zsh: use completions for command X when I type command Y

Question

In zsh, I have a function called g which acts like this:

• with no arguments, call git status
• with one or more arguments, delegate

Answer 1

The documentation for compdef says this:

The function compdef can be used to associate existing completion functions with new commands. For example,

compdef _pids foo

But adapting it (_git is the usual completion function for git) did not produce a working result for me (even after _git had been autoloaded):

compdef _git g

I was able to get it to work via _dispatch though:

compdef '_dispatch git git' g