diff options
Diffstat (limited to 'src/doc/book/listings/ch16-fearless-concurrency/listing-16-09')
4 files changed, 43 insertions, 0 deletions
diff --git a/src/doc/book/listings/ch16-fearless-concurrency/listing-16-09/Cargo.lock b/src/doc/book/listings/ch16-fearless-concurrency/listing-16-09/Cargo.lock new file mode 100644 index 000000000..55d2252da --- /dev/null +++ b/src/doc/book/listings/ch16-fearless-concurrency/listing-16-09/Cargo.lock @@ -0,0 +1,6 @@ +# This file is automatically @generated by Cargo. +# It is not intended for manual editing. +[[package]] +name = "message-passing" +version = "0.1.0" + diff --git a/src/doc/book/listings/ch16-fearless-concurrency/listing-16-09/Cargo.toml b/src/doc/book/listings/ch16-fearless-concurrency/listing-16-09/Cargo.toml new file mode 100644 index 000000000..24bd2ee7b --- /dev/null +++ b/src/doc/book/listings/ch16-fearless-concurrency/listing-16-09/Cargo.toml @@ -0,0 +1,6 @@ +[package] +name = "message-passing" +version = "0.1.0" +edition = "2021" + +[dependencies] diff --git a/src/doc/book/listings/ch16-fearless-concurrency/listing-16-09/output.txt b/src/doc/book/listings/ch16-fearless-concurrency/listing-16-09/output.txt new file mode 100644 index 000000000..0795a3a4f --- /dev/null +++ b/src/doc/book/listings/ch16-fearless-concurrency/listing-16-09/output.txt @@ -0,0 +1,16 @@ +$ cargo run + Compiling message-passing v0.1.0 (file:///projects/message-passing) +error[E0382]: borrow of moved value: `val` + --> src/main.rs:10:31 + | +8 | let val = String::from("hi"); + | --- move occurs because `val` has type `String`, which does not implement the `Copy` trait +9 | tx.send(val).unwrap(); + | --- value moved here +10 | println!("val is {}", val); + | ^^^ value borrowed here after move + | + = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info) + +For more information about this error, try `rustc --explain E0382`. +error: could not compile `message-passing` due to previous error diff --git a/src/doc/book/listings/ch16-fearless-concurrency/listing-16-09/src/main.rs b/src/doc/book/listings/ch16-fearless-concurrency/listing-16-09/src/main.rs new file mode 100644 index 000000000..98a8129ab --- /dev/null +++ b/src/doc/book/listings/ch16-fearless-concurrency/listing-16-09/src/main.rs @@ -0,0 +1,15 @@ +use std::sync::mpsc; +use std::thread; + +fn main() { + let (tx, rx) = mpsc::channel(); + + thread::spawn(move || { + let val = String::from("hi"); + tx.send(val).unwrap(); + println!("val is {}", val); + }); + + let received = rx.recv().unwrap(); + println!("Got: {}", received); +} |