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Move binder and polarity parsing into parse_generic_ty_bound
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Original file line number | Diff line number | Diff line change |
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fn foo<T>() where T: for<'a> 'a {} | ||
//~^ ERROR `for<...>` may only modify trait bounds, not lifetime bounds | ||
//~| ERROR use of undeclared lifetime name `'a` [E0261] | ||
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fn main() {} |
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@@ -0,0 +1,25 @@ | ||
error: `for<...>` may only modify trait bounds, not lifetime bounds | ||
--> $DIR/erroneous-lifetime-bound.rs:1:25 | ||
| | ||
LL | fn foo<T>() where T: for<'a> 'a {} | ||
| ^^^^ | ||
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error[E0261]: use of undeclared lifetime name `'a` | ||
--> $DIR/erroneous-lifetime-bound.rs:1:30 | ||
| | ||
LL | fn foo<T>() where T: for<'a> 'a {} | ||
| ^^ undeclared lifetime | ||
| | ||
= note: for more information on higher-ranked polymorphism, visit https://doc.rust-lang.org/nomicon/hrtb.html | ||
help: consider making the bound lifetime-generic with a new `'a` lifetime | ||
| | ||
LL | fn foo<T>() where for<'a> T: for<'a> 'a {} | ||
| +++++++ | ||
help: consider introducing lifetime `'a` here | ||
| | ||
LL | fn foo<'a, T>() where T: for<'a> 'a {} | ||
| +++ | ||
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error: aborting due to 2 previous errors | ||
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||
For more information about this error, try `rustc --explain E0261`. |
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Original file line number | Diff line number | Diff line change |
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//@ edition: 2021 | ||
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#![feature(precise_capturing)] | ||
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fn polarity() -> impl Sized + ?use<> {} | ||
//~^ ERROR expected identifier, found keyword `use` | ||
//~| ERROR cannot find trait `r#use` in this scope | ||
//~| WARN relaxing a default bound only does something for `?Sized` | ||
//~| WARN relaxing a default bound only does something for `?Sized` | ||
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fn asyncness() -> impl Sized + async use<> {} | ||
//~^ ERROR expected identifier, found keyword `use` | ||
//~| ERROR cannot find trait `r#use` in this scope | ||
//~| ERROR async closures are unstable | ||
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fn constness() -> impl Sized + const use<> {} | ||
//~^ ERROR expected identifier, found keyword `use` | ||
//~| ERROR cannot find trait `r#use` in this scope | ||
//~| ERROR const trait impls are experimental | ||
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fn binder() -> impl Sized + for<'a> use<> {} | ||
//~^ ERROR expected identifier, found keyword `use` | ||
//~| ERROR cannot find trait `r#use` in this scope | ||
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fn main() {} |
87 changes: 87 additions & 0 deletions
87
tests/ui/impl-trait/precise-capturing/bound-modifiers.stderr
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error: expected identifier, found keyword `use` | ||
--> $DIR/bound-modifiers.rs:5:32 | ||
| | ||
LL | fn polarity() -> impl Sized + ?use<> {} | ||
| ^^^ expected identifier, found keyword | ||
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error: expected identifier, found keyword `use` | ||
--> $DIR/bound-modifiers.rs:11:38 | ||
| | ||
LL | fn asyncness() -> impl Sized + async use<> {} | ||
| ^^^ expected identifier, found keyword | ||
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error: expected identifier, found keyword `use` | ||
--> $DIR/bound-modifiers.rs:16:38 | ||
| | ||
LL | fn constness() -> impl Sized + const use<> {} | ||
| ^^^ expected identifier, found keyword | ||
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error: expected identifier, found keyword `use` | ||
--> $DIR/bound-modifiers.rs:21:37 | ||
| | ||
LL | fn binder() -> impl Sized + for<'a> use<> {} | ||
| ^^^ expected identifier, found keyword | ||
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error[E0405]: cannot find trait `r#use` in this scope | ||
--> $DIR/bound-modifiers.rs:5:32 | ||
| | ||
LL | fn polarity() -> impl Sized + ?use<> {} | ||
| ^^^ not found in this scope | ||
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error[E0405]: cannot find trait `r#use` in this scope | ||
--> $DIR/bound-modifiers.rs:11:38 | ||
| | ||
LL | fn asyncness() -> impl Sized + async use<> {} | ||
| ^^^ not found in this scope | ||
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error[E0405]: cannot find trait `r#use` in this scope | ||
--> $DIR/bound-modifiers.rs:16:38 | ||
| | ||
LL | fn constness() -> impl Sized + const use<> {} | ||
| ^^^ not found in this scope | ||
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error[E0405]: cannot find trait `r#use` in this scope | ||
--> $DIR/bound-modifiers.rs:21:37 | ||
| | ||
LL | fn binder() -> impl Sized + for<'a> use<> {} | ||
| ^^^ not found in this scope | ||
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error[E0658]: async closures are unstable | ||
--> $DIR/bound-modifiers.rs:11:32 | ||
| | ||
LL | fn asyncness() -> impl Sized + async use<> {} | ||
| ^^^^^ | ||
| | ||
= note: see issue #62290 <https://github.com/rust-lang/rust/issues/62290> for more information | ||
= help: add `#![feature(async_closure)]` to the crate attributes to enable | ||
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date | ||
= help: to use an async block, remove the `||`: `async {` | ||
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error[E0658]: const trait impls are experimental | ||
--> $DIR/bound-modifiers.rs:16:32 | ||
| | ||
LL | fn constness() -> impl Sized + const use<> {} | ||
| ^^^^^ | ||
| | ||
= note: see issue #67792 <https://github.com/rust-lang/rust/issues/67792> for more information | ||
= help: add `#![feature(const_trait_impl)]` to the crate attributes to enable | ||
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date | ||
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warning: relaxing a default bound only does something for `?Sized`; all other traits are not bound by default | ||
--> $DIR/bound-modifiers.rs:5:31 | ||
| | ||
LL | fn polarity() -> impl Sized + ?use<> {} | ||
| ^^^^^^ | ||
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warning: relaxing a default bound only does something for `?Sized`; all other traits are not bound by default | ||
--> $DIR/bound-modifiers.rs:5:31 | ||
| | ||
LL | fn polarity() -> impl Sized + ?use<> {} | ||
| ^^^^^^ | ||
| | ||
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` | ||
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error: aborting due to 10 previous errors; 2 warnings emitted | ||
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Some errors have detailed explanations: E0405, E0658. | ||
For more information about an error, try `rustc --explain E0405`. |