Error code E0118

An inherent implementation was defined for something which isn't a struct, enum, union, or trait object.

Erroneous code example:

#![allow(unused)] fn main() { impl<T> T { // error: no nominal type found for inherent implementation fn get_state(&self) -> String { // ... } } }

To fix this error, please implement a trait on the type or wrap it in a struct. Example:

#![allow(unused)] fn main() { // we create a trait here trait LiveLongAndProsper { fn get_state(&self) -> String; } // and now you can implement it on T impl<T> LiveLongAndProsper for T { fn get_state(&self) -> String { "He's dead, Jim!".to_owned() } } }

Alternatively, you can create a newtype. A newtype is a wrapping tuple-struct. For example, NewType is a newtype over Foo in struct NewType(Foo). Example:

#![allow(unused)] fn main() { struct TypeWrapper<T>(T); impl<T> TypeWrapper<T> { fn get_state(&self) -> String { "Fascinating!".to_owned() } } }