tests/ui/codegen/llvm-miscompile-metadata-invalidation-36023.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

// https://github.com/rust-lang/rust/issues/36023
//@ run-pass
#![allow(unused_variables)]
use std::ops::Deref;

fn main() {
    if env_var("FOOBAR").as_ref().map(Deref::deref).ok() == Some("yes") {
        panic!()
    }

    let env_home: Result<String, ()> = Ok("foo-bar-baz".to_string());
    let env_home = env_home.as_ref().map(Deref::deref).ok();

    if env_home == Some("") { panic!() }
}

#[inline(never)]
fn env_var(s: &str) -> Result<String, VarError> {
    Err(VarError::NotPresent)
}

pub enum VarError {
    NotPresent,
    NotUnicode(String),
}