1 use std::ops::{Deref, DerefMut};
7 fn mut_method(&mut self) -> T;
10 impl Method<i32> for Thing {
11 fn method(&self) -> i32 { 0 }
12 fn mut_method(&mut self) -> i32 { 0 }
15 impl Method<u32> for Thing {
16 fn method(&self) -> u32 { 0 }
17 fn mut_method(&mut self) -> u32 { 0 }
22 impl MethodRef<i32> for &Thing {
25 impl MethodRef<u32> for &Thing {
30 struct DerefsTo<T>(T);
31 impl<T> Deref for DerefsTo<T> {
33 fn deref(&self) -> &Self::Target {
37 impl<T> DerefMut for DerefsTo<T> {
38 fn deref_mut(&mut self) -> &mut Self::Target {
44 let mut thing = Thing;
46 //~^ ERROR type annotations needed
47 //~| ERROR type annotations needed
48 thing.mut_method(); //~ ERROR type annotations needed
49 thing.by_self(); //~ ERROR type annotations needed
51 let mut deref_to = DerefsTo(Thing);
52 deref_to.method(); //~ ERROR type annotations needed
53 deref_to.mut_method(); //~ ERROR type annotations needed
54 deref_to.by_self(); //~ ERROR type annotations needed
56 let mut deref_deref_to = DerefsTo(DerefsTo(Thing));
57 deref_deref_to.method(); //~ ERROR type annotations needed
58 deref_deref_to.mut_method(); //~ ERROR type annotations needed
59 deref_deref_to.by_self(); //~ ERROR type annotations needed