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acorn_interpreter.js
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// Acorn: Copyright 2012 Marijn Haverbeke, MIT License
var mod$$inline_58=function(a){function b(a){n=a||{};for(var b in Ua)Object.prototype.hasOwnProperty.call(n,b)||(n[b]=Ua[b]);wa=n.sourceFile||null}function c(a,b){var c=Ab(k,a);b+=" ("+c.line+":"+c.column+")";var d=new SyntaxError(b);d.pos=a;d.loc=c;d.raisedAt=f;throw d;}function d(a){function b(a){if(1==a.length)return c+="return str === "+JSON.stringify(a[0])+";";c+="switch(str){";for(var va=0;va<a.length;++va)c+="case "+JSON.stringify(a[va])+":";c+="return true}return false;"}a=a.split(" ");var c=
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na=/[\n\r\u2028\u2029]/,Y=/\r\n|[\n\r\u2028\u2029]/g,la=a.isIdentifierStart=function(a){return 65>a?36===a:91>a?!0:97>a?95===a:123>a?!0:170<=a&&Za.test(String.fromCharCode(a))},ab=a.isIdentifierChar=function(a){return 48>a?36===a:58>a?!0:65>a?!1:91>a?!0:97>a?95===a:123>a?!0:170<=a&&Pb.test(String.fromCharCode(a))},ca,Ia={kind:"loop"},Ob={kind:"switch"}};
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// JS-Interpreter: Copyright 2013 Google LLC, Apache 2.0
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function id(a,b,c){if(!a.M)throw Error("Unexpected call to createGetter");a.M=!1;c=Array.isArray(c)?c[0]:c;var d=new a.La({options:{}});d.type="CallExpression";a=new v(d,a.m[a.m.length-1].scope);a.ma=!0;a.B=c;a.$=b;a.Va=!0;a.H=[];return a}function jd(a,b,c,d){if(!a.Ca)throw Error("Unexpected call to createSetter");a.Ca=!1;c=Array.isArray(c)?c[0]:a.Ya;var e=new a.La({options:{}});e.type="CallExpression";a=new v(e,a.m[a.m.length-1].scope);a.ma=!0;a.B=c;a.$=b;a.Va=!0;a.H=[d];return a}
function kd(a,b){if(void 0===b||null===b)return a.Ya;if(!(b instanceof F)){var c=a.o(Ac(a,b));c.data=b;return c}return b}function v(a,b){this.node=a;this.scope=b}function bd(a,b,c){this.Oa=a;this.O=b;this.object=c}function F(a){this.S=Object.create(null);this.W=Object.create(null);this.g=Object.create(null);this.qa=a}p=F.prototype;p.qa=null;p.I="Object";p.data=null;
p.toString=function(){if(!(this instanceof F))return String(this);if("Array"===this.I){var a=Ka;a.push(this);try{var b=[],c=this.g.length,d=!1;1024<c&&(c=1E3,d=!0);for(var e=0;e<c;e++){var g=this.g[e];b[e]=g instanceof F&&-1!==a.indexOf(g)?"...":g}d&&b.push("...")}finally{a.pop()}return b.join(",")}if("Error"===this.I){a=Ka;if(-1!==a.indexOf(this))return"[object Error]";c=this;do if("name"in c.g){b=c.g.name;break}while(c=c.qa);c=this;do if("message"in c.g){d=c.g.message;break}while(c=c.qa);a.push(this);
try{b=b&&String(b),d=d&&String(d)}finally{a.pop()}return d?b+": "+d:String(b)}return null!==this.data?String(this.data):"[object "+this.I+"]"};p.valueOf=function(){return void 0===this.data||null===this.data||this.data instanceof RegExp?this:this.data instanceof Date?this.data.valueOf():this.data};
u.prototype.stepArrayExpression=function(a,b,c){c=c.elements;var d=b.v||0;b.Fa?(this.setProperty(b.Fa,d,b.value),d++):(b.Fa=Cc(this),b.Fa.g.length=c.length);for(;d<c.length;){if(c[d])return b.v=d,new v(c[d],b.scope);d++}a.pop();a[a.length-1].value=b.Fa};
u.prototype.stepAssignmentExpression=function(a,b,c){if(!b.da)return b.da=!0,b=new v(c.left,b.scope),b.la=!0,b;if(!b.ua){b.wa||(b.wa=b.value);b.sa&&(b.ea=b.value);if(!b.sa&&"="!==c.operator&&(a=fd(this,b.wa),b.ea=a,this.M))return b.sa=!0,id(this,a,b.wa);b.ua=!0;"="===c.operator&&"Identifier"===c.left.type&&(b.Ga=c.left.name);return new v(c.right,b.scope)}if(b.na)a.pop(),a[a.length-1].value=b.bb;else{var d=b.ea,e=b.value;switch(c.operator){case "=":d=e;break;case "+=":d+=e;break;case "-=":d-=e;break;
case "*=":d*=e;break;case "/=":d/=e;break;case "%=":d%=e;break;case "<<=":d<<=e;break;case ">>=":d>>=e;break;case ">>>=":d>>>=e;break;case "&=":d&=e;break;case "^=":d^=e;break;case "|=":d|=e;break;default:throw SyntaxError("Unknown assignment expression: "+c.operator);}if(c=gd(this,b.wa,d))return b.na=!0,b.bb=d,jd(this,c,b.wa,d);a.pop();a[a.length-1].value=d}};
u.prototype.stepBinaryExpression=function(a,b,c){if(!b.da)return b.da=!0,new v(c.left,b.scope);if(!b.ua)return b.ua=!0,b.ea=b.value,new v(c.right,b.scope);a.pop();var d=b.ea;b=b.value;switch(c.operator){case "==":c=d==b;break;case "!=":c=d!=b;break;case "===":c=d===b;break;case "!==":c=d!==b;break;case ">":c=d>b;break;case ">=":c=d>=b;break;case "<":c=d<b;break;case "<=":c=d<=b;break;case "+":c=d+b;break;case "-":c=d-b;break;case "*":c=d*b;break;case "/":c=d/b;break;case "%":c=d%b;break;case "&":c=
d&b;break;case "|":c=d|b;break;case "^":c=d^b;break;case "<<":c=d<<b;break;case ">>":c=d>>b;break;case ">>>":c=d>>>b;break;case "in":b instanceof F||L(this,this.l,"'in' expects an object, not '"+b+"'");c=$c(this,b,d);break;case "instanceof":P(this,b,this.L)||L(this,this.l,"Right-hand side of instanceof is not an object");c=d instanceof F?P(this,d,b):!1;break;default:throw SyntaxError("Unknown binary operator: "+c.operator);}a[a.length-1].value=c};
u.prototype.stepBlockStatement=function(a,b,c){var d=b.v||0;if(c=c.body[d])return b.v=d+1,new v(c,b.scope);a.pop()};u.prototype.stepBreakStatement=function(a,b,c){hd(this,1,void 0,c.label&&c.label.name)};u.prototype.Mb=0;
u.prototype.stepCallExpression=function(a,b,c){if(!b.ma){b.ma=1;var d=new v(c.callee,b.scope);d.la=!0;return d}if(1===b.ma){b.ma=2;d=b.value;if(Array.isArray(d)){if(b.$=fd(this,d),d[0]===Ha?b.Fb="eval"===d[1]:b.B=d[0],d=b.$,this.M)return b.ma=1,id(this,d,b.value)}else b.$=d;b.H=[];b.v=0}d=b.$;if(!b.Va){0!==b.v&&b.H.push(b.value);if(c.arguments[b.v])return new v(c.arguments[b.v++],b.scope);if("NewExpression"===c.type){d instanceof F&&!d.qb||L(this,this.l,d+" is not a constructor");if(d===this.ha)b.B=
Cc(this);else{var e=d.g.prototype;if("object"!==typeof e||null===e)e=this.J;b.B=this.o(e)}b.isConstructor=!0}b.Va=!0}if(b.Wa)a.pop(),a[a.length-1].value=b.isConstructor&&"object"!==typeof b.value?b.B:b.value;else{b.Wa=!0;d instanceof F||L(this,this.l,d+" is not a function");if(a=d.node){c=fa(this,a.body,d.Oa);for(var g=0;g<a.params.length;g++)this.setProperty(c.object,a.params[g].name,b.H.length>g?b.H[g]:void 0);e=Cc(this);for(g=0;g<b.H.length;g++)this.setProperty(e,g,b.H[g]);this.setProperty(c.object,
"arguments",e);(g=a.id&&a.id.name)&&this.setProperty(c.object,g,d);c.O||(b.B=kd(this,b.B));this.setProperty(c.object,"this",b.B,xa);b.value=void 0;return new v(a.body,c)}if(d.eval)if(d=b.H[0],"string"!==typeof d)b.value=d;else{try{g=ea(String(d),"eval"+this.Mb++)}catch(t){L(this,this.ia,"Invalid code: "+t.message)}d=new this.La({options:{}});d.type="EvalProgram_";d.body=g.body;ha(d,c.start,c.end);c=b.Fb?b.scope:this.T;c.O?c=fa(this,g,c):db(this,g,c);this.value=void 0;return new v(d,c)}else if(d.Ka)b.scope.O||
(b.B=kd(this,b.B)),b.value=d.Ka.apply(b.B,b.H);else if(d.Ra){var l=this;g=d.Ra.length-1;g=b.H.concat(Array(g)).slice(0,g);g.push(function(t){b.value=t;l.Aa=!1});this.Aa=!0;b.scope.O||(b.B=kd(this,b.B));d.Ra.apply(b.B,g)}else L(this,this.l,d.I+" is not callable")}};u.prototype.stepCatchClause=function(a,b,c){if(b.R)a.pop();else return b.R=!0,a=cd(this,b.scope),this.setProperty(a.object,c.param.name,b.$b),new v(c.body,a)};
u.prototype.stepConditionalExpression=function(a,b,c){var d=b.fa||0;if(0===d)return b.fa=1,new v(c.test,b.scope);if(1===d){b.fa=2;if((d=!!b.value)&&c.consequent)return new v(c.consequent,b.scope);if(!d&&c.alternate)return new v(c.alternate,b.scope);this.value=void 0}a.pop();"ConditionalExpression"===c.type&&(a[a.length-1].value=b.value)};u.prototype.stepContinueStatement=function(a,b,c){hd(this,2,void 0,c.label&&c.label.name)};u.prototype.stepDebuggerStatement=function(a){a.pop()};
u.prototype.stepDoWhileStatement=function(a,b,c){"DoWhileStatement"===c.type&&void 0===b.ba&&(b.value=!0,b.ba=!0);if(!b.ba)return b.ba=!0,new v(c.test,b.scope);if(!b.value)a.pop();else if(c.body)return b.ba=!1,b.U=!0,new v(c.body,b.scope)};u.prototype.stepEmptyStatement=function(a){a.pop()};u.prototype.stepEvalProgram_=function(a,b,c){var d=b.v||0;if(c=c.body[d])return b.v=d+1,new v(c,b.scope);a.pop();a[a.length-1].value=this.value};
u.prototype.stepExpressionStatement=function(a,b,c){if(!b.R)return b.R=!0,new v(c.expression,b.scope);a.pop();this.value=b.value};
u.prototype.stepForInStatement=function(a,b,c){if(!b.Kb&&(b.Kb=!0,c.left.declarations&&c.left.declarations[0].init))return b.scope.O&&L(this,this.ia,"for-in loop variable declaration may not have an initializer."),new v(c.left,b.scope);if(!b.ta)return b.ta=!0,b.ga||(b.ga=b.value),new v(c.right,b.scope);b.U||(b.U=!0,b.s=b.value,b.cb=Object.create(null));if(void 0===b.Ia)a:for(;;){if(b.s instanceof F)for(b.pa||(b.pa=Object.getOwnPropertyNames(b.s.g));;){var d=b.pa.shift();if(void 0===d)break;if(Object.prototype.hasOwnProperty.call(b.s.g,
d)&&!b.cb[d]&&(b.cb[d]=!0,Object.prototype.propertyIsEnumerable.call(b.s.g,d))){b.Ia=d;break a}}else if(null!==b.s&&void 0!==b.s)for(b.pa||(b.pa=Object.getOwnPropertyNames(b.s));;){d=b.pa.shift();if(void 0===d)break;b.cb[d]=!0;if(Object.prototype.propertyIsEnumerable.call(b.s,d)){b.Ia=d;break a}}b.s=Ac(this,b.s);b.pa=null;if(null===b.s){a.pop();return}}if(!b.nb)if(b.nb=!0,a=c.left,"VariableDeclaration"===a.type)b.ga=[Ha,a.declarations[0].id.name];else return b.ga=null,b=new v(a,b.scope),b.la=!0,b;
b.ga||(b.ga=b.value);if(!b.na&&(b.na=!0,a=b.Ia,d=gd(this,b.ga,a)))return jd(this,d,b.ga,a);b.Ia=void 0;b.nb=!1;b.na=!1;if(c.body)return new v(c.body,b.scope)};u.prototype.stepForStatement=function(a,b,c){var d=b.fa||0;if(0===d){if(b.fa=1,c.init)return new v(c.init,b.scope)}else if(1===d){if(b.fa=2,c.test)return new v(c.test,b.scope)}else if(2===d)if(b.fa=3,c.test&&!b.value)a.pop();else return b.U=!0,new v(c.body,b.scope);else if(3===d&&(b.fa=1,c.update))return new v(c.update,b.scope)};
u.prototype.stepFunctionDeclaration=function(a){a.pop()};u.prototype.stepFunctionExpression=function(a,b,c){a.pop();b=a[a.length-1];b.value=Qb(this,c,b.scope,b.Ga)};u.prototype.stepIdentifier=function(a,b,c){a.pop();if(b.la)a[a.length-1].value=[Ha,c.name];else{b=dd(this,c.name);if(this.M)return id(this,b,this.Ya);a[a.length-1].value=b}};u.prototype.stepIfStatement=u.prototype.stepConditionalExpression;
u.prototype.stepLabeledStatement=function(a,b,c){a.pop();a=b.labels||[];a.push(c.label.name);b=new v(c.body,b.scope);b.labels=a;return b};u.prototype.stepLiteral=function(a,b,c){a.pop();b=c.value;b instanceof RegExp&&(c=this.o(this.Ea),Hc(this,c,b),b=c);a[a.length-1].value=b};
u.prototype.stepLogicalExpression=function(a,b,c){if("&&"!==c.operator&&"||"!==c.operator)throw SyntaxError("Unknown logical operator: "+c.operator);if(!b.da)return b.da=!0,new v(c.left,b.scope);if(b.ua)a.pop(),a[a.length-1].value=b.value;else if("&&"===c.operator&&!b.value||"||"===c.operator&&b.value)a.pop(),a[a.length-1].value=b.value;else return b.ua=!0,new v(c.right,b.scope)};
u.prototype.stepMemberExpression=function(a,b,c){if(!b.ta)return b.ta=!0,new v(c.object,b.scope);if(c.computed)if(b.Lb)c=b.value;else return b.s=b.value,b.Lb=!0,new v(c.property,b.scope);else b.s=b.value,c=c.property.name;a.pop();if(b.la)a[a.length-1].value=[b.s,c];else{c=this.D(b.s,c);if(this.M)return id(this,c,b.s);a[a.length-1].value=c}};u.prototype.stepNewExpression=u.prototype.stepCallExpression;
u.prototype.stepObjectExpression=function(a,b,c){var d=b.v||0,e=c.properties[d];if(b.s){var g=b.Ga;b.Ba[g]||(b.Ba[g]={});b.Ba[g][e.kind]=b.value;b.v=++d;e=c.properties[d]}else b.s=this.o(this.J),b.Ba=Object.create(null);if(e){var l=e.key;if("Identifier"===l.type)g=l.name;else if("Literal"===l.type)g=l.value;else throw SyntaxError("Unknown object structure: "+l.type);b.Ga=g;return new v(e.value,b.scope)}for(l in b.Ba)c=b.Ba[l],"get"in c||"set"in c?this.setProperty(b.s,l,Ia,{configurable:!0,enumerable:!0,
get:c.get,set:c.set}):this.setProperty(b.s,l,c.init);a.pop();a[a.length-1].value=b.s};u.prototype.stepProgram=function(a,b,c){if(a=c.body.shift())return b.done=!1,new v(a,b.scope);b.done=!0};u.prototype.stepReturnStatement=function(a,b,c){if(c.argument&&!b.R)return b.R=!0,new v(c.argument,b.scope);hd(this,3,b.value,void 0)};u.prototype.stepSequenceExpression=function(a,b,c){var d=b.v||0;if(c=c.expressions[d])return b.v=d+1,new v(c,b.scope);a.pop();a[a.length-1].value=b.value};
u.prototype.stepSwitchStatement=function(a,b,c){if(!b.ba)return b.ba=1,new v(c.discriminant,b.scope);1===b.ba&&(b.ba=2,b.Zb=b.value,b.Ua=-1);for(;;){var d=b.Za||0,e=c.cases[d];if(b.ya||!e||e.test)if(e||b.ya||-1===b.Ua)if(e){if(!b.ya&&!b.wb&&e.test)return b.wb=!0,new v(e.test,b.scope);if(b.ya||b.value===b.Zb){b.ya=!0;var g=b.v||0;if(e.consequent[g])return b.Rb=!0,b.v=g+1,new v(e.consequent[g],b.scope)}b.wb=!1;b.v=0;b.Za=d+1}else{a.pop();break}else b.ya=!0,b.Za=b.Ua;else b.Ua=d,b.Za=d+1}};
u.prototype.stepThisExpression=function(a){a.pop();a[a.length-1].value=dd(this,"this")};u.prototype.stepThrowStatement=function(a,b,c){if(b.R)L(this,b.value);else return b.R=!0,new v(c.argument,b.scope)};
u.prototype.stepTryStatement=function(a,b,c){if(!b.Gb)return b.Gb=!0,new v(c.block,b.scope);if(b.Z&&4===b.Z.type&&!b.Jb&&c.handler)return b.Jb=!0,a=new v(c.handler,b.scope),a.$b=b.Z.value,b.Z=void 0,a;if(!b.Ib&&c.finalizer)return b.Ib=!0,new v(c.finalizer,b.scope);a.pop();b.Z&&hd(this,b.Z.type,b.Z.value,b.Z.label)};
u.prototype.stepUnaryExpression=function(a,b,c){if(!b.R)return b.R=!0,a=new v(c.argument,b.scope),a.la="delete"===c.operator,a;a.pop();var d=b.value;if("-"===c.operator)d=-d;else if("+"===c.operator)d=+d;else if("!"===c.operator)d=!d;else if("~"===c.operator)d=~d;else if("delete"===c.operator){c=!0;if(Array.isArray(d)){var e=d[0];e===Ha&&(e=b.scope);d=String(d[1]);try{delete e.g[d]}catch(g){b.scope.O?L(this,this.l,"Cannot delete property '"+d+"' of '"+e+"'"):c=!1}}d=c}else if("typeof"===c.operator)d=
d&&"Function"===d.I?"function":typeof d;else if("void"===c.operator)d=void 0;else throw SyntaxError("Unknown unary operator: "+c.operator);a[a.length-1].value=d};
u.prototype.stepUpdateExpression=function(a,b,c){if(!b.da)return b.da=!0,a=new v(c.argument,b.scope),a.la=!0,a;b.xa||(b.xa=b.value);b.sa&&(b.ea=b.value);if(!b.sa){var d=fd(this,b.xa);b.ea=d;if(this.M)return b.sa=!0,id(this,d,b.xa)}if(b.na)a.pop(),a[a.length-1].value=b.bb;else{d=Number(b.ea);if("++"===c.operator)var e=d+1;else if("--"===c.operator)e=d-1;else throw SyntaxError("Unknown update expression: "+c.operator);c=c.prefix?e:d;if(d=gd(this,b.xa,e))return b.na=!0,b.bb=c,jd(this,d,b.xa,e);a.pop();
a[a.length-1].value=c}};u.prototype.stepVariableDeclaration=function(a,b,c){c=c.declarations;var d=b.v||0,e=c[d];b.sb&&e&&(ed(this,e.id.name,b.value),b.sb=!1,e=c[++d]);for(;e;){if(e.init)return b.v=d,b.sb=!0,b.Ga=e.id.name,new v(e.init,b.scope);e=c[++d]}a.pop()};u.prototype.stepWithStatement=function(a,b,c){if(b.ta)if(b.Hb)a.pop();else return b.Hb=!0,a=cd(this,b.scope,b.value),new v(c.body,a);else return b.ta=!0,new v(c.object,b.scope)};u.prototype.stepWhileStatement=u.prototype.stepDoWhileStatement;
this.Interpreter=u;u.prototype.step=u.prototype.step;u.prototype.run=u.prototype.ub;u.prototype.appendCode=u.prototype.Ab;u.prototype.createObject=u.prototype.ra;u.prototype.createObjectProto=u.prototype.o;u.prototype.createAsyncFunction=u.prototype.kb;u.prototype.createNativeFunction=u.prototype.h;u.prototype.getProperty=u.prototype.D;u.prototype.setProperty=u.prototype.setProperty;u.prototype.nativeToPseudo=u.prototype.za;u.prototype.pseudoToNative=u.prototype.N;