rust/tests/rustdoc/type-layout.rs
2024-06-24 11:08:41 +02:00

94 lines
2.8 KiB
Rust

//@ compile-flags: --show-type-layout -Z unstable-options
//@ hasraw type_layout/struct.Foo.html 'Size: '
//@ hasraw - ' bytes'
//@ has - '//*[@id="layout"]/a[@href="#layout"]' ''
pub struct Foo {
pub a: usize,
b: Vec<String>,
}
//@ hasraw type_layout/enum.Bar.html 'Size: '
//@ hasraw - ' bytes'
pub enum Bar<'a> {
A(String),
B(&'a str, (std::collections::HashMap<String, usize>, Foo)),
}
//@ hasraw type_layout/union.Baz.html 'Size: '
//@ hasraw - ' bytes'
pub union Baz {
a: &'static str,
b: usize,
c: &'static [u8],
}
//@ hasraw type_layout/struct.X.html 'Size: '
//@ hasraw - ' bytes'
pub struct X(usize);
//@ hasraw type_layout/struct.Y.html 'Size: '
//@ hasraw - '1 byte'
//@ !hasraw - ' bytes'
pub struct Y(u8);
//@ hasraw type_layout/struct.Z.html 'Size: '
//@ hasraw - '0 bytes'
pub struct Z;
// We can't compute layout for generic types.
//@ hasraw type_layout/struct.Generic.html 'Unable to compute type layout, possibly due to this type having generic parameters'
//@ !hasraw - 'Size: '
pub struct Generic<T>(T);
// We *can*, however, compute layout for types that are only generic over lifetimes,
// because lifetimes are a type-system construct.
//@ hasraw type_layout/struct.GenericLifetimes.html 'Size: '
//@ hasraw - ' bytes'
pub struct GenericLifetimes<'a>(&'a str);
//@ hasraw type_layout/struct.Unsized.html 'Size: '
//@ hasraw - '(unsized)'
pub struct Unsized([u8]);
//@ hasraw type_layout/type.TypeAlias.html 'Size: '
//@ hasraw - ' bytes'
pub type TypeAlias = X;
//@ hasraw type_layout/type.GenericTypeAlias.html 'Size: '
//@ hasraw - '8 bytes'
pub type GenericTypeAlias = (Generic<(u32, ())>, Generic<u32>);
// Regression test for the rustdoc equivalent of #85103.
//@ hasraw type_layout/type.Edges.html 'Encountered an error during type layout; the type failed to be normalized.'
pub type Edges<'a, E> = std::borrow::Cow<'a, [E]>;
//@ !hasraw type_layout/trait.MyTrait.html 'Size: '
pub trait MyTrait {}
//@ hasraw type_layout/enum.Variants.html 'Size: '
//@ hasraw - '2 bytes'
//@ hasraw - '<code>A</code>: 0 bytes'
//@ hasraw - '<code>B</code>: 1 byte'
pub enum Variants {
A,
B(u8),
}
//@ hasraw type_layout/enum.WithNiche.html 'Size: '
//@ has - //p '4 bytes'
//@ hasraw - '<code>None</code>: 0 bytes'
//@ hasraw - '<code>Some</code>: 4 bytes'
pub enum WithNiche {
None,
Some(std::num::NonZero<u32>),
}
//@ hasraw type_layout/enum.Uninhabited.html 'Size: '
//@ hasraw - '0 bytes (<a href="https://doc.rust-lang.org/stable/reference/glossary.html#uninhabited">uninhabited</a>)'
pub enum Uninhabited {}
//@ hasraw type_layout/struct.Uninhabited2.html 'Size: '
//@ hasraw - '8 bytes (<a href="https://doc.rust-lang.org/stable/reference/glossary.html#uninhabited">uninhabited</a>)'
pub struct Uninhabited2(std::convert::Infallible, u64);