Suggest class name after class_name based on script file name

[me2beats]

Describe the project you are working on

Editor plugins (gdscript)

Describe the problem or limitation you are having in your project

When creating custom classes using class_name I almost always give them a name that is similar to their scripts file name.
Precisely speaking, I first come up with the class name say MyClass then I create a script my_class.gd and write there class_name MyClass.
Doing this often can be a bit annoying considering this could be automated.

Describe the feature / enhancement and how it helps to overcome the problem or limitation

The idea is use autocompletion for that.

Describe how your proposal will work, with code, pseudo-code, mock-ups, and/or diagrams

When a script my_class.gd is created, I just could type cla and then autocompletion could appear with the custom class name based on the script name, that is class_name MyClass could be suggested in this case.

If this enhancement will not be used often, can it be worked around with a few lines of script?

Well, you just could write class name manually every time, or you could somehow copy-paste script file name and then change it to PascalCase. But this is not convinient.

Is there a reason why this should be core and not an add-on in the asset library?

Solving the problem using autocompletion with a plugin (al least with gdscript one) is not available now, because there is no API for working with autompletion.

But I can see some options of how to solve it:

• a plugin that adds class_name MyClass line to current script; this would be hacky due to lack of exposed ScriptEditor API (for example this one)
• a plugin that creates a script by class name (it opens a popup where you specify the class name MyClass, and when confirmed, it creates a script in the folder selected in the filesystem dock, with name my_class.gd and adds class_name MyClass line there); this could be fine, but this may be inconvenient / not enough if you have already created a script and only then decided to make it a custom class

However despite the possibility of creating a plugin that solve the problem, I find it useful to have this in core.

[Xrayez]

The engine has snake_case to PascalCase methods to help implementing this proposal: #719.

[dumenglume]

Would love to see this added (if it isn't implemented somewhere already). I can't actually think of any downside to implementing this. Folks who don't want class names to automatically be added can just leave the field blank.

[tetrapod00]

This is a good idea, but IMO better overall UX would be to not require typing the name at all. The Create Script window could have another checkbox/toggle to automatically create a class name (or [GlobalClass] in C#). If the Named class checkbox is checked, this script would be created with the first line class_name NewScript extends Node.

[Calinou]

There used to be a class name option in the script creation dialog, but it was removed in 4.2 as it was a read-only field that was always N/A when using GDScript: