2 // aux-build: extern_crate.rs
5 extern crate extern_crate;
6 // @has foo/fn.extern_fn.html '//pre[@class="rust fn"]' \
7 // 'pub fn extern_fn<const N: usize>() -> impl Iterator<Item = [u8; N]>'
8 pub use extern_crate::extern_fn;
9 // @has foo/struct.ExternTy.html '//pre[@class="rust struct"]' \
10 // 'pub struct ExternTy<const N: usize> {'
11 pub use extern_crate::ExternTy;
12 // @has foo/type.TyAlias.html '//pre[@class="rust typedef"]' \
13 // 'type TyAlias<const N: usize> = ExternTy<N>;'
14 pub use extern_crate::TyAlias;
15 // @has foo/trait.WTrait.html '//pre[@class="rust trait"]' \
16 // 'pub trait WTrait<const N: usize, const M: usize>'
17 // @has - '//*[@class="rust trait"]' 'fn hey<const P: usize>() -> usize'
18 pub use extern_crate::WTrait;
20 // @has foo/trait.Trait.html '//pre[@class="rust trait"]' \
21 // 'pub trait Trait<const N: usize>'
22 // @has - '//*[@id="impl-Trait%3C1%3E-for-u8"]//h3[@class="code-header"]' 'impl Trait<1> for u8'
23 // @has - '//*[@id="impl-Trait%3C2%3E-for-u8"]//h3[@class="code-header"]' 'impl Trait<2> for u8'
24 // @has - '//*[@id="impl-Trait%3C{1%20+%202}%3E-for-u8"]//h3[@class="code-header"]' 'impl Trait<{1 + 2}> for u8'
25 // @has - '//*[@id="impl-Trait%3CN%3E-for-%5Bu8%3B%20N%5D"]//h3[@class="code-header"]' \
26 // 'impl<const N: usize> Trait<N> for [u8; N]'
27 pub trait Trait<const N: usize> {}
28 impl Trait<1> for u8 {}
29 impl Trait<2> for u8 {}
30 impl Trait<{1 + 2}> for u8 {}
31 impl<const N: usize> Trait<N> for [u8; N] {}
33 // @has foo/struct.Foo.html '//pre[@class="rust struct"]' \
34 // 'pub struct Foo<const N: usize>where u8: Trait<N>'
35 pub struct Foo<const N: usize> where u8: Trait<N>;
36 // @has foo/struct.Bar.html '//pre[@class="rust struct"]' 'pub struct Bar<T, const N: usize>(_)'
37 pub struct Bar<T, const N: usize>([T; N]);
39 // @has foo/struct.Foo.html '//*[@id="impl-Foo%3CM%3E"]/h3[@class="code-header"]' 'impl<const M: usize> Foo<M>where u8: Trait<M>'
40 impl<const M: usize> Foo<M> where u8: Trait<M> {
41 // @has - '//*[@id="associatedconstant.FOO_ASSOC"]' 'pub const FOO_ASSOC: usize'
42 pub const FOO_ASSOC: usize = M + 13;
44 // @has - '//*[@id="method.hey"]' 'pub fn hey<const N: usize>(&self) -> Bar<u8, N>'
45 pub fn hey<const N: usize>(&self) -> Bar<u8, N> {
50 // @has foo/struct.Bar.html '//*[@id="impl-Bar%3Cu8%2C%20M%3E"]/h3[@class="code-header"]' 'impl<const M: usize> Bar<u8, M>'
51 impl<const M: usize> Bar<u8, M> {
52 // @has - '//*[@id="method.hey"]' \
53 // 'pub fn hey<const N: usize>(&self) -> Foo<N>where u8: Trait<N>'
54 pub fn hey<const N: usize>(&self) -> Foo<N> where u8: Trait<N> {
59 // @has foo/fn.test.html '//pre[@class="rust fn"]' \
60 // 'pub fn test<const N: usize>() -> impl Trait<N>where u8: Trait<N>'
61 pub fn test<const N: usize>() -> impl Trait<N> where u8: Trait<N> {
65 // @has foo/fn.a_sink.html '//pre[@class="rust fn"]' \
66 // 'pub async fn a_sink<const N: usize>(v: [u8; N]) -> impl Trait<N>'
67 pub async fn a_sink<const N: usize>(v: [u8; N]) -> impl Trait<N> {
71 // @has foo/fn.b_sink.html '//pre[@class="rust fn"]' \
72 // 'pub async fn b_sink<const N: usize>(_: impl Trait<N>)'
73 pub async fn b_sink<const N: usize>(_: impl Trait<N>) {}
75 // @has foo/fn.concrete.html '//pre[@class="rust fn"]' \
76 // 'pub fn concrete() -> [u8; 22]'
77 pub fn concrete() -> [u8; 3 + std::mem::size_of::<u64>() << 1] {
81 // @has foo/type.Faz.html '//pre[@class="rust typedef"]' \
82 // 'type Faz<const N: usize> = [u8; N];'
83 pub type Faz<const N: usize> = [u8; N];
84 // @has foo/type.Fiz.html '//pre[@class="rust typedef"]' \
85 // 'type Fiz<const N: usize> = [[u8; N]; 48];'
86 pub type Fiz<const N: usize> = [[u8; N]; 3 << 4];
88 macro_rules! define_me {
90 pub struct $t<const $q: usize>([u8; $q]);
94 // @has foo/struct.Foz.html '//pre[@class="rust struct"]' \
95 // 'pub struct Foz<const N: usize>(_);'
102 impl<const N: usize> Q for [u8; N] {
103 const ASSOC: usize = N;
106 // @has foo/fn.q_user.html '//pre[@class="rust fn"]' \
107 // 'pub fn q_user() -> [u8; 13]'
108 pub fn q_user() -> [u8; <[u8; 13] as Q>::ASSOC] {
109 [0; <[u8; 13] as Q>::ASSOC]
112 // @has foo/union.Union.html '//pre[@class="rust union"]' \
113 // 'pub union Union<const N: usize>'
114 pub union Union<const N: usize> {
115 // @has - //pre "pub arr: [u8; N]"
117 // @has - //pre "pub another_arr: [(); N]"
118 pub another_arr: [(); N],
121 // @has foo/enum.Enum.html '//pre[@class="rust enum"]' \
122 // 'pub enum Enum<const N: usize>'
123 pub enum Enum<const N: usize> {
124 // @has - //pre "Variant([u8; N])"
126 // @has - //pre "EmptyVariant"