src/test/mir-opt/generator-tiny.rs


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25

//! Tests that generators that cannot return or unwind don't have unnecessary
//! panic branches.

// compile-flags: -Zno-landing-pads

#![feature(generators, generator_trait)]

struct HasDrop;

impl Drop for HasDrop {
    fn drop(&mut self) {}
}

fn callee() {}

// EMIT_MIR rustc.main-{{closure}}.generator_resume.0.mir
fn main() {
    let _gen = |_x: u8| {
        let _d = HasDrop;
        loop {
            yield;
            callee();
        }
    };
}