rust/src/test/run-pass/generator/static-generators.rs
2019-01-27 22:58:53 +01:00

21 lines
616 B
Rust

// run-pass
#![feature(generators, generator_trait)]
use std::pin::Pin;
use std::ops::{Generator, GeneratorState};
fn main() {
let mut generator = static || {
let a = true;
let b = &a;
yield;
assert_eq!(b as *const _, &a as *const _);
};
// Safety: We shadow the original generator variable so have no safe API to
// move it after this point.
let mut generator = unsafe { Pin::new_unchecked(&mut generator) };
assert_eq!(generator.as_mut().resume(), GeneratorState::Yielded(()));
assert_eq!(generator.as_mut().resume(), GeneratorState::Complete(()));
}