rust/tests/ui/specialization/min_specialization/spec-iter.rs

21 lines
429 B
Rust
Raw Normal View History

// Check that we can specialize on a concrete iterator type. This requires us
// to consider which parameters in the parent impl are constrained.
// check-pass
#![feature(min_specialization)]
trait SpecFromIter<T> {
fn f(&self);
}
impl<'a, T: 'a, I: Iterator<Item = &'a T>> SpecFromIter<T> for I {
default fn f(&self) {}
}
impl<'a, T> SpecFromIter<T> for std::slice::Iter<'a, T> {
fn f(&self) {}
}
fn main() {}