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// Test that overloaded index expressions with DST result types
// can't be used as rvalues
use std::ops::Index;
use std::fmt::Debug;
#[derive(Copy, Clone)]
struct S;
impl Index<usize> for S {
type Output = str;
fn index(&self, _: usize) -> &str {
"hello"
}
}
#[derive(Copy, Clone)]
struct T;
impl Index<usize> for T {
type Output = dyn Debug + 'static;
fn index<'a>(&'a self, idx: usize) -> &'a (dyn Debug + 'static) {
static x: usize = 42;
&x
}
}
fn main() {
S[0];
//~^ ERROR cannot move out of index of `S`
//~^^ ERROR E0161
T[0];
//~^ ERROR cannot move out of index of `T`
//~^^ ERROR E0161
}
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