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Rollup merge of #68212 - csmoe:temp, r=estebank

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Suggest to shorten temporary lifetime during method call inside generator

Closes https://github.com/rust-lang/rust/issues/67376
![image](https://user-images.githubusercontent.com/35686186/72364752-f6b1e400-3731-11ea-8ec9-8297ba4c6c77.png)

r? @estebank
cc @tmandry @nikomatsakis
This commit is contained in:
Dylan DPC 2020-01-15 22:49:26 +05:30 • committed by GitHub
commit ae1e75bf4e
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7 changed files with 60 additions and 16 deletions
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5
src/test/ui/async-await/issue-64130-4-async-move.stderr
View file

@ -16,6 +16,11 @@ LL | let _x = get().await;
...
LL | }
| - `client` is later dropped here
help: consider moving this method call into a `let` binding to create a shorter lived borrow
--> $DIR/issue-64130-4-async-move.rs:19:15
|
LL | match client.status() {
| ^^^^^^^^^^^^^^^
= note: the return type of a function must have a statically known size
error: aborting due to previous error

2
src/test/ui/generator/not-send-sync.stderr
View file

@ -20,7 +20,7 @@ LL | fn assert_sync<T: Sync>(_: T) {}
LL | assert_sync(|| {
| ^^^^^^^^^^^ future returned by `main` is not `Sync`
|
= help: within `[generator@$DIR/not-send-sync.rs:9:17: 13:6 {std::cell::Cell<i32>, ()}]`, the trait `std::marker::Sync` is not implemented for `std::cell::Cell<i32>`
= help: within `[generator@$DIR/not-send-sync.rs:9:17: 13:6 {std::cell::Cell<i32>, (), ()}]`, the trait `std::marker::Sync` is not implemented for `std::cell::Cell<i32>`
note: future is not `Sync` as this value is used across an yield
--> $DIR/not-send-sync.rs:12:9
|

4
src/test/ui/impl-trait/recursive-impl-trait-type-indirect.stderr
View file

@ -76,7 +76,7 @@ error[E0720]: opaque type expands to a recursive type
LL | fn generator_capture() -> impl Sized {
| ^^^^^^^^^^ expands to a recursive type
|
= note: expanded type is `[generator@$DIR/recursive-impl-trait-type-indirect.rs:50:5: 50:26 x:impl Sized {()}]`
= note: expanded type is `[generator@$DIR/recursive-impl-trait-type-indirect.rs:50:5: 50:26 x:impl Sized {(), ()}]`
error[E0720]: opaque type expands to a recursive type
--> $DIR/recursive-impl-trait-type-indirect.rs:53:26
@ -92,7 +92,7 @@ error[E0720]: opaque type expands to a recursive type
LL | fn generator_hold() -> impl Sized {
| ^^^^^^^^^^ expands to a recursive type
|
= note: expanded type is `[generator@$DIR/recursive-impl-trait-type-indirect.rs:58:5: 62:6 {impl Sized, ()}]`
= note: expanded type is `[generator@$DIR/recursive-impl-trait-type-indirect.rs:58:5: 62:6 {impl Sized, (), ()}]`
error[E0720]: opaque type expands to a recursive type
--> $DIR/recursive-impl-trait-type-indirect.rs:69:26