Immutable value

[hungthai1401]

Dear @WendellAdriel , @chrisjumptwentyfour ,
This PR instroduces two new features:

• Immutable variable
• Cloneable variable

Sometime, I need immutable variable for the business logic so I think they are very helpful.
Greetings and thanks,
Thai

[WendellAdriel]

@hungthai1401 I like the idea, but I think the cloneable is not needed here.
What would be the diff between doing

$var->clone();
// or
clone $var;

I don't see the benefit of having the cloneable here TBH.

On the Immutable, I think that's an amazing addition but I would rather have that as a Trait where it would add a property:

protected bool $immutable;

And a method immutable that would set this property as true and then in the StrictusTyping trait you would add the behavior.

The issue with creating the new ImmutableStrictus is that every time something gets added we need to add it to both Strictus and ImmutableStrictus and I don't want that.

[hungthai1401]

@WendellAdriel I think it's better if we can clone in fluent way instead of use clone keyword

[WendellAdriel]

@WendellAdriel I think it's better if we can clone in fluent way instead of use clone keyword

I don't see the benefit here, it would be the same, it won't have any additional benefit so let's remove this

[hungthai1401]

@WendellAdriel okay, about second, could you explain more?

[WendellAdriel]

@WendellAdriel okay, about second, could you explain more?

@hungthai1401
Put the immutable behaviour already in the StrictusTyping trait that's already used by all the classes.

We don't want to have duplicated logic in Strictus and ImmutableStrictus. The final goal is that all types would have a method ->immutable() that could be called when instantiating a variable:

$myString = Strictus::string('Hello, world!')->immutable();

Calling this would set a property $immutable in the object as true and when that's true, if trying to re-assign the value would throw the exception you created.

[hungthai1401]

@WendellAdriel Thanks for your help. I have reverted Cloneable and add Immutable

[WendellAdriel]

@hungthai1401 amazing!
Thank you so much for this contribution!
I was thinking of adding immutable variables already and your help with that was great!!!
🔥 💪

[hungthai1401]

@WendellAdriel You are welcome, my bro. I am very happy if my contribution is helpful. Do you have any new ideas?

[WendellAdriel]

@hungthai1401 it is helpful!!! 💪
We are open to ideas, we want to add support for union types, but we still need to discuss how we will approach that

[hungthai1401]

@WendellAdriel it's an amazing idea. I will follow your discussion