File: param-env-trait-candidate-2.rs

package info (click to toggle)
rustc 1.85.0%2Bdfsg2-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 893,176 kB
  • sloc: xml: 158,127; python: 35,830; javascript: 19,497; cpp: 19,002; sh: 17,245; ansic: 13,127; asm: 4,376; makefile: 1,051; lisp: 29; perl: 29; ruby: 19; sql: 11
file content (29 lines) | stat: -rw-r--r-- 453 bytes parent folder | download | duplicates (6) 
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
 
//@ check-pass
//@ compile-flags: -Znext-solver

// See https://github.com/rust-lang/trait-system-refactor-initiative/issues/1,
// a minimization of a pattern in core.

trait Iterator {
    type Item;
}

struct Flatten<I>(I);

impl<I, U> Iterator for Flatten<I>
where
    I: Iterator<Item = U>,
{
    type Item = U;
}

fn needs_iterator<I: Iterator>() {}

fn environment<J>()
where
    J: Iterator,
{
    needs_iterator::<Flatten<J>>();
}

fn main() {}