acorn_interpreter.js

var Interpreter=function(t){function e(n){if(r[n])return r[n].exports;var o=r[n]={i:n,l:!1,exports:{}};return t[n].call(o.exports,o,o.exports,e),o.l=!0,o.exports}var r={};return e.m=t,e.c=r,e.d=function(t,r,n){e.o(t,r)||Object.defineProperty(t,r,{configurable:!1,enumerable:!0,get:n})},e.n=function(t){var r=t&&t.__esModule?function(){return t.default}:function(){return t};return e.d(r,"a",r),r},e.o=function(t,e){return Object.prototype.hasOwnProperty.call(t,e)},e.p="",e(e.s=0)}([function(t,e,r){t.exports=r(1)},function(t,e,r){var n,o;n=[r,e,r(2),r(4)],void 0!==(o=function(t,e,r,n){"use strict";/*!
     * @license
     * JavaScript Interpreter bundled with acorn v0.4.1
     *
     * Copyright 2013-2017 Google Inc. and Jun Kato
     *
     * Licensed under the Apache License, Version 2.0 (the "License");
     * you may not use this file except in compliance with the License.
     * You may obtain a copy of the License at
     *
     *   http://www.apache.org/licenses/LICENSE-2.0
     *
     * Unless required by applicable law or agreed to in writing, software
     * distributed under the License is distributed on an "AS IS" BASIS,
     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     * See the License for the specific language governing permissions and
     * limitations under the License.
     */
return n.acorn=r,n}.apply(e,n))&&(t.exports=o)},function(t,e,r){"use strict";(function(t){var r,n,o,i="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t};!function(a,s){"object"==i(e)&&"object"==i(t)?s(e):(n=[e],r=s,void 0!==(o="function"==typeof r?r.apply(e,n):r)&&(t.exports=o))}(0,function(t){function e(t){lt=t||{};for(var e in dt)Object.prototype.hasOwnProperty.call(lt,e)||(lt[e]=dt[e]);yt=lt.sourceFile||null}function r(t,e){var r=vt(ht,t);e+=" ("+r.line+":"+r.column+")";var n=new SyntaxError(e);throw n.pos=t,n.loc=r,n.raisedAt=Et,n}function n(t){function e(t){if(1==t.length)return r+="return str === "+JSON.stringify(t[0])+";";r+="switch(str){";for(var e=0;e<t.length;++e)r+="case "+JSON.stringify(t[e])+":";r+="return true}return false;"}t=t.split(" ");var r="",n=[];t:for(var o=0;o<t.length;++o){for(var 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o=["getDate","getDay","getFullYear","getHours","getMilliseconds","getMinutes","getMonth","getSeconds","getTime","getTimezoneOffset","getUTCDate","getUTCDay","getUTCFullYear","getUTCHours","getUTCMilliseconds","getUTCMinutes","getUTCMonth","getUTCSeconds","getYear","setDate","setFullYear","setHours","setMilliseconds","setMinutes","setMonth","setSeconds","setTime","setUTCDate","setUTCFullYear","setUTCHours","setUTCMilliseconds","setUTCMinutes","setUTCMonth","setUTCSeconds","setYear","toDateString","toISOString","toJSON","toGMTString","toLocaleDateString","toLocaleString","toLocaleTimeString","toTimeString","toUTCString"],i=0;i<o.length;i++)r=function(t){return function(e){for(var r=[],o=0;o<arguments.length;o++)r[o]=n.pseudoToNative(arguments[o]);return this.data[t].apply(this.data,r)}}(o[i]),this.setNativeFunctionPrototype(this.DATE,o[i],r)},t.prototype.initRegExp=function(e){var r,n=this;r=function(t,e){if(n.calledWithNew())var r=this;else var 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n=this.createObjectProto(this.FUNCTION_PROTO);return n.nativeFunc=e,e.id=this.functionCounter_++,this.setProperty(n,"length",e.length,t.READONLY_DESCRIPTOR),r?this.setProperty(n.properties.prototype,"constructor",n,t.NONENUMERABLE_DESCRIPTOR):!1===r&&(n.illegalConstructor=!0,this.setProperty(n,"prototype",void 0)),n},t.prototype.createAsyncFunction=function(e){var r=this.createObjectProto(this.FUNCTION_PROTO);return r.asyncFunc=e,e.id=this.functionCounter_++,this.setProperty(r,"length",e.length,t.READONLY_DESCRIPTOR),r},t.prototype.nativeToPseudo=function(t){if("boolean"==typeof t||"number"==typeof t||"string"==typeof t||null===t||void 0===t)return t;if(t instanceof RegExp){var e=this.createObjectProto(this.REGEXP_PROTO);return this.populateRegExp(e,t),e}if(t instanceof Function){var r=this,n=function(){return r.nativeToPseudo(t.apply(r,Array.prototype.slice.call(arguments).map(function(t){return r.pseudoToNative(t)})))};return this.createNativeFunction(n,void 0)}var o;if(Array.isArray(t)){o=this.createObjectProto(this.ARRAY_PROTO);for(var i=0;i<t.length;i++)i in t&&this.setProperty(o,i,this.nativeToPseudo(t[i]))}else{o=this.createObjectProto(this.OBJECT_PROTO);for(var a in t)this.setProperty(o,a,this.nativeToPseudo(t[a]))}return o},t.prototype.pseudoToNative=function(t,e){if("boolean"==typeof t||"number"==typeof t||"string"==typeof t||null===t||void 0===t)return t;if(this.isa(t,this.REGEXP))return t.data;var r=e||{pseudo:[],native:[]},n=r.pseudo.indexOf(t);if(-1!==n)return r.native[n];r.pseudo.push(t);var o;if(this.isa(t,this.ARRAY)){o=[],r.native.push(o);for(var i=this.getProperty(t,"length"),n=0;n<i;n++)this.hasProperty(t,n)&&(o[n]=this.pseudoToNative(this.getProperty(t,n),r))}else{o={},r.native.push(o);var a;for(var s in t.properties)a=t.properties[s],o[s]=this.pseudoToNative(a,r)}return r.pseudo.pop(),r.native.pop(),o},t.prototype.getPrototype=function(t){switch(typeof t){case"number":return this.NUMBER.properties.prototype;case"boolean":return this.BOOLEAN.properties.prototype;case"string":return this.STRING.properties.prototype}return t?t.proto:null},t.prototype.getProperty=function(e,r){if(r=String(r),void 0!==e&&null!==e||this.throwException(this.TYPE_ERROR,"Cannot read property '"+r+"' of "+e),"length"===r){if(this.isa(e,this.STRING))return String(e).length}else if(r.charCodeAt(0)<64&&this.isa(e,this.STRING)){var n=t.legalArrayIndex(r);if(!isNaN(n)&&n<String(e).length)return String(e)[n]}do{var o=e;if(o.properties&&r in o.properties){var i=o.getter[r];return i?(i.isGetter=!0,i):o.properties[r]}}while(e=this.getPrototype(e))},t.prototype.hasProperty=function(e,r){if(!e.isObject)throw TypeError("Primitive data type has no properties");if("length"===(r=String(r))&&this.isa(e,this.STRING))return!0;if(this.isa(e,this.STRING)){var n=t.legalArrayIndex(r);if(!isNaN(n)&&n<String(e).length)return!0}do{var o=e;if(o.properties&&r in o.properties)return!0}while(e=this.getPrototype(e));return!1},t.prototype.setProperty=function(e,r,n,o){r=String(r),void 0!==e&&null!==e||this.throwException(this.TYPE_ERROR,"Cannot set property '"+r+"' of "+e),o&&("get"in o||"set"in o)&&("value"in o||"writable"in o)&&this.throwException(this.TYPE_ERROR,"Invalid property descriptor. 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o&&(o.set?e.setter[r]=o.set:delete e.setter[r]);var c={};"configurable"in o&&(c.configurable=o.configurable),"enumerable"in o&&(c.enumerable=o.enumerable),"writable"in o&&(c.writable=o.writable,delete e.getter[r],delete e.setter[r]),"value"in o?(c.value=o.value,delete e.getter[r],delete e.setter[r]):n!==ReferenceError&&(c.value=n,delete e.getter[r],delete e.setter[r]);try{Object.defineProperty(e.properties,r,c)}catch(t){this.throwException(this.TYPE_ERROR,"Cannot redefine property: "+r)}}else{if(n===ReferenceError)throw ReferenceError("Value not specified.");for(var u=e;!(r in u.properties);)if(!(u=this.getPrototype(u))){u=e;break}if(u.setter&&u.setter[r])return u.setter[r];if(u.getter&&u.getter[r])i&&this.throwException(this.TYPE_ERROR,"Cannot set property '"+r+"' of object '"+e+"' which only has a getter");else try{e.properties[r]=n}catch(t){i&&this.throwException(this.TYPE_ERROR,"Cannot assign to read only property '"+r+"' of object '"+e+"'")}}},t.prototype.setNativeFunctionPrototype=function(e,r,n){this.setProperty(e.properties.prototype,r,this.createNativeFunction(n,!1),t.NONENUMERABLE_DESCRIPTOR)},t.prototype.getScope=function(){var t=this.stateStack[this.stateStack.length-1].scope;if(!t)throw Error("No scope found.");return t},t.prototype.createScope=function(t,e){var r=this.createObjectProto(null);if(r.parentScope=e,e||this.initGlobalScope(r),this.populateScope_(t,r),r.strict=!1,e&&e.strict)r.strict=!0;else{var n=t.body&&t.body[0];n&&n.expression&&"Literal"===n.expression.type&&"use strict"===n.expression.value&&(r.strict=!0)}return r},t.prototype.createSpecialScope=function(t,e){if(!t)throw Error("parentScope required");var r=e||this.createObjectProto(null);return r.parentScope=t,r.strict=t.strict,r},t.prototype.getValueFromScope=function(t){for(var e=this.getScope();e&&e!==this.global;){if(t in e.properties)return e.properties[t];e=e.parentScope}if(e===this.global&&this.hasProperty(e,t))return this.getProperty(e,t);var r=this.stateStack[this.stateStack.length-1].node;"UnaryExpression"===r.type&&"typeof"===r.operator||this.throwException(this.REFERENCE_ERROR,t+" is not defined")},t.prototype.setValueToScope=function(t,e){for(var r=this.getScope(),n=r.strict;r&&r!==this.global;){if(t in r.properties)return void(r.properties[t]=e);r=r.parentScope}if(r===this.global&&(!n||this.hasProperty(r,t)))return this.setProperty(r,t,e);this.throwException(this.REFERENCE_ERROR,t+" is not defined")},t.prototype.populateScope_=function(e,r){if("VariableDeclaration"===e.type)for(var n=0;n<e.declarations.length;n++)this.setProperty(r,e.declarations[n].id.name,void 0,t.VARIABLE_DESCRIPTOR);else{if("FunctionDeclaration"===e.type)return void this.setProperty(r,e.id.name,this.createFunction(e,r),t.VARIABLE_DESCRIPTOR);if("FunctionExpression"===e.type)return;if("ExpressionStatement"===e.type)return}var o=e.constructor;for(var i in e){var a=e[i];if(a&&"object"==typeof a)if(Array.isArray(a))for(var n=0;n<a.length;n++)a[n]&&a[n].constructor===o&&this.populateScope_(a[n],r);else a.constructor===o&&this.populateScope_(a,r)}},t.prototype.stripLocations_=function(t,e,r){e?t.start=e:delete t.start,r?t.end=r:delete t.end;for(var n in t)if(t.hasOwnProperty(n)){var o=t[n];o&&"object"==typeof o&&this.stripLocations_(o,e,r)}},t.prototype.calledWithNew=function(){return this.stateStack[this.stateStack.length-1].isConstructor},t.prototype.getValue=function(e){return e[0]===t.SCOPE_REFERENCE?this.getValueFromScope(e[1]):this.getProperty(e[0],e[1])},t.prototype.setValue=function(e,r){return e[0]===t.SCOPE_REFERENCE?this.setValueToScope(e[1],r):this.setProperty(e[0],e[1],r)},t.prototype.throwException=function(e,r){if(void 0===r)var n=e;else{var n=this.createObject(e);this.setProperty(n,"message",r,t.NONENUMERABLE_DESCRIPTOR)}throw this.executeException(n),t.STEP_ERROR},t.prototype.executeException=function(t){var e=this.stateStack.slice();do{this.stateStack.pop();var r=this.stateStack[this.stateStack.length-1];if("TryStatement"===r.node.type)return void(r.throwValue=t)}while(r&&"Program"!==r.node.type);var n;if(this.isa(t,this.ERROR)){var o={EvalError:EvalError,RangeError:RangeError,ReferenceError:ReferenceError,SyntaxError:SyntaxError,TypeError:TypeError,URIError:URIError},i=this.getProperty(t,"name").toString(),a=this.getProperty(t,"message").valueOf();n=(o[i]||Error)(a)}else n=String(t);throw this.stateStack=e,n},t.prototype.createGetter_=function(e,r){var n=Array.isArray(r)?r[0]:r,o=new this.nodeConstructor;o.type="CallExpression";var i=new t.MyState(o,this.stateStack[this.stateStack.length-1].scope);return i.doneCallee_=!0,i.funcThis_=n,i.func_=e,i.doneArgs_=!0,i.arguments_=[],i},t.prototype.createSetter_=function(e,r,n){var o=Array.isArray(r)?r[0]:this.global,i=new this.nodeConstructor;i.type="CallExpression";var a=new t.MyState(i,this.stateStack[this.stateStack.length-1].scope);return a.doneCallee_=!0,a.funcThis_=o,a.func_=e,a.doneArgs_=!0,a.arguments_=[n],a},t.prototype.stepArrayExpression=function(e,r,n){var o=n.elements,i=r.n_||0;for(r.array_?(this.setProperty(r.array_,i,r.value),i++):(r.array_=this.createObjectProto(this.ARRAY_PROTO),r.array_.properties.length=o.length);i<o.length;){if(o[i])return r.n_=i,new t.MyState(o[i],r.scope);i++}e.pop(),e[e.length-1].value=r.array_},t.prototype.stepAssignmentExpression=function(e,r,n){if(!r.doneLeft_){r.doneLeft_=!0;var o=new t.MyState(n.left,r.scope);return o.components=!0,o}if(!r.doneRight_){if(r.leftReference_||(r.leftReference_=r.value),r.doneGetter_&&(r.leftValue_=r.value),!r.doneGetter_&&"="!==n.operator){var i=this.getValue(r.leftReference_);if(r.leftValue_=i,i&&"object"==typeof i&&i.isGetter){i.isGetter=!1,r.doneGetter_=!0;var a=i;return this.createGetter_(a,r.leftReference_)}}return r.doneRight_=!0,new t.MyState(n.right,r.scope)}if(r.doneSetter_)return e.pop(),void(e[e.length-1].value=r.doneSetter_);var s=r.leftValue_,p=r.value;switch(n.operator){case"=":s=p;break;case"+=":s+=p;break;case"-=":s-=p;break;case"*=":s*=p;break;case"/=":s/=p;break;case"%=":s%=p;break;case"<<=":s<<=p;break;case">>=":s>>=p;break;case">>>=":s>>>=p;break;case"&=":s&=p;break;case"^=":s^=p;break;case"|=":s|=p;break;default:throw SyntaxError("Unknown assignment expression: "+n.operator)}var c=this.setValue(r.leftReference_,s);if(c)return r.doneSetter_=s,this.createSetter_(c,r.leftReference_,s);e.pop(),e[e.length-1].value=s},t.prototype.stepBinaryExpression=function(e,r,n){if(!r.doneLeft_)return r.doneLeft_=!0,new t.MyState(n.left,r.scope);if(!r.doneRight_)return r.doneRight_=!0,r.leftValue_=r.value,new t.MyState(n.right,r.scope);e.pop();var o,i=r.leftValue_,a=r.value;switch(n.operator){case"==":o=i==a;break;case"!=":o=i!=a;break;case"===":o=i===a;break;case"!==":o=i!==a;break;case">":o=i>a;break;case">=":o=i>=a;break;case"<":o=i<a;break;case"<=":o=i<=a;break;case"+":o=i+a;break;case"-":o=i-a;break;case"*":o=i*a;break;case"/":o=i/a;break;case"%":o=i%a;break;case"&":o=i&a;break;case"|":o=i|a;break;case"^":o=i^a;break;case"<<":o=i<<a;break;case">>":o=i>>a;break;case">>>":o=i>>>a;break;case"in":a&&a.isObject||this.throwException(this.TYPE_ERROR,"'in' expects an object, not '"+a+"'"),o=this.hasProperty(a,i);break;case"instanceof":this.isa(a,this.FUNCTION)||this.throwException(this.TYPE_ERROR,"Right-hand side of instanceof is not an object"),o=!!i.isObject&&this.isa(i,a);break;default:throw SyntaxError("Unknown binary operator: "+n.operator)}e[e.length-1].value=o},t.prototype.stepBlockStatement=function(e,r,n){var o=r.n_||0,i=n.body[o];if(i)return r.n_=o+1,new t.MyState(i,r.scope);e.pop()},t.prototype.stepBreakStatement=function(t,e,r){t.pop();var n=null;for(r.label&&(n=r.label.name);e&&"CallExpression"!==e.node.type&&"NewExpression"!==e.node.type;){if(n){if(e.labels&&-1!==e.labels.indexOf(n))return}else if(e.isLoop||e.isSwitch)return;e=t.pop()}throw SyntaxError("Illegal break statement")},t.prototype.stepCallExpression=function(e,r,n){if(!r.doneCallee_){r.doneCallee_=1;var o=new t.MyState(n.callee,r.scope);return o.components=!0,o}if(1===r.doneCallee_){r.doneCallee_=2;var i=r.value;if(Array.isArray(i)){if(r.func_=this.getValue(i),i[0]!==t.SCOPE_REFERENCE&&(r.funcThis_=i[0]),(i=r.func_)&&"object"==typeof i&&i.isGetter)return i.isGetter=!1,r.doneCallee_=1,this.createGetter_(i,r.value)}else r.func_=i;r.arguments_=[],r.n_=0}var i=r.func_;if(!r.doneArgs_){if(0!==r.n_&&r.arguments_.push(r.value),n.arguments[r.n_])return new t.MyState(n.arguments[r.n_++],r.scope);"NewExpression"===n.type?(i.illegalConstructor&&this.throwException(this.TYPE_ERROR,i+" is not a constructor"),r.funcThis_=this.createObject(i),r.isConstructor=!0):void 0===r.funcThis_&&(r.funcThis_=r.scope.strict?void 0:this.global),r.doneArgs_=!0}if(r.doneExec_)e.pop(),r.isConstructor&&"object"!=typeof r.value?e[e.length-1].value=r.funcThis_:e[e.length-1].value=r.value;else{r.doneExec_=!0,i&&i.isObject||this.throwException(this.TYPE_ERROR,i+" is not a function");var a=i.node;if(a){for(var s=this.createScope(a.body,i.parentScope),p=0;p<a.params.length;p++){var c=a.params[p].name,u=r.arguments_.length>p?r.arguments_[p]:void 0;this.setProperty(s,c,u)}for(var l=this.createObjectProto(this.ARRAY_PROTO),p=0;p<r.arguments_.length;p++)this.setProperty(l,p,r.arguments_[p]);this.setProperty(s,"arguments",l);var h=a.id&&a.id.name;return h&&this.setProperty(s,h,i),this.setProperty(s,"this",r.funcThis_,t.READONLY_DESCRIPTOR),r.value=void 0,new t.MyState(a.body,s)}if(i.eval){var f=r.arguments_[0];if("string"==typeof f){try{var y=t.acorn.parse(f.toString(),t.PARSE_OPTIONS)}catch(t){this.throwException(this.SYNTAX_ERROR,"Invalid code: "+t.message)}var d=new this.nodeConstructor;d.type="EvalProgram_",d.body=y.body,this.stripLocations_(d,n.start,n.end);var s=r.scope;return s.strict?s=this.createScope(y,s):this.populateScope_(y,s),this.value=void 0,new t.MyState(d,s)}r.value=f}else if(i.nativeFunc)r.value=i.nativeFunc.apply(r.funcThis_,r.arguments_);else{if(i.asyncFunc){var v=this,E=function(t){r.value=t,v.paused_=!1},g=r.arguments_.concat(E);return this.paused_=!0,void i.asyncFunc.apply(r.funcThis_,g)}this.throwException(this.TYPE_ERROR,i.class+" is not a function")}}},t.prototype.stepCatchClause=function(e,r,n){if(!r.done_){r.done_=!0;var o=this.createSpecialScope(r.scope);return this.setProperty(o,n.param.name,r.throwValue),new t.MyState(n.body,o)}e.pop()},t.prototype.stepConditionalExpression=function(e,r,n){var o=r.mode_||0;if(0===o)return r.mode_=1,new t.MyState(n.test,r.scope);if(1===o){r.mode_=2;var i=Boolean(r.value);if(i&&n.consequent)return new t.MyState(n.consequent,r.scope);if(!i&&n.alternate)return new t.MyState(n.alternate,r.scope);this.value=void 0}e.pop(),"ConditionalExpression"===n.type&&(e[e.length-1].value=r.value)},t.prototype.stepContinueStatement=function(t,e,r){t.pop();var n=null;for(r.label&&(n=r.label.name),e=t[t.length-1];e&&"CallExpression"!==e.node.type&&"NewExpression"!==e.node.type;){if(e.isLoop&&(!n||e.labels&&-1!==e.labels.indexOf(n)))return;t.pop(),e=t[t.length-1]}throw SyntaxError("Illegal continue statement")},t.prototype.stepDebuggerStatement=function(t,e,r){t.pop()},t.prototype.stepDoWhileStatement=function(e,r,n){if("DoWhileStatement"===n.type&&void 0===r.test_&&(r.value=!0,r.test_=!0),!r.test_)return r.test_=!0,new t.MyState(n.test,r.scope);if(r.value){if(n.body)return r.test_=!1,r.isLoop=!0,new t.MyState(n.body,r.scope)}else e.pop()},t.prototype.stepEmptyStatement=function(t,e,r){t.pop()},t.prototype.stepEvalProgram_=function(e,r,n){var o=r.n_||0,i=n.body[o];if(i)return r.n_=o+1,new t.MyState(i,r.scope);e.pop(),e[e.length-1].value=this.value},t.prototype.stepExpressionStatement=function(e,r,n){if(!r.done_)return r.done_=!0,new t.MyState(n.expression,r.scope);e.pop(),this.value=r.value},t.prototype.stepForInStatement=function(e,r,n){if(!r.doneInit_&&(r.doneInit_=!0,n.left.declarations&&n.left.declarations[0].init))return r.scope.strict&&this.throwException(this.SYNTAX_ERROR,"for-in loop variable declaration may not have an initializer."),new t.MyState(n.left,r.scope);if(!r.doneObject_)return r.doneObject_=!0,r.variable_||(r.variable_=r.value),new t.MyState(n.right,r.scope);if(r.isLoop||(r.isLoop=!0,r.object_=r.value,r.visited_=Object.create(null)),void 0===r.name_){t:do{if(r.object_&&r.object_.isObject){r.props_||(r.props_=Object.getOwnPropertyNames(r.object_.properties));do{var o=r.props_.shift()}while(o&&(r.visited_[o]||!Object.prototype.hasOwnProperty.call(r.object_.properties,o)));if(o&&(r.visited_[o]=!0,Object.prototype.propertyIsEnumerable.call(r.object_.properties,o))){r.name_=o;break t}}else if(null!==r.object_){r.props_||(r.props_=Object.getOwnPropertyNames(r.object_));do{var o=r.props_.shift()}while(o&&r.visited_[o]);if(o){r.visited_[o]=!0,r.name_=o;break t}}r.object_=this.getPrototype(r.object_),r.props_=null}while(null!==r.object_);if(null===r.object_)return void e.pop()}if(!r.doneVariable_){r.doneVariable_=!0;var i=n.left;if("VariableDeclaration"!==i.type){r.variable_=null;var a=new t.MyState(i,r.scope);return a.components=!0,a}r.variable_=[t.SCOPE_REFERENCE,i.declarations[0].id.name]}if(r.variable_||(r.variable_=r.value),!r.doneSetter_){r.doneSetter_=!0;var s=r.name_,p=this.setValue(r.variable_,s);if(p)return this.createSetter_(p,r.variable_,s)}return r.name_=void 0,r.doneVariable_=!1,r.doneSetter_=!1,n.body?new t.MyState(n.body,r.scope):void 0},t.prototype.stepForStatement=function(e,r,n){var o=r.mode_||0;if(0===o){if(r.mode_=1,n.init)return new t.MyState(n.init,r.scope)}else if(1===o){if(r.mode_=2,n.test)return new t.MyState(n.test,r.scope)}else if(2===o){if(r.mode_=3,!n.test||r.value)return r.isLoop=!0,new t.MyState(n.body,r.scope);e.pop()}else if(3===o&&(r.mode_=1,n.update))return new t.MyState(n.update,r.scope)},t.prototype.stepFunctionDeclaration=function(t,e,r){t.pop()},t.prototype.stepFunctionExpression=function(t,e,r){t.pop(),t[t.length-1].value=this.createFunction(r,e.scope)},t.prototype.stepIdentifier=function(e,r,n){if(e.pop(),r.components)return void(e[e.length-1].value=[t.SCOPE_REFERENCE,n.name]);var o=this.getValueFromScope(n.name);if(o&&"object"==typeof o&&o.isGetter){o.isGetter=!1;for(var i=r.scope;!this.hasProperty(i,n.name);)i=i.parentScope;var a=o;return this.createGetter_(a,this.global)}e[e.length-1].value=o},t.prototype.stepIfStatement=function(t,e,r){return this.stepConditionalExpression(t,e,r)},t.prototype.stepLabeledStatement=function(e,r,n){e.pop();var o=r.labels||[];o.push(n.label.name);var i=new t.MyState(n.body,r.scope);return i.labels=o,i},t.prototype.stepLiteral=function(t,e,r){t.pop();var n=r.value;if(n instanceof RegExp){var o=this.createObjectProto(this.REGEXP_PROTO);this.populateRegExp(o,n),n=o}t[t.length-1].value=n},t.prototype.stepLogicalExpression=function(e,r,n){if("&&"!==n.operator&&"||"!==n.operator)throw SyntaxError("Unknown logical operator: "+n.operator);if(!r.doneLeft_)return r.doneLeft_=!0,new t.MyState(n.left,r.scope);if(r.doneRight_)e.pop(),e[e.length-1].value=r.value;else{if(!("&&"===n.operator&&!r.value||"||"===n.operator&&r.value))return r.doneRight_=!0,new t.MyState(n.right,r.scope);e.pop(),e[e.length-1].value=r.value}},t.prototype.stepMemberExpression=function(e,r,n){if(!r.doneObject_)return r.doneObject_=!0,new t.MyState(n.object,r.scope);var o;if(n.computed){if(!r.doneProperty_)return r.object_=r.value,r.doneProperty_=!0,new t.MyState(n.property,r.scope);o=r.value}else r.object_=r.value,o=n.property.name;if(e.pop(),r.components)e[e.length-1].value=[r.object_,o];else{var i=this.getProperty(r.object_,o);if(i&&"object"==typeof i&&i.isGetter){i.isGetter=!1;var a=i;return this.createGetter_(a,r.object_)}e[e.length-1].value=i}},t.prototype.stepNewExpression=function(t,e,r){return this.stepCallExpression(t,e,r)},t.prototype.stepObjectExpression=function(e,r,n){var o=r.n_||0,i=n.properties[o];if(r.object_){var a=i.key;if("Identifier"===a.type)var s=a.name;else{if("Literal"!==a.type)throw SyntaxError("Unknown object structure: "+a.type);var s=a.value}r.properties_[s]||(r.properties_[s]={}),r.properties_[s][i.kind]=r.value,r.n_=++o,i=n.properties[o]}else r.object_=this.createObjectProto(this.OBJECT_PROTO),r.properties_=Object.create(null);if(i)return new t.MyState(i.value,r.scope);for(var a in r.properties_){var p=r.properties_[a];if("get"in p||"set"in p){var c={configurable:!0,enumerable:!0,get:p.get,set:p.set};this.setProperty(r.object_,a,null,c)}else this.setProperty(r.object_,a,p.init)}e.pop(),e[e.length-1].value=r.object_},t.prototype.stepProgram=function(e,r,n){var o=r.n_||0,i=n.body[o];if(i)return r.done=!1,r.n_=o+1,new t.MyState(i,r.scope);r.done=!0},t.prototype.stepReturnStatement=function(e,r,n){if(n.argument&&!r.done_)return r.done_=!0,new t.MyState(n.argument,r.scope);var o=r.value,i=e.length-1;for(r=e[i];"CallExpression"!==r.node.type&&"NewExpression"!==r.node.type;){if("TryStatement"!==r.node.type&&e.splice(i,1),--i<0)throw SyntaxError("Illegal return statement");r=e[i]}r.value=o},t.prototype.stepSequenceExpression=function(e,r,n){var o=r.n_||0,i=n.expressions[o];if(i)return r.n_=o+1,new t.MyState(i,r.scope);e.pop(),e[e.length-1].value=r.value},t.prototype.stepSwitchStatement=function(e,r,n){if(!r.test_)return r.test_=1,new t.MyState(n.discriminant,r.scope);for(1===r.test_&&(r.test_=2,r.switchValue_=r.value);;){var o=r.index_||0,i=n.cases[o];if(r.matched_||!i||i.test)if(i||r.matched_||!r.defaultCase_){if(!i)return void e.pop();if(!r.matched_&&!r.tested_&&i.test)return r.tested_=!0,new t.MyState(i.test,r.scope);if(r.matched_||r.value===r.switchValue_){r.matched_=!0;var a=r.n_||0;if(i.consequent[a])return r.isSwitch=!0,r.n_=a+1,new t.MyState(i.consequent[a],r.scope)}r.tested_=!1,r.n_=0,r.index_=o+1}else r.matched_=!0,r.index_=r.defaultCase_;else r.defaultCase_=o,r.index_=o+1}},t.prototype.stepThisExpression=function(t,e,r){t.pop(),t[t.length-1].value=this.getValueFromScope("this")},t.prototype.stepThrowStatement=function(e,r,n){if(!r.done_)return r.done_=!0,new t.MyState(n.argument,r.scope);this.throwException(r.value)},t.prototype.stepTryStatement=function(e,r,n){if(!r.doneBlock_)return r.doneBlock_=!0,new t.MyState(n.block,r.scope);if(r.throwValue&&!r.doneHandler_&&n.handler){r.doneHandler_=!0;var o=new t.MyState(n.handler,r.scope);return o.throwValue=r.throwValue,r.throwValue=null,o}if(!r.doneFinalizer_&&n.finalizer)return r.doneFinalizer_=!0,new t.MyState(n.finalizer,r.scope);r.throwValue?this.executeException(r.throwValue):e.pop()},t.prototype.stepUnaryExpression=function(e,r,n){if(!r.done_){r.done_=!0;var o=new t.MyState(n.argument,r.scope);return o.components="delete"===n.operator,o}e.pop();var i=r.value;if("-"===n.operator)i=-i;else if("+"===n.operator)i=+i;else if("!"===n.operator)i=!i;else if("~"===n.operator)i=~i;else if("delete"===n.operator){var a=!0;if(Array.isArray(i)){var s=i[0];s===t.SCOPE_REFERENCE&&(s=r.scope);var p=String(i[1]);try{delete s.properties[p]}catch(t){r.scope.strict?this.throwException(this.TYPE_ERROR,"Cannot delete property '"+p+"' of '"+s+"'"):a=!1}}i=a}else if("typeof"===n.operator)i=i&&"Function"===i.class?"function":typeof i;else{if("void"!==n.operator)throw SyntaxError("Unknown unary operator: "+n.operator);i=void 0}e[e.length-1].value=i},t.prototype.stepUpdateExpression=function(e,r,n){if(!r.doneLeft_){r.doneLeft_=!0;var o=new t.MyState(n.argument,r.scope);return o.components=!0,o}if(r.leftSide_||(r.leftSide_=r.value),r.doneGetter_&&(r.leftValue_=r.value),!r.doneGetter_){var i=this.getValue(r.leftSide_);if(r.leftValue_=i,i&&"object"==typeof i&&i.isGetter){i.isGetter=!1,r.doneGetter_=!0;var a=i;return this.createGetter_(a,r.leftSide_)}}if(r.doneSetter_)return e.pop(),void(e[e.length-1].value=r.doneSetter_);i=Number(r.leftValue_);var s;if("++"===n.operator)s=i+1;else{if("--"!==n.operator)throw SyntaxError("Unknown update expression: "+n.operator);s=i-1}var p=n.prefix?s:i,c=this.setValue(r.leftSide_,s);if(c)return r.doneSetter_=p,this.createSetter_(c,r.leftSide_,s);e.pop(),e[e.length-1].value=p},t.prototype.stepVariableDeclaration=function(e,r,n){var o=n.declarations,i=r.n_||0,a=o[i];for(r.init_&&a&&(this.setValueToScope(a.id.name,r.value),r.init_=!1,a=o[++i]);a;){if(a.init)return r.n_=i,r.init_=!0,new t.MyState(a.init,r.scope);a=o[++i]}e.pop()},t.prototype.stepWithStatement=function(e,r,n){if(!r.doneObject_)return r.doneObject_=!0,new t.MyState(n.object,r.scope);if(!r.doneBody_){r.doneBody_=!0;var o=this.createSpecialScope(r.scope,r.value);return new t.MyState(n.body,o)}e.pop()},t.prototype.stepWhileStatement=function(t,e,r){return this.stepDoWhileStatement(t,e,r)},t.PARSE_OPTIONS={ecmaVersion:5},t.READONLY_DESCRIPTOR={configurable:!0,enumerable:!0,writable:!1},t.NONENUMERABLE_DESCRIPTOR={configurable:!0,enumerable:!1,writable:!0},t.READONLY_NONENUMERABLE_DESCRIPTOR={configurable:!0,enumerable:!1,writable:!1},t.VARIABLE_DESCRIPTOR={configurable:!1,enumerable:!0,writable:!0},t.STEP_ERROR={},t.SCOPE_REFERENCE={},t.toStringCycles_=[],t}();!function(t){var e=function(){function e(t){this.proto=null,this.isObject=!0,this.class="Object",this.data=null,this.getter=Object.create(null),this.setter=Object.create(null),this.properties=Object.create(null),this.proto=t}return e.prototype.toString=function(){if("Array"===this.class){var e=t.toStringCycles_;e.push(this);try{for(var r=[],n=0;n<this.properties.length;n++){var o=this.properties[n];r[n]=o&&o.isObject&&-1!==e.indexOf(o)?"...":o}}finally{e.pop()}return r.join(",")}if("Error"===this.class){var e=t.toStringCycles_;if(-1!==e.indexOf(this))return"[object Error]";var i,a,s=this;do{if("name"in s.properties){i=s.properties.name;break}}while(s=s.proto);var s=this;do{if("message"in s.properties){a=s.properties.message;break}}while(s=s.proto);e.push(this);try{i=i&&i.toString(),a=a&&a.toString()}finally{e.pop()}return a?i+": "+a:String(i)}return null!==this.data?String(this.data):"[object "+this.class+"]"},e.prototype.valueOf=function(){return void 0===this.data||null===this.data||this.data instanceof RegExp?this:this.data instanceof Date?this.data.valueOf():this.data},e}();t.MyObject=e;var r=function(){function t(t,e){this.node=t,this.scope=e}return t}();t.MyState=r}(r||(r={})),r.Object=r.MyObject,r.State=r.MyState;try{r.acorn=(self||n).acorn}catch(t){}return r}.apply(e,o))&&(t.exports=i)}).call(e,r(5))},function(t,e){var r;r=function(){return this}();try{r=r||Function("return this")()||(0,eval)("this")}catch(t){"object"==typeof window&&(r=window)}t.exports=r}]);
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