Cannot extend Rectangle?

[rcarmo]

• Version: 2.6.7
• macOS: 11.4

So I'm trying to extend Rectangle:

Rectangle.prototype.pad = () => {
    return new Rectangle(
        this.x + PADDING/2, 
        this.y + PADDING/2,
        this.width - PADDING,
        this.height - PADDING
    );
};

... and I get ReferenceError: Can't find variable: Rectangle (Line:Column)

Since I can hack Screen, shouldn't I be able to do the same for Rectangle, so that I can take a Window.frame and manipulate it directly like this?

[kasper]

Rectangle is NSRect (https://developer.apple.com/documentation/foundation/nsrect) under the hood. It’s a struct and not an object, so that’s the reason you get the error. I’m surprised nobody else has noticed this from documentation before. 😄 I’ll fix that.

[rcarmo]

Ah, ok. So I can't override it and do nice things like I do for Window and Screen. Hmmm.

[kasper]

@rcarmo You can of course pass it to functions, in a more functional approach.

const pad = (rect) => ({
  ...rect,
  x: rect.x + PADDING,
});

[rcarmo]

Yeah, I wanted to make it smarter. Am now using something called a Frame, which can .displace, .pad and .snap, so I can do neat stuff like foo.snap(screen, WEST).pad()

[kasper]

I’ve clarified the documentation in this regard.