1 files changed, 48 insertions, 0 deletions
diff --git a/tests/ui/const-generics/min_const_generics/complex-expression.rs b/tests/ui/const-generics/min_const_generics/complex-expression.rs
new file mode 100644
index 000000000..8e667aeba
--- /dev/null
+++ b/tests/ui/const-generics/min_const_generics/complex-expression.rs
@@ -0,0 +1,48 @@
+// compile-flags: -Zdeduplicate-diagnostics=yes
+use std::mem::size_of;
+
+fn test<const N: usize>() {}
+
+fn ok<const M: usize>() -> [u8; M] {
+    [0; { M }]
+}
+
+struct Break0<const N: usize>([u8; { N + 1 }]);
+//~^ ERROR generic parameters may not be used in const operations
+
+struct Break1<const N: usize>([u8; { { N } }]);
+//~^ ERROR generic parameters may not be used in const operations
+
+fn break2<const N: usize>() {
+    let _: [u8; N + 1];
+    //~^ ERROR generic parameters may not be used in const operations
+}
+
+fn break3<const N: usize>() {
+    let _ = [0; N + 1];
+    //~^ ERROR generic parameters may not be used in const operations
+}
+
+struct BreakTy0<T>(T, [u8; { size_of::<*mut T>() }]);
+//~^ ERROR generic parameters may not be used in const operations
+
+struct BreakTy1<T>(T, [u8; { { size_of::<*mut T>() } }]);
+//~^ ERROR generic parameters may not be used in const operations
+
+fn break_ty2<T>() {
+    let _: [u8; size_of::<*mut T>() + 1];
+    //~^ ERROR generic parameters may not be used in const operations
+}
+
+fn break_ty3<T>() {
+    let _ = [0; size_of::<*mut T>() + 1];
+    //~^ WARN cannot use constants which depend on generic parameters in types
+    //~| WARN this was previously accepted by the compiler but is being phased out
+}
+
+
+trait Foo {
+    const ASSOC: usize;
+}
+
+fn main() {}