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|
error[E0282]: type annotations needed
--> $DIR/duplicate-bound-err.rs:9:5
|
LL | iter::empty()
| ^^^^^^^^^^^ cannot infer type of the type parameter `T` declared on the function `empty`
|
help: consider specifying the generic argument
|
LL | iter::empty::<T>()
| +++++
error[E0282]: type annotations needed
--> $DIR/duplicate-bound-err.rs:13:5
|
LL | iter::empty()
| ^^^^^^^^^^^ cannot infer type of the type parameter `T` declared on the function `empty`
|
help: consider specifying the generic argument
|
LL | iter::empty::<T>()
| +++++
error[E0282]: type annotations needed
--> $DIR/duplicate-bound-err.rs:17:5
|
LL | iter::empty()
| ^^^^^^^^^^^ cannot infer type of the type parameter `T` declared on the function `empty`
|
help: consider specifying the generic argument
|
LL | iter::empty::<T>()
| +++++
error: unconstrained opaque type
--> $DIR/duplicate-bound-err.rs:21:51
|
LL | type Tait1<T: Iterator<Item: Copy, Item: Send>> = impl Copy;
| ^^^^^^^^^
|
= note: `Tait1` must be used in combination with a concrete type within the same crate
error: unconstrained opaque type
--> $DIR/duplicate-bound-err.rs:23:51
|
LL | type Tait2<T: Iterator<Item: Copy, Item: Copy>> = impl Copy;
| ^^^^^^^^^
|
= note: `Tait2` must be used in combination with a concrete type within the same crate
error: unconstrained opaque type
--> $DIR/duplicate-bound-err.rs:25:57
|
LL | type Tait3<T: Iterator<Item: 'static, Item: 'static>> = impl Copy;
| ^^^^^^^^^
|
= note: `Tait3` must be used in combination with a concrete type within the same crate
error: unconstrained opaque type
--> $DIR/duplicate-bound-err.rs:28:14
|
LL | type Tait4 = impl Iterator<Item: Copy, Item: Send>;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: `Tait4` must be used in combination with a concrete type within the same crate
error: unconstrained opaque type
--> $DIR/duplicate-bound-err.rs:30:14
|
LL | type Tait5 = impl Iterator<Item: Copy, Item: Copy>;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: `Tait5` must be used in combination with a concrete type within the same crate
error: unconstrained opaque type
--> $DIR/duplicate-bound-err.rs:32:14
|
LL | type Tait6 = impl Iterator<Item: 'static, Item: 'static>;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: `Tait6` must be used in combination with a concrete type within the same crate
error[E0277]: `*const ()` cannot be sent between threads safely
--> $DIR/duplicate-bound-err.rs:35:18
|
LL | fn mismatch() -> impl Iterator<Item: Copy, Item: Send> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `*const ()` cannot be sent between threads safely
LL |
LL | iter::empty::<*const ()>()
| -------------------------- return type was inferred to be `std::iter::Empty<*const ()>` here
|
= help: the trait `Send` is not implemented for `*const ()`
error[E0277]: the trait bound `String: Copy` is not satisfied
--> $DIR/duplicate-bound-err.rs:40:20
|
LL | fn mismatch_2() -> impl Iterator<Item: Copy, Item: Send> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `String`
LL |
LL | iter::empty::<String>()
| ----------------------- return type was inferred to be `std::iter::Empty<String>` here
error[E0271]: expected `IntoIter<u32, 1>` to be an iterator that yields `i32`, but it yields `u32`
--> $DIR/duplicate-bound-err.rs:100:17
|
LL | fn foo() -> impl Iterator<Item = i32, Item = u32> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `i32`, found `u32`
...
LL | [2u32].into_iter()
| ------------------ return type was inferred to be `std::array::IntoIter<u32, 1>` here
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate-bound-err.rs:77:42
|
LL | type MustFail = dyn Iterator<Item = i32, Item = u32>;
| ---------- ^^^^^^^^^^ re-bound here
| |
| `Item` bound here first
error: conflicting associated type bounds for `Item`
--> $DIR/duplicate-bound-err.rs:77:17
|
LL | type MustFail = dyn Iterator<Item = i32, Item = u32>;
| ^^^^^^^^^^^^^----------^^----------^
| | |
| | `Item` is specified to be `u32` here
| `Item` is specified to be `i32` here
error[E0719]: the value of the associated type `ASSOC` in trait `Trait2` is already specified
--> $DIR/duplicate-bound-err.rs:85:43
|
LL | type MustFail2 = dyn Trait2<ASSOC = 3u32, ASSOC = 4u32>;
| ------------ ^^^^^^^^^^^^ re-bound here
| |
| `ASSOC` bound here first
error: conflicting associated type bounds for `ASSOC`
--> $DIR/duplicate-bound-err.rs:85:18
|
LL | type MustFail2 = dyn Trait2<ASSOC = 3u32, ASSOC = 4u32>;
| ^^^^^^^^^^^------------^^------------^
| | |
| | `ASSOC` is specified to be `4` here
| `ASSOC` is specified to be `3` here
error[E0719]: the value of the associated type `Item` in trait `Iterator` is already specified
--> $DIR/duplicate-bound-err.rs:89:43
|
LL | type MustFail3 = dyn Iterator<Item = i32, Item = i32>;
| ---------- ^^^^^^^^^^ re-bound here
| |
| `Item` bound here first
error[E0719]: the value of the associated type `ASSOC` in trait `Trait2` is already specified
--> $DIR/duplicate-bound-err.rs:92:43
|
LL | type MustFail4 = dyn Trait2<ASSOC = 3u32, ASSOC = 3u32>;
| ------------ ^^^^^^^^^^^^ re-bound here
| |
| `ASSOC` bound here first
error[E0271]: expected `impl Iterator<Item = u32>` to be an iterator that yields `i32`, but it yields `u32`
--> $DIR/duplicate-bound-err.rs:100:17
|
LL | fn foo() -> impl Iterator<Item = i32, Item = u32> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `i32`, found `u32`
|
note: required by a bound in `Trait3::foo::{anon_assoc#0}`
--> $DIR/duplicate-bound-err.rs:96:31
|
LL | fn foo() -> impl Iterator<Item = i32, Item = u32>;
| ^^^^^^^^^^ required by this bound in `Trait3::foo::{anon_assoc#0}`
error[E0271]: expected `Empty<u32>` to be an iterator that yields `i32`, but it yields `u32`
--> $DIR/duplicate-bound-err.rs:108:16
|
LL | uncallable(iter::empty::<u32>());
| ---------- ^^^^^^^^^^^^^^^^^^^^ expected `i32`, found `u32`
| |
| required by a bound introduced by this call
|
note: required by a bound in `uncallable`
--> $DIR/duplicate-bound-err.rs:71:32
|
LL | fn uncallable(_: impl Iterator<Item = i32, Item = u32>) {}
| ^^^^^^^^^^ required by this bound in `uncallable`
error[E0271]: expected `Empty<i32>` to be an iterator that yields `u32`, but it yields `i32`
--> $DIR/duplicate-bound-err.rs:109:16
|
LL | uncallable(iter::empty::<i32>());
| ---------- ^^^^^^^^^^^^^^^^^^^^ expected `u32`, found `i32`
| |
| required by a bound introduced by this call
|
note: required by a bound in `uncallable`
--> $DIR/duplicate-bound-err.rs:71:44
|
LL | fn uncallable(_: impl Iterator<Item = i32, Item = u32>) {}
| ^^^^^^^^^^ required by this bound in `uncallable`
error[E0271]: type mismatch resolving `<() as Trait>::ASSOC == 4`
--> $DIR/duplicate-bound-err.rs:110:22
|
LL | uncallable_const(());
| ---------------- ^^ expected `4`, found `3`
| |
| required by a bound introduced by this call
|
= note: expected constant `4`
found constant `3`
note: required by a bound in `uncallable_const`
--> $DIR/duplicate-bound-err.rs:73:46
|
LL | fn uncallable_const(_: impl Trait<ASSOC = 3, ASSOC = 4>) {}
| ^^^^^^^^^ required by this bound in `uncallable_const`
error[E0271]: type mismatch resolving `<u32 as Trait>::ASSOC == 3`
--> $DIR/duplicate-bound-err.rs:111:22
|
LL | uncallable_const(4u32);
| ---------------- ^^^^ expected `3`, found `4`
| |
| required by a bound introduced by this call
|
= note: expected constant `3`
found constant `4`
note: required by a bound in `uncallable_const`
--> $DIR/duplicate-bound-err.rs:73:35
|
LL | fn uncallable_const(_: impl Trait<ASSOC = 3, ASSOC = 4>) {}
| ^^^^^^^^^ required by this bound in `uncallable_const`
error[E0271]: type mismatch resolving `<() as Trait>::ASSOC == 4`
--> $DIR/duplicate-bound-err.rs:112:20
|
LL | uncallable_rtn(());
| -------------- ^^ expected `4`, found `3`
| |
| required by a bound introduced by this call
|
= note: expected constant `4`
found constant `3`
note: required by a bound in `uncallable_rtn`
--> $DIR/duplicate-bound-err.rs:75:75
|
LL | fn uncallable_rtn(_: impl Trait<foo(..): Trait<ASSOC = 3>, foo(..): Trait<ASSOC = 4>>) {}
| ^^^^^^^^^ required by this bound in `uncallable_rtn`
error[E0271]: type mismatch resolving `<u32 as Trait>::ASSOC == 3`
--> $DIR/duplicate-bound-err.rs:113:20
|
LL | uncallable_rtn(17u32);
| -------------- ^^^^^ expected `3`, found `4`
| |
| required by a bound introduced by this call
|
= note: expected constant `3`
found constant `4`
note: required by a bound in `uncallable_rtn`
--> $DIR/duplicate-bound-err.rs:75:48
|
LL | fn uncallable_rtn(_: impl Trait<foo(..): Trait<ASSOC = 3>, foo(..): Trait<ASSOC = 4>>) {}
| ^^^^^^^^^ required by this bound in `uncallable_rtn`
error: aborting due to 25 previous errors
Some errors have detailed explanations: E0271, E0277, E0282, E0719.
For more information about an error, try `rustc --explain E0271`.
|
