Use new parser form types

[datwaft]

As the default parser for Fennel has changed the form_types are different now.

See alexmozaidze/tree-sitter-fennel for the new default parser for Fennel.

I tested these changes with the following test file:

(+ 1 2)

(+ (+ 1 2) 3 4 (- 5 6) (/ 10 (+ 20 3)))

[1 2 [3] [4 5] 6]

(fn salute []
  (print "Hello, World!"))

(macro some-macro []
  (let [v "Hello, World!"]
    `(print ,v)))

#(print "Hello, World")

(macrodebug '(print "Hello, World!"))

I applied all the operations and they seem to work perfectly.

A fun fact is that the reader macros are moved with the slurp and barf operations, which in my opinion is desirable:

#(print "Hello, World!")
; '>('
print #("Hello, World!")

The only issues I am having right now are with the ( and ) movement operations, which if used after reaching the end show the following error:

E5108: Error executing lua: ...vim-paredit-fennel/lua/nvim-paredit-fennel/extension.lua:15: attempt to index local 'current_node' (a nil value)
stack traceback:
        ...vim-paredit-fennel/lua/nvim-paredit-fennel/extension.lua:15: in function 'find_next_parent_form'
        ...vim-paredit-fennel/lua/nvim-paredit-fennel/extension.lua:33: in function 'get_node_root'
        .../nvim/lazy/nvim-paredit/lua/nvim-paredit/api/motions.lua:195: in function 'move_to_parent_form_edge'
        .../nvim/lazy/nvim-paredit/lua/nvim-paredit/api/motions.lua:231: in function <.../nvim/lazy/nvim-paredit/lua/nvim-paredit/api/motions.lua:230

And also with the paredit.api.raise_form operation, which fails every time with the following error:

E5108: Error executing lua: ...vim-paredit-fennel/lua/nvim-paredit-fennel/extension.lua:15: attempt to index local 'current_node' (a nil value)
stack traceback:
        ...vim-paredit-fennel/lua/nvim-paredit-fennel/extension.lua:15: in function 'find_next_parent_form'
        ...vim-paredit-fennel/lua/nvim-paredit-fennel/extension.lua:33: in function 'get_node_root'
        .../nvim/lazy/nvim-paredit/lua/nvim-paredit/api/motions.lua:195: in function 'move_to_parent_form_edge'
        .../nvim/lazy/nvim-paredit/lua/nvim-paredit/api/motions.lua:231: in function <.../nvim/lazy/nvim-paredit/lua/nvim-paredit/api/motions.lua:230

Do you know how this could be fixed? I don't know enough about your plugin to fix it confidently.

[datwaft]

BTW, here are the test results:

[datwaft]

I added a commit using the get_form_edges from the Clojure implementation.

As you can see in the following snippet (from here) the Fennel grammar now includes the open and close fields so we can use the same implementation.

list: $ => seq(
  field('open', '('),
  optional($._list_content),
  field('close', ')'),
),

Note

BTW, this doesn't fix the errors I told you about.

[julienvincent]

Thanks I'll try take a look at this as soon as I get a chance.