diff options
Diffstat (limited to 'src/test/ui/overloaded/overloaded-calls-param-vtables.rs')
-rw-r--r-- | src/test/ui/overloaded/overloaded-calls-param-vtables.rs | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/test/ui/overloaded/overloaded-calls-param-vtables.rs b/src/test/ui/overloaded/overloaded-calls-param-vtables.rs new file mode 100644 index 000000000..fde1ad20f --- /dev/null +++ b/src/test/ui/overloaded/overloaded-calls-param-vtables.rs @@ -0,0 +1,32 @@ +// run-pass +// Tests that nested vtables work with overloaded calls. + +// pretty-expanded FIXME #23616 + +#![feature(unboxed_closures, fn_traits)] + +use std::marker::PhantomData; +use std::ops::Fn; +use std::ops::Add; + +struct G<A>(PhantomData<A>); + +impl<'a, A: Add<i32, Output=i32>> Fn<(A,)> for G<A> { + extern "rust-call" fn call(&self, (arg,): (A,)) -> i32 { + arg.add(1) + } +} + +impl<'a, A: Add<i32, Output=i32>> FnMut<(A,)> for G<A> { + extern "rust-call" fn call_mut(&mut self, args: (A,)) -> i32 { self.call(args) } +} + +impl<'a, A: Add<i32, Output=i32>> FnOnce<(A,)> for G<A> { + type Output = i32; + extern "rust-call" fn call_once(self, args: (A,)) -> i32 { self.call(args) } +} + +fn main() { + // ICE trigger + (G(PhantomData))(1); +} |