code: function getCompFilesInfoByAppType(filePathNoExtname, options) {
      let {appType, wx2swan, componentExtname} = options;
  
      // sfc
      let filePath = `${filePathNoExtname}.${componentExtname}`;
      if (isCompFileExists(filePath, options.compileContext)) {
          return {
              missingMustFileExtnames: [],
              fileExtnameMap: {
                  [componentExtname]: filePath
              }
          };
      }
  
      let result = getCompOriginFileInfoByType(appType, filePathNoExtname, options);
  
      if (!result.missingMustFileExtnames.length) {
          return result;
      }
  
      if (appType === 'swan' && wx2swan) {
          result = getCompOriginFileInfoByType('wx2swan', filePathNoExtname, options);
  
          if (!result.missingMustFileExtnames.length) {
              return result;
          }
      }
  
      result.missingMustFileExtnames = [componentExtname];
      return result;
  }
docs: 根据 appType 获取对应的组件信息
  
  @param {string} filePathNoExtname 无后缀名的文件路径
  @param {Object} options options
  @return {Object}
  {
  component 类型
  componentType,
  // 对应原生缺失的必要文件的后缀名
  missingMustFileExtnames,
  // 后缀名: 文件完整路径 {extname: fullPath}
  fileExtnameMap
  }