@antmjs/vantui/lib/wxs/bem.js

一套适用于Taro3及React的vantui组件库

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
var _typeof3 = require("@babel/runtime/helpers/typeof");
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports._bem = _bem;
var _typeof2 = _interopRequireDefault(require("@babel/runtime/helpers/typeof"));
var array = _interopRequireWildcard(require("./array"));
var object = _interopRequireWildcard(require("./object"));
function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }
function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof3(obj) !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
var PREFIX = 'van-';
function join(name, mods) {
  name = PREFIX + name;
  mods = mods.map(function (mod) {
    return name + '--' + mod;
  });
  mods.unshift(name);
  return mods.join(' ');
}
function traversing(mods, conf) {
  if (!conf) {
    return;
  }

  // 加前缀
  if (typeof conf === 'string' || typeof conf === 'number') {
    mods.push(conf);
  } else if (array.isArray(conf)) {
    // 加前缀
    conf.forEach(function (item) {
      traversing(mods, item);
    });
  } else if ((0, _typeof2.default)(conf) === 'object') {
    // 加属性
    object.keys(conf).forEach(function (key) {
      conf[key] && mods.push(key);
    });
  }
}
function _bem(name, conf) {
  var mods = [];
  traversing(mods, conf);
  return join(name, mods);
}