rust/src/test/ui/issues/issue-7673-cast-generically-implemented-trait.rs

// check-pass
#![allow(dead_code)]
// pretty-expanded FIXME #23616

/*

#7673 Polymorphically creating traits barely works

*/

#![feature(box_syntax)]

pub fn main() {}

trait A {
    fn dummy(&self) { }
}

impl<T: 'static> A for T {}

fn owned2<T: 'static>(a: Box<T>) { a as Box<dyn A>; }
fn owned3<T: 'static>(a: Box<T>) { box a as Box<dyn A>; }
Use check-pass in ui tests where appropriate 2019-11-03 18:00:00 -06:00			`// check-pass`
Add `#![allow(..)]` as necessary to get re-migrated run-pass tests compiling with clean stderr again. Most were added mechanically. 2018-09-25 16:51:35 -05:00			`#![allow(dead_code)]`
rustdoc: Replace no-pretty-expanded with pretty-expanded Now that features must be declared expanded source often does not compile. This adds 'pretty-expanded' to a bunch of test cases that still work. 2015-03-22 15:13:15 -05:00			`// pretty-expanded FIXME #23616`

Tests for fixed issues. Closes #2074. Closes #5008. Closes #7519. Closes #7673. Closes #7770. Closes #8171. 2013-09-16 08:05:47 -05:00			`/*`

			`#7673 Polymorphically creating traits barely works`

			`*/`

fallout: run-pass tests that use box. (many could be ported to `Box::new` instead in the future.) 2015-01-07 19:25:56 -06:00			`#![feature(box_syntax)]`
librustc: Remove `~EXPR`, `~TYPE`, and `~PAT` from the language, except for `~str`/`~[]`. Note that `~self` still remains, since I forgot to add support for `Box<self>` before the snapshot. How to update your code: * Instead of `~EXPR`, you should write `box EXPR`. * Instead of `~TYPE`, you should write `Box<Type>`. * Instead of `~PATTERN`, you should write `box PATTERN`. [breaking-change] 2014-05-05 20:56:44 -05:00
Fix run-pass tests to have 'pub fn main' This is required by the check-fast target because each test is slurped up into a submodule. 2013-09-25 02:43:37 -05:00			`pub fn main() {}`
Tests for fixed issues. Closes #2074. Closes #5008. Closes #7519. Closes #7673. Closes #7770. Closes #8171. 2013-09-16 08:05:47 -05:00
Fallout: tests. As tests frequently elide things, lots of changes here. Some of this may have been poorly rebased, though I tried to be careful and preserve the spirit of the test. 2015-02-12 09:29:52 -06:00			`trait A {`
			`fn dummy(&self) { }`
			`}`

Tests for fixed issues. Closes #2074. Closes #5008. Closes #7519. Closes #7673. Closes #7770. Closes #8171. 2013-09-16 08:05:47 -05:00			`impl<T: 'static> A for T {}`

Update ui test suite to use dyn 2019-05-28 13:46:13 -05:00			`fn owned2<T: 'static>(a: Box<T>) { a as Box<dyn A>; }`
			`fn owned3<T: 'static>(a: Box<T>) { box a as Box<dyn A>; }`