tt-mp/lib/helpers/computedBehavior.js

一套组件化、可复用、易扩展的头条小程序 UI 组件库

"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var _isEmpty=_interopRequireDefault(require("./isEmpty")),_shallowEqual=_interopRequireDefault(require("./shallowEqual"));function _interopRequireDefault(e){return e&&e.__esModule?e:{default:e}}function _toConsumableArray(e){return _arrayWithoutHoles(e)||_iterableToArray(e)||_unsupportedIterableToArray(e)||_nonIterableSpread()}function _nonIterableSpread(){throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}function _iterableToArray(e){if("undefined"!=typeof Symbol&&Symbol.iterator in Object(e))return Array.from(e)}function _arrayWithoutHoles(e){if(Array.isArray(e))return _arrayLikeToArray(e)}function ownKeys(r,e){var t,n=Object.keys(r);return Object.getOwnPropertySymbols&&(t=Object.getOwnPropertySymbols(r),e&&(t=t.filter(function(e){return Object.getOwnPropertyDescriptor(r,e).enumerable})),n.push.apply(n,t)),n}function _objectSpread(r){for(var e=1;e<arguments.length;e++){var t=null!=arguments[e]?arguments[e]:{};e%2?ownKeys(Object(t),!0).forEach(function(e){_defineProperty(r,e,t[e])}):Object.getOwnPropertyDescriptors?Object.defineProperties(r,Object.getOwnPropertyDescriptors(t)):ownKeys(Object(t)).forEach(function(e){Object.defineProperty(r,e,Object.getOwnPropertyDescriptor(t,e))})}return r}function _defineProperty(e,r,t){return r in e?Object.defineProperty(e,r,{value:t,enumerable:!0,configurable:!0,writable:!0}):e[r]=t,e}function _slicedToArray(e,r){return _arrayWithHoles(e)||_iterableToArrayLimit(e,r)||_unsupportedIterableToArray(e,r)||_nonIterableRest()}function _nonIterableRest(){throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}function _unsupportedIterableToArray(e,r){if(e){if("string"==typeof e)return _arrayLikeToArray(e,r);var t=Object.prototype.toString.call(e).slice(8,-1);return"Object"===t&&e.constructor&&(t=e.constructor.name),"Map"===t||"Set"===t?Array.from(e):"Arguments"===t||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t)?_arrayLikeToArray(e,r):void 0}}function _arrayLikeToArray(e,r){(null==r||r>e.length)&&(r=e.length);for(var t=0,n=new Array(r);t<r;t++)n[t]=e[t];return n}function _iterableToArrayLimit(e,r){if("undefined"!=typeof Symbol&&Symbol.iterator in Object(e)){var t=[],n=!0,o=!1,a=void 0;try{for(var i,u=e[Symbol.iterator]();!(n=(i=u.next()).done)&&(t.push(i.value),!r||t.length!==r);n=!0);}catch(e){o=!0,a=e}finally{try{n||null==u.return||u.return()}finally{if(o)throw a}}return t}}function _arrayWithHoles(e){if(Array.isArray(e))return e}var ALL_DATA_KEY="**",trim=function(e){return(0<arguments.length&&void 0!==e?e:"").replace(/\s/g,"")},_default=Behavior({lifetimes:{attached:function(){this.initComputed()}},definitionFilter:function(e){var r=e.computed,n=void 0===r?{}:r,i=Object.keys(n).reduce(function(e,a){var r=_slicedToArray(Array.isArray(n[a])?n[a]:[ALL_DATA_KEY,n[a]],2),t=r[0],i=r[1];return _objectSpread(_objectSpread({},e),{},_defineProperty({},t,function(){if("function"==typeof i){for(var e=arguments.length,r=new Array(e),t=0;t<e;t++)r[t]=arguments[t];var n=i.apply(this,r),o=this.data[a];(0,_isEmpty.default)(n)||(0,_shallowEqual.default)(n,o)||this.setData(_defineProperty({},a,n))}}))},{});Object.assign(e.observers=e.observers||{},i),Object.assign(e.methods=e.methods||{},{initComputed:function(e,r){var t,n,o=0<arguments.length&&void 0!==e?e:{},a=1<arguments.length&&void 0!==r&&r;this.runInitComputed&&!a||(this.runInitComputed=!1,n=_objectSpread(_objectSpread({},(t=this).data),o),Object.keys(i).forEach(function(e){var r=trim(e).split(",").reduce(function(e,r){return[].concat(_toConsumableArray(e),[n[r]])},[]);i[e].apply(t,r)}),this.runInitComputed=!0)}})}});exports.default=_default;