File: deref-const-fn.rs

package info (click to toggle)
rustc-web 1.78.0%2Bdfsg1-2~deb12u3
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,245,420 kB
  • sloc: xml: 147,985; javascript: 18,022; sh: 11,083; python: 10,265; ansic: 6,172; cpp: 5,023; asm: 4,390; makefile: 4,269
file content (38 lines) | stat: -rw-r--r-- 1,145 bytes parent folder | download | duplicates (7)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
// This test ensures that the const methods from Deref aren't shown as const.
// For more information, see https://github.com/rust-lang/rust/issues/90855.

#![crate_name = "foo"]

#![feature(staged_api)]

#![stable(feature = "rust1", since = "1.0.0")]

// @has 'foo/struct.Bar.html'
#[stable(feature = "rust1", since = "1.0.0")]
pub struct Bar;

impl Bar {
    // @has - '//*[@id="method.len"]' 'pub const fn len(&self) -> usize'
    // @has - '//*[@id="method.len"]//span[@class="since"]' 'const: 1.0.0'
    #[stable(feature = "rust1", since = "1.0.0")]
    #[rustc_const_stable(feature = "rust1", since = "1.0.0")]
    pub const fn len(&self) -> usize { 0 }
}

#[stable(feature = "rust1", since = "1.0.0")]
pub struct Foo {
    value: Bar,
}

// @has 'foo/struct.Foo.html'
// @has - '//*[@id="method.len"]' 'pub fn len(&self) -> usize'
// @!has - '//*[@id="method.len"]//span[@class="since"]' '1.0.0'
// @!has - '//*[@id="method.len"]//span[@class="since"]' '(const: 1.0.0)'
#[stable(feature = "rust1", since = "1.0.0")]
impl std::ops::Deref for Foo {
    type Target = Bar;

    fn deref(&self) -> &Self::Target {
        &self.value
    }
}