rust/tests/ui/traits/suggest-fully-qualified-path-without-adjustment.rs
Esteban Küber 91b9ffeab0 Reorder fullfillment errors to keep more interesting ones first
In `report_fullfillment_errors` push back `T: Sized`, `T: WellFormed`
and coercion errors to the end of the list. The pre-existing
deduplication logic eliminates redundant errors better that way, keeping
the resulting output with fewer errors than before, while also having
more detail.
2023-10-04 02:04:14 +00:00

63 lines
1.6 KiB
Rust

use std::ops::{Deref, DerefMut};
struct Thing;
trait Method<T> {
fn method(&self) -> T;
fn mut_method(&mut self) -> T;
}
impl Method<i32> for Thing {
fn method(&self) -> i32 { 0 }
fn mut_method(&mut self) -> i32 { 0 }
}
impl Method<u32> for Thing {
fn method(&self) -> u32 { 0 }
fn mut_method(&mut self) -> u32 { 0 }
}
trait MethodRef<T> {
fn by_self(self);
}
impl MethodRef<i32> for &Thing {
fn by_self(self) {}
}
impl MethodRef<u32> for &Thing {
fn by_self(self) {}
}
struct DerefsTo<T>(T);
impl<T> Deref for DerefsTo<T> {
type Target = T;
fn deref(&self) -> &Self::Target {
&self.0
}
}
impl<T> DerefMut for DerefsTo<T> {
fn deref_mut(&mut self) -> &mut Self::Target {
&mut self.0
}
}
fn main() {
let mut ref_thing = &Thing;
ref_thing.method(); //~ ERROR type annotations needed
ref_thing.by_self(); //~ ERROR type annotations needed
let mut mut_thing = &mut Thing;
mut_thing.method(); //~ ERROR type annotations needed
mut_thing.mut_method(); //~ ERROR type annotations needed
mut_thing.by_self(); //~ ERROR type annotations needed
let mut deref_to = &DerefsTo(Thing);
deref_to.method(); //~ ERROR type annotations needed
deref_to.mut_method(); //~ ERROR type annotations needed
deref_to.by_self(); //~ ERROR type annotations needed
let mut deref_deref_to = &DerefsTo(DerefsTo(Thing));
deref_deref_to.method(); //~ ERROR type annotations needed
deref_deref_to.mut_method(); //~ ERROR type annotations needed
deref_deref_to.by_self(); //~ ERROR type annotations needed
}