rust/tests/ui/impl-trait/issues/infinite-impl-trait-issue-38064.stderr

error[E0720]: cannot resolve opaque type
  --> $DIR/infinite-impl-trait-issue-38064.rs:8:13
   |
LL | fn foo() -> impl Quux {
   |             ^^^^^^^^^ recursive opaque type
...
LL |     Foo(bar())
   |     ---------- returning here with type `Foo<impl Quux>`
...
LL | fn bar() -> impl Quux {
   |             --------- returning this type `Foo<impl Quux>`

error[E0720]: cannot resolve opaque type
  --> $DIR/infinite-impl-trait-issue-38064.rs:14:13
   |
LL | fn foo() -> impl Quux {
   |             --------- returning this type `Bar<impl Quux>`
...
LL | fn bar() -> impl Quux {
   |             ^^^^^^^^^ recursive opaque type
...
LL |     Bar(foo())
   |     ---------- returning here with type `Bar<impl Quux>`

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0720`.
review comments 2020-06-15 19:11:28 +00:00			`error[E0720]: cannot resolve opaque type`
Forbid impl Trait from referring to unnamable recursive types There is no type T, such that `T = [T; 2]`, we should not allow this to be circumvented by impl Trait. 2018-11-18 18:33:44 +00:00			`--> $DIR/infinite-impl-trait-issue-38064.rs:8:13`
Moved compile-fail tests to ui tests. 2018-08-08 12:28:26 +00:00			`\|`
Update tests 2019-03-09 12:03:44 +00:00			`LL \| fn foo() -> impl Quux {`
Expand "recursive opaque type" diagnostic Fix #70968, partially address #66523. 2020-04-19 23:52:15 +00:00			`\| ^^^^^^^^^ recursive opaque type`
			`...`
			`LL \| Foo(bar())`
pretty: trim paths of unique symbols If a symbol name can only be imported from one place for a type, and as long as it was not glob-imported anywhere in the current crate, we can trim its printed path and print only the name. This has wide implications on error messages with types, for example, shortening `std::vec::Vec` to just `Vec`, as long as there is no other `Vec` importable anywhere. This adds a new '-Z trim-diagnostic-paths=false' option to control this feature. On the good path, with no diagnosis printed, we should try to avoid issuing this query, so we need to prevent trimmed_def_paths query on several cases. This change also relies on a previous commit that differentiates between `Debug` and `Display` on various rustc types, where the latter is trimmed and presented to the user and the former is not. 2020-09-02 07:40:56 +00:00			\| ---------- returning here with type `Foo<impl Quux>`
Expand "recursive opaque type" diagnostic Fix #70968, partially address #66523. 2020-04-19 23:52:15 +00:00			`...`
			`LL \| fn bar() -> impl Quux {`
Bless tests. 2023-01-26 03:51:26 +00:00			\| --------- returning this type `Foo<impl Quux>`
Forbid impl Trait from referring to unnamable recursive types There is no type T, such that `T = [T; 2]`, we should not allow this to be circumvented by impl Trait. 2018-11-18 18:33:44 +00:00
review comments 2020-06-15 19:11:28 +00:00			`error[E0720]: cannot resolve opaque type`
Forbid impl Trait from referring to unnamable recursive types There is no type T, such that `T = [T; 2]`, we should not allow this to be circumvented by impl Trait. 2018-11-18 18:33:44 +00:00			`--> $DIR/infinite-impl-trait-issue-38064.rs:14:13`
			`\|`
Expand "recursive opaque type" diagnostic Fix #70968, partially address #66523. 2020-04-19 23:52:15 +00:00			`LL \| fn foo() -> impl Quux {`
Bless tests. 2023-01-26 03:51:26 +00:00			\| --------- returning this type `Bar<impl Quux>`
Expand "recursive opaque type" diagnostic Fix #70968, partially address #66523. 2020-04-19 23:52:15 +00:00			`...`
Update tests 2019-03-09 12:03:44 +00:00			`LL \| fn bar() -> impl Quux {`
Expand "recursive opaque type" diagnostic Fix #70968, partially address #66523. 2020-04-19 23:52:15 +00:00			`\| ^^^^^^^^^ recursive opaque type`
			`...`
			`LL \| Bar(foo())`
pretty: trim paths of unique symbols If a symbol name can only be imported from one place for a type, and as long as it was not glob-imported anywhere in the current crate, we can trim its printed path and print only the name. This has wide implications on error messages with types, for example, shortening `std::vec::Vec` to just `Vec`, as long as there is no other `Vec` importable anywhere. This adds a new '-Z trim-diagnostic-paths=false' option to control this feature. On the good path, with no diagnosis printed, we should try to avoid issuing this query, so we need to prevent trimmed_def_paths query on several cases. This change also relies on a previous commit that differentiates between `Debug` and `Display` on various rustc types, where the latter is trimmed and presented to the user and the former is not. 2020-09-02 07:40:56 +00:00			\| ---------- returning here with type `Bar<impl Quux>`
Moved compile-fail tests to ui tests. 2018-08-08 12:28:26 +00:00
Forbid impl Trait from referring to unnamable recursive types There is no type T, such that `T = [T; 2]`, we should not allow this to be circumvented by impl Trait. 2018-11-18 18:33:44 +00:00			`error: aborting due to 2 previous errors`
Moved compile-fail tests to ui tests. 2018-08-08 12:28:26 +00:00
Forbid impl Trait from referring to unnamable recursive types There is no type T, such that `T = [T; 2]`, we should not allow this to be circumvented by impl Trait. 2018-11-18 18:33:44 +00:00			For more information about this error, try `rustc --explain E0720`.