tests/ui/uniform-paths/basic.rs

   1 // run-pass
   2 // edition:2018
   3
   4 #![allow(unused_imports)]
   5 #![allow(non_camel_case_types)]
   6
   7 // Test that ambiguity errors are not emitted between `self::test` and
   8 // `::test`, assuming the latter (crate) is not in `extern_prelude`.
   9 mod test {
  10     pub struct Foo(pub ());
  11 }
  12 use test::Foo;
  13
  14 // Test that qualified paths can refer to both the external crate and local item.
  15 mod std {
  16     pub struct io(pub ());
  17 }
  18 use ::std::io as std_io;
  19 use self::std::io as local_io;
  20
  21 fn main() {
  22     Foo(());
  23     let _ = std_io::stdout();
  24     local_io(());
  25
  26     {
  27         // Test that having `std_io` in a module scope and a non-module
  28         // scope is allowed, when both resolve to the same definition.
  29         use ::std::io as std_io;
  30         use std_io::stdout;
  31         let _ = stdout();
  32     }
  33 }