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self

The self keyword refers to the current type or self receiver. It is commonly used as the receiver type in method signatures and to refer to the implementing type from within its own members.

Syntax & Example​

interface Comparable {
    fn compare(other: &Self): i32;
}

struct Order(value: i64): Comparable {
    pub fn compare(other: &Order): i32 {
        if self.value < other.value { return -1; }
        if self.value > other.value { return 1; }
        return 0;
    }
}

Use Cases​

  • Naming the implementing type generically (as Self) in interface contracts.
  • Referring to the current receiver in method bodies.
  • Writing methods that return or accept values of the current type.