20 lines
515 B
Rust
20 lines
515 B
Rust
|
// Test that two distinct impls which match subtypes of one another
|
||
|
|
// yield coherence errors (or not) depending on the variance.
|
||
|
|
//
|
||
|
|
// Note: This scenario is currently accepted, but as part of the
|
||
|
|
// universe transition (#56105) may eventually become an error.
|
||
|
|
|
||
|
|
struct Foo<T> {
|
||
|
|
t: T,
|
||
|
|
}
|
||
|
|
|
||
|
|
impl Foo<for<'a, 'b> fn(&'a u8, &'b u8) -> &'a u8> {
|
||
|
|
fn method1(&self) {} //~ ERROR duplicate definitions with name `method1`
|
||
|
|
}
|
||
|
|
|
||
|
|
impl Foo<for<'a> fn(&'a u8, &'a u8) -> &'a u8> {
|
||
|
|
fn method1(&self) {}
|
||
|
|
}
|
||
|
|
|
||
|
|
fn main() {}
|