src/test/ui/inference/issue-81522.rs

   1 // Regression test for #81522.
   2 // Ensures that `#[allow(unstable_name_collisions)]` appended to things other than function
   3 // suppresses the corresponding diagnostics emitted from inside them.
   4 // But note that this attribute doesn't work for macro invocations if it is appended directly.
   5
   6 // aux-build:inference_unstable_iterator.rs
   7 // aux-build:inference_unstable_itertools.rs
   8 // run-pass
   9
  10 extern crate inference_unstable_iterator;
  11 extern crate inference_unstable_itertools;
  12
  13 #[allow(unused_imports)]
  14 use inference_unstable_iterator::IpuIterator;
  15 use inference_unstable_itertools::IpuItertools;
  16
  17 fn main() {
  18     // expression statement
  19     #[allow(unstable_name_collisions)]
  20     'x'.ipu_flatten();
  21
  22     // let statement
  23     #[allow(unstable_name_collisions)]
  24     let _ = 'x'.ipu_flatten();
  25
  26     // block expression
  27     #[allow(unstable_name_collisions)]
  28     {
  29         'x'.ipu_flatten();
  30     }
  31 }