Suspicious switch statement Usage (SSU)

Description:

SSU detects if a method contains a switch on a field of the containing class. A field must be of an integral type; it may be accessed either directly or via an accessor method. Such switch statements should often be replaced with the usage of several subclasses.

Incorrect:

class Node {
    private int kind;
    
    void print() {
        switch (kind) {
        case ADD:
            ...
        case SUB:
            ...
        }
    }
}

Correct:

abstract class Node {
    internal abstract void print();
}

class AddNode : Node {
    internal override void print() {
        ...
    }
}

class SubNode : Node {
    internal override void print() {
        ...
    }
}

Refactoring:

• Replace Conditional with Polymorphism