coc.nvim 插件，放在 .vim/coc-extensions 目录下即可使用。

右侧打开窗口显示执行代码的结果，保存后自动重新执行。

• 使用异步 job 执行
• 支持 vim 和 neovim
• 错误高亮提示
• 状态栏支持

stderr 和 stdout 出现顺序可能会错，暂时不支持 ansi 解析，可通过使用 strip-ansi 模块去掉。

const {Uri, commands, workspace, window, Mutex} = require('coc.nvim') const path = require('path')  const programMap = {   javascript: 'node',   typescript: 'ts-node',   python: 'python' } let global_id = 0  exports.activate = async context => {   const {nvim, cwd} = workspace   // bufnr => Task   const taskMap = new Map()    let statusItem = window.createStatusBarItem(0, {progress: true})   context.subscriptions.push(statusItem)    const executeFile = async (doc, create) => {     let uri = doc.uri     let relPath = path.relative(cwd, Uri.parse(uri).fsPath)     let bufname = `__coc_execute_${doc.bufnr}__`     let task = taskMap.get(doc.bufnr)     if (task) {       task.dispose()       taskMap.delete(doc.bufnr)     }     statusItem.hide()     let winnr = await nvim.call('bufwinnr', [bufname])     if (winnr == -1 && !create) return     if (winnr == -1) {       nvim.pauseNotification()       nvim.command(`belowright vs ${bufname}`)       nvim.command(`setl buftype=nofile`)       nvim.command(`setl conceallevel=0`)       nvim.command(`setl norelativenumber`)       await nvim.resumeNotification()       winnr = await nvim.call('winnr', [])       await nvim.command('wincmd p')     } else {       // clear buffer       await nvim.command(`silent call deletebufline('${bufname}', 1, '$')`)     }     let bufId = await nvim.call('bufnr', [bufname])     let buf = nvim.createBuffer(bufId)     let t = workspace.createTask(`execute-${global_id}`)     global_id = global_id + 1     let cmd = programMap[doc.filetype]     // start with options     let succeed = await t.start({cwd, cmd, args: [relPath]})     if (!succeed) {       window.showErrorMessage(`Command failed to start: ${cmd} ${relPath}`)       return     }     statusItem.text = `${cmd} ${relPath}`     statusItem.show()     taskMap.set(doc.bufnr, t)     t.onExit(code => {       statusItem.hide()       taskMap.delete(doc.bufnr)       if (code != 0) {         window.showErrorMessage(`${cmd} exit with code: ${code}`)       }     })     let empty = true     let appendLines = async lines => {       if (empty) {         empty = false         await buf.setLines(lines, {start: 0, end: -1, strictIndexing: false})       } else {         await nvim.call('appendbufline', [buf.id, '$', lines])       }     }     let mutex = new Mutex()     t.onStderr(async lines => {       let replace = empty       let release = await mutex.acquire()       try {         let len = await buf.length         await appendLines(lines)         await buf.highlightRanges('coc-execute', 'WarningMsg', [{           start: {line: (replace ? len - 1 : len), character: 0},           end: {line: len + lines.length, character: 0}         }])         if (workspace.isVim) nvim.command('redraw', true)       } catch (e) {         window.showErrorMessage(e.message)       }       release()     })     t.onStdout(async lines => {       let release = await mutex.acquire()       try {         await appendLines(lines)         if (workspace.isVim) nvim.command('redraw', true)       } catch (e) {         window.showErrorMessage(e.message)       }       release()     })   }    const execute = async () => {     let doc = await workspace.document     let program = programMap[doc.filetype]     if (!program) {       window.showErrorMessage(`filetype not supported`)       return     }     await executeFile(doc, true)   }   context.subscriptions.push(workspace.onDidSaveTextDocument(async e => {     let doc = workspace.getDocument(e.uri)     if (!taskMap.has(doc.bufnr)) return     await executeFile(doc, false)   }))    context.subscriptions.push({     dispose: () => {       for (let task of taskMap.values()) {         task.dispose()       }     }   })    context.subscriptions.push(     commands.registerCommand('execute.currentFile', execute)   ) } 

仅供参考