Radon Enhancement Proposals

[Almas-Ali]

Discuss any ideas that you think it will make Radon more simple to use, ask here.

[Almas-Ali]

We have completed our first REP-1 (#38). 🎉

[Almas-Ali]

Hey @angelcaru, as you have contributed BuiltInClass, BuiltInInstance and some other stuff for supporting OOP by REP-2 (#49), can you tell us a bit details about your implementation and thought process? How can we add our own classes?

I am asking here so everyone will find it helpful, today and tomorrow.

[Almas-Ali]

Will be Ok, as long as it works.

[angelcaru]

#71

[angelcaru]

This would be the PoC rewritten with the new decorator:

# The way you do it is by deriving the `BuiltInObject` class like this:
class MyEpicClass(BuiltInObject):
    @operator("__constructor__")
    @check([Value]) # In operators, you use @check instead of @args. 
    def constructor(self, arg):
        res = RTResult()
        self.value = args[0].value # Since Python is such a dynamic language, you can just store attributes in `self`
        # However, they will be hidden to Radon code, since they are not in any symbol table
        # If you wanted to make it public, you would do `self.symbol_table.set("value", args[0].value)`

        # The constructor doesn't have to return anything
        return res.success(None)

    @args(["arg"]) # You need to use @args as well as @method here. But if you forget, there are `assert`s reminding you.
    @method
    def method(ctx): # Use the @method decorator to define methods. The name in Radon is the same as the name in Python
        # Use `ctx` to access parameters the same way you would in a BuiltInFunction
        # In fact, this IS a BuiltInFunction. Just a really well hidden one @ builtin_classes.py:61:39
        res = RTResult()
        # `this` is passed as a variable just like in Radon
        self = ctx.symbol_table.get("this")
        arg = ctx.symbol_table.get("arg")
        print(self.value)
        self.value = arg
        return res.success(Number.null)

# Add built-in classes to global symbol table just like for BuiltInFunction
global_symbol_table.set("MyEpicClass", BuiltInClass("MyEpicClass", MyEpicClass))

[Almas-Ali]

Syntax looks more cleaner now. 👍🏻

[Almas-Ali]

You should add some magic methods as well for example.

[Almas-Ali]

REP-7 (#65) completed. 🎉

[Almas-Ali]

REP-5 (#85) completed. 🎉

[Almas-Ali]

REP-8 (#110) is introduced and fulfilled less than an hour. 🎉

[Almas-Ali]

We have successfully completed REP-6 (#83).🎉