// Acorn: Copyright 2012 Marijn Haverbeke, MIT License
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(b.A=id(this,b.A)),b.value=d.Ka.apply(b.A,b.F);else if(d.Ra){var l=this;g=d.Ra.length-1;g=b.F.concat(Array(g)).slice(0,g);g.push(function(t){b.value=t;l.Aa=!1});this.Aa=!0;b.scope.O||(b.A=id(this,b.A));d.Ra.apply(b.A,g)}else L(this,this.l,d.G+" is not callable")}};u.prototype.stepCatchClause=function(a,b,c){if(b.R)a.pop();else return b.R=!0,a=ad(this,b.scope),this.setProperty(a.object,c.param.name,b.Yb),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){fd(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.$&&(b.value=!0,b.$=!0);if(!b.$)return b.$=!0,new v(c.test,b.scope);if(!b.value)a.pop();else if(c.body)return b.$=!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.o=b.value,b.cb=Object.create(null));if(void 0===b.Ia)a:for(;;){if(b.o instanceof F)for(b.pa||(b.pa=Object.getOwnPropertyNames(b.o.g));;){var d=b.pa.shift();if(void 0===d)break;if(Object.prototype.hasOwnProperty.call(b.o.g,
d)&&!b.cb[d]&&(b.cb[d]=!0,Object.prototype.propertyIsEnumerable.call(b.o.g,d))){b.Ia=d;break a}}else if(null!==b.o&&void 0!==b.o)for(b.pa||(b.pa=Object.getOwnPropertyNames(b.o));;){d=b.pa.shift();if(void 0===d)break;b.cb[d]=!0;if(Object.prototype.propertyIsEnumerable.call(b.o,d)){b.Ia=d;break a}}b.o=zc(this,b.o);b.pa=null;if(null===b.o){a.pop();return}}if(!b.nb)if(b.nb=!0,a=c.left,"VariableDeclaration"===a.type)b.ga=[Ga,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=ed(this,b.ga,a)))return hd(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=Pb(this,c,b.scope,b.Ga)};u.prototype.stepIdentifier=function(a,b,c){a.pop();if(b.la)a[a.length-1].value=[Ga,c.name];else{b=bd(this,c.name);if(this.M)return gd(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.m(this.Ea),Gc(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.ba)return b.ba=!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.o=b.value,b.Lb=!0,new v(c.property,b.scope);else b.o=b.value,c=c.property.name;a.pop();if(b.la)a[a.length-1].value=[b.o,c];else{c=this.L(b.o,c);if(this.M)return gd(this,c,b.o);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.o){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.o=this.m(this.H),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.o,l,Ha,{configurable:!0,enumerable:!0,
get:c.get,set:c.set}):this.setProperty(b.o,l,c.init);a.pop();a[a.length-1].value=b.o};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);fd(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.$)return b.$=1,new v(c.discriminant,b.scope);1===b.$&&(b.$=2,b.Xb=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.xb&&e.test)return b.xb=!0,new v(e.test,b.scope);if(b.ya||b.value===b.Xb){b.ya=!0;var g=b.v||0;if(e.consequent[g])return b.Pb=!0,b.v=g+1,new v(e.consequent[g],b.scope)}b.xb=!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=bd(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.Y&&4===b.Y.type&&!b.Jb&&c.handler)return b.Jb=!0,a=new v(c.handler,b.scope),a.Yb=b.Y.value,b.Y=void 0,a;if(!b.Ib&&c.finalizer)return b.Ib=!0,new v(c.finalizer,b.scope);a.pop();b.Y&&fd(this,b.Y.type,b.Y.value,b.Y.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===Ga&&(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.G?"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.ba)return b.ba=!0,a=new v(c.argument,b.scope),a.la=!0,a;b.xa||(b.xa=b.value);b.sa&&(b.da=b.value);if(!b.sa){var d=dd(this,b.xa);b.da=d;if(this.M)return b.sa=!0,gd(this,d,b.xa)}if(b.na)a.pop(),a[a.length-1].value=b.bb;else{d=Number(b.da);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=ed(this,b.xa,e))return b.na=!0,b.bb=c,hd(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&&(cd(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=ad(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.Bb;u.prototype.createObject=u.prototype.ra;u.prototype.createObjectProto=u.prototype.m;u.prototype.createAsyncFunction=u.prototype.kb;u.prototype.createNativeFunction=u.prototype.h;u.prototype.getProperty=u.prototype.L;u.prototype.setProperty=u.prototype.setProperty;u.prototype.nativeToPseudo=u.prototype.za;u.prototype.pseudoToNative=u.prototype.N;
