rust-clippy/tests/ui/manual_async_fn.stderr

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error: this function can be simplified using the `async fn` syntax
--> tests/ui/manual_async_fn.rs:6:1
|
LL | fn fut() -> impl Future<Output = i32> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: `-D clippy::manual-async-fn` implied by `-D warnings`
= help: to override `-D warnings` add `#[allow(clippy::manual_async_fn)]`
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
--> tests/ui/manual_async_fn.rs:11:1
|
LL | fn fut2() ->impl Future<Output = i32> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: make the function `async` and return the output of the future directly
|
LL | async fn fut2() -> i32 {
| ~~~~~~~~~~~~~~~~~~~~~~
help: move the body of the async block to the enclosing function
|
LL | fn fut2() ->impl Future<Output = i32> { 42 }
| ~~~~~~
error: this function can be simplified using the `async fn` syntax
--> tests/ui/manual_async_fn.rs:16:1
|
LL | fn fut3()-> impl Future<Output = i32> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: make the function `async` and return the output of the future directly
|
LL | async fn fut3() -> i32 {
| ~~~~~~~~~~~~~~~~~~~~~~
help: move the body of the async block to the enclosing function
|
LL | fn fut3()-> impl Future<Output = i32> { 42 }
| ~~~~~~
error: this function can be simplified using the `async fn` syntax
--> tests/ui/manual_async_fn.rs:20:1
|
LL | fn empty_fut() -> impl Future<Output = ()> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: make the function `async` and remove the return type
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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
--> tests/ui/manual_async_fn.rs:25:1
|
LL | fn empty_fut2() ->impl Future<Output = ()> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: make the function `async` and remove the return type
|
LL | async fn empty_fut2() {
| ~~~~~~~~~~~~~~~~~~~~~
help: move the body of the async block to the enclosing function
|
LL | fn empty_fut2() ->impl Future<Output = ()> {}
| ~~
error: this function can be simplified using the `async fn` syntax
--> tests/ui/manual_async_fn.rs:30:1
|
LL | fn empty_fut3()-> impl Future<Output = ()> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: make the function `async` and remove the return type
|
LL | async fn empty_fut3() {
| ~~~~~~~~~~~~~~~~~~~~~
help: move the body of the async block to the enclosing function
|
LL | fn empty_fut3()-> impl Future<Output = ()> {}
| ~~
error: this function can be simplified using the `async fn` syntax
--> tests/ui/manual_async_fn.rs:34:1
|
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
--> tests/ui/manual_async_fn.rs:56:5
|
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;
LL + let d = 42;
LL + if c < d {
LL + let _ = 42;
LL + }
LL + }
LL + 42
LL + }
|
error: this function can be simplified using the `async fn` syntax
--> tests/ui/manual_async_fn.rs:91:1
|
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
--> tests/ui/manual_async_fn.rs:100:1
|
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: this function can be simplified using the `async fn` syntax
--> tests/ui/manual_async_fn.rs:129:1
|
LL | pub fn issue_10450() -> impl Future<Output = i32> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: make the function `async` and return the output of the future directly
|
LL | pub async fn issue_10450() -> i32 {
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
help: move the body of the async block to the enclosing function
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LL | pub fn issue_10450() -> impl Future<Output = i32> { 42 }
| ~~~~~~
error: this function can be simplified using the `async fn` syntax
--> tests/ui/manual_async_fn.rs:133:1
|
LL | pub(crate) fn issue_10450_2() -> impl Future<Output = i32> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: make the function `async` and return the output of the future directly
|
LL | pub(crate) async fn issue_10450_2() -> i32 {
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
help: move the body of the async block to the enclosing function
|
LL | pub(crate) fn issue_10450_2() -> impl Future<Output = i32> { 42 }
| ~~~~~~
error: this function can be simplified using the `async fn` syntax
--> tests/ui/manual_async_fn.rs:137:1
|
LL | pub(self) fn issue_10450_3() -> impl Future<Output = i32> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: make the function `async` and return the output of the future directly
|
LL | pub(self) async fn issue_10450_3() -> i32 {
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
help: move the body of the async block to the enclosing function
|
LL | pub(self) fn issue_10450_3() -> impl Future<Output = i32> { 42 }
| ~~~~~~
error: aborting due to 13 previous errors