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Diffstat (limited to '')
-rw-r--r-- | src/test/ui/generator/resume-after-return.rs | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/test/ui/generator/resume-after-return.rs b/src/test/ui/generator/resume-after-return.rs new file mode 100644 index 000000000..538609b98 --- /dev/null +++ b/src/test/ui/generator/resume-after-return.rs @@ -0,0 +1,29 @@ +// run-pass +// needs-unwind + +// ignore-wasm32-bare compiled with panic=abort by default + +#![feature(generators, generator_trait)] + +use std::ops::{GeneratorState, Generator}; +use std::pin::Pin; +use std::panic; + +fn main() { + let mut foo = || { + if true { + return + } + yield; + }; + + match Pin::new(&mut foo).resume(()) { + GeneratorState::Complete(()) => {} + s => panic!("bad state: {:?}", s), + } + + match panic::catch_unwind(move || Pin::new(&mut foo).resume(())) { + Ok(_) => panic!("generator successfully resumed"), + Err(_) => {} + } +} |