E0414: Method called as assoc fn

Explanation

A function declared with a self receiver was called through its type as though it were an associated function. A method needs a receiver value to supply self.

Likely cause

The call uses Type.method() instead of receiver.method(), or the declaration accidentally includes a self parameter. Construct or obtain a receiver value, or remove self if the function is meant to be associated with the type rather than an instance.

Examples

Method called through its type

struct Point {
    x: i32,

    fn value(self) -> i32 { self.x }
}
fn main() -> i32 {
    Point.value()
}

Call the method on a receiver

struct Point {
    x: i32,

    fn value(self) -> i32 { self.x }
}
fn main() -> i32 {
    let point = Point { x: 42 };
    point.value()
}

References

• Methods require receiver syntax