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e=void 0;b?e=!1:(b={start:0},e=!0);var f=this.start,g=this.startLoc;(this.type==d.parenL||this.type==d.name)&&(this.potentialArrowAt=this.start);var h=this.parseMaybeConditional(a,b);if(c&&(h=c.call(this,h,f,g)),this.type.isAssign){var i=this.startNodeAt(f,g);return i.operator=this.value,i.left=this.type===d.eq?this.toAssignable(h):h,b.start=0,this.checkLVal(h),this.next(),i.right=this.parseMaybeAssign(a),this.finishNode(i,"AssignmentExpression")}return e&&b.start&&this.unexpected(b.start),h},h.parseMaybeConditional=function(a,b){var c=this.start,e=this.startLoc,f=this.parseExprOps(a,b);if(b&&b.start)return f;if(this.eat(d.question)){var g=this.startNodeAt(c,e);return g.test=f,g.consequent=this.parseMaybeAssign(),this.expect(d.colon),g.alternate=this.parseMaybeAssign(a),this.finishNode(g,"ConditionalExpression")}return f},h.parseExprOps=function(a,b){var c=this.start,d=this.startLoc,e=this.parseMaybeUnary(b);return 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e=this.start,f=this.startLoc,g=this.parseExprSubscripts(a);if(a&&a.start)return g;for(;this.type.postfix&&!this.canInsertSemicolon();){var b=this.startNodeAt(e,f);b.operator=this.value,b.prefix=!1,b.argument=g,this.checkLVal(g),this.next(),g=this.finishNode(b,"UpdateExpression")}return g},h.parseExprSubscripts=function(a){var b=this.start,c=this.startLoc,d=this.parseExprAtom(a);return a&&a.start?d:this.parseSubscripts(d,b,c)},h.parseSubscripts=function(a,b,c,e){for(Array.isArray(b)&&this.options.locations&&void 0===e&&(e=c,c=b[1],b=b[0]);;)if(this.eat(d.dot)){var f=this.startNodeAt(b,c);f.object=a,f.property=this.parseIdent(!0),f.computed=!1,a=this.finishNode(f,"MemberExpression")}else if(this.eat(d.bracketL)){var f=this.startNodeAt(b,c);f.object=a,f.property=this.parseExpression(),f.computed=!0,this.expect(d.bracketR),a=this.finishNode(f,"MemberExpression")}else if(!e&&this.eat(d.parenL)){var f=this.startNodeAt(b,c);f.callee=a,f.arguments=this.parseExprList(d.parenR,!1),a=this.finishNode(f,"CallExpression")}else{if(this.type!==d.backQuote)return a;var f=this.startNodeAt(b,c);f.tag=a,f.quasi=this.parseTemplate(),a=this.finishNode(f,"TaggedTemplateExpression")}},h.parseExprAtom=function(a){var b=void 0,c=this.potentialArrowAt==this.start;switch(this.type){case d._this:case d._super:var e=this.type===d._this?"ThisExpression":"Super";return b=this.startNode(),this.next(),this.finishNode(b,e);case d._yield:this.inGenerator&&this.unexpected();case d.name:var f=this.start,g=this.startLoc,h=this.parseIdent(this.type!==d.name);return c&&!this.canInsertSemicolon()&&this.eat(d.arrow)?this.parseArrowExpression(this.startNodeAt(f,g),[h]):h;case d.regexp:var i=this.value;return b=this.parseLiteral(i.value),b.regex={pattern:i.pattern,flags:i.flags},b;case d.num:case d.string:return this.parseLiteral(this.value);case d._null:case d._true:case d._false:return b=this.startNode(),b.value=this.type===d._null?null:this.type===d._true,b.raw=this.type.keyword,this.next(),this.finishNode(b,"Literal");case d.parenL:return this.parseParenAndDistinguishExpression(c);case d.bracketL:return b=this.startNode(),this.next(),this.options.ecmaVersion>=7&&this.type===d._for?this.parseComprehension(b,!1):(b.elements=this.parseExprList(d.bracketR,!0,!0,a),this.finishNode(b,"ArrayExpression"));case d.braceL:return this.parseObj(!1,a);case d._function:return b=this.startNode(),this.next(),this.parseFunction(b,!1);case d._class:return this.parseClass(this.startNode(),!1);case d._new:return this.parseNew();case d.backQuote:return this.parseTemplate();default:this.unexpected()}},h.parseLiteral=function(a){var b=this.startNode();return b.value=a,b.raw=this.input.slice(this.start,this.end),this.next(),this.finishNode(b,"Literal")},h.parseParenExpression=function(){this.expect(d.parenL);var a=this.parseExpression();return this.expect(d.parenR),a},h.parseParenAndDistinguishExpression=function(a){var b=this.start,c=this.startLoc,e=void 0;if(this.options.ecmaVersion>=6){if(this.next(),this.options.ecmaVersion>=7&&this.type===d._for)return this.parseComprehension(this.startNodeAt(b,c),!0);for(var f=this.start,g=this.startLoc,h=[],i=!0,j={start:0},k=void 0,l=void 0;this.type!==d.parenR;){if(i?i=!1:this.expect(d.comma),this.type===d.ellipsis){k=this.start,h.push(this.parseParenItem(this.parseRest()));break}this.type!==d.parenL||l||(l=this.start),h.push(this.parseMaybeAssign(!1,j,this.parseParenItem))}var m=this.start,n=this.startLoc;if(this.expect(d.parenR),a&&!this.canInsertSemicolon()&&this.eat(d.arrow))return l&&this.unexpected(l),this.parseParenArrowList(b,c,h);h.length||this.unexpected(this.lastTokStart),k&&this.unexpected(k),j.start&&this.unexpected(j.start),h.length>1?(e=this.startNodeAt(f,g),e.expressions=h,this.finishNodeAt(e,"SequenceExpression",m,n)):e=h[0]}else e=this.parseParenExpression();if(this.options.preserveParens){var o=this.startNodeAt(b,c);return o.expression=e,this.finishNode(o,"ParenthesizedExpression")}return e},h.parseParenItem=function(a){return a},h.parseParenArrowList=function(a,b,c){return this.parseArrowExpression(this.startNodeAt(a,b),c)};var i=[];h.parseNew=function(){var a=this.startNode(),b=this.parseIdent(!0);if(this.options.ecmaVersion>=6&&this.eat(d.dot))return a.meta=b,a.property=this.parseIdent(!0),"target"!==a.property.name&&this.raise(a.property.start,"The only valid meta property for new is new.target"),this.finishNode(a,"MetaProperty");var c=this.start,e=this.startLoc;return a.callee=this.parseSubscripts(this.parseExprAtom(),c,e,!0),this.eat(d.parenL)?a.arguments=this.parseExprList(d.parenR,!1):a.arguments=i,this.finishNode(a,"NewExpression")},h.parseTemplateElement=function(){var a=this.startNode();return a.value={raw:this.input.slice(this.start,this.end),cooked:this.value},this.next(),a.tail=this.type===d.backQuote,this.finishNode(a,"TemplateElement")},h.parseTemplate=function(){var a=this.startNode();this.next(),a.expressions=[];var b=this.parseTemplateElement();for(a.quasis=[b];!b.tail;)this.expect(d.dollarBraceL),a.expressions.push(this.parseExpression()),this.expect(d.braceR),a.quasis.push(b=this.parseTemplateElement());return this.next(),this.finishNode(a,"TemplateLiteral")},h.parseObj=function(a,b){var c=this.startNode(),e=!0,f={};for(c.properties=[],this.next();!this.eat(d.braceR);){if(e)e=!1;else if(this.expect(d.comma),this.afterTrailingComma(d.braceR))break;var g=this.startNode(),h=void 0,i=void 0,j=void 0;this.options.ecmaVersion>=6&&(g.method=!1,g.shorthand=!1,(a||b)&&(i=this.start,j=this.startLoc),a||(h=this.eat(d.star))),this.parsePropertyName(g),this.parsePropertyValue(g,a,h,i,j,b),this.checkPropClash(g,f),c.properties.push(this.finishNode(g,"Property"))}return this.finishNode(c,a?"ObjectPattern":"ObjectExpression")},h.parsePropertyValue=function(a,b,c,e,g,h){this.eat(d.colon)?(a.value=b?this.parseMaybeDefault(this.start,this.startLoc):this.parseMaybeAssign(!1,h),a.kind="init"):this.options.ecmaVersion>=6&&this.type===d.parenL?(b&&this.unexpected(),a.kind="init",a.method=!0,a.value=this.parseMethod(c)):this.options.ecmaVersion>=5&&!a.computed&&"Identifier"===a.key.type&&("get"===a.key.name||"set"===a.key.name)&&this.type!=d.comma&&this.type!=d.braceR?((c||b)&&this.unexpected(),a.kind=a.key.name,this.parsePropertyName(a),a.value=this.parseMethod(!1)):this.options.ecmaVersion>=6&&!a.computed&&"Identifier"===a.key.type?(a.kind="init",b?((this.isKeyword(a.key.name)||this.strict&&(f.strictBind(a.key.name)||f.strict(a.key.name))||!this.options.allowReserved&&this.isReservedWord(a.key.name))&&this.raise(a.key.start,"Binding "+a.key.name),a.value=this.parseMaybeDefault(e,g,a.key)):this.type===d.eq&&h?(h.start||(h.start=this.start),a.value=this.parseMaybeDefault(e,g,a.key)):a.value=a.key,a.shorthand=!0):this.unexpected()},h.parsePropertyName=function(a){if(this.options.ecmaVersion>=6){if(this.eat(d.bracketL))return a.computed=!0,a.key=this.parseMaybeAssign(),this.expect(d.bracketR),a.key;a.computed=!1}return a.key=this.type===d.num||this.type===d.string?this.parseExprAtom():this.parseIdent(!0)},h.initFunction=function(a){a.id=null,this.options.ecmaVersion>=6&&(a.generator=!1,a.expression=!1)},h.parseMethod=function(a){var b=this.startNode();this.initFunction(b),this.expect(d.parenL),b.params=this.parseBindingList(d.parenR,!1,!1);var c=void 0;return this.options.ecmaVersion>=6?(b.generator=a,c=!0):c=!1,this.parseFunctionBody(b,c),this.finishNode(b,"FunctionExpression")},h.parseArrowExpression=function(a,b){return 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c=this.startNode(),e=!1;for(c.body=[],this.expect(d.braceL);!this.eat(d.braceR);)if(!this.eat(d.semi)){var f=this.startNode(),g=this.eat(d.star),h=this.type===d.name&&"static"===this.value;if(this.parsePropertyName(f),f["static"]=h&&this.type!==d.parenL,f["static"]&&(g&&this.unexpected(),g=this.eat(d.star),this.parsePropertyName(f)),f.kind="method",!f.computed){var i=f.key,j=!1;g||"Identifier"!==i.type||this.type===d.parenL||"get"!==i.name&&"set"!==i.name||(j=!0,f.kind=i.name,i=this.parsePropertyName(f)),!f["static"]&&("Identifier"===i.type&&"constructor"===i.name||"Literal"===i.type&&"constructor"===i.value)&&(e&&this.raise(i.start,"Duplicate constructor in the same class"),j&&this.raise(i.start,"Constructor can't have get/set modifier"),g&&this.raise(i.start,"Constructor can't be a generator"),f.kind="constructor",e=!0)}this.parseClassMethod(c,f,g)}return a.body=this.finishNode(c,"ClassBody"),this.finishNode(a,b?"ClassDeclaration":"ClassExpression")},g.parseClassMethod=function(a,b,c){b.value=this.parseMethod(c),a.body.push(this.finishNode(b,"MethodDefinition"))},g.parseClassId=function(a,b){a.id=this.type===d.name?this.parseIdent():b?this.unexpected():null},g.parseClassSuper=function(a){a.superClass=this.eat(d._extends)?this.parseExprSubscripts():null},g.parseExport=function(a){if(this.next(),this.eat(d.star))return this.expectContextual("from"),a.source=this.type===d.string?this.parseExprAtom():this.unexpected(),this.semicolon(),this.finishNode(a,"ExportAllDeclaration");if(this.eat(d._default)){var b=this.parseMaybeAssign(),c=!0;return("FunctionExpression"==b.type||"ClassExpression"==b.type)&&(c=!1,b.id&&(b.type="FunctionExpression"==b.type?"FunctionDeclaration":"ClassDeclaration")),a.declaration=b,c&&this.semicolon(),this.finishNode(a,"ExportDefaultDeclaration")}return this.shouldParseExportStatement()?(a.declaration=this.parseStatement(!0),a.specifiers=[],a.source=null):(a.declaration=null,a.specifiers=this.parseExportSpecifiers(),this.eatContextual("from")?a.source=this.type===d.string?this.parseExprAtom():this.unexpected():a.source=null,this.semicolon()),this.finishNode(a,"ExportNamedDeclaration")},g.shouldParseExportStatement=function(){return this.type.keyword},g.parseExportSpecifiers=function(){var a=[],b=!0;for(this.expect(d.braceL);!this.eat(d.braceR);){if(b)b=!1;else if(this.expect(d.comma),this.afterTrailingComma(d.braceR))break;var c=this.startNode();c.local=this.parseIdent(this.type===d._default),c.exported=this.eatContextual("as")?this.parseIdent(!0):c.local,a.push(this.finishNode(c,"ExportSpecifier"))}return a},g.parseImport=function(a){return this.next(),this.type===d.string?(a.specifiers=j,a.source=this.parseExprAtom(),a.kind=""):(a.specifiers=this.parseImportSpecifiers(),this.expectContextual("from"),a.source=this.type===d.string?this.parseExprAtom():this.unexpected()),this.semicolon(),this.finishNode(a,"ImportDeclaration")},g.parseImportSpecifiers=function(){var a=[],b=!0;if(this.type===d.name){var c=this.startNode();if(c.local=this.parseIdent(),this.checkLVal(c.local,!0),a.push(this.finishNode(c,"ImportDefaultSpecifier")),!this.eat(d.comma))return a}if(this.type===d.star){var c=this.startNode();return this.next(),this.expectContextual("as"),c.local=this.parseIdent(),this.checkLVal(c.local,!0),a.push(this.finishNode(c,"ImportNamespaceSpecifier")),a}for(this.expect(d.braceL);!this.eat(d.braceR);){if(b)b=!1;else if(this.expect(d.comma),this.afterTrailingComma(d.braceR))break;var c=this.startNode();c.imported=this.parseIdent(!0),c.local=this.eatContextual("as")?this.parseIdent():c.imported,this.checkLVal(c.local,!0),a.push(this.finishNode(c,"ImportSpecifier"))}return a}},{"./state":13,"./tokentype":17,"./whitespace":19}],15:[function(a,b,c){"use strict";var d=function(a,b){if(!(a instanceof b))throw new TypeError("Cannot call a class as a function")};c.__esModule=!0;var e=a("./state").Parser,f=a("./tokentype").types,g=a("./whitespace").lineBreak,h=c.TokContext=function k(a,b,c,e){d(this,k),this.token=a,this.isExpr=b,this.preserveSpace=c,this.override=e},i={b_stat:new h("{",!1),b_expr:new h("{",!0),b_tmpl:new h("${",!0),p_stat:new h("(",!1),p_expr:new h("(",!0),q_tmpl:new h("`",!0,!0,function(a){return a.readTmplToken()}),f_expr:new h("function",!0)};c.types=i;var j=e.prototype;j.initialContext=function(){return[i.b_stat]},j.braceIsBlock=function(a){var b=void 0;return a===f.colon&&"{"==(b=this.curContext()).token?!b.isExpr:a===f._return?g.test(this.input.slice(this.lastTokEnd,this.start)):a===f._else||a===f.semi||a===f.eof?!0:a==f.braceL?this.curContext()===i.b_stat:!this.exprAllowed},j.updateContext=function(a){var b=void 0,c=this.type;c.keyword&&a==f.dot?this.exprAllowed=!1:(b=c.updateContext)?b.call(this,a):this.exprAllowed=c.beforeExpr},f.parenR.updateContext=f.braceR.updateContext=function(){if(1==this.context.length)return void(this.exprAllowed=!0);var a=this.context.pop();a===i.b_stat&&this.curContext()===i.f_expr?(this.context.pop(),this.exprAllowed=!1):a===i.b_tmpl?this.exprAllowed=!0:this.exprAllowed=!a.isExpr},f.braceL.updateContext=function(a){this.context.push(this.braceIsBlock(a)?i.b_stat:i.b_expr),this.exprAllowed=!0},f.dollarBraceL.updateContext=function(){this.context.push(i.b_tmpl),this.exprAllowed=!0},f.parenL.updateContext=function(a){var b=a===f._if||a===f._for||a===f._with||a===f._while;this.context.push(b?i.p_stat:i.p_expr),this.exprAllowed=!0},f.incDec.updateContext=function(){},f._function.updateContext=function(){this.curContext()!==i.b_stat&&this.context.push(i.f_expr),this.exprAllowed=!1},f.backQuote.updateContext=function(){this.curContext()===i.q_tmpl?this.context.pop():this.context.push(i.q_tmpl),this.exprAllowed=!1}},{"./state":13,"./tokentype":17,"./whitespace":19}],16:[function(a,b,c){"use strict";function d(a){return 65535>=a?String.fromCharCode(a):String.fromCharCode((a-65536>>10)+55296,(a-65536&1023)+56320)}var e=function(a,b){if(!(a instanceof b))throw new TypeError("Cannot call a class as a function")};c.__esModule=!0;var f=a("./identifier"),g=f.isIdentifierStart,h=f.isIdentifierChar,i=a("./tokentype"),j=i.types,k=i.keywords,l=a("./state").Parser,m=a("./location").SourceLocation,n=a("./whitespace"),o=n.lineBreak,p=n.lineBreakG,q=n.isNewLine,r=n.nonASCIIwhitespace,s=c.Token=function y(a){e(this,y),this.type=a.type,this.value=a.value,this.start=a.start,this.end=a.end,a.options.locations&&(this.loc=new m(a,a.startLoc,a.endLoc)),a.options.ranges&&(this.range=[a.start,a.end])},t=l.prototype,u="undefined"!=typeof Packages;t.next=function(){this.options.onToken&&this.options.onToken(new s(this)),this.lastTokEnd=this.end,this.lastTokStart=this.start,this.lastTokEndLoc=this.endLoc,this.lastTokStartLoc=this.startLoc,this.nextToken()},t.getToken=function(){return this.next(),new s(this)},"undefined"!=typeof Symbol&&(t[Symbol.iterator]=function(){var a=this;return{next:function(){var b=a.getToken();return{done:b.type===j.eof,value:b}}}}),t.setStrict=function(a){if(this.strict=a,this.type===j.num||this.type===j.string){if(this.pos=this.start,this.options.locations)for(;this.pos=this.input.length?this.finishToken(j.eof):a.override?a.override(this):void this.readToken(this.fullCharCodeAtPos())},t.readToken=function(a){return g(a,this.options.ecmaVersion>=6)||92===a?this.readWord():this.getTokenFromCode(a)},t.fullCharCodeAtPos=function(){var a=this.input.charCodeAt(this.pos);if(55295>=a||a>=57344)return a;var b=this.input.charCodeAt(this.pos+1);return(a<<10)+b-56613888},t.skipBlockComment=function(){var a=this.options.onComment&&this.options.locations&&this.curPosition(),b=this.pos,c=this.input.indexOf("*/",this.pos+=2);if(-1===c&&this.raise(this.pos-2,"Unterminated comment"),this.pos=c+2,this.options.locations){p.lastIndex=b;for(var d=void 0;(d=p.exec(this.input))&&d.index8&&14>a)++this.pos;else if(47===a){var b=this.input.charCodeAt(this.pos+1);if(42===b)this.skipBlockComment();else{if(47!==b)break;this.skipLineComment(2)}}else if(160===a)++this.pos;else{if(!(a>=5760&&r.test(String.fromCharCode(a))))break;++this.pos}}},t.finishToken=function(a,b){this.end=this.pos,this.options.locations&&(this.endLoc=this.curPosition());var c=this.type;this.type=a,this.value=b,this.updateContext(c)},t.readToken_dot=function(){var a=this.input.charCodeAt(this.pos+1);if(a>=48&&57>=a)return this.readNumber(!0);var b=this.input.charCodeAt(this.pos+2);return this.options.ecmaVersion>=6&&46===a&&46===b?(this.pos+=3,this.finishToken(j.ellipsis)):(++this.pos,this.finishToken(j.dot))},t.readToken_slash=function(){var a=this.input.charCodeAt(this.pos+1);return this.exprAllowed?(++this.pos,this.readRegexp()):61===a?this.finishOp(j.assign,2):this.finishOp(j.slash,1)},t.readToken_mult_modulo=function(a){var b=this.input.charCodeAt(this.pos+1);return 61===b?this.finishOp(j.assign,2):this.finishOp(42===a?j.star:j.modulo,1)},t.readToken_pipe_amp=function(a){var b=this.input.charCodeAt(this.pos+1);return b===a?this.finishOp(124===a?j.logicalOR:j.logicalAND,2):61===b?this.finishOp(j.assign,2):this.finishOp(124===a?j.bitwiseOR:j.bitwiseAND,1)},t.readToken_caret=function(){var a=this.input.charCodeAt(this.pos+1);return 61===a?this.finishOp(j.assign,2):this.finishOp(j.bitwiseXOR,1)},t.readToken_plus_min=function(a){var b=this.input.charCodeAt(this.pos+1);return b===a?45==b&&62==this.input.charCodeAt(this.pos+2)&&o.test(this.input.slice(this.lastTokEnd,this.pos))?(this.skipLineComment(3),this.skipSpace(),this.nextToken()):this.finishOp(j.incDec,2):61===b?this.finishOp(j.assign,2):this.finishOp(j.plusMin,1)},t.readToken_lt_gt=function(a){var b=this.input.charCodeAt(this.pos+1),c=1;return b===a?(c=62===a&&62===this.input.charCodeAt(this.pos+2)?3:2,61===this.input.charCodeAt(this.pos+c)?this.finishOp(j.assign,c+1):this.finishOp(j.bitShift,c)):33==b&&60==a&&45==this.input.charCodeAt(this.pos+2)&&45==this.input.charCodeAt(this.pos+3)?(this.inModule&&this.unexpected(),this.skipLineComment(4),this.skipSpace(),this.nextToken()):(61===b&&(c=61===this.input.charCodeAt(this.pos+2)?3:2),this.finishOp(j.relational,c))},t.readToken_eq_excl=function(a){var b=this.input.charCodeAt(this.pos+1);return 61===b?this.finishOp(j.equality,61===this.input.charCodeAt(this.pos+2)?3:2):61===a&&62===b&&this.options.ecmaVersion>=6?(this.pos+=2,this.finishToken(j.arrow)):this.finishOp(61===a?j.eq:j.prefix,1)},t.getTokenFromCode=function(a){switch(a){case 46:return this.readToken_dot();case 40:return++this.pos,this.finishToken(j.parenL);case 41:return++this.pos,this.finishToken(j.parenR);case 59:return++this.pos,this.finishToken(j.semi);case 44:return++this.pos,this.finishToken(j.comma);case 91:return++this.pos,this.finishToken(j.bracketL);case 93:return++this.pos,this.finishToken(j.bracketR);case 123:return++this.pos,this.finishToken(j.braceL);case 125:return++this.pos,this.finishToken(j.braceR);case 58:return++this.pos,this.finishToken(j.colon);case 63:return++this.pos,this.finishToken(j.question);case 96:if(this.options.ecmaVersion<6)break;return++this.pos,this.finishToken(j.backQuote);case 48:var b=this.input.charCodeAt(this.pos+1);if(120===b||88===b)return this.readRadixNumber(16);if(this.options.ecmaVersion>=6){if(111===b||79===b)return this.readRadixNumber(8);if(98===b||66===b)return this.readRadixNumber(2)}case 49:case 50:case 51:case 52:case 53:case 54:case 55:case 56:case 57:return this.readNumber(!1);case 34:case 39:return this.readString(a);case 47:return this.readToken_slash();case 37:case 42:return this.readToken_mult_modulo(a);case 124:case 38:return this.readToken_pipe_amp(a);case 94:return this.readToken_caret();case 43:case 45:return this.readToken_plus_min(a);case 60:case 62:return this.readToken_lt_gt(a);case 61:case 33:return this.readToken_eq_excl(a);case 126:return this.finishOp(j.prefix,1)}this.raise(this.pos,"Unexpected character '"+d(a)+"'")},t.finishOp=function(a,b){var c=this.input.slice(this.pos,this.pos+b);return this.pos+=b,this.finishToken(a,c)};var v=!1;try{new RegExp("￿","u"),v=!0}catch(w){}t.readRegexp=function(){for(var a=void 0,b=void 0,c=this.pos;;){this.pos>=this.input.length&&this.raise(c,"Unterminated regular expression");var d=this.input.charAt(this.pos);if(o.test(d)&&this.raise(c,"Unterminated regular expression"),a)a=!1;else{if("["===d)b=!0;else if("]"===d&&b)b=!1;else if("/"===d&&!b)break;a="\\"===d}++this.pos}var e=this.input.slice(c,this.pos);++this.pos;var f=this.readWord1(),g=e;if(f){var h=/^[gmsiy]*$/;this.options.ecmaVersion>=6&&(h=/^[gmsiyu]*$/),h.test(f)||this.raise(c,"Invalid regular expression flag"),f.indexOf("u")>=0&&!v&&(g=g.replace(/\\u([a-fA-F0-9]{4})|\\u\{([0-9a-fA-F]+)\}|[\uD800-\uDBFF][\uDC00-\uDFFF]/g,"x"))}var i=null;if(!u){try{new RegExp(g)}catch(k){k instanceof SyntaxError&&this.raise(c,"Error parsing regular expression: "+k.message),this.raise(k)}try{i=new RegExp(e,f)}catch(l){}}return this.finishToken(j.regexp,{pattern:e,flags:f,value:i})},t.readInt=function(a,b){for(var c=this.pos,d=0,e=0,f=null==b?1/0:b;f>e;++e){var g=this.input.charCodeAt(this.pos),h=void 0;if(h=g>=97?g-97+10:g>=65?g-65+10:g>=48&&57>=g?g-48:1/0,h>=a)break;++this.pos,d=d*a+h}return this.pos===c||null!=b&&this.pos-c!==b?null:d},t.readRadixNumber=function(a){this.pos+=2;var b=this.readInt(a);return null==b&&this.raise(this.start+2,"Expected number in radix "+a),g(this.fullCharCodeAtPos())&&this.raise(this.pos,"Identifier directly after number"),this.finishToken(j.num,b)},t.readNumber=function(a){var b=this.pos,c=!1,d=48===this.input.charCodeAt(this.pos);a||null!==this.readInt(10)||this.raise(b,"Invalid number"),46===this.input.charCodeAt(this.pos)&&(++this.pos,this.readInt(10),c=!0);var e=this.input.charCodeAt(this.pos);(69===e||101===e)&&(e=this.input.charCodeAt(++this.pos),(43===e||45===e)&&++this.pos,null===this.readInt(10)&&this.raise(b,"Invalid number"),c=!0),g(this.fullCharCodeAtPos())&&this.raise(this.pos,"Identifier directly after number");var f=this.input.slice(b,this.pos),h=void 0;return c?h=parseFloat(f):d&&1!==f.length?/[89]/.test(f)||this.strict?this.raise(b,"Invalid number"):h=parseInt(f,8):h=parseInt(f,10),this.finishToken(j.num,h)},t.readCodePoint=function(){var a=this.input.charCodeAt(this.pos),b=void 0;return 123===a?(this.options.ecmaVersion<6&&this.unexpected(),++this.pos,b=this.readHexChar(this.input.indexOf("}",this.pos)-this.pos),++this.pos,b>1114111&&this.unexpected()):b=this.readHexChar(4),b},t.readString=function(a){for(var b="",c=++this.pos;;){this.pos>=this.input.length&&this.raise(this.start,"Unterminated string constant");var d=this.input.charCodeAt(this.pos);if(d===a)break;92===d?(b+=this.input.slice(c,this.pos),b+=this.readEscapedChar(),c=this.pos):(q(d)&&this.raise(this.start,"Unterminated string constant"),++this.pos)}return b+=this.input.slice(c,this.pos++),this.finishToken(j.string,b)},t.readTmplToken=function(){for(var a="",b=this.pos;;){this.pos>=this.input.length&&this.raise(this.start,"Unterminated template");var c=this.input.charCodeAt(this.pos);if(96===c||36===c&&123===this.input.charCodeAt(this.pos+1))return this.pos===this.start&&this.type===j.template?36===c?(this.pos+=2,this.finishToken(j.dollarBraceL)):(++this.pos,this.finishToken(j.backQuote)):(a+=this.input.slice(b,this.pos),this.finishToken(j.template,a));92===c?(a+=this.input.slice(b,this.pos),a+=this.readEscapedChar(),b=this.pos):q(c)?(a+=this.input.slice(b,this.pos),++this.pos,13===c&&10===this.input.charCodeAt(this.pos)?(++this.pos,a+="\n"):a+=String.fromCharCode(c),this.options.locations&&(++this.curLine,this.lineStart=this.pos),b=this.pos):++this.pos}},t.readEscapedChar=function(){var a=this.input.charCodeAt(++this.pos),b=/^[0-7]+/.exec(this.input.slice(this.pos,this.pos+3));for(b&&(b=b[0]);b&&parseInt(b,8)>255;)b=b.slice(0,-1);if("0"===b&&(b=null),++this.pos,b)return this.strict&&this.raise(this.pos-2,"Octal literal in strict mode"),this.pos+=b.length-1,String.fromCharCode(parseInt(b,8));switch(a){case 110:return"\n";case 114:return"\r";case 120:return String.fromCharCode(this.readHexChar(2));case 117:return d(this.readCodePoint());case 116:return" ";case 98:return"\b";case 118:return"\x0B";case 102:return"\f";case 48:return"\x00";case 13:10===this.input.charCodeAt(this.pos)&&++this.pos;case 10:return this.options.locations&&(this.lineStart=this.pos,++this.curLine),"";default:return String.fromCharCode(a)}},t.readHexChar=function(a){var b=this.readInt(16,a);return null===b&&this.raise(this.start,"Bad character escape sequence"),b};var x;t.readWord1=function(){x=!1;for(var a="",b=!0,c=this.pos,e=this.options.ecmaVersion>=6;this.pos=f?1:2;else{if(92!==f)break;x=!0,a+=this.input.slice(c,this.pos);var i=this.pos;117!=this.input.charCodeAt(++this.pos)&&this.raise(this.pos,"Expecting Unicode escape sequence \\uXXXX"),++this.pos;var j=this.readCodePoint();(b?g:h)(j,e)||this.raise(i,"Invalid Unicode escape"),a+=d(j),c=this.pos}b=!1}return a+this.input.slice(c,this.pos)},t.readWord=function(){var a=this.readWord1(),b=j.name;return(this.options.ecmaVersion>=6||!x)&&this.isKeyword(a)&&(b=k[a]),this.finishToken(b,a)}},{"./identifier":7,"./location":8,"./state":13,"./tokentype":17,"./whitespace":19}],17:[function(a,b,c){"use strict";function d(a,b){return new g(a,{beforeExpr:!0,binop:b})}function e(a){var b=void 0===arguments[1]?{}:arguments[1];b.keyword=a,k[a]=j["_"+a]=new g(a,b)}var f=function(a,b){if(!(a instanceof b))throw new TypeError("Cannot call a class as a function")};c.__esModule=!0;var g=c.TokenType=function l(a){var b=void 0===arguments[1]?{}:arguments[1];f(this,l),this.label=a,this.keyword=b.keyword,this.beforeExpr=!!b.beforeExpr,this.startsExpr=!!b.startsExpr,this.isLoop=!!b.isLoop,this.isAssign=!!b.isAssign,this.prefix=!!b.prefix,this.postfix=!!b.postfix,this.binop=b.binop||null,this.updateContext=null},h={beforeExpr:!0},i={startsExpr:!0},j={num:new g("num",i),regexp:new g("regexp",i),string:new g("string",i),name:new g("name",i),eof:new g("eof"),bracketL:new g("[",{beforeExpr:!0,startsExpr:!0}),bracketR:new g("]"),braceL:new g("{",{beforeExpr:!0,startsExpr:!0}),braceR:new g("}"),parenL:new g("(",{beforeExpr:!0,startsExpr:!0}),parenR:new g(")"),comma:new g(",",h),semi:new g(";",h),colon:new g(":",h),dot:new g("."),question:new g("?",h),arrow:new g("=>",h),template:new g("template"),ellipsis:new g("...",h),backQuote:new g("`",i),dollarBraceL:new g("${",{beforeExpr:!0,startsExpr:!0}),eq:new g("=",{beforeExpr:!0,isAssign:!0}),assign:new g("_=",{beforeExpr:!0,isAssign:!0}),incDec:new g("++/--",{prefix:!0,postfix:!0,startsExpr:!0}),prefix:new g("prefix",{beforeExpr:!0,prefix:!0,startsExpr:!0}),logicalOR:d("||",1),logicalAND:d("&&",2),bitwiseOR:d("|",3),bitwiseXOR:d("^",4),bitwiseAND:d("&",5),equality:d("==/!=",6),relational:d("",7),bitShift:d("<>",8),plusMin:new g("+/-",{beforeExpr:!0,binop:9,prefix:!0,startsExpr:!0}),modulo:d("%",10),star:d("*",10),slash:d("/",10)};c.types=j;var k={};c.keywords=k,e("break"),e("case",h),e("catch"),e("continue"),e("debugger"),e("default"),e("do",{isLoop:!0}),e("else",h),e("finally"),e("for",{isLoop:!0}),e("function",i),e("if"),e("return",h),e("switch"),e("throw",h),e("try"),e("var"),e("let"),e("const"),e("while",{isLoop:!0}),e("with"),e("new",{beforeExpr:!0,startsExpr:!0}),e("this",i),e("super",i),e("class"),e("extends",h),e("export"),e("import"),e("yield",{beforeExpr:!0,startsExpr:!0}),e("null",i),e("true",i),e("false",i),e("in",{beforeExpr:!0,binop:7}),e("instanceof",{beforeExpr:!0,binop:7}),e("typeof",{beforeExpr:!0,prefix:!0,startsExpr:!0}),e("void",{beforeExpr:!0,prefix:!0,startsExpr:!0}),e("delete",{beforeExpr:!0,prefix:!0,startsExpr:!0})},{}],18:[function(a,b,c){"use strict";function d(a){return"[object Array]"===Object.prototype.toString.call(a)}function e(a,b){return Object.prototype.hasOwnProperty.call(a,b)}c.isArray=d,c.has=e,c.__esModule=!0},{}],19:[function(a,b,c){"use strict";function d(a){return 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