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Rollup merge of #71235 - estebank:lt-sugg-2, r=ecstatic-morse

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Tweak `'static` suggestion code

Fix #71196.
This commit is contained in:
Dylan DPC 2020-04-24 13:14:19 +02:00 • committed by GitHub
commit 7d8a3ad128
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25 changed files with 573 additions and 171 deletions
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6
src/test/ui/associated-types/bound-lifetime-in-binding-only.elision.stderr
View file

@ -2,9 +2,13 @@ error[E0106]: missing lifetime specifier
--> $DIR/bound-lifetime-in-binding-only.rs:52:23
|
LL | fn elision<T: Fn() -> &i32>() {
| ^ help: consider giving it a 'static lifetime: `&'static`
| ^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime
|
LL | fn elision<T: Fn() -> &'static i32>() {
| ^^^^^^^^
error: aborting due to previous error

6
src/test/ui/associated-types/bound-lifetime-in-return-only.elision.stderr
View file

@ -2,9 +2,13 @@ error[E0106]: missing lifetime specifier
--> $DIR/bound-lifetime-in-return-only.rs:34:23
|
LL | fn elision(_: fn() -> &i32) {
| ^ help: consider giving it a 'static lifetime: `&'static`
| ^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime
|
LL | fn elision(_: fn() -> &'static i32) {
| ^^^^^^^^
error: aborting due to previous error

6
src/test/ui/async-await/issues/issue-63388-2.stderr
View file

@ -4,9 +4,13 @@ error[E0106]: missing lifetime specifier
LL | foo: &dyn Foo, bar: &'a dyn Foo
| -------- -----------
LL | ) -> &dyn Foo
| ^ help: consider using the named lifetime: `&'a`
| ^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value, but the signature does not say whether it is borrowed from `foo` or `bar`
help: consider using the `'a` lifetime
|
LL | ) -> &'a dyn Foo
| ^^^
error: aborting due to previous error

6
src/test/ui/c-variadic/variadic-ffi-6.stderr
View file

@ -2,9 +2,13 @@ error[E0106]: missing lifetime specifier
--> $DIR/variadic-ffi-6.rs:7:6
|
LL | ) -> &usize {
| ^ help: consider giving it an explicit bounded or 'static lifetime: `&'static`
| ^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value with an elided lifetime, but the lifetime cannot be derived from the arguments
help: consider using the `'static` lifetime
|
LL | ) -> &'static usize {
| ^^^^^^^^
error: aborting due to previous error

6
src/test/ui/foreign-fn-return-lifetime.stderr
View file

@ -2,9 +2,13 @@ error[E0106]: missing lifetime specifier
--> $DIR/foreign-fn-return-lifetime.rs:5:19
|
LL | pub fn f() -> &u8;
| ^ help: consider giving it a 'static lifetime: `&'static`
| ^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime
|
LL | pub fn f() -> &'static u8;
| ^^^^^^^^
error: aborting due to previous error

25
src/test/ui/generics/issue-65285-incorrect-explicit-lifetime-name-needed.stderr
View file

@ -5,16 +5,33 @@ LL | fn should_error<T>() where T : Into<&u32> {}
| ^ explicit lifetime name needed here
error[E0106]: missing lifetime specifier
--> $DIR/issue-65285-incorrect-explicit-lifetime-name-needed.rs:9:19
--> $DIR/issue-65285-incorrect-explicit-lifetime-name-needed.rs:9:21
|
LL | fn foo<'b, L: X<&'b Nested<K>>>();
| ^^^^^^^^^^^^^^^^ expected lifetime parameter
| ^ expected named lifetime parameter
|
note: these named lifetimes are available to use
--> $DIR/issue-65285-incorrect-explicit-lifetime-name-needed.rs:8:9
|
LL | trait X<'a, K: 'a> {
| ^^
LL | fn foo<'b, L: X<&'b Nested<K>>>();
| ^^
help: consider using one of the available lifetimes here
|
LL | fn foo<'b, L: X<'lifetime, &'b Nested<K>>>();
| ^^^^^^^^^^
error[E0106]: missing lifetime specifier
--> $DIR/issue-65285-incorrect-explicit-lifetime-name-needed.rs:13:15
--> $DIR/issue-65285-incorrect-explicit-lifetime-name-needed.rs:13:17
|
LL | fn bar<'b, L: X<&'b Nested<i32>>>(){}
| ^^^^^^^^^^^^^^^^^^ expected lifetime parameter
| ^ expected named lifetime parameter
|
help: consider using the `'b` lifetime
|
LL | fn bar<'b, L: X<'b, &'b Nested<i32>>>(){}
| ^^^
error: aborting due to 3 previous errors

6
src/test/ui/issues/issue-13497.stderr
View file

@ -2,9 +2,13 @@ error[E0106]: missing lifetime specifier
--> $DIR/issue-13497.rs:2:5
|
LL | &str
| ^ help: consider giving it a 'static lifetime: `&'static`
| ^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime
|
LL | &'static str
| ^^^^^^^^
error: aborting due to previous error

12
src/test/ui/issues/issue-26638.stderr
View file

@ -14,17 +14,25 @@ error[E0106]: missing lifetime specifier
--> $DIR/issue-26638.rs:4:40
|
LL | fn parse_type_2(iter: fn(&u8)->&u8) -> &str { iter() }
| ^ help: consider giving it an explicit bounded or 'static lifetime: `&'static`
| ^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value with an elided lifetime, but the lifetime cannot be derived from the arguments
help: consider using the `'static` lifetime
|
LL | fn parse_type_2(iter: fn(&u8)->&u8) -> &'static str { iter() }
| ^^^^^^^^
error[E0106]: missing lifetime specifier
--> $DIR/issue-26638.rs:7:22
|
LL | fn parse_type_3() -> &str { unimplemented!() }
| ^ help: consider giving it a 'static lifetime: `&'static`
| ^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime
|
LL | fn parse_type_3() -> &'static str { unimplemented!() }
| ^^^^^^^^
error: aborting due to 3 previous errors

24
src/test/ui/lifetimes/lifetime-elision-return-type-requires-explicit-lifetime.stderr
View file

@ -2,9 +2,13 @@ error[E0106]: missing lifetime specifier
--> $DIR/lifetime-elision-return-type-requires-explicit-lifetime.rs:2:11
|
LL | fn f() -> &isize {
| ^ help: consider giving it a 'static lifetime: `&'static`
| ^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime
|
LL | fn f() -> &'static isize {
| ^^^^^^^^
error[E0106]: missing lifetime specifier
--> $DIR/lifetime-elision-return-type-requires-explicit-lifetime.rs:7:33
@ -34,25 +38,37 @@ error[E0106]: missing lifetime specifier
--> $DIR/lifetime-elision-return-type-requires-explicit-lifetime.rs:21:20
|
LL | fn i(_x: isize) -> &isize {
| ^ help: consider giving it an explicit bounded or 'static lifetime: `&'static`
| ^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value with an elided lifetime, but the lifetime cannot be derived from the arguments
help: consider using the `'static` lifetime
|
LL | fn i(_x: isize) -> &'static isize {
| ^^^^^^^^
error[E0106]: missing lifetime specifier
--> $DIR/lifetime-elision-return-type-requires-explicit-lifetime.rs:34:24
|
LL | fn j(_x: StaticStr) -> &isize {
| ^ help: consider giving it an explicit bounded or 'static lifetime: `&'static`
| ^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value with an elided lifetime, but the lifetime cannot be derived from the arguments
help: consider using the `'static` lifetime
|
LL | fn j(_x: StaticStr) -> &'static isize {
| ^^^^^^^^
error[E0106]: missing lifetime specifier
--> $DIR/lifetime-elision-return-type-requires-explicit-lifetime.rs:40:49
|
LL | fn k<'a, T: WithLifetime<'a>>(_x: T::Output) -> &isize {
| ^ help: consider giving it an explicit bounded or 'static lifetime: `&'static`
| ^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value with an elided lifetime, but the lifetime cannot be derived from the arguments
help: consider using the `'a` lifetime
|
LL | fn k<'a, T: WithLifetime<'a>>(_x: T::Output) -> &'a isize {
| ^^^
error: aborting due to 6 previous errors

4
src/test/ui/specialization/defaultimpl/validation.stderr
View file

@ -25,13 +25,13 @@ LL | default impl !Send for Z {}
| default because of this
error[E0750]: negative impls cannot be default impls
--> $DIR/validation.rs:10:14
--> $DIR/validation.rs:10:1
|
LL | default impl !Send for Z {}
| ^^^^^^^ ^
error[E0750]: negative impls cannot be default impls
--> $DIR/validation.rs:14:14
--> $DIR/validation.rs:14:1
|
LL | default impl !Tr for S {}
| ^^^^^^^ ^

65
src/test/ui/suggestions/missing-lifetime-specifier.rs Normal file
View file

@ -0,0 +1,65 @@
#![allow(bare_trait_objects)]
use std::collections::HashMap;
use std::cell::RefCell;
pub union Foo<'t, 'k> {
i: &'t i64,
f: &'k f64,
}
trait Bar<'t, 'k> {}
pub union Qux<'t, 'k, I> {
i: &'t I,
f: &'k I,
}
trait Tar<'t, 'k, I> {}
thread_local! {
static a: RefCell<HashMap<i32, Vec<Vec<Foo>>>> = RefCell::new(HashMap::new());
//~^ ERROR missing lifetime specifier
//~| ERROR missing lifetime specifier
}
thread_local! {
static b: RefCell<HashMap<i32, Vec<Vec<&Bar>>>> = RefCell::new(HashMap::new());
//~^ ERROR missing lifetime specifier
//~| ERROR missing lifetime specifier
//~| ERROR missing lifetime specifier
//~| ERROR missing lifetime specifier
//~| ERROR the lifetime bound for this object type cannot be deduced from context
//~| ERROR the lifetime bound for this object type cannot be deduced from context
}
thread_local! {
static c: RefCell<HashMap<i32, Vec<Vec<Qux<i32>>>>> = RefCell::new(HashMap::new());
//~^ ERROR missing lifetime specifier
//~| ERROR missing lifetime specifier
}
thread_local! {
static d: RefCell<HashMap<i32, Vec<Vec<&Tar<i32>>>>> = RefCell::new(HashMap::new());
//~^ ERROR missing lifetime specifier
//~| ERROR missing lifetime specifier
//~| ERROR missing lifetime specifier
//~| ERROR missing lifetime specifier
//~| ERROR the lifetime bound for this object type cannot be deduced from context
//~| ERROR the lifetime bound for this object type cannot be deduced from context
}
thread_local! {
static e: RefCell<HashMap<i32, Vec<Vec<Qux<'static, i32>>>>> = RefCell::new(HashMap::new());
//~^ ERROR wrong number of lifetime arguments: expected 2, found 1
//~| ERROR wrong number of lifetime arguments: expected 2, found 1
//~| ERROR wrong number of lifetime arguments: expected 2, found 1
//~| ERROR wrong number of lifetime arguments: expected 2, found 1
}
thread_local! {
static f: RefCell<HashMap<i32, Vec<Vec<&Tar<'static, i32>>>>> = RefCell::new(HashMap::new());
//~^ ERROR the lifetime bound for this object type cannot be deduced from context
//~| ERROR the lifetime bound for this object type cannot be deduced from context
//~| ERROR wrong number of lifetime arguments: expected 2, found 1
//~| ERROR wrong number of lifetime arguments: expected 2, found 1
//~| ERROR wrong number of lifetime arguments: expected 2, found 1
//~| ERROR wrong number of lifetime arguments: expected 2, found 1
//~| ERROR missing lifetime specifier
//~| ERROR missing lifetime specifier
}
fn main() {}

256
src/test/ui/suggestions/missing-lifetime-specifier.stderr Normal file
View file

@ -0,0 +1,256 @@
error[E0106]: missing lifetime specifiers
--> $DIR/missing-lifetime-specifier.rs:18:44
|
LL | static a: RefCell<HashMap<i32, Vec<Vec<Foo>>>> = RefCell::new(HashMap::new());
| ^^^ expected 2 lifetime parameters
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime
|
LL | static a: RefCell<HashMap<i32, Vec<Vec<Foo<'static, 'static>>>>> = RefCell::new(HashMap::new());
| ^^^^^^^^^^^^^^^^^^^^^
error[E0106]: missing lifetime specifiers
--> $DIR/missing-lifetime-specifier.rs:18:44
|
LL | static a: RefCell<HashMap<i32, Vec<Vec<Foo>>>> = RefCell::new(HashMap::new());
| ^^^ expected 2 lifetime parameters
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime
|
LL | static a: RefCell<HashMap<i32, Vec<Vec<Foo<'static, 'static>>>>> = RefCell::new(HashMap::new());
| ^^^^^^^^^^^^^^^^^^^^^
error[E0106]: missing lifetime specifier
--> $DIR/missing-lifetime-specifier.rs:23:44
|
LL | static b: RefCell<HashMap<i32, Vec<Vec<&Bar>>>> = RefCell::new(HashMap::new());
| ^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime
|
LL | static b: RefCell<HashMap<i32, Vec<Vec<&'static Bar>>>> = RefCell::new(HashMap::new());
| ^^^^^^^^
error[E0106]: missing lifetime specifiers
--> $DIR/missing-lifetime-specifier.rs:23:45
|
LL | static b: RefCell<HashMap<i32, Vec<Vec<&Bar>>>> = RefCell::new(HashMap::new());
| ^^^ expected 2 lifetime parameters
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime
|
LL | static b: RefCell<HashMap<i32, Vec<Vec<&Bar<'static, 'static>>>>> = RefCell::new(HashMap::new());
| ^^^^^^^^^^^^^^^^^^^^^
error[E0106]: missing lifetime specifier
--> $DIR/missing-lifetime-specifier.rs:23:44
|
LL | static b: RefCell<HashMap<i32, Vec<Vec<&Bar>>>> = RefCell::new(HashMap::new());
| ^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime
|
LL | static b: RefCell<HashMap<i32, Vec<Vec<&'static Bar>>>> = RefCell::new(HashMap::new());
| ^^^^^^^^
error[E0106]: missing lifetime specifiers
--> $DIR/missing-lifetime-specifier.rs:23:45
|
LL | static b: RefCell<HashMap<i32, Vec<Vec<&Bar>>>> = RefCell::new(HashMap::new());
| ^^^ expected 2 lifetime parameters
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime
|
LL | static b: RefCell<HashMap<i32, Vec<Vec<&Bar<'static, 'static>>>>> = RefCell::new(HashMap::new());
| ^^^^^^^^^^^^^^^^^^^^^
error[E0106]: missing lifetime specifiers
--> $DIR/missing-lifetime-specifier.rs:32:48
|
LL | static c: RefCell<HashMap<i32, Vec<Vec<Qux<i32>>>>> = RefCell::new(HashMap::new());
| ^ expected 2 lifetime parameters
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime
|
LL | static c: RefCell<HashMap<i32, Vec<Vec<Qux<'static, 'static, i32>>>>> = RefCell::new(HashMap::new());
| ^^^^^^^^^^^^^^^^^
error[E0106]: missing lifetime specifiers
--> $DIR/missing-lifetime-specifier.rs:32:48
|
LL | static c: RefCell<HashMap<i32, Vec<Vec<Qux<i32>>>>> = RefCell::new(HashMap::new());
| ^ expected 2 lifetime parameters
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime
|
LL | static c: RefCell<HashMap<i32, Vec<Vec<Qux<'static, 'static, i32>>>>> = RefCell::new(HashMap::new());
| ^^^^^^^^^^^^^^^^^
error[E0106]: missing lifetime specifier
--> $DIR/missing-lifetime-specifier.rs:37:44
|
LL | static d: RefCell<HashMap<i32, Vec<Vec<&Tar<i32>>>>> = RefCell::new(HashMap::new());
| ^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime
|
LL | static d: RefCell<HashMap<i32, Vec<Vec<&'static Tar<i32>>>>> = RefCell::new(HashMap::new());
| ^^^^^^^^
error[E0106]: missing lifetime specifiers
--> $DIR/missing-lifetime-specifier.rs:37:49
|
LL | static d: RefCell<HashMap<i32, Vec<Vec<&Tar<i32>>>>> = RefCell::new(HashMap::new());
| ^ expected 2 lifetime parameters
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime
|
LL | static d: RefCell<HashMap<i32, Vec<Vec<&Tar<'static, 'static, i32>>>>> = RefCell::new(HashMap::new());
| ^^^^^^^^^^^^^^^^^
error[E0106]: missing lifetime specifier
--> $DIR/missing-lifetime-specifier.rs:37:44
|
LL | static d: RefCell<HashMap<i32, Vec<Vec<&Tar<i32>>>>> = RefCell::new(HashMap::new());
| ^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime
|
LL | static d: RefCell<HashMap<i32, Vec<Vec<&'static Tar<i32>>>>> = RefCell::new(HashMap::new());
| ^^^^^^^^
error[E0106]: missing lifetime specifiers
--> $DIR/missing-lifetime-specifier.rs:37:49
|
LL | static d: RefCell<HashMap<i32, Vec<Vec<&Tar<i32>>>>> = RefCell::new(HashMap::new());
| ^ expected 2 lifetime parameters
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime
|
LL | static d: RefCell<HashMap<i32, Vec<Vec<&Tar<'static, 'static, i32>>>>> = RefCell::new(HashMap::new());
| ^^^^^^^^^^^^^^^^^
error[E0106]: missing lifetime specifier
--> $DIR/missing-lifetime-specifier.rs:54:44
|
LL | static f: RefCell<HashMap<i32, Vec<Vec<&Tar<'static, i32>>>>> = RefCell::new(HashMap::new());
| ^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime
|
LL | static f: RefCell<HashMap<i32, Vec<Vec<&'static Tar<'static, i32>>>>> = RefCell::new(HashMap::new());
| ^^^^^^^^
error[E0106]: missing lifetime specifier
--> $DIR/missing-lifetime-specifier.rs:54:44
|
LL | static f: RefCell<HashMap<i32, Vec<Vec<&Tar<'static, i32>>>>> = RefCell::new(HashMap::new());
| ^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime
|
LL | static f: RefCell<HashMap<i32, Vec<Vec<&'static Tar<'static, i32>>>>> = RefCell::new(HashMap::new());
| ^^^^^^^^
error[E0228]: the lifetime bound for this object type cannot be deduced from context; please supply an explicit bound
--> $DIR/missing-lifetime-specifier.rs:23:45
|
LL | static b: RefCell<HashMap<i32, Vec<Vec<&Bar>>>> = RefCell::new(HashMap::new());
| ^^^
error[E0228]: the lifetime bound for this object type cannot be deduced from context; please supply an explicit bound
--> $DIR/missing-lifetime-specifier.rs:23:45
|
LL | static b: RefCell<HashMap<i32, Vec<Vec<&Bar>>>> = RefCell::new(HashMap::new());
| ^^^
error[E0228]: the lifetime bound for this object type cannot be deduced from context; please supply an explicit bound
--> $DIR/missing-lifetime-specifier.rs:37:45
|
LL | static d: RefCell<HashMap<i32, Vec<Vec<&Tar<i32>>>>> = RefCell::new(HashMap::new());
| ^^^^^^^^
error[E0228]: the lifetime bound for this object type cannot be deduced from context; please supply an explicit bound
--> $DIR/missing-lifetime-specifier.rs:37:45
|
LL | static d: RefCell<HashMap<i32, Vec<Vec<&Tar<i32>>>>> = RefCell::new(HashMap::new());
| ^^^^^^^^
error[E0107]: wrong number of lifetime arguments: expected 2, found 1
--> $DIR/missing-lifetime-specifier.rs:47:44
|
LL | static e: RefCell<HashMap<i32, Vec<Vec<Qux<'static, i32>>>>> = RefCell::new(HashMap::new());
| ^^^^^^^^^^^^^^^^^ expected 2 lifetime arguments
error[E0107]: wrong number of lifetime arguments: expected 2, found 1
--> $DIR/missing-lifetime-specifier.rs:47:44
|
LL | static e: RefCell<HashMap<i32, Vec<Vec<Qux<'static, i32>>>>> = RefCell::new(HashMap::new());
| ^^^^^^^^^^^^^^^^^ expected 2 lifetime arguments
error[E0107]: wrong number of lifetime arguments: expected 2, found 1
--> $DIR/missing-lifetime-specifier.rs:47:44
|
LL | static e: RefCell<HashMap<i32, Vec<Vec<Qux<'static, i32>>>>> = RefCell::new(HashMap::new());
| ^^^^^^^^^^^^^^^^^ expected 2 lifetime arguments
error[E0107]: wrong number of lifetime arguments: expected 2, found 1
--> $DIR/missing-lifetime-specifier.rs:47:44
|
LL | static e: RefCell<HashMap<i32, Vec<Vec<Qux<'static, i32>>>>> = RefCell::new(HashMap::new());
| ^^^^^^^^^^^^^^^^^ expected 2 lifetime arguments
error[E0107]: wrong number of lifetime arguments: expected 2, found 1
--> $DIR/missing-lifetime-specifier.rs:54:45
|
LL | static f: RefCell<HashMap<i32, Vec<Vec<&Tar<'static, i32>>>>> = RefCell::new(HashMap::new());
| ^^^^^^^^^^^^^^^^^ expected 2 lifetime arguments
error[E0107]: wrong number of lifetime arguments: expected 2, found 1
--> $DIR/missing-lifetime-specifier.rs:54:45
|
LL | static f: RefCell<HashMap<i32, Vec<Vec<&Tar<'static, i32>>>>> = RefCell::new(HashMap::new());
| ^^^^^^^^^^^^^^^^^ expected 2 lifetime arguments
error[E0228]: the lifetime bound for this object type cannot be deduced from context; please supply an explicit bound
--> $DIR/missing-lifetime-specifier.rs:54:45
|
LL | static f: RefCell<HashMap<i32, Vec<Vec<&Tar<'static, i32>>>>> = RefCell::new(HashMap::new());
| ^^^^^^^^^^^^^^^^^
error[E0107]: wrong number of lifetime arguments: expected 2, found 1
--> $DIR/missing-lifetime-specifier.rs:54:45
|
LL | static f: RefCell<HashMap<i32, Vec<Vec<&Tar<'static, i32>>>>> = RefCell::new(HashMap::new());
| ^^^^^^^^^^^^^^^^^ expected 2 lifetime arguments
error[E0228]: the lifetime bound for this object type cannot be deduced from context; please supply an explicit bound
--> $DIR/missing-lifetime-specifier.rs:54:45
|
LL | static f: RefCell<HashMap<i32, Vec<Vec<&Tar<'static, i32>>>>> = RefCell::new(HashMap::new());
| ^^^^^^^^^^^^^^^^^
error[E0107]: wrong number of lifetime arguments: expected 2, found 1
--> $DIR/missing-lifetime-specifier.rs:54:45
|
LL | static f: RefCell<HashMap<i32, Vec<Vec<&Tar<'static, i32>>>>> = RefCell::new(HashMap::new());
| ^^^^^^^^^^^^^^^^^ expected 2 lifetime arguments
error: aborting due to 28 previous errors
Some errors have detailed explanations: E0106, E0107.
For more information about an error, try `rustc --explain E0106`.

19
src/test/ui/suggestions/return-without-lifetime.stderr
View file

@ -2,23 +2,36 @@ error[E0106]: missing lifetime specifier
--> $DIR/return-without-lifetime.rs:2:16
|
LL | struct Foo<'a>(&usize);
| ^ help: consider using the named lifetime: `&'a`
| ^ expected named lifetime parameter
|
help: consider using the `'a` lifetime
|
LL | struct Foo<'a>(&'a usize);
| ^^^
error[E0106]: missing lifetime specifier
--> $DIR/return-without-lifetime.rs:5:34
|
LL | fn func1<'a>(_arg: &'a Thing) -> &() { unimplemented!() }
| --------- ^ help: consider using the named lifetime: `&'a`
| --------- ^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value, but the signature does not say which one of `_arg`'s 2 lifetimes it is borrowed from
help: consider using the `'a` lifetime
|
LL | fn func1<'a>(_arg: &'a Thing) -> &'a () { unimplemented!() }
| ^^^
error[E0106]: missing lifetime specifier
--> $DIR/return-without-lifetime.rs:7:35
|
LL | fn func2<'a>(_arg: &Thing<'a>) -> &() { unimplemented!() }
| ---------- ^ help: consider using the named lifetime: `&'a`
| ---------- ^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value, but the signature does not say which one of `_arg`'s 2 lifetimes it is borrowed from
help: consider using the `'a` lifetime
|
LL | fn func2<'a>(_arg: &Thing<'a>) -> &'a () { unimplemented!() }
| ^^^
error: aborting due to 3 previous errors

2
src/test/ui/traits/negative-impls/negative-default-impls.stderr
View file

@ -1,5 +1,5 @@
error[E0750]: negative impls cannot be default impls
--> $DIR/negative-default-impls.rs:8:14
--> $DIR/negative-default-impls.rs:8:1
|
LL | default impl !MyTrait for u32 {}
| ^^^^^^^ ^

2
src/test/ui/unboxed-closures/unboxed-closure-feature-gate.stderr
View file

@ -2,7 +2,7 @@ error[E0658]: parenthetical notation is only stable when used with `Fn`-family t
--> $DIR/unboxed-closure-feature-gate.rs:13:20
|
LL | let x: Box<dyn Foo(isize)>;
| ^^^
| ^^^^^^^^^^
|
= note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
= help: add `#![feature(unboxed_closures)]` to the crate attributes to enable

4
src/test/ui/unboxed-closures/unboxed-closure-sugar-not-used-on-fn.stderr
View file

@ -2,7 +2,7 @@ error[E0658]: the precise format of `Fn`-family traits' type parameters is subje
--> $DIR/unboxed-closure-sugar-not-used-on-fn.rs:3:17
|
LL | fn bar1(x: &dyn Fn<(), Output=()>) {
| ^^ help: use parenthetical notation instead: `Fn() -> ()`
| ^^^^^^^^^^^^^^^^^ help: use parenthetical notation instead: `Fn() -> ()`
|
= note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
= help: add `#![feature(unboxed_closures)]` to the crate attributes to enable
@ -11,7 +11,7 @@ error[E0658]: the precise format of `Fn`-family traits' type parameters is subje
--> $DIR/unboxed-closure-sugar-not-used-on-fn.rs:7:28
|
LL | fn bar2<T>(x: &T) where T: Fn<()> {
| ^^ help: use parenthetical notation instead: `Fn() -> ()`
| ^^^^^^ help: use parenthetical notation instead: `Fn() -> ()`
|
= note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
= help: add `#![feature(unboxed_closures)]` to the crate attributes to enable

2
src/test/ui/unboxed-closures/unboxed-closure-sugar-region.stderr
View file

@ -2,7 +2,7 @@ error[E0107]: wrong number of lifetime arguments: expected 1, found 0
--> $DIR/unboxed-closure-sugar-region.rs:30:51
|
LL | fn test2(x: &dyn Foo<(isize,),Output=()>, y: &dyn Foo(isize)) {
| ^^^ expected 1 lifetime argument
| ^^^^^^^^^^ expected 1 lifetime argument
error: aborting due to previous error

2
src/test/ui/unboxed-closures/unboxed-closure-sugar-wrong-number-number-type-parameters-3.stderr
View file

@ -2,7 +2,7 @@ error[E0107]: wrong number of type arguments: expected 3, found 1
--> $DIR/unboxed-closure-sugar-wrong-number-number-type-parameters-3.rs:5:16
|
LL | fn foo(_: &dyn Three())
| ^^^^^ expected 3 type arguments
| ^^^^^^^ expected 3 type arguments
error[E0220]: associated type `Output` not found for `Three<(), [type error], [type error]>`
--> $DIR/unboxed-closure-sugar-wrong-number-number-type-parameters-3.rs:5:16

13
src/test/ui/underscore-lifetime/underscore-lifetime-binders.stderr
View file

@ -14,15 +14,24 @@ error[E0106]: missing lifetime specifier
--> $DIR/underscore-lifetime-binders.rs:2:17
|
LL | struct Baz<'a>(&'_ &'a u8);
| ^^ help: consider using the named lifetime: `'a`
| ^^ expected named lifetime parameter
|
help: consider using the `'a` lifetime
|
LL | struct Baz<'a>(&'a &'a u8);
| ^^
error[E0106]: missing lifetime specifier
--> $DIR/underscore-lifetime-binders.rs:10:33
|
LL | fn meh() -> Box<dyn for<'_> Meh<'_>>
| ^^ help: consider giving it a 'static lifetime: `'static`
| ^^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime
|
LL | fn meh() -> Box<dyn for<'_> Meh<'static>>
| ^^^^^^^
error[E0106]: missing lifetime specifier
--> $DIR/underscore-lifetime-binders.rs:16:35

2
src/test/ui/unspecified-self-in-trait-ref.stderr
View file

@ -31,7 +31,7 @@ LL | | }
| |_- type parameter `A` must be specified for this
...
LL | let e = Bar::<usize>::lol();
| ^^^ missing reference to `A`
| ^^^^^^^^^^^^^^^^^ missing reference to `A`
|
= note: because of the default `Self` reference, type parameters must be specified on object types