57 lines
1.4 KiB
Rust
57 lines
1.4 KiB
Rust
// build-fail
|
|
// revisions: legacy v0
|
|
//[legacy]compile-flags: -Z unstable-options -C symbol-mangling-version=legacy
|
|
//[v0]compile-flags: -C symbol-mangling-version=v0
|
|
//[legacy]normalize-stderr-test: "h[\w{16}]+" -> "SYMBOL_HASH"
|
|
|
|
#![feature(rustc_attrs)]
|
|
|
|
pub(crate) struct Foo<I, E>(I, E);
|
|
|
|
pub trait Iterator2 {
|
|
type Item;
|
|
|
|
fn next(&mut self) -> Option<Self::Item>;
|
|
|
|
fn find<P>(&mut self, predicate: P) -> Option<Self::Item>
|
|
where
|
|
Self: Sized,
|
|
P: FnMut(&Self::Item) -> bool,
|
|
{
|
|
unimplemented!()
|
|
}
|
|
}
|
|
|
|
struct Bar;
|
|
|
|
impl Iterator2 for Bar {
|
|
type Item = (u32, u16);
|
|
|
|
fn next(&mut self) -> Option<Self::Item> {
|
|
unimplemented!()
|
|
}
|
|
}
|
|
|
|
impl<I, T, E> Iterator2 for Foo<I, E>
|
|
where
|
|
I: Iterator2<Item = (T, E)>,
|
|
{
|
|
type Item = T;
|
|
|
|
#[rustc_symbol_name]
|
|
//[legacy]~^ ERROR symbol-name(_ZN72_$LT$issue_75326..Foo$LT$I$C$E$GT$$u20$as$u20$issue_75326..Iterator2$GT$4next
|
|
//[legacy]~| ERROR demangling(<issue_75326::Foo<I,E> as issue_75326::Iterator2>::next
|
|
//[legacy]~| ERROR demangling-alt(<issue_75326::Foo<I,E> as issue_75326::Iterator2>::next)
|
|
//[v0]~^^^^ ERROR symbol-name
|
|
//[v0]~| ERROR demangling
|
|
//[v0]~| ERROR demangling-alt(<issue_75326::Foo<_, _> as issue_75326::Iterator2>::next)
|
|
fn next(&mut self) -> Option<Self::Item> {
|
|
self.find(|_| true)
|
|
}
|
|
}
|
|
|
|
fn main() {
|
|
let mut a = Foo(Bar, 1u16);
|
|
let _ = a.next();
|
|
}
|