src/test/ui/borrowck/issue-82126-mismatched-subst-and-hir.rs

   1 // Regression test for #82126. Checks that mismatched lifetimes and types are
   2 // properly handled.
   3
   4 // edition:2018
   5
   6 use std::sync::Mutex;
   7
   8 struct MarketMultiplier {}
   9
  10 impl MarketMultiplier {
  11     fn buy(&mut self) -> &mut usize {
  12         todo!()
  13     }
  14 }
  15
  16 async fn buy_lock(generator: &Mutex<MarketMultiplier>) -> LockedMarket<'_> {
  17     //~^ ERROR this struct takes 0 lifetime arguments but 1 lifetime argument was supplied
  18     //~^^ ERROR this struct takes 1 generic argument but 0 generic arguments were supplied
  19     LockedMarket(generator.lock().unwrap().buy())
  20     //~^ ERROR cannot return value referencing temporary
  21 }
  22
  23 struct LockedMarket<T>(T);
  24
  25 fn main() {}