remove unused mut, restructure the test · rust-lang/rust@a674e1c (original) (raw)

Original file line number	Diff line number	Diff line change
@@ -132,18 +132,18 @@ fn test_discriminant_send_sync() {
132	132
133	133	#[test]
134	134	fn test_const_forget() {
135		-const fn test_const_forget<T>(x: T) {
136		-forget(x);
137		-}
	135	+const _: () = forget(0i32);
	136	+const _: () = forget(Vec::<Vec<Box<i32>>>::new());
138	137
139	138	// Writing this function signature without const-forget
140	139	// triggers compiler errors:
141	140	// 1) That we use a non-const fn inside a const fn
142	141	// 2) without the forget, it complains about the destructor of Box
143		-const fn const_forget_box<T>(mut x: Box<T>) {
	142	+const fn const_forget_box<T>(x: Box<T>) {
144	143	forget(x);
145	144	}
146	145
147		-const _: () = test_const_forget(0i32);
148		-const _: () = test_const_forget(Vec::<Vec<Box<i32>>>::new());
	146	+// Call the forget_box at runtime,
	147	+// as we can't const-construct a box yet.
	148	+const_forget_box(Box::new(0i32));
149	149	}