From 61ed813c789dc5e60ec39f907e771540d7a8c1b6 Mon Sep 17 00:00:00 2001 From: Yuki Okushi <huyuumi.dev@gmail.com> Date: Thu, 16 Apr 2020 10:09:59 +0900 Subject: [PATCH] Add test for issue-67893 --- .../issues/auxiliary/issue_67893.rs | 10 ++++++++ src/test/ui/async-await/issues/issue-67893.rs | 11 +++++++++ .../ui/async-await/issues/issue-67893.stderr | 24 +++++++++++++++++++ 3 files changed, 45 insertions(+) create mode 100644 src/test/ui/async-await/issues/auxiliary/issue_67893.rs create mode 100644 src/test/ui/async-await/issues/issue-67893.rs create mode 100644 src/test/ui/async-await/issues/issue-67893.stderr diff --git a/src/test/ui/async-await/issues/auxiliary/issue_67893.rs b/src/test/ui/async-await/issues/auxiliary/issue_67893.rs new file mode 100644 index 0000000000000..387966a5064fa --- /dev/null +++ b/src/test/ui/async-await/issues/auxiliary/issue_67893.rs @@ -0,0 +1,10 @@ +// edition:2018 + +use std::sync::{Arc, Mutex}; + +pub async fn f(_: ()) {} + +pub async fn run() { + let x: Arc<Mutex<()>> = unimplemented!(); + f(*x.lock().unwrap()).await; +} diff --git a/src/test/ui/async-await/issues/issue-67893.rs b/src/test/ui/async-await/issues/issue-67893.rs new file mode 100644 index 0000000000000..9679e3807b629 --- /dev/null +++ b/src/test/ui/async-await/issues/issue-67893.rs @@ -0,0 +1,11 @@ +// aux-build: issue_67893.rs +// edition:2018 + +extern crate issue_67893; + +fn g(_: impl Send) {} + +fn main() { + g(issue_67893::run()) + //~^ ERROR: `std::sync::MutexGuard<'_, ()>` cannot be sent between threads safely +} diff --git a/src/test/ui/async-await/issues/issue-67893.stderr b/src/test/ui/async-await/issues/issue-67893.stderr new file mode 100644 index 0000000000000..567a4c91b5570 --- /dev/null +++ b/src/test/ui/async-await/issues/issue-67893.stderr @@ -0,0 +1,24 @@ +error[E0277]: `std::sync::MutexGuard<'_, ()>` cannot be sent between threads safely + --> $DIR/issue-67893.rs:9:5 + | +LL | fn g(_: impl Send) {} + | ---- required by this bound in `g` +... +LL | g(issue_67893::run()) + | ^ `std::sync::MutexGuard<'_, ()>` cannot be sent between threads safely + | + ::: $DIR/auxiliary/issue_67893.rs:7:20 + | +LL | pub async fn run() { + | - within this `impl std::future::Future` + | + = help: within `impl std::future::Future`, the trait `std::marker::Send` is not implemented for `std::sync::MutexGuard<'_, ()>` + = note: required because it appears within the type `for<'r, 's, 't0, 't1, 't2, 't3> {std::future::ResumeTy, std::sync::Arc<std::sync::Mutex<()>>, &'r std::sync::Mutex<()>, std::result::Result<std::sync::MutexGuard<'s, ()>, std::sync::PoisonError<std::sync::MutexGuard<'t0, ()>>>, &'t1 std::sync::MutexGuard<'t2, ()>, std::sync::MutexGuard<'t3, ()>, (), impl std::future::Future}` + = note: required because it appears within the type `[static generator@DefId(15:11 ~ issue_67893[8787]::run[0]::{{closure}}[0]) for<'r, 's, 't0, 't1, 't2, 't3> {std::future::ResumeTy, std::sync::Arc<std::sync::Mutex<()>>, &'r std::sync::Mutex<()>, std::result::Result<std::sync::MutexGuard<'s, ()>, std::sync::PoisonError<std::sync::MutexGuard<'t0, ()>>>, &'t1 std::sync::MutexGuard<'t2, ()>, std::sync::MutexGuard<'t3, ()>, (), impl std::future::Future}]` + = note: required because it appears within the type `std::future::from_generator::GenFuture<[static generator@DefId(15:11 ~ issue_67893[8787]::run[0]::{{closure}}[0]) for<'r, 's, 't0, 't1, 't2, 't3> {std::future::ResumeTy, std::sync::Arc<std::sync::Mutex<()>>, &'r std::sync::Mutex<()>, std::result::Result<std::sync::MutexGuard<'s, ()>, std::sync::PoisonError<std::sync::MutexGuard<'t0, ()>>>, &'t1 std::sync::MutexGuard<'t2, ()>, std::sync::MutexGuard<'t3, ()>, (), impl std::future::Future}]>` + = note: required because it appears within the type `impl std::future::Future` + = note: required because it appears within the type `impl std::future::Future` + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0277`.