mirror of https://github.com/rust-lang/rust
35 lines
625 B
Rust
35 lines
625 B
Rust
//@ run-pass
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#![allow(unused_variables)]
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// Test that overloaded index expressions with DST result types
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// work and don't ICE.
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use std::ops::Index;
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use std::fmt::Debug;
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struct S;
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impl Index<usize> for S {
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type Output = str;
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fn index<'a>(&'a self, _: usize) -> &'a str {
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"hello"
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}
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}
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struct T;
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impl Index<usize> for T {
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type Output = dyn Debug + 'static;
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fn index<'a>(&'a self, idx: usize) -> &'a (dyn Debug + 'static) {
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static X: usize = 42;
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&X as &(dyn Debug + 'static)
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}
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}
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fn main() {
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assert_eq!(&S[0], "hello");
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let _ = &T[0];
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// let x = &x as &Debug;
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}
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