| // Test that the recursion limit can be changed and that the compiler |
| // suggests a fix. In this case, we have deeply nested types that will |
| // fail the `Send` check by overflow when the recursion limit is set |
| // very low. |
| |
| #![allow(dead_code)] |
| #![recursion_limit="10"] |
| |
| macro_rules! link { |
| ($id:ident, $t:ty) => { |
| enum $id { $id($t) } |
| } |
| } |
| |
| link! { A, B } |
| link! { B, C } |
| link! { C, D } |
| link! { D, E } |
| link! { E, F } |
| link! { F, G } |
| link! { G, H } |
| link! { H, I } |
| link! { I, J } |
| link! { J, K } |
| link! { K, L } |
| link! { L, M } |
| link! { M, N } |
| |
| enum N { N(usize) } |
| |
| fn is_send<T:Send>() { } |
| |
| fn main() { |
| is_send::<A>(); //~ ERROR overflow evaluating the requirement |
| } |