diff options
Diffstat (limited to 'tests/ui/generator/print/generator-print-verbose-1.stderr')
-rw-r--r-- | tests/ui/generator/print/generator-print-verbose-1.stderr | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/tests/ui/generator/print/generator-print-verbose-1.stderr b/tests/ui/generator/print/generator-print-verbose-1.stderr new file mode 100644 index 000000000..ebf35be58 --- /dev/null +++ b/tests/ui/generator/print/generator-print-verbose-1.stderr @@ -0,0 +1,62 @@ +error: generator cannot be sent between threads safely + --> $DIR/generator-print-verbose-1.rs:37:18 + | +LL | require_send(send_gen); + | ^^^^^^^^ generator is not `Send` + | + = help: the trait `Sync` is not implemented for `RefCell<i32>` +note: generator is not `Send` as this value is used across a yield + --> $DIR/generator-print-verbose-1.rs:35:9 + | +LL | let _non_send_gen = make_non_send_generator(); + | ------------- has type `Opaque(DefId(0:34 ~ generator_print_verbose_1[749a]::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:26:25 + | +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:56:18 + | +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: required for `Arc<RefCell<i32>>` to implement `Send` +note: required because it's used within this generator + --> $DIR/generator-print-verbose-1.rs:42:5 + | +LL | || { + | ^^ +note: required because it appears within the type `Opaque(DefId(0:35 ~ generator_print_verbose_1[749a]::make_gen2::{opaque#0}), [Arc<RefCell<i32>>])` + --> $DIR/generator-print-verbose-1.rs:41:30 + | +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[749a]::make_non_send_generator2::{opaque#0}), [])` + --> $DIR/generator-print-verbose-1.rs:47:34 + | +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[749a]::make_non_send_generator2::{opaque#0}), [])`, `()` +note: required because it's used within this generator + --> $DIR/generator-print-verbose-1.rs:52:20 + | +LL | let send_gen = || { + | ^^ +note: required by a bound in `require_send` + --> $DIR/generator-print-verbose-1.rs:26:25 + | +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`. |