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reactordev 4 days ago [ - ]

Static method inheritance is one thing. Member method inheritance (or lack there of) makes it long in the tooth to work with if you want to represent covariant classes that share methods.

pansa2 4 days ago [ - ]

Wren does have instance method inheritance. It's implemented differently from most scripting languages, though. The implementation is more like a statically-typed language, for performance reasons:

https://wren.io/performance.html#copy-down-inheritance

reactordev 3 days ago [ - ]

So it does have:

    class A {
      construct new () {}
      thing(obj) {
         …
      }
    }

    class B is A {
       construct new () {}
    }

    B.new().thing(obj)

I’ll need to test this as this is what I want from my scripting language. If this works than wren will replace my Lua janky scripting.

pansa2 3 days ago [ - ]

Yes:

https://wren.io/try/?code=MYGwhgzhAECC0G8BQ1rAPYDsIBcBOArsDt...

reactordev 3 days ago [ - ]

Trying to update a field from a subclass and print the results doesn’t work.

    class A {
      name {
        _name
      }
      name=(value){
        _name=value
      }
      construct new () {
        _name = "hello"
      }
      thing() {
        System.print(name)
      }
    }

    class B is A {
      construct new () {}
      update(name){
        super.name = name
        return this
      }
    }

    var b = B.new()
    b.update("world").thing()

If you change System.print(name) to System.print(_name) it works but it doesn’t when using the getter. You get null when System.print(name) is called.

Same if you use this.name

pansa2 3 days ago [ - ]

Your `name` getter isn't working properly. Weirdly, Wren's implicit returns only work for functions written on a single line.

The getter either needs to be (exactly) `name { _name }` or it needs to explicitly `return _name`.

https://wren.io/functions.html#returning-values

reactordev 2 days ago [ - ]

That was it. Nuance in the “no new line after…” parsing. Thanks, it works now. Awesome!