_

nvim/lua/my/lsp.lua

@@ -0,0 +1,98 @@
+local lspconfig = require "lspconfig"
+
+local function on_attach(client, bufnr)
+  vim.api.nvim_buf_set_option(bufnr, "omnifunc", "v:lua.vim.lsp.omnifunc")
+  vim.api.nvim_buf_set_var(bufnr, "vcm_tab_complete", "omni")
+
+  local function command(name, command)
+    vim.api.nvim_buf_create_user_command(bufnr, name, command, {})
+  end
+
+  local function map(mode, lhs, rhs)
+    vim.keymap.set(mode, lhs, rhs, {
+      buffer = bufnr
+    })
+  end
+
+  local augroup_id = vim.api.nvim_create_augroup("LSPAttach", {
+    clear = false
+  })
+  local function autocmd(event, callback)
+    vim.api.nvim_create_autocmd(event, {
+      group = augroup_id,
+      buffer = bufnr,
+      callback = callback
+    })
+  end
+  vim.api.nvim_clear_autocmds({
+    buffer = bufnr,
+    group = augroup_id
+  })
+
+  command("References", function()
+    local function on_list(options)
+      vim.fn.setqflist({}, "r", options)
+      vim.api.nvim_command("cfirst")
+    end
+    vim.lsp.buf.references(nil, {
+      on_list = on_list
+    })
+  end)
+
+  map("n", "gD", vim.lsp.buf.declaration)
+  map("n", "gd", vim.lsp.buf.definition)
+  map("n", "K", vim.lsp.buf.hover)
+  map("n", "<C-k>", vim.lsp.buf.signature_help)
+  map("n", "<leader>lc", vim.lsp.buf.code_action)
+  map("n", "<leader>li", vim.lsp.buf.implementation)
+  map("n", "<leader>lr", vim.lsp.buf.rename)
+
+  autocmd("CursorHold", function()
+    vim.lsp.buf.document_highlight()
+    vim.diagnostic.open_float({
+      bufnr = bufnr
+    }, {
+      focus = false
+    })
+  end)
+  autocmd("CursorMoved", vim.lsp.buf.clear_references)
+end
+
+local settings = {
+  clangd = {
+    cmd = {"clangd", "--background-index", "--suggest-missing-includes", "--clang-tidy", "--header-insertion=iwyu"}
+  }
+}
+
+local lsp = {}
+
+function lsp.initialize()
+  vim.diagnostic.config({
+    float = {
+      focusable = false
+    }
+  })
+
+  for lss, lss_params in pairs(settings) do
+    local params = {
+      on_attach = on_attach,
+      handlers = {
+        ["textDocument/publishDiagnostics"] = vim.lsp.with(vim.lsp.diagnostic.on_publish_diagnostics, {
+          signs = false,
+          virtual_text = false,
+          underline = true
+        }),
+        ["textDocument/signatureHelp"] = vim.lsp.with(vim.lsp.handlers.signature_help, {
+          silent = true,
+          focusable = false
+        }),
+        ["textDocument/hover"] = vim.lsp.with(vim.lsp.handlers.hover, {
+          focusable = false
+        })
+      }
+    }
+    lspconfig[lss].setup(vim.tbl_deep_extend("force", params, lss_params))
+  end
+end
+
+return lsp