mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-26 08:44:35 +00:00
c30e15aded
Trait predicates for types which have errors may still evaluate to OK leading to downstream ICEs. Now we return a selection error for such types in candidate assembly and thereby prevent such issues
20 lines
413 B
Rust
20 lines
413 B
Rust
fn server() -> impl {
|
|
//~^ ERROR at least one trait must be specified
|
|
().map2(|| "")
|
|
}
|
|
|
|
trait FilterBase2 {
|
|
fn map2<F>(self, f: F) -> Map2<F> {}
|
|
//~^ ERROR mismatched types
|
|
//~^^ ERROR the size for values of type `Self` cannot be known at compilation time
|
|
}
|
|
|
|
struct Map2<Segment2> {
|
|
_func: F,
|
|
//~^ ERROR cannot find type `F` in this scope
|
|
}
|
|
|
|
impl<F> FilterBase2 for F {}
|
|
|
|
fn main() {}
|