diff options
Diffstat (limited to 'tests/ui/async-await/issue-72442.rs')
-rw-r--r-- | tests/ui/async-await/issue-72442.rs | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/tests/ui/async-await/issue-72442.rs b/tests/ui/async-await/issue-72442.rs new file mode 100644 index 000000000..2280154c7 --- /dev/null +++ b/tests/ui/async-await/issue-72442.rs @@ -0,0 +1,26 @@ +// edition:2018 +// incremental + +use std::fs::File; +use std::future::Future; +use std::io::prelude::*; + +fn main() -> Result<(), Box<dyn std::error::Error>> { + block_on(async { + { + let path = std::path::Path::new("."); + let mut f = File::open(path.to_str())?; + //~^ ERROR the trait bound + let mut src = String::new(); + f.read_to_string(&mut src)?; + Ok(()) + } + }) +} + +fn block_on<F>(f: F) -> F::Output +where + F: Future<Output = Result<(), Box<dyn std::error::Error>>>, +{ + Ok(()) +} |