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  1. var babylon = (function () {
  2. function unwrapExports (x) {
  3.         return x && x.__esModule ? x['default'] : x;
  4. }
  5.  
  6. function createCommonjsModule(fn, module) {
  7.         return module = { exports: {} }, fn(module, module.exports), module.exports;
  8. }
  9.  
  10. var parserBabylon_1 = createCommonjsModule(function (module) {
  11. 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this.state.exprAllowed=!0;},C.name.updateContext=function(t){this.state.exprAllowed=!1,t!==C._let&&t!==C._const&&t!==C._var||M.test(this.input.slice(this.state.end))&&(this.state.exprAllowed=!0);},C.braceL.updateContext=function(t){this.state.context.push(this.braceIsBlock(t)?V.braceStatement:V.braceExpression),this.state.exprAllowed=!0;},C.dollarBraceL.updateContext=function(){this.state.context.push(V.templateQuasi),this.state.exprAllowed=!0;},C.parenL.updateContext=function(t){var e=t===C._if||t===C._for||t===C._with||t===C._while;this.state.context.push(e?V.parenStatement:V.parenExpression),this.state.exprAllowed=!0;},C.incDec.updateContext=function(){},C._function.updateContext=function(){this.curContext()!==V.braceStatement&&this.state.context.push(V.functionExpression),this.state.exprAllowed=!1;},C.backQuote.updateContext=function(){this.curContext()===V.template?this.state.context.pop():this.state.context.push(V.template),this.state.exprAllowed=!1;};var U=function t(e,s){g(this,t),this.line=e,this.column=s;},X=function t(e,s){g(this,t),this.start=e,this.end=s;},J=function(t){function e(){return g(this,e),P(this,t.apply(this,arguments))}return w(e,t),e.prototype.raise=function(t,e){var s=h(this.input,t);e+=" ("+s.line+":"+s.column+")";var i=new SyntaxError(e);throw i.pos=t,i.loc=s,i},e}(function(t){function e(){return g(this,e),P(this,t.apply(this,arguments))}return w(e,t),e.prototype.addComment=function(t){this.filename&&(t.loc.filename=this.filename),this.state.trailingComments.push(t),this.state.leadingComments.push(t);},e.prototype.processComment=function(t){if(!("Program"===t.type&&t.body.length>0)){var e=this.state.commentStack,s=void 0,i=void 0,r=void 0,a=void 0,n=void 0;if(this.state.trailingComments.length>0)this.state.trailingComments[0].start>=t.end?(r=this.state.trailingComments,this.state.trailingComments=[]):this.state.trailingComments.length=0;else{var o=p(e);e.length>0&&o.trailingComments&&o.trailingComments[0].start>=t.end&&(r=o.trailingComments,o.trailingComments=null);}for(e.length>0&&p(e).start>=t.start&&(s=e.pop());e.length>0&&p(e).start>=t.start;)i=e.pop();if(!i&&s&&(i=s),s&&("ObjectProperty"===s.type||"CallExpression"===t.type)&&this.state.leadingComments.length>0&&p(this.state.leadingComments).start>=t.start&&this.state.commentPreviousNode){for(n=0;n<this.state.leadingComments.length;n++)this.state.leadingComments[n].end<this.state.commentPreviousNode.end&&(this.state.leadingComments.splice(n,1),n--);this.state.leadingComments.length>0&&(s.trailingComments=this.state.leadingComments,this.state.leadingComments=[]);}if(i){if(i.leadingComments)if(i!==t&&p(i.leadingComments).end<=t.start)t.leadingComments=i.leadingComments,i.leadingComments=null;else for(a=i.leadingComments.length-2;a>=0;--a)if(i.leadingComments[a].end<=t.start){t.leadingComments=i.leadingComments.splice(0,a+1);break}}else if(this.state.leadingComments.length>0)if(p(this.state.leadingComments).end<=t.start){if(this.state.commentPreviousNode)for(n=0;n<this.state.leadingComments.length;n++)this.state.leadingComments[n].end<this.state.commentPreviousNode.end&&(this.state.leadingComments.splice(n,1),n--);this.state.leadingComments.length>0&&(t.leadingComments=this.state.leadingComments,this.state.leadingComments=[]);}else{for(a=0;a<this.state.leadingComments.length&&!(this.state.leadingComments[a].end>t.start);a++);var h=this.state.leadingComments.slice(0,a);t.leadingComments=0===h.length?null:h,0===(r=this.state.leadingComments.slice(a)).length&&(r=null);}this.state.commentPreviousNode=t,r&&(r.length&&r[0].start>=t.start&&p(r).end<=t.end?t.innerComments=r:t.trailingComments=r),e.push(t);}},e}(function(){function t(){g(this,t);}return t.prototype.isReservedWord=function(t){return"await"===t?this.inModule:S[6](t)},t.prototype.hasPlugin=function(t){return!!this.plugins[t]},t}())),W=function(){function t(){g(this,t);}return t.prototype.init=function(t,e){this.strict=!1!==t.strictMode&&"module"===t.sourceType,this.input=e,this.potentialArrowAt=-1,this.inMethod=this.inFunction=this.inGenerator=this.inAsync=this.inPropertyName=this.inType=this.inClass=this.inClassProperty=this.noAnonFunctionType=!1,this.labels=[],this.decorators=[],this.tokens=[],this.comments=[],this.trailingComments=[],this.leadingComments=[],this.commentStack=[],this.pos=this.lineStart=0,this.curLine=t.startLine,this.type=C.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=[V.braceStatement],this.exprAllowed=!0,this.containsEsc=this.containsOctal=!1,this.octalPosition=null,this.invalidTemplateEscapePosition=null,this.exportedIdentifiers=[];},t.prototype.curPosition=function(){return new U(this.curLine,this.pos-this.lineStart)},t.prototype.clone=function(e){var s=new t;for(var i in this){var r=this[i];e&&"context"!==i||!Array.isArray(r)||(r=r.slice()),s[i]=r;}return s},t}(),G=function t(e){g(this,t),this.type=e.type,this.value=e.value,this.start=e.start,this.end=e.end,this.loc=new X(e.startLoc,e.endLoc);},K=function(t){function e(){return g(this,e),P(this,t.apply(this,arguments))}return w(e,t),e.prototype.addExtra=function(t,e,s){t&&((t.extra=t.extra||{})[e]=s);},e.prototype.isRelational=function(t){return this.match(C.relational)&&this.state.value===t},e.prototype.expectRelational=function(t){this.isRelational(t)?this.next():this.unexpected(null,C.relational);},e.prototype.isContextual=function(t){return this.match(C.name)&&this.state.value===t},e.prototype.eatContextual=function(t){return this.state.value===t&&this.eat(C.name)},e.prototype.expectContextual=function(t,e){this.eatContextual(t)||this.unexpected(null,e);},e.prototype.canInsertSemicolon=function(){return this.match(C.eof)||this.match(C.braceR)||M.test(this.input.slice(this.state.lastTokEnd,this.state.start))},e.prototype.isLineTerminator=function(){return this.eat(C.semi)||this.canInsertSemicolon()},e.prototype.semicolon=function(){this.isLineTerminator()||this.unexpected(null,C.semi);},e.prototype.expect=function(t,e){this.eat(t)||this.unexpected(e,t);},e.prototype.unexpected=function(t){var e=arguments.length>1&&void 0!==arguments[1]?arguments[1]:"Unexpected token";throw"string"!=typeof e&&(e="Unexpected token, expected "+e.label),this.raise(null!=t?t:this.state.start,e)},e}(function(t){function e(s,i){g(this,e);var r=P(this,t.call(this));return r.state=new W,r.state.init(s,i),r}return w(e,t),e.prototype.next=function(){this.isLookahead||this.state.tokens.push(new G(this.state)),this.state.lastTokEnd=this.state.end,this.state.lastTokStart=this.state.start,this.state.lastTokEndLoc=this.state.endLoc,this.state.lastTokStartLoc=this.state.startLoc,this.nextToken();},e.prototype.eat=function(t){return!!this.match(t)&&(this.next(),!0)},e.prototype.match=function(t){return this.state.type===t},e.prototype.isKeyword=function(t){return L(t)},e.prototype.lookahead=function(){var t=this.state;this.state=t.clone(!0),this.isLookahead=!0,this.next(),this.isLookahead=!1;var e=this.state.clone(!0);return this.state=t,e},e.prototype.setStrict=function(t){if(this.state.strict=t,this.match(C.num)||this.match(C.string)){for(this.state.pos=this.state.start;this.state.pos<this.state.lineStart;)this.state.lineStart=this.input.lastIndexOf("\n",this.state.lineStart-2)+1,--this.state.curLine;this.nextToken();}},e.prototype.curContext=function(){return this.state.context[this.state.context.length-1]},e.prototype.nextToken=function(){var t=this.curContext();return t&&t.preserveSpace||this.skipSpace(),this.state.containsOctal=!1,this.state.octalPosition=null,this.state.start=this.state.pos,this.state.startLoc=this.state.curPosition(),this.state.pos>=this.input.length?this.finishToken(C.eof):t.override?t.override(this):this.readToken(this.fullCharCodeAtPos())},e.prototype.readToken=function(t){return a(t)||92===t?this.readWord():this.getTokenFromCode(t)},e.prototype.fullCharCodeAtPos=function(){var t=this.input.charCodeAt(this.state.pos);return t<=55295||t>=57344?t:(t<<10)+this.input.charCodeAt(this.state.pos+1)-56613888},e.prototype.pushComment=function(t,e,s,i,r,a){var n={type:t?"CommentBlock":"CommentLine",value:e,start:s,end:i,loc:new X(r,a)};this.isLookahead||(this.state.tokens.push(n),this.state.comments.push(n),this.addComment(n));},e.prototype.skipBlockComment=function(){var t=this.state.curPosition(),e=this.state.pos,s=this.input.indexOf("*/",this.state.pos+=2);-1===s&&this.raise(this.state.pos-2,"Unterminated comment"),this.state.pos=s+2,F.lastIndex=e;for(var i=void 0;(i=F.exec(this.input))&&i.index<this.state.pos;)++this.state.curLine,this.state.lineStart=i.index+i[0].length;this.pushComment(!0,this.input.slice(e+2,s),e,this.state.pos,t,this.state.curPosition());},e.prototype.skipLineComment=function(t){for(var e=this.state.pos,s=this.state.curPosition(),i=this.input.charCodeAt(this.state.pos+=t);this.state.pos<this.input.length&&10!==i&&13!==i&&8232!==i&&8233!==i;)++this.state.pos,i=this.input.charCodeAt(this.state.pos);this.pushComment(!1,this.input.slice(e+t,this.state.pos),e,this.state.pos,s,this.state.curPosition());},e.prototype.skipSpace=function(){t:for(;this.state.pos<this.input.length;){var t=this.input.charCodeAt(this.state.pos);switch(t){case 32:case 160:++this.state.pos;break;case 13:10===this.input.charCodeAt(this.state.pos+1)&&++this.state.pos;case 10:case 8232:case 8233:++this.state.pos,++this.state.curLine,this.state.lineStart=this.state.pos;break;case 47:switch(this.input.charCodeAt(this.state.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&&B.test(String.fromCharCode(t))))break t;++this.state.pos;}}},e.prototype.finishToken=function(t,e){this.state.end=this.state.pos,this.state.endLoc=this.state.curPosition();var s=this.state.type;this.state.type=t,this.state.value=e,this.updateContext(s);},e.prototype.readToken_dot=function(){var t=this.input.charCodeAt(this.state.pos+1);if(t>=48&&t<=57)return this.readNumber(!0);var e=this.input.charCodeAt(this.state.pos+2);return 46===t&&46===e?(this.state.pos+=3,this.finishToken(C.ellipsis)):(++this.state.pos,this.finishToken(C.dot))},e.prototype.readToken_slash=function(){return this.state.exprAllowed?(++this.state.pos,this.readRegexp()):61===this.input.charCodeAt(this.state.pos+1)?this.finishOp(C.assign,2):this.finishOp(C.slash,1)},e.prototype.readToken_mult_modulo=function(t){var e=42===t?C.star:C.modulo,s=1,i=this.input.charCodeAt(this.state.pos+1);return 42===i&&(s++,i=this.input.charCodeAt(this.state.pos+2),e=C.exponent),61===i&&(s++,e=C.assign),this.finishOp(e,s)},e.prototype.readToken_pipe_amp=function(t){var e=this.input.charCodeAt(this.state.pos+1);return e===t?this.finishOp(124===t?C.logicalOR:C.logicalAND,2):61===e?this.finishOp(C.assign,2):124===t&&125===e&&this.hasPlugin("flow")?this.finishOp(C.braceBarR,2):this.finishOp(124===t?C.bitwiseOR:C.bitwiseAND,1)},e.prototype.readToken_caret=function(){return 61===this.input.charCodeAt(this.state.pos+1)?this.finishOp(C.assign,2):this.finishOp(C.bitwiseXOR,1)},e.prototype.readToken_plus_min=function(t){var e=this.input.charCodeAt(this.state.pos+1);return e===t?45===e&&62===this.input.charCodeAt(this.state.pos+2)&&M.test(this.input.slice(this.state.lastTokEnd,this.state.pos))?(this.skipLineComment(3),this.skipSpace(),this.nextToken()):this.finishOp(C.incDec,2):61===e?this.finishOp(C.assign,2):this.finishOp(C.plusMin,1)},e.prototype.readToken_lt_gt=function(t){var e=this.input.charCodeAt(this.state.pos+1),s=1;return e===t?(s=62===t&&62===this.input.charCodeAt(this.state.pos+2)?3:2,61===this.input.charCodeAt(this.state.pos+s)?this.finishOp(C.assign,s+1):this.finishOp(C.bitShift,s)):33===e&&60===t&&45===this.input.charCodeAt(this.state.pos+2)&&45===this.input.charCodeAt(this.state.pos+3)?(this.inModule&&this.unexpected(),this.skipLineComment(4),this.skipSpace(),this.nextToken()):(61===e&&(s=2),this.finishOp(C.relational,s))},e.prototype.readToken_eq_excl=function(t){var e=this.input.charCodeAt(this.state.pos+1);return 61===e?this.finishOp(C.equality,61===this.input.charCodeAt(this.state.pos+2)?3:2):61===t&&62===e?(this.state.pos+=2,this.finishToken(C.arrow)):this.finishOp(61===t?C.eq:C.prefix,1)},e.prototype.getTokenFromCode=function(t){switch(t){case 35:if(this.hasPlugin("classPrivateProperties")&&this.state.inClass)return++this.state.pos,this.finishToken(C.hash);this.raise(this.state.pos,"Unexpected character '"+c(t)+"'");case 46:return this.readToken_dot();case 40:return++this.state.pos,this.finishToken(C.parenL);case 41:return++this.state.pos,this.finishToken(C.parenR);case 59:return++this.state.pos,this.finishToken(C.semi);case 44:return++this.state.pos,this.finishToken(C.comma);case 91:return++this.state.pos,this.finishToken(C.bracketL);case 93:return++this.state.pos,this.finishToken(C.bracketR);case 123:return this.hasPlugin("flow")&&124===this.input.charCodeAt(this.state.pos+1)?this.finishOp(C.braceBarL,2):(++this.state.pos,this.finishToken(C.braceL));case 125:return++this.state.pos,this.finishToken(C.braceR);case 58:return this.hasPlugin("functionBind")&&58===this.input.charCodeAt(this.state.pos+1)?this.finishOp(C.doubleColon,2):(++this.state.pos,this.finishToken(C.colon));case 63:return++this.state.pos,this.finishToken(C.question);case 64:return++this.state.pos,this.finishToken(C.at);case 96:return++this.state.pos,this.finishToken(C.backQuote);case 48:var e=this.input.charCodeAt(this.state.pos+1);if(120===e||88===e)return this.readRadixNumber(16);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(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(C.prefix,1)}this.raise(this.state.pos,"Unexpected character '"+c(t)+"'");},e.prototype.finishOp=function(t,e){var s=this.input.slice(this.state.pos,this.state.pos+e);return this.state.pos+=e,this.finishToken(t,s)},e.prototype.readRegexp=function(){for(var t=this.state.pos,e=void 0,s=void 0;;){this.state.pos>=this.input.length&&this.raise(t,"Unterminated regular expression");var i=this.input.charAt(this.state.pos);if(M.test(i)&&this.raise(t,"Unterminated regular expression"),e)e=!1;else{if("["===i)s=!0;else if("]"===i&&s)s=!1;else if("/"===i&&!s)break;e="\\"===i;}++this.state.pos;}var r=this.input.slice(t,this.state.pos);++this.state.pos;var a=this.readWord1();return a&&(/^[gmsiyu]*$/.test(a)||this.raise(t,"Invalid regular expression flag")),this.finishToken(C.regexp,{pattern:r,flags:a})},e.prototype.readInt=function(t,e){for(var s=this.state.pos,i=0,r=0,a=null==e?1/0:e;r<a;++r){var n=this.input.charCodeAt(this.state.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.state.pos,i=i*t+o;}return this.state.pos===s||null!=e&&this.state.pos-s!==e?null:i},e.prototype.readRadixNumber=function(t){this.state.pos+=2;var e=this.readInt(t);return null==e&&this.raise(this.state.start+2,"Expected number in radix "+t),a(this.fullCharCodeAtPos())&&this.raise(this.state.pos,"Identifier directly after number"),this.finishToken(C.num,e)},e.prototype.readNumber=function(t){var e=this.state.pos,s=48===this.input.charCodeAt(e),i=!1;t||null!==this.readInt(10)||this.raise(e,"Invalid number"),s&&this.state.pos==e+1&&(s=!1);var r=this.input.charCodeAt(this.state.pos);46!==r||s||(++this.state.pos,this.readInt(10),i=!0,r=this.input.charCodeAt(this.state.pos)),69!==r&&101!==r||s||(43!==(r=this.input.charCodeAt(++this.state.pos))&&45!==r||++this.state.pos,null===this.readInt(10)&&this.raise(e,"Invalid number"),i=!0),a(this.fullCharCodeAtPos())&&this.raise(this.state.pos,"Identifier directly after number");var n=this.input.slice(e,this.state.pos),o=void 0;return i?o=parseFloat(n):s&&1!==n.length?this.state.strict?this.raise(e,"Invalid number"):o=/[89]/.test(n)?parseInt(n,10):parseInt(n,8):o=parseInt(n,10),this.finishToken(C.num,o)},e.prototype.readCodePoint=function(t){var e=void 0;if(123===this.input.charCodeAt(this.state.pos)){var s=++this.state.pos;if(e=this.readHexChar(this.input.indexOf("}",this.state.pos)-this.state.pos,t),++this.state.pos,null===e)--this.state.invalidTemplateEscapePosition;else if(e>1114111){if(!t)return this.state.invalidTemplateEscapePosition=s-2,null;this.raise(s,"Code point out of bounds");}}else e=this.readHexChar(4,t);return e},e.prototype.readString=function(t){for(var e="",s=++this.state.pos;;){this.state.pos>=this.input.length&&this.raise(this.state.start,"Unterminated string constant");var i=this.input.charCodeAt(this.state.pos);if(i===t)break;92===i?(e+=this.input.slice(s,this.state.pos),e+=this.readEscapedChar(!1),s=this.state.pos):(o(i)&&this.raise(this.state.start,"Unterminated string constant"),++this.state.pos);}return e+=this.input.slice(s,this.state.pos++),this.finishToken(C.string,e)},e.prototype.readTmplToken=function(){for(var t="",e=this.state.pos,s=!1;;){this.state.pos>=this.input.length&&this.raise(this.state.start,"Unterminated template");var i=this.input.charCodeAt(this.state.pos);if(96===i||36===i&&123===this.input.charCodeAt(this.state.pos+1))return this.state.pos===this.state.start&&this.match(C.template)?36===i?(this.state.pos+=2,this.finishToken(C.dollarBraceL)):(++this.state.pos,this.finishToken(C.backQuote)):(t+=this.input.slice(e,this.state.pos),this.finishToken(C.template,s?null:t));if(92===i){t+=this.input.slice(e,this.state.pos);var r=this.readEscapedChar(!0);null===r?s=!0:t+=r,e=this.state.pos;}else if(o(i)){switch(t+=this.input.slice(e,this.state.pos),++this.state.pos,i){case 13:10===this.input.charCodeAt(this.state.pos)&&++this.state.pos;case 10:t+="\n";break;default:t+=String.fromCharCode(i);}++this.state.curLine,this.state.lineStart=this.state.pos,e=this.state.pos;}else++this.state.pos;}},e.prototype.readEscapedChar=function(t){var e=!t,s=this.input.charCodeAt(++this.state.pos);switch(++this.state.pos,s){case 110:return"\n";case 114:return"\r";case 120:var i=this.readHexChar(2,e);return null===i?null:String.fromCharCode(i);case 117:var r=this.readCodePoint(e);return null===r?null:c(r);case 116:return"\t";case 98:return"\b";case 118:return"\v";case 102:return"\f";case 13:10===this.input.charCodeAt(this.state.pos)&&++this.state.pos;case 10:return this.state.lineStart=this.state.pos,++this.state.curLine,"";default:if(s>=48&&s<=55){var a=this.state.pos-1,n=this.input.substr(this.state.pos-1,3).match(/^[0-7]+/)[0],o=parseInt(n,8);if(o>255&&(n=n.slice(0,-1),o=parseInt(n,8)),o>0){if(t)return this.state.invalidTemplateEscapePosition=a,null;this.state.strict?this.raise(a,"Octal literal in strict mode"):this.state.containsOctal||(this.state.containsOctal=!0,this.state.octalPosition=a);}return this.state.pos+=n.length-1,String.fromCharCode(o)}return String.fromCharCode(s)}},e.prototype.readHexChar=function(t,e){var s=this.state.pos,i=this.readInt(16,t);return null===i&&(e?this.raise(s,"Bad character escape sequence"):(this.state.pos=s-1,this.state.invalidTemplateEscapePosition=s-1)),i},e.prototype.readWord1=function(){this.state.containsEsc=!1;for(var t="",e=!0,s=this.state.pos;this.state.pos<this.input.length;){var i=this.fullCharCodeAtPos();if(n(i))this.state.pos+=i<=65535?1:2;else{if(92!==i)break;this.state.containsEsc=!0,t+=this.input.slice(s,this.state.pos);var r=this.state.pos;117!==this.input.charCodeAt(++this.state.pos)&&this.raise(this.state.pos,"Expecting Unicode escape sequence \\uXXXX"),++this.state.pos;var o=this.readCodePoint(!0);(e?a:n)(o,!0)||this.raise(r,"Invalid Unicode escape"),t+=c(o),s=this.state.pos;}e=!1;}return t+this.input.slice(s,this.state.pos)},e.prototype.readWord=function(){var t=this.readWord1(),e=C.name;return!this.state.containsEsc&&this.isKeyword(t)&&(e=N[t]),this.finishToken(e,t)},e.prototype.braceIsBlock=function(t){if(t===C.colon){var e=this.curContext();if(e===V.braceStatement||e===V.braceExpression)return!e.isExpr}return t===C._return?M.test(this.input.slice(this.state.lastTokEnd,this.state.start)):t===C._else||t===C.semi||t===C.eof||t===C.parenR||(t===C.braceL?this.curContext()===V.braceStatement:!this.state.exprAllowed)},e.prototype.updateContext=function(t){var e=this.state.type,s=void 0;e.keyword&&t===C.dot?this.state.exprAllowed=!1:(s=e.updateContext)?s.call(this,t):this.state.exprAllowed=e.beforeExpr;},e}(J)),z=["leadingComments","trailingComments","innerComments"],Q=function(){function t(e,s,i){g(this,t),this.type="",this.start=s,this.end=0,this.loc=new X(i),e&&e.options.ranges&&(this.range=[s,0]),e&&e.filename&&(this.loc.filename=e.filename);}return t.prototype.__clone=function(){var e=new t;for(var s in this)z.indexOf(s)<0&&(e[s]=this[s]);return e},t}(),Y=[],H={kind:"loop"},$={kind:"switch"},Z={},tt=function(t){function e(i,r){g(this,e),i=s(i);var a=P(this,t.call(this,i,r));return a.options=i,a.inModule="module"===a.options.sourceType,a.input=r,a.plugins=l(a.options.plugins),a.filename=i.sourceFilename,0===a.state.pos&&"#"===a.input[0]&&"!"===a.input[1]&&a.skipLineComment(2),a}return w(e,t),e.prototype.parse=function(){var t=this.startNode(),e=this.startNode();return this.nextToken(),this.parseTopLevel(t,e)},e}(function(t){function e(){return g(this,e),P(this,t.apply(this,arguments))}return w(e,t),e.prototype.parseTopLevel=function(t,e){return e.sourceType=this.options.sourceType,this.parseBlockBody(e,!0,!0,C.eof),t.program=this.finishNode(e,"Program"),t.comments=this.state.comments,t.tokens=this.state.tokens,this.finishNode(t,"File")},e.prototype.stmtToDirective=function(t){var e=t.expression,s=this.startNodeAt(e.start,e.loc.start),i=this.startNodeAt(t.start,t.loc.start),r=this.input.slice(e.start,e.end),a=s.value=r.slice(1,-1);return this.addExtra(s,"raw",r),this.addExtra(s,"rawValue",a),i.value=this.finishNodeAt(s,"DirectiveLiteral",e.end,e.loc.end),this.finishNodeAt(i,"Directive",t.end,t.loc.end)},e.prototype.parseStatement=function(t,e){this.match(C.at)&&this.parseDecorators(!0);var s=this.state.type,i=this.startNode();switch(s){case C._break:case C._continue:return this.parseBreakContinueStatement(i,s.keyword);case C._debugger:return this.parseDebuggerStatement(i);case C._do:return this.parseDoStatement(i);case C._for:return this.parseForStatement(i);case C._function:return t||this.unexpected(),this.parseFunctionStatement(i);case C._class:return t||this.unexpected(),this.parseClass(i,!0);case C._if:return this.parseIfStatement(i);case C._return:return this.parseReturnStatement(i);case C._switch:return this.parseSwitchStatement(i);case C._throw:return this.parseThrowStatement(i);case C._try:return this.parseTryStatement(i);case C._let:case C._const:t||this.unexpected();case C._var:return this.parseVarStatement(i,s);case C._while:return this.parseWhileStatement(i);case C._with:return this.parseWithStatement(i);case C.braceL:return this.parseBlock();case C.semi:return this.parseEmptyStatement(i);case C._export:case C._import:if(this.hasPlugin("dynamicImport")&&this.lookahead().type===C.parenL)break;return this.options.allowImportExportEverywhere||(e||this.raise(this.state.start,"'import' and 'export' may only appear at the top level"),this.inModule||this.raise(this.state.start,"'import' and 'export' may appear only with 'sourceType: module'")),s===C._import?this.parseImport(i):this.parseExport(i);case C.name:if("async"===this.state.value){var r=this.state.clone();if(this.next(),this.match(C._function)&&!this.canInsertSemicolon())return this.expect(C._function),this.parseFunction(i,!0,!1,!0);this.state=r;}}var a=this.state.value,n=this.parseExpression();return s===C.name&&"Identifier"===n.type&&this.eat(C.colon)?this.parseLabeledStatement(i,a,n):this.parseExpressionStatement(i,n)},e.prototype.takeDecorators=function(t){this.state.decorators.length&&(t.decorators=this.state.decorators,this.state.decorators=[]);},e.prototype.parseDecorators=function(t){for(;this.match(C.at);){var e=this.parseDecorator();this.state.decorators.push(e);}t&&this.match(C._export)||this.match(C._class)||this.raise(this.state.start,"Leading decorators must be attached to a class declaration");},e.prototype.parseDecorator=function(){this.hasPlugin("decorators")||this.unexpected();var t=this.startNode();return this.next(),t.expression=this.parseMaybeAssign(),this.finishNode(t,"Decorator")},e.prototype.parseBreakContinueStatement=function(t,e){var s="break"===e;this.next(),this.isLineTerminator()?t.label=null:this.match(C.name)?(t.label=this.parseIdentifier(),this.semicolon()):this.unexpected();var i=void 0;for(i=0;i<this.state.labels.length;++i){var r=this.state.labels[i];if(null==t.label||r.name===t.label.name){if(null!=r.kind&&(s||"loop"===r.kind))break;if(t.label&&s)break}}return i===this.state.labels.length&&this.raise(t.start,"Unsyntactic "+e),this.finishNode(t,s?"BreakStatement":"ContinueStatement")},e.prototype.parseDebuggerStatement=function(t){return this.next(),this.semicolon(),this.finishNode(t,"DebuggerStatement")},e.prototype.parseDoStatement=function(t){return this.next(),this.state.labels.push(H),t.body=this.parseStatement(!1),this.state.labels.pop(),this.expect(C._while),t.test=this.parseParenExpression(),this.eat(C.semi),this.finishNode(t,"DoWhileStatement")},e.prototype.parseForStatement=function(t){this.next(),this.state.labels.push(H);var e=!1;if(this.hasPlugin("asyncGenerators")&&this.state.inAsync&&this.isContextual("await")&&(e=!0,this.next()),this.expect(C.parenL),this.match(C.semi))return e&&this.unexpected(),this.parseFor(t,null);if(this.match(C._var)||this.match(C._let)||this.match(C._const)){var s=this.startNode(),i=this.state.type;return this.next(),this.parseVar(s,!0,i),this.finishNode(s,"VariableDeclaration"),!this.match(C._in)&&!this.isContextual("of")||1!==s.declarations.length||s.declarations[0].init?(e&&this.unexpected(),this.parseFor(t,s)):this.parseForIn(t,s,e)}var r={start:0},a=this.parseExpression(!0,r);if(this.match(C._in)||this.isContextual("of")){var n=this.isContextual("of")?"for-of statement":"for-in statement";return this.toAssignable(a,void 0,n),this.checkLVal(a,void 0,void 0,n),this.parseForIn(t,a,e)}return r.start&&this.unexpected(r.start),e&&this.unexpected(),this.parseFor(t,a)},e.prototype.parseFunctionStatement=function(t){return this.next(),this.parseFunction(t,!0)},e.prototype.parseIfStatement=function(t){return this.next(),t.test=this.parseParenExpression(),t.consequent=this.parseStatement(!1),t.alternate=this.eat(C._else)?this.parseStatement(!1):null,this.finishNode(t,"IfStatement")},e.prototype.parseReturnStatement=function(t){return this.state.inFunction||this.options.allowReturnOutsideFunction||this.raise(this.state.start,"'return' outside of function"),this.next(),this.isLineTerminator()?t.argument=null:(t.argument=this.parseExpression(),this.semicolon()),this.finishNode(t,"ReturnStatement")},e.prototype.parseSwitchStatement=function(t){this.next(),t.discriminant=this.parseParenExpression();var e=t.cases=[];this.expect(C.braceL),this.state.labels.push($);for(var s,i=void 0;!this.match(C.braceR);)if(this.match(C._case)||this.match(C._default)){var r=this.match(C._case);i&&this.finishNode(i,"SwitchCase"),e.push(i=this.startNode()),i.consequent=[],this.next(),r?i.test=this.parseExpression():(s&&this.raise(this.state.lastTokStart,"Multiple default clauses"),s=!0,i.test=null),this.expect(C.colon);}else i?i.consequent.push(this.parseStatement(!0)):this.unexpected();return i&&this.finishNode(i,"SwitchCase"),this.next(),this.state.labels.pop(),this.finishNode(t,"SwitchStatement")},e.prototype.parseThrowStatement=function(t){return this.next(),M.test(this.input.slice(this.state.lastTokEnd,this.state.start))&&this.raise(this.state.lastTokEnd,"Illegal newline after throw"),t.argument=this.parseExpression(),this.semicolon(),this.finishNode(t,"ThrowStatement")},e.prototype.parseTryStatement=function(t){if(this.next(),t.block=this.parseBlock(),t.handler=null,this.match(C._catch)){var e=this.startNode();this.next(),this.expect(C.parenL),e.param=this.parseBindingAtom(),this.checkLVal(e.param,!0,Object.create(null),"catch clause"),this.expect(C.parenR),e.body=this.parseBlock(),t.handler=this.finishNode(e,"CatchClause");}return t.guardedHandlers=Y,t.finalizer=this.eat(C._finally)?this.parseBlock():null,t.handler||t.finalizer||this.raise(t.start,"Missing catch or finally clause"),this.finishNode(t,"TryStatement")},e.prototype.parseVarStatement=function(t,e){return this.next(),this.parseVar(t,!1,e),this.semicolon(),this.finishNode(t,"VariableDeclaration")},e.prototype.parseWhileStatement=function(t){return this.next(),t.test=this.parseParenExpression(),this.state.labels.push(H),t.body=this.parseStatement(!1),this.state.labels.pop(),this.finishNode(t,"WhileStatement")},e.prototype.parseWithStatement=function(t){return this.state.strict&&this.raise(this.state.start,"'with' in strict mode"),this.next(),t.object=this.parseParenExpression(),t.body=this.parseStatement(!1),this.finishNode(t,"WithStatement")},e.prototype.parseEmptyStatement=function(t){return this.next(),this.finishNode(t,"EmptyStatement")},e.prototype.parseLabeledStatement=function(t,e,s){for(var i=this.state.labels,r=Array.isArray(i),a=0,i=r?i:i[Symbol.iterator]();;){var n;if(r){if(a>=i.length)break;n=i[a++];}else{if((a=i.next()).done)break;n=a.value;}n.name===e&&this.raise(s.start,"Label '"+e+"' is already declared");}for(var o=this.state.type.isLoop?"loop":this.match(C._switch)?"switch":null,h=this.state.labels.length-1;h>=0;h--){var p=this.state.labels[h];if(p.statementStart!==t.start)break;p.statementStart=this.state.start,p.kind=o;}return this.state.labels.push({name:e,kind:o,statementStart:this.state.start}),t.body=this.parseStatement(!0),this.state.labels.pop(),t.label=s,this.finishNode(t,"LabeledStatement")},e.prototype.parseExpressionStatement=function(t,e){return t.expression=e,this.semicolon(),this.finishNode(t,"ExpressionStatement")},e.prototype.parseBlock=function(t){var e=this.startNode();return this.expect(C.braceL),this.parseBlockBody(e,t,!1,C.braceR),this.finishNode(e,"BlockStatement")},e.prototype.isValidDirective=function(t){return"ExpressionStatement"===t.type&&"StringLiteral"===t.expression.type&&!t.expression.extra.parenthesized},e.prototype.parseBlockBody=function(t,e,s,i){for(var r=t.body=[],a=t.directives=[],n=!1,o=void 0,h=void 0;!this.eat(i);){n||!this.state.containsOctal||h||(h=this.state.octalPosition);var p=this.parseStatement(!0,s);if(e&&!n&&this.isValidDirective(p)){var c=this.stmtToDirective(p);a.push(c),void 0===o&&"use strict"===c.value.value&&(o=this.state.strict,this.setStrict(!0),h&&this.raise(h,"Octal literal in strict mode"));}else n=!0,r.push(p);}!1===o&&this.setStrict(!1);},e.prototype.parseFor=function(t,e){return t.init=e,this.expect(C.semi),t.test=this.match(C.semi)?null:this.parseExpression(),this.expect(C.semi),t.update=this.match(C.parenR)?null:this.parseExpression(),this.expect(C.parenR),t.body=this.parseStatement(!1),this.state.labels.pop(),this.finishNode(t,"ForStatement")},e.prototype.parseForIn=function(t,e,s){var i=this.match(C._in)?"ForInStatement":"ForOfStatement";return s?this.eatContextual("of"):this.next(),"ForOfStatement"===i&&(t.await=!!s),t.left=e,t.right=this.parseExpression(),this.expect(C.parenR),t.body=this.parseStatement(!1),this.state.labels.pop(),this.finishNode(t,i)},e.prototype.parseVar=function(t,e,s){var i=t.declarations=[];for(t.kind=s.keyword;;){var r=this.startNode();if(this.parseVarHead(r),this.eat(C.eq)?r.init=this.parseMaybeAssign(e):s!==C._const||this.match(C._in)||this.isContextual("of")?"Identifier"===r.id.type||e&&(this.match(C._in)||this.isContextual("of"))?r.init=null:this.raise(this.state.lastTokEnd,"Complex binding patterns require an initialization value"):this.unexpected(),i.push(this.finishNode(r,"VariableDeclarator")),!this.eat(C.comma))break}return t},e.prototype.parseVarHead=function(t){t.id=this.parseBindingAtom(),this.checkLVal(t.id,!0,void 0,"variable declaration");},e.prototype.parseFunction=function(t,e,s,i,r){var a=this.state.inMethod;return this.state.inMethod=!1,this.initFunction(t,i),this.match(C.star)&&(t.async&&!this.hasPlugin("asyncGenerators")?this.unexpected():(t.generator=!0,this.next())),!e||r||this.match(C.name)||this.match(C._yield)||this.unexpected(),(this.match(C.name)||this.match(C._yield))&&(t.id=this.parseBindingIdentifier()),this.parseFunctionParams(t),this.parseFunctionBody(t,s),this.state.inMethod=a,this.finishNode(t,e?"FunctionDeclaration":"FunctionExpression")},e.prototype.parseFunctionParams=function(t){this.expect(C.parenL),t.params=this.parseBindingList(C.parenR);},e.prototype.parseClass=function(t,e,s){return this.next(),this.takeDecorators(t),this.parseClassId(t,e,s),this.parseClassSuper(t),this.parseClassBody(t),this.finishNode(t,e?"ClassDeclaration":"ClassExpression")},e.prototype.isClassProperty=function(){return this.match(C.eq)||this.match(C.semi)||this.match(C.braceR)},e.prototype.isClassMethod=function(){return this.match(C.parenL)},e.prototype.isNonstaticConstructor=function(t){return!(t.computed||t.static||"constructor"!==t.key.name&&"constructor"!==t.key.value)},e.prototype.parseClassBody=function(t){var e=this.state.strict;this.state.strict=!0,this.state.inClass=!0;var s=!1,i=[],r=this.startNode();for(r.body=[],this.expect(C.braceL);!this.eat(C.braceR);)if(this.eat(C.semi))i.length>0&&this.raise(this.state.lastTokEnd,"Decorators must not be followed by a semicolon");else if(this.match(C.at))i.push(this.parseDecorator());else{var a=this.startNode();if(i.length&&(a.decorators=i,i=[]),this.hasPlugin("classPrivateProperties")&&this.match(C.hash))this.next(),this.parsePropertyName(a),r.body.push(this.parsePrivateClassProperty(a));else{if(a.static=!1,this.match(C.name)&&"static"===this.state.value){var n=this.parseIdentifier(!0);if(this.isClassMethod()){a.kind="method",a.computed=!1,a.key=n,this.parseClassMethod(r,a,!1,!1);continue}if(this.isClassProperty()){a.computed=!1,a.key=n,r.body.push(this.parseClassProperty(a));continue}a.static=!0;}if(this.eat(C.star))a.kind="method",this.parsePropertyName(a),this.isNonstaticConstructor(a)&&this.raise(a.key.start,"Constructor can't be a generator"),a.computed||!a.static||"prototype"!==a.key.name&&"prototype"!==a.key.value||this.raise(a.key.start,"Classes may not have static property named prototype"),this.parseClassMethod(r,a,!0,!1);else{var o=this.match(C.name),h=this.parsePropertyName(a);if(a.computed||!a.static||"prototype"!==a.key.name&&"prototype"!==a.key.value||this.raise(a.key.start,"Classes may not have static property named prototype"),this.isClassMethod())this.isNonstaticConstructor(a)?(s?this.raise(h.start,"Duplicate constructor in the same class"):a.decorators&&this.raise(a.start,"You can't attach decorators to a class constructor"),s=!0,a.kind="constructor"):a.kind="method",this.parseClassMethod(r,a,!1,!1);else if(this.isClassProperty())this.isNonstaticConstructor(a)&&this.raise(a.key.start,"Classes may not have a non-static field named 'constructor'"),r.body.push(this.parseClassProperty(a));else if(o&&"async"===h.name&&!this.isLineTerminator()){var p=this.hasPlugin("asyncGenerators")&&this.eat(C.star);a.kind="method",this.parsePropertyName(a),this.isNonstaticConstructor(a)&&this.raise(a.key.start,"Constructor can't be an async function"),this.parseClassMethod(r,a,p,!0);}else!o||"get"!==h.name&&"set"!==h.name||this.isLineTerminator()&&this.match(C.star)?this.isLineTerminator()?(this.isNonstaticConstructor(a)&&this.raise(a.key.start,"Classes may not have a non-static field named 'constructor'"),r.body.push(this.parseClassProperty(a))):this.unexpected():(a.kind=h.name,this.parsePropertyName(a),this.isNonstaticConstructor(a)&&this.raise(a.key.start,"Constructor can't have get/set modifier"),this.parseClassMethod(r,a,!1,!1),this.checkGetterSetterParamCount(a));}}}i.length&&this.raise(this.state.start,"You have trailing decorators with no method"),t.body=this.finishNode(r,"ClassBody"),this.state.inClass=!1,this.state.strict=e;},e.prototype.parsePrivateClassProperty=function(t){return this.state.inClassProperty=!0,this.match(C.eq)?(this.next(),t.value=this.parseMaybeAssign()):t.value=null,this.semicolon(),this.state.inClassProperty=!1,this.finishNode(t,"ClassPrivateProperty")},e.prototype.parseClassProperty=function(t){var e=this.hasPlugin("classProperties"),s="You can only use Class Properties when the 'classProperties' plugin is enabled.";return t.typeAnnotation||e||this.raise(t.start,s),this.state.inClassProperty=!0,this.match(C.eq)?(e||this.raise(this.state.start,s),this.next(),t.value=this.parseMaybeAssign()):t.value=null,this.semicolon(),this.state.inClassProperty=!1,this.finishNode(t,"ClassProperty")},e.prototype.parseClassMethod=function(t,e,s,i){this.parseMethod(e,s,i),t.body.push(this.finishNode(e,"ClassMethod"));},e.prototype.parseClassId=function(t,e,s){this.match(C.name)?t.id=this.parseIdentifier():s||!e?t.id=null:this.unexpected(null,"A class name is required");},e.prototype.parseClassSuper=function(t){t.superClass=this.eat(C._extends)?this.parseExprSubscripts():null;},e.prototype.parseExport=function(t){if(this.eat(C._export),this.match(C.star)){var e=this.startNode();if(this.next(),!this.hasPlugin("exportExtensions")||!this.eatContextual("as"))return this.parseExportFrom(t,!0),this.finishNode(t,"ExportAllDeclaration");e.exported=this.parseIdentifier(!0),t.specifiers=[this.finishNode(e,"ExportNamespaceSpecifier")],this.parseExportSpecifiersMaybe(t),this.parseExportFrom(t,!0);}else if(this.hasPlugin("exportExtensions")&&this.isExportDefaultSpecifier()){var s=this.startNode();s.exported=this.parseIdentifier(!0);var i=[this.finishNode(s,"ExportDefaultSpecifier")];if(t.specifiers=i,this.match(C.comma)&&this.lookahead().type===C.star){this.expect(C.comma);var r=this.startNode();this.expect(C.star),this.expectContextual("as"),r.exported=this.parseIdentifier(),i.push(this.finishNode(r,"ExportNamespaceSpecifier"));}else this.parseExportSpecifiersMaybe(t);this.parseExportFrom(t,!0);}else{if(this.eat(C._default)){var a=this.startNode(),n=!1;return this.eat(C._function)?a=this.parseFunction(a,!0,!1,!1,!0):this.isContextual("async")&&this.lookahead().type===C._function?(this.eatContextual("async"),this.eat(C._function),a=this.parseFunction(a,!0,!1,!0,!0)):this.match(C._class)?a=this.parseClass(a,!0,!0):(n=!0,a=this.parseMaybeAssign()),t.declaration=a,n&&this.semicolon(),this.checkExport(t,!0,!0),this.finishNode(t,"ExportDefaultDeclaration")}this.shouldParseExportDeclaration()?(t.specifiers=[],t.source=null,t.declaration=this.parseExportDeclaration(t)):(t.declaration=null,t.specifiers=this.parseExportSpecifiers(),this.parseExportFrom(t));}return this.checkExport(t,!0),this.finishNode(t,"ExportNamedDeclaration")},e.prototype.parseExportDeclaration=function(t){return this.parseStatement(!0)},e.prototype.isExportDefaultSpecifier=function(){if(this.match(C.name))return"async"!==this.state.value;if(!this.match(C._default))return!1;var t=this.lookahead();return t.type===C.comma||t.type===C.name&&"from"===t.value},e.prototype.parseExportSpecifiersMaybe=function(t){this.eat(C.comma)&&(t.specifiers=t.specifiers.concat(this.parseExportSpecifiers()));},e.prototype.parseExportFrom=function(t,e){this.eatContextual("from")?(t.source=this.match(C.string)?this.parseExprAtom():this.unexpected(),this.checkExport(t)):e?this.unexpected():t.source=null,this.semicolon();},e.prototype.shouldParseExportDeclaration=function(){return"var"===this.state.type.keyword||"const"===this.state.type.keyword||"let"===this.state.type.keyword||"function"===this.state.type.keyword||"class"===this.state.type.keyword||this.isContextual("async")},e.prototype.checkExport=function(t,e,s){if(e)if(s)this.checkDuplicateExports(t,"default");else if(t.specifiers&&t.specifiers.length)for(var i=t.specifiers,r=Array.isArray(i),a=0,i=r?i:i[Symbol.iterator]();;){var n;if(r){if(a>=i.length)break;n=i[a++];}else{if((a=i.next()).done)break;n=a.value;}var o=n;this.checkDuplicateExports(o,o.exported.name);}else if(t.declaration)if("FunctionDeclaration"===t.declaration.type||"ClassDeclaration"===t.declaration.type)this.checkDuplicateExports(t,t.declaration.id.name);else if("VariableDeclaration"===t.declaration.type)for(var h=t.declaration.declarations,p=Array.isArray(h),c=0,h=p?h:h[Symbol.iterator]();;){var l;if(p){if(c>=h.length)break;l=h[c++];}else{if((c=h.next()).done)break;l=c.value;}var u=l;this.checkDeclaration(u.id);}if(this.state.decorators.length){var d=t.declaration&&("ClassDeclaration"===t.declaration.type||"ClassExpression"===t.declaration.type);if(!t.declaration||!d)throw this.raise(t.start,"You can only use decorators on an export when exporting a class");this.takeDecorators(t.declaration);}},e.prototype.checkDeclaration=function(t){if("ObjectPattern"===t.type)for(var e=t.properties,s=Array.isArray(e),i=0,e=s?e:e[Symbol.iterator]();;){var r;if(s){if(i>=e.length)break;r=e[i++];}else{if((i=e.next()).done)break;r=i.value;}var a=r;this.checkDeclaration(a);}else if("ArrayPattern"===t.type)for(var n=t.elements,o=Array.isArray(n),h=0,n=o?n:n[Symbol.iterator]();;){var p;if(o){if(h>=n.length)break;p=n[h++];}else{if((h=n.next()).done)break;p=h.value;}var c=p;c&&this.checkDeclaration(c);}else"ObjectProperty"===t.type?this.checkDeclaration(t.value):"RestElement"===t.type?this.checkDeclaration(t.argument):"Identifier"===t.type&&this.checkDuplicateExports(t,t.name);},e.prototype.checkDuplicateExports=function(t,e){this.state.exportedIdentifiers.indexOf(e)>-1&&this.raiseDuplicateExportError(t,e),this.state.exportedIdentifiers.push(e);},e.prototype.raiseDuplicateExportError=function(t,e){throw this.raise(t.start,"default"===e?"Only one default export allowed per module.":"`"+e+"` has already been exported. Exported identifiers must be unique.")},e.prototype.parseExportSpecifiers=function(){var t=[],e=!0,s=void 0;for(this.expect(C.braceL);!this.eat(C.braceR);){if(e)e=!1;else if(this.expect(C.comma),this.eat(C.braceR))break;var i=this.match(C._default);i&&!s&&(s=!0);var r=this.startNode();r.local=this.parseIdentifier(i),r.exported=this.eatContextual("as")?this.parseIdentifier(!0):r.local.__clone(),t.push(this.finishNode(r,"ExportSpecifier"));}return s&&!this.isContextual("from")&&this.unexpected(),t},e.prototype.parseImport=function(t){return this.eat(C._import),this.match(C.string)?(t.specifiers=[],t.source=this.parseExprAtom()):(t.specifiers=[],this.parseImportSpecifiers(t),this.expectContextual("from"),t.source=this.match(C.string)?this.parseExprAtom():this.unexpected()),this.semicolon(),this.finishNode(t,"ImportDeclaration")},e.prototype.parseImportSpecifiers=function(t){var e=!0;if(this.match(C.name)){var s=this.state.start,i=this.state.startLoc;if(t.specifiers.push(this.parseImportSpecifierDefault(this.parseIdentifier(),s,i)),!this.eat(C.comma))return}if(this.match(C.star)){var r=this.startNode();return this.next(),this.expectContextual("as"),r.local=this.parseIdentifier(),this.checkLVal(r.local,!0,void 0,"import namespace specifier"),void t.specifiers.push(this.finishNode(r,"ImportNamespaceSpecifier"))}for(this.expect(C.braceL);!this.eat(C.braceR);){if(e)e=!1;else if(this.eat(C.colon)&&this.unexpected(null,"ES2015 named imports do not destructure. Use another statement for destructuring after the import."),this.expect(C.comma),this.eat(C.braceR))break;this.parseImportSpecifier(t);}},e.prototype.parseImportSpecifier=function(t){var e=this.startNode();e.imported=this.parseIdentifier(!0),this.eatContextual("as")?e.local=this.parseIdentifier():(this.checkReservedWord(e.imported.name,e.start,!0,!0),e.local=e.imported.__clone()),this.checkLVal(e.local,!0,void 0,"import specifier"),t.specifiers.push(this.finishNode(e,"ImportSpecifier"));},e.prototype.parseImportSpecifierDefault=function(t,e,s){var i=this.startNodeAt(e,s);return i.local=t,this.checkLVal(i.local,!0,void 0,"default import specifier"),this.finishNode(i,"ImportDefaultSpecifier")},e}(function(t){function e(){return g(this,e),P(this,t.apply(this,arguments))}return w(e,t),e.prototype.checkPropClash=function(t,e){if(!t.computed&&!t.kind){var s=t.key;"__proto__"===("Identifier"===s.type?s.name:String(s.value))&&(e.proto&&this.raise(s.start,"Redefinition of __proto__ property"),e.proto=!0);}},e.prototype.getExpression=function(){this.nextToken();var t=this.parseExpression();return this.match(C.eof)||this.unexpected(),t},e.prototype.parseExpression=function(t,e){var s=this.state.start,i=this.state.startLoc,r=this.parseMaybeAssign(t,e);if(this.match(C.comma)){var a=this.startNodeAt(s,i);for(a.expressions=[r];this.eat(C.comma);)a.expressions.push(this.parseMaybeAssign(t,e));return this.toReferencedList(a.expressions),this.finishNode(a,"SequenceExpression")}return r},e.prototype.parseMaybeAssign=function(t,e,s,i){var r=this.state.start,a=this.state.startLoc;if(this.match(C._yield)&&this.state.inGenerator){var n=this.parseYield();return s&&(n=s.call(this,n,r,a)),n}var o=void 0;e?o=!1:(e={start:0},o=!0),(this.match(C.parenL)||this.match(C.name))&&(this.state.potentialArrowAt=this.state.start);var h=this.parseMaybeConditional(t,e,i);if(s&&(h=s.call(this,h,r,a)),this.state.type.isAssign){var p=this.startNodeAt(r,a);if(p.operator=this.state.value,p.left=this.match(C.eq)?this.toAssignable(h,void 0,"assignment expression"):h,e.start=0,this.checkLVal(h,void 0,void 0,"assignment expression"),h.extra&&h.extra.parenthesized){var c=void 0;"ObjectPattern"===h.type?c="`({a}) = 0` use `({a} = 0)`":"ArrayPattern"===h.type&&(c="`([a]) = 0` use `([a] = 0)`"),c&&this.raise(h.start,"You're trying to assign to a parenthesized expression, eg. instead of "+c);}return this.next(),p.right=this.parseMaybeAssign(t),this.finishNode(p,"AssignmentExpression")}return o&&e.start&&this.unexpected(e.start),h},e.prototype.parseMaybeConditional=function(t,e,s){var i=this.state.start,r=this.state.startLoc,a=this.parseExprOps(t,e);return e&&e.start?a:this.parseConditional(a,t,i,r,s)},e.prototype.parseConditional=function(t,e,s,i){if(this.eat(C.question)){var r=this.startNodeAt(s,i);return r.test=t,r.consequent=this.parseMaybeAssign(),this.expect(C.colon),r.alternate=this.parseMaybeAssign(e),this.finishNode(r,"ConditionalExpression")}return t},e.prototype.parseExprOps=function(t,e){var s=this.state.start,i=this.state.startLoc,r=this.parseMaybeUnary(e);return e&&e.start?r:this.parseExprOp(r,s,i,-1,t)},e.prototype.parseExprOp=function(t,e,s,i,r){var a=this.state.type.binop;if(!(null==a||r&&this.match(C._in))&&a>i){var n=this.startNodeAt(e,s);n.left=t,n.operator=this.state.value,"**"!==n.operator||"UnaryExpression"!==t.type||!t.extra||t.extra.parenthesizedArgument||t.extra.parenthesized||this.raise(t.argument.start,"Illegal expression. Wrap left hand side or entire exponentiation in parentheses.");var o=this.state.type;this.next();var h=this.state.start,p=this.state.startLoc;return n.right=this.parseExprOp(this.parseMaybeUnary(),h,p,o.rightAssociative?a-1:a,r),this.finishNode(n,o===C.logicalOR||o===C.logicalAND?"LogicalExpression":"BinaryExpression"),this.parseExprOp(n,e,s,i,r)}return t},e.prototype.parseMaybeUnary=function(t){if(this.state.type.prefix){var e=this.startNode(),s=this.match(C.incDec);e.operator=this.state.value,e.prefix=!0,this.next();var i=this.state.type;return e.argument=this.parseMaybeUnary(),this.addExtra(e,"parenthesizedArgument",!(i!==C.parenL||e.argument.extra&&e.argument.extra.parenthesized)),t&&t.start&&this.unexpected(t.start),s?this.checkLVal(e.argument,void 0,void 0,"prefix operation"):this.state.strict&&"delete"===e.operator&&"Identifier"===e.argument.type&&this.raise(e.start,"Deleting local variable in strict mode"),this.finishNode(e,s?"UpdateExpression":"UnaryExpression")}var r=this.state.start,a=this.state.startLoc,n=this.parseExprSubscripts(t);if(t&&t.start)return n;for(;this.state.type.postfix&&!this.canInsertSemicolon();){var o=this.startNodeAt(r,a);o.operator=this.state.value,o.prefix=!1,o.argument=n,this.checkLVal(n,void 0,void 0,"postfix operation"),this.next(),n=this.finishNode(o,"UpdateExpression");}return n},e.prototype.parseExprSubscripts=function(t){var e=this.state.start,s=this.state.startLoc,i=this.state.potentialArrowAt,r=this.parseExprAtom(t);return"ArrowFunctionExpression"===r.type&&r.start===i?r:t&&t.start?r:this.parseSubscripts(r,e,s)},e.prototype.parseSubscripts=function(t,e,s,i){for(;;){if(!i&&this.eat(C.doubleColon)){var r=this.startNodeAt(e,s);return r.object=t,r.callee=this.parseNoCallExpr(),this.parseSubscripts(this.finishNode(r,"BindExpression"),e,s,i)}if(this.eat(C.dot)){var a=this.startNodeAt(e,s);a.object=t,a.property=this.hasPlugin("classPrivateProperties")?this.parseMaybePrivateName():this.parseIdentifier(!0),a.computed=!1,t=this.finishNode(a,"MemberExpression");}else if(this.eat(C.bracketL)){var n=this.startNodeAt(e,s);n.object=t,n.property=this.parseExpression(),n.computed=!0,this.expect(C.bracketR),t=this.finishNode(n,"MemberExpression");}else if(!i&&this.match(C.parenL)){var o=this.state.potentialArrowAt===t.start&&"Identifier"===t.type&&"async"===t.name&&!this.canInsertSemicolon();this.next();var h=this.startNodeAt(e,s);if(h.callee=t,h.arguments=this.parseCallExpressionArguments(C.parenR,o),"Import"===h.callee.type){1!==h.arguments.length&&this.raise(h.start,"import() requires exactly one argument");var p=h.arguments[0];p&&"SpreadElement"===p.type&&this.raise(p.start,"... is not allowed in import()");}if(t=this.finishNode(h,"CallExpression"),o&&this.shouldParseAsyncArrow())return this.parseAsyncArrowFromCallExpression(this.startNodeAt(e,s),h);this.toReferencedList(h.arguments);}else{if(!this.match(C.backQuote))return t;var c=this.startNodeAt(e,s);c.tag=t,c.quasi=this.parseTemplate(!0),t=this.finishNode(c,"TaggedTemplateExpression");}}throw new Error("Unreachable")},e.prototype.parseCallExpressionArguments=function(t,e){for(var s=[],i=void 0,r=!0;!this.eat(t);){if(r)r=!1;else if(this.expect(C.comma),this.eat(t))break;this.match(C.parenL)&&!i&&(i=this.state.start),s.push(this.parseExprListItem(!1,e?{start:0}:void 0,e?{start:0}:void 0));}return e&&i&&this.shouldParseAsyncArrow()&&this.unexpected(),s},e.prototype.shouldParseAsyncArrow=function(){return this.match(C.arrow)},e.prototype.parseAsyncArrowFromCallExpression=function(t,e){return this.expect(C.arrow),this.parseArrowExpression(t,e.arguments,!0)},e.prototype.parseNoCallExpr=function(){var t=this.state.start,e=this.state.startLoc;return this.parseSubscripts(this.parseExprAtom(),t,e,!0)},e.prototype.parseExprAtom=function(t){var e=this.state.potentialArrowAt===this.state.start,s=void 0;switch(this.state.type){case C._super:return this.state.inMethod||this.state.inClassProperty||this.options.allowSuperOutsideMethod||this.raise(this.state.start,"'super' outside of function or class"),s=this.startNode(),this.next(),this.match(C.parenL)||this.match(C.bracketL)||this.match(C.dot)||this.unexpected(),this.match(C.parenL)&&"constructor"!==this.state.inMethod&&!this.options.allowSuperOutsideMethod&&this.raise(s.start,"super() is only valid inside a class constructor. Make sure the method name is spelled exactly as 'constructor'."),this.finishNode(s,"Super");case C._import:return this.hasPlugin("dynamicImport")||this.unexpected(),s=this.startNode(),this.next(),this.match(C.parenL)||this.unexpected(null,C.parenL),this.finishNode(s,"Import");case C._this:return s=this.startNode(),this.next(),this.finishNode(s,"ThisExpression");case C._yield:this.state.inGenerator&&this.unexpected();case C.name:s=this.startNode();var i="await"===this.state.value&&this.state.inAsync,r=this.shouldAllowYieldIdentifier(),a=this.parseIdentifier(i||r);if("await"===a.name){if(this.state.inAsync||this.inModule)return this.parseAwait(s)}else{if("async"===a.name&&this.match(C._function)&&!this.canInsertSemicolon())return this.next(),this.parseFunction(s,!1,!1,!0);if(e&&"async"===a.name&&this.match(C.name)){var n=[this.parseIdentifier()];return this.expect(C.arrow),this.parseArrowExpression(s,n,!0)}}return e&&!this.canInsertSemicolon()&&this.eat(C.arrow)?this.parseArrowExpression(s,[a]):a;case C._do:if(this.hasPlugin("doExpressions")){var o=this.startNode();this.next();var h=this.state.inFunction,p=this.state.labels;return this.state.labels=[],this.state.inFunction=!1,o.body=this.parseBlock(!1,!0),this.state.inFunction=h,this.state.labels=p,this.finishNode(o,"DoExpression")}case C.regexp:var c=this.state.value;return s=this.parseLiteral(c.value,"RegExpLiteral"),s.pattern=c.pattern,s.flags=c.flags,s;case C.num:return this.parseLiteral(this.state.value,"NumericLiteral");case C.string:return this.parseLiteral(this.state.value,"StringLiteral");case C._null:return s=this.startNode(),this.next(),this.finishNode(s,"NullLiteral");case C._true:case C._false:return s=this.startNode(),s.value=this.match(C._true),this.next(),this.finishNode(s,"BooleanLiteral");case C.parenL:return this.parseParenAndDistinguishExpression(e);case C.bracketL:return s=this.startNode(),this.next(),s.elements=this.parseExprList(C.bracketR,!0,t),this.toReferencedList(s.elements),this.finishNode(s,"ArrayExpression");case C.braceL:return this.parseObj(!1,t);case C._function:return this.parseFunctionExpression();case C.at:this.parseDecorators();case C._class:return s=this.startNode(),this.takeDecorators(s),this.parseClass(s,!1);case C.hash:if(this.hasPlugin("classPrivateProperties"))return this.parseMaybePrivateName();this.unexpected();case C._new:return this.parseNew();case C.backQuote:return this.parseTemplate(!1);case C.doubleColon:s=this.startNode(),this.next(),s.object=null;var l=s.callee=this.parseNoCallExpr();if("MemberExpression"===l.type)return this.finishNode(s,"BindExpression");throw this.raise(l.start,"Binding should be performed on object property.");default:throw this.unexpected()}},e.prototype.parseMaybePrivateName=function(){if(this.eat(C.hash)){var t=this.startNode();return t.name=this.parseIdentifier(!0),this.finishNode(t,"PrivateName")}return this.parseIdentifier(!0)},e.prototype.parseFunctionExpression=function(){var t=this.startNode(),e=this.parseIdentifier(!0);return this.state.inGenerator&&this.eat(C.dot)&&this.hasPlugin("functionSent")?this.parseMetaProperty(t,e,"sent"):this.parseFunction(t,!1)},e.prototype.parseMetaProperty=function(t,e,s){return t.meta=e,t.property=this.parseIdentifier(!0),t.property.name!==s&&this.raise(t.property.start,"The only valid meta property for new is "+e.name+"."+s),this.finishNode(t,"MetaProperty")},e.prototype.parseLiteral=function(t,e,s,i){s=s||this.state.start,i=i||this.state.startLoc;var r=this.startNodeAt(s,i);return this.addExtra(r,"rawValue",t),this.addExtra(r,"raw",this.input.slice(s,this.state.end)),r.value=t,this.next(),this.finishNode(r,e)},e.prototype.parseParenExpression=function(){this.expect(C.parenL);var t=this.parseExpression();return this.expect(C.parenR),t},e.prototype.parseParenAndDistinguishExpression=function(t){var e=this.state.start,s=this.state.startLoc,i=void 0;this.expect(C.parenL);for(var r=this.state.start,a=this.state.startLoc,n=[],o={start:0},h={start:0},p=!0,c=void 0,l=void 0;!this.match(C.parenR);){if(p)p=!1;else if(this.expect(C.comma,h.start||null),this.match(C.parenR)){l=this.state.start;break}if(this.match(C.ellipsis)){var u=this.state.start,d=this.state.startLoc;c=this.state.start,n.push(this.parseParenItem(this.parseRest(),u,d));break}n.push(this.parseMaybeAssign(!1,o,this.parseParenItem,h));}var f=this.state.start,m=this.state.startLoc;this.expect(C.parenR);var y=this.startNodeAt(e,s);if(t&&this.shouldParseArrow()&&(y=this.parseArrow(y))){for(var x=n,v=Array.isArray(x),b=0,x=v?x:x[Symbol.iterator]();;){var g;if(v){if(b>=x.length)break;g=x[b++];}else{if((b=x.next()).done)break;g=b.value;}var w=g;w.extra&&w.extra.parenthesized&&this.unexpected(w.extra.parenStart);}return this.parseArrowExpression(y,n)}return n.length||this.unexpected(this.state.lastTokStart),l&&this.unexpected(l),c&&this.unexpected(c),o.start&&this.unexpected(o.start),h.start&&this.unexpected(h.start),n.length>1?((i=this.startNodeAt(r,a)).expressions=n,this.toReferencedList(i.expressions),this.finishNodeAt(i,"SequenceExpression",f,m)):i=n[0],this.addExtra(i,"parenthesized",!0),this.addExtra(i,"parenStart",e),i},e.prototype.shouldParseArrow=function(){return!this.canInsertSemicolon()},e.prototype.parseArrow=function(t){if(this.eat(C.arrow))return t},e.prototype.parseParenItem=function(t,e,s){return t},e.prototype.parseNew=function(){var t=this.startNode(),e=this.parseIdentifier(!0);if(this.eat(C.dot)){var s=this.parseMetaProperty(t,e,"target");return this.state.inFunction||this.raise(s.property.start,"new.target can only be used in functions"),s}return t.callee=this.parseNoCallExpr(),this.eat(C.parenL)?(t.arguments=this.parseExprList(C.parenR),this.toReferencedList(t.arguments)):t.arguments=[],this.finishNode(t,"NewExpression")},e.prototype.parseTemplateElement=function(t){var e=this.startNode();return null===this.state.value&&(t?this.state.invalidTemplateEscapePosition=null:this.raise(this.state.invalidTemplateEscapePosition,"Invalid escape sequence in template")),e.value={raw:this.input.slice(this.state.start,this.state.end).replace(/\r\n?/g,"\n"),cooked:this.state.value},this.next(),e.tail=this.match(C.backQuote),this.finishNode(e,"TemplateElement")},e.prototype.parseTemplate=function(t){var e=this.startNode();this.next(),e.expressions=[];var s=this.parseTemplateElement(t);for(e.quasis=[s];!s.tail;)this.expect(C.dollarBraceL),e.expressions.push(this.parseExpression()),this.expect(C.braceR),e.quasis.push(s=this.parseTemplateElement(t));return this.next(),this.finishNode(e,"TemplateLiteral")},e.prototype.parseObj=function(t,e){var s=[],i=Object.create(null),r=!0,a=this.startNode();a.properties=[],this.next();for(var n=null;!this.eat(C.braceR);){if(r)r=!1;else if(this.expect(C.comma),this.eat(C.braceR))break;for(;this.match(C.at);)s.push(this.parseDecorator());var o=this.startNode(),h=!1,p=!1,c=void 0,l=void 0;if(s.length&&(o.decorators=s,s=[]),this.hasPlugin("objectRestSpread")&&this.match(C.ellipsis)){if(o=this.parseSpread(t?{start:0}:void 0),o.type=t?"RestElement":"SpreadElement",t&&this.toAssignable(o.argument,!0,"object pattern"),a.properties.push(o),!t)continue;var u=this.state.start;if(null!==n)this.unexpected(n,"Cannot have multiple rest elements when destructuring");else{if(this.eat(C.braceR))break;if(!this.match(C.comma)||this.lookahead().type!==C.braceR){n=u;continue}this.unexpected(u,"A trailing comma is not permitted after the rest element");}}if(o.method=!1,(t||e)&&(c=this.state.start,l=this.state.startLoc),t||(h=this.eat(C.star)),!t&&this.isContextual("async")){h&&this.unexpected();var d=this.parseIdentifier();this.match(C.colon)||this.match(C.parenL)||this.match(C.braceR)||this.match(C.eq)||this.match(C.comma)?(o.key=d,o.computed=!1):(p=!0,this.hasPlugin("asyncGenerators")&&(h=this.eat(C.star)),this.parsePropertyName(o));}else this.parsePropertyName(o);this.parseObjPropValue(o,c,l,h,p,t,e),this.checkPropClash(o,i),o.shorthand&&this.addExtra(o,"shorthand",!0),a.properties.push(o);}return null!==n&&this.unexpected(n,"The rest element has to be the last element when destructuring"),s.length&&this.raise(this.state.start,"You have trailing decorators with no property"),this.finishNode(a,t?"ObjectPattern":"ObjectExpression")},e.prototype.isGetterOrSetterMethod=function(t,e){return!e&&!t.computed&&"Identifier"===t.key.type&&("get"===t.key.name||"set"===t.key.name)&&(this.match(C.string)||this.match(C.num)||this.match(C.bracketL)||this.match(C.name)||!!this.state.type.keyword)},e.prototype.checkGetterSetterParamCount=function(t){var e="get"===t.kind?0:1;if(t.params.length!==e){var s=t.start;"get"===t.kind?this.raise(s,"getter should have no params"):this.raise(s,"setter should have exactly one param");}},e.prototype.parseObjectMethod=function(t,e,s,i){return s||e||this.match(C.parenL)?(i&&this.unexpected(),t.kind="method",t.method=!0,this.parseMethod(t,e,s),this.finishNode(t,"ObjectMethod")):this.isGetterOrSetterMethod(t,i)?((e||s)&&this.unexpected(),t.kind=t.key.name,this.parsePropertyName(t),this.parseMethod(t),this.checkGetterSetterParamCount(t),this.finishNode(t,"ObjectMethod")):void 0},e.prototype.parseObjectProperty=function(t,e,s,i,r){return t.shorthand=!1,this.eat(C.colon)?(t.value=i?this.parseMaybeDefault(this.state.start,this.state.startLoc):this.parseMaybeAssign(!1,r),this.finishNode(t,"ObjectProperty")):t.computed||"Identifier"!==t.key.type?void 0:(this.checkReservedWord(t.key.name,t.key.start,!0,!0),i?t.value=this.parseMaybeDefault(e,s,t.key.__clone()):this.match(C.eq)&&r?(r.start||(r.start=this.state.start),t.value=this.parseMaybeDefault(e,s,t.key.__clone())):t.value=t.key.__clone(),t.shorthand=!0,this.finishNode(t,"ObjectProperty"))},e.prototype.parseObjPropValue=function(t,e,s,i,r,a,n){this.parseObjectMethod(t,i,r,a)||this.parseObjectProperty(t,e,s,a,n)||this.unexpected();},e.prototype.parsePropertyName=function(t){if(this.eat(C.bracketL))t.computed=!0,t.key=this.parseMaybeAssign(),this.expect(C.bracketR);else{t.computed=!1;var e=this.state.inPropertyName;this.state.inPropertyName=!0,t.key=this.match(C.num)||this.match(C.string)?this.parseExprAtom():this.parseIdentifier(!0),this.state.inPropertyName=e;}return t.key},e.prototype.initFunction=function(t,e){t.id=null,t.generator=!1,t.expression=!1,t.async=!!e;},e.prototype.parseMethod=function(t,e,s){var i=this.state.inMethod;return this.state.inMethod=t.kind||!0,this.initFunction(t,s),this.expect(C.parenL),t.params=this.parseBindingList(C.parenR),t.generator=!!e,this.parseFunctionBody(t),this.state.inMethod=i,t},e.prototype.parseArrowExpression=function(t,e,s){return this.initFunction(t,s),t.params=this.toAssignableList(e,!0,"arrow function parameters"),this.parseFunctionBody(t,!0),this.finishNode(t,"ArrowFunctionExpression")},e.prototype.isStrictBody=function(t,e){if(!e&&t.body.directives.length)for(var s=t.body.directives,i=Array.isArray(s),r=0,s=i?s:s[Symbol.iterator]();;){var a;if(i){if(r>=s.length)break;a=s[r++];}else{if((r=s.next()).done)break;a=r.value;}if("use strict"===a.value.value)return!0}return!1},e.prototype.parseFunctionBody=function(t,e){var s=e&&!this.match(C.braceL),i=this.state.inAsync;if(this.state.inAsync=t.async,s)t.body=this.parseMaybeAssign(),t.expression=!0;else{var r=this.state.inFunction,a=this.state.inGenerator,n=this.state.labels;this.state.inFunction=!0,this.state.inGenerator=t.generator,this.state.labels=[],t.body=this.parseBlock(!0),t.expression=!1,this.state.inFunction=r,this.state.inGenerator=a,this.state.labels=n;}this.state.inAsync=i;var o=this.isStrictBody(t,s),h=this.state.strict||e||o;if(o&&t.id&&"Identifier"===t.id.type&&"yield"===t.id.name&&this.raise(t.id.start,"Binding yield in strict mode"),h){var p=Object.create(null),c=this.state.strict;o&&(this.state.strict=!0),t.id&&this.checkLVal(t.id,!0,void 0,"function name");for(var l=t.params,u=Array.isArray(l),d=0,l=u?l:l[Symbol.iterator]();;){var f;if(u){if(d>=l.length)break;f=l[d++];}else{if((d=l.next()).done)break;f=d.value;}var m=f;o&&"Identifier"!==m.type&&this.raise(m.start,"Non-simple parameter in strict mode"),this.checkLVal(m,!0,p,"function parameter list");}this.state.strict=c;}},e.prototype.parseExprList=function(t,e,s){for(var i=[],r=!0;!this.eat(t);){if(r)r=!1;else if(this.expect(C.comma),this.eat(t))break;i.push(this.parseExprListItem(e,s));}return i},e.prototype.parseExprListItem=function(t,e,s){return t&&this.match(C.comma)?null:this.match(C.ellipsis)?this.parseSpread(e):this.parseMaybeAssign(!1,e,this.parseParenItem,s)},e.prototype.parseIdentifier=function(t){var e=this.startNode();return t||this.checkReservedWord(this.state.value,this.state.start,!!this.state.type.keyword,!1),this.match(C.name)?e.name=this.state.value:this.state.type.keyword?e.name=this.state.type.keyword:this.unexpected(),!t&&"await"===e.name&&this.state.inAsync&&this.raise(e.start,"invalid use of await inside of an async function"),e.loc.identifierName=e.name,this.next(),this.finishNode(e,"Identifier")},e.prototype.checkReservedWord=function(t,e,s,i){(this.isReservedWord(t)||s&&this.isKeyword(t))&&this.raise(e,t+" is a reserved word"),this.state.strict&&(S.strict(t)||i&&S.strictBind(t))&&this.raise(e,t+" is a reserved word in strict mode");},e.prototype.parseAwait=function(t){return this.state.inAsync||this.unexpected(),this.match(C.star)&&this.raise(t.start,"await* has been removed from the async functions proposal. Use Promise.all() instead."),t.argument=this.parseMaybeUnary(),this.finishNode(t,"AwaitExpression")},e.prototype.parseYield=function(){var t=this.startNode();return this.next(),this.match(C.semi)||this.canInsertSemicolon()||!this.match(C.star)&&!this.state.type.startsExpr?(t.delegate=!1,t.argument=null):(t.delegate=this.eat(C.star),t.argument=this.parseMaybeAssign()),this.finishNode(t,"YieldExpression")},e}(function(t){function e(){return g(this,e),P(this,t.apply(this,arguments))}return w(e,t),e.prototype.toAssignable=function(t,e,s){if(t)switch(t.type){case"Identifier":case"PrivateName":case"ObjectPattern":case"ArrayPattern":case"AssignmentPattern":break;case"ObjectExpression":t.type="ObjectPattern";for(var i=t.properties,r=Array.isArray(i),a=0,i=r?i:i[Symbol.iterator]();;){var n;if(r){if(a>=i.length)break;n=i[a++];}else{if((a=i.next()).done)break;n=a.value;}var o=n;"ObjectMethod"===o.type?"get"===o.kind||"set"===o.kind?this.raise(o.key.start,"Object pattern can't contain getter or setter"):this.raise(o.key.start,"Object pattern can't contain methods"):this.toAssignable(o,e,"object destructuring pattern");}break;case"ObjectProperty":this.toAssignable(t.value,e,s);break;case"SpreadElement":t.type="RestElement";var h=t.argument;this.toAssignable(h,e,s);break;case"ArrayExpression":t.type="ArrayPattern",this.toAssignableList(t.elements,e,s);break;case"AssignmentExpression":"="===t.operator?(t.type="AssignmentPattern",delete t.operator):this.raise(t.left.end,"Only '=' operator can be used for specifying default value.");break;case"MemberExpression":if(!e)break;default:var p="Invalid left-hand side"+(s?" in "+s:"expression");this.raise(t.start,p);}return t},e.prototype.toAssignableList=function(t,e,s){var i=t.length;if(i){var r=t[i-1];if(r&&"RestElement"===r.type)--i;else if(r&&"SpreadElement"===r.type){r.type="RestElement";var a=r.argument;this.toAssignable(a,e,s),"Identifier"!==a.type&&"MemberExpression"!==a.type&&"ArrayPattern"!==a.type&&this.unexpected(a.start),--i;}}for(var n=0;n<i;n++){var o=t[n];o&&"SpreadElement"===o.type&&this.raise(o.start,"The rest element has to be the last element when destructuring"),o&&this.toAssignable(o,e,s);}return t},e.prototype.toReferencedList=function(t){return t},e.prototype.parseSpread=function(t){var e=this.startNode();return this.next(),e.argument=this.parseMaybeAssign(!1,t),this.finishNode(e,"SpreadElement")},e.prototype.parseRest=function(){var t=this.startNode();return this.next(),t.argument=this.parseBindingAtom(),this.finishNode(t,"RestElement")},e.prototype.shouldAllowYieldIdentifier=function(){return this.match(C._yield)&&!this.state.strict&&!this.state.inGenerator},e.prototype.parseBindingIdentifier=function(){return this.parseIdentifier(this.shouldAllowYieldIdentifier())},e.prototype.parseBindingAtom=function(){switch(this.state.type){case C._yield:case C.name:return this.parseBindingIdentifier();case C.bracketL:var t=this.startNode();return this.next(),t.elements=this.parseBindingList(C.bracketR,!0),this.finishNode(t,"ArrayPattern");case C.braceL:return this.parseObj(!0);default:throw this.unexpected()}},e.prototype.parseBindingList=function(t,e){for(var s=[],i=!0;!this.eat(t);)if(i?i=!1:this.expect(C.comma),e&&this.match(C.comma))s.push(null);else{if(this.eat(t))break;if(this.match(C.ellipsis)){s.push(this.parseAssignableListItemTypes(this.parseRest())),this.expect(t);break}for(var r=[];this.match(C.at);)r.push(this.parseDecorator());var a=this.parseMaybeDefault();r.length&&(a.decorators=r),this.parseAssignableListItemTypes(a),s.push(this.parseMaybeDefault(a.start,a.loc.start,a));}return s},e.prototype.parseAssignableListItemTypes=function(t){return t},e.prototype.parseMaybeDefault=function(t,e,s){if(e=e||this.state.startLoc,t=t||this.state.start,s=s||this.parseBindingAtom(),!this.eat(C.eq))return s;var i=this.startNodeAt(t,e);return i.left=s,i.right=this.parseMaybeAssign(),this.finishNode(i,"AssignmentPattern")},e.prototype.checkLVal=function(t,e,s,i){switch(t.type){case"PrivateName":case"Identifier":if(this.checkReservedWord(t.name,t.start,!1,!0),s){var r="_"+t.name;s[r]?this.raise(t.start,"Argument name clash in strict mode"):s[r]=!0;}break;case"MemberExpression":e&&this.raise(t.start,(e?"Binding":"Assigning to")+" member expression");break;case"ObjectPattern":for(var a=t.properties,n=Array.isArray(a),o=0,a=n?a:a[Symbol.iterator]();;){var h;if(n){if(o>=a.length)break;h=a[o++];}else{if((o=a.next()).done)break;h=o.value;}var p=h;"ObjectProperty"===p.type&&(p=p.value),this.checkLVal(p,e,s,"object destructuring pattern");}break;case"ArrayPattern":for(var c=t.elements,l=Array.isArray(c),u=0,c=l?c:c[Symbol.iterator]();;){var d;if(l){if(u>=c.length)break;d=c[u++];}else{if((u=c.next()).done)break;d=u.value;}var f=d;f&&this.checkLVal(f,e,s,"array destructuring pattern");}break;case"AssignmentPattern":this.checkLVal(t.left,e,s,"assignment pattern");break;case"RestElement":this.checkLVal(t.argument,e,s,"rest element");break;default:var m=(e?"Binding invalid":"Invalid")+" left-hand side"+(i?" in "+i:"expression");this.raise(t.start,m);}},e}(function(t){function e(){return g(this,e),P(this,t.apply(this,arguments))}return w(e,t),e.prototype.startNode=function(){return new Q(this,this.state.start,this.state.startLoc)},e.prototype.startNodeAt=function(t,e){return new Q(this,t,e)},e.prototype.finishNode=function(t,e){return this.finishNodeAt(t,e,this.state.lastTokEnd,this.state.lastTokEndLoc)},e.prototype.finishNodeAt=function(t,e,s,i){return t.type=e,t.end=s,t.loc.end=i,this.options.ranges&&(t.range[1]=s),this.processComment(t),t},e.prototype.resetStartLocationFromNode=function(t,e){t.start=e.start,t.loc.start=e.loc.start,this.options.ranges&&(t.range[0]=e.range[0]);},e}(K))))),et=function(t){return function(t){function e(){return g(this,e),P(this,t.apply(this,arguments))}return w(e,t),e.prototype.estreeParseRegExpLiteral=function(t){var e=t.pattern,s=t.flags,i=null;try{i=new RegExp(e,s);}catch(t){}var r=this.estreeParseLiteral(i);return r.regex={pattern:e,flags:s},r},e.prototype.estreeParseLiteral=function(t){return this.parseLiteral(t,"Literal")},e.prototype.directiveToStmt=function(t){var e=t.value,s=this.startNodeAt(t.start,t.loc.start),i=this.startNodeAt(e.start,e.loc.start);return i.value=e.value,i.raw=e.extra.raw,s.expression=this.finishNodeAt(i,"Literal",e.end,e.loc.end),s.directive=e.extra.raw.slice(1,-1),this.finishNodeAt(s,"ExpressionStatement",t.end,t.loc.end)},e.prototype.checkDeclaration=function(e){u(e)?this.checkDeclaration(e.value):t.prototype.checkDeclaration.call(this,e);},e.prototype.checkGetterSetterParamCount=function(t){var e="get"===t.kind?0:1;if(t.value.params.length!==e){var s=t.start;"get"===t.kind?this.raise(s,"getter should have no params"):this.raise(s,"setter should have exactly one param");}},e.prototype.checkLVal=function(e,s,i){var r,a=this;switch(e.type){case"ObjectPattern":e.properties.forEach(function(t){a.checkLVal("Property"===t.type?t.value:t,s,i,"object destructuring pattern");});break;default:for(var n=arguments.length,o=Array(n>3?n-3:0),h=3;h<n;h++)o[h-3]=arguments[h];(r=t.prototype.checkLVal).call.apply(r,[this,e,s,i].concat(o));}},e.prototype.checkPropClash=function(t,e){if(!t.computed&&u(t)){var s=t.key;"__proto__"===("Identifier"===s.type?s.name:String(s.value))&&(e.proto&&this.raise(s.start,"Redefinition of __proto__ property"),e.proto=!0);}},e.prototype.isStrictBody=function(t,e){if(!e&&t.body.body.length>0)for(var s=t.body.body,i=Array.isArray(s),r=0,s=i?s:s[Symbol.iterator]();;){var a;if(i){if(r>=s.length)break;a=s[r++];}else{if((r=s.next()).done)break;a=r.value;}var n=a;if("ExpressionStatement"!==n.type||"Literal"!==n.expression.type)break;if("use strict"===n.expression.value)return!0}return!1},e.prototype.isValidDirective=function(t){return!("ExpressionStatement"!==t.type||"Literal"!==t.expression.type||"string"!=typeof t.expression.value||t.expression.extra&&t.expression.extra.parenthesized)},e.prototype.parseBlockBody=function(e){for(var s,i=this,r=arguments.length,a=Array(r>1?r-1:0),n=1;n<r;n++)a[n-1]=arguments[n];(s=t.prototype.parseBlockBody).call.apply(s,[this,e].concat(a));var o=e.directives.map(function(t){return i.directiveToStmt(t)});e.body=o.concat(e.body),delete e.directives;},e.prototype.parseClassMethod=function(e){for(var s,i=arguments.length,r=Array(i>1?i-1:0),a=1;a<i;a++)r[a-1]=arguments[a];(s=t.prototype.parseClassMethod).call.apply(s,[this,e].concat(r));var n=e.body;n[n.length-1].type="MethodDefinition";},e.prototype.parseExprAtom=function(){var e;switch(this.state.type){case C.regexp:return this.estreeParseRegExpLiteral(this.state.value);case C.num:case C.string:return this.estreeParseLiteral(this.state.value);case C._null:return this.estreeParseLiteral(null);case C._true:return this.estreeParseLiteral(!0);case C._false:return this.estreeParseLiteral(!1);default:for(var s=arguments.length,i=Array(s),r=0;r<s;r++)i[r]=arguments[r];return(e=t.prototype.parseExprAtom).call.apply(e,[this].concat(i))}},e.prototype.parseLiteral=function(){for(var e,s=arguments.length,i=Array(s),r=0;r<s;r++)i[r]=arguments[r];var a=(e=t.prototype.parseLiteral).call.apply(e,[this].concat(i));return a.raw=a.extra.raw,delete a.extra,a},e.prototype.parseMethod=function(e){var s,i=this.startNode();i.kind=e.kind;for(var r=arguments.length,a=Array(r>1?r-1:0),n=1;n<r;n++)a[n-1]=arguments[n];return i=(s=t.prototype.parseMethod).call.apply(s,[this,i].concat(a)),delete i.kind,e.value=this.finishNode(i,"FunctionExpression"),e},e.prototype.parseObjectMethod=function(){for(var e,s=arguments.length,i=Array(s),r=0;r<s;r++)i[r]=arguments[r];var a=(e=t.prototype.parseObjectMethod).call.apply(e,[this].concat(i));return a&&("method"===a.kind&&(a.kind="init"),a.type="Property"),a},e.prototype.parseObjectProperty=function(){for(var e,s=arguments.length,i=Array(s),r=0;r<s;r++)i[r]=arguments[r];var a=(e=t.prototype.parseObjectProperty).call.apply(e,[this].concat(i));return a&&(a.kind="init",a.type="Property"),a},e.prototype.toAssignable=function(e,s){for(var i,r=arguments.length,a=Array(r>2?r-2:0),n=2;n<r;n++)a[n-2]=arguments[n];if(u(e))return this.toAssignable.apply(this,[e.value,s].concat(a)),e;if("ObjectExpression"===e.type){e.type="ObjectPattern";for(var o=e.properties,h=Array.isArray(o),p=0,o=h?o:o[Symbol.iterator]();;){var c;if(h){if(p>=o.length)break;c=o[p++];}else{if((p=o.next()).done)break;c=p.value;}var l=c;"get"===l.kind||"set"===l.kind?this.raise(l.key.start,"Object pattern can't contain getter or setter"):l.method?this.raise(l.key.start,"Object pattern can't contain methods"):this.toAssignable(l,s,"object destructuring pattern");}return e}return(i=t.prototype.toAssignable).call.apply(i,[this,e,s].concat(a))},e}(t)},st=["any","mixed","empty","bool","boolean","number","string","void","null"],it={const:"declare export var",let:"declare export var",type:"export type",interface:"export interface"},rt=function(t){return function(t){function e(){return g(this,e),P(this,t.apply(this,arguments))}return w(e,t),e.prototype.flowParseTypeInitialiser=function(t){var e=this.state.inType;this.state.inType=!0,this.expect(t||C.colon);var s=this.flowParseType();return this.state.inType=e,s},e.prototype.flowParsePredicate=function(){var t=this.startNode(),e=this.state.startLoc,s=this.state.start;this.expect(C.modulo);var i=this.state.startLoc;return this.expectContextual("checks"),e.line===i.line&&e.column===i.column-1||this.raise(s,"Spaces between ´%´ and ´checks´ are not allowed here."),this.eat(C.parenL)?(t.value=this.parseExpression(),this.expect(C.parenR),this.finishNode(t,"DeclaredPredicate")):this.finishNode(t,"InferredPredicate")},e.prototype.flowParseTypeAndPredicateInitialiser=function(){var t=this.state.inType;this.state.inType=!0,this.expect(C.colon);var e=null,s=null;return this.match(C.modulo)?(this.state.inType=t,s=this.flowParsePredicate()):(e=this.flowParseType(),this.state.inType=t,this.match(C.modulo)&&(s=this.flowParsePredicate())),[e,s]},e.prototype.flowParseDeclareClass=function(t){return this.next(),this.flowParseInterfaceish(t),this.finishNode(t,"DeclareClass")},e.prototype.flowParseDeclareFunction=function(t){this.next();var e=t.id=this.parseIdentifier(),s=this.startNode(),i=this.startNode();this.isRelational("<")?s.typeParameters=this.flowParseTypeParameterDeclaration():s.typeParameters=null,this.expect(C.parenL);var r=this.flowParseFunctionTypeParams();s.params=r.params,s.rest=r.rest,this.expect(C.parenR);var a=this.flowParseTypeAndPredicateInitialiser();return s.returnType=a[0],t.predicate=a[1],i.typeAnnotation=this.finishNode(s,"FunctionTypeAnnotation"),e.typeAnnotation=this.finishNode(i,"TypeAnnotation"),this.finishNode(e,e.type),this.semicolon(),this.finishNode(t,"DeclareFunction")},e.prototype.flowParseDeclare=function(t,e){if(this.match(C._class))return this.flowParseDeclareClass(t);if(this.match(C._function))return this.flowParseDeclareFunction(t);if(this.match(C._var))return this.flowParseDeclareVariable(t);if(this.isContextual("module"))return this.lookahead().type===C.dot?this.flowParseDeclareModuleExports(t):(e&&this.unexpected(null,"`declare module` cannot be used inside another `declare module`"),this.flowParseDeclareModule(t));if(this.isContextual("type"))return this.flowParseDeclareTypeAlias(t);if(this.isContextual("interface"))return this.flowParseDeclareInterface(t);if(this.match(C._export))return this.flowParseDeclareExportDeclaration(t,e);throw this.unexpected()},e.prototype.flowParseDeclareVariable=function(t){return this.next(),t.id=this.flowParseTypeAnnotatableIdentifier(),this.semicolon(