Add subdiagnostic suggestion to unresolved-reference diagnostic if it's a method scope and the variable exists on self #502
Description
If you do something like this in Rust:
struct Foo {
x: u8
}
impl Foo {
fn method(&self) {
let y = x;
}
}Then rustc gives a really nice diagnostic that tells you you probably meant to access self.x:
error[E0425]: cannot find value `x` in this scope
--> src/main.rs:7:17
|
7 | let y = x;
| ^
|
help: you might have meant to use the available field
|
7 | let y = self.x;
| +++++
We should add a similar suggestion to our unresolved-reference diagnostic in situations like this:
class Foo:
x: int
def method(self):
y = x