rust/tests/ui/traits/region-pointer-simple.rs

// run-pass
trait Foo {
    fn f(&self) -> isize;
}

struct A {
    x: isize
}

impl Foo for A {
    fn f(&self) -> isize {
        println!("Today's number is {}", self.x);
        return self.x;
    }
}

pub fn main() {
    let a = A { x: 3 };
    let b = (&a) as &dyn Foo;
    assert_eq!(b.f(), 3);
}
Add `// run-pass` annotations to all the tests under `ui/run-pass/`. (I may have accidentally added it to some auxilliary crates as well; my emacs-macro-based methodology was pretty crude.) 2018-08-30 12:18:55 +00:00			`// run-pass`
rustc: Implement simple uses of &trait 2012-10-05 23:55:42 +00:00			`trait Foo {`
Mass rename uint/int to usize/isize Now that support has been removed, all lingering use cases are renamed. 2015-03-26 00:06:52 +00:00			`fn f(&self) -> isize;`
rustc: Implement simple uses of &trait 2012-10-05 23:55:42 +00:00			`}`

			`struct A {`
Mass rename uint/int to usize/isize Now that support has been removed, all lingering use cases are renamed. 2015-03-26 00:06:52 +00:00			`x: isize`
rustc: Implement simple uses of &trait 2012-10-05 23:55:42 +00:00			`}`

librustc: Replace `impl Type : Trait` with `impl Trait for Type`. rs=implflipping 2013-02-14 19:47:00 +00:00			`impl Foo for A {`
Mass rename uint/int to usize/isize Now that support has been removed, all lingering use cases are renamed. 2015-03-26 00:06:52 +00:00			`fn f(&self) -> isize {`
Remove re-exports of std::io::stdio::{print, println} in the prelude. The `print!` and `println!` macros are now the preferred method of printing, and so there is no reason to export the `stdio` functions in the prelude. The functions have also been replaced by their macro counterparts in the tutorial and other documentation so that newcomers don't get confused about what they should be using. 2014-01-09 10:06:55 +00:00			`println!("Today's number is {}", self.x);`
rustc: Implement simple uses of &trait 2012-10-05 23:55:42 +00:00			`return self.x;`
			`}`
			`}`

check-fast fallout from removing export, r=burningtree 2013-02-02 03:43:17 +00:00			`pub fn main() {`
rustc: Implement simple uses of &trait 2012-10-05 23:55:42 +00:00			`let a = A { x: 3 };`
Update run-pass test suite to use dyn 2019-05-28 18:47:21 +00:00			`let b = (&a) as &dyn Foo;`
Use assert_eq! rather than assert! where possible 2013-05-19 02:02:45 +00:00			`assert_eq!(b.f(), 3);`
rustc: Implement simple uses of &trait 2012-10-05 23:55:42 +00:00			`}`