How to get nvim-cmp to open docs?

Plugins
1

Hi, I have the nvim-cmp package installed and I want to bind a keymap to show me the docs of the function my cursor is hovering over currently. For example, let’s take this rust code:

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image814×145 27.7 KB

I want to be able to just hover over the split() function and press a keybind like “” to open up the documentation for the function. I looked at the options for cmp and I saw that there was a cmp.mapping.open_docs() function, but when I set my keybind to it, it did nothing. I positive this is possible because I saw someone do it, but is there anything I might be doing wrong here?

Here are my mappings:

settings.mapping = {
  "<C-Space>" = "cmp.mapping.complete()";
  "<C-d>" = "cmp.mapping.scroll_docs(-4)";
  "<C-e>" = "cmp.mapping.close()";
  "<C-f>" = "cmp.mapping.scroll_docs(4)";
  "<C-whatever>" = "cmp.mapping.open_docs()";
  "<CR>" = "cmp.mapping.confirm({ select = true })";
  "<S-Tab>" = "cmp.mapping(cmp.mapping.select_prev_item(), {'i', 's'})";
  "<Tab>" = "cmp.mapping(cmp.mapping.select_next_item(), {'i', 's'})";
};

I am using nixvim, but that shouldn’t matter for this.

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2

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image1084×461 112 KB

This is what I want to see when I type the keybind. Replying because I can’t put more than one embed in my post :sob:

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