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HTML

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HTML preprocessors can make writing HTML more powerful or convenient. For instance, Markdown is designed to be easier to write and read for text documents and you could write a loop in Pug.

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Insecure Resource

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CSS

About CSS Preprocessors

CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

Vendor Prefixing

About Vendor Prefixing

To get the best cross-browser support, it is a common practice to apply vendor prefixes to CSS properties and values that require them to work. For instance -webkit- or -moz-.

We offer two popular choices: Autoprefixer (which processes your CSS server-side) and -prefix-free (which applies prefixes via a script, client-side).

Add External Stylesheets/Pens

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You can apply CSS to your Pen from any stylesheet on the web. Just put a URL to it here and we'll apply it, in the order you have them, before the CSS in the Pen itself.

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JavaScript

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

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About External Resources

You can apply a script from anywhere on the web to your Pen. Just put a URL to it here and we'll add it, in the order you have them, before the JavaScript in the Pen itself.

If the script you link to has the file extension of a preprocessor, we'll attempt to process it before applying.

You can also link to another Pen here, and we'll pull the JavaScript from that Pen and include it. If it's using a matching preprocessor, we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.

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Packages

Add Packages

Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.

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Using packages here is powered by Skypack, which makes packages from npm not only available on a CDN, but prepares them for native JavaScript ES6 import usage.

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HTML 

              
                <div>
  <textarea id="code" placeholder="Enter JS code here..."></textarea>

  <button id="submit">Run code</button>

  <h1>Please open console panel below 👇</h1>
</div>
!

CSS 

              
                div {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  #code {
    padding: 15px;
    width: 500px;
    height: 200px;
    resize: none;
  }
  #submit {
    margin: 15px;
    padding: 10px 30px;
  }
  h1 {
    margin: 0;
  }
}
!

JS 

              
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d("+/-",{beforeExpr:!0,binop:9,prefix:!0,startsExpr:!0}),modulo:f("%",10),star:f("*",10),slash:f("/",10),starstar:new d("**",{beforeExpr:!0}),_break:v("break"),_case:v("case",m),_catch:v("catch"),_continue:v("continue"),_debugger:v("debugger"),_default:v("default",m),_do:v("do",{isLoop:!0,beforeExpr:!0}),_else:v("else",m),_finally:v("finally"),_for:v("for",{isLoop:!0}),_function:v("function",x),_if:v("if"),_return:v("return",m),_switch:v("switch"),_throw:v("throw",m),_try:v("try"),_var:v("var"),_const:v("const"),_while:v("while",{isLoop:!0}),_with:v("with"),_new:v("new",{beforeExpr:!0,startsExpr:!0}),_this:v("this",x),_super:v("super",x),_class:v("class",x),_extends:v("extends",m),_export:v("export"),_import:v("import"),_null:v("null",x),_true:v("true",x),_false:v("false",x),_in:v("in",{beforeExpr:!0,binop:7}),_instanceof:v("instanceof",{beforeExpr:!0,binop:7}),_typeof:v("typeof",{beforeExpr:!0,prefix:!0,startsExpr:!0}),_void:v("void",{beforeExpr:!0,prefix:!0,startsExpr:!0}),_delete:v("delete",{beforeExpr:!0,prefix:!0,startsExpr:!0})};exports.tokTypes=y;var _=/\r\n?|\n|\u2028|\u2029/;exports.lineBreak=_;var b=new RegExp(_.source,"g");function k(t,e){return 10===t||13===t||!e&&(8232===t||8233===t)}exports.lineBreakG=b;var S=/[\u1680\u180e\u2000-\u200a\u202f\u205f\u3000\ufeff]/;exports.nonASCIIwhitespace=S;var C=/(?:\s|\/\/.*|\/\*[^]*?\*\/)*/g,E=Object.prototype,w=E.hasOwnProperty,A=E.toString;function I(t,e){return w.call(t,e)}var P=Array.isArray||function(t){return"[object Array]"===A.call(t)},T=function(t,e){this.line=t,this.column=e};exports.Position=T,T.prototype.offset=function(t){return new T(this.line,this.column+t)};var L=function(t,e,i){this.start=e,this.end=i,null!==t.sourceFile&&(this.source=t.sourceFile)};function N(t,e){for(var i=1,s=0;;){b.lastIndex=s;var r=b.exec(t);if(!(r&&r.index<e))return new T(i,e-s);++i,s=r.index+r[0].length}}exports.SourceLocation=L;var V={ecmaVersion:9,sourceType:"script",onInsertedSemicolon:null,onTrailingComma:null,allowReserved:null,allowReturnOutsideFunction:!1,allowImportExportEverywhere:!1,allowAwaitOutsideFunction:!1,allowHashBang:!1,locations:!1,onToken:null,onComment:null,ranges:!1,program:null,sourceFile:null,directSourceFile:null,preserveParens:!1};function R(t){var e={};for(var i in V)e[i]=t&&I(t,i)?t[i]:V[i];if(e.ecmaVersion>=2015&&(e.ecmaVersion-=2009),null==e.allowReserved&&(e.allowReserved=e.ecmaVersion<5),P(e.onToken)){var s=e.onToken;e.onToken=function(t){return s.push(t)}}return P(e.onComment)&&(e.onComment=O(e,e.onComment)),e}function O(t,e){return function(i,s,r,a,n,o){var h={type:i?"Block":"Line",value:s,start:r,end:a};t.locations&&(h.loc=new L(this,n,o)),t.ranges&&(h.range=[r,a]),e.push(h)}}exports.defaultOptions=V;var D=1,B=2,M=D|B,U=4,F=8,q=16,G=32,H=64,j=128;function W(t,e){return B|(t?U:0)|(e?F:0)}var z=0,Q=1,K=2,X=3,Y=4,Z=5;function $(t){return new RegExp("^(?:"+t.replace(/ /g,"|")+")$")}var J=function(e,s,r){this.options=e=R(e),this.sourceFile=e.sourceFile,this.keywords=$(i[e.ecmaVersion>=6?6:5]);var a="";if(!e.allowReserved){for(var n=e.ecmaVersion;!(a=t[n]);n--);"module"===e.sourceType&&(a+=" await")}this.reservedWords=$(a);var o=(a?a+" ":"")+t.strict;this.reservedWordsStrict=$(o),this.reservedWordsStrictBind=$(o+" "+t.strictBind),this.input=String(s),this.containsEsc=!1,r?(this.pos=r,this.lineStart=this.input.lastIndexOf("\n",r-1)+1,this.curLine=this.input.slice(0,this.lineStart).split(_).length):(this.pos=this.lineStart=0,this.curLine=1),this.type=y.eof,this.value=null,this.start=this.end=this.pos,this.startLoc=this.endLoc=this.curPosition(),this.lastTokEndLoc=this.lastTokStartLoc=null,this.lastTokStart=this.lastTokEnd=this.pos,this.context=this.initialContext(),this.exprAllowed=!0,this.inModule="module"===e.sourceType,this.strict=this.inModule||this.strictDirective(this.pos),this.potentialArrowAt=-1,this.yieldPos=this.awaitPos=0,this.labels=[],0===this.pos&&e.allowHashBang&&"#!"===this.input.slice(0,2)&&this.skipLineComment(2),this.scopeStack=[],this.enterScope(D),this.regexpState=null};exports.Parser=J;var tt={inFunction:{configurable:!0},inGenerator:{configurable:!0},inAsync:{configurable:!0},allowSuper:{configurable:!0},allowDirectSuper:{configurable:!0}};J.prototype.parse=function(){var t=this.options.program||this.startNode();return this.nextToken(),this.parseTopLevel(t)},tt.inFunction.get=function(){return(this.currentVarScope().flags&B)>0},tt.inGenerator.get=function(){return(this.currentVarScope().flags&F)>0},tt.inAsync.get=function(){return(this.currentVarScope().flags&U)>0},tt.allowSuper.get=function(){return(this.currentThisScope().flags&H)>0},tt.allowDirectSuper.get=function(){return(this.currentThisScope().flags&j)>0},J.prototype.inNonArrowFunction=function(){return(this.currentThisScope().flags&B)>0},J.extend=function(){for(var t=[],e=arguments.length;e--;)t[e]=arguments[e];for(var i=this,s=0;s<t.length;s++)i=t[s](i);return i},J.parse=function(t,e){return new this(e,t).parse()},J.parseExpressionAt=function(t,e,i){var s=new this(i,t,e);return s.nextToken(),s.parseExpression()},J.tokenizer=function(t,e){return new this(e,t)},Object.defineProperties(J.prototype,tt);var et=J.prototype,it=/^(?:'((?:\\.|[^'])*?)'|"((?:\\.|[^"])*?)"|;)/;function st(){this.shorthandAssign=this.trailingComma=this.parenthesizedAssign=this.parenthesizedBind=this.doubleProto=-1}et.strictDirective=function(t){for(;;){C.lastIndex=t,t+=C.exec(this.input)[0].length;var e=it.exec(this.input.slice(t));if(!e)return!1;if("use strict"===(e[1]||e[2]))return!0;t+=e[0].length}},et.eat=function(t){return this.type===t&&(this.next(),!0)},et.isContextual=function(t){return this.type===y.name&&this.value===t&&!this.containsEsc},et.eatContextual=function(t){return!!this.isContextual(t)&&(this.next(),!0)},et.expectContextual=function(t){this.eatContextual(t)||this.unexpected()},et.canInsertSemicolon=function(){return this.type===y.eof||this.type===y.braceR||_.test(this.input.slice(this.lastTokEnd,this.start))},et.insertSemicolon=function(){if(this.canInsertSemicolon())return this.options.onInsertedSemicolon&&this.options.onInsertedSemicolon(this.lastTokEnd,this.lastTokEndLoc),!0},et.semicolon=function(){this.eat(y.semi)||this.insertSemicolon()||this.unexpected()},et.afterTrailingComma=function(t,e){if(this.type===t)return this.options.onTrailingComma&&this.options.onTrailingComma(this.lastTokStart,this.lastTokStartLoc),e||this.next(),!0},et.expect=function(t){this.eat(t)||this.unexpected()},et.unexpected=function(t){this.raise(null!=t?t:this.start,"Unexpected token")},et.checkPatternErrors=function(t,e){if(t){t.trailingComma>-1&&this.raiseRecoverable(t.trailingComma,"Comma is not permitted after the rest element");var i=e?t.parenthesizedAssign:t.parenthesizedBind;i>-1&&this.raiseRecoverable(i,"Parenthesized pattern")}},et.checkExpressionErrors=function(t,e){if(!t)return!1;var i=t.shorthandAssign,s=t.doubleProto;if(!e)return i>=0||s>=0;i>=0&&this.raise(i,"Shorthand property assignments are valid only in destructuring patterns"),s>=0&&this.raiseRecoverable(s,"Redefinition of __proto__ property")},et.checkYieldAwaitInDefaultParams=function(){this.yieldPos&&(!this.awaitPos||this.yieldPos<this.awaitPos)&&this.raise(this.yieldPos,"Yield expression cannot be a default value"),this.awaitPos&&this.raise(this.awaitPos,"Await expression cannot be a default value")},et.isSimpleAssignTarget=function(t){return"ParenthesizedExpression"===t.type?this.isSimpleAssignTarget(t.expression):"Identifier"===t.type||"MemberExpression"===t.type};var rt=J.prototype;rt.parseTopLevel=function(t){var e={};for(t.body||(t.body=[]);this.type!==y.eof;){var i=this.parseStatement(null,!0,e);t.body.push(i)}return this.adaptDirectivePrologue(t.body),this.next(),this.options.ecmaVersion>=6&&(t.sourceType=this.options.sourceType),this.finishNode(t,"Program")};var at={kind:"loop"},nt={kind:"switch"};rt.isLet=function(){if(this.options.ecmaVersion<6||!this.isContextual("let"))return!1;C.lastIndex=this.pos;var t=C.exec(this.input),e=this.pos+t[0].length,i=this.input.charCodeAt(e);if(91===i||123===i)return!0;if(u(i,!0)){for(var r=e+1;l(this.input.charCodeAt(r),!0);)++r;var a=this.input.slice(e,r);if(!s.test(a))return!0}return!1},rt.isAsyncFunction=function(){if(this.options.ecmaVersion<8||!this.isContextual("async"))return!1;C.lastIndex=this.pos;var t=C.exec(this.input),e=this.pos+t[0].length;return!(_.test(this.input.slice(this.pos,e))||"function"!==this.input.slice(e,e+8)||e+8!==this.input.length&&l(this.input.charAt(e+8)))},rt.parseStatement=function(t,e,i){var s,r=this.type,a=this.startNode();switch(this.isLet()&&(r=y._var,s="let"),r){case y._break:case y._continue:return this.parseBreakContinueStatement(a,r.keyword);case y._debugger:return this.parseDebuggerStatement(a);case y._do:return this.parseDoStatement(a);case y._for:return this.parseForStatement(a);case y._function:return t&&(this.strict||"if"!==t)&&this.options.ecmaVersion>=6&&this.unexpected(),this.parseFunctionStatement(a,!1,!t);case y._class:return t&&this.unexpected(),this.parseClass(a,!0);case y._if:return this.parseIfStatement(a);case y._return:return this.parseReturnStatement(a);case y._switch:return this.parseSwitchStatement(a);case y._throw:return this.parseThrowStatement(a);case y._try:return this.parseTryStatement(a);case y._const:case y._var:return s=s||this.value,t&&"var"!==s&&this.unexpected(),this.parseVarStatement(a,s);case y._while:return this.parseWhileStatement(a);case y._with:return this.parseWithStatement(a);case y.braceL:return this.parseBlock(!0,a);case y.semi:return this.parseEmptyStatement(a);case y._export:case y._import:return this.options.allowImportExportEverywhere||(e||this.raise(this.start,"'import' and 'export' may only appear at the top level"),this.inModule||this.raise(this.start,"'import' and 'export' may appear only with 'sourceType: module'")),r===y._import?this.parseImport(a):this.parseExport(a,i);default:if(this.isAsyncFunction())return t&&this.unexpected(),this.next(),this.parseFunctionStatement(a,!0,!t);var n=this.value,o=this.parseExpression();return r===y.name&&"Identifier"===o.type&&this.eat(y.colon)?this.parseLabeledStatement(a,n,o,t):this.parseExpressionStatement(a,o)}},rt.parseBreakContinueStatement=function(t,e){var i="break"===e;this.next(),this.eat(y.semi)||this.insertSemicolon()?t.label=null:this.type!==y.name?this.unexpected():(t.label=this.parseIdent(),this.semicolon());for(var s=0;s<this.labels.length;++s){var r=this.labels[s];if(null==t.label||r.name===t.label.name){if(null!=r.kind&&(i||"loop"===r.kind))break;if(t.label&&i)break}}return s===this.labels.length&&this.raise(t.start,"Unsyntactic "+e),this.finishNode(t,i?"BreakStatement":"ContinueStatement")},rt.parseDebuggerStatement=function(t){return this.next(),this.semicolon(),this.finishNode(t,"DebuggerStatement")},rt.parseDoStatement=function(t){return this.next(),this.labels.push(at),t.body=this.parseStatement("do"),this.labels.pop(),this.expect(y._while),t.test=this.parseParenExpression(),this.options.ecmaVersion>=6?this.eat(y.semi):this.semicolon(),this.finishNode(t,"DoWhileStatement")},rt.parseForStatement=function(t){this.next();var e=this.options.ecmaVersion>=9&&(this.inAsync||!this.inFunction&&this.options.allowAwaitOutsideFunction)&&this.eatContextual("await")?this.lastTokStart:-1;if(this.labels.push(at),this.enterScope(0),this.expect(y.parenL),this.type===y.semi)return e>-1&&this.unexpected(e),this.parseFor(t,null);var i=this.isLet();if(this.type===y._var||this.type===y._const||i){var s=this.startNode(),r=i?"let":this.value;return this.next(),this.parseVar(s,!0,r),this.finishNode(s,"VariableDeclaration"),!(this.type===y._in||this.options.ecmaVersion>=6&&this.isContextual("of"))||1!==s.declarations.length||"var"!==r&&s.declarations[0].init?(e>-1&&this.unexpected(e),this.parseFor(t,s)):(this.options.ecmaVersion>=9&&(this.type===y._in?e>-1&&this.unexpected(e):t.await=e>-1),this.parseForIn(t,s))}var a=new st,n=this.parseExpression(!0,a);return this.type===y._in||this.options.ecmaVersion>=6&&this.isContextual("of")?(this.options.ecmaVersion>=9&&(this.type===y._in?e>-1&&this.unexpected(e):t.await=e>-1),this.toAssignable(n,!1,a),this.checkLVal(n),this.parseForIn(t,n)):(this.checkExpressionErrors(a,!0),e>-1&&this.unexpected(e),this.parseFor(t,n))},rt.parseFunctionStatement=function(t,e,i){return this.next(),this.parseFunction(t,ht|(i?0:pt),!1,e)},rt.parseIfStatement=function(t){return this.next(),t.test=this.parseParenExpression(),t.consequent=this.parseStatement("if"),t.alternate=this.eat(y._else)?this.parseStatement("if"):null,this.finishNode(t,"IfStatement")},rt.parseReturnStatement=function(t){return this.inFunction||this.options.allowReturnOutsideFunction||this.raise(this.start,"'return' outside of function"),this.next(),this.eat(y.semi)||this.insertSemicolon()?t.argument=null:(t.argument=this.parseExpression(),this.semicolon()),this.finishNode(t,"ReturnStatement")},rt.parseSwitchStatement=function(t){var e;this.next(),t.discriminant=this.parseParenExpression(),t.cases=[],this.expect(y.braceL),this.labels.push(nt),this.enterScope(0);for(var i=!1;this.type!==y.braceR;)if(this.type===y._case||this.type===y._default){var s=this.type===y._case;e&&this.finishNode(e,"SwitchCase"),t.cases.push(e=this.startNode()),e.consequent=[],this.next(),s?e.test=this.parseExpression():(i&&this.raiseRecoverable(this.lastTokStart,"Multiple default clauses"),i=!0,e.test=null),this.expect(y.colon)}else e||this.unexpected(),e.consequent.push(this.parseStatement(null));return this.exitScope(),e&&this.finishNode(e,"SwitchCase"),this.next(),this.labels.pop(),this.finishNode(t,"SwitchStatement")},rt.parseThrowStatement=function(t){return this.next(),_.test(this.input.slice(this.lastTokEnd,this.start))&&this.raise(this.lastTokEnd,"Illegal newline after throw"),t.argument=this.parseExpression(),this.semicolon(),this.finishNode(t,"ThrowStatement")};var ot=[];rt.parseTryStatement=function(t){if(this.next(),t.block=this.parseBlock(),t.handler=null,this.type===y._catch){var e=this.startNode();if(this.next(),this.eat(y.parenL)){e.param=this.parseBindingAtom();var i="Identifier"===e.param.type;this.enterScope(i?G:0),this.checkLVal(e.param,i?Y:K),this.expect(y.parenR)}else this.options.ecmaVersion<10&&this.unexpected(),e.param=null,this.enterScope(0);e.body=this.parseBlock(!1),this.exitScope(),t.handler=this.finishNode(e,"CatchClause")}return t.finalizer=this.eat(y._finally)?this.parseBlock():null,t.handler||t.finalizer||this.raise(t.start,"Missing catch or finally clause"),this.finishNode(t,"TryStatement")},rt.parseVarStatement=function(t,e){return this.next(),this.parseVar(t,!1,e),this.semicolon(),this.finishNode(t,"VariableDeclaration")},rt.parseWhileStatement=function(t){return this.next(),t.test=this.parseParenExpression(),this.labels.push(at),t.body=this.parseStatement("while"),this.labels.pop(),this.finishNode(t,"WhileStatement")},rt.parseWithStatement=function(t){return this.strict&&this.raise(this.start,"'with' in strict mode"),this.next(),t.object=this.parseParenExpression(),t.body=this.parseStatement("with"),this.finishNode(t,"WithStatement")},rt.parseEmptyStatement=function(t){return this.next(),this.finishNode(t,"EmptyStatement")},rt.parseLabeledStatement=function(t,e,i,s){for(var r=0,a=this.labels;r<a.length;r+=1){a[r].name===e&&this.raise(i.start,"Label '"+e+"' is already declared")}for(var n=this.type.isLoop?"loop":this.type===y._switch?"switch":null,o=this.labels.length-1;o>=0;o--){var h=this.labels[o];if(h.statementStart!==t.start)break;h.statementStart=this.start,h.kind=n}return this.labels.push({name:e,kind:n,statementStart:this.start}),t.body=this.parseStatement(s),("ClassDeclaration"===t.body.type||"VariableDeclaration"===t.body.type&&"var"!==t.body.kind||"FunctionDeclaration"===t.body.type&&(this.strict||t.body.generator||t.body.async))&&this.raiseRecoverable(t.body.start,"Invalid labeled declaration"),this.labels.pop(),t.label=i,this.finishNode(t,"LabeledStatement")},rt.parseExpressionStatement=function(t,e){return t.expression=e,this.semicolon(),this.finishNode(t,"ExpressionStatement")},rt.parseBlock=function(t,e){for(void 0===t&&(t=!0),void 0===e&&(e=this.startNode()),e.body=[],this.expect(y.braceL),t&&this.enterScope(0);!this.eat(y.braceR);){var i=this.parseStatement(null);e.body.push(i)}return t&&this.exitScope(),this.finishNode(e,"BlockStatement")},rt.parseFor=function(t,e){return t.init=e,this.expect(y.semi),t.test=this.type===y.semi?null:this.parseExpression(),this.expect(y.semi),t.update=this.type===y.parenR?null:this.parseExpression(),this.expect(y.parenR),this.exitScope(),t.body=this.parseStatement("for"),this.labels.pop(),this.finishNode(t,"ForStatement")},rt.parseForIn=function(t,e){var i=this.type===y._in?"ForInStatement":"ForOfStatement";return this.next(),"ForInStatement"===i&&("AssignmentPattern"===e.type||"VariableDeclaration"===e.type&&null!=e.declarations[0].init&&(this.strict||"Identifier"!==e.declarations[0].id.type))&&this.raise(e.start,"Invalid assignment in for-in loop head"),t.left=e,t.right="ForInStatement"===i?this.parseExpression():this.parseMaybeAssign(),this.expect(y.parenR),this.exitScope(),t.body=this.parseStatement("for"),this.labels.pop(),this.finishNode(t,i)},rt.parseVar=function(t,e,i){for(t.declarations=[],t.kind=i;;){var s=this.startNode();if(this.parseVarId(s,i),this.eat(y.eq)?s.init=this.parseMaybeAssign(e):"const"!==i||this.type===y._in||this.options.ecmaVersion>=6&&this.isContextual("of")?"Identifier"===s.id.type||e&&(this.type===y._in||this.isContextual("of"))?s.init=null:this.raise(this.lastTokEnd,"Complex binding patterns require an initialization value"):this.unexpected(),t.declarations.push(this.finishNode(s,"VariableDeclarator")),!this.eat(y.comma))break}return t},rt.parseVarId=function(t,e){t.id=this.parseBindingAtom(e),this.checkLVal(t.id,"var"===e?Q:K,!1)};var ht=1,pt=2,ct=4;rt.parseFunction=function(t,e,i,s){this.initFunction(t),(this.options.ecmaVersion>=9||this.options.ecmaVersion>=6&&!s)&&(t.generator=this.eat(y.star)),this.options.ecmaVersion>=8&&(t.async=!!s),e&ht&&(t.id=e&ct&&this.type!==y.name?null:this.parseIdent(),!t.id||e&pt||this.checkLVal(t.id,this.inModule&&!this.inFunction?K:X));var r=this.yieldPos,a=this.awaitPos;return this.yieldPos=0,this.awaitPos=0,this.enterScope(W(t.async,t.generator)),e&ht||(t.id=this.type===y.name?this.parseIdent():null),this.parseFunctionParams(t),this.parseFunctionBody(t,i),this.yieldPos=r,this.awaitPos=a,this.finishNode(t,e&ht?"FunctionDeclaration":"FunctionExpression")},rt.parseFunctionParams=function(t){this.expect(y.parenL),t.params=this.parseBindingList(y.parenR,!1,this.options.ecmaVersion>=8),this.checkYieldAwaitInDefaultParams()},rt.parseClass=function(t,e){this.next(),this.parseClassId(t,e),this.parseClassSuper(t);var i=this.startNode(),s=!1;for(i.body=[],this.expect(y.braceL);!this.eat(y.braceR);){var r=this.parseClassElement(null!==t.superClass);r&&(i.body.push(r),"MethodDefinition"===r.type&&"constructor"===r.kind&&(s&&this.raise(r.start,"Duplicate constructor in the same class"),s=!0))}return t.body=this.finishNode(i,"ClassBody"),this.finishNode(t,e?"ClassDeclaration":"ClassExpression")},rt.parseClassElement=function(t){var e=this;if(this.eat(y.semi))return null;var i=this.startNode(),s=function(t,s){void 0===s&&(s=!1);var r=e.start,a=e.startLoc;return!!e.eatContextual(t)&&(!(e.type===y.parenL||s&&e.canInsertSemicolon())||(i.key&&e.unexpected(),i.computed=!1,i.key=e.startNodeAt(r,a),i.key.name=t,e.finishNode(i.key,"Identifier"),!1))};i.kind="method",i.static=s("static");var r=this.eat(y.star),a=!1;r||(this.options.ecmaVersion>=8&&s("async",!0)?(a=!0,r=this.options.ecmaVersion>=9&&this.eat(y.star)):s("get")?i.kind="get":s("set")&&(i.kind="set")),i.key||this.parsePropertyName(i);var n=i.key,o=!1;return i.computed||i.static||!("Identifier"===n.type&&"constructor"===n.name||"Literal"===n.type&&"constructor"===n.value)?i.static&&"Identifier"===n.type&&"prototype"===n.name&&this.raise(n.start,"Classes may not have a static property named prototype"):("method"!==i.kind&&this.raise(n.start,"Constructor can't have get/set modifier"),r&&this.raise(n.start,"Constructor can't be a generator"),a&&this.raise(n.start,"Constructor can't be an async method"),i.kind="constructor",o=t),this.parseClassMethod(i,r,a,o),"get"===i.kind&&0!==i.value.params.length&&this.raiseRecoverable(i.value.start,"getter should have no params"),"set"===i.kind&&1!==i.value.params.length&&this.raiseRecoverable(i.value.start,"setter should have exactly one param"),"set"===i.kind&&"RestElement"===i.value.params[0].type&&this.raiseRecoverable(i.value.params[0].start,"Setter cannot use rest params"),i},rt.parseClassMethod=function(t,e,i,s){return t.value=this.parseMethod(e,i,s),this.finishNode(t,"MethodDefinition")},rt.parseClassId=function(t,e){t.id=this.type===y.name?this.parseIdent():!0===e?this.unexpected():null},rt.parseClassSuper=function(t){t.superClass=this.eat(y._extends)?this.parseExprSubscripts():null},rt.parseExport=function(t,e){if(this.next(),this.eat(y.star))return this.expectContextual("from"),this.type!==y.string&&this.unexpected(),t.source=this.parseExprAtom(),this.semicolon(),this.finishNode(t,"ExportAllDeclaration");if(this.eat(y._default)){var i;if(this.checkExport(e,"default",this.lastTokStart),this.type===y._function||(i=this.isAsyncFunction())){var s=this.startNode();this.next(),i&&this.next(),t.declaration=this.parseFunction(s,ht|ct,!1,i,!0)}else if(this.type===y._class){var r=this.startNode();t.declaration=this.parseClass(r,"nullableID")}else t.declaration=this.parseMaybeAssign(),this.semicolon();return this.finishNode(t,"ExportDefaultDeclaration")}if(this.shouldParseExportStatement())t.declaration=this.parseStatement(null),"VariableDeclaration"===t.declaration.type?this.checkVariableExport(e,t.declaration.declarations):this.checkExport(e,t.declaration.id.name,t.declaration.id.start),t.specifiers=[],t.source=null;else{if(t.declaration=null,t.specifiers=this.parseExportSpecifiers(e),this.eatContextual("from"))this.type!==y.string&&this.unexpected(),t.source=this.parseExprAtom();else{for(var a=0,n=t.specifiers;a<n.length;a+=1){var o=n[a];this.checkUnreserved(o.local)}t.source=null}this.semicolon()}return this.finishNode(t,"ExportNamedDeclaration")},rt.checkExport=function(t,e,i){t&&(I(t,e)&&this.raiseRecoverable(i,"Duplicate export '"+e+"'"),t[e]=!0)},rt.checkPatternExport=function(t,e){var i=e.type;if("Identifier"===i)this.checkExport(t,e.name,e.start);else if("ObjectPattern"===i)for(var s=0,r=e.properties;s<r.length;s+=1){var a=r[s];this.checkPatternExport(t,a)}else if("ArrayPattern"===i)for(var n=0,o=e.elements;n<o.length;n+=1){var h=o[n];h&&this.checkPatternExport(t,h)}else"Property"===i?this.checkPatternExport(t,e.value):"AssignmentPattern"===i?this.checkPatternExport(t,e.left):"RestElement"===i?this.checkPatternExport(t,e.argument):"ParenthesizedExpression"===i&&this.checkPatternExport(t,e.expression)},rt.checkVariableExport=function(t,e){if(t)for(var i=0,s=e;i<s.length;i+=1){var r=s[i];this.checkPatternExport(t,r.id)}},rt.shouldParseExportStatement=function(){return"var"===this.type.keyword||"const"===this.type.keyword||"class"===this.type.keyword||"function"===this.type.keyword||this.isLet()||this.isAsyncFunction()},rt.parseExportSpecifiers=function(t){var e=[],i=!0;for(this.expect(y.braceL);!this.eat(y.braceR);){if(i)i=!1;else if(this.expect(y.comma),this.afterTrailingComma(y.braceR))break;var s=this.startNode();s.local=this.parseIdent(!0),s.exported=this.eatContextual("as")?this.parseIdent(!0):s.local,this.checkExport(t,s.exported.name,s.exported.start),e.push(this.finishNode(s,"ExportSpecifier"))}return e},rt.parseImport=function(t){return this.next(),this.type===y.string?(t.specifiers=ot,t.source=this.parseExprAtom()):(t.specifiers=this.parseImportSpecifiers(),this.expectContextual("from"),t.source=this.type===y.string?this.parseExprAtom():this.unexpected()),this.semicolon(),this.finishNode(t,"ImportDeclaration")},rt.parseImportSpecifiers=function(){var t=[],e=!0;if(this.type===y.name){var i=this.startNode();if(i.local=this.parseIdent(),this.checkLVal(i.local,K),t.push(this.finishNode(i,"ImportDefaultSpecifier")),!this.eat(y.comma))return t}if(this.type===y.star){var s=this.startNode();return this.next(),this.expectContextual("as"),s.local=this.parseIdent(),this.checkLVal(s.local,K),t.push(this.finishNode(s,"ImportNamespaceSpecifier")),t}for(this.expect(y.braceL);!this.eat(y.braceR);){if(e)e=!1;else if(this.expect(y.comma),this.afterTrailingComma(y.braceR))break;var r=this.startNode();r.imported=this.parseIdent(!0),this.eatContextual("as")?r.local=this.parseIdent():(this.checkUnreserved(r.imported),r.local=r.imported),this.checkLVal(r.local,K),t.push(this.finishNode(r,"ImportSpecifier"))}return t},rt.adaptDirectivePrologue=function(t){for(var e=0;e<t.length&&this.isDirectiveCandidate(t[e]);++e)t[e].directive=t[e].expression.raw.slice(1,-1)},rt.isDirectiveCandidate=function(t){return"ExpressionStatement"===t.type&&"Literal"===t.expression.type&&"string"==typeof t.expression.value&&('"'===this.input[t.start]||"'"===this.input[t.start])};var ut=J.prototype;ut.toAssignable=function(t,e,i){if(this.options.ecmaVersion>=6&&t)switch(t.type){case"Identifier":this.inAsync&&"await"===t.name&&this.raise(t.start,"Can not use 'await' as identifier inside an async function");break;case"ObjectPattern":case"ArrayPattern":case"RestElement":break;case"ObjectExpression":t.type="ObjectPattern",i&&this.checkPatternErrors(i,!0);for(var s=0,r=t.properties;s<r.length;s+=1){var a=r[s];this.toAssignable(a,e),"RestElement"!==a.type||"ArrayPattern"!==a.argument.type&&"ObjectPattern"!==a.argument.type||this.raise(a.argument.start,"Unexpected token")}break;case"Property":"init"!==t.kind&&this.raise(t.key.start,"Object pattern can't contain getter or setter"),this.toAssignable(t.value,e);break;case"ArrayExpression":t.type="ArrayPattern",i&&this.checkPatternErrors(i,!0),this.toAssignableList(t.elements,e);break;case"SpreadElement":t.type="RestElement",this.toAssignable(t.argument,e),"AssignmentPattern"===t.argument.type&&this.raise(t.argument.start,"Rest elements cannot have a default value");break;case"AssignmentExpression":"="!==t.operator&&this.raise(t.left.end,"Only '=' operator can be used for specifying default value."),t.type="AssignmentPattern",delete t.operator,this.toAssignable(t.left,e);case"AssignmentPattern":break;case"ParenthesizedExpression":this.toAssignable(t.expression,e);break;case"MemberExpression":if(!e)break;default:this.raise(t.start,"Assigning to rvalue")}else i&&this.checkPatternErrors(i,!0);return t},ut.toAssignableList=function(t,e){for(var i=t.length,s=0;s<i;s++){var r=t[s];r&&this.toAssignable(r,e)}if(i){var a=t[i-1];6===this.options.ecmaVersion&&e&&a&&"RestElement"===a.type&&"Identifier"!==a.argument.type&&this.unexpected(a.argument.start)}return t},ut.parseSpread=function(t){var e=this.startNode();return this.next(),e.argument=this.parseMaybeAssign(!1,t),this.finishNode(e,"SpreadElement")},ut.parseRestBinding=function(){var t=this.startNode();return this.next(),6===this.options.ecmaVersion&&this.type!==y.name&&this.unexpected(),t.argument=this.parseBindingAtom(),this.finishNode(t,"RestElement")},ut.parseBindingAtom=function(){if(this.options.ecmaVersion>=6)switch(this.type){case y.bracketL:var t=this.startNode();return this.next(),t.elements=this.parseBindingList(y.bracketR,!0,!0),this.finishNode(t,"ArrayPattern");case y.braceL:return this.parseObj(!0)}return this.parseIdent()},ut.parseBindingList=function(t,e,i){for(var s=[],r=!0;!this.eat(t);)if(r?r=!1:this.expect(y.comma),e&&this.type===y.comma)s.push(null);else{if(i&&this.afterTrailingComma(t))break;if(this.type===y.ellipsis){var a=this.parseRestBinding();this.parseBindingListItem(a),s.push(a),this.type===y.comma&&this.raise(this.start,"Comma is not permitted after the rest element"),this.expect(t);break}var n=this.parseMaybeDefault(this.start,this.startLoc);this.parseBindingListItem(n),s.push(n)}return s},ut.parseBindingListItem=function(t){return t},ut.parseMaybeDefault=function(t,e,i){if(i=i||this.parseBindingAtom(),this.options.ecmaVersion<6||!this.eat(y.eq))return i;var s=this.startNodeAt(t,e);return s.left=i,s.right=this.parseMaybeAssign(),this.finishNode(s,"AssignmentPattern")},ut.checkLVal=function(t,e,i){switch(void 0===e&&(e=z),t.type){case"Identifier":this.strict&&this.reservedWordsStrictBind.test(t.name)&&this.raiseRecoverable(t.start,(e?"Binding ":"Assigning to ")+t.name+" in strict mode"),i&&(I(i,t.name)&&this.raiseRecoverable(t.start,"Argument name clash"),i[t.name]=!0),e!==z&&e!==Z&&this.declareName(t.name,e,t.start);break;case"MemberExpression":e&&this.raiseRecoverable(t.start,"Binding member expression");break;case"ObjectPattern":for(var s=0,r=t.properties;s<r.length;s+=1){var a=r[s];this.checkLVal(a,e,i)}break;case"Property":this.checkLVal(t.value,e,i);break;case"ArrayPattern":for(var n=0,o=t.elements;n<o.length;n+=1){var h=o[n];h&&this.checkLVal(h,e,i)}break;case"AssignmentPattern":this.checkLVal(t.left,e,i);break;case"RestElement":this.checkLVal(t.argument,e,i);break;case"ParenthesizedExpression":this.checkLVal(t.expression,e,i);break;default:this.raise(t.start,(e?"Binding":"Assigning to")+" rvalue")}};var lt=J.prototype;lt.checkPropClash=function(t,e,i){if(!(this.options.ecmaVersion>=9&&"SpreadElement"===t.type||this.options.ecmaVersion>=6&&(t.computed||t.method||t.shorthand))){var s,r=t.key;switch(r.type){case"Identifier":s=r.name;break;case"Literal":s=String(r.value);break;default:return}var a=t.kind;if(this.options.ecmaVersion>=6)"__proto__"===s&&"init"===a&&(e.proto&&(i&&i.doubleProto<0?i.doubleProto=r.start:this.raiseRecoverable(r.start,"Redefinition of __proto__ 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p=this.parseMaybeConditional(t,e);if(i&&(p=i.call(this,p,o,h)),this.type.isAssign){var c=this.startNodeAt(o,h);return c.operator=this.value,c.left=this.type===y.eq?this.toAssignable(p,!1,e):p,s||st.call(e),e.shorthandAssign=-1,this.checkLVal(p),this.next(),c.right=this.parseMaybeAssign(t),this.finishNode(c,"AssignmentExpression")}return s&&this.checkExpressionErrors(e,!0),r>-1&&(e.parenthesizedAssign=r),a>-1&&(e.trailingComma=a),n>-1&&(e.shorthandAssign=n),p},lt.parseMaybeConditional=function(t,e){var i=this.start,s=this.startLoc,r=this.parseExprOps(t,e);if(this.checkExpressionErrors(e))return r;if(this.eat(y.question)){var a=this.startNodeAt(i,s);return a.test=r,a.consequent=this.parseMaybeAssign(),this.expect(y.colon),a.alternate=this.parseMaybeAssign(t),this.finishNode(a,"ConditionalExpression")}return r},lt.parseExprOps=function(t,e){var i=this.start,s=this.startLoc,r=this.parseMaybeUnary(e,!1);return this.checkExpressionErrors(e)?r:r.start===i&&"ArrowFunctionExpression"===r.type?r:this.parseExprOp(r,i,s,-1,t)},lt.parseExprOp=function(t,e,i,s,r){var a=this.type.binop;if(null!=a&&(!r||this.type!==y._in)&&a>s){var n=this.type===y.logicalOR||this.type===y.logicalAND,o=this.value;this.next();var h=this.start,p=this.startLoc,c=this.parseExprOp(this.parseMaybeUnary(null,!1),h,p,a,r),u=this.buildBinary(e,i,t,c,o,n);return this.parseExprOp(u,e,i,s,r)}return t},lt.buildBinary=function(t,e,i,s,r,a){var n=this.startNodeAt(t,e);return n.left=i,n.operator=r,n.right=s,this.finishNode(n,a?"LogicalExpression":"BinaryExpression")},lt.parseMaybeUnary=function(t,e){var i,s=this.start,r=this.startLoc;if(this.isContextual("await")&&(this.inAsync||!this.inFunction&&this.options.allowAwaitOutsideFunction))i=this.parseAwait(),e=!0;else if(this.type.prefix){var a=this.startNode(),n=this.type===y.incDec;a.operator=this.value,a.prefix=!0,this.next(),a.argument=this.parseMaybeUnary(null,!0),this.checkExpressionErrors(t,!0),n?this.checkLVal(a.argument):this.strict&&"delete"===a.operator&&"Identifier"===a.argument.type?this.raiseRecoverable(a.start,"Deleting local variable in strict mode"):e=!0,i=this.finishNode(a,n?"UpdateExpression":"UnaryExpression")}else{if(i=this.parseExprSubscripts(t),this.checkExpressionErrors(t))return i;for(;this.type.postfix&&!this.canInsertSemicolon();){var o=this.startNodeAt(s,r);o.operator=this.value,o.prefix=!1,o.argument=i,this.checkLVal(i),this.next(),i=this.finishNode(o,"UpdateExpression")}}return!e&&this.eat(y.starstar)?this.buildBinary(s,r,i,this.parseMaybeUnary(null,!1),"**",!1):i},lt.parseExprSubscripts=function(t){var e=this.start,i=this.startLoc,s=this.parseExprAtom(t),r="ArrowFunctionExpression"===s.type&&")"!==this.input.slice(this.lastTokStart,this.lastTokEnd);if(this.checkExpressionErrors(t)||r)return s;var a=this.parseSubscripts(s,e,i);return t&&"MemberExpression"===a.type&&(t.parenthesizedAssign>=a.start&&(t.parenthesizedAssign=-1),t.parenthesizedBind>=a.start&&(t.parenthesizedBind=-1)),a},lt.parseSubscripts=function(t,e,i,s){for(var r=this.options.ecmaVersion>=8&&"Identifier"===t.type&&"async"===t.name&&this.lastTokEnd===t.end&&!this.canInsertSemicolon()&&"async"===this.input.slice(t.start,t.end),a=void 0;;)if((a=this.eat(y.bracketL))||this.eat(y.dot)){var n=this.startNodeAt(e,i);n.object=t,n.property=a?this.parseExpression():this.parseIdent(!0),n.computed=!!a,a&&this.expect(y.bracketR),t=this.finishNode(n,"MemberExpression")}else if(!s&&this.eat(y.parenL)){var o=new st,h=this.yieldPos,p=this.awaitPos;this.yieldPos=0,this.awaitPos=0;var c=this.parseExprList(y.parenR,this.options.ecmaVersion>=8,!1,o);if(r&&!this.canInsertSemicolon()&&this.eat(y.arrow))return this.checkPatternErrors(o,!1),this.checkYieldAwaitInDefaultParams(),this.yieldPos=h,this.awaitPos=p,this.parseArrowExpression(this.startNodeAt(e,i),c,!0);this.checkExpressionErrors(o,!0),this.yieldPos=h||this.yieldPos,this.awaitPos=p||this.awaitPos;var u=this.startNodeAt(e,i);u.callee=t,u.arguments=c,t=this.finishNode(u,"CallExpression")}else{if(this.type!==y.backQuote)return t;var l=this.startNodeAt(e,i);l.tag=t,l.quasi=this.parseTemplate({isTagged:!0}),t=this.finishNode(l,"TaggedTemplateExpression")}},lt.parseExprAtom=function(t){this.type===y.slash&&this.readRegexp();var e,i=this.potentialArrowAt===this.start;switch(this.type){case y._super:return this.allowSuper||this.raise(this.start,"'super' keyword outside a method"),e=this.startNode(),this.next(),this.type!==y.parenL||this.allowDirectSuper||this.raise(e.start,"super() call outside constructor of a subclass"),this.type!==y.dot&&this.type!==y.bracketL&&this.type!==y.parenL&&this.unexpected(),this.finishNode(e,"Super");case y._this:return e=this.startNode(),this.next(),this.finishNode(e,"ThisExpression");case y.name:var s=this.start,r=this.startLoc,a=this.containsEsc,n=this.parseIdent(this.type!==y.name);if(this.options.ecmaVersion>=8&&!a&&"async"===n.name&&!this.canInsertSemicolon()&&this.eat(y._function))return this.parseFunction(this.startNodeAt(s,r),0,!1,!0);if(i&&!this.canInsertSemicolon()){if(this.eat(y.arrow))return this.parseArrowExpression(this.startNodeAt(s,r),[n],!1);if(this.options.ecmaVersion>=8&&"async"===n.name&&this.type===y.name&&!a)return n=this.parseIdent(),!this.canInsertSemicolon()&&this.eat(y.arrow)||this.unexpected(),this.parseArrowExpression(this.startNodeAt(s,r),[n],!0)}return n;case y.regexp:var o=this.value;return(e=this.parseLiteral(o.value)).regex={pattern:o.pattern,flags:o.flags},e;case y.num:case y.string:return this.parseLiteral(this.value);case y._null:case y._true:case y._false:return(e=this.startNode()).value=this.type===y._null?null:this.type===y._true,e.raw=this.type.keyword,this.next(),this.finishNode(e,"Literal");case y.parenL:var h=this.start,p=this.parseParenAndDistinguishExpression(i);return t&&(t.parenthesizedAssign<0&&!this.isSimpleAssignTarget(p)&&(t.parenthesizedAssign=h),t.parenthesizedBind<0&&(t.parenthesizedBind=h)),p;case y.bracketL:return e=this.startNode(),this.next(),e.elements=this.parseExprList(y.bracketR,!0,!0,t),this.finishNode(e,"ArrayExpression");case y.braceL:return this.parseObj(!1,t);case y._function:return e=this.startNode(),this.next(),this.parseFunction(e,0);case y._class:return this.parseClass(this.startNode(),!1);case y._new:return this.parseNew();case y.backQuote:return this.parseTemplate();default:this.unexpected()}},lt.parseLiteral=function(t){var e=this.startNode();return e.value=t,e.raw=this.input.slice(this.start,this.end),this.next(),this.finishNode(e,"Literal")},lt.parseParenExpression=function(){this.expect(y.parenL);var t=this.parseExpression();return this.expect(y.parenR),t},lt.parseParenAndDistinguishExpression=function(t){var e,i=this.start,s=this.startLoc,r=this.options.ecmaVersion>=8;if(this.options.ecmaVersion>=6){this.next();var a,n=this.start,o=this.startLoc,h=[],p=!0,c=!1,u=new st,l=this.yieldPos,d=this.awaitPos;for(this.yieldPos=0,this.awaitPos=0;this.type!==y.parenR;){if(p?p=!1:this.expect(y.comma),r&&this.afterTrailingComma(y.parenR,!0)){c=!0;break}if(this.type===y.ellipsis){a=this.start,h.push(this.parseParenItem(this.parseRestBinding())),this.type===y.comma&&this.raise(this.start,"Comma is not permitted after the rest element");break}h.push(this.parseMaybeAssign(!1,u,this.parseParenItem))}var f=this.start,m=this.startLoc;if(this.expect(y.parenR),t&&!this.canInsertSemicolon()&&this.eat(y.arrow))return this.checkPatternErrors(u,!1),this.checkYieldAwaitInDefaultParams(),this.yieldPos=l,this.awaitPos=d,this.parseParenArrowList(i,s,h);h.length&&!c||this.unexpected(this.lastTokStart),a&&this.unexpected(a),this.checkExpressionErrors(u,!0),this.yieldPos=l||this.yieldPos,this.awaitPos=d||this.awaitPos,h.length>1?((e=this.startNodeAt(n,o)).expressions=h,this.finishNodeAt(e,"SequenceExpression",f,m)):e=h[0]}else e=this.parseParenExpression();if(this.options.preserveParens){var x=this.startNodeAt(i,s);return x.expression=e,this.finishNode(x,"ParenthesizedExpression")}return e},lt.parseParenItem=function(t){return t},lt.parseParenArrowList=function(t,e,i){return this.parseArrowExpression(this.startNodeAt(t,e),i)};var dt=[];lt.parseNew=function(){var t=this.startNode(),e=this.parseIdent(!0);if(this.options.ecmaVersion>=6&&this.eat(y.dot)){t.meta=e;var i=this.containsEsc;return t.property=this.parseIdent(!0),("target"!==t.property.name||i)&&this.raiseRecoverable(t.property.start,"The only valid meta property for new is new.target"),this.inNonArrowFunction()||this.raiseRecoverable(t.start,"new.target can only be used in functions"),this.finishNode(t,"MetaProperty")}var s=this.start,r=this.startLoc;return t.callee=this.parseSubscripts(this.parseExprAtom(),s,r,!0),this.eat(y.parenL)?t.arguments=this.parseExprList(y.parenR,this.options.ecmaVersion>=8,!1):t.arguments=dt,this.finishNode(t,"NewExpression")},lt.parseTemplateElement=function(t){var e=t.isTagged,i=this.startNode();return this.type===y.invalidTemplate?(e||this.raiseRecoverable(this.start,"Bad escape sequence in untagged template literal"),i.value={raw:this.value,cooked:null}):i.value={raw:this.input.slice(this.start,this.end).replace(/\r\n?/g,"\n"),cooked:this.value},this.next(),i.tail=this.type===y.backQuote,this.finishNode(i,"TemplateElement")},lt.parseTemplate=function(t){void 0===t&&(t={});var e=t.isTagged;void 0===e&&(e=!1);var i=this.startNode();this.next(),i.expressions=[];var s=this.parseTemplateElement({isTagged:e});for(i.quasis=[s];!s.tail;)this.type===y.eof&&this.raise(this.pos,"Unterminated template literal"),this.expect(y.dollarBraceL),i.expressions.push(this.parseExpression()),this.expect(y.braceR),i.quasis.push(s=this.parseTemplateElement({isTagged:e}));return this.next(),this.finishNode(i,"TemplateLiteral")},lt.isAsyncProp=function(t){return!t.computed&&"Identifier"===t.key.type&&"async"===t.key.name&&(this.type===y.name||this.type===y.num||this.type===y.string||this.type===y.bracketL||this.type.keyword||this.options.ecmaVersion>=9&&this.type===y.star)&&!_.test(this.input.slice(this.lastTokEnd,this.start))},lt.parseObj=function(t,e){var i=this.startNode(),s=!0,r={};for(i.properties=[],this.next();!this.eat(y.braceR);){if(s)s=!1;else if(this.expect(y.comma),this.afterTrailingComma(y.braceR))break;var a=this.parseProperty(t,e);t||this.checkPropClash(a,r,e),i.properties.push(a)}return this.finishNode(i,t?"ObjectPattern":"ObjectExpression")},lt.parseProperty=function(t,e){var i,s,r,a,n=this.startNode();if(this.options.ecmaVersion>=9&&this.eat(y.ellipsis))return t?(n.argument=this.parseIdent(!1),this.type===y.comma&&this.raise(this.start,"Comma is not permitted after the rest element"),this.finishNode(n,"RestElement")):(this.type===y.parenL&&e&&(e.parenthesizedAssign<0&&(e.parenthesizedAssign=this.start),e.parenthesizedBind<0&&(e.parenthesizedBind=this.start)),n.argument=this.parseMaybeAssign(!1,e),this.type===y.comma&&e&&e.trailingComma<0&&(e.trailingComma=this.start),this.finishNode(n,"SpreadElement"));this.options.ecmaVersion>=6&&(n.method=!1,n.shorthand=!1,(t||e)&&(r=this.start,a=this.startLoc),t||(i=this.eat(y.star)));var o=this.containsEsc;return this.parsePropertyName(n),!t&&!o&&this.options.ecmaVersion>=8&&!i&&this.isAsyncProp(n)?(s=!0,i=this.options.ecmaVersion>=9&&this.eat(y.star),this.parsePropertyName(n,e)):s=!1,this.parsePropertyValue(n,t,i,s,r,a,e,o),this.finishNode(n,"Property")},lt.parsePropertyValue=function(t,e,i,s,r,a,n,o){if((i||s)&&this.type===y.colon&&this.unexpected(),this.eat(y.colon))t.value=e?this.parseMaybeDefault(this.start,this.startLoc):this.parseMaybeAssign(!1,n),t.kind="init";else if(this.options.ecmaVersion>=6&&this.type===y.parenL)e&&this.unexpected(),t.kind="init",t.method=!0,t.value=this.parseMethod(i,s);else if(e||o||!(this.options.ecmaVersion>=5)||t.computed||"Identifier"!==t.key.type||"get"!==t.key.name&&"set"!==t.key.name||this.type===y.comma||this.type===y.braceR)this.options.ecmaVersion>=6&&!t.computed&&"Identifier"===t.key.type?(this.checkUnreserved(t.key),t.kind="init",e?t.value=this.parseMaybeDefault(r,a,t.key):this.type===y.eq&&n?(n.shorthandAssign<0&&(n.shorthandAssign=this.start),t.value=this.parseMaybeDefault(r,a,t.key)):t.value=t.key,t.shorthand=!0):this.unexpected();else{(i||s)&&this.unexpected(),t.kind=t.key.name,this.parsePropertyName(t),t.value=this.parseMethod(!1);var h="get"===t.kind?0:1;if(t.value.params.length!==h){var p=t.value.start;"get"===t.kind?this.raiseRecoverable(p,"getter should have no params"):this.raiseRecoverable(p,"setter should have exactly one param")}else"set"===t.kind&&"RestElement"===t.value.params[0].type&&this.raiseRecoverable(t.value.params[0].start,"Setter cannot use rest params")}},lt.parsePropertyName=function(t){if(this.options.ecmaVersion>=6){if(this.eat(y.bracketL))return t.computed=!0,t.key=this.parseMaybeAssign(),this.expect(y.bracketR),t.key;t.computed=!1}return t.key=this.type===y.num||this.type===y.string?this.parseExprAtom():this.parseIdent(!0)},lt.initFunction=function(t){t.id=null,this.options.ecmaVersion>=6&&(t.generator=t.expression=!1),this.options.ecmaVersion>=8&&(t.async=!1)},lt.parseMethod=function(t,e,i){var s=this.startNode(),r=this.yieldPos,a=this.awaitPos;return this.initFunction(s),this.options.ecmaVersion>=6&&(s.generator=t),this.options.ecmaVersion>=8&&(s.async=!!e),this.yieldPos=0,this.awaitPos=0,this.enterScope(W(e,s.generator)|H|(i?j:0)),this.expect(y.parenL),s.params=this.parseBindingList(y.parenR,!1,this.options.ecmaVersion>=8),this.checkYieldAwaitInDefaultParams(),this.parseFunctionBody(s,!1),this.yieldPos=r,this.awaitPos=a,this.finishNode(s,"FunctionExpression")},lt.parseArrowExpression=function(t,e,i){var s=this.yieldPos,r=this.awaitPos;return this.enterScope(W(i,!1)|q),this.initFunction(t),this.options.ecmaVersion>=8&&(t.async=!!i),this.yieldPos=0,this.awaitPos=0,t.params=this.toAssignableList(e,!0),this.parseFunctionBody(t,!0),this.yieldPos=s,this.awaitPos=r,this.finishNode(t,"ArrowFunctionExpression")},lt.parseFunctionBody=function(t,e){var i=e&&this.type!==y.braceL,s=this.strict,r=!1;if(i)t.body=this.parseMaybeAssign(),t.expression=!0,this.checkParams(t,!1);else{var a=this.options.ecmaVersion>=7&&!this.isSimpleParamList(t.params);s&&!a||(r=this.strictDirective(this.end))&&a&&this.raiseRecoverable(t.start,"Illegal 'use strict' directive in function with non-simple parameter list");var n=this.labels;this.labels=[],r&&(this.strict=!0),this.checkParams(t,!s&&!r&&!e&&this.isSimpleParamList(t.params)),t.body=this.parseBlock(!1),t.expression=!1,this.adaptDirectivePrologue(t.body.body),this.labels=n}this.exitScope(),this.strict&&t.id&&this.checkLVal(t.id,Z),this.strict=s},lt.isSimpleParamList=function(t){for(var e=0,i=t;e<i.length;e+=1){if("Identifier"!==i[e].type)return!1}return!0},lt.checkParams=function(t,e){for(var i={},s=0,r=t.params;s<r.length;s+=1){var a=r[s];this.checkLVal(a,Q,e?null:i)}},lt.parseExprList=function(t,e,i,s){for(var r=[],a=!0;!this.eat(t);){if(a)a=!1;else if(this.expect(y.comma),e&&this.afterTrailingComma(t))break;var n=void 0;i&&this.type===y.comma?n=null:this.type===y.ellipsis?(n=this.parseSpread(s),s&&this.type===y.comma&&s.trailingComma<0&&(s.trailingComma=this.start)):n=this.parseMaybeAssign(!1,s),r.push(n)}return r},lt.checkUnreserved=function(t){var e=t.start,i=t.end,s=t.name;(this.inGenerator&&"yield"===s&&this.raiseRecoverable(e,"Can not use 'yield' as identifier inside a generator"),this.inAsync&&"await"===s&&this.raiseRecoverable(e,"Can not use 'await' as identifier inside an async function"),this.keywords.test(s)&&this.raise(e,"Unexpected keyword '"+s+"'"),this.options.ecmaVersion<6&&-1!==this.input.slice(e,i).indexOf("\\"))||(this.strict?this.reservedWordsStrict:this.reservedWords).test(s)&&(this.inAsync||"await"!==s||this.raiseRecoverable(e,"Can not use keyword 'await' outside an async function"),this.raiseRecoverable(e,"The keyword '"+s+"' is reserved"))},lt.parseIdent=function(t,e){var i=this.startNode();return t&&"never"===this.options.allowReserved&&(t=!1),this.type===y.name?i.name=this.value:this.type.keyword?(i.name=this.type.keyword,"class"!==i.name&&"function"!==i.name||this.lastTokEnd===this.lastTokStart+1&&46===this.input.charCodeAt(this.lastTokStart)||this.context.pop()):this.unexpected(),this.next(),this.finishNode(i,"Identifier"),t||this.checkUnreserved(i),i},lt.parseYield=function(){this.yieldPos||(this.yieldPos=this.start);var t=this.startNode();return this.next(),this.type===y.semi||this.canInsertSemicolon()||this.type!==y.star&&!this.type.startsExpr?(t.delegate=!1,t.argument=null):(t.delegate=this.eat(y.star),t.argument=this.parseMaybeAssign()),this.finishNode(t,"YieldExpression")},lt.parseAwait=function(){this.awaitPos||(this.awaitPos=this.start);var t=this.startNode();return this.next(),t.argument=this.parseMaybeUnary(null,!0),this.finishNode(t,"AwaitExpression")};var ft=J.prototype;ft.raise=function(t,e){var i=N(this.input,t);e+=" ("+i.line+":"+i.column+")";var s=new SyntaxError(e);throw s.pos=t,s.loc=i,s.raisedAt=this.pos,s},ft.raiseRecoverable=ft.raise,ft.curPosition=function(){if(this.options.locations)return new T(this.curLine,this.pos-this.lineStart)};var mt=J.prototype,xt=function(t){this.flags=t,this.var=[],this.lexical=[]};mt.enterScope=function(t){this.scopeStack.push(new xt(t))},mt.exitScope=function(){this.scopeStack.pop()},mt.declareName=function(t,e,i){var s=!1;if(e===K){var r=this.currentScope();s=r.lexical.indexOf(t)>-1||r.var.indexOf(t)>-1,r.lexical.push(t)}else if(e===Y){this.currentScope().lexical.push(t)}else if(e===X){var a=this.currentScope();s=a.lexical.indexOf(t)>-1,a.var.push(t)}else for(var n=this.scopeStack.length-1;n>=0;--n){var o=this.scopeStack[n];if(o.lexical.indexOf(t)>-1&&!(o.flags&G)&&o.lexical[0]===t&&(s=!0),o.var.push(t),o.flags&M)break}s&&this.raiseRecoverable(i,"Identifier '"+t+"' has already been declared")},mt.currentScope=function(){return this.scopeStack[this.scopeStack.length-1]},mt.currentVarScope=function(){for(var t=this.scopeStack.length-1;;t--){var e=this.scopeStack[t];if(e.flags&M)return e}},mt.currentThisScope=function(){for(var t=this.scopeStack.length-1;;t--){var e=this.scopeStack[t];if(e.flags&M&&!(e.flags&q))return e}};var gt=function(t,e,i){this.type="",this.start=e,this.end=0,t.options.locations&&(this.loc=new L(t,i)),t.options.directSourceFile&&(this.sourceFile=t.options.directSourceFile),t.options.ranges&&(this.range=[e,0])};exports.Node=gt;var vt=J.prototype;function yt(t,e,i,s){return t.type=e,t.end=i,this.options.locations&&(t.loc.end=s),this.options.ranges&&(t.range[1]=i),t}vt.startNode=function(){return new gt(this,this.start,this.startLoc)},vt.startNodeAt=function(t,e){return new gt(this,t,e)},vt.finishNode=function(t,e){return yt.call(this,t,e,this.lastTokEnd,this.lastTokEndLoc)},vt.finishNodeAt=function(t,e,i,s){return yt.call(this,t,e,i,s)};var _t=function(t,e,i,s,r){this.token=t,this.isExpr=!!e,this.preserveSpace=!!i,this.override=s,this.generator=!!r};exports.TokContext=_t;var bt={b_stat:new _t("{",!1),b_expr:new _t("{",!0),b_tmpl:new _t("${",!1),p_stat:new _t("(",!1),p_expr:new _t("(",!0),q_tmpl:new _t("`",!0,!0,function(t){return t.tryReadTemplateToken()}),f_stat:new _t("function",!1),f_expr:new _t("function",!0),f_expr_gen:new _t("function",!0,!1,null,!0),f_gen:new _t("function",!1,!1,null,!0)};exports.tokContexts=bt;var kt=J.prototype;kt.initialContext=function(){return[bt.b_stat]},kt.braceIsBlock=function(t){var e=this.curContext();return e===bt.f_expr||e===bt.f_stat||(t!==y.colon||e!==bt.b_stat&&e!==bt.b_expr?t===y._return||t===y.name&&this.exprAllowed?_.test(this.input.slice(this.lastTokEnd,this.start)):t===y._else||t===y.semi||t===y.eof||t===y.parenR||t===y.arrow||(t===y.braceL?e===bt.b_stat:t!==y._var&&t!==y._const&&t!==y.name&&!this.exprAllowed):!e.isExpr)},kt.inGeneratorContext=function(){for(var t=this.context.length-1;t>=1;t--){var e=this.context[t];if("function"===e.token)return e.generator}return!1},kt.updateContext=function(t){var e,i=this.type;i.keyword&&t===y.dot?this.exprAllowed=!1:(e=i.updateContext)?e.call(this,t):this.exprAllowed=i.beforeExpr},y.parenR.updateContext=y.braceR.updateContext=function(){if(1!==this.context.length){var t=this.context.pop();t===bt.b_stat&&"function"===this.curContext().token&&(t=this.context.pop()),this.exprAllowed=!t.isExpr}else this.exprAllowed=!0},y.braceL.updateContext=function(t){this.context.push(this.braceIsBlock(t)?bt.b_stat:bt.b_expr),this.exprAllowed=!0},y.dollarBraceL.updateContext=function(){this.context.push(bt.b_tmpl),this.exprAllowed=!0},y.parenL.updateContext=function(t){var e=t===y._if||t===y._for||t===y._with||t===y._while;this.context.push(e?bt.p_stat:bt.p_expr),this.exprAllowed=!0},y.incDec.updateContext=function(){},y._function.updateContext=y._class.updateContext=function(t){!t.beforeExpr||t===y.semi||t===y._else||t===y._return&&_.test(this.input.slice(this.lastTokEnd,this.start))||(t===y.colon||t===y.braceL)&&this.curContext()===bt.b_stat?this.context.push(bt.f_stat):this.context.push(bt.f_expr),this.exprAllowed=!1},y.backQuote.updateContext=function(){this.curContext()===bt.q_tmpl?this.context.pop():this.context.push(bt.q_tmpl),this.exprAllowed=!1},y.star.updateContext=function(t){if(t===y._function){var e=this.context.length-1;this.context[e]===bt.f_expr?this.context[e]=bt.f_expr_gen:this.context[e]=bt.f_gen}this.exprAllowed=!0},y.name.updateContext=function(t){var e=!1;this.options.ecmaVersion>=6&&t!==y.dot&&("of"===this.value&&!this.exprAllowed||"yield"===this.value&&this.inGeneratorContext())&&(e=!0),this.exprAllowed=e};var St={$LONE:["ASCII","ASCII_Hex_Digit","AHex","Alphabetic","Alpha","Any","Assigned","Bidi_Control","Bidi_C","Bidi_Mirrored","Bidi_M","Case_Ignorable","CI","Cased","Changes_When_Casefolded","CWCF","Changes_When_Casemapped","CWCM","Changes_When_Lowercased","CWL","Changes_When_NFKC_Casefolded","CWKCF","Changes_When_Titlecased","CWT","Changes_When_Uppercased","CWU","Dash","Default_Ignorable_Code_Point","DI","Deprecated","Dep","Diacritic","Dia","Emoji","Emoji_Component","Emoji_Modifier","Emoji_Modifier_Base","Emoji_Presentation","Extender","Ext","Grapheme_Base","Gr_Base","Grapheme_Extend","Gr_Ext","Hex_Digit","Hex","IDS_Binary_Operator","IDSB","IDS_Trinary_Operator","IDST","ID_Continue","IDC","ID_Start","IDS","Ideographic","Ideo","Join_Control","Join_C","Logical_Order_Exception","LOE","Lowercase","Lower","Math","Noncharacter_Code_Point","NChar","Pattern_Syntax","Pat_Syn","Pattern_White_Space","Pat_WS","Quotation_Mark","QMark","Radical","Regional_Indicator","RI","Sentence_Terminal","STerm","Soft_Dotted","SD","Terminal_Punctuation","Term","Unified_Ideograph","UIdeo","Uppercase","Upper","Variation_Selector","VS","White_Space","space","XID_Continue","XIDC","XID_Start","XIDS"],General_Category:["Cased_Letter","LC","Close_Punctuation","Pe","Connector_Punctuation","Pc","Control","Cc","cntrl","Currency_Symbol","Sc","Dash_Punctuation","Pd","Decimal_Number","Nd","digit","Enclosing_Mark","Me","Final_Punctuation","Pf","Format","Cf","Initial_Punctuation","Pi","Letter","L","Letter_Number","Nl","Line_Separator","Zl","Lowercase_Letter","Ll","Mark","M","Combining_Mark","Math_Symbol","Sm","Modifier_Letter","Lm","Modifier_Symbol","Sk","Nonspacing_Mark","Mn","Number","N","Open_Punctuation","Ps","Other","C","Other_Letter","Lo","Other_Number","No","Other_Punctuation","Po","Other_Symbol","So","Paragraph_Separator","Zp","Private_Use","Co","Punctuation","P","punct","Separator","Z","Space_Separator","Zs","Spacing_Mark","Mc","Surrogate","Cs","Symbol","S","Titlecase_Letter","Lt","Unassigned","Cn","Uppercase_Letter","Lu"],Script:["Adlam","Adlm","Ahom","Anatolian_Hieroglyphs","Hluw","Arabic","Arab","Armenian","Armn","Avestan","Avst","Balinese","Bali","Bamum","Bamu","Bassa_Vah","Bass","Batak","Batk","Bengali","Beng","Bhaiksuki","Bhks","Bopomofo","Bopo","Brahmi","Brah","Braille","Brai","Buginese","Bugi","Buhid","Buhd","Canadian_Aboriginal","Cans","Carian","Cari","Caucasian_Albanian","Aghb","Chakma","Cakm","Cham","Cherokee","Cher","Common","Zyyy","Coptic","Copt","Qaac","Cuneiform","Xsux","Cypriot","Cprt","Cyrillic","Cyrl","Deseret","Dsrt","Devanagari","Deva","Duployan","Dupl","Egyptian_Hieroglyphs","Egyp","Elbasan","Elba","Ethiopic","Ethi","Georgian","Geor","Glagolitic","Glag","Gothic","Goth","Grantha","Gran","Greek","Grek","Gujarati","Gujr","Gurmukhi","Guru","Han","Hani","Hangul","Hang","Hanunoo","Hano","Hatran","Hatr","Hebrew","Hebr","Hiragana","Hira","Imperial_Aramaic","Armi","Inherited","Zinh","Qaai","Inscriptional_Pahlavi","Phli","Inscriptional_Parthian","Prti","Javanese","Java","Kaithi","Kthi","Kannada","Knda","Katakana","Kana","Kayah_Li","Kali","Kharoshthi","Khar","Khmer","Khmr","Khojki","Khoj","Khudawadi","Sind","Lao","Laoo","Latin","Latn","Lepcha","Lepc","Limbu","Limb","Linear_A","Lina","Linear_B","Linb","Lisu","Lycian","Lyci","Lydian","Lydi","Mahajani","Mahj","Malayalam","Mlym","Mandaic","Mand","Manichaean","Mani","Marchen","Marc","Masaram_Gondi","Gonm","Meetei_Mayek","Mtei","Mende_Kikakui","Mend","Meroitic_Cursive","Merc","Meroitic_Hieroglyphs","Mero","Miao","Plrd","Modi","Mongolian","Mong","Mro","Mroo","Multani","Mult","Myanmar","Mymr","Nabataean","Nbat","New_Tai_Lue","Talu","Newa","Nko","Nkoo","Nushu","Nshu","Ogham","Ogam","Ol_Chiki","Olck","Old_Hungarian","Hung","Old_Italic","Ital","Old_North_Arabian","Narb","Old_Permic","Perm","Old_Persian","Xpeo","Old_South_Arabian","Sarb","Old_Turkic","Orkh","Oriya","Orya","Osage","Osge","Osmanya","Osma","Pahawh_Hmong","Hmng","Palmyrene","Palm","Pau_Cin_Hau","Pauc","Phags_Pa","Phag","Phoenician","Phnx","Psalter_Pahlavi","Phlp","Rejang","Rjng","Runic","Runr","Samaritan","Samr","Saurashtra","Saur","Sharada","Shrd","Shavian","Shaw","Siddham","Sidd","SignWriting","Sgnw","Sinhala","Sinh","Sora_Sompeng","Sora","Soyombo","Soyo","Sundanese","Sund","Syloti_Nagri","Sylo","Syriac","Syrc","Tagalog","Tglg","Tagbanwa","Tagb","Tai_Le","Tale","Tai_Tham","Lana","Tai_Viet","Tavt","Takri","Takr","Tamil","Taml","Tangut","Tang","Telugu","Telu","Thaana","Thaa","Thai","Tibetan","Tibt","Tifinagh","Tfng","Tirhuta","Tirh","Ugaritic","Ugar","Vai","Vaii","Warang_Citi","Wara","Yi","Yiii","Zanabazar_Square","Zanb"]};Array.prototype.push.apply(St.$LONE,St.General_Category),St.gc=St.General_Category,St.sc=St.Script_Extensions=St.scx=St.Script;var Ct=J.prototype,Et=function(t){this.parser=t,this.validFlags="gim"+(t.options.ecmaVersion>=6?"uy":"")+(t.options.ecmaVersion>=9?"s":""),this.source="",this.flags="",this.start=0,this.switchU=!1,this.switchN=!1,this.pos=0,this.lastIntValue=0,this.lastStringValue="",this.lastAssertionIsQuantifiable=!1,this.numCapturingParens=0,this.maxBackReference=0,this.groupNames=[],this.backReferenceNames=[]};function wt(t){return t<=65535?String.fromCharCode(t):(t-=65536,String.fromCharCode(55296+(t>>10),56320+(1023&t)))}function At(t){return 36===t||t>=40&&t<=43||46===t||63===t||t>=91&&t<=94||t>=123&&t<=125}function It(t){return u(t,!0)||36===t||95===t}function Pt(t){return l(t,!0)||36===t||95===t||8204===t||8205===t}function Tt(t){return t>=65&&t<=90||t>=97&&t<=122}function Lt(t){return t>=0&&t<=1114111}function Nt(t){return 100===t||68===t||115===t||83===t||119===t||87===t}function Vt(t){return Tt(t)||95===t}function Rt(t){return Vt(t)||Ot(t)}function Ot(t){return t>=48&&t<=57}function Dt(t){return t>=48&&t<=57||t>=65&&t<=70||t>=97&&t<=102}function Bt(t){return t>=65&&t<=70?t-65+10:t>=97&&t<=102?t-97+10:t-48}function Mt(t){return t>=48&&t<=55}Et.prototype.reset=function(t,e,i){var s=-1!==i.indexOf("u");this.start=0|t,this.source=e+"",this.flags=i,this.switchU=s&&this.parser.options.ecmaVersion>=6,this.switchN=s&&this.parser.options.ecmaVersion>=9},Et.prototype.raise=function(t){this.parser.raiseRecoverable(this.start,"Invalid regular expression: /"+this.source+"/: "+t)},Et.prototype.at=function(t){var e=this.source,i=e.length;if(t>=i)return-1;var s=e.charCodeAt(t);return!this.switchU||s<=55295||s>=57344||t+1>=i?s:(s<<10)+e.charCodeAt(t+1)-56613888},Et.prototype.nextIndex=function(t){var e=this.source,i=e.length;if(t>=i)return i;var s=e.charCodeAt(t);return!this.switchU||s<=55295||s>=57344||t+1>=i?t+1:t+2},Et.prototype.current=function(){return this.at(this.pos)},Et.prototype.lookahead=function(){return this.at(this.nextIndex(this.pos))},Et.prototype.advance=function(){this.pos=this.nextIndex(this.pos)},Et.prototype.eat=function(t){return this.current()===t&&(this.advance(),!0)},Ct.validateRegExpFlags=function(t){for(var e=t.validFlags,i=t.flags,s=0;s<i.length;s++){var r=i.charAt(s);-1===e.indexOf(r)&&this.raise(t.start,"Invalid regular expression flag"),i.indexOf(r,s+1)>-1&&this.raise(t.start,"Duplicate regular expression flag")}},Ct.validateRegExpPattern=function(t){this.regexp_pattern(t),!t.switchN&&this.options.ecmaVersion>=9&&t.groupNames.length>0&&(t.switchN=!0,this.regexp_pattern(t))},Ct.regexp_pattern=function(t){t.pos=0,t.lastIntValue=0,t.lastStringValue="",t.lastAssertionIsQuantifiable=!1,t.numCapturingParens=0,t.maxBackReference=0,t.groupNames.length=0,t.backReferenceNames.length=0,this.regexp_disjunction(t),t.pos!==t.source.length&&(t.eat(41)&&t.raise("Unmatched ')'"),(t.eat(93)||t.eat(125))&&t.raise("Lone quantifier brackets")),t.maxBackReference>t.numCapturingParens&&t.raise("Invalid escape");for(var e=0,i=t.backReferenceNames;e<i.length;e+=1){var s=i[e];-1===t.groupNames.indexOf(s)&&t.raise("Invalid named capture referenced")}},Ct.regexp_disjunction=function(t){for(this.regexp_alternative(t);t.eat(124);)this.regexp_alternative(t);this.regexp_eatQuantifier(t,!0)&&t.raise("Nothing to repeat"),t.eat(123)&&t.raise("Lone quantifier brackets")},Ct.regexp_alternative=function(t){for(;t.pos<t.source.length&&this.regexp_eatTerm(t););},Ct.regexp_eatTerm=function(t){return this.regexp_eatAssertion(t)?(t.lastAssertionIsQuantifiable&&this.regexp_eatQuantifier(t)&&t.switchU&&t.raise("Invalid quantifier"),!0):!(t.switchU?!this.regexp_eatAtom(t):!this.regexp_eatExtendedAtom(t))&&(this.regexp_eatQuantifier(t),!0)},Ct.regexp_eatAssertion=function(t){var e=t.pos;if(t.lastAssertionIsQuantifiable=!1,t.eat(94)||t.eat(36))return!0;if(t.eat(92)){if(t.eat(66)||t.eat(98))return!0;t.pos=e}if(t.eat(40)&&t.eat(63)){var i=!1;if(this.options.ecmaVersion>=9&&(i=t.eat(60)),t.eat(61)||t.eat(33))return this.regexp_disjunction(t),t.eat(41)||t.raise("Unterminated group"),t.lastAssertionIsQuantifiable=!i,!0}return t.pos=e,!1},Ct.regexp_eatQuantifier=function(t,e){return void 0===e&&(e=!1),!!this.regexp_eatQuantifierPrefix(t,e)&&(t.eat(63),!0)},Ct.regexp_eatQuantifierPrefix=function(t,e){return t.eat(42)||t.eat(43)||t.eat(63)||this.regexp_eatBracedQuantifier(t,e)},Ct.regexp_eatBracedQuantifier=function(t,e){var i=t.pos;if(t.eat(123)){var s=0,r=-1;if(this.regexp_eatDecimalDigits(t)&&(s=t.lastIntValue,t.eat(44)&&this.regexp_eatDecimalDigits(t)&&(r=t.lastIntValue),t.eat(125)))return-1!==r&&r<s&&!e&&t.raise("numbers out of order in {} quantifier"),!0;t.switchU&&!e&&t.raise("Incomplete quantifier"),t.pos=i}return!1},Ct.regexp_eatAtom=function(t){return this.regexp_eatPatternCharacters(t)||t.eat(46)||this.regexp_eatReverseSolidusAtomEscape(t)||this.regexp_eatCharacterClass(t)||this.regexp_eatUncapturingGroup(t)||this.regexp_eatCapturingGroup(t)},Ct.regexp_eatReverseSolidusAtomEscape=function(t){var e=t.pos;if(t.eat(92)){if(this.regexp_eatAtomEscape(t))return!0;t.pos=e}return!1},Ct.regexp_eatUncapturingGroup=function(t){var e=t.pos;if(t.eat(40)){if(t.eat(63)&&t.eat(58)){if(this.regexp_disjunction(t),t.eat(41))return!0;t.raise("Unterminated group")}t.pos=e}return!1},Ct.regexp_eatCapturingGroup=function(t){if(t.eat(40)){if(this.options.ecmaVersion>=9?this.regexp_groupSpecifier(t):63===t.current()&&t.raise("Invalid group"),this.regexp_disjunction(t),t.eat(41))return t.numCapturingParens+=1,!0;t.raise("Unterminated group")}return!1},Ct.regexp_eatExtendedAtom=function(t){return t.eat(46)||this.regexp_eatReverseSolidusAtomEscape(t)||this.regexp_eatCharacterClass(t)||this.regexp_eatUncapturingGroup(t)||this.regexp_eatCapturingGroup(t)||this.regexp_eatInvalidBracedQuantifier(t)||this.regexp_eatExtendedPatternCharacter(t)},Ct.regexp_eatInvalidBracedQuantifier=function(t){return this.regexp_eatBracedQuantifier(t,!0)&&t.raise("Nothing to repeat"),!1},Ct.regexp_eatSyntaxCharacter=function(t){var e=t.current();return!!At(e)&&(t.lastIntValue=e,t.advance(),!0)},Ct.regexp_eatPatternCharacters=function(t){for(var e=t.pos,i=0;-1!==(i=t.current())&&!At(i);)t.advance();return t.pos!==e},Ct.regexp_eatExtendedPatternCharacter=function(t){var e=t.current();return!(-1===e||36===e||e>=40&&e<=43||46===e||63===e||91===e||94===e||124===e)&&(t.advance(),!0)},Ct.regexp_groupSpecifier=function(t){if(t.eat(63)){if(this.regexp_eatGroupName(t))return-1!==t.groupNames.indexOf(t.lastStringValue)&&t.raise("Duplicate capture group name"),void t.groupNames.push(t.lastStringValue);t.raise("Invalid group")}},Ct.regexp_eatGroupName=function(t){if(t.lastStringValue="",t.eat(60)){if(this.regexp_eatRegExpIdentifierName(t)&&t.eat(62))return!0;t.raise("Invalid capture group name")}return!1},Ct.regexp_eatRegExpIdentifierName=function(t){if(t.lastStringValue="",this.regexp_eatRegExpIdentifierStart(t)){for(t.lastStringValue+=wt(t.lastIntValue);this.regexp_eatRegExpIdentifierPart(t);)t.lastStringValue+=wt(t.lastIntValue);return!0}return!1},Ct.regexp_eatRegExpIdentifierStart=function(t){var e=t.pos,i=t.current();return t.advance(),92===i&&this.regexp_eatRegExpUnicodeEscapeSequence(t)&&(i=t.lastIntValue),It(i)?(t.lastIntValue=i,!0):(t.pos=e,!1)},Ct.regexp_eatRegExpIdentifierPart=function(t){var e=t.pos,i=t.current();return t.advance(),92===i&&this.regexp_eatRegExpUnicodeEscapeSequence(t)&&(i=t.lastIntValue),Pt(i)?(t.lastIntValue=i,!0):(t.pos=e,!1)},Ct.regexp_eatAtomEscape=function(t){return!!(this.regexp_eatBackReference(t)||this.regexp_eatCharacterClassEscape(t)||this.regexp_eatCharacterEscape(t)||t.switchN&&this.regexp_eatKGroupName(t))||(t.switchU&&(99===t.current()&&t.raise("Invalid unicode escape"),t.raise("Invalid escape")),!1)},Ct.regexp_eatBackReference=function(t){var e=t.pos;if(this.regexp_eatDecimalEscape(t)){var i=t.lastIntValue;if(t.switchU)return i>t.maxBackReference&&(t.maxBackReference=i),!0;if(i<=t.numCapturingParens)return!0;t.pos=e}return!1},Ct.regexp_eatKGroupName=function(t){if(t.eat(107)){if(this.regexp_eatGroupName(t))return t.backReferenceNames.push(t.lastStringValue),!0;t.raise("Invalid named reference")}return!1},Ct.regexp_eatCharacterEscape=function(t){return this.regexp_eatControlEscape(t)||this.regexp_eatCControlLetter(t)||this.regexp_eatZero(t)||this.regexp_eatHexEscapeSequence(t)||this.regexp_eatRegExpUnicodeEscapeSequence(t)||!t.switchU&&this.regexp_eatLegacyOctalEscapeSequence(t)||this.regexp_eatIdentityEscape(t)},Ct.regexp_eatCControlLetter=function(t){var e=t.pos;if(t.eat(99)){if(this.regexp_eatControlLetter(t))return!0;t.pos=e}return!1},Ct.regexp_eatZero=function(t){return 48===t.current()&&!Ot(t.lookahead())&&(t.lastIntValue=0,t.advance(),!0)},Ct.regexp_eatControlEscape=function(t){var e=t.current();return 116===e?(t.lastIntValue=9,t.advance(),!0):110===e?(t.lastIntValue=10,t.advance(),!0):118===e?(t.lastIntValue=11,t.advance(),!0):102===e?(t.lastIntValue=12,t.advance(),!0):114===e&&(t.lastIntValue=13,t.advance(),!0)},Ct.regexp_eatControlLetter=function(t){var e=t.current();return!!Tt(e)&&(t.lastIntValue=e%32,t.advance(),!0)},Ct.regexp_eatRegExpUnicodeEscapeSequence=function(t){var e=t.pos;if(t.eat(117)){if(this.regexp_eatFixedHexDigits(t,4)){var i=t.lastIntValue;if(t.switchU&&i>=55296&&i<=56319){var s=t.pos;if(t.eat(92)&&t.eat(117)&&this.regexp_eatFixedHexDigits(t,4)){var r=t.lastIntValue;if(r>=56320&&r<=57343)return t.lastIntValue=1024*(i-55296)+(r-56320)+65536,!0}t.pos=s,t.lastIntValue=i}return!0}if(t.switchU&&t.eat(123)&&this.regexp_eatHexDigits(t)&&t.eat(125)&&Lt(t.lastIntValue))return!0;t.switchU&&t.raise("Invalid unicode escape"),t.pos=e}return!1},Ct.regexp_eatIdentityEscape=function(t){if(t.switchU)return!!this.regexp_eatSyntaxCharacter(t)||!!t.eat(47)&&(t.lastIntValue=47,!0);var e=t.current();return!(99===e||t.switchN&&107===e)&&(t.lastIntValue=e,t.advance(),!0)},Ct.regexp_eatDecimalEscape=function(t){t.lastIntValue=0;var e=t.current();if(e>=49&&e<=57){do{t.lastIntValue=10*t.lastIntValue+(e-48),t.advance()}while((e=t.current())>=48&&e<=57);return!0}return!1},Ct.regexp_eatCharacterClassEscape=function(t){var e=t.current();if(Nt(e))return t.lastIntValue=-1,t.advance(),!0;if(t.switchU&&this.options.ecmaVersion>=9&&(80===e||112===e)){if(t.lastIntValue=-1,t.advance(),t.eat(123)&&this.regexp_eatUnicodePropertyValueExpression(t)&&t.eat(125))return!0;t.raise("Invalid property name")}return!1},Ct.regexp_eatUnicodePropertyValueExpression=function(t){var e=t.pos;if(this.regexp_eatUnicodePropertyName(t)&&t.eat(61)){var i=t.lastStringValue;if(this.regexp_eatUnicodePropertyValue(t)){var s=t.lastStringValue;return this.regexp_validateUnicodePropertyNameAndValue(t,i,s),!0}}if(t.pos=e,this.regexp_eatLoneUnicodePropertyNameOrValue(t)){var r=t.lastStringValue;return this.regexp_validateUnicodePropertyNameOrValue(t,r),!0}return!1},Ct.regexp_validateUnicodePropertyNameAndValue=function(t,e,i){St.hasOwnProperty(e)&&-1!==St[e].indexOf(i)||t.raise("Invalid property name")},Ct.regexp_validateUnicodePropertyNameOrValue=function(t,e){-1===St.$LONE.indexOf(e)&&t.raise("Invalid property name")},Ct.regexp_eatUnicodePropertyName=function(t){var e=0;for(t.lastStringValue="";Vt(e=t.current());)t.lastStringValue+=wt(e),t.advance();return""!==t.lastStringValue},Ct.regexp_eatUnicodePropertyValue=function(t){var e=0;for(t.lastStringValue="";Rt(e=t.current());)t.lastStringValue+=wt(e),t.advance();return""!==t.lastStringValue},Ct.regexp_eatLoneUnicodePropertyNameOrValue=function(t){return this.regexp_eatUnicodePropertyValue(t)},Ct.regexp_eatCharacterClass=function(t){if(t.eat(91)){if(t.eat(94),this.regexp_classRanges(t),t.eat(93))return!0;t.raise("Unterminated character class")}return!1},Ct.regexp_classRanges=function(t){for(;this.regexp_eatClassAtom(t);){var e=t.lastIntValue;if(t.eat(45)&&this.regexp_eatClassAtom(t)){var i=t.lastIntValue;!t.switchU||-1!==e&&-1!==i||t.raise("Invalid character class"),-1!==e&&-1!==i&&e>i&&t.raise("Range out of order in character class")}}},Ct.regexp_eatClassAtom=function(t){var e=t.pos;if(t.eat(92)){if(this.regexp_eatClassEscape(t))return!0;if(t.switchU){var i=t.current();(99===i||Mt(i))&&t.raise("Invalid class escape"),t.raise("Invalid escape")}t.pos=e}var s=t.current();return 93!==s&&(t.lastIntValue=s,t.advance(),!0)},Ct.regexp_eatClassEscape=function(t){var e=t.pos;if(t.eat(98))return t.lastIntValue=8,!0;if(t.switchU&&t.eat(45))return t.lastIntValue=45,!0;if(!t.switchU&&t.eat(99)){if(this.regexp_eatClassControlLetter(t))return!0;t.pos=e}return this.regexp_eatCharacterClassEscape(t)||this.regexp_eatCharacterEscape(t)},Ct.regexp_eatClassControlLetter=function(t){var e=t.current();return!(!Ot(e)&&95!==e)&&(t.lastIntValue=e%32,t.advance(),!0)},Ct.regexp_eatHexEscapeSequence=function(t){var e=t.pos;if(t.eat(120)){if(this.regexp_eatFixedHexDigits(t,2))return!0;t.switchU&&t.raise("Invalid escape"),t.pos=e}return!1},Ct.regexp_eatDecimalDigits=function(t){var e=t.pos,i=0;for(t.lastIntValue=0;Ot(i=t.current());)t.lastIntValue=10*t.lastIntValue+(i-48),t.advance();return t.pos!==e},Ct.regexp_eatHexDigits=function(t){var e=t.pos,i=0;for(t.lastIntValue=0;Dt(i=t.current());)t.lastIntValue=16*t.lastIntValue+Bt(i),t.advance();return t.pos!==e},Ct.regexp_eatLegacyOctalEscapeSequence=function(t){if(this.regexp_eatOctalDigit(t)){var e=t.lastIntValue;if(this.regexp_eatOctalDigit(t)){var i=t.lastIntValue;e<=3&&this.regexp_eatOctalDigit(t)?t.lastIntValue=64*e+8*i+t.lastIntValue:t.lastIntValue=8*e+i}else t.lastIntValue=e;return!0}return!1},Ct.regexp_eatOctalDigit=function(t){var e=t.current();return Mt(e)?(t.lastIntValue=e-48,t.advance(),!0):(t.lastIntValue=0,!1)},Ct.regexp_eatFixedHexDigits=function(t,e){var i=t.pos;t.lastIntValue=0;for(var s=0;s<e;++s){var r=t.current();if(!Dt(r))return t.pos=i,!1;t.lastIntValue=16*t.lastIntValue+Bt(r),t.advance()}return!0};var Ut=function(t){this.type=t.type,this.value=t.value,this.start=t.start,this.end=t.end,t.options.locations&&(this.loc=new L(t,t.startLoc,t.endLoc)),t.options.ranges&&(this.range=[t.start,t.end])};exports.Token=Ut;var Ft=J.prototype;function qt(t){return t<=65535?String.fromCharCode(t):(t-=65536,String.fromCharCode(55296+(t>>10),56320+(1023&t)))}Ft.next=function(){this.options.onToken&&this.options.onToken(new Ut(this)),this.lastTokEnd=this.end,this.lastTokStart=this.start,this.lastTokEndLoc=this.endLoc,this.lastTokStartLoc=this.startLoc,this.nextToken()},Ft.getToken=function(){return this.next(),new Ut(this)},"undefined"!=typeof Symbol&&(Ft[Symbol.iterator]=function(){var t=this;return{next:function(){var e=t.getToken();return{done:e.type===y.eof,value:e}}}}),Ft.curContext=function(){return this.context[this.context.length-1]},Ft.nextToken=function(){var t=this.curContext();return t&&t.preserveSpace||this.skipSpace(),this.start=this.pos,this.options.locations&&(this.startLoc=this.curPosition()),this.pos>=this.input.length?this.finishToken(y.eof):t.override?t.override(this):void this.readToken(this.fullCharCodeAtPos())},Ft.readToken=function(t){return u(t,this.options.ecmaVersion>=6)||92===t?this.readWord():this.getTokenFromCode(t)},Ft.fullCharCodeAtPos=function(){var t=this.input.charCodeAt(this.pos);return t<=55295||t>=57344?t:(t<<10)+this.input.charCodeAt(this.pos+1)-56613888},Ft.skipBlockComment=function(){var t,e=this.options.onComment&&this.curPosition(),i=this.pos,s=this.input.indexOf("*/",this.pos+=2);if(-1===s&&this.raise(this.pos-2,"Unterminated comment"),this.pos=s+2,this.options.locations)for(b.lastIndex=i;(t=b.exec(this.input))&&t.index<this.pos;)++this.curLine,this.lineStart=t.index+t[0].length;this.options.onComment&&this.options.onComment(!0,this.input.slice(i+2,s),i,this.pos,e,this.curPosition())},Ft.skipLineComment=function(t){for(var e=this.pos,i=this.options.onComment&&this.curPosition(),s=this.input.charCodeAt(this.pos+=t);this.pos<this.input.length&&!k(s);)s=this.input.charCodeAt(++this.pos);this.options.onComment&&this.options.onComment(!1,this.input.slice(e+t,this.pos),e,this.pos,i,this.curPosition())},Ft.skipSpace=function(){t:for(;this.pos<this.input.length;){var t=this.input.charCodeAt(this.pos);switch(t){case 32:case 160:++this.pos;break;case 13:10===this.input.charCodeAt(this.pos+1)&&++this.pos;case 10:case 8232:case 8233:++this.pos,this.options.locations&&(++this.curLine,this.lineStart=this.pos);break;case 47:switch(this.input.charCodeAt(this.pos+1)){case 42:this.skipBlockComment();break;case 47:this.skipLineComment(2);break;default:break t}break;default:if(!(t>8&&t<14||t>=5760&&S.test(String.fromCharCode(t))))break t;++this.pos}}},Ft.finishToken=function(t,e){this.end=this.pos,this.options.locations&&(this.endLoc=this.curPosition());var i=this.type;this.type=t,this.value=e,this.updateContext(i)},Ft.readToken_dot=function(){var t=this.input.charCodeAt(this.pos+1);if(t>=48&&t<=57)return this.readNumber(!0);var e=this.input.charCodeAt(this.pos+2);return this.options.ecmaVersion>=6&&46===t&&46===e?(this.pos+=3,this.finishToken(y.ellipsis)):(++this.pos,this.finishToken(y.dot))},Ft.readToken_slash=function(){var t=this.input.charCodeAt(this.pos+1);return this.exprAllowed?(++this.pos,this.readRegexp()):61===t?this.finishOp(y.assign,2):this.finishOp(y.slash,1)},Ft.readToken_mult_modulo_exp=function(t){var e=this.input.charCodeAt(this.pos+1),i=1,s=42===t?y.star:y.modulo;return this.options.ecmaVersion>=7&&42===t&&42===e&&(++i,s=y.starstar,e=this.input.charCodeAt(this.pos+2)),61===e?this.finishOp(y.assign,i+1):this.finishOp(s,i)},Ft.readToken_pipe_amp=function(t){var e=this.input.charCodeAt(this.pos+1);return e===t?this.finishOp(124===t?y.logicalOR:y.logicalAND,2):61===e?this.finishOp(y.assign,2):this.finishOp(124===t?y.bitwiseOR:y.bitwiseAND,1)},Ft.readToken_caret=function(){return 61===this.input.charCodeAt(this.pos+1)?this.finishOp(y.assign,2):this.finishOp(y.bitwiseXOR,1)},Ft.readToken_plus_min=function(t){var e=this.input.charCodeAt(this.pos+1);return e===t?45!==e||this.inModule||62!==this.input.charCodeAt(this.pos+2)||0!==this.lastTokEnd&&!_.test(this.input.slice(this.lastTokEnd,this.pos))?this.finishOp(y.incDec,2):(this.skipLineComment(3),this.skipSpace(),this.nextToken()):61===e?this.finishOp(y.assign,2):this.finishOp(y.plusMin,1)},Ft.readToken_lt_gt=function(t){var e=this.input.charCodeAt(this.pos+1),i=1;return e===t?(i=62===t&&62===this.input.charCodeAt(this.pos+2)?3:2,61===this.input.charCodeAt(this.pos+i)?this.finishOp(y.assign,i+1):this.finishOp(y.bitShift,i)):33!==e||60!==t||this.inModule||45!==this.input.charCodeAt(this.pos+2)||45!==this.input.charCodeAt(this.pos+3)?(61===e&&(i=2),this.finishOp(y.relational,i)):(this.skipLineComment(4),this.skipSpace(),this.nextToken())},Ft.readToken_eq_excl=function(t){var e=this.input.charCodeAt(this.pos+1);return 61===e?this.finishOp(y.equality,61===this.input.charCodeAt(this.pos+2)?3:2):61===t&&62===e&&this.options.ecmaVersion>=6?(this.pos+=2,this.finishToken(y.arrow)):this.finishOp(61===t?y.eq:y.prefix,1)},Ft.getTokenFromCode=function(t){switch(t){case 46:return this.readToken_dot();case 40:return++this.pos,this.finishToken(y.parenL);case 41:return++this.pos,this.finishToken(y.parenR);case 59:return++this.pos,this.finishToken(y.semi);case 44:return++this.pos,this.finishToken(y.comma);case 91:return++this.pos,this.finishToken(y.bracketL);case 93:return++this.pos,this.finishToken(y.bracketR);case 123:return++this.pos,this.finishToken(y.braceL);case 125:return++this.pos,this.finishToken(y.braceR);case 58:return++this.pos,this.finishToken(y.colon);case 63:return++this.pos,this.finishToken(y.question);case 96:if(this.options.ecmaVersion<6)break;return++this.pos,this.finishToken(y.backQuote);case 48:var e=this.input.charCodeAt(this.pos+1);if(120===e||88===e)return this.readRadixNumber(16);if(this.options.ecmaVersion>=6){if(111===e||79===e)return this.readRadixNumber(8);if(98===e||66===e)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(t);case 47:return this.readToken_slash();case 37:case 42:return this.readToken_mult_modulo_exp(t);case 124:case 38:return this.readToken_pipe_amp(t);case 94:return this.readToken_caret();case 43:case 45:return this.readToken_plus_min(t);case 60:case 62:return this.readToken_lt_gt(t);case 61:case 33:return this.readToken_eq_excl(t);case 126:return this.finishOp(y.prefix,1)}this.raise(this.pos,"Unexpected character '"+qt(t)+"'")},Ft.finishOp=function(t,e){var i=this.input.slice(this.pos,this.pos+e);return this.pos+=e,this.finishToken(t,i)},Ft.readRegexp=function(){for(var t,e,i=this.pos;;){this.pos>=this.input.length&&this.raise(i,"Unterminated regular expression");var s=this.input.charAt(this.pos);if(_.test(s)&&this.raise(i,"Unterminated regular expression"),t)t=!1;else{if("["===s)e=!0;else if("]"===s&&e)e=!1;else if("/"===s&&!e)break;t="\\"===s}++this.pos}var r=this.input.slice(i,this.pos);++this.pos;var a=this.pos,n=this.readWord1();this.containsEsc&&this.unexpected(a);var o=this.regexpState||(this.regexpState=new Et(this));o.reset(i,r,n),this.validateRegExpFlags(o),this.validateRegExpPattern(o);var h=null;try{h=new RegExp(r,n)}catch(p){}return this.finishToken(y.regexp,{pattern:r,flags:n,value:h})},Ft.readInt=function(t,e){for(var i=this.pos,s=0,r=0,a=null==e?1/0:e;r<a;++r){var n=this.input.charCodeAt(this.pos),o=void 0;if((o=n>=97?n-97+10:n>=65?n-65+10:n>=48&&n<=57?n-48:1/0)>=t)break;++this.pos,s=s*t+o}return this.pos===i||null!=e&&this.pos-i!==e?null:s},Ft.readRadixNumber=function(t){this.pos+=2;var e=this.readInt(t);return null==e&&this.raise(this.start+2,"Expected number in radix "+t),u(this.fullCharCodeAtPos())&&this.raise(this.pos,"Identifier directly after number"),this.finishToken(y.num,e)},Ft.readNumber=function(t){var e=this.pos;t||null!==this.readInt(10)||this.raise(e,"Invalid number");var i=this.pos-e>=2&&48===this.input.charCodeAt(e);i&&this.strict&&this.raise(e,"Invalid number"),i&&/[89]/.test(this.input.slice(e,this.pos))&&(i=!1);var s=this.input.charCodeAt(this.pos);46!==s||i||(++this.pos,this.readInt(10),s=this.input.charCodeAt(this.pos)),69!==s&&101!==s||i||(43!==(s=this.input.charCodeAt(++this.pos))&&45!==s||++this.pos,null===this.readInt(10)&&this.raise(e,"Invalid number")),u(this.fullCharCodeAtPos())&&this.raise(this.pos,"Identifier directly after number");var r=this.input.slice(e,this.pos),a=i?parseInt(r,8):parseFloat(r);return this.finishToken(y.num,a)},Ft.readCodePoint=function(){var t;if(123===this.input.charCodeAt(this.pos)){this.options.ecmaVersion<6&&this.unexpected();var e=++this.pos;t=this.readHexChar(this.input.indexOf("}",this.pos)-this.pos),++this.pos,t>1114111&&this.invalidStringToken(e,"Code point out of bounds")}else t=this.readHexChar(4);return t},Ft.readString=function(t){for(var e="",i=++this.pos;;){this.pos>=this.input.length&&this.raise(this.start,"Unterminated string constant");var s=this.input.charCodeAt(this.pos);if(s===t)break;92===s?(e+=this.input.slice(i,this.pos),e+=this.readEscapedChar(!1),i=this.pos):(k(s,this.options.ecmaVersion>=10)&&this.raise(this.start,"Unterminated string constant"),++this.pos)}return e+=this.input.slice(i,this.pos++),this.finishToken(y.string,e)};var Gt={};Ft.tryReadTemplateToken=function(){this.inTemplateElement=!0;try{this.readTmplToken()}catch(t){if(t!==Gt)throw t;this.readInvalidTemplateToken()}this.inTemplateElement=!1},Ft.invalidStringToken=function(t,e){if(this.inTemplateElement&&this.options.ecmaVersion>=9)throw Gt;this.raise(t,e)},Ft.readTmplToken=function(){for(var t="",e=this.pos;;){this.pos>=this.input.length&&this.raise(this.start,"Unterminated template");var i=this.input.charCodeAt(this.pos);if(96===i||36===i&&123===this.input.charCodeAt(this.pos+1))return this.pos!==this.start||this.type!==y.template&&this.type!==y.invalidTemplate?(t+=this.input.slice(e,this.pos),this.finishToken(y.template,t)):36===i?(this.pos+=2,this.finishToken(y.dollarBraceL)):(++this.pos,this.finishToken(y.backQuote));if(92===i)t+=this.input.slice(e,this.pos),t+=this.readEscapedChar(!0),e=this.pos;else if(k(i)){switch(t+=this.input.slice(e,this.pos),++this.pos,i){case 13:10===this.input.charCodeAt(this.pos)&&++this.pos;case 10:t+="\n";break;default:t+=String.fromCharCode(i)}this.options.locations&&(++this.curLine,this.lineStart=this.pos),e=this.pos}else++this.pos}},Ft.readInvalidTemplateToken=function(){for(;this.pos<this.input.length;this.pos++)switch(this.input[this.pos]){case"\\":++this.pos;break;case"$":if("{"!==this.input[this.pos+1])break;case"`":return this.finishToken(y.invalidTemplate,this.input.slice(this.start,this.pos))}this.raise(this.start,"Unterminated template")},Ft.readEscapedChar=function(t){var e=this.input.charCodeAt(++this.pos);switch(++this.pos,e){case 110:return"\n";case 114:return"\r";case 120:return String.fromCharCode(this.readHexChar(2));case 117:return qt(this.readCodePoint());case 116:return"\t";case 98:return"\b";case 118:return"\v";case 102:return"\f";case 13:10===this.input.charCodeAt(this.pos)&&++this.pos;case 10:return this.options.locations&&(this.lineStart=this.pos,++this.curLine),"";default:if(e>=48&&e<=55){var i=this.input.substr(this.pos-1,3).match(/^[0-7]+/)[0],s=parseInt(i,8);return s>255&&(i=i.slice(0,-1),s=parseInt(i,8)),this.pos+=i.length-1,e=this.input.charCodeAt(this.pos),"0"===i&&56!==e&&57!==e||!this.strict&&!t||this.invalidStringToken(this.pos-1-i.length,t?"Octal literal in template string":"Octal literal in strict mode"),String.fromCharCode(s)}return String.fromCharCode(e)}},Ft.readHexChar=function(t){var e=this.pos,i=this.readInt(16,t);return null===i&&this.invalidStringToken(e,"Bad character escape sequence"),i},Ft.readWord1=function(){this.containsEsc=!1;for(var t="",e=!0,i=this.pos,s=this.options.ecmaVersion>=6;this.pos<this.input.length;){var r=this.fullCharCodeAtPos();if(l(r,s))this.pos+=r<=65535?1:2;else{if(92!==r)break;this.containsEsc=!0,t+=this.input.slice(i,this.pos);var a=this.pos;117!==this.input.charCodeAt(++this.pos)&&this.invalidStringToken(this.pos,"Expecting Unicode escape sequence \\uXXXX"),++this.pos;var n=this.readCodePoint();(e?u:l)(n,s)||this.invalidStringToken(a,"Invalid Unicode escape"),t+=qt(n),i=this.pos}e=!1}return t+this.input.slice(i,this.pos)},Ft.readWord=function(){var t=this.readWord1(),e=y.name;return this.keywords.test(t)&&(this.containsEsc&&this.raiseRecoverable(this.start,"Escape sequence in keyword "+t),e=g[t]),this.finishToken(e,t)};var Ht="6.0.4";function jt(t,e){return J.parse(t,e)}function Wt(t,e,i){return J.parseExpressionAt(t,e,i)}function zt(t,e){return J.tokenizer(t,e)}exports.version=Ht;
},{}],"HrMX":[function(require,module,exports) {
function n(n,e){if(!(n instanceof e))throw new TypeError("Cannot call a class as a function")}function e(n,e){for(var t=0;t<e.length;t++){var u=e[t];u.enumerable=u.enumerable||!1,u.configurable=!0,"value"in u&&(u.writable=!0),Object.defineProperty(n,u.key,u)}}function t(n,t,u){return t&&e(n.prototype,t),u&&e(n,u),n}var u=function(){function e(t,u){n(this,e),this.type=t,this.value=u}return t(e,null,[{key:"Return",value:function(n){return new e("return",n)}},{key:"Break",value:function(){return new e("break",arguments.length>0&&void 0!==arguments[0]?arguments[0]:null)}},{key:"Continue",value:function(n){return new e("continue",n)}},{key:"isReturn",value:function(n){return n instanceof e&&"return"===n.type}},{key:"isContinue",value:function(n){return n instanceof e&&"continue"===n.type}},{key:"isBreak",value:function(n){return n instanceof e&&"break"===n.type}},{key:"isSignal",value:function(n){return n instanceof e}}]),e}();module.exports=u;
},{}],"ulFJ":[function(require,module,exports) {
function e(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function t(e,t){for(var n=0;n<t.length;n++){var i=t[n];i.enumerable=i.enumerable||!1,i.configurable=!0,"value"in i&&(i.writable=!0),Object.defineProperty(e,i.key,i)}}function n(e,n,i){return n&&t(e.prototype,n),i&&t(e,i),e}var i=function(){function t(n){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:"";e(this,t),this.value=n,this.kind=i}return n(t,[{key:"set",value:function(e){if("const"===this.kind)throw new TypeError("Assignment to constant variable");this.value=e}},{key:"get",value:function(){return this.value}}]),t}(),o=function(){function t(n,i){e(this,t),this.obj=n,this.prop=i}return n(t,[{key:"set",value:function(e){this.obj[this.prop]=e}},{key:"get",value:function(){return this.obj[this.prop]}}]),t}();module.exports.SimpleValue=i,module.exports.MemberValue=o;
},{}],"7lST":[function(require,module,exports) {
function e(r){return(e="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(r)}function r(e){return o(e)||t(e)||n()}function n(){throw new TypeError("Invalid attempt to spread non-iterable instance")}function t(e){if(Symbol.iterator in Object(e)||"[object Arguments]"===Object.prototype.toString.call(e))return Array.from(e)}function o(e){if(Array.isArray(e)){for(var r=0,n=new Array(e.length);r<e.length;r++)n[r]=e[r];return n}}var a=require("../signal"),i=require("../value"),u=i.MemberValue,s={Program:function(e){var r=!0,n=!1,t=void 0;try{for(var o,a=e.node.body[Symbol.iterator]();!(r=(o=a.next()).done);r=!0){var i=o.value;e.traverse(i)}}catch(u){n=!0,t=u}finally{try{r||null==a.return||a.return()}finally{if(n)throw t}}},VariableDeclaration:function(e){var r=e.node.kind,n=!0,t=!1,o=void 0;try{for(var a,i=e.node.declarations[Symbol.iterator]();!(n=(a=i.next()).done);n=!0){var u=a.value,s=u.id.name,c=u.init?e.traverse(u.init):void 0;"block"===e.scope.type&&"var"===r?e.scope.parentScope.declare(s,c,r):e.scope.declare(s,c,r)}}catch(f){t=!0,o=f}finally{try{n||null==i.return||i.return()}finally{if(t)throw o}}},Identifier:function(e){if("undefined"!==e.node.name)return e.scope.get(e.node.name).value},Literal:function(e){return e.node.value},ExpressionStatement:function(e){return e.traverse(e.node.expression)},CallExpression:function(e){var r,n=e.traverse(e.node.callee),t=e.node.arguments.map(function(r){return e.traverse(r)});return"MemberExpression"===e.node.callee.type&&(r=e.traverse(e.node.callee.object)),n.apply(r,t)},MemberExpression:function(e){return e.traverse(e.node.object)[e.node.property.name]},ObjectExpression:function(e){var r={},n=!0,t=!1,o=void 0;try{for(var a,i=e.node.properties[Symbol.iterator]();!(n=(a=i.next()).done);n=!0){var u=a.value,s=void 0;if("Literal"===u.key.type)s="".concat(u.key.value);else{if("Identifier"!==u.key.type)throw new Error('canjs: [ObjectExpression] Unsupported property key type "'.concat(u.key.type,'"'));s=u.key.name}r[s]=e.traverse(u.value)}}catch(c){t=!0,o=c}finally{try{n||null==i.return||i.return()}finally{if(t)throw o}}return r},ArrayExpression:function(e){return e.node.elements.map(function(r){return e.traverse(r)})},BlockStatement:function(e){var r=e.createScope("block"),n=!0,t=!1,o=void 0;try{for(var i,u=e.node.body[Symbol.iterator]();!(n=(i=u.next()).done);n=!0){var s=i.value;if("VariableDeclaration"===s.type&&"var"===s.kind){var c=!0,f=!1,l=void 0;try{for(var p,v=s.declarations[Symbol.iterator]();!(c=(p=v.next()).done);c=!0){var d=p.value;d.init?r.declare(d.id.name,e.traverse(d.init,{scope:r}),s.kind):r.declare(d.id.name,void 0,s.kind)}}catch(E){f=!0,l=E}finally{try{c||null==v.return||v.return()}finally{if(f)throw 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