Typealias with a custom constructor

General Usage
1

Is there a way to create a type alias with a custom constructor?

FloatyMcFloatFace = Float64
FloatyMcFloatFace(x) = new(x+1)
2

No. Aliases are just another name for exactly the same type, so they can’t have separate methods.

1 Like
3

Is there a good way to have a custom type that automatically inherits all the methods of the “aliased” type? I would like to have a custom type that has all the properties and functions of a Matrix but has custom show and constructors.

4

You have to implement some methods and make your type a subtype of AbstractMatrix: Interfaces · The Julia Language

5

I was trying to avoid that. Matrix type is fairly well documented but for a lot of types that would mean run the code and implement the method from the error stack trace. I need a catch all :slight_smile:

6

https://docs.juliahub.com/Lazy/mi7Ul/0.15.0/autodocs/#Lazy.@forward-Tuple{Any,Any}

could help but you can’t avoid doing:

7

Lazy.@forward looks great. Thanks!