rust-clippy/tests/ui/manual_async_fn.stderr

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error: this function can be simplified using the `async fn` syntax
--> $DIR/manual_async_fn.rs:8:1
|
LL | fn fut() -> impl Future<Output = i32> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: `-D clippy::manual-async-fn` implied by `-D warnings`
help: make the function `async` and return the output of the future directly
|
LL | async fn fut() -> i32 {
| ^^^^^^^^^^^^^^^^^^^^^
help: move the body of the async block to the enclosing function
|
LL | fn fut() -> impl Future<Output = i32> { 42 }
| ^^^^^^
error: this function can be simplified using the `async fn` syntax
--> $DIR/manual_async_fn.rs:12:1
|
LL | fn empty_fut() -> impl Future<Output = ()> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: make the function `async` and remove the return type
|
LL | async fn empty_fut() {
| ^^^^^^^^^^^^^^^^^^^^
help: move the body of the async block to the enclosing function
|
LL | fn empty_fut() -> impl Future<Output = ()> {}
| ^^
error: this function can be simplified using the `async fn` syntax
--> $DIR/manual_async_fn.rs:16:1
|
LL | fn core_fut() -> impl core::future::Future<Output = i32> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: make the function `async` and return the output of the future directly
|
LL | async fn core_fut() -> i32 {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
help: move the body of the async block to the enclosing function
|
LL | fn core_fut() -> impl core::future::Future<Output = i32> { 42 }
| ^^^^^^
error: this function can be simplified using the `async fn` syntax
--> $DIR/manual_async_fn.rs:38:5
|
LL | fn inh_fut() -> impl Future<Output = i32> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: make the function `async` and return the output of the future directly
|
LL | async fn inh_fut() -> i32 {
| ^^^^^^^^^^^^^^^^^^^^^^^^^
help: move the body of the async block to the enclosing function
|
LL | fn inh_fut() -> impl Future<Output = i32> {
LL | // NOTE: this code is here just to check that the indentation is correct in the suggested fix
LL | let a = 42;
LL | let b = 21;
LL | if a < b {
LL | let c = 21;
...
error: this function can be simplified using the `async fn` syntax
--> $DIR/manual_async_fn.rs:73:1
|
LL | fn elided(_: &i32) -> impl Future<Output = i32> + '_ {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: make the function `async` and return the output of the future directly
|
LL | async fn elided(_: &i32) -> i32 {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
help: move the body of the async block to the enclosing function
|
LL | fn elided(_: &i32) -> impl Future<Output = i32> + '_ { 42 }
| ^^^^^^
error: this function can be simplified using the `async fn` syntax
--> $DIR/manual_async_fn.rs:82:1
|
LL | fn explicit<'a, 'b>(_: &'a i32, _: &'b i32) -> impl Future<Output = i32> + 'a + 'b {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: make the function `async` and return the output of the future directly
|
LL | async fn explicit<'a, 'b>(_: &'a i32, _: &'b i32) -> i32 {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
help: move the body of the async block to the enclosing function
|
LL | fn explicit<'a, 'b>(_: &'a i32, _: &'b i32) -> impl Future<Output = i32> + 'a + 'b { 42 }
| ^^^^^^
error: aborting due to 6 previous errors