VoidVim/lua/config/plugins/rustaceanvim.lua

local navic = require("nvim-navic")

vim.g.rustaceanvim = {
  tools = {
    autoSetHints = true,
    inlay_hints = {
      show_parameter_hints = true,
      parameter_hints_prefix = "in: ",       -- "<- "
      other_hints_prefix = "out: "           -- "=> "
    }
  },
  server = {
    on_attach = function(client, bufnr)
      navic.attach(client, bufnr)      
    end,
    settings = {
      ['rust-analyzer'] = {
        assist = {
          importEnforceGranularity = true,
          importPrefix = "create"
        },
        cargo = { allFeatures = true },
        checkOnSave = {
          -- default: `cargo check`
          command = "clippy",
          allFeatures = true
        },
        inlayHints = {
          lifetimeElisionHints = {
            enable = true,
            useParameterNames = true
          }
        }
      }
    }
  }
}