mirror of https://github.com/rust-lang/rust
137 lines
4.9 KiB
Rust
137 lines
4.9 KiB
Rust
#![deny(repr_transparent_external_private_fields)]
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//@ aux-build: repr-transparent-non-exhaustive.rs
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extern crate repr_transparent_non_exhaustive;
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use repr_transparent_non_exhaustive::{
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Private,
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NonExhaustive,
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NonExhaustiveEnum,
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NonExhaustiveVariant,
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ExternalIndirection,
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};
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pub struct InternalPrivate {
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_priv: (),
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}
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#[non_exhaustive]
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pub struct InternalNonExhaustive;
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pub struct InternalIndirection<T> {
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x: T,
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}
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pub type Sized = i32;
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#[repr(transparent)]
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pub struct T1(Sized, InternalPrivate);
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#[repr(transparent)]
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pub struct T2(Sized, InternalNonExhaustive);
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#[repr(transparent)]
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pub struct T3(Sized, InternalIndirection<(InternalPrivate, InternalNonExhaustive)>);
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#[repr(transparent)]
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pub struct T4(Sized, ExternalIndirection<(InternalPrivate, InternalNonExhaustive)>);
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#[repr(transparent)]
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pub struct T5(Sized, Private);
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//~^ ERROR zero-sized fields in `repr(transparent)` cannot contain external non-exhaustive types
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//~| WARN this was previously accepted by the compiler
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#[repr(transparent)]
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pub struct T6(Sized, NonExhaustive);
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//~^ ERROR zero-sized fields in `repr(transparent)` cannot contain external non-exhaustive types
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//~| WARN this was previously accepted by the compiler
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#[repr(transparent)]
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pub struct T7(Sized, NonExhaustiveEnum);
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//~^ ERROR zero-sized fields in `repr(transparent)` cannot contain external non-exhaustive types
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//~| WARN this was previously accepted by the compiler
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#[repr(transparent)]
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pub struct T8(Sized, NonExhaustiveVariant);
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//~^ ERROR zero-sized fields in `repr(transparent)` cannot contain external non-exhaustive types
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//~| WARN this was previously accepted by the compiler
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#[repr(transparent)]
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pub struct T9(Sized, InternalIndirection<Private>);
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//~^ ERROR zero-sized fields in `repr(transparent)` cannot contain external non-exhaustive types
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//~| WARN this was previously accepted by the compiler
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#[repr(transparent)]
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pub struct T10(Sized, InternalIndirection<NonExhaustive>);
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//~^ ERROR zero-sized fields in `repr(transparent)` cannot contain external non-exhaustive types
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//~| WARN this was previously accepted by the compiler
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#[repr(transparent)]
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pub struct T11(Sized, InternalIndirection<NonExhaustiveEnum>);
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//~^ ERROR zero-sized fields in `repr(transparent)` cannot contain external non-exhaustive types
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//~| WARN this was previously accepted by the compiler
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#[repr(transparent)]
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pub struct T12(Sized, InternalIndirection<NonExhaustiveVariant>);
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//~^ ERROR zero-sized fields in `repr(transparent)` cannot contain external non-exhaustive types
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//~| WARN this was previously accepted by the compiler
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#[repr(transparent)]
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pub struct T13(Sized, ExternalIndirection<Private>);
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//~^ ERROR zero-sized fields in `repr(transparent)` cannot contain external non-exhaustive types
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//~| WARN this was previously accepted by the compiler
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#[repr(transparent)]
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pub struct T14(Sized, ExternalIndirection<NonExhaustive>);
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//~^ ERROR zero-sized fields in `repr(transparent)` cannot contain external non-exhaustive types
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//~| WARN this was previously accepted by the compiler
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#[repr(transparent)]
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pub struct T15(Sized, ExternalIndirection<NonExhaustiveEnum>);
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//~^ ERROR zero-sized fields in `repr(transparent)` cannot contain external non-exhaustive types
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//~| WARN this was previously accepted by the compiler
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#[repr(transparent)]
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pub struct T16(Sized, ExternalIndirection<NonExhaustiveVariant>);
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//~^ ERROR zero-sized fields in `repr(transparent)` cannot contain external non-exhaustive types
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//~| WARN this was previously accepted by the compiler
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#[repr(transparent)]
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pub struct T17(NonExhaustive, Sized);
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//~^ ERROR zero-sized fields in `repr(transparent)` cannot contain external non-exhaustive types
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//~| WARN this was previously accepted by the compiler
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#[repr(transparent)]
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pub struct T18(NonExhaustive, NonExhaustive);
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//~^ ERROR zero-sized fields in `repr(transparent)` cannot contain external non-exhaustive types
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//~| WARN this was previously accepted by the compiler
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#[repr(transparent)]
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pub struct T19(NonExhaustive, Private);
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//~^ ERROR zero-sized fields in `repr(transparent)` cannot contain external non-exhaustive types
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//~| WARN this was previously accepted by the compiler
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#[repr(transparent)]
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pub struct T19Flipped(Private, NonExhaustive);
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//~^ ERROR zero-sized fields in `repr(transparent)` cannot contain external non-exhaustive types
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//~| WARN this was previously accepted by the compiler
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#[repr(transparent)]
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pub struct T20(NonExhaustive);
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// Okay, since it's the only field.
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#[repr(transparent)]
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pub struct T21(NonExhaustive, InternalNonExhaustive);
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// Okay, since there's only 1 foreign non-exhaustive type.
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#[repr(transparent)]
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pub struct T21Flipped(InternalNonExhaustive, NonExhaustive);
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// Okay, since there's only 1 foreign non-exhaustive type.
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#[repr(transparent)]
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pub struct T22(NonExhaustive, InternalPrivate);
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// Okay, since there's only 1 foreign non-exhaustive type.
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#[repr(transparent)]
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pub struct T22Flipped(InternalPrivate, NonExhaustive);
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// Okay, since there's only 1 foreign non-exhaustive type.
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fn main() {}
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