Are there really no plugins for that? In Doom Emacs "cia" deletes an argument normally, which I assume is done by an evil mode plugin, so I thought there was one for Vim as well.
Various plugins can do it on a per language basis, but tree sitter is a nice abstraction that allows such commands to be done with a simple mapping - then tree sitter (with a per-language plugin) will parse to the same ASTish thing, so any language that has function arguments will have the same commands working the same way.
I'm actually kind of excited about tree-sitter - it's not a neovim feature, it's an independent project that can be used a lot of places. I think the effect will be similar to how LSP changed the landscape from "every editor does some parts of handling language X well, but the parts each editor does are different from each other" to "all the editors get this feature when the language server does", just for syntax highlighting and syntax aware edition.
Thank you! I tried this out on my setup, but was disappointed when it didn’t work. I’m new to evil and I’m constantly impressed with how big the ecosystem is!
There are, but they usually rely on regex or other brittle approaches, making it difficult to write well. And currently you'll need to use different plugins for different languages (e.g., jedi for python).
Treesitter builds the AST, making it easier to create robust text objects. And it provides a unified interface for a bunch of different languages, meaning that I don't need to have 10 different plugins, one for each language, just to get access to text objects.
