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Unrolled build for rust-lang#122224
Rollup merge of rust-lang#122224 - gurry:add-tests, r=Nadrieril Add missing regression tests Add tests for issues rust-lang#121612 and rust-lang#121424 Closes rust-lang#121612 Closes rust-lang#121424
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‎tests/ui/trait-bounds/ice-unsized-struct-arg-issue-121612.rs

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// Regression test for issue #121612
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trait Trait {}
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impl Trait for bool {}
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struct MySlice<T: FnOnce(&T, Idx) -> Idx>(bool, T);
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//~^ ERROR cannot find type `Idx` in this scope
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//~| ERROR cannot find type `Idx` in this scope
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type MySliceBool = MySlice<[bool]>;
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const MYSLICE_GOOD: &MySliceBool = &MySlice(true, [false]);
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//~^ ERROR the size for values of type `[bool]` cannot be known at compilation time
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//~| ERROR the size for values of type `[bool]` cannot be known at compilation time
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fn main() {}

‎tests/ui/trait-bounds/ice-unsized-struct-arg-issue-121612.stderr

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error[E0412]: cannot find type `Idx` in this scope
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--> $DIR/ice-unsized-struct-arg-issue-121612.rs:5:30
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|
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LL | struct MySlice<T: FnOnce(&T, Idx) -> Idx>(bool, T);
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| ^^^ not found in this scope
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error[E0412]: cannot find type `Idx` in this scope
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--> $DIR/ice-unsized-struct-arg-issue-121612.rs:5:38
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|
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LL | struct MySlice<T: FnOnce(&T, Idx) -> Idx>(bool, T);
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| ^^^ not found in this scope
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error[E0277]: the size for values of type `[bool]` cannot be known at compilation time
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--> $DIR/ice-unsized-struct-arg-issue-121612.rs:9:22
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|
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LL | const MYSLICE_GOOD: &MySliceBool = &MySlice(true, [false]);
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| ^^^^^^^^^^^ doesn't have a size known at compile-time
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|
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= help: the trait `Sized` is not implemented for `[bool]`
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note: required by an implicit `Sized` bound in `MySlice`
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--> $DIR/ice-unsized-struct-arg-issue-121612.rs:5:16
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|
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LL | struct MySlice<T: FnOnce(&T, Idx) -> Idx>(bool, T);
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| ^ required by the implicit `Sized` requirement on this type parameter in `MySlice`
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help: you could relax the implicit `Sized` bound on `T` if it were used through indirection like `&T` or `Box<T>`
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--> $DIR/ice-unsized-struct-arg-issue-121612.rs:5:16
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|
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LL | struct MySlice<T: FnOnce(&T, Idx) -> Idx>(bool, T);
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| ^ - ...if indirection were used here: `Box<T>`
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| |
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| this could be changed to `T: ?Sized`...
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error[E0277]: the size for values of type `[bool]` cannot be known at compilation time
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--> $DIR/ice-unsized-struct-arg-issue-121612.rs:9:22
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|
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LL | const MYSLICE_GOOD: &MySliceBool = &MySlice(true, [false]);
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| ^^^^^^^^^^^ doesn't have a size known at compile-time
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|
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= help: the trait `Sized` is not implemented for `[bool]`
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note: required by an implicit `Sized` bound in `MySlice`
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--> $DIR/ice-unsized-struct-arg-issue-121612.rs:5:16
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|
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LL | struct MySlice<T: FnOnce(&T, Idx) -> Idx>(bool, T);
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| ^ required by the implicit `Sized` requirement on this type parameter in `MySlice`
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help: you could relax the implicit `Sized` bound on `T` if it were used through indirection like `&T` or `Box<T>`
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--> $DIR/ice-unsized-struct-arg-issue-121612.rs:5:16
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|
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LL | struct MySlice<T: FnOnce(&T, Idx) -> Idx>(bool, T);
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| ^ - ...if indirection were used here: `Box<T>`
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| |
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| this could be changed to `T: ?Sized`...
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= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
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error: aborting due to 4 previous errors
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Some errors have detailed explanations: E0277, E0412.
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For more information about an error, try `rustc --explain E0277`.

‎tests/ui/trait-bounds/ice-unsized-struct-arg-issue2-121424.rs

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// Regression test for issue #121424
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#[repr(C)]
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struct MySlice<T: Copy>(bool, T);
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type MySliceBool = MySlice<[bool]>;
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const MYSLICE_GOOD: &MySliceBool = &MySlice(true, [false]);
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//~^ ERROR the trait bound `[bool]: Copy` is not satisfied
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//~| ERROR the trait bound `[bool]: Copy` is not satisfied
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fn main() {}

‎tests/ui/trait-bounds/ice-unsized-struct-arg-issue2-121424.stderr

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error[E0277]: the trait bound `[bool]: Copy` is not satisfied
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--> $DIR/ice-unsized-struct-arg-issue2-121424.rs:5:22
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|
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LL | const MYSLICE_GOOD: &MySliceBool = &MySlice(true, [false]);
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| ^^^^^^^^^^^ the trait `Copy` is not implemented for `[bool]`
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|
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= help: the trait `Copy` is implemented for `[T; N]`
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note: required by a bound in `MySlice`
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--> $DIR/ice-unsized-struct-arg-issue2-121424.rs:3:19
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|
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LL | struct MySlice<T: Copy>(bool, T);
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| ^^^^ required by this bound in `MySlice`
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error[E0277]: the trait bound `[bool]: Copy` is not satisfied
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--> $DIR/ice-unsized-struct-arg-issue2-121424.rs:5:22
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|
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LL | const MYSLICE_GOOD: &MySliceBool = &MySlice(true, [false]);
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| ^^^^^^^^^^^ the trait `Copy` is not implemented for `[bool]`
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|
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= help: the trait `Copy` is implemented for `[T; N]`
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note: required by a bound in `MySlice`
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--> $DIR/ice-unsized-struct-arg-issue2-121424.rs:3:19
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|
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LL | struct MySlice<T: Copy>(bool, T);
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| ^^^^ required by this bound in `MySlice`
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= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
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error: aborting due to 2 previous errors
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For more information about this error, try `rustc --explain E0277`.

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