Mercurial > vim
comparison runtime/doc/if_lua.txt @ 21006:ae185f35e256 v8.2.1054
patch 8.2.1054: not so easy to pass a lua function to Vim
Commit: https://github.com/vim/vim/commit/801ab069341c8652680d63c174530fd4feb2911e
Author: Bram Moolenaar <Bram@vim.org>
Date: Thu Jun 25 19:27:56 2020 +0200
patch 8.2.1054: not so easy to pass a lua function to Vim
Problem: Not so easy to pass a lua function to Vim.
Solution: Convert a Lua function and closure to a Vim funcref. (Prabir
Shrestha, closes #6246)
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Thu, 25 Jun 2020 19:30:21 +0200 |
| parents | 74e3316c1d5a |
| children | 08e284594211 |
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| 21005:3f0abea9bed2 | 21006:ae185f35e256 |
|---|---|
| 331 :lua d = vim.eval('mydict'); d.len = vim.funcref('Mylen') | 331 :lua d = vim.eval('mydict'); d.len = vim.funcref('Mylen') |
| 332 :echo mydict.len() | 332 :echo mydict.len() |
| 333 :lua l = d.len -- assign d as 'self' | 333 :lua l = d.len -- assign d as 'self' |
| 334 :lua print(l()) | 334 :lua print(l()) |
| 335 < | 335 < |
| 336 Lua functions and closures are automatically converted to a Vim |Funcref| and | |
| 337 can be accessed in Vim scripts. Example: | |
| 338 > | |
| 339 lua <<EOF | |
| 340 vim.fn.timer_start(1000, function(timer) | |
| 341 print('timer callback') | |
| 342 end) | |
| 343 EOF | |
| 336 | 344 |
| 337 ============================================================================== | 345 ============================================================================== |
| 338 7. Buffer userdata *lua-buffer* | 346 7. Buffer userdata *lua-buffer* |
| 339 | 347 |
| 340 Buffer userdata represent vim buffers. A buffer userdata "b" has the following | 348 Buffer userdata represent vim buffers. A buffer userdata "b" has the following |