weex-bindingx/lib/index.native.js

bindingx,expression,binding,weex

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e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e},r=t(1);function o(e){try{if(void 0!==("undefined"==typeof weex?"undefined":i(weex))&&weex.requireModule)return weex.requireModule(e)}catch(e){}return window.require("@weex-module/"+e)}var s=!0,a=!0,l=void 0;try{l=o("bindingx"),s=!0}catch(e){s=!1}if(!l||!l.bind)try{l=o("binding"),s=!0}catch(e){s=!1}if(!(s=!!(l&&l.bind&&l.unbind&&l.getComputedStyle)))try{l=o("expressionBinding"),a=!0}catch(e){a=!1}function u(e){if(void 0!==e){try{e=JSON.parse(e)}catch(e){}var n={};if("string"==typeof e?n.origin=e:e&&(n.origin=e.origin,n.transformed=e.transformed),n.transformed||n.origin)return n.transformed=n.transformed||(0,r.parse)(n.origin),n}}a=!(!l||!l.bind&&!l.createBinding),n.default={isSupportNewBinding:s,isSupportBinding:a,_bindingInstances:[],bind:function(e){var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:function(){};if(!e)throw new Error("should pass options for binding");if(function(e){e&&(e.exitExpression=u(e.exitExpression),e.props&&e.props.forEach(function(e){e.expression=u(e.expression)}))}(e),l&&a){if(s)return l.bind(e,e&&"timing"===e.eventType?function(e){return function(){var n=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};if("function"==typeof e)return e({state:"end"===n.state?"exit":n.state,t:void 0!==n.t?n.t:n.deltaT})}}(n):n);l.enableBinding(e.anchor,e.eventType),l.createBinding(e.anchor,e.eventType,"",function(e){if(e&&e.props)return e.props.map(function(e){return{element:e.element,property:e.property,expression:e.expression.transformed}})}(e),n)}},unbind:function(e){if(!e)throw new Error("should pass options for binding");if(l&&a)return s?l.unbind(e):l.disableBinding(e.anchor,e.eventType)},unbindAll:function(){if(l&&a)return s?l.unbindAll():l.disableAll()},prepare:function(e){if(l&&a)return s?l.prepare(e):l.enableBinding(e.anchor,e.eventType)},getComputedStyle:function(e){return 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n;if("IdentifierName"===e.childNodes[0].name)return(n=getPath(e.childNodes[2]))&&(n=n.concat(e.childNodes[0].childNodes[0].token.toString())),createPath(n),n;if("PrimaryExpression"===e.childNodes[0].name)return"Identifier"===e.childNodes[0].childNodes[0].name?(createPath(n=[e.childNodes[0].childNodes[0].token.toString()]),n):null;if("]"===e.childNodes[0].name)return getPath(e.childNodes[3]),walk(e.childNodes[1]),null;if("Arguments"===e.childNodes[0].name)return walk(e.childNodes[0]),walk(e.childNodes[1]),null;for(var t=0;t<e.childNodes.length;t++)walk(e.childNodes[t])}function createPath(e){for(var n=context,t=0;t<e.length-1;t++)n[e[t]]||(n[e[t]]=Object.create(null)),n=n[e[t]];me.paths.push(e),pathIndex[e.join(".")]=!1}this.isSimple,this.isConst,walk(this.tree),checkSimple(this.tree),0===this.paths.length&&(this.isConst=!0),this.setter=function(e){for(var n=context,t=0;t<e.length-1;t++)n[e[t]]||(n[e[t]]=Object.create(null)),n=n[e[t]];return{isCompleted:function(){for(var e in pathIndex)if(!pathIndex[e])return!1;return!0},set:function(i){return pathIndex[e.join(".")]||(pathIndex[e.join(".")]=!0),n[e[t]]=i,this.isCompleted()?me.exec():void 0}}},this.valueOf=this.exec=function(){try{return function(){return eval(text)}.call(context)}catch(e){}}}function visit(e){var n,t=e.childNodes.slice().reverse(),i=t.filter(function(e){return!e.token||!e.token.Punctuator});if("UnaryExpression"===e.name&&(2===t.length&&"-"===t[0].name&&1===i.length))return(n=visit(i[0])).value=-n.value,n;if("Arguments"===e.name){for(var r=[],o=i[0];o;)3===o.childNodes.length&&(r.unshift(o.childNodes[0]),o=o.childNodes[2]),1===o.childNodes.length&&(r.unshift(o.childNodes[0]),o=null);return{type:"Arguments",children:r.map(function(e){return visit(e)})}}if(i&&1===i.length)return n=visit(i[0]);if(e.token&&["NullLiteral","BooleanLiteral","NumericLiteral","StringLiteral","Identifier"].some(function(n){return e.token[n]})){var s=Object.keys(e.token).filter(function(e){return e.match(/Literal/)||e.match(/Identifier/)})[0];return{type:s,value:{NullLiteral:null,BooleanLiteral:Boolean(e.token),NumericLiteral:Number(e.token),StringLiteral:e.token,Identifier:e.token}[s]}}return"CallExpression"===e.name?{type:"CallExpression",children:[visit(t[0]),visit(t[1])]}:{type:t.filter(function(e){return e.token&&e.token.Punctuator})[0].name,children:t.filter(function(e){return!e.token||!e.token.Punctuator}).map(function(e){return visit(e)})}}function parse(e){var n=new JavaScriptExpression(e);return JSON.stringify(visit(n.tree),null)}module.exports={parse:parse}}])})}])});