perf: use faster 0.11 vim.validate (#868)

* perf: use faster 0.11 vim.validate

* remove vim.fn.has

* feat: check for nvim 0.11 and benchmark

---------

Co-authored-by: iguanacucumber <[email protected]>
Co-authored-by: Liam Dyer <[email protected]>

lua/blink/cmp/config/keymap.lua

@@ -168,7 +168,7 @@ function keymap.validate(config)
       }
     end
   end
-  vim.validate(validation_schema)
+  require('blink.cmp.config.utils')._validate(validation_schema)
 end
 
 return keymap

lua/blink/cmp/config/utils.lua

@@ -1,12 +1,30 @@
 local utils = {}
 
----@param path string The path to the field being validated
----@param tbl table The table to validate
----@param source table The original table that we're validating against
----@see vim.validate
+-- Code taken from @MariaSolOs in a indent-blankline.nvim PR:
+-- https://github.com/lukas-reineke/indent-blankline.nvim/pull/934/files#diff-09ebcaa8c75cd1e92d25640e377ab261cfecaf8351c9689173fd36c2d0c23d94R16
+-- Saves a whopping 20% compared to vim.validate (0.8ms -> 0.64ms)
+
+--- Use the faster validate version if available
+--- @param spec table<string, {[1]:any, [2]:function|string, [3]:string|true|nil}>
+--- NOTE: We disable some Lua diagnostics here since lua_ls isn't smart enough to
+--- realize that we're using an overloaded function.
+function utils._validate(spec)
+  if vim.fn.has('nvim-0.11') == 0 then return vim.validate(spec) end
+  for key, key_spec in pairs(spec) do
+    local message = type(key_spec[3]) == 'string' and key_spec[3] or nil --[[@as string?]]
+    local optional = type(key_spec[3]) == 'boolean' and key_spec[3] or nil --[[@as boolean?]]
+    ---@diagnostic disable-next-line:param-type-mismatch, redundant-parameter
+    vim.validate(key, key_spec[1], key_spec[2], optional, message)
+  end
+end
+
+--- @param path string The path to the field being validated
+--- @param tbl table The table to validate
+--- @param source table The original table that we're validating against
+--- @see vim.validate
 function utils.validate(path, tbl, source)
   -- validate
-  local _, err = pcall(vim.validate, tbl)
+  local _, err = pcall(utils._validate, tbl)
   if err then error(path .. '.' .. err) end
 
   -- check for erroneous fields

lua/blink/cmp/sources/luasnip.lua

@@ -17,10 +17,10 @@ local defaults_config = {
 
 function source.new(opts)
   local config = vim.tbl_deep_extend('keep', opts or {}, defaults_config)
-  vim.validate({
+  require('blink.cmp.config.utils').validate('sources.providers.luasnip', {
     use_show_condition = { config.use_show_condition, 'boolean' },
     show_autosnippets = { config.show_autosnippets, 'boolean' },
-  })
+  }, config)
 
   local self = setmetatable({}, { __index = source })
   self.config = config

lua/blink/cmp/sources/path/init.lua

@@ -7,9 +7,8 @@
 --- @field get_cwd fun(context: blink.cmp.Context): string
 --- @field show_hidden_files_by_default boolean
 
-local regex = require('blink.cmp.sources.path.regex')
-
 --- @class blink.cmp.Source
+--- @field opts blink.cmp.PathOpts
 local path = {}
 
 function path.new(opts)
@@ -22,12 +21,12 @@ function path.new(opts)
     get_cwd = function(context) return vim.fn.expand(('#%d:p:h'):format(context.bufnr)) end,
     show_hidden_files_by_default = false,
   })
-  vim.validate({
+  require('blink.cmp.config.utils').validate('sources.providers.path', {
     trailing_slash = { opts.trailing_slash, 'boolean' },
     label_trailing_slash = { opts.label_trailing_slash, 'boolean' },
     get_cwd = { opts.get_cwd, 'function' },
     show_hidden_files_by_default = { opts.show_hidden_files_by_default, 'boolean' },
-  })
+  }, opts)
 
   self.opts = opts
   return self