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fn main() {
f1(|_: (), _: ()| {}); //~ ERROR type mismatch
f2(|_: (), _: ()| {}); //~ ERROR type mismatch
f3(|_: (), _: ()| {}); //~ ERROR type mismatch
f4(|_: (), _: ()| {}); //~ ERROR type mismatch
f5(|_: (), _: ()| {}); //~ ERROR type mismatch
g1(|_: (), _: ()| {}); //~ ERROR type mismatch
g2(|_: (), _: ()| {}); //~ ERROR type mismatch
g3(|_: (), _: ()| {}); //~ ERROR type mismatch
g4(|_: (), _: ()| {}); //~ ERROR type mismatch
h1(|_: (), _: (), _: (), _: ()| {}); //~ ERROR type mismatch
h2(|_: (), _: (), _: (), _: ()| {}); //~ ERROR type mismatch
}
// Basic
fn f1<F>(_: F) where F: Fn(&(), &()) {}
fn f2<F>(_: F) where F: for<'a> Fn(&'a (), &()) {}
fn f3<'a, F>(_: F) where F: Fn(&'a (), &()) {}
fn f4<F>(_: F) where F: for<'r> Fn(&(), &'r ()) {}
fn f5<F>(_: F) where F: for<'r> Fn(&'r (), &'r ()) {}
// Nested
fn g1<F>(_: F) where F: Fn(&(), Box<dyn Fn(&())>) {}
fn g2<F>(_: F) where F: Fn(&(), fn(&())) {}
fn g3<F>(_: F) where F: for<'s> Fn(&'s (), Box<dyn Fn(&())>) {}
fn g4<F>(_: F) where F: Fn(&(), for<'r> fn(&'r ())) {}
// Mixed
fn h1<F>(_: F) where F: Fn(&(), Box<dyn Fn(&())>, &(), fn(&(), &())) {}
fn h2<F>(_: F) where F: for<'t0> Fn(&(), Box<dyn Fn(&())>, &'t0 (), fn(&(), &())) {}
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