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---@brief
---
---https://github.com/rescript-lang/rescript-vscode/tree/master/server
--
-- ReScript Language Server can be installed via npm:
-- ```sh
-- npm install -g @rescript/language-server
-- ```
--
-- See [package.json](https://github.com/rescript-lang/rescript-vscode/blob/master/package.json#L139)
-- for init_options supported.
--
-- For example, in order to disable the `inlayHints` option:
-- ```lua
-- vim.lsp.config('rescriptls', {
--   settings = {
--     rescript = {
--       settings = {
--         inlayHints = { enable = false },
--       },
--     },
--   })
-- }
-- ```
return {
  cmd = { 'rescript-language-server', '--stdio' },
  filetypes = { 'rescript' },
  root_markers = { 'bsconfig.json', 'rescript.json', '.git' },
  settings = {},
  init_options = {
    extensionConfiguration = {
      -- buggy, prompts much too often, superseded by incrementalTypechecking, below
      askToStartBuild = false,

      allowBuiltInFormatter = true, -- lower latency
      incrementalTypechecking = { -- removes the need for external build process
        enabled = true,
        acrossFiles = true,
      },
      cache = { projectConfig = { enabled = true } }, -- speed up latency dramatically
      codeLens = true,
      inlayHints = { enable = true },
    },
  },
}