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The features I've always dreamed about from an AST aware editor was shell-like functionality where operations to rename, move, copy, create, etc were akin to file manipulations done on the command line. At one point I was thinking about the possibility of FUSE-ifying(https://en.wikipedia.org/wiki/Filesystem_in_Userspace) some code so that a normal shell could be used. Any chance of shell-like functionality from treefrog?

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Interesting! Yes, one of the main things I'm doing at the moment is thinking of and prototyping new commands and ways to represent code. I like the shell idea.

So things like classes and functions would be represented as files within a dir representing the actual file?

Yeah! I think the difficult part of this idea though is maintaining/moving the necessary dependencies, or at least keeping track of them to warn that they're no longer satisfied.

In many cases it probably requires awareness of packaging in a way that normal AST manipulation does not, at least to be particularly useful it would.

Right - this is where I would use an LSP server

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