Course of Raku / Objects, I/O, and exceptions / Classes and objects / Inheritance / Exercises / A shape and a square

Solution: A shape and a square

Here is a possible solution to the task.

Code

class Shape {
    method name {
        'shape';
    }
    method describe {
        'I am a ' ~ self.name;
    }
}

class Square is Shape {
    method name {
        'square';
    }
}

say Square.new.describe;

🦋 You can find the source code in the file shape-and-square.raku.

Output

I am a square

Comments

1. Square inherits describe from Shape and overrides only name.

2. describe calls self.name, which picks up the overriding name, so the description says square rather than shape.

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