LYR-SEM0008

this outside a method

error · spec 05-interfaces

The keyword this appears where there is no receiver: in a free function or in a module-level initializer.

Explanation

this is the receiver of a method; only the members of a struct, class, enum, interface or extend block have one. A free function takes what it works on as a parameter.

Move the function into the type, or pass the value as a parameter.

Wrong

fn main(): void {
    let _ = this;
}

Right

struct Point {
    x: int,
    fn getX(): int { return this.x; }
}

fn main(): void {
    let _ = Point { x = 1 }.getX();
}