attempt to call global 'snippet' (a nil value)

[winkee01]

Hi, I am trying to load some custom lua written snippets, but it pops me an error saying :
attempt to call global 'snippet' (a nil value)

config for luasnip

local luasnip = require("luasnip")

require("luasnip/loaders/from_lua").load({ paths = {'./snippets-lua'} }). -- this line causes error, if comment out, no error.
require("luasnip/loaders/from_vscode").lazy_load()
require("luasnip/loaders/from_vscode").lazy_load({paths = { './snippets-vscode' }})
require("luasnip/loaders/from_snipmate").lazy_load()
require("luasnip/loaders/from_snipmate").lazy_load({paths = { './snippets-snipmate' }})

luasnip.config.set_config({
  history = true,
  updateevents = "TextChanged,TextChangedI",
})

my file structure

├── lua/
│   ├── basic/
│   ├── lsp/
│   ├── utils/
│   ├── basic.lua
│   ├── colorscheme.lua
│   ├── globals.lua
│   ├── icons.lua
│   ├── keybindings.lua
│   └── plugins.lua
├── plugin/
├── snippets-lua/
│   └── vim.lua
├── snippets-snipmate/
│   └── c.snippets
├── snippets-vscode/
│   └── package.json
└── init.lua

[L3MON4D3]

Could you show ./snippets-lua? It's probably just that you're calling snippet instead of s(which is the default in these files, but can be overriden via the snip_env-setting)

[winkee01]

Sorry, it's my fault, I fixed the problem. But seems snip_env does not work for me.

here is my config, luasnip.lua

local luasnip = require('luasnip')
local types = require('luasnip.util.types')
local extras = require('luasnip.extras')
local fmt = require('luasnip.extras.fmt').fmt

luasnip.config.set_config({
  history = false,
  updateevents = "TextChanged,TextChangedI",
  snip_env = {
    fmt = fmt,
    m = extras.match,
    t = luasnip.text_node,
    f = luasnip.function_node,
    c = luasnip.choice_node,
    d = luasnip.dynamic_node,
    i = luasnip.insert_node,
    l = extras.lamda,
    snippet = luasnip.snippet,
  },
})

require("luasnip/loaders/from_lua").lazy_load()
require("luasnip/loaders/from_lua").lazy_load({ paths = {'./snippets-lua'} })

local M = {}

M.keymaps = function(cmp)
  return {
    ["<Tab>"] = cmp.mapping(function(fallback)
      if cmp.visible() then
        cmp.select_next_item()
      else
        fallback()
      end
    end, {
      "i",
      "s",
      "c",
    }),
  }
end

return M

and vim.lua

return {
  snippet(
    {
      trig = 'eof',
      name = 'Create Heredoc',
      dscr = 'Create a heredoc',
    },
    fmt(
      [[
   EOF << lua
   {}
   EOF
   ]],
      { i(1) }
    )
  ),
}

If I change vim.lua to

return {
  s(
    {
      trig = 'eof',
      name = 'Create Heredoc',
      dscr = 'Create a heredoc',
    },
    require('luasnip.extras.fmt').fmt(
      [[
   EOF << lua
   {}
   EOF
   ]],
      { i(1) }
    )
  ),
}

error will disappear.