/*

 Copyright 2012 Marijn Haverbeke
 SPDX-License-Identifier: MIT
*/
var p;
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Wa=/[\n\r\u2028\u2029]/,Ta=/\r\n|[\n\r\u2028\u2029]/g,qa,nb={kind:"loop"},Xc={kind:"switch"}};"object"===typeof exports&&"object"===typeof module?ca(exports):"function"===typeof define&&define.ic?define(["exports"],ca):ca(ba.j||(ba.j={}));/*

 Copyright 2013 Neil Fraser
 SPDX-License-Identifier: Apache-2.0
*/
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function Q(a,b){switch(b.type){case "ArrayExpression":return"[...]";case "BinaryExpression":case "LogicalExpression":return Q(a,b.left)+" "+b.operator+" "+Q(a,b.right);case "CallExpression":return Q(a,b.callee)+"(...)";case "ConditionalExpression":return Q(a,b.test)+" ? "+Q(a,b.fa)+" : "+Q(a,b.alternate);case "Identifier":return b.name;case "Literal":return b.raw;case "MemberExpression":var d=Q(a,b.object);a=Q(a,b.Ya);return b.fb?d+"["+a+"]":d+"."+a;case "NewExpression":return"new "+Q(a,b.callee)+
"(...)";case "ObjectExpression":return"{...}";case "ThisExpression":return"this";case "UnaryExpression":return b.operator+" "+Q(a,b.J);case "UpdateExpression":return d=Q(a,b.J),b.prefix?b.operator+d:d+b.operator}return"???"}
function Nb(a,b,d){var c=a.j[a.j.length-1],e=Array.from(d),g=e.shift();d=Math.max(Number(e.shift()||0),0);var k=a.Da();if(g instanceof D&&"Function"===g.H){var q=g;k.type="CallExpression";c=c.scope}else{try{var C=da(String(g),"taskCode"+a.hc++)}catch(R){H(a,a.Y,"Invalid code: "+R.message)}k.type="EvalProgram_";k.body=C.body;c=c.node.arguments[0];ta(k,c?c.start:void 0,c?c.end:void 0);c=a.M;e.length=0}b=new jd(q,e,c,k,b?d:-1);Ab(a,b,d);return b.u}
function Ab(a,b,d){b.time=Date.now()+d;a.$.push(b);a.$.sort(function(c,e){return c.time-e.time})}function Ob(a,b){for(var d=0;d<a.$.length;d++)if(a.$[d].u==b){a.$.splice(d,1);break}}function kd(a,b,d){if(!a.R)throw Error("Unexpected call to createGetter");a.R=!1;d=Array.isArray(d)?d[0]:d;var c=a.Da();c.type="CallExpression";a=new u(c,a.j[a.j.length-1].scope);a.ma=2;a.C=d;a.aa=b;a.Ta=!0;a.G=[];return a}
function ld(a,b,d,c){if(!a.Ma)throw Error("Unexpected call to createSetter");a.Ma=!1;d=Array.isArray(d)?d[0]:a.Qa;var e=a.Da();e.type="CallExpression";a=new u(e,a.j[a.j.length-1].scope);a.ma=2;a.C=d;a.aa=b;a.Ta=!0;a.G=[c];return a}function md(a,b){return void 0===b||null===b?a.Qa:b instanceof D?b:(a=a.s(Bc(a,b)),a.data=b,a)}p.Ub=function(){return this.M};p.cc=function(a){this.M=a;this.j[0].scope=a};p.Vb=function(){return this.j};p.dc=function(a){this.j=a};
function u(a,b){this.node=a;this.scope=b}function cd(a,b,d){this.Xa=a;this.U=b;this.object=d}function D(a){this.ba=Object.create(null);this.ea=Object.create(null);this.h=Object.create(null);this.Ca=a}p=D.prototype;p.Ca=null;p.H="Object";p.data=null;
p.toString=function(){if(!Oa)return"[object Interpreter.Object]";if(!(this instanceof D))return String(this);if("Array"===this.H){var a=Ma;a.push(this);try{var b=[],d=this.h.length,c=!1;1024<d&&(d=1E3,c=!0);for(var e=0;e<d;e++){var g=this.h[e];b[e]=g instanceof D&&-1!==a.indexOf(g)?"...":g}c&&b.push("...")}finally{a.pop()}return b.join(",")}if("Error"===this.H){a=Ma;if(-1!==a.indexOf(this))return"[object Error]";d=this;do if("name"in d.h){b=d.h.name;break}while(d=d.Ca);d=this;do if("message"in d.h){c=
d.h.message;break}while(d=d.Ca);a.push(this);try{b=b&&String(b),c=c&&String(c)}finally{a.pop()}return c?b+": "+c:String(b)}return null!==this.data?String(this.data):"[object "+this.H+"]"};p.valueOf=function(){return!Oa||void 0===this.data||null===this.data||this.data instanceof RegExp?this:this.data instanceof Date?this.data.valueOf():this.data};function jd(a,b,d,c,e){this.o=a;this.A=b;this.scope=d;this.node=c;this.j=e;this.u=++nd;this.time=0}var nd=0;
t.prototype.stepArrayExpression=function(a,b,d){d=d.elements;var c=b.B||0;b.Ra?(this.g(b.Ra,c,b.value),c++):(b.Ra=Cc(this),b.Ra.h.length=d.length);for(;c<d.length;){if(d[c])return b.B=c,new u(d[c],b.scope);c++}a.pop();a[a.length-1].value=b.Ra};
t.prototype.stepAssignmentExpression=function(a,b,d){if(!b.na)return b.na=!0,b=new u(d.left,b.scope),b.xa=!0,b;if(!b.Ga){b.Ia||(b.Ia=b.value);b.Ea&&(b.qa=b.value);if(!b.Ea&&"="!==d.operator&&(a=gd(this,b.Ia),b.qa=a,this.R))return b.Ea=!0,kd(this,a,b.Ia);b.Ga=!0;"="===d.operator&&"Identifier"===d.left.type&&(b.Sa=d.left.name);return new u(d.right,b.scope)}if(b.ya)a.pop(),a[a.length-1].value=b.kb;else{var c=b.qa,e=b.value;switch(d.operator){case "=":c=e;break;case "+=":c+=e;break;case "-=":c-=e;break;
case "*=":c*=e;break;case "/=":c/=e;break;case "%=":c%=e;break;case "<<=":c<<=e;break;case ">>=":c>>=e;break;case ">>>=":c>>>=e;break;case "&=":c&=e;break;case "^=":c^=e;break;case "|=":c|=e;break;default:throw SyntaxError("Unknown assignment expression: "+d.operator);}if(d=hd(this,b.Ia,c))return b.ya=!0,b.kb=c,ld(this,d,b.Ia,c);a.pop();a[a.length-1].value=c}};
t.prototype.stepBinaryExpression=function(a,b,d){if(!b.na)return b.na=!0,new u(d.left,b.scope);if(!b.Ga)return b.Ga=!0,b.qa=b.value,new u(d.right,b.scope);a.pop();var c=b.qa;b=b.value;switch(d.operator){case "==":d=c==b;break;case "!=":d=c!=b;break;case "===":d=c===b;break;case "!==":d=c!==b;break;case ">":d=c>b;break;case ">=":d=c>=b;break;case "<":d=c<b;break;case "<=":d=c<=b;break;case "+":d=c+b;break;case "-":d=c-b;break;case "*":d=c*b;break;case "/":d=c/b;break;case "%":d=c%b;break;case "&":d=
c&b;break;case "|":d=c|b;break;case "^":d=c^b;break;case "<<":d=c<<b;break;case ">>":d=c>>b;break;case ">>>":d=c>>>b;break;case "in":b instanceof D||H(this,this.o,"'in' expects an object, not '"+b+"'");d=ad(this,b,c);break;case "instanceof":P(this,b,this.P)||H(this,this.o,"'instanceof' expects an object, not '"+b+"'");d=c instanceof D?P(this,c,b):!1;break;default:throw SyntaxError("Unknown binary operator: "+d.operator);}a[a.length-1].value=d};
t.prototype.stepBlockStatement=function(a,b,d){var c=b.B||0;if(d=d.body[c])return b.B=c+1,new u(d,b.scope);a.pop()};t.prototype.stepBreakStatement=function(a,b,d){id(this,1,void 0,d.label&&d.label.name)};t.prototype.Fb=0;
t.prototype.stepCallExpression=function(a,b,d){if(!b.ma){b.ma=1;var c=new u(d.callee,b.scope);c.xa=!0;return c}if(1===b.ma){b.ma=2;var e=b.value;if(Array.isArray(e)){if(b.aa=gd(this,e),e[0]===Ja?b.Mb="eval"===e[1]:b.C=e[0],e=b.aa,this.R)return b.ma=1,kd(this,e,b.value)}else b.aa=e;b.G=[];b.B=0}e=b.aa;if(!b.Ta){0!==b.B&&b.G.push(b.value);if(d.arguments[b.B])return new u(d.arguments[b.B++],b.scope);if("NewExpression"===d.type){e instanceof D&&!e.zb||H(this,this.o,Q(this,d.callee)+" is not a constructor");
if(e===this.ua)b.C=Cc(this);else{var g=e.h.prototype;if("object"!==typeof g||null===g)g=this.L;b.C=this.s(g)}b.isConstructor=!0}b.Ta=!0}if(b.hb)a.pop(),a[a.length-1].value=b.isConstructor&&"object"!==typeof b.value?b.C:b.value;else{b.hb=!0;e instanceof D||H(this,this.o,Q(this,d.callee)+" is not a function");if(a=e.node){d=ja(this,a.body,e.Xa);c=Cc(this);for(e=0;e<b.G.length;e++)this.g(c,e,b.G[e]);this.g(d.object,"arguments",c);for(e=0;e<a.sa.length;e++)this.g(d.object,a.sa[e].name,b.G.length>e?b.G[e]:
void 0);d.U||(b.C=md(this,b.C));this.g(d.object,"this",b.C,wa);b.value=void 0;return new u(a.body,d)}if(e.eval)if(e=b.G[0],"string"!==typeof e)b.value=e;else{try{c=da(String(e),"eval"+this.Fb++)}catch(q){H(this,this.Y,"Invalid code: "+q.message)}e=this.Da();e.type="EvalProgram_";e.body=c.body;ta(e,d.start,d.end);d=b.Mb?b.scope:this.M;d.U?d=ja(this,c,d):bb(this,c,d);this.value=void 0;return new u(e,d)}else if(e.Va)b.scope.U||(b.C=md(this,b.C)),b.value=e.Va.apply(b.C,b.G);else if(e.bb){var k=this;c=
e.bb.length-1;c=b.G.concat(Array(c)).slice(0,c);c.push(function(q){b.value=q;k.wa=!1});this.wa=!0;b.scope.U||(b.C=md(this,b.C));e.bb.apply(b.C,c)}else H(this,this.o,Q(this,d.callee)+" is not callable")}};
t.prototype.stepConditionalExpression=function(a,b,d){var c=b.ra||0;if(0===c)return b.ra=1,new u(d.test,b.scope);if(1===c){b.ra=2;if((c=!!b.value)&&d.fa)return new u(d.fa,b.scope);if(!c&&d.alternate)return new u(d.alternate,b.scope);this.value=void 0}a.pop();"ConditionalExpression"===d.type&&(a[a.length-1].value=b.value)};t.prototype.stepContinueStatement=function(a,b,d){id(this,2,void 0,d.label&&d.label.name)};t.prototype.stepDebuggerStatement=function(a){a.pop()};
t.prototype.stepDoWhileStatement=function(a,b,d){"DoWhileStatement"===d.type&&void 0===b.ka&&(b.value=!0,b.ka=!0);if(!b.ka)return b.ka=!0,new u(d.test,b.scope);if(!b.value)a.pop();else if(d.body)return b.ka=!1,b.ca=!0,new u(d.body,b.scope)};t.prototype.stepEmptyStatement=function(a){a.pop()};t.prototype.stepEvalProgram_=function(a,b,d){var c=b.B||0;if(d=d.body[c])return b.B=c+1,new u(d,b.scope);a.pop();a[a.length-1].value=this.value};
t.prototype.stepExpressionStatement=function(a,b,d){if(!b.oa)return this.value=void 0,b.oa=!0,new u(d.pa,b.scope);a.pop();this.value=b.value};
t.prototype.stepForInStatement=function(a,b,d){if(!b.Rb&&(b.Rb=!0,d.left.ia&&d.left.ia[0].za))return b.scope.U&&H(this,this.Y,"for-in loop variable declaration may not have an initializer"),new u(d.left,b.scope);if(!b.Fa)return b.Fa=!0,b.ta||(b.ta=b.value),new u(d.right,b.scope);b.ca||(b.ca=!0,b.v=b.value,b.mb=Object.create(null));if(void 0===b.Ua)a:for(;;){if(b.v instanceof D)for(b.Ba||(b.Ba=Object.getOwnPropertyNames(b.v.h));;){var c=b.Ba.shift();if(void 0===c)break;if(Object.prototype.hasOwnProperty.call(b.v.h,
c)&&!b.mb[c]&&(b.mb[c]=!0,Object.prototype.propertyIsEnumerable.call(b.v.h,c))){b.Ua=c;break a}}else if(null!==b.v&&void 0!==b.v)for(b.Ba||(b.Ba=Object.getOwnPropertyNames(b.v));;){c=b.Ba.shift();if(void 0===c)break;b.mb[c]=!0;if(Object.prototype.propertyIsEnumerable.call(b.v,c)){b.Ua=c;break a}}b.v=Bc(this,b.v);b.Ba=null;if(null===b.v){a.pop();return}}if(!b.wb)if(b.wb=!0,a=d.left,"VariableDeclaration"===a.type)b.ta=[Ja,a.ia[0].id.name];else return b.ta=null,b=new u(a,b.scope),b.xa=!0,b;b.ta||(b.ta=
b.value);if(!b.ya&&(b.ya=!0,a=b.Ua,c=hd(this,b.ta,a)))return ld(this,c,b.ta,a);b.Ua=void 0;b.wb=!1;b.ya=!1;if(d.body)return new u(d.body,b.scope)};t.prototype.stepForStatement=function(a,b,d){switch(b.ra){default:b.ra=1;if(d.za)return new u(d.za,b.scope);break;case 1:b.ra=2;if(d.test)return new u(d.test,b.scope);break;case 2:b.ra=3;if(d.test&&!b.value)a.pop();else return b.ca=!0,new u(d.body,b.scope);break;case 3:if(b.ra=1,d.update)return new u(d.update,b.scope)}};
t.prototype.stepFunctionDeclaration=function(a){a.pop()};t.prototype.stepFunctionExpression=function(a,b,d){a.pop();b=a[a.length-1];a=b.scope;d.id&&(a=dd(this,a));b.value=Pb(this,d,a,b.Sa);d.id&&this.g(a.object,d.id.name,b.value,wa)};t.prototype.stepIdentifier=function(a,b,d){a.pop();if(b.xa)a[a.length-1].value=[Ja,d.name];else{b=ed(this,d.name);if(this.R)return kd(this,b,this.Qa);a[a.length-1].value=b}};t.prototype.stepIfStatement=t.prototype.stepConditionalExpression;
t.prototype.stepLabeledStatement=function(a,b,d){a.pop();a=b.labels||[];a.push(d.label.name);b=new u(d.body,b.scope);b.labels=a;return b};t.prototype.stepLiteral=function(a,b,d){a.pop();b=d.value;b instanceof RegExp&&(d=this.s(this.Pa),Ic(this,d,b),b=d);a[a.length-1].value=b};
t.prototype.stepLogicalExpression=function(a,b,d){if("&&"!==d.operator&&"||"!==d.operator)throw SyntaxError("Unknown logical operator: "+d.operator);if(!b.na)return b.na=!0,new u(d.left,b.scope);if(b.Ga)a.pop(),a[a.length-1].value=b.value;else if("&&"===d.operator&&!b.value||"||"===d.operator&&b.value)a.pop(),a[a.length-1].value=b.value;else return b.Ga=!0,new u(d.right,b.scope)};
t.prototype.stepMemberExpression=function(a,b,d){if(!b.Fa)return b.Fa=!0,new u(d.object,b.scope);if(d.fb)if(b.Sb)d=b.value;else return b.v=b.value,b.Sb=!0,new u(d.Ya,b.scope);else b.v=b.value,d=d.Ya.name;a.pop();if(b.xa)a[a.length-1].value=[b.v,d];else{d=this.N(b.v,d);if(this.R)return kd(this,d,b.v);a[a.length-1].value=d}};t.prototype.stepNewExpression=t.prototype.stepCallExpression;
t.prototype.stepObjectExpression=function(a,b,d){var c=b.B||0,e=d.h[c];if(b.v){var g=b.Sa;b.La[g]||(b.La[g]={});b.La[g][e.kind]=b.value;b.B=++c;e=d.h[c]}else b.v=this.s(this.L),b.La=Object.create(null);if(e){var k=e.key;if("Identifier"===k.type)g=k.name;else if("Literal"===k.type)g=k.value;else throw SyntaxError("Unknown object structure: "+k.type);b.Sa=g;return new u(e.value,b.scope)}for(k in b.La)d=b.La[k],"get"in d||"set"in d?this.g(b.v,k,Ka,{configurable:!0,enumerable:!0,get:d.get,set:d.set}):
this.g(b.v,k,d.init);a.pop();a[a.length-1].value=b.v};t.prototype.stepProgram=function(a,b,d){if(a=d.body.shift())return b.done=!1,new u(a,b.scope);b.done=!0};t.prototype.stepReturnStatement=function(a,b,d){if(d.J&&!b.oa)return b.oa=!0,new u(d.J,b.scope);id(this,3,b.value)};t.prototype.stepSequenceExpression=function(a,b,d){var c=b.B||0;if(d=d.xb[c])return b.B=c+1,new u(d,b.scope);a.pop();a[a.length-1].value=b.value};
t.prototype.stepSwitchStatement=function(a,b,d){if(!b.ka)return b.ka=1,new u(d.Nb,b.scope);1===b.ka&&(b.ka=2,b.fc=b.value,b.gb=-1);for(;;){var c=b.jb||0,e=d.tb[c];if(b.Ka||!e||e.test)if(e||b.Ka||-1===b.gb)if(e){if(!b.Ka&&!b.Db&&e.test)return b.Db=!0,new u(e.test,b.scope);if(b.Ka||b.value===b.fc){b.Ka=!0;var g=b.B||0;if(e.fa[g])return b.Xb=!0,b.B=g+1,new u(e.fa[g],b.scope)}b.Db=!1;b.B=0;b.jb=c+1}else{a.pop();break}else b.Ka=!0,b.jb=b.gb;else b.gb=c,b.jb=c+1}};
t.prototype.stepThisExpression=function(a){a.pop();a[a.length-1].value=ed(this,"this")};t.prototype.stepThrowStatement=function(a,b,d){if(b.oa)H(this,b.value);else return b.oa=!0,new u(d.J,b.scope)};
t.prototype.stepTryStatement=function(a,b,d){if(!b.Ob)return b.Ob=!0,new u(d.block,b.scope);if(b.ha&&4===b.ha.type&&!b.Qb&&d.Ha)return b.Qb=!0,a=dd(this,b.scope),this.g(a.object,d.Ha.Wa.name,b.ha.value),b.ha=void 0,new u(d.Ha.body,a);if(!b.Pb&&d.ib)return b.Pb=!0,new u(d.ib,b.scope);a.pop();b.ha&&id(this,b.ha.type,b.ha.value,b.ha.label)};
t.prototype.stepUnaryExpression=function(a,b,d){if(!b.oa)return b.oa=!0,a=new u(d.J,b.scope),a.xa="delete"===d.operator,a;a.pop();var c=b.value;switch(d.operator){case "-":c=-c;break;case "+":c=+c;break;case "!":c=!c;break;case "~":c=~c;break;case "delete":d=!0;if(Array.isArray(c)){var e=c[0];e===Ja&&(e=b.scope);c=String(c[1]);try{delete e.h[c]}catch(g){b.scope.U?H(this,this.o,"Cannot delete property '"+c+"' of '"+e+"'"):d=!1}}c=d;break;case "typeof":c=c&&"Function"===c.H?"function":typeof c;break;
case "void":c=void 0;break;default:throw SyntaxError("Unknown unary operator: "+d.operator);}a[a.length-1].value=c};
t.prototype.stepUpdateExpression=function(a,b,d){if(!b.na)return b.na=!0,a=new u(d.J,b.scope),a.xa=!0,a;b.Ja||(b.Ja=b.value);b.Ea&&(b.qa=b.value);if(!b.Ea){var c=gd(this,b.Ja);b.qa=c;if(this.R)return b.Ea=!0,kd(this,c,b.Ja)}if(b.ya)a.pop(),a[a.length-1].value=b.kb;else{c=Number(b.qa);if("++"===d.operator)var e=c+1;else if("--"===d.operator)e=c-1;else throw SyntaxError("Unknown update expression: "+d.operator);d=d.prefix?e:c;if(c=hd(this,b.Ja,e))return b.ya=!0,b.kb=d,ld(this,c,b.Ja,e);a.pop();a[a.length-
1].value=d}};t.prototype.stepVariableDeclaration=function(a,b,d){d=d.ia;var c=b.B||0,e=d[c];b.Ab&&e&&(fd(this,e.id.name,b.value),b.Ab=!1,e=d[++c]);for(;e;){if(e.za)return b.B=c,b.Ab=!0,b.Sa=e.id.name,new u(e.za,b.scope);e=d[++c]}a.pop()};t.prototype.stepWithStatement=function(a,b,d){if(!b.Fa)return b.Fa=!0,new u(d.object,b.scope);a.pop();a=dd(this,b.scope,b.value);return new u(d.body,a)};t.prototype.stepWhileStatement=t.prototype.stepDoWhileStatement;Pa.Interpreter=t;t.prototype.step=t.prototype.nb;
t.prototype.run=t.prototype.Cb;t.prototype.getStatus=t.prototype.Wb;t.prototype.appendCode=t.prototype.Hb;t.prototype.createObject=t.prototype.ga;t.prototype.createObjectProto=t.prototype.s;t.prototype.createNativeFunction=t.prototype.i;t.prototype.createAsyncFunction=t.prototype.ub;t.prototype.getProperty=t.prototype.N;t.prototype.setProperty=t.prototype.g;t.prototype.nativeToPseudo=t.prototype.S;t.prototype.pseudoToNative=t.prototype.T;t.prototype.getGlobalScope=t.prototype.Ub;
t.prototype.setGlobalScope=t.prototype.cc;t.prototype.getStateStack=t.prototype.Vb;t.prototype.setStateStack=t.prototype.dc;t.Status=ua;t.VALUE_IN_DESCRIPTOR=Ka;