user0/rust
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Point at impl blocks when they introduce unmet obligations

Browse source 
Group obligations by `impl` block that introduced them.
This commit is contained in:
Esteban Kuber 2021-10-13 14:28:28 +00:00
parent 8f433adf75
commit 9fa165d11b
9 changed files with 184 additions and 59 deletions
Download patch file Download diff file Expand all files Collapse all files

10
src/test/ui/derives/derive-assoc-type-not-impl.stderr
View file

@ -13,12 +13,16 @@ LL | struct NotClone;
LL | Bar::<NotClone> { x: 1 }.clone();
| ^^^^^ method cannot be called on `Bar<NotClone>` due to unsatisfied trait bounds
|
= note: the following trait bounds were not satisfied:
`NotClone: Clone`
which is required by `Bar<NotClone>: Clone`
note: the following trait bounds were not satisfied because of the requirements of the implementation of `Clone` for `_`:
`NotClone: Clone`
--> $DIR/derive-assoc-type-not-impl.rs:6:10
|
LL | #[derive(Clone)]
| ^^^^^
= help: items from traits can only be used if the trait is implemented and in scope
= note: the following trait defines an item `clone`, perhaps you need to implement it:
candidate #1: `Clone`
= note: this error originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
help: consider annotating `NotClone` with `#[derive(Clone)]`
|
LL | #[derive(Clone)]

2
src/test/ui/generic-associated-types/method-unsatified-assoc-type-predicate.rs
View file

@ -12,6 +12,7 @@ trait M {
}
impl<T: X<Y<i32> = i32>> M for T {}
//~^ NOTE the following trait bounds were not satisfied
struct S;
//~^ NOTE method `f` not found for this
@ -26,7 +27,6 @@ fn f(a: S) {
a.f();
//~^ ERROR the method `f` exists for struct `S`, but its trait bounds were not satisfied
//~| NOTE method cannot be called on `S` due to unsatisfied trait bounds
//~| NOTE the following trait bounds were not satisfied:
}
fn main() {}

11
src/test/ui/generic-associated-types/method-unsatified-assoc-type-predicate.stderr
View file

@ -1,5 +1,5 @@
error[E0599]: the method `f` exists for struct `S`, but its trait bounds were not satisfied
--> $DIR/method-unsatified-assoc-type-predicate.rs:26:7
--> $DIR/method-unsatified-assoc-type-predicate.rs:27:7
|
LL | struct S;
| ---------
@ -11,9 +11,12 @@ LL | struct S;
LL | a.f();
| ^ method cannot be called on `S` due to unsatisfied trait bounds
|
= note: the following trait bounds were not satisfied:
`<S as X>::Y<i32> = i32`
which is required by `S: M`
note: the following trait bounds were not satisfied because of the requirements of the implementation of `M` for `_`:
`<S as X>::Y<i32> = i32`
--> $DIR/method-unsatified-assoc-type-predicate.rs:14:26
|
LL | impl<T: X<Y<i32> = i32>> M for T {}
| ^ ^
error: aborting due to previous error

30
src/test/ui/hrtb/issue-30786.migrate.stderr
View file

@ -10,13 +10,14 @@ LL | pub struct Map<S, F> {
LL | let filter = map.filterx(|x: &_| true);
| ^^^^^^^ method cannot be called on `Map<Repeat, [closure@$DIR/issue-30786.rs:127:27: 127:36]>` due to unsatisfied trait bounds
|
= note: the following trait bounds were not satisfied:
`&'a mut Map<Repeat, [closure@$DIR/issue-30786.rs:127:27: 127:36]>: Stream`
which is required by `Map<Repeat, [closure@$DIR/issue-30786.rs:127:27: 127:36]>: StreamExt`
`&'a mut &Map<Repeat, [closure@$DIR/issue-30786.rs:127:27: 127:36]>: Stream`
which is required by `&Map<Repeat, [closure@$DIR/issue-30786.rs:127:27: 127:36]>: StreamExt`
`&'a mut &mut Map<Repeat, [closure@$DIR/issue-30786.rs:127:27: 127:36]>: Stream`
which is required by `&mut Map<Repeat, [closure@$DIR/issue-30786.rs:127:27: 127:36]>: StreamExt`
note: the following trait bounds were not satisfied because of the requirements of the implementation of `StreamExt` for `_`:
`&'a mut Map<Repeat, [closure@$DIR/issue-30786.rs:127:27: 127:36]>: Stream`
`&'a mut &Map<Repeat, [closure@$DIR/issue-30786.rs:127:27: 127:36]>: Stream`
`&'a mut &mut Map<Repeat, [closure@$DIR/issue-30786.rs:127:27: 127:36]>: Stream`
--> $DIR/issue-30786.rs:106:9
|
LL | impl<T> StreamExt for T where for<'a> &'a mut T: Stream {}
| ^^^^^^^^^ ^
error[E0599]: the method `countx` exists for struct `Filter<Map<Repeat, for<'r> fn(&'r u64) -> &'r u64 {identity::<u64>}>, [closure@$DIR/issue-30786.rs:140:30: 140:42]>`, but its trait bounds were not satisfied
--> $DIR/issue-30786.rs:141:24
@ -30,13 +31,14 @@ LL | pub struct Filter<S, F> {
LL | let count = filter.countx();
| ^^^^^^ method cannot be called on `Filter<Map<Repeat, for<'r> fn(&'r u64) -> &'r u64 {identity::<u64>}>, [closure@$DIR/issue-30786.rs:140:30: 140:42]>` due to unsatisfied trait bounds
|
= note: the following trait bounds were not satisfied:
`&'a mut Filter<Map<Repeat, for<'r> fn(&'r u64) -> &'r u64 {identity::<u64>}>, [closure@$DIR/issue-30786.rs:140:30: 140:42]>: Stream`
which is required by `Filter<Map<Repeat, for<'r> fn(&'r u64) -> &'r u64 {identity::<u64>}>, [closure@$DIR/issue-30786.rs:140:30: 140:42]>: StreamExt`
`&'a mut &Filter<Map<Repeat, for<'r> fn(&'r u64) -> &'r u64 {identity::<u64>}>, [closure@$DIR/issue-30786.rs:140:30: 140:42]>: Stream`
which is required by `&Filter<Map<Repeat, for<'r> fn(&'r u64) -> &'r u64 {identity::<u64>}>, [closure@$DIR/issue-30786.rs:140:30: 140:42]>: StreamExt`
`&'a mut &mut Filter<Map<Repeat, for<'r> fn(&'r u64) -> &'r u64 {identity::<u64>}>, [closure@$DIR/issue-30786.rs:140:30: 140:42]>: Stream`
which is required by `&mut Filter<Map<Repeat, for<'r> fn(&'r u64) -> &'r u64 {identity::<u64>}>, [closure@$DIR/issue-30786.rs:140:30: 140:42]>: StreamExt`
note: the following trait bounds were not satisfied because of the requirements of the implementation of `StreamExt` for `_`:
`&'a mut Filter<Map<Repeat, for<'r> fn(&'r u64) -> &'r u64 {identity::<u64>}>, [closure@$DIR/issue-30786.rs:140:30: 140:42]>: Stream`
`&'a mut &Filter<Map<Repeat, for<'r> fn(&'r u64) -> &'r u64 {identity::<u64>}>, [closure@$DIR/issue-30786.rs:140:30: 140:42]>: Stream`
`&'a mut &mut Filter<Map<Repeat, for<'r> fn(&'r u64) -> &'r u64 {identity::<u64>}>, [closure@$DIR/issue-30786.rs:140:30: 140:42]>: Stream`
--> $DIR/issue-30786.rs:106:9
|
LL | impl<T> StreamExt for T where for<'a> &'a mut T: Stream {}
| ^^^^^^^^^ ^
error: aborting due to 2 previous errors

30
src/test/ui/hrtb/issue-30786.nll.stderr
View file

@ -10,13 +10,14 @@ LL | pub struct Map<S, F> {
LL | let filter = map.filterx(|x: &_| true);
| ^^^^^^^ method cannot be called on `Map<Repeat, [closure@$DIR/issue-30786.rs:127:27: 127:36]>` due to unsatisfied trait bounds
|
= note: the following trait bounds were not satisfied:
`&'a mut Map<Repeat, [closure@$DIR/issue-30786.rs:127:27: 127:36]>: Stream`
which is required by `Map<Repeat, [closure@$DIR/issue-30786.rs:127:27: 127:36]>: StreamExt`
`&'a mut &Map<Repeat, [closure@$DIR/issue-30786.rs:127:27: 127:36]>: Stream`
which is required by `&Map<Repeat, [closure@$DIR/issue-30786.rs:127:27: 127:36]>: StreamExt`
`&'a mut &mut Map<Repeat, [closure@$DIR/issue-30786.rs:127:27: 127:36]>: Stream`
which is required by `&mut Map<Repeat, [closure@$DIR/issue-30786.rs:127:27: 127:36]>: StreamExt`
note: the following trait bounds were not satisfied because of the requirements of the implementation of `StreamExt` for `_`:
`&'a mut Map<Repeat, [closure@$DIR/issue-30786.rs:127:27: 127:36]>: Stream`
`&'a mut &Map<Repeat, [closure@$DIR/issue-30786.rs:127:27: 127:36]>: Stream`
`&'a mut &mut Map<Repeat, [closure@$DIR/issue-30786.rs:127:27: 127:36]>: Stream`
--> $DIR/issue-30786.rs:106:9
|
LL | impl<T> StreamExt for T where for<'a> &'a mut T: Stream {}
| ^^^^^^^^^ ^
error[E0599]: the method `countx` exists for struct `Filter<Map<Repeat, for<'r> fn(&'r u64) -> &'r u64 {identity::<u64>}>, [closure@$DIR/issue-30786.rs:140:30: 140:42]>`, but its trait bounds were not satisfied
--> $DIR/issue-30786.rs:141:24
@ -30,13 +31,14 @@ LL | pub struct Filter<S, F> {
LL | let count = filter.countx();
| ^^^^^^ method cannot be called on `Filter<Map<Repeat, for<'r> fn(&'r u64) -> &'r u64 {identity::<u64>}>, [closure@$DIR/issue-30786.rs:140:30: 140:42]>` due to unsatisfied trait bounds
|
= note: the following trait bounds were not satisfied:
`&'a mut Filter<Map<Repeat, for<'r> fn(&'r u64) -> &'r u64 {identity::<u64>}>, [closure@$DIR/issue-30786.rs:140:30: 140:42]>: Stream`
which is required by `Filter<Map<Repeat, for<'r> fn(&'r u64) -> &'r u64 {identity::<u64>}>, [closure@$DIR/issue-30786.rs:140:30: 140:42]>: StreamExt`
`&'a mut &Filter<Map<Repeat, for<'r> fn(&'r u64) -> &'r u64 {identity::<u64>}>, [closure@$DIR/issue-30786.rs:140:30: 140:42]>: Stream`
which is required by `&Filter<Map<Repeat, for<'r> fn(&'r u64) -> &'r u64 {identity::<u64>}>, [closure@$DIR/issue-30786.rs:140:30: 140:42]>: StreamExt`
`&'a mut &mut Filter<Map<Repeat, for<'r> fn(&'r u64) -> &'r u64 {identity::<u64>}>, [closure@$DIR/issue-30786.rs:140:30: 140:42]>: Stream`
which is required by `&mut Filter<Map<Repeat, for<'r> fn(&'r u64) -> &'r u64 {identity::<u64>}>, [closure@$DIR/issue-30786.rs:140:30: 140:42]>: StreamExt`
note: the following trait bounds were not satisfied because of the requirements of the implementation of `StreamExt` for `_`:
`&'a mut Filter<Map<Repeat, for<'r> fn(&'r u64) -> &'r u64 {identity::<u64>}>, [closure@$DIR/issue-30786.rs:140:30: 140:42]>: Stream`
`&'a mut &Filter<Map<Repeat, for<'r> fn(&'r u64) -> &'r u64 {identity::<u64>}>, [closure@$DIR/issue-30786.rs:140:30: 140:42]>: Stream`
`&'a mut &mut Filter<Map<Repeat, for<'r> fn(&'r u64) -> &'r u64 {identity::<u64>}>, [closure@$DIR/issue-30786.rs:140:30: 140:42]>: Stream`
--> $DIR/issue-30786.rs:106:9
|
LL | impl<T> StreamExt for T where for<'a> &'a mut T: Stream {}
| ^^^^^^^^^ ^
error: aborting due to 2 previous errors

8
src/test/ui/specialization/defaultimpl/specialization-trait-not-implemented.stderr
View file

@ -20,8 +20,12 @@ LL | struct MyStruct;
LL | println!("{}", MyStruct.foo_one());
| ^^^^^^^ method cannot be called on `MyStruct` due to unsatisfied trait bounds
|
= note: the following trait bounds were not satisfied:
`MyStruct: Foo`
note: the following trait bounds were not satisfied because of the requirements of the implementation of `Foo` for `_`:
`MyStruct: Foo`
--> $DIR/specialization-trait-not-implemented.rs:14:17
|
LL | default impl<T> Foo for T {
| ^^^ ^
note: the following trait must be implemented
--> $DIR/specialization-trait-not-implemented.rs:7:1
|