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Avoid output dependency on std spans

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This commit is contained in:
Esteban Küber 2019-12-13 11:37:31 -08:00
parent 8d316a5a67
commit 83c5b4ec40
4 changed files with 60 additions and 67 deletions
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15
src/test/ui/issues/issue-21950.rs
View file

@ -1,8 +1,13 @@
use std::ops::Add;
trait Add<Rhs=Self> {
type Output;
}
impl Add for i32 {
type Output = i32;
}
fn main() {
let x = &10 as
&dyn Add;
//~^ ERROR E0393
//~| ERROR E0191
let x = &10 as &dyn Add;
//~^ ERROR E0393
//~| ERROR E0191
}

27
src/test/ui/issues/issue-21950.stderr
View file

@ -1,27 +1,24 @@
error[E0393]: the type parameter `Rhs` must be explicitly specified
--> $DIR/issue-21950.rs:5:18
--> $DIR/issue-21950.rs:10:25
|
LL | &dyn Add;
| ^^^ help: set the type parameter to the desired type: `Add<Rhs>`
|
::: $SRC_DIR/libcore/ops/arith.rs:LL:COL
|
LL | / pub trait Add<Rhs = Self> {
LL | | /// The resulting type after applying the `+` operator.
LL | | #[stable(feature = "rust1", since = "1.0.0")]
LL | / trait Add<Rhs=Self> {
LL | | type Output;
... |
LL | | fn add(self, rhs: Rhs) -> Self::Output;
LL | | }
| |_- type parameter `Rhs` must be specified for this
...
LL | let x = &10 as &dyn Add;
| ^^^ help: set the type parameter to the desired type: `Add<Rhs>`
|
= note: because of the default `Self` reference, type parameters must be specified on object types
error[E0191]: the value of the associated type `Output` (from trait `std::ops::Add`) must be specified
--> $DIR/issue-21950.rs:5:18
error[E0191]: the value of the associated type `Output` (from trait `Add`) must be specified
--> $DIR/issue-21950.rs:10:25
|
LL | &dyn Add;
| ^^^ help: specify the associated type: `Add<Output = Type>`
LL | type Output;
| ------------ `Output` defined here
...
LL | let x = &10 as &dyn Add;
| ^^^ help: specify the associated type: `Add<Output = Type>`
error: aborting due to 2 previous errors

19
src/test/ui/issues/issue-22560.rs
View file

@ -1,10 +1,15 @@
use std::ops::{Add, Sub};
trait Add<Rhs=Self> {
type Output;
}
type Test = dyn Add +
//~^ ERROR E0393
//~| ERROR E0191
Sub;
//~^ ERROR E0393
//~| ERROR E0225
trait Sub<Rhs=Self> {
type Output;
}
type Test = dyn Add + Sub;
//~^ ERROR E0393
//~| ERROR E0191
//~| ERROR E0393
//~| ERROR E0225
fn main() { }

66
src/test/ui/issues/issue-22560.stderr
View file

@ -1,65 +1,51 @@
error[E0393]: the type parameter `Rhs` must be explicitly specified
--> $DIR/issue-22560.rs:6:13
--> $DIR/issue-22560.rs:9:23
|
LL | Sub;
| ^^^ help: set the type parameter to the desired type: `Sub<Rhs>`
|
::: $SRC_DIR/libcore/ops/arith.rs:LL:COL
|
LL | / pub trait Sub<Rhs = Self> {
LL | | /// The resulting type after applying the `-` operator.
LL | | #[stable(feature = "rust1", since = "1.0.0")]
LL | / trait Sub<Rhs=Self> {
LL | | type Output;
... |
LL | | fn sub(self, rhs: Rhs) -> Self::Output;
LL | | }
| |_- type parameter `Rhs` must be specified for this
LL |
LL | type Test = dyn Add + Sub;
| ^^^ help: set the type parameter to the desired type: `Sub<Rhs>`
|
= note: because of the default `Self` reference, type parameters must be specified on object types
error[E0393]: the type parameter `Rhs` must be explicitly specified
--> $DIR/issue-22560.rs:3:17
--> $DIR/issue-22560.rs:9:17
|
LL | type Test = dyn Add +
| ^^^ help: set the type parameter to the desired type: `Add<Rhs>`
|
::: $SRC_DIR/libcore/ops/arith.rs:LL:COL
|
LL | / pub trait Add<Rhs = Self> {
LL | | /// The resulting type after applying the `+` operator.
LL | | #[stable(feature = "rust1", since = "1.0.0")]
LL | / trait Add<Rhs=Self> {
LL | | type Output;
... |
LL | | fn add(self, rhs: Rhs) -> Self::Output;
LL | | }
| |_- type parameter `Rhs` must be specified for this
...
LL | type Test = dyn Add + Sub;
| ^^^ help: set the type parameter to the desired type: `Add<Rhs>`
|
= note: because of the default `Self` reference, type parameters must be specified on object types
error[E0225]: only auto traits can be used as additional traits in a trait object
--> $DIR/issue-22560.rs:6:13
--> $DIR/issue-22560.rs:9:23
|
LL | type Test = dyn Add +
| ---
| |
LL | type Test = dyn Add + Sub;
| --- ^^^
| | |
| | additional non-auto trait
| | trait alias used in trait object type (additional use)
| first non-auto trait
| trait alias used in trait object type (first use)
...
LL | Sub;
| ^^^
| |
| additional non-auto trait
| trait alias used in trait object type (additional use)
error[E0191]: the value of the associated types `Output` (from trait `std::ops::Add`), `Output` (from trait `std::ops::Sub`) must be specified
--> $DIR/issue-22560.rs:3:13
error[E0191]: the value of the associated types `Output` (from trait `Add`), `Output` (from trait `Sub`) must be specified
--> $DIR/issue-22560.rs:9:13
|
LL | type Test = dyn Add +
| _____________^
LL | |
LL | |
LL | | Sub;
| |_______________^ associated types `Output`, `Output` must be specified
LL | type Output;
| ------------ `Output` defined here
...
LL | type Output;
| ------------ `Output` defined here
...
LL | type Test = dyn Add + Sub;
| ^^^^^^^^^^^^^ associated types `Output`, `Output` must be specified
error: aborting due to 4 previous errors