65 lines
3.0 KiB
Plaintext
65 lines
3.0 KiB
Plaintext
error: generator cannot be sent between threads safely
|
|
--> $DIR/generator-print-verbose-1.rs:40:18
|
|
|
|
|
LL | require_send(send_gen);
|
|
| ^^^^^^^^ generator is not `Send`
|
|
|
|
|
= help: the trait `Sync` is not implemented for `RefCell<i32>`
|
|
= note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` instead
|
|
note: generator is not `Send` as this value is used across a yield
|
|
--> $DIR/generator-print-verbose-1.rs:38:9
|
|
|
|
|
LL | let _non_send_gen = make_non_send_generator();
|
|
| ------------- has type `Opaque(DefId(0:34 ~ generator_print_verbose_1[7d1d]::make_non_send_generator::{opaque#0}), [])` which is not `Send`
|
|
LL | yield;
|
|
| ^^^^^ yield occurs here, with `_non_send_gen` maybe used later
|
|
LL | };
|
|
| - `_non_send_gen` is later dropped here
|
|
note: required by a bound in `require_send`
|
|
--> $DIR/generator-print-verbose-1.rs:29:25
|
|
|
|
|
LL | fn require_send(_: impl Send) {}
|
|
| ^^^^ required by this bound in `require_send`
|
|
|
|
error[E0277]: `RefCell<i32>` cannot be shared between threads safely
|
|
--> $DIR/generator-print-verbose-1.rs:59:18
|
|
|
|
|
LL | require_send(send_gen);
|
|
| ------------ ^^^^^^^^ `RefCell<i32>` cannot be shared between threads safely
|
|
| |
|
|
| required by a bound introduced by this call
|
|
|
|
|
= help: the trait `Sync` is not implemented for `RefCell<i32>`
|
|
= note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` instead
|
|
= note: required for `Arc<RefCell<i32>>` to implement `Send`
|
|
note: required because it's used within this generator
|
|
--> $DIR/generator-print-verbose-1.rs:45:5
|
|
|
|
|
LL | || {
|
|
| ^^
|
|
note: required because it appears within the type `Opaque(DefId(0:35 ~ generator_print_verbose_1[7d1d]::make_gen2::{opaque#0}), [Arc<RefCell<i32>>])`
|
|
--> $DIR/generator-print-verbose-1.rs:44:30
|
|
|
|
|
LL | pub fn make_gen2<T>(t: T) -> impl Generator<Return = T> {
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
note: required because it appears within the type `Opaque(DefId(0:36 ~ generator_print_verbose_1[7d1d]::make_non_send_generator2::{opaque#0}), [])`
|
|
--> $DIR/generator-print-verbose-1.rs:50:34
|
|
|
|
|
LL | fn make_non_send_generator2() -> impl Generator<Return = Arc<RefCell<i32>>> {
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
= note: required because it captures the following types: `Opaque(DefId(0:36 ~ generator_print_verbose_1[7d1d]::make_non_send_generator2::{opaque#0}), [])`, `()`
|
|
note: required because it's used within this generator
|
|
--> $DIR/generator-print-verbose-1.rs:55:20
|
|
|
|
|
LL | let send_gen = || {
|
|
| ^^
|
|
note: required by a bound in `require_send`
|
|
--> $DIR/generator-print-verbose-1.rs:29:25
|
|
|
|
|
LL | fn require_send(_: impl Send) {}
|
|
| ^^^^ required by this bound in `require_send`
|
|
|
|
error: aborting due to 2 previous errors
|
|
|
|
For more information about this error, try `rustc --explain E0277`.
|