VIM custom function definition / location

Question

Hi all, I have problem with basic VIM function:(I tried googling and cannot find the answer)

1. How can I list all custom function.(I did :function and cannot find my custom function)
2. How can I get the definition of the function in the custom function list (or where they are stored).

Thank you for your help

Answer 1

Suppose your function is called MyFunction, then the following works for me:

:verbose function My<tab>

(for <tab> I mean actually press tab)

if your function is loaded in vim it should show up there and you can see where it was defined.

Answer 2

If you cannot find your custom function in output of function without arguments, then it is probably an anonymous function declared like that:

let g:dict={}
function g:dict.f()
    echo "here"
endfunction

In this case the only way to get its definition is to use function g:dict.f (prepend verbose as @skeept suggested to know where it is defined). Note that you cannot use tab completion here and you cannot get a list of all anonymous functions.

Instead of g:dict.f in function g:dict.f you can use function {N}, where N is any expression that returns anonymous function number, for example function {substitute(string(g:dict.f), '^.*\(\d\+\).*$', '\1', '')}. Or just function {242} if all you get is a error like that: Error detected while processing function 243..242: and want to see the definition of function 242.