export of a public variable crashes the compiler

[cyberthirst]

Version Information

• vyper Version (output of vyper --version): 0.4.1b2+commit.25ea3bb95
• OS: linux
• Python Version (output of python --version): Python 3.11.10

What's your issue about?

i: public(uint256)

exports: self.i

Error compiling: tests/custom/test.vy
AttributeError: 'NoneType' object has no attribute '_metadata'

During handling of the above exception, another exception occurred:

vyper.exceptions.CompilerPanic: unhandled exception 'NoneType' object has no attribute '_metadata'

  contract "tests/custom/test.vy:3", line 3:0 
       2
  ---> 3 exports: self.i
  -------^


This is an unhandled internal compiler error. Please create an issue on Github to notify the developers!
https://github.com/vyperlang/vyper/issues/new?template=bug.md

[Charles Cooper]

the error message should look something like this:

Error compiling: tmp/main.vy
vyper.exceptions.StructureException: invalid export of a value

  contract "tmp/main.vy:10", line 10:9 
        9
  ---> 10 exports: self.i
  -----------------^
       11

  (hint: exports should look like <module>.<function | interface>)