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// 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),
}
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