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