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// Test the rendering of `#[repr]` on ADTs.
#![feature(repr_simd)] // only used for the `ReprSimd` test case
// Check the "local case" (HIR cleaning) //
// Don't render the default repr which is `Rust`.
//@ has 'repr/struct.ReprDefault.html'
//@ !has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(Rust)]'
pub struct ReprDefault;
// Don't render the `Rust` repr — even if given explicitly — since it's the default.
//@ has 'repr/struct.ReprRust.html'
//@ !has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(Rust)]'
#[repr(Rust)] // omitted
pub struct ReprRust;
//@ has 'repr/struct.ReprCPubFields.html'
//@ has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(C)]'
#[repr(C)] // public
pub struct ReprCPubFields {
pub a: u32,
pub b: u32,
}
//@ has 'repr/struct.ReprCPrivField.html'
//@ !has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(C)]'
#[repr(C)] // private...
pub struct ReprCPrivField {
a: u32, // ...since this is private
pub b: u32,
}
//@ has 'repr/enum.ReprIsize.html'
//@ has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(isize)]'
#[repr(isize)] // public
pub enum ReprIsize {
Bla,
}
//@ has 'repr/enum.ReprU32HiddenVariant.html'
//@ !has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(u32)]'
#[repr(u32)] // private...
pub enum ReprU32HiddenVariant {
#[doc(hidden)]
Hidden, // ...since this is hidden
Public,
}
//@ has 'repr/struct.ReprAlignHiddenField.html'
//@ !has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(align(4))]'
#[repr(align(4))] // private...
pub struct ReprAlignHiddenField {
#[doc(hidden)]
pub hidden: i16, // ...since this field is hidden
}
//@ has 'repr/struct.ReprSimd.html'
//@ has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(simd, packed(2))]'
#[repr(simd, packed(2))] // public
pub struct ReprSimd {
pub field: [u8; 1],
}
//@ has 'repr/enum.ReprU32Align.html'
//@ has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(u32, align(8))]'
#[repr(u32, align(8))] // public
pub enum ReprU32Align {
Variant(u16),
}
//@ has 'repr/enum.ReprCHiddenVariantField.html'
//@ !has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(C)]'
#[repr(C)] // private...
pub enum ReprCHiddenVariantField {
Variant { #[doc(hidden)] field: () }, //...since this field is hidden
}
//@ has 'repr/struct.ReprTransparentPrivField.html'
//@ !has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(transparent)]'
#[repr(transparent)] // private...
pub struct ReprTransparentPrivField {
field: u32, // ...since the non-1-ZST field is private
}
//@ has 'repr/struct.ReprTransparentPriv1ZstFields.html'
//@ has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(transparent)]'
#[repr(transparent)] // public...
pub struct ReprTransparentPriv1ZstFields {
marker0: Marker,
pub main: u64, // ...since the non-1-ZST field is public and visible
marker1: Marker,
} // the two private 1-ZST fields don't matter
//@ has 'repr/struct.ReprTransparentPrivFieldPub1ZstField.html'
//@ !has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(transparent)]'
#[repr(transparent)] // private...
pub struct ReprTransparentPrivFieldPub1ZstField {
main: [u16; 0], // ...since the non-1-ZST field is private
pub marker: Marker, // this public 1-ZST field doesn't matter
}
//@ has 'repr/struct.ReprTransparentPub1ZstField.html'
//@ has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(transparent)]'
#[repr(transparent)] // public...
pub struct ReprTransparentPub1ZstField {
marker0: Marker, // ...since we don't have a non-1-ZST field...
pub marker1: Marker, // ...and this field is public and visible
}
//@ has 'repr/struct.ReprTransparentUnitStruct.html'
//@ has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(transparent)]'
#[repr(transparent)] // public
pub struct ReprTransparentUnitStruct;
//@ has 'repr/enum.ReprTransparentEnumUnitVariant.html'
//@ has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(transparent)]'
#[repr(transparent)] // public
pub enum ReprTransparentEnumUnitVariant {
Variant,
}
//@ has 'repr/enum.ReprTransparentEnumHiddenUnitVariant.html'
//@ !has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(transparent)]'
#[repr(transparent)] // private
pub enum ReprTransparentEnumHiddenUnitVariant {
#[doc(hidden)] Variant(u32),
}
//@ has 'repr/enum.ReprTransparentEnumPub1ZstField.html'
//@ has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(transparent)]'
#[repr(transparent)] // public...
pub enum ReprTransparentEnumPub1ZstField {
Variant {
field: u64, // ...since the non-1-ZST field is public
#[doc(hidden)]
marker: Marker, // this hidden 1-ZST field doesn't matter
},
}
//@ has 'repr/enum.ReprTransparentEnumHidden1ZstField.html'
//@ !has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(transparent)]'
#[repr(transparent)] // private...
pub enum ReprTransparentEnumHidden1ZstField {
Variant {
#[doc(hidden)]
field: u64, // ...since the non-1-ZST field is public
},
}
struct Marker; // 1-ZST
// Check the "extern case" (middle cleaning) //
// Internally, HIR and middle cleaning share `#[repr]` rendering.
// Thus we'll only test the very basics in this section.
//@ aux-build: ext-repr.rs
extern crate ext_repr as ext;
// Regression test for <https://github.com/rust-lang/rust/issues/110698>.
//@ has 'repr/enum.ReprI8.html'
//@ has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(i8)]'
pub use ext::ReprI8;
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