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rust/tests/ui/suggestions/issue-84973-blacklist.stderr

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Implement jackh726's suggestions
2021-05-17 20:58:09 +00:00
error[E0277]: the trait bound `String: Copy` is not satisfied
--> $DIR/issue-84973-blacklist.rs:15:12
|
LL | f_copy("".to_string());
Point at call span that introduced obligation for the arg
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| ------ ^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `String`
| |
| required by a bound introduced by this call
Use note to point at bound introducing requirement
2021-07-31 16:26:55 +00:00
|
note: required by a bound in `f_copy`
--> $DIR/issue-84973-blacklist.rs:6:14
|
LL | fn f_copy<T: Copy>(t: T) {}
| ^^^^ required by this bound in `f_copy`
Detect when method call on argument could be removed to fulfill failed trait bound When encountering ```rust struct Foo; struct Bar; impl From<Bar> for Foo { fn from(_: Bar) -> Self { Foo } } fn qux(_: impl From<Bar>) {} fn main() { qux(Bar.into()); } ``` Suggest removing `.into()`: ``` error[E0283]: type annotations needed --> f100.rs:8:13 | 8 | qux(Bar.into()); | --- ^^^^ | | | required by a bound introduced by this call | = note: cannot satisfy `_: From<Bar>` note: required by a bound in `qux` --> f100.rs:6:16 | 6 | fn qux(_: impl From<Bar>) {} | ^^^^^^^^^ required by this bound in `qux` help: try using a fully qualified path to specify the expected types | 8 | qux(<Bar as Into<T>>::into(Bar)); | +++++++++++++++++++++++ ~ help: consider removing this method call, as the receiver has type `Bar` and `Bar: From<Bar>` can be fulfilled | 8 - qux(Bar.into()); 8 + qux(Bar); | ``` Fix #71252
2024-02-14 17:48:40 +00:00
help: consider removing this method call, as the receiver has type `&'static str` and `&'static str: Copy` trivially holds
|
LL - f_copy("".to_string());
LL + f_copy("");
|
Implement jackh726's suggestions
2021-05-17 20:58:09 +00:00
error[E0277]: the trait bound `S: Clone` is not satisfied
--> $DIR/issue-84973-blacklist.rs:16:13
|
LL | f_clone(S);
Point at call span that introduced obligation for the arg
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| ------- ^ the trait `Clone` is not implemented for `S`
| |
| required by a bound introduced by this call
Use note to point at bound introducing requirement
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|
note: required by a bound in `f_clone`
--> $DIR/issue-84973-blacklist.rs:7:15
|
LL | fn f_clone<T: Clone>(t: T) {}
| ^^^^^ required by this bound in `f_clone`
Suggest derivable trait on E0277
2022-03-31 14:58:45 +00:00
help: consider annotating `S` with `#[derive(Clone)]`
|
Tweak output for 'add line' suggestion
2023-03-18 02:18:39 +00:00
LL + #[derive(Clone)]
LL | struct S;
Suggest derivable trait on E0277
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|
Implement jackh726's suggestions
2021-05-17 20:58:09 +00:00
Error on using `yield` without also using `#[coroutine]` on the closure And suggest adding the `#[coroutine]` to the closure
2024-04-11 13:15:34 +00:00
error[E0277]: `{static coroutine@$DIR/issue-84973-blacklist.rs:17:26: 17:35}` cannot be unpinned
--> $DIR/issue-84973-blacklist.rs:17:26
Implement jackh726's suggestions
2021-05-17 20:58:09 +00:00
|
Error on using `yield` without also using `#[coroutine]` on the closure And suggest adding the `#[coroutine]` to the closure
2024-04-11 13:15:34 +00:00
LL | f_unpin(#[coroutine] static || { yield; });
| ------- ^^^^^^^^^^^^^^^^^^^^ the trait `Unpin` is not implemented for `{static coroutine@$DIR/issue-84973-blacklist.rs:17:26: 17:35}`
Rework point-at-arg
2022-08-16 06:27:22 +00:00
| |
| required by a bound introduced by this call
Implement jackh726's suggestions
2021-05-17 20:58:09 +00:00
|
Added diagnostic for pin! macro in addition to Box::pin if Unpin isn't implemented
2023-04-12 22:03:11 +00:00
= note: consider using the `pin!` macro
consider using `Box::pin` if you need to access the pinned value outside of the current scope
Use note to point at bound introducing requirement
2021-07-31 16:26:55 +00:00
note: required by a bound in `f_unpin`
--> $DIR/issue-84973-blacklist.rs:8:15
|
LL | fn f_unpin<T: Unpin>(t: T) {}
| ^^^^^ required by this bound in `f_unpin`
Implement jackh726's suggestions
2021-05-17 20:58:09 +00:00
error[E0277]: the size for values of type `dyn Fn()` cannot be known at compilation time
--> $DIR/issue-84973-blacklist.rs:22:13
|
LL | f_sized(*ref_cl);
Point at call span that introduced obligation for the arg
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| ------- ^^^^^^^ doesn't have a size known at compile-time
| |
| required by a bound introduced by this call
Implement jackh726's suggestions
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|
= help: the trait `Sized` is not implemented for `dyn Fn()`
Use note to point at bound introducing requirement
2021-07-31 16:26:55 +00:00
note: required by a bound in `f_sized`
On E0277 be clearer about implicit `Sized` bounds on type params and assoc types ``` error[E0277]: the size for values of type `[i32]` cannot be known at compilation time --> f100.rs:2:33 | 2 | let _ = std::mem::size_of::<[i32]>(); | ^^^^^ doesn't have a size known at compile-time | = help: the trait `Sized` is not implemented for `[i32]` note: required by an implicit `Sized` bound in `std::mem::size_of` --> /home/gh-estebank/rust/library/core/src/mem/mod.rs:312:22 | 312 | pub const fn size_of<T>() -> usize { | ^ required by the implicit `Sized` requirement on this bound in `size_of` ``` Fix #120178.
2024-01-24 21:29:15 +00:00
--> $DIR/issue-84973-blacklist.rs:9:15
Use note to point at bound introducing requirement
2021-07-31 16:26:55 +00:00
|
LL | fn f_sized<T: Sized>(t: T) {}
On E0277 be clearer about implicit `Sized` bounds on type params and assoc types ``` error[E0277]: the size for values of type `[i32]` cannot be known at compilation time --> f100.rs:2:33 | 2 | let _ = std::mem::size_of::<[i32]>(); | ^^^^^ doesn't have a size known at compile-time | = help: the trait `Sized` is not implemented for `[i32]` note: required by an implicit `Sized` bound in `std::mem::size_of` --> /home/gh-estebank/rust/library/core/src/mem/mod.rs:312:22 | 312 | pub const fn size_of<T>() -> usize { | ^ required by the implicit `Sized` requirement on this bound in `size_of` ``` Fix #120178.
2024-01-24 21:29:15 +00:00
| ^^^^^ required by this bound in `f_sized`
Implement jackh726's suggestions
2021-05-17 20:58:09 +00:00
error[E0277]: `Rc<{integer}>` cannot be sent between threads safely
Point at argument when evaluating `Path`'s bounds When evaluating an `ExprKind::Call`, we first have to `check_expr` on it's callee. When this one is a `ExprKind::Path`, we had to evaluate the bounds introduced for its arguments, but by the time we evaluated them we no longer had access to the argument spans. Now we special case this so that we can point at the right place on unsatisfied bounds. This also allows the E0277 deduplication to kick in correctly, so we now emit fewer errors.
2021-09-14 10:52:36 +00:00
--> $DIR/issue-84973-blacklist.rs:27:12
Implement jackh726's suggestions
2021-05-17 20:58:09 +00:00
|
LL | f_send(rc);
Point at call span that introduced obligation for the arg
2021-09-07 11:30:53 +00:00
| ------ ^^ `Rc<{integer}>` cannot be sent between threads safely
| |
| required by a bound introduced by this call
Implement jackh726's suggestions
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|
= help: the trait `Send` is not implemented for `Rc<{integer}>`
Use note to point at bound introducing requirement
2021-07-31 16:26:55 +00:00
note: required by a bound in `f_send`
--> $DIR/issue-84973-blacklist.rs:10:14
|
LL | fn f_send<T: Send>(t: T) {}
| ^^^^ required by this bound in `f_send`
Implement jackh726's suggestions
2021-05-17 20:58:09 +00:00
Point at argument when evaluating `Path`'s bounds When evaluating an `ExprKind::Call`, we first have to `check_expr` on it's callee. When this one is a `ExprKind::Path`, we had to evaluate the bounds introduced for its arguments, but by the time we evaluated them we no longer had access to the argument spans. Now we special case this so that we can point at the right place on unsatisfied bounds. This also allows the E0277 deduplication to kick in correctly, so we now emit fewer errors.
2021-09-14 10:52:36 +00:00
error: aborting due to 5 previous errors
Implement jackh726's suggestions
2021-05-17 20:58:09 +00:00
For more information about this error, try `rustc --explain E0277`.
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