Instance function bug? (maybe)

[lucid skiff]

Either this is a bug or my bad code, but when trying to run :test() on the frame returned, it says it isn't a valid member of Frame. How do I fix this (note: it also doesn't appear in the code editor)

function funcs:createCanvas()
    local canvas = Instance.new("Frame")
    canvas.Size = UDim2.new(1,0,1,0)
    canvas.AnchorPoint = Vector2.new(.5,.5)
    canvas.Position = UDim2.new(.5,0,.5,0)
    canvas.Parent = game.Players.LocalPlayer.PlayerGui.AppGui
    function canvas:test()
        print("hi")
    end
    return canvas
end

Full code just includes local funcs = {} and return funcs at the top and bottom

[zenith pulsar]

wth is :test()

[lucid skiff]

just to test it and it didn't work

im just trying to add a function to the frame

because i want to add functions and also allow them to change frame properties from the same object

[flint garnet]

Because you can't add functions to Roblox classes

Or objects created from those classes

You need to wrap canvas in a table, then you can add functionality to that table.

[lucid skiff]

how do i wrap it in a table

[flint garnet]

Ayoo thats my bad, I been hella busy I thought someone else would have jumped in and helped with this

[flint garnet]

function funcs:createCanvas()
    local canvas = Instance.new("Frame")
    canvas.Size = UDim2.new(1,0,1,0)
    canvas.AnchorPoint = Vector2.new(.5,.5)
    canvas.Position = UDim2.new(.5,0,.5,0)
    canvas.Parent = game.Players.LocalPlayer.PlayerGui.AppGui

    local canvasObject = { Canvas = canvas }
    function canvasObject:test()
        print("hi")
    end
    return canvasObject
end

local myCanvas = funcs:createCanvas()
-- Accessing "canvas" instance from returned table
myCanvas.Canvas.Size = UDim2.fromScale(1, 1)
myCanvas:test()

You could setup some metatable trickery to index the canvas stored inside the table before indexing the table itself so you can kinda of just treat the table as the object itself