &ARR[idx()]; // Ok, should not produce stderr.
+const REF_ERR: &i32 = &ARR[idx4()]; // Ok, let rustc handle const contexts.
+
+const fn idx() -> usize {
+    1
+}
+const fn idx4() -> usize {
+    4
+}
 
 fn main() {
     let x = [1, 2, 3, 4];
     let index: usize = 1;
     x[index];
-    x[4]; // Ok, let rustc's `const_err` lint handle `usize` indexing on arrays.
-    x[1 << 3]; // Ok, let rustc's `const_err` lint handle `usize` indexing on arrays.
+    x[4]; // Ok, let rustc's `unconditional_panic` lint handle `usize` indexing on arrays.
+    x[1 << 3]; // Ok, let rustc's `unconditional_panic` lint handle `usize` indexing on arrays.
 
     x[0]; // Ok, should not produce stderr.
     x[3]; // Ok, should not produce stderr.
+    x[const { idx() }]; // Ok, should not produce stderr.
+    x[const { idx4() }]; // Ok, let rustc's `unconditional_panic` lint handle `usize` indexing on arrays.
+    const { &ARR[idx()] }; // Ok, should not produce stderr.
+    const { &ARR[idx4()] }; // Ok, let rustc handle const contexts.
 
     let y = &x;
-    y[0];
+    y[0]; // Ok, referencing shouldn't affect this lint. See the issue 6021
+    y[4]; // Ok, rustc will handle references too.
 
     let v = vec![0; 5];
     v[0];
@@ -24,7 +41,7 @@ fn main() {
 
     const N: usize = 15; // Out of bounds
     const M: usize = 3; // In bounds
-    x[N]; // Ok, let rustc's `const_err` lint handle `usize` indexing on arrays.
+    x[N]; // Ok, let rustc's `unconditional_panic` lint handle `usize` indexing on arrays.
     x[M]; // Ok, should not produce stderr.
     v[N];
     v[M];