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|
A method or constant was implemented on a primitive type.
Erroneous code example:
```compile_fail,E0390
struct Foo {
x: i32
}
impl *mut Foo {}
// error: cannot define inherent `impl` for primitive types
```
This isn't allowed, but using a trait to implement a method or constant
is a good solution.
Example:
```
struct Foo {
x: i32
}
trait Bar {
fn bar();
}
impl Bar for *mut Foo {
fn bar() {} // ok!
}
```
Instead of defining an inherent implementation on a reference, you could also
move the reference inside the implementation:
```compile_fail,E0390
struct Foo;
impl &Foo { // error: no nominal type found for inherent implementation
fn bar(self, other: Self) {}
}
```
becomes
```
struct Foo;
impl Foo {
fn bar(&self, other: &Self) {}
}
```
|
