src/test/mir-opt/inline/inline-cycle-generic.rs

   1 // Check that inliner handles various forms of recursion and doesn't fall into
   2 // an infinite inlining cycle. The particular outcome of inlining is not
   3 // crucial otherwise.
   4 //
   5 // Regression test for issue #78573.
   6
   7 // EMIT_MIR inline_cycle_generic.main.Inline.diff
   8 fn main() {
   9     <C as Call>::call();
  10 }
  11
  12 pub trait Call {
  13     fn call();
  14 }
  15
  16 pub struct A;
  17 pub struct B<T>(T);
  18 pub struct C;
  19
  20 impl Call for A {
  21     #[inline]
  22     fn call() {
  23         <B<C> as Call>::call()
  24     }
  25 }
  26
  27
  28 impl<T: Call> Call for B<T> {
  29     #[inline]
  30     fn call() {
  31         <T as Call>::call()
  32     }
  33 }
  34
  35 impl Call for C {
  36     #[inline]
  37     fn call() {
  38         <B<A> as Call>::call()
  39     }
  40 }