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42:this.skipBlockComment();break;case 47:this.skipLineComment(2);break;default:break t}break;default:if(!m(t))break t;++this.state.pos}}},s.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)},s.readToken_numberSign=function(){if(0!==this.state.pos||!this.readToken_interpreter()){var t=this.state.pos+1,e=this.input.charCodeAt(t);if(e>=48&&e<=57&&this.raise(this.state.pos,"Unexpected digit after hash token"),(this.hasPlugin("classPrivateProperties")||this.hasPlugin("classPrivateMethods"))&&this.state.classLevel>0)return++this.state.pos,void this.finishToken(h.hash);"smart"===this.getPluginOption("pipelineOperator","proposal")?this.finishOp(h.hash,1):this.raise(this.state.pos,"Unexpected character '#'")}},s.readToken_dot=function(){var t=this.input.charCodeAt(this.state.pos+1);if(t>=48&&t<=57)this.readNumber(!0);else{var 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e=42===t?h.star:h.modulo,s=1,i=this.input.charCodeAt(this.state.pos+1),r=this.state.exprAllowed;42===t&&42===i&&(s++,i=this.input.charCodeAt(this.state.pos+2),e=h.exponent),61!==i||r||(s++,e=h.assign),this.finishOp(e,s)},s.readToken_pipe_amp=function(t){var e=this.input.charCodeAt(this.state.pos+1);if(e!==t){if(124===t){if(62===e)return void this.finishOp(h.pipeline,2);if(125===e&&this.hasPlugin("flow"))return void this.finishOp(h.braceBarR,2)}61!==e?this.finishOp(124===t?h.bitwiseOR:h.bitwiseAND,1):this.finishOp(h.assign,2)}else 61===this.input.charCodeAt(this.state.pos+2)?this.finishOp(h.assign,3):this.finishOp(124===t?h.logicalOR:h.logicalAND,2)},s.readToken_caret=function(){61===this.input.charCodeAt(this.state.pos+1)?this.finishOp(h.assign,2):this.finishOp(h.bitwiseXOR,1)},s.readToken_plus_min=function(t){var e=this.input.charCodeAt(this.state.pos+1);if(e===t)return 45===e&&!this.inModule&&62===this.input.charCodeAt(this.state.pos+2)&&c.test(this.input.slice(this.state.lastTokEnd,this.state.pos))?(this.skipLineComment(3),this.skipSpace(),void this.nextToken()):void this.finishOp(h.incDec,2);61===e?this.finishOp(h.assign,2):this.finishOp(h.plusMin,1)},s.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)?void this.finishOp(h.assign,s+1):void this.finishOp(h.bitShift,s)):33!==e||60!==t||this.inModule||45!==this.input.charCodeAt(this.state.pos+2)||45!==this.input.charCodeAt(this.state.pos+3)?(61===e&&(s=2),void this.finishOp(h.relational,s)):(this.skipLineComment(4),this.skipSpace(),void this.nextToken())},s.readToken_eq_excl=function(t){var e=this.input.charCodeAt(this.state.pos+1);if(61!==e)return 61===t&&62===e?(this.state.pos+=2,void this.finishToken(h.arrow)):void this.finishOp(61===t?h.eq:h.bang,1);this.finishOp(h.equality,61===this.input.charCodeAt(this.state.pos+2)?3:2)},s.readToken_question=function(){var t=this.input.charCodeAt(this.state.pos+1),e=this.input.charCodeAt(this.state.pos+2);63!==t||this.state.inType?46!==t||e>=48&&e<=57?(++this.state.pos,this.finishToken(h.question)):(this.state.pos+=2,this.finishToken(h.questionDot)):61===e?this.finishOp(h.assign,3):this.finishOp(h.nullishCoalescing,2)},s.getTokenFromCode=function(t){switch(t){case 35:return void this.readToken_numberSign();case 46:return void this.readToken_dot();case 40:return++this.state.pos,void this.finishToken(h.parenL);case 41:return++this.state.pos,void this.finishToken(h.parenR);case 59:return++this.state.pos,void this.finishToken(h.semi);case 44:return++this.state.pos,void this.finishToken(h.comma);case 91:return++this.state.pos,void this.finishToken(h.bracketL);case 93:return++this.state.pos,void this.finishToken(h.bracketR);case 123:return void(this.hasPlugin("flow")&&124===this.input.charCodeAt(this.state.pos+1)?this.finishOp(h.braceBarL,2):(++this.state.pos,this.finishToken(h.braceL)));case 125:return++this.state.pos,void this.finishToken(h.braceR);case 58:return void(this.hasPlugin("functionBind")&&58===this.input.charCodeAt(this.state.pos+1)?this.finishOp(h.doubleColon,2):(++this.state.pos,this.finishToken(h.colon)));case 63:return void this.readToken_question();case 64:return++this.state.pos,void this.finishToken(h.at);case 96:return++this.state.pos,void this.finishToken(h.backQuote);case 48:var e=this.input.charCodeAt(this.state.pos+1);if(120===e||88===e)return void this.readRadixNumber(16);if(111===e||79===e)return void this.readRadixNumber(8);if(98===e||66===e)return void this.readRadixNumber(2);case 49:case 50:case 51:case 52:case 53:case 54:case 55:case 56:case 57:return void this.readNumber(!1);case 34:case 39:return void this.readString(t);case 47:return void this.readToken_slash();case 37:case 42:return void this.readToken_mult_modulo(t);case 124:case 38:return void this.readToken_pipe_amp(t);case 94:return void this.readToken_caret();case 43:case 45:return void this.readToken_plus_min(t);case 60:case 62:return void this.readToken_lt_gt(t);case 61:case 33:return void this.readToken_eq_excl(t);case 126:return void this.finishOp(h.tilde,1)}this.raise(this.state.pos,"Unexpected character '"+String.fromCodePoint(t)+"'")},s.finishOp=function(t,e){var s=this.input.slice(this.state.pos,this.state.pos+e);this.state.pos+=e,this.finishToken(t,s)},s.readRegexp=function(){for(var t,e,s=this.state.pos;;){this.state.pos>=this.input.length&&this.raise(s,"Unterminated regular expression");var i=this.input.charAt(this.state.pos);if(c.test(i)&&this.raise(s,"Unterminated regular expression"),t)t=!1;else{if("["===i)e=!0;else if("]"===i&&e)e=!1;else if("/"===i&&!e)break;t="\\"===i}++this.state.pos}var r=this.input.slice(s,this.state.pos);++this.state.pos;for(var a="";this.state.pos<this.input.length;){var n=this.input[this.state.pos],o=this.input.codePointAt(this.state.pos);if("gmsiyu".indexOf(n)>-1)a.indexOf(n)>-1&&this.raise(this.state.pos+1,"Duplicate regular expression flag"),++this.state.pos,a+=n;else{if(!F(o)&&92!==o)break;this.raise(this.state.pos+1,"Invalid regular expression flag")}}this.finishToken(h.regexp,{pattern:r,flags:a})},s.readInt=function(t,e){for(var s=this.state.pos,i=16===t?J.hex:J.decBinOct,r=16===t?H.hex:10===t?H.dec:8===t?H.oct:H.bin,a=0,n=0,o=null==e?1/0:e;n<o;++n){var h=this.input.charCodeAt(this.state.pos),p=void 0;if(this.hasPlugin("numericSeparator")){var u=this.input.charCodeAt(this.state.pos-1),c=this.input.charCodeAt(this.state.pos+1);if(95===h){-1===r.indexOf(c)&&this.raise(this.state.pos,"Invalid or unexpected token"),(i.indexOf(u)>-1||i.indexOf(c)>-1||Number.isNaN(c))&&this.raise(this.state.pos,"Invalid or unexpected token"),++this.state.pos;continue}}if((p=h>=97?h-97+10:h>=65?h-65+10:X(h)?h-48:1/0)>=t)break;++this.state.pos,a=a*t+p}return this.state.pos===s||null!=e&&this.state.pos-s!==e?null:a},s.readRadixNumber=function(t){var e=this.state.pos,s=!1;this.state.pos+=2;var i=this.readInt(t);if(null==i&&this.raise(this.state.start+2,"Expected number in radix "+t),this.hasPlugin("bigInt")&&110===this.input.charCodeAt(this.state.pos)&&(++this.state.pos,s=!0),N(this.input.codePointAt(this.state.pos))&&this.raise(this.state.pos,"Identifier directly after number"),s){var r=this.input.slice(e,this.state.pos).replace(/[_n]/g,"");this.finishToken(h.bigint,r)}else this.finishToken(h.num,i)},s.readNumber=function(t){var e=this.state.pos,s=!1,i=!1;t||null!==this.readInt(10)||this.raise(e,"Invalid number");var r=this.state.pos-e>=2&&48===this.input.charCodeAt(e);r&&(this.state.strict&&this.raise(e,"Legacy octal literals are not allowed in strict mode"),/[89]/.test(this.input.slice(e,this.state.pos))&&(r=!1));var a=this.input.charCodeAt(this.state.pos);46!==a||r||(++this.state.pos,this.readInt(10),s=!0,a=this.input.charCodeAt(this.state.pos)),69!==a&&101!==a||r||(43!==(a=this.input.charCodeAt(++this.state.pos))&&45!==a||++this.state.pos,null===this.readInt(10)&&this.raise(e,"Invalid number"),s=!0,a=this.input.charCodeAt(this.state.pos)),this.hasPlugin("bigInt")&&110===a&&((s||r)&&this.raise(e,"Invalid BigIntLiteral"),++this.state.pos,i=!0),N(this.input.codePointAt(this.state.pos))&&this.raise(this.state.pos,"Identifier directly after number");var n=this.input.slice(e,this.state.pos).replace(/[_n]/g,"");if(i)this.finishToken(h.bigint,n);else{var o=r?parseInt(n,8):parseFloat(n);this.finishToken(h.num,o)}},s.readCodePoint=function(t){var e;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},s.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):8232===i||8233===i?(++this.state.pos,++this.state.curLine):d(i)?this.raise(this.state.start,"Unterminated string constant"):++this.state.pos}e+=this.input.slice(s,this.state.pos++),this.finishToken(h.string,e)},s.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(h.template)?36===i?(this.state.pos+=2,void this.finishToken(h.dollarBraceL)):(++this.state.pos,void this.finishToken(h.backQuote)):(t+=this.input.slice(e,this.state.pos),void this.finishToken(h.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(d(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}},s.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:String.fromCodePoint(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)}},s.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},s.readWord1=function(){this.state.containsEsc=!1;for(var t="",e=!0,s=this.state.pos;this.state.pos<this.input.length;){var i=this.input.codePointAt(this.state.pos);if(F(i))this.state.pos+=i<=65535?1:2;else if(this.state.isIterator&&64===i)this.state.pos+=1;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 a=this.readCodePoint(!0);(e?N:F)(a,!0)||this.raise(r,"Invalid Unicode escape"),t+=String.fromCodePoint(a),s=this.state.pos}e=!1}return t+this.input.slice(s,this.state.pos)},s.isIterator=function(t){return"@@iterator"===t||"@@asyncIterator"===t},s.readWord=function(){var t=this.readWord1(),e=h.name;this.isKeyword(t)&&(this.state.containsEsc&&this.raise(this.state.pos,"Escape sequence in keyword "+t),e=p[t]),!this.state.isIterator||this.isIterator(t)&&this.state.inType||this.raise(this.state.pos,"Invalid identifier "+t),this.finishToken(e,t)},s.braceIsBlock=function(t){var e=this.curContext();return e===D.functionExpression||e===D.functionStatement||(t!==h.colon||e!==D.braceStatement&&e!==D.braceExpression?t===h._return||t===h._yield||t===h.name&&this.state.exprAllowed?c.test(this.input.slice(this.state.lastTokEnd,this.state.start)):t===h._else||t===h.semi||t===h.eof||t===h.parenR||t===h.arrow||(t===h.braceL?e===D.braceStatement:t!==h._var&&t!==h._let&&t!==h._const&&(t===h.relational||!this.state.exprAllowed)):!e.isExpr)},s.updateContext=function(t){var e,s=this.state.type;!s.keyword||t!==h.dot&&t!==h.questionDot?(e=s.updateContext)?e.call(this,t):this.state.exprAllowed=s.beforeExpr:this.state.exprAllowed=!1},e}(W)),Q=["leadingComments","trailingComments","innerComments"],Y=function(){function t(t,e,s){this.type="",this.start=e,this.end=0,this.loc=new V(s),t&&t.options.ranges&&(this.range=[e,0]),t&&t.filename&&(this.loc.filename=t.filename)}return t.prototype.__clone=function(){var e=this,s=new t;return Object.keys(this).forEach(function(t){Q.indexOf(t)<0&&(s[t]=e[t])}),s},t}(),$=[],Z={kind:"loop"},tt={kind:"switch"},et=function(t){function e(e,s){var i;return e=function(t){var e={};for(var s in q)e[s]=t&&null!=t[s]?t[s]:q[s];return e}(e),(i=t.call(this,e,s)||this).options=e,i.inModule="module"===i.options.sourceType,i.input=s,i.plugins=function(t){for(var e=Object.create(null),s=0;s<t.length;s++){var i=t[s],r=Array.isArray(i)?i:[i,{}],a=r[0],n=r[1],o=void 0===n?{}:n;e[a]||(e[a]=o||{})}return e}(i.options.plugins),i.filename=e.sourceFilename,i}return i(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 t.apply(this,arguments)||this}i(e,t);var s=e.prototype;return s.parseTopLevel=function(t,e){return e.sourceType=this.options.sourceType,e.interpreter=this.parseInterpreterDirective(),this.parseBlockBody(e,!0,!0,h.eof),t.program=this.finishNode(e,"Program"),t.comments=this.state.comments,this.options.tokens&&(t.tokens=this.state.tokens),this.finishNode(t,"File")},s.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)},s.parseInterpreterDirective=function(){if(!this.match(h.interpreterDirective))return null;var t=this.startNode();return t.value=this.state.value,this.next(),this.finishNode(t,"InterpreterDirective")},s.parseStatement=function(t,e){return this.match(h.at)&&this.parseDecorators(!0),this.parseStatementContent(t,e)},s.parseStatementContent=function(t,e){var s=this.state.type,i=this.startNode();switch(s){case h._break:case h._continue:return this.parseBreakContinueStatement(i,s.keyword);case h._debugger:return this.parseDebuggerStatement(i);case h._do:return this.parseDoStatement(i);case h._for:return this.parseForStatement(i);case h._function:if(this.lookahead().type===h.dot)break;return t||this.unexpected(),this.parseFunctionStatement(i);case h._class:return t||this.unexpected(),this.parseClass(i,!0);case h._if:return this.parseIfStatement(i);case h._return:return this.parseReturnStatement(i);case h._switch:return this.parseSwitchStatement(i);case h._throw:return this.parseThrowStatement(i);case h._try:return this.parseTryStatement(i);case h._let:case h._const:t||this.unexpected();case h._var:return this.parseVarStatement(i,s);case h._while:return this.parseWhileStatement(i);case h._with:return this.parseWithStatement(i);case h.braceL:return this.parseBlock();case h.semi:return this.parseEmptyStatement(i);case h._export:case h._import:var r,a=this.lookahead();if(a.type===h.parenL||a.type===h.dot)break;return this.options.allowImportExportEverywhere||e||this.raise(this.state.start,"'import' and 'export' may only appear at the top level"),this.next(),s==h._import?"ImportDeclaration"!==(r=this.parseImport(i)).type||r.importKind&&"value"!==r.importKind||(this.sawUnambiguousESM=!0):("ExportNamedDeclaration"!==(r=this.parseExport(i)).type||r.exportKind&&"value"!==r.exportKind)&&("ExportAllDeclaration"!==r.type||r.exportKind&&"value"!==r.exportKind)&&"ExportDefaultDeclaration"!==r.type||(this.sawUnambiguousESM=!0),this.assertModuleNodeAllowed(i),r;case h.name:if(this.isContextual("async")){var n=this.state.clone();if(this.next(),this.match(h._function)&&!this.canInsertSemicolon())return this.expect(h._function),this.parseFunction(i,!0,!1,!0);this.state=n}}var o=this.state.value,p=this.parseExpression();return s===h.name&&"Identifier"===p.type&&this.eat(h.colon)?this.parseLabeledStatement(i,o,p):this.parseExpressionStatement(i,p)},s.assertModuleNodeAllowed=function(t){this.options.allowImportExportEverywhere||this.inModule||this.raise(t.start,"'import' and 'export' may appear only with 'sourceType: \"module\"'",{code:"BABEL_PARSER_SOURCETYPE_MODULE_REQUIRED"})},s.takeDecorators=function(t){var e=this.state.decoratorStack[this.state.decoratorStack.length-1];e.length&&(t.decorators=e,this.resetStartLocationFromNode(t,e[0]),this.state.decoratorStack[this.state.decoratorStack.length-1]=[])},s.canHaveLeadingDecorator=function(){return this.match(h._class)},s.parseDecorators=function(t){for(var e=this.state.decoratorStack[this.state.decoratorStack.length-1];this.match(h.at);){var s=this.parseDecorator();e.push(s)}this.match(h._export)?(t||this.unexpected(),this.hasPlugin("decorators")&&!this.getPluginOption("decorators","decoratorsBeforeExport")&&this.raise(this.state.start,"Using the export keyword between a decorator and a class is not allowed. Please use `export @dec class` instead.")):this.canHaveLeadingDecorator()||this.raise(this.state.start,"Leading decorators must be attached to a class declaration")},s.parseDecorator=function(){this.expectOnePlugin(["decorators-legacy","decorators"]);var t=this.startNode();if(this.next(),this.hasPlugin("decorators")){this.state.decoratorStack.push([]);var e,s=this.state.start,i=this.state.startLoc;if(this.eat(h.parenL))e=this.parseExpression(),this.expect(h.parenR);else for(e=this.parseIdentifier(!1);this.eat(h.dot);){var r=this.startNodeAt(s,i);r.object=e,r.property=this.parseIdentifier(!0),r.computed=!1,e=this.finishNode(r,"MemberExpression")}t.expression=this.parseMaybeDecoratorArguments(e),this.state.decoratorStack.pop()}else t.expression=this.parseMaybeAssign();return this.finishNode(t,"Decorator")},s.parseMaybeDecoratorArguments=function(t){if(this.eat(h.parenL)){var e=this.startNodeAtNode(t);return e.callee=t,e.arguments=this.parseCallExpressionArguments(h.parenR,!1),this.toReferencedList(e.arguments),this.finishNode(e,"CallExpression")}return t},s.parseBreakContinueStatement=function(t,e){var s,i="break"===e;for(this.next(),this.isLineTerminator()?t.label=null:this.match(h.name)?(t.label=this.parseIdentifier(),this.semicolon()):this.unexpected(),s=0;s<this.state.labels.length;++s){var r=this.state.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.state.labels.length&&this.raise(t.start,"Unsyntactic "+e),this.finishNode(t,i?"BreakStatement":"ContinueStatement")},s.parseDebuggerStatement=function(t){return this.next(),this.semicolon(),this.finishNode(t,"DebuggerStatement")},s.parseDoStatement=function(t){var e=this;return this.next(),this.state.labels.push(Z),t.body=this.withTopicForbiddingContext(function(){return e.parseStatement(!1)}),this.state.labels.pop(),this.expect(h._while),t.test=this.parseParenExpression(),this.eat(h.semi),this.finishNode(t,"DoWhileStatement")},s.parseForStatement=function(t){this.next(),this.state.labels.push(Z);var e=!1;if(this.state.inAsync&&this.isContextual("await")&&(e=!0,this.next()),this.expect(h.parenL),this.match(h.semi))return e&&this.unexpected(),this.parseFor(t,null);if(this.match(h._var)||this.match(h._let)||this.match(h._const)){var s=this.startNode(),i=this.state.type;if(this.next(),this.parseVar(s,!0,i),this.finishNode(s,"VariableDeclaration"),(this.match(h._in)||this.isContextual("of"))&&1===s.declarations.length){var r=s.declarations[0],a=i===h._var&&r.init&&"ObjectPattern"!=r.id.type&&"ArrayPattern"!=r.id.type&&!this.isContextual("of");if(this.state.strict&&a)this.raise(this.state.start,"for-in initializer in strict mode");else if(a||!r.init)return this.parseForIn(t,s,e)}return e&&this.unexpected(),this.parseFor(t,s)}var n={start:0},o=this.parseExpression(!0,n);if(this.match(h._in)||this.isContextual("of")){var p=this.isContextual("of")?"for-of statement":"for-in statement";return this.toAssignable(o,void 0,p),this.checkLVal(o,void 0,void 0,p),this.parseForIn(t,o,e)}return n.start&&this.unexpected(n.start),e&&this.unexpected(),this.parseFor(t,o)},s.parseFunctionStatement=function(t){return this.next(),this.parseFunction(t,!0)},s.parseIfStatement=function(t){return this.next(),t.test=this.parseParenExpression(),t.consequent=this.parseStatement(!1),t.alternate=this.eat(h._else)?this.parseStatement(!1):null,this.finishNode(t,"IfStatement")},s.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")},s.parseSwitchStatement=function(t){this.next(),t.discriminant=this.parseParenExpression();var e,s,i=t.cases=[];for(this.expect(h.braceL),this.state.labels.push(tt);!this.match(h.braceR);)if(this.match(h._case)||this.match(h._default)){var r=this.match(h._case);e&&this.finishNode(e,"SwitchCase"),i.push(e=this.startNode()),e.consequent=[],this.next(),r?e.test=this.parseExpression():(s&&this.raise(this.state.lastTokStart,"Multiple default clauses"),s=!0,e.test=null),this.expect(h.colon)}else e?e.consequent.push(this.parseStatement(!0)):this.unexpected();return e&&this.finishNode(e,"SwitchCase"),this.next(),this.state.labels.pop(),this.finishNode(t,"SwitchStatement")},s.parseThrowStatement=function(t){return this.next(),c.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")},s.parseTryStatement=function(t){var e=this;if(this.next(),t.block=this.parseBlock(),t.handler=null,this.match(h._catch)){var s=this.startNode();if(this.next(),this.match(h.parenL)){this.expect(h.parenL),s.param=this.parseBindingAtom();var i=Object.create(null);this.checkLVal(s.param,!0,i,"catch clause"),this.expect(h.parenR)}else s.param=null;s.body=this.withTopicForbiddingContext(function(){return e.parseBlock(!1)}),t.handler=this.finishNode(s,"CatchClause")}return t.guardedHandlers=$,t.finalizer=this.eat(h._finally)?this.parseBlock():null,t.handler||t.finalizer||this.raise(t.start,"Missing catch or finally clause"),this.finishNode(t,"TryStatement")},s.parseVarStatement=function(t,e){return this.next(),this.parseVar(t,!1,e),this.semicolon(),this.finishNode(t,"VariableDeclaration")},s.parseWhileStatement=function(t){var e=this;return this.next(),t.test=this.parseParenExpression(),this.state.labels.push(Z),t.body=this.withTopicForbiddingContext(function(){return e.parseStatement(!1)}),this.state.labels.pop(),this.finishNode(t,"WhileStatement")},s.parseWithStatement=function(t){var e=this;return this.state.strict&&this.raise(this.state.start,"'with' in strict mode"),this.next(),t.object=this.parseParenExpression(),t.body=this.withTopicForbiddingContext(function(){return e.parseStatement(!1)}),this.finishNode(t,"WithStatement")},s.parseEmptyStatement=function(t){return this.next(),this.finishNode(t,"EmptyStatement")},s.parseLabeledStatement=function(t,e,s){for(var i=0,r=this.state.labels;i<r.length;i++){r[i].name===e&&this.raise(s.start,"Label '"+e+"' is already declared")}for(var a=this.state.type.isLoop?"loop":this.match(h._switch)?"switch":null,n=this.state.labels.length-1;n>=0;n--){var o=this.state.labels[n];if(o.statementStart!==t.start)break;o.statementStart=this.state.start,o.kind=a}return this.state.labels.push({name:e,kind:a,statementStart:this.state.start}),t.body=this.parseStatement(!0),("ClassDeclaration"==t.body.type||"VariableDeclaration"==t.body.type&&"var"!==t.body.kind||"FunctionDeclaration"==t.body.type&&(this.state.strict||t.body.generator||t.body.async))&&this.raise(t.body.start,"Invalid labeled declaration"),this.state.labels.pop(),t.label=s,this.finishNode(t,"LabeledStatement")},s.parseExpressionStatement=function(t,e){return t.expression=e,this.semicolon(),this.finishNode(t,"ExpressionStatement")},s.parseBlock=function(t){var e=this.startNode();return this.expect(h.braceL),this.parseBlockBody(e,t,!1,h.braceR),this.finishNode(e,"BlockStatement")},s.isValidDirective=function(t){return"ExpressionStatement"===t.type&&"StringLiteral"===t.expression.type&&!t.expression.extra.parenthesized},s.parseBlockBody=function(t,e,s,i){var r=t.body=[],a=t.directives=[];this.parseBlockOrModuleBlockBody(r,e?a:void 0,s,i)},s.parseBlockOrModuleBlockBody=function(t,e,s,i){for(var r,a,n=!1;!this.eat(i);){n||!this.state.containsOctal||a||(a=this.state.octalPosition);var o=this.parseStatement(!0,s);if(e&&!n&&this.isValidDirective(o)){var h=this.stmtToDirective(o);e.push(h),void 0===r&&"use strict"===h.value.value&&(r=this.state.strict,this.setStrict(!0),a&&this.raise(a,"Octal literal in strict mode"))}else n=!0,t.push(o)}!1===r&&this.setStrict(!1)},s.parseFor=function(t,e){var s=this;return t.init=e,this.expect(h.semi),t.test=this.match(h.semi)?null:this.parseExpression(),this.expect(h.semi),t.update=this.match(h.parenR)?null:this.parseExpression(),this.expect(h.parenR),t.body=this.withTopicForbiddingContext(function(){return s.parseStatement(!1)}),this.state.labels.pop(),this.finishNode(t,"ForStatement")},s.parseForIn=function(t,e,s){var i=this,r=this.match(h._in)?"ForInStatement":"ForOfStatement";return s?this.eatContextual("of"):this.next(),"ForOfStatement"===r&&(t.await=!!s),t.left=e,t.right=this.parseExpression(),this.expect(h.parenR),t.body=this.withTopicForbiddingContext(function(){return i.parseStatement(!1)}),this.state.labels.pop(),this.finishNode(t,r)},s.parseVar=function(t,e,s){var i=t.declarations=[];for(t.kind=s.keyword;;){var r=this.startNode();if(this.parseVarHead(r),this.eat(h.eq)?r.init=this.parseMaybeAssign(e):(s!==h._const||this.match(h._in)||this.isContextual("of")?"Identifier"===r.id.type||e&&(this.match(h._in)||this.isContextual("of"))||this.raise(this.state.lastTokEnd,"Complex binding patterns require an initialization value"):this.hasPlugin("typescript")||this.unexpected(),r.init=null),i.push(this.finishNode(r,"VariableDeclarator")),!this.eat(h.comma))break}return t},s.parseVarHead=function(t){t.id=this.parseBindingAtom(),this.checkLVal(t.id,!0,void 0,"variable declaration")},s.parseFunction=function(t,e,s,i,r){var a=this,n=this.state.inFunction,o=this.state.inMethod,p=this.state.inAsync,u=this.state.inGenerator,c=this.state.inClassProperty;return this.state.inFunction=!0,this.state.inMethod=!1,this.state.inClassProperty=!1,this.initFunction(t,i),this.match(h.star)&&(t.generator=!0,this.next()),!e||r||this.match(h.name)||this.match(h._yield)||this.unexpected(),e||(this.state.inAsync=i,this.state.inGenerator=t.generator),(this.match(h.name)||this.match(h._yield))&&(t.id=this.parseBindingIdentifier()),e&&(this.state.inAsync=i,this.state.inGenerator=t.generator),this.parseFunctionParams(t),this.withTopicForbiddingContext(function(){a.parseFunctionBodyAndFinish(t,e?"FunctionDeclaration":"FunctionExpression",s)}),this.state.inFunction=n,this.state.inMethod=o,this.state.inAsync=p,this.state.inGenerator=u,this.state.inClassProperty=c,t},s.parseFunctionParams=function(t,e){var s=this.state.inParameters;this.state.inParameters=!0,this.expect(h.parenL),t.params=this.parseBindingList(h.parenR,!1,e),this.state.inParameters=s},s.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")},s.isClassProperty=function(){return this.match(h.eq)||this.match(h.semi)||this.match(h.braceR)},s.isClassMethod=function(){return this.match(h.parenL)},s.isNonstaticConstructor=function(t){return!(t.computed||t.static||"constructor"!==t.key.name&&"constructor"!==t.key.value)},s.parseClassBody=function(t){var e=this,s=this.state.strict;this.state.strict=!0,this.state.classLevel++;var i={hadConstructor:!1},r=[],a=this.startNode();a.body=[],this.expect(h.braceL),this.withTopicForbiddingContext(function(){for(;!e.eat(h.braceR);)if(e.eat(h.semi))r.length>0&&e.raise(e.state.lastTokEnd,"Decorators must not be followed by a semicolon");else if(e.match(h.at))r.push(e.parseDecorator());else{var t=e.startNode();r.length&&(t.decorators=r,e.resetStartLocationFromNode(t,r[0]),r=[]),e.parseClassMember(a,t,i),"constructor"===t.kind&&t.decorators&&t.decorators.length>0&&e.raise(t.start,"Decorators can't be used with a constructor. Did you mean '@dec class { ... }'?")}}),r.length&&this.raise(this.state.start,"You have trailing decorators with no method"),t.body=this.finishNode(a,"ClassBody"),this.state.classLevel--,this.state.strict=s},s.parseClassMember=function(t,e,s){var i=!1,r=this.state.containsEsc;if(this.match(h.name)&&"static"===this.state.value){var a=this.parseIdentifier(!0);if(this.isClassMethod()){var n=e;return n.kind="method",n.computed=!1,n.key=a,n.static=!1,void this.pushClassMethod(t,n,!1,!1,!1)}if(this.isClassProperty()){var o=e;return o.computed=!1,o.key=a,o.static=!1,void t.body.push(this.parseClassProperty(o))}if(r)throw this.unexpected();i=!0}this.parseClassMemberWithIsStatic(t,e,s,i)},s.parseClassMemberWithIsStatic=function(t,e,s,i){var r=e,a=e,n=e,o=e,p=r,u=r;if(e.static=i,this.eat(h.star))return p.kind="method",this.parseClassPropertyName(p),"PrivateName"===p.key.type?void this.pushClassPrivateMethod(t,a,!0,!1):(this.isNonstaticConstructor(r)&&this.raise(r.key.start,"Constructor can't be a generator"),void this.pushClassMethod(t,r,!0,!1,!1));var c=this.parseClassPropertyName(e),l="PrivateName"===c.type,d="Identifier"===c.type;if(this.parsePostMemberNameModifiers(u),this.isClassMethod()){if(p.kind="method",l)return void this.pushClassPrivateMethod(t,a,!1,!1);var f=this.isNonstaticConstructor(r);f&&(r.kind="constructor",r.decorators&&this.raise(r.start,"You can't attach decorators to a class constructor"),s.hadConstructor&&!this.hasPlugin("typescript")&&this.raise(c.start,"Duplicate constructor in the same class"),s.hadConstructor=!0),this.pushClassMethod(t,r,!1,!1,f)}else if(this.isClassProperty())l?this.pushClassPrivateProperty(t,o):this.pushClassProperty(t,n);else if(d&&"async"===c.name&&!this.isLineTerminator()){var m=this.eat(h.star);p.kind="method",this.parseClassPropertyName(p),"PrivateName"===p.key.type?this.pushClassPrivateMethod(t,a,m,!0):(this.isNonstaticConstructor(r)&&this.raise(r.key.start,"Constructor can't be an async function"),this.pushClassMethod(t,r,m,!0,!1))}else!d||"get"!==c.name&&"set"!==c.name||this.isLineTerminator()&&this.match(h.star)?this.isLineTerminator()?l?this.pushClassPrivateProperty(t,o):this.pushClassProperty(t,n):this.unexpected():(p.kind=c.name,this.parseClassPropertyName(r),"PrivateName"===p.key.type?this.pushClassPrivateMethod(t,a,!1,!1):(this.isNonstaticConstructor(r)&&this.raise(r.key.start,"Constructor can't have get/set modifier"),this.pushClassMethod(t,r,!1,!1,!1)),this.checkGetterSetterParams(r))},s.parseClassPropertyName=function(t){var e=this.parsePropertyName(t);return t.computed||!t.static||"prototype"!==e.name&&"prototype"!==e.value||this.raise(e.start,"Classes may not have static property named prototype"),"PrivateName"===e.type&&"constructor"===e.id.name&&this.raise(e.start,"Classes may not have a private field named '#constructor'"),e},s.pushClassProperty=function(t,e){this.isNonstaticConstructor(e)&&this.raise(e.key.start,"Classes may not have a non-static field named 'constructor'"),t.body.push(this.parseClassProperty(e))},s.pushClassPrivateProperty=function(t,e){this.expectPlugin("classPrivateProperties",e.key.start),t.body.push(this.parseClassPrivateProperty(e))},s.pushClassMethod=function(t,e,s,i,r){t.body.push(this.parseMethod(e,s,i,r,"ClassMethod"))},s.pushClassPrivateMethod=function(t,e,s,i){this.expectPlugin("classPrivateMethods",e.key.start),t.body.push(this.parseMethod(e,s,i,!1,"ClassPrivateMethod"))},s.parsePostMemberNameModifiers=function(t){},s.parseAccessModifier=function(){},s.parseClassPrivateProperty=function(t){var e=this.state.inMethod;return this.state.inMethod=!1,this.state.inClassProperty=!0,t.value=this.eat(h.eq)?this.parseMaybeAssign():null,this.semicolon(),this.state.inClassProperty=!1,this.state.inMethod=e,this.finishNode(t,"ClassPrivateProperty")},s.parseClassProperty=function(t){t.typeAnnotation||this.expectPlugin("classProperties");var e=this.state.inMethod;return this.state.inMethod=!1,this.state.inClassProperty=!0,this.match(h.eq)?(this.expectPlugin("classProperties"),this.next(),t.value=this.parseMaybeAssign()):t.value=null,this.semicolon(),this.state.inClassProperty=!1,this.state.inMethod=e,this.finishNode(t,"ClassProperty")},s.parseClassId=function(t,e,s){this.match(h.name)?t.id=this.parseIdentifier():s||!e?t.id=null:this.unexpected(null,"A class name is required")},s.parseClassSuper=function(t){t.superClass=this.eat(h._extends)?this.parseExprSubscripts():null},s.parseExport=function(t){if(this.shouldParseExportStar()){if(this.parseExportStar(t),"ExportAllDeclaration"===t.type)return t}else if(this.isExportDefaultSpecifier()){this.expectPlugin("exportDefaultFrom");var e=this.startNode();e.exported=this.parseIdentifier(!0);var s=[this.finishNode(e,"ExportDefaultSpecifier")];if(t.specifiers=s,this.match(h.comma)&&this.lookahead().type===h.star){this.expect(h.comma);var i=this.startNode();this.expect(h.star),this.expectContextual("as"),i.exported=this.parseIdentifier(),s.push(this.finishNode(i,"ExportNamespaceSpecifier"))}else this.parseExportSpecifiersMaybe(t);this.parseExportFrom(t,!0)}else{if(this.eat(h._default))return t.declaration=this.parseExportDefaultExpression(),this.checkExport(t,!0,!0),this.finishNode(t,"ExportDefaultDeclaration");if(this.shouldParseExportDeclaration()){if(this.isContextual("async")){var r=this.lookahead();r.type!==h._function&&this.unexpected(r.start,'Unexpected token, expected "function"')}t.specifiers=[],t.source=null,t.declaration=this.parseExportDeclaration(t)}else t.declaration=null,t.specifiers=this.parseExportSpecifiers(),this.parseExportFrom(t)}return this.checkExport(t,!0),this.finishNode(t,"ExportNamedDeclaration")},s.isAsyncFunction=function(){if(!this.isContextual("async"))return!1;var t=this.state,e=t.input,s=t.pos;f.lastIndex=s;var i=f.exec(e);if(!i||!i.length)return!1;var r=s+i[0].length;return!(c.test(e.slice(s,r))||"function"!==e.slice(r,r+8)||r+8!==e.length&&F(e.charAt(r+8)))},s.parseExportDefaultExpression=function(){var t=this.startNode(),e=this.isAsyncFunction();if(this.eat(h._function)||e)return e&&(this.eatContextual("async"),this.expect(h._function)),this.parseFunction(t,!0,!1,e,!0);if(this.match(h._class))return this.parseClass(t,!0,!0);if(this.match(h.at))return this.hasPlugin("decorators")&&this.getPluginOption("decorators","decoratorsBeforeExport")&&this.unexpected(this.state.start,"Decorators must be placed *before* the 'export' keyword. You can set the 'decoratorsBeforeExport' option to false to use the 'export @decorator class {}' syntax"),this.parseDecorators(!1),this.parseClass(t,!0,!0);if(this.match(h._let)||this.match(h._const)||this.match(h._var))return this.raise(this.state.start,"Only expressions, functions or classes are allowed as the `default` export.");var s=this.parseMaybeAssign();return this.semicolon(),s},s.parseExportDeclaration=function(t){return this.parseStatement(!0)},s.isExportDefaultSpecifier=function(){if(this.match(h.name))return"async"!==this.state.value;if(!this.match(h._default))return!1;var t=this.lookahead();return t.type===h.comma||t.type===h.name&&"from"===t.value},s.parseExportSpecifiersMaybe=function(t){this.eat(h.comma)&&(t.specifiers=t.specifiers.concat(this.parseExportSpecifiers()))},s.parseExportFrom=function(t,e){this.eatContextual("from")?(t.source=this.match(h.string)?this.parseExprAtom():this.unexpected(),this.checkExport(t)):e?this.unexpected():t.source=null,this.semicolon()},s.shouldParseExportStar=function(){return this.match(h.star)},s.parseExportStar=function(t){this.expect(h.star),this.isContextual("as")?this.parseExportNamespace(t):(this.parseExportFrom(t,!0),this.finishNode(t,"ExportAllDeclaration"))},s.parseExportNamespace=function(t){this.expectPlugin("exportNamespaceFrom");var e=this.startNodeAt(this.state.lastTokStart,this.state.lastTokStartLoc);this.next(),e.exported=this.parseIdentifier(!0),t.specifiers=[this.finishNode(e,"ExportNamespaceSpecifier")],this.parseExportSpecifiersMaybe(t),this.parseExportFrom(t,!0)},s.shouldParseExportDeclaration=function(){if(this.match(h.at)&&(this.expectOnePlugin(["decorators","decorators-legacy"]),this.hasPlugin("decorators"))){if(!this.getPluginOption("decorators","decoratorsBeforeExport"))return!0;this.unexpected(this.state.start,"Decorators must be placed *before* the 'export' keyword. You can set the 'decoratorsBeforeExport' option to false to use the 'export @decorator class {}' syntax")}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.isAsyncFunction()},s.checkExport=function(t,e,s){if(e)if(s)this.checkDuplicateExports(t,"default");else if(t.specifiers&&t.specifiers.length)for(var i=0,r=t.specifiers;i<r.length;i++){var a=r[i];this.checkDuplicateExports(a,a.exported.name)}else if(t.declaration)if("FunctionDeclaration"===t.declaration.type||"ClassDeclaration"===t.declaration.type){var n=t.declaration.id;if(!n)throw new Error("Assertion failure");this.checkDuplicateExports(t,n.name)}else if("VariableDeclaration"===t.declaration.type)for(var o=0,h=t.declaration.declarations;o<h.length;o++){var p=h[o];this.checkDeclaration(p.id)}if(this.state.decoratorStack[this.state.decoratorStack.length-1].length){var u=t.declaration&&("ClassDeclaration"===t.declaration.type||"ClassExpression"===t.declaration.type);if(!t.declaration||!u)throw this.raise(t.start,"You can only use decorators on an export when exporting a class");this.takeDecorators(t.declaration)}},s.checkDeclaration=function(t){if("ObjectPattern"===t.type)for(var e=0,s=t.properties;e<s.length;e++){var i=s[e];this.checkDeclaration(i)}else if("ArrayPattern"===t.type)for(var r=0,a=t.elements;r<a.length;r++){var n=a[r];n&&this.checkDeclaration(n)}else"ObjectProperty"===t.type?this.checkDeclaration(t.value):"RestElement"===t.type?this.checkDeclaration(t.argument):"Identifier"===t.type&&this.checkDuplicateExports(t,t.name)},s.checkDuplicateExports=function(t,e){this.state.exportedIdentifiers.indexOf(e)>-1&&this.raiseDuplicateExportError(t,e),this.state.exportedIdentifiers.push(e)},s.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.")},s.parseExportSpecifiers=function(){var t,e=[],s=!0;for(this.expect(h.braceL);!this.eat(h.braceR);){if(s)s=!1;else if(this.expect(h.comma),this.eat(h.braceR))break;var i=this.match(h._default);i&&!t&&(t=!0);var r=this.startNode();r.local=this.parseIdentifier(i),r.exported=this.eatContextual("as")?this.parseIdentifier(!0):r.local.__clone(),e.push(this.finishNode(r,"ExportSpecifier"))}return t&&!this.isContextual("from")&&this.unexpected(),e},s.parseImport=function(t){return this.match(h.string)?(t.specifiers=[],t.source=this.parseExprAtom()):(t.specifiers=[],this.parseImportSpecifiers(t),this.expectContextual("from"),t.source=this.match(h.string)?this.parseExprAtom():this.unexpected()),this.semicolon(),this.finishNode(t,"ImportDeclaration")},s.shouldParseDefaultImport=function(t){return this.match(h.name)},s.parseImportSpecifierLocal=function(t,e,s,i){e.local=this.parseIdentifier(),this.checkLVal(e.local,!0,void 0,i),t.specifiers.push(this.finishNode(e,s))},s.parseImportSpecifiers=function(t){var e=!0;if(!this.shouldParseDefaultImport(t)||(this.parseImportSpecifierLocal(t,this.startNode(),"ImportDefaultSpecifier","default import specifier"),this.eat(h.comma))){if(this.match(h.star)){var s=this.startNode();return this.next(),this.expectContextual("as"),void this.parseImportSpecifierLocal(t,s,"ImportNamespaceSpecifier","import namespace specifier")}for(this.expect(h.braceL);!this.eat(h.braceR);){if(e)e=!1;else if(this.eat(h.colon)&&this.unexpected(null,"ES2015 named imports do not destructure. Use another statement for destructuring after the import."),this.expect(h.comma),this.eat(h.braceR))break;this.parseImportSpecifier(t)}}},s.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}(function(t){function e(){return t.apply(this,arguments)||this}i(e,t);var s=e.prototype;return s.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)}},s.getExpression=function(){this.nextToken();var t=this.parseExpression();return this.match(h.eof)||this.unexpected(),t.comments=this.state.comments,t},s.parseExpression=function(t,e){var s=this.state.start,i=this.state.startLoc,r=this.parseMaybeAssign(t,e);if(this.match(h.comma)){var a=this.startNodeAt(s,i);for(a.expressions=[r];this.eat(h.comma);)a.expressions.push(this.parseMaybeAssign(t,e));return this.toReferencedList(a.expressions),this.finishNode(a,"SequenceExpression")}return r},s.parseMaybeAssign=function(t,e,s,i){var r,a=this.state.start,n=this.state.startLoc;if(this.match(h._yield)&&this.state.inGenerator){var o=this.parseYield();return s&&(o=s.call(this,o,a,n)),o}e?r=!1:(e={start:0},r=!0),(this.match(h.parenL)||this.match(h.name)||this.match(h._yield))&&(this.state.potentialArrowAt=this.state.start);var p=this.parseMaybeConditional(t,e,i);if(s&&(p=s.call(this,p,a,n)),this.state.type.isAssign){var u,c=this.startNodeAt(a,n),l=this.state.value;if(c.operator=l,"??="===l&&(this.expectPlugin("nullishCoalescingOperator"),this.expectPlugin("logicalAssignment")),"||="!==l&&"&&="!==l||this.expectPlugin("logicalAssignment"),c.left=this.match(h.eq)?this.toAssignable(p,void 0,"assignment expression"):p,e.start=0,this.checkLVal(p,void 0,void 0,"assignment expression"),p.extra&&p.extra.parenthesized)"ObjectPattern"===p.type?u="`({a}) = 0` use `({a} = 0)`":"ArrayPattern"===p.type&&(u="`([a]) = 0` use `([a] = 0)`"),u&&this.raise(p.start,"You're trying to assign to a parenthesized expression, eg. instead of "+u);return this.next(),c.right=this.parseMaybeAssign(t),this.finishNode(c,"AssignmentExpression")}return r&&e.start&&this.unexpected(e.start),p},s.parseMaybeConditional=function(t,e,s){var i=this.state.start,r=this.state.startLoc,a=this.state.potentialArrowAt,n=this.parseExprOps(t,e);return"ArrowFunctionExpression"===n.type&&n.start===a?n:e&&e.start?n:this.parseConditional(n,t,i,r,s)},s.parseConditional=function(t,e,s,i,r){if(this.eat(h.question)){var a=this.startNodeAt(s,i);return a.test=t,a.consequent=this.parseMaybeAssign(),this.expect(h.colon),a.alternate=this.parseMaybeAssign(e),this.finishNode(a,"ConditionalExpression")}return t},s.parseExprOps=function(t,e){var s=this.state.start,i=this.state.startLoc,r=this.state.potentialArrowAt,a=this.parseMaybeUnary(e);return"ArrowFunctionExpression"===a.type&&a.start===r?a:e&&e.start?a:this.parseExprOp(a,s,i,-1,t)},s.parseExprOp=function(t,e,s,i,r){var a=this.state.type.binop;if(!(null==a||r&&this.match(h._in))&&a>i){var n=this.startNodeAt(e,s),o=this.state.value;n.left=t,n.operator=o,"**"!==o||"UnaryExpression"!==t.type||t.extra&&t.extra.parenthesized||this.raise(t.argument.start,"Illegal expression. Wrap left hand side or entire exponentiation in parentheses.");var p=this.state.type;if(p===h.pipeline?(this.expectPlugin("pipelineOperator"),this.state.inPipeline=!0,this.checkPipelineAtInfixOperator(t,e)):p===h.nullishCoalescing&&this.expectPlugin("nullishCoalescingOperator"),this.next(),p===h.pipeline&&"minimal"===this.getPluginOption("pipelineOperator","proposal")&&this.match(h.name)&&"await"===this.state.value&&this.state.inAsync)throw this.raise(this.state.start,'Unexpected "await" after pipeline body; await must have parentheses in minimal proposal');return n.right=this.parseExprOpRightExpr(p,a,r),this.finishNode(n,p===h.logicalOR||p===h.logicalAND||p===h.nullishCoalescing?"LogicalExpression":"BinaryExpression"),this.parseExprOp(n,e,s,i,r)}return t},s.parseExprOpRightExpr=function(t,e,s){var i=this;switch(t){case h.pipeline:if("smart"===this.getPluginOption("pipelineOperator","proposal")){var r=this.state.start,a=this.state.startLoc;return this.withTopicPermittingContext(function(){return i.parseSmartPipelineBody(i.parseExprOpBaseRightExpr(t,e,s),r,a)})}default:return this.parseExprOpBaseRightExpr(t,e,s)}},s.parseExprOpBaseRightExpr=function(t,e,s){var i=this.state.start,r=this.state.startLoc;return this.parseExprOp(this.parseMaybeUnary(),i,r,t.rightAssociative?e-1:e,s)},s.parseMaybeUnary=function(t){if(this.state.type.prefix){var e=this.startNode(),s=this.match(h.incDec);if(e.operator=this.state.value,e.prefix=!0,"throw"===e.operator&&this.expectPlugin("throwExpressions"),this.next(),e.argument=this.parseMaybeUnary(),t&&t.start&&this.unexpected(t.start),s)this.checkLVal(e.argument,void 0,void 0,"prefix operation");else if(this.state.strict&&"delete"===e.operator){var i=e.argument;"Identifier"===i.type?this.raise(e.start,"Deleting local variable in strict mode"):"MemberExpression"===i.type&&"PrivateName"===i.property.type&&this.raise(e.start,"Deleting a private field is not allowed")}return 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},s.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)},s.parseSubscripts=function(t,e,s,i){var r={optionalChainMember:!1,stop:!1};do{t=this.parseSubscript(t,e,s,i,r)}while(!r.stop);return t},s.parseSubscript=function(t,e,s,i,r){if(!i&&this.eat(h.doubleColon)){var a=this.startNodeAt(e,s);return a.object=t,a.callee=this.parseNoCallExpr(),r.stop=!0,this.parseSubscripts(this.finishNode(a,"BindExpression"),e,s,i)}if(this.match(h.questionDot)){if(this.expectPlugin("optionalChaining"),r.optionalChainMember=!0,i&&this.lookahead().type==h.parenL)return r.stop=!0,t;this.next();var n=this.startNodeAt(e,s);if(this.eat(h.bracketL))return n.object=t,n.property=this.parseExpression(),n.computed=!0,n.optional=!0,this.expect(h.bracketR),this.finishNode(n,"OptionalMemberExpression");if(this.eat(h.parenL)){var o=this.atPossibleAsync(t);return n.callee=t,n.arguments=this.parseCallExpressionArguments(h.parenR,o),n.optional=!0,this.finishNode(n,"OptionalCallExpression")}return n.object=t,n.property=this.parseIdentifier(!0),n.computed=!1,n.optional=!0,this.finishNode(n,"OptionalMemberExpression")}if(this.eat(h.dot)){var p=this.startNodeAt(e,s);return p.object=t,p.property=this.parseMaybePrivateName(),p.computed=!1,r.optionalChainMember?(p.optional=!1,this.finishNode(p,"OptionalMemberExpression")):this.finishNode(p,"MemberExpression")}if(this.eat(h.bracketL)){var u=this.startNodeAt(e,s);return u.object=t,u.property=this.parseExpression(),u.computed=!0,this.expect(h.bracketR),r.optionalChainMember?(u.optional=!1,this.finishNode(u,"OptionalMemberExpression")):this.finishNode(u,"MemberExpression")}if(!i&&this.match(h.parenL)){var c=this.state.maybeInArrowParameters,l=this.state.yieldOrAwaitInPossibleArrowParameters;this.state.maybeInArrowParameters=!0,this.state.yieldOrAwaitInPossibleArrowParameters=null;var d=this.atPossibleAsync(t);this.next();var f=this.startNodeAt(e,s);f.callee=t;var m={start:-1};return f.arguments=this.parseCallExpressionArguments(h.parenR,d,m),r.optionalChainMember?this.finishOptionalCallExpression(f):this.finishCallExpression(f),d&&this.shouldParseAsyncArrow()?(r.stop=!0,m.start>-1&&this.raise(m.start,"A trailing comma is not permitted after the rest element"),f=this.parseAsyncArrowFromCallExpression(this.startNodeAt(e,s),f),this.state.yieldOrAwaitInPossibleArrowParameters=l):(this.toReferencedListDeep(f.arguments),this.state.yieldOrAwaitInPossibleArrowParameters=this.state.yieldOrAwaitInPossibleArrowParameters||l),this.state.maybeInArrowParameters=c,f}return this.match(h.backQuote)?this.parseTaggedTemplateExpression(e,s,t,r):(r.stop=!0,t)},s.parseTaggedTemplateExpression=function(t,e,s,i,r){var a=this.startNodeAt(t,e);return a.tag=s,a.quasi=this.parseTemplate(!0),r&&(a.typeParameters=r),i.optionalChainMember&&this.raise(t,"Tagged Template Literals are not allowed in optionalChain"),this.finishNode(a,"TaggedTemplateExpression")},s.atPossibleAsync=function(t){return!this.state.containsEsc&&this.state.potentialArrowAt===t.start&&"Identifier"===t.type&&"async"===t.name&&!this.canInsertSemicolon()},s.finishCallExpression=function(t){if("Import"===t.callee.type){1!==t.arguments.length&&this.raise(t.start,"import() requires exactly one argument");var e=t.arguments[0];e&&"SpreadElement"===e.type&&this.raise(e.start,"... is not allowed in import()")}return this.finishNode(t,"CallExpression")},s.finishOptionalCallExpression=function(t){if("Import"===t.callee.type){1!==t.arguments.length&&this.raise(t.start,"import() requires exactly one argument");var e=t.arguments[0];e&&"SpreadElement"===e.type&&this.raise(e.start,"... is not allowed in import()")}return this.finishNode(t,"OptionalCallExpression")},s.parseCallExpressionArguments=function(t,e,s){for(var i,r=[],a=!0;!this.eat(t);){if(a)a=!1;else if(this.expect(h.comma),this.eat(t))break;this.match(h.parenL)&&!i&&(i=this.state.start),r.push(this.parseExprListItem(!1,e?{start:0}:void 0,e?{start:0}:void 0,e?s:void 0))}return e&&i&&this.shouldParseAsyncArrow()&&this.unexpected(),r},s.shouldParseAsyncArrow=function(){return this.match(h.arrow)},s.parseAsyncArrowFromCallExpression=function(t,e){return this.expect(h.arrow),this.parseArrowExpression(t,e.arguments,!0),t},s.parseNoCallExpr=function(){var t=this.state.start,e=this.state.startLoc;return this.parseSubscripts(this.parseExprAtom(),t,e,!0)},s.parseExprAtom=function(t){this.state.type===h.slash&&this.readRegexp();var e,s=this.state.potentialArrowAt===this.state.start;switch(this.state.type){case h._super:return this.state.inMethod||this.state.inClassProperty||this.options.allowSuperOutsideMethod||this.raise(this.state.start,"super is only allowed in object methods and classes"),e=this.startNode(),this.next(),this.match(h.parenL)||this.match(h.bracketL)||this.match(h.dot)||this.unexpected(),this.match(h.parenL)&&"constructor"!==this.state.inMethod&&!this.options.allowSuperOutsideMethod&&this.raise(e.start,"super() is only valid inside a class constructor. Make sure the method name is spelled exactly as 'constructor'."),this.finishNode(e,"Super");case h._import:return this.lookahead().type===h.dot?this.parseImportMetaProperty():(this.expectPlugin("dynamicImport"),e=this.startNode(),this.next(),this.match(h.parenL)||this.unexpected(null,h.parenL),this.finishNode(e,"Import"));case h._this:return e=this.startNode(),this.next(),this.finishNode(e,"ThisExpression");case h._yield:this.state.inGenerator&&this.unexpected();case h.name:e=this.startNode();var i="await"===this.state.value&&(this.state.inAsync||!this.state.inFunction&&this.options.allowAwaitOutsideFunction),r=this.state.containsEsc,a=this.shouldAllowYieldIdentifier(),n=this.parseIdentifier(i||a);if("await"===n.name){if(this.state.inAsync||this.inModule||!this.state.inFunction&&this.options.allowAwaitOutsideFunction)return this.parseAwait(e)}else{if(!r&&"async"===n.name&&this.match(h._function)&&!this.canInsertSemicolon())return this.next(),this.parseFunction(e,!1,!1,!0);if(s&&!this.canInsertSemicolon()&&"async"===n.name&&this.match(h.name)){var o=this.state.yieldOrAwaitInPossibleArrowParameters,p=this.state.inAsync;this.state.yieldOrAwaitInPossibleArrowParameters=null,this.state.inAsync=!0;var u=[this.parseIdentifier()];return this.expect(h.arrow),this.parseArrowExpression(e,u,!0),this.state.yieldOrAwaitInPossibleArrowParameters=o,this.state.inAsync=p,e}}if(s&&!this.canInsertSemicolon()&&this.eat(h.arrow)){var c=this.state.yieldOrAwaitInPossibleArrowParameters;return this.state.yieldOrAwaitInPossibleArrowParameters=null,this.parseArrowExpression(e,[n]),this.state.yieldOrAwaitInPossibleArrowParameters=c,e}return n;case h._do:this.expectPlugin("doExpressions");var l=this.startNode();this.next();var d=this.state.inFunction,f=this.state.labels;return this.state.labels=[],this.state.inFunction=!1,l.body=this.parseBlock(!1),this.state.inFunction=d,this.state.labels=f,this.finishNode(l,"DoExpression");case h.regexp:var m=this.state.value;return(e=this.parseLiteral(m.value,"RegExpLiteral")).pattern=m.pattern,e.flags=m.flags,e;case h.num:return this.parseLiteral(this.state.value,"NumericLiteral");case h.bigint:return this.parseLiteral(this.state.value,"BigIntLiteral");case h.string:return this.parseLiteral(this.state.value,"StringLiteral");case h._null:return e=this.startNode(),this.next(),this.finishNode(e,"NullLiteral");case h._true:case h._false:return this.parseBooleanLiteral();case h.parenL:return this.parseParenAndDistinguishExpression(s);case h.bracketL:return e=this.startNode(),this.next(),e.elements=this.parseExprList(h.bracketR,!0,t),this.state.maybeInArrowParameters||this.toReferencedList(e.elements),this.finishNode(e,"ArrayExpression");case h.braceL:return this.parseObj(!1,t);case h._function:return this.parseFunctionExpression();case h.at:this.parseDecorators();case h._class:return e=this.startNode(),this.takeDecorators(e),this.parseClass(e,!1);case h._new:return this.parseNew();case h.backQuote:return this.parseTemplate(!1);case h.doubleColon:e=this.startNode(),this.next(),e.object=null;var y=e.callee=this.parseNoCallExpr();if("MemberExpression"===y.type)return this.finishNode(e,"BindExpression");throw this.raise(y.start,"Binding should be performed on object property.");case h.hash:if(this.state.inPipeline){if(e=this.startNode(),"smart"!==this.getPluginOption("pipelineOperator","proposal")&&this.raise(e.start,"Primary Topic Reference found but pipelineOperator not passed 'smart' for 'proposal' option."),this.next(),this.primaryTopicReferenceIsAllowedInCurrentTopicContext())return this.registerTopicReference(),this.finishNode(e,"PipelinePrimaryTopicReference");throw this.raise(e.start,"Topic reference was used in a lexical context without topic binding")}default:throw this.unexpected()}},s.parseBooleanLiteral=function(){var t=this.startNode();return t.value=this.match(h._true),this.next(),this.finishNode(t,"BooleanLiteral")},s.parseMaybePrivateName=function(){if(this.match(h.hash)){this.expectOnePlugin(["classPrivateProperties","classPrivateMethods"]);var t=this.startNode(),e=this.state.end;this.next();var s=this.state.start;return 0!=s-e&&this.raise(s,"Unexpected space between # and identifier"),t.id=this.parseIdentifier(!0),this.finishNode(t,"PrivateName")}return this.parseIdentifier(!0)},s.parseFunctionExpression=function(){var t=this.startNode(),e=this.startNode();return this.next(),e=this.createIdentifier(e,"function"),this.state.inGenerator&&this.eat(h.dot)?this.parseMetaProperty(t,e,"sent"):this.parseFunction(t,!1)},s.parseMetaProperty=function(t,e,s){t.meta=e,"function"===e.name&&"sent"===s&&(this.isContextual(s)?this.expectPlugin("functionSent"):this.hasPlugin("functionSent")||this.unexpected());var i=this.state.containsEsc;return t.property=this.parseIdentifier(!0),(t.property.name!==s||i)&&this.raise(t.property.start,"The only valid meta property for "+e.name+" is "+e.name+"."+s),this.finishNode(t,"MetaProperty")},s.parseImportMetaProperty=function(){var t=this.startNode(),e=this.parseIdentifier(!0);return this.expect(h.dot),"import"===e.name&&(this.isContextual("meta")?this.expectPlugin("importMeta"):this.hasPlugin("importMeta")||this.raise(e.start,"Dynamic imports require a parameter: import('a.js')")),this.inModule||this.raise(e.start,"import.meta may appear only with 'sourceType: \"module\"'",{code:"BABEL_PARSER_SOURCETYPE_MODULE_REQUIRED"}),this.sawUnambiguousESM=!0,this.parseMetaProperty(t,e,"meta")},s.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)},s.parseParenExpression=function(){this.expect(h.parenL);var t=this.parseExpression();return this.expect(h.parenR),t},s.parseParenAndDistinguishExpression=function(t){var e,s=this.state.start,i=this.state.startLoc;this.expect(h.parenL);var r=this.state.maybeInArrowParameters,a=this.state.yieldOrAwaitInPossibleArrowParameters;this.state.maybeInArrowParameters=!0,this.state.yieldOrAwaitInPossibleArrowParameters=null;for(var n,o,p=this.state.start,u=this.state.startLoc,c=[],l={start:0},d={start:0},f=!0;!this.match(h.parenR);){if(f)f=!1;else if(this.expect(h.comma,d.start||null),this.match(h.parenR)){o=this.state.start;break}if(this.match(h.ellipsis)){var m=this.state.start,y=this.state.startLoc;if(n=this.state.start,c.push(this.parseParenItem(this.parseRest(),m,y)),this.match(h.comma)){var D=this.lookahead().type===h.parenR?"A trailing comma is not permitted after the rest element":"Rest parameter must be last formal parameter";this.raise(this.state.start,D)}break}c.push(this.parseMaybeAssign(!1,l,this.parseParenItem,d))}var x=this.state.start,v=this.state.startLoc;this.expect(h.parenR),this.state.maybeInArrowParameters=r;var P=this.startNodeAt(s,i);if(t&&this.shouldParseArrow()&&(P=this.parseArrow(P))){for(var g=0;g<c.length;g++){var b=c[g];b.extra&&b.extra.parenthesized&&this.unexpected(b.extra.parenStart)}return this.parseArrowExpression(P,c),this.state.yieldOrAwaitInPossibleArrowParameters=a,P}return this.state.yieldOrAwaitInPossibleArrowParameters=this.state.yieldOrAwaitInPossibleArrowParameters||a,c.length||this.unexpected(this.state.lastTokStart),o&&this.unexpected(o),n&&this.unexpected(n),l.start&&this.unexpected(l.start),d.start&&this.unexpected(d.start),this.toReferencedListDeep(c,!0),c.length>1?((e=this.startNodeAt(p,u)).expressions=c,this.finishNodeAt(e,"SequenceExpression",x,v)):e=c[0],this.addExtra(e,"parenthesized",!0),this.addExtra(e,"parenStart",s),e},s.shouldParseArrow=function(){return!this.canInsertSemicolon()},s.parseArrow=function(t){if(this.eat(h.arrow))return t},s.parseParenItem=function(t,e,s){return t},s.parseNew=function(){var t=this.startNode(),e=this.parseIdentifier(!0);if(this.eat(h.dot)){var s=this.parseMetaProperty(t,e,"target");if(!this.state.inFunction&&!this.state.inClassProperty){var i="new.target can only be used in functions";this.hasPlugin("classProperties")&&(i+=" or class properties"),this.raise(s.start,i)}return s}return t.callee=this.parseNoCallExpr(),"OptionalMemberExpression"!==t.callee.type&&"OptionalCallExpression"!==t.callee.type||this.raise(this.state.lastTokEnd,"constructors in/after an Optional Chain are not allowed"),this.eat(h.questionDot)&&this.raise(this.state.start,"constructors in/after an Optional Chain are not allowed"),this.parseNewArguments(t),this.finishNode(t,"NewExpression")},s.parseNewArguments=function(t){if(this.eat(h.parenL)){var e=this.parseExprList(h.parenR);this.toReferencedList(e),t.arguments=e}else t.arguments=[]},s.parseTemplateElement=function(t){var e=this.startNode();return null===this.state.value&&(t?this.state.invalidTemplateEscapePosition=null:this.raise(this.state.invalidTemplateEscapePosition||0,"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(h.backQuote),this.finishNode(e,"TemplateElement")},s.parseTemplate=function(t){var e=this.startNode();this.next(),e.expressions=[];var s=this.parseTemplateElement(t);for(e.quasis=[s];!s.tail;)this.expect(h.dollarBraceL),e.expressions.push(this.parseExpression()),this.expect(h.braceR),e.quasis.push(s=this.parseTemplateElement(t));return this.next(),this.finishNode(e,"TemplateLiteral")},s.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(h.braceR);){if(r)r=!1;else if(this.expect(h.comma),this.eat(h.braceR))break;if(this.match(h.at))if(this.hasPlugin("decorators"))this.raise(this.state.start,"Stage 2 decorators disallow object literal property decorators");else for(;this.match(h.at);)s.push(this.parseDecorator());var o=this.startNode(),p=!1,u=!1,c=void 0,l=void 0;if(s.length&&(o.decorators=s,s=[]),this.match(h.ellipsis)){if(o=this.parseSpread(t?{start:0}:void 0),t&&this.toAssignable(o,!0,"object pattern"),a.properties.push(o),!t)continue;var d=this.state.start;if(null!==n)this.unexpected(n,"Cannot have multiple rest elements when destructuring");else{if(this.eat(h.braceR))break;if(!this.match(h.comma)||this.lookahead().type!==h.braceR){n=d;continue}this.unexpected(d,"A trailing comma is not permitted after the rest element")}}o.method=!1,(t||e)&&(c=this.state.start,l=this.state.startLoc),t||(p=this.eat(h.star));var f=this.state.containsEsc;if(!t&&this.isContextual("async")){p&&this.unexpected();var m=this.parseIdentifier();this.match(h.colon)||this.match(h.parenL)||this.match(h.braceR)||this.match(h.eq)||this.match(h.comma)?(o.key=m,o.computed=!1):(u=!0,p=this.eat(h.star),this.parsePropertyName(o))}else this.parsePropertyName(o);this.parseObjPropValue(o,c,l,p,u,t,e,f),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")},s.isGetterOrSetterMethod=function(t,e){return!e&&!t.computed&&"Identifier"===t.key.type&&("get"===t.key.name||"set"===t.key.name)&&(this.match(h.string)||this.match(h.num)||this.match(h.bracketL)||this.match(h.name)||!!this.state.type.keyword)},s.checkGetterSetterParams=function(t){var e="get"===t.kind?0:1,s=t.start;t.params.length!==e&&("get"===t.kind?this.raise(s,"getter must not have any formal parameters"):this.raise(s,"setter must have exactly one formal parameter")),"set"===t.kind&&"RestElement"===t.params[0].type&&this.raise(s,"setter function argument must not be a rest parameter")},s.parseObjectMethod=function(t,e,s,i,r){return s||e||this.match(h.parenL)?(i&&this.unexpected(),t.kind="method",t.method=!0,this.parseMethod(t,e,s,!1,"ObjectMethod")):!r&&this.isGetterOrSetterMethod(t,i)?((e||s)&&this.unexpected(),t.kind=t.key.name,this.parsePropertyName(t),this.parseMethod(t,!1,!1,!1,"ObjectMethod"),this.checkGetterSetterParams(t),t):void 0},s.parseObjectProperty=function(t,e,s,i,r){return t.shorthand=!1,this.eat(h.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(h.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"))},s.parseObjPropValue=function(t,e,s,i,r,a,n,o){var h=this.parseObjectMethod(t,i,r,a,o)||this.parseObjectProperty(t,e,s,a,n);return h||this.unexpected(),h},s.parsePropertyName=function(t){if(this.eat(h.bracketL))t.computed=!0,t.key=this.parseMaybeAssign(),this.expect(h.bracketR);else{var e=this.state.inPropertyName;this.state.inPropertyName=!0,t.key=this.match(h.num)||this.match(h.string)?this.parseExprAtom():this.parseMaybePrivateName(),"PrivateName"!==t.key.type&&(t.computed=!1),this.state.inPropertyName=e}return t.key},s.initFunction=function(t,e){t.id=null,t.generator=!1,t.async=!!e},s.parseMethod=function(t,e,s,i,r){var a=this.state.inFunction,n=this.state.inMethod,o=this.state.inAsync,h=this.state.inGenerator;this.state.inFunction=!0,this.state.inMethod=t.kind||!0,this.state.inAsync=s,this.state.inGenerator=e,this.initFunction(t,s),t.generator=!!e;var p=i;return this.parseFunctionParams(t,p),this.parseFunctionBodyAndFinish(t,r),this.state.inFunction=a,this.state.inMethod=n,this.state.inAsync=o,this.state.inGenerator=h,t},s.parseArrowExpression=function(t,e,s){var i=this.state.yieldOrAwaitInPossibleArrowParameters;i&&("YieldExpression"===i.type?this.raise(i.start,"yield is not allowed in the parameters of an arrow function inside a generator"):this.raise(i.start,"await is not allowed in the parameters of an arrow function inside an async function"));var r=this.state.inFunction;this.state.inFunction=!0,this.initFunction(t,s),e&&this.setArrowFunctionParameters(t,e);var a=this.state.inAsync,n=this.state.inGenerator,o=this.state.maybeInArrowParameters;return this.state.inAsync=s,this.state.inGenerator=!1,this.state.maybeInArrowParameters=!1,this.parseFunctionBody(t,!0),this.state.inAsync=a,this.state.inGenerator=n,this.state.inFunction=r,this.state.maybeInArrowParameters=o,this.finishNode(t,"ArrowFunctionExpression")},s.setArrowFunctionParameters=function(t,e){t.params=this.toAssignableList(e,!0,"arrow function parameters")},s.isStrictBody=function(t){if("BlockStatement"===t.body.type&&t.body.directives.length)for(var e=0,s=t.body.directives;e<s.length;e++){if("use strict"===s[e].value.value)return!0}return!1},s.parseFunctionBodyAndFinish=function(t,e,s){this.parseFunctionBody(t,s),this.finishNode(t,e)},s.parseFunctionBody=function(t,e){var s=e&&!this.match(h.braceL),i=this.state.inParameters;if(this.state.inParameters=!1,s)t.body=this.parseMaybeAssign();else{var r=this.state.inGenerator,a=this.state.inFunction,n=this.state.labels;this.state.inGenerator=t.generator,this.state.inFunction=!0,this.state.labels=[],t.body=this.parseBlock(!0),this.state.inFunction=a,this.state.inGenerator=r,this.state.labels=n}this.checkFunctionNameAndParams(t,e),this.state.inParameters=i},s.checkFunctionNameAndParams=function(t,e){var s=this.isStrictBody(t),i=this.state.strict||s||e,r=this.state.strict;if(s&&(this.state.strict=s),i){var a=Object.create(null);t.id&&this.checkLVal(t.id,!0,void 0,"function name");for(var n=0,o=t.params;n<o.length;n++){var h=o[n];s&&"Identifier"!==h.type&&this.raise(h.start,"Non-simple parameter in strict mode"),this.checkLVal(h,!0,a,"function parameter list")}}this.state.strict=r},s.parseExprList=function(t,e,s){for(var i=[],r=!0;!this.eat(t);){if(r)r=!1;else if(this.expect(h.comma),this.eat(t))break;i.push(this.parseExprListItem(e,s))}return i},s.parseExprListItem=function(t,e,s,i){var r;if(t&&this.match(h.comma))r=null;else if(this.match(h.ellipsis)){var a=this.state.start,n=this.state.startLoc;r=this.parseParenItem(this.parseSpread(e,s),a,n),i&&this.match(h.comma)&&(i.start=this.state.start)}else r=this.parseMaybeAssign(!1,e,this.parseParenItem,s);return r},s.parseIdentifier=function(t){var e=this.startNode(),s=this.parseIdentifierName(e.start,t);return this.createIdentifier(e,s)},s.createIdentifier=function(t,e){return t.name=e,t.loc.identifierName=e,this.finishNode(t,"Identifier")},s.parseIdentifierName=function(t,e){var s;if(e||this.checkReservedWord(this.state.value,this.state.start,!!this.state.type.keyword,!1),this.match(h.name))s=this.state.value;else{if(!this.state.type.keyword)throw this.unexpected();"class"!==(s=this.state.type.keyword)&&"function"!==s||this.state.lastTokEnd===this.state.lastTokStart+1&&46===this.input.charCodeAt(this.state.lastTokStart)||this.state.context.pop()}return!e&&"await"===s&&this.state.inAsync&&this.raise(t,"invalid use of await inside of an async function"),this.next(),s},s.checkReservedWord=function(t,e,s,i){this.state.strict&&(v.strict(t)||i&&v.strictBind(t))&&this.raise(e,t+" is a reserved word in strict mode"),this.state.inGenerator&&"yield"===t&&this.raise(e,"yield is a reserved word inside generator functions"),this.state.inClassProperty&&"arguments"===t&&this.raise(e,"'arguments' is not allowed in class field initializer"),(this.isReservedWord(t)||s&&this.isKeyword(t))&&this.raise(e,t+" is a reserved word")},s.parseAwait=function(t){return this.state.inAsync||!this.state.inFunction&&this.options.allowAwaitOutsideFunction||this.unexpected(),this.state.inParameters&&this.raise(t.start,"await is not allowed in async function parameters"),this.match(h.star)&&this.raise(t.start,"await* has been removed from the async functions proposal. Use Promise.all() instead."),this.state.maybeInArrowParameters&&!this.state.yieldOrAwaitInPossibleArrowParameters&&(this.state.yieldOrAwaitInPossibleArrowParameters=t),t.argument=this.parseMaybeUnary(),this.finishNode(t,"AwaitExpression")},s.parseYield=function(){var t=this.startNode();return this.state.inParameters&&this.raise(t.start,"yield is not allowed in generator parameters"),this.state.maybeInArrowParameters&&!this.state.yieldOrAwaitInPossibleArrowParameters&&(this.state.yieldOrAwaitInPossibleArrowParameters=t),this.next(),this.match(h.semi)||this.canInsertSemicolon()||!this.match(h.star)&&!this.state.type.startsExpr?(t.delegate=!1,t.argument=null):(t.delegate=this.eat(h.star),t.argument=this.parseMaybeAssign()),this.finishNode(t,"YieldExpression")},s.checkPipelineAtInfixOperator=function(t,e){if("smart"===this.getPluginOption("pipelineOperator","proposal")&&"SequenceExpression"===t.type)throw this.raise(e,"Pipeline head should not be a comma-separated sequence expression")},s.parseSmartPipelineBody=function(t,e,s){var i=this.checkSmartPipelineBodyStyle(t);return this.checkSmartPipelineBodyEarlyErrors(t,i,e),this.parseSmartPipelineBodyInStyle(t,i,e,s)},s.checkSmartPipelineBodyEarlyErrors=function(t,e,s){if(this.match(h.arrow))throw this.raise(this.state.start,'Unexpected arrow "=>" after pipeline body; arrow function in pipeline body must be parenthesized');if("PipelineTopicExpression"===e&&"SequenceExpression"===t.type)throw this.raise(s,"Pipeline body may not be a comma-separated sequence expression")},s.parseSmartPipelineBodyInStyle=function(t,e,s,i){var r=this.startNodeAt(s,i);switch(e){case"PipelineBareFunction":r.callee=t;break;case"PipelineBareConstructor":r.callee=t.callee;break;case"PipelineBareAwaitedFunction":r.callee=t.argument;break;case"PipelineTopicExpression":if(!this.topicReferenceWasUsedInCurrentTopicContext())throw this.raise(s,"Pipeline is in topic style but does not use topic reference");r.expression=t;break;default:throw this.raise(s,"Unknown pipeline style "+e)}return this.finishNode(r,e)},s.checkSmartPipelineBodyStyle=function(t){return t.type,this.isSimpleReference(t)?"PipelineBareFunction":"PipelineTopicExpression"},s.isSimpleReference=function(t){switch(t.type){case"MemberExpression":return!t.computed&&this.isSimpleReference(t.object);case"Identifier":return!0;default:return!1}},s.withTopicPermittingContext=function(t){var e=this.state.topicContext;this.state.topicContext={maxNumOfResolvableTopics:1,maxTopicIndex:null};try{return t()}finally{this.state.topicContext=e}},s.withTopicForbiddingContext=function(t){var e=this.state.topicContext;this.state.topicContext={maxNumOfResolvableTopics:0,maxTopicIndex:null};try{return t()}finally{this.state.topicContext=e}},s.registerTopicReference=function(){this.state.topicContext.maxTopicIndex=0},s.primaryTopicReferenceIsAllowedInCurrentTopicContext=function(){return this.state.topicContext.maxNumOfResolvableTopics>=1},s.topicReferenceWasUsedInCurrentTopicContext=function(){return null!=this.state.topicContext.maxTopicIndex&&this.state.topicContext.maxTopicIndex>=0},e}(function(t){function e(){return t.apply(this,arguments)||this}i(e,t);var s=e.prototype;return s.toAssignable=function(t,e,s){if(t)switch(t.type){case"Identifier":case"ObjectPattern":case"ArrayPattern":case"AssignmentPattern":break;case"ObjectExpression":t.type="ObjectPattern";for(var i=0;i<t.properties.length;i++){var r=t.properties[i],a=i===t.properties.length-1;this.toAssignableObjectExpressionProp(r,e,a)}break;case"ObjectProperty":this.toAssignable(t.value,e,s);break;case"SpreadElement":this.checkToRestConversion(t),t.type="RestElement";var n=t.argument;this.toAssignable(n,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 o="Invalid left-hand side"+(s?" in "+s:"expression");this.raise(t.start,o)}return t},s.toAssignableObjectExpressionProp=function(t,e,s){if("ObjectMethod"===t.type){var i="get"===t.kind||"set"===t.kind?"Object pattern can't contain getter or setter":"Object pattern can't contain methods";this.raise(t.key.start,i)}else"SpreadElement"!==t.type||s?this.toAssignable(t,e,"object destructuring pattern"):this.raise(t.start,"The rest element has to be the last element when destructuring")},s.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),-1===["Identifier","MemberExpression","ArrayPattern","ObjectPattern"].indexOf(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},s.toReferencedList=function(t,e){return t},s.toReferencedListDeep=function(t,e){this.toReferencedList(t,e);for(var s=0;s<t.length;s++){var i=t[s];i&&"ArrayExpression"===i.type&&this.toReferencedListDeep(i.elements)}return t},s.parseSpread=function(t,e){var s=this.startNode();return this.next(),s.argument=this.parseMaybeAssign(!1,t,void 0,e),this.finishNode(s,"SpreadElement")},s.parseRest=function(){var t=this.startNode();return this.next(),t.argument=this.parseBindingAtom(),this.finishNode(t,"RestElement")},s.shouldAllowYieldIdentifier=function(){return this.match(h._yield)&&!this.state.strict&&!this.state.inGenerator},s.parseBindingIdentifier=function(){return this.parseIdentifier(this.shouldAllowYieldIdentifier())},s.parseBindingAtom=function(){switch(this.state.type){case h._yield:case h.name:return this.parseBindingIdentifier();case h.bracketL:var t=this.startNode();return this.next(),t.elements=this.parseBindingList(h.bracketR,!0),this.finishNode(t,"ArrayPattern");case h.braceL:return this.parseObj(!0);default:throw this.unexpected()}},s.parseBindingList=function(t,e,s){for(var i=[],r=!0;!this.eat(t);)if(r?r=!1:this.expect(h.comma),e&&this.match(h.comma))i.push(null);else{if(this.eat(t))break;if(this.match(h.ellipsis)){if(i.push(this.parseAssignableListItemTypes(this.parseRest())),this.state.inFunction&&this.state.inParameters&&this.match(h.comma)){var a=this.lookahead().type===h.parenR?"A trailing comma is not permitted after the rest element":"Rest parameter must be last formal parameter";this.raise(this.state.start,a)}else this.expect(t);break}var n=[];for(this.match(h.at)&&this.hasPlugin("decorators")&&this.raise(this.state.start,"Stage 2 decorators cannot be used to decorate parameters");this.match(h.at);)n.push(this.parseDecorator());i.push(this.parseAssignableListItem(s,n))}return i},s.parseAssignableListItem=function(t,e){var s=this.parseMaybeDefault();this.parseAssignableListItemTypes(s);var i=this.parseMaybeDefault(s.start,s.loc.start,s);return e.length&&(s.decorators=e),i},s.parseAssignableListItemTypes=function(t){return t},s.parseMaybeDefault=function(t,e,s){if(e=e||this.state.startLoc,t=t||this.state.start,s=s||this.parseBindingAtom(),!this.eat(h.eq))return s;var i=this.startNodeAt(t,e);return i.left=s,i.right=this.parseMaybeAssign(),this.finishNode(i,"AssignmentPattern")},s.checkLVal=function(t,e,s,i){switch(t.type){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,"Binding member expression");break;case"ObjectPattern":for(var a=0,n=t.properties;a<n.length;a++){var o=n[a];"ObjectProperty"===o.type&&(o=o.value),this.checkLVal(o,e,s,"object destructuring pattern")}break;case"ArrayPattern":for(var h=0,p=t.elements;h<p.length;h++){var u=p[h];u&&this.checkLVal(u,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 c=(e?"Binding invalid":"Invalid")+" left-hand side"+(i?" in "+i:"expression");this.raise(t.start,c)}},s.checkToRestConversion=function(t){-1===["Identifier","MemberExpression"].indexOf(t.argument.type)&&this.raise(t.argument.start,"Invalid rest operator's argument")},e}(function(t){function e(){return t.apply(this,arguments)||this}i(e,t);var s=e.prototype;return s.startNode=function(){return new Y(this,this.state.start,this.state.startLoc)},s.startNodeAt=function(t,e){return new Y(this,t,e)},s.startNodeAtNode=function(t){return this.startNodeAt(t.start,t.loc.start)},s.finishNode=function(t,e){return this.finishNodeAt(t,e,this.state.lastTokEnd,this.state.lastTokEndLoc)},s.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},s.resetStartLocationFromNode=function(t,e){t.start=e.start,t.loc.start=e.loc.start,this.options.ranges&&(t.range[0]=e.range[0])},e}(z)))));function st(t){if(null==t)throw new Error("Unexpected "+t+" value.");return t}function it(t){if(!t)throw new Error("Assert fail")}function rt(t,e){return t.some(function(t){return Array.isArray(t)?t[0]===e:t===e})}function at(t,e,s){var i=t.find(function(t){return Array.isArray(t)?t[0]===e:t===e});return i&&Array.isArray(i)?i[1][s]:null}var nt=["minimal","smart"];var ot=["estree","jsx","flow","typescript"],ht={estree:function(t){return function(t){function e(){return t.apply(this,arguments)||this}i(e,t);var s=e.prototype;return s.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},s.estreeParseLiteral=function(t){return this.parseLiteral(t,"Literal")},s.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)},s.initFunction=function(e,s){t.prototype.initFunction.call(this,e,s),e.expression=!1},s.checkDeclaration=function(e){u(e)?this.checkDeclaration(e.value):t.prototype.checkDeclaration.call(this,e)},s.checkGetterSetterParams=function(t){var e=t,s="get"===e.kind?0:1,i=e.start;e.value.params.length!==s&&("get"===e.kind?this.raise(i,"getter must not have any formal parameters"):this.raise(i,"setter must have exactly one formal parameter")),"set"===e.kind&&"RestElement"===e.value.params[0].type&&this.raise(i,"setter function argument must not be a rest parameter")},s.checkLVal=function(e,s,i,r){var 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:t.prototype.checkLVal.call(this,e,s,i,r)}},s.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)}},s.isStrictBody=function(t){if("BlockStatement"===t.body.type&&t.body.body.length>0)for(var e=0,s=t.body.body;e<s.length;e++){var i=s[e];if("ExpressionStatement"!==i.type||"Literal"!==i.expression.type)break;if("use strict"===i.expression.value)return!0}return!1},s.isValidDirective=function(t){return!("ExpressionStatement"!==t.type||"Literal"!==t.expression.type||"string"!=typeof t.expression.value||t.expression.extra&&t.expression.extra.parenthesized)},s.stmtToDirective=function(e){var s=t.prototype.stmtToDirective.call(this,e),i=e.expression.value;return s.value.value=i,s},s.parseBlockBody=function(e,s,i,r){var a=this;t.prototype.parseBlockBody.call(this,e,s,i,r);var n=e.directives.map(function(t){return a.directiveToStmt(t)});e.body=n.concat(e.body),delete e.directives},s.pushClassMethod=function(t,e,s,i,r){this.parseMethod(e,s,i,r,"MethodDefinition"),e.typeParameters&&(e.value.typeParameters=e.typeParameters,delete e.typeParameters),t.body.push(e)},s.parseExprAtom=function(e){switch(this.state.type){case h.regexp:return this.estreeParseRegExpLiteral(this.state.value);case h.num:case h.string:return this.estreeParseLiteral(this.state.value);case h._null:return this.estreeParseLiteral(null);case h._true:return this.estreeParseLiteral(!0);case h._false:return this.estreeParseLiteral(!1);default:return t.prototype.parseExprAtom.call(this,e)}},s.parseLiteral=function(e,s,i,r){var a=t.prototype.parseLiteral.call(this,e,s,i,r);return a.raw=a.extra.raw,delete a.extra,a},s.parseFunctionBody=function(e,s){t.prototype.parseFunctionBody.call(this,e,s),e.expression="BlockStatement"!==e.body.type},s.parseMethod=function(e,s,i,r,a){var n=this.startNode();return n.kind=e.kind,delete(n=t.prototype.parseMethod.call(this,n,s,i,r,"FunctionExpression")).kind,e.value=n,this.finishNode(e,a)},s.parseObjectMethod=function(e,s,i,r,a){var n=t.prototype.parseObjectMethod.call(this,e,s,i,r,a);return n&&(n.type="Property","method"===n.kind&&(n.kind="init"),n.shorthand=!1),n},s.parseObjectProperty=function(e,s,i,r,a){var n=t.prototype.parseObjectProperty.call(this,e,s,i,r,a);return n&&(n.kind="init",n.type="Property"),n},s.toAssignable=function(e,s,i){return u(e)?(this.toAssignable(e.value,s,i),e):t.prototype.toAssignable.call(this,e,s,i)},s.toAssignableObjectExpressionProp=function(e,s,i){"get"===e.kind||"set"===e.kind?this.raise(e.key.start,"Object pattern can't contain getter or setter"):e.method?this.raise(e.key.start,"Object pattern can't contain methods"):t.prototype.toAssignableObjectExpressionProp.call(this,e,s,i)},e}(t)},jsx:function(t){return function(t){function e(){return t.apply(this,arguments)||this}i(e,t);var s=e.prototype;return s.jsxReadToken=function(){for(var t="",e=this.state.pos;;){this.state.pos>=this.input.length&&this.raise(this.state.start,"Unterminated JSX contents");var s=this.input.charCodeAt(this.state.pos);switch(s){case 60:case 123:return this.state.pos===this.state.start?60===s&&this.state.exprAllowed?(++this.state.pos,this.finishToken(h.jsxTagStart)):this.getTokenFromCode(s):(t+=this.input.slice(e,this.state.pos),this.finishToken(h.jsxText,t));case 38:t+=this.input.slice(e,this.state.pos),t+=this.jsxReadEntity(),e=this.state.pos;break;default:d(s)?(t+=this.input.slice(e,this.state.pos),t+=this.jsxReadNewLine(!0),e=this.state.pos):++this.state.pos}}},s.jsxReadNewLine=function(t){var e,s=this.input.charCodeAt(this.state.pos);return++this.state.pos,13===s&&10===this.input.charCodeAt(this.state.pos)?(++this.state.pos,e=t?"\n":"\r\n"):e=String.fromCharCode(s),++this.state.curLine,this.state.lineStart=this.state.pos,e},s.jsxReadString=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;38===i?(e+=this.input.slice(s,this.state.pos),e+=this.jsxReadEntity(),s=this.state.pos):d(i)?(e+=this.input.slice(s,this.state.pos),e+=this.jsxReadNewLine(!1),s=this.state.pos):++this.state.pos}return e+=this.input.slice(s,this.state.pos++),this.finishToken(h.string,e)},s.jsxReadEntity=function(){for(var t,e="",s=0,i=this.input[this.state.pos],r=++this.state.pos;this.state.pos<this.input.length&&s++<10;){if(";"===(i=this.input[this.state.pos++])){"#"===e[0]?"x"===e[1]?(e=e.substr(2),R.test(e)&&(t=String.fromCodePoint(parseInt(e,16)))):(e=e.substr(1),_.test(e)&&(t=String.fromCodePoint(parseInt(e,10)))):t=M[e];break}e+=i}return t||(this.state.pos=r,"&")},s.jsxReadWord=function(){var t,e=this.state.pos;do{t=this.input.charCodeAt(++this.state.pos)}while(F(t)||45===t);return this.finishToken(h.jsxName,this.input.slice(e,this.state.pos))},s.jsxParseIdentifier=function(){var t=this.startNode();return this.match(h.jsxName)?t.name=this.state.value:this.state.type.keyword?t.name=this.state.type.keyword:this.unexpected(),this.next(),this.finishNode(t,"JSXIdentifier")},s.jsxParseNamespacedName=function(){var t=this.state.start,e=this.state.startLoc,s=this.jsxParseIdentifier();if(!this.eat(h.colon))return s;var i=this.startNodeAt(t,e);return i.namespace=s,i.name=this.jsxParseIdentifier(),this.finishNode(i,"JSXNamespacedName")},s.jsxParseElementName=function(){for(var t=this.state.start,e=this.state.startLoc,s=this.jsxParseNamespacedName();this.eat(h.dot);){var i=this.startNodeAt(t,e);i.object=s,i.property=this.jsxParseIdentifier(),s=this.finishNode(i,"JSXMemberExpression")}return s},s.jsxParseAttributeValue=function(){var t;switch(this.state.type){case h.braceL:if("JSXEmptyExpression"===(t=this.jsxParseExpressionContainer()).expression.type)throw this.raise(t.start,"JSX attributes must only be assigned a non-empty expression");return t;case h.jsxTagStart:case h.string:return this.parseExprAtom();default:throw this.raise(this.state.start,"JSX value should be either an expression or a quoted JSX text")}},s.jsxParseEmptyExpression=function(){var t=this.startNodeAt(this.state.lastTokEnd,this.state.lastTokEndLoc);return this.finishNodeAt(t,"JSXEmptyExpression",this.state.start,this.state.startLoc)},s.jsxParseSpreadChild=function(){var t=this.startNode();return this.expect(h.braceL),this.expect(h.ellipsis),t.expression=this.parseExpression(),this.expect(h.braceR),this.finishNode(t,"JSXSpreadChild")},s.jsxParseExpressionContainer=function(){var t=this.startNode();return this.next(),this.match(h.braceR)?t.expression=this.jsxParseEmptyExpression():t.expression=this.parseExpression(),this.expect(h.braceR),this.finishNode(t,"JSXExpressionContainer")},s.jsxParseAttribute=function(){var t=this.startNode();return this.eat(h.braceL)?(this.expect(h.ellipsis),t.argument=this.parseMaybeAssign(),this.expect(h.braceR),this.finishNode(t,"JSXSpreadAttribute")):(t.name=this.jsxParseNamespacedName(),t.value=this.eat(h.eq)?this.jsxParseAttributeValue():null,this.finishNode(t,"JSXAttribute"))},s.jsxParseOpeningElementAt=function(t,e){var s=this.startNodeAt(t,e);return this.match(h.jsxTagEnd)?(this.expect(h.jsxTagEnd),this.finishNode(s,"JSXOpeningFragment")):(s.name=this.jsxParseElementName(),this.jsxParseOpeningElementAfterName(s))},s.jsxParseOpeningElementAfterName=function(t){for(var e=[];!this.match(h.slash)&&!this.match(h.jsxTagEnd);)e.push(this.jsxParseAttribute());return t.attributes=e,t.selfClosing=this.eat(h.slash),this.expect(h.jsxTagEnd),this.finishNode(t,"JSXOpeningElement")},s.jsxParseClosingElementAt=function(t,e){var s=this.startNodeAt(t,e);return this.match(h.jsxTagEnd)?(this.expect(h.jsxTagEnd),this.finishNode(s,"JSXClosingFragment")):(s.name=this.jsxParseElementName(),this.expect(h.jsxTagEnd),this.finishNode(s,"JSXClosingElement"))},s.jsxParseElementAt=function(t,e){var s=this.startNodeAt(t,e),i=[],r=this.jsxParseOpeningElementAt(t,e),a=null;if(!r.selfClosing){t:for(;;)switch(this.state.type){case h.jsxTagStart:if(t=this.state.start,e=this.state.startLoc,this.next(),this.eat(h.slash)){a=this.jsxParseClosingElementAt(t,e);break t}i.push(this.jsxParseElementAt(t,e));break;case h.jsxText:i.push(this.parseExprAtom());break;case h.braceL:this.lookahead().type===h.ellipsis?i.push(this.jsxParseSpreadChild()):i.push(this.jsxParseExpressionContainer());break;default:throw this.unexpected()}B(r)&&!B(a)?this.raise(a.start,"Expected corresponding JSX closing tag for <>"):!B(r)&&B(a)?this.raise(a.start,"Expected corresponding JSX closing tag for <"+j(r.name)+">"):B(r)||B(a)||j(a.name)!==j(r.name)&&this.raise(a.start,"Expected corresponding JSX closing tag for <"+j(r.name)+">")}return B(r)?(s.openingFragment=r,s.closingFragment=a):(s.openingElement=r,s.closingElement=a),s.children=i,this.match(h.relational)&&"<"===this.state.value&&this.raise(this.state.start,"Adjacent JSX elements must be wrapped in an enclosing tag. Did you want a JSX fragment <>...</>?"),B(r)?this.finishNode(s,"JSXFragment"):this.finishNode(s,"JSXElement")},s.jsxParseElement=function(){var t=this.state.start,e=this.state.startLoc;return this.next(),this.jsxParseElementAt(t,e)},s.parseExprAtom=function(e){return this.match(h.jsxText)?this.parseLiteral(this.state.value,"JSXText"):this.match(h.jsxTagStart)?this.jsxParseElement():this.isRelational("<")&&33!==this.state.input.charCodeAt(this.state.pos)?(this.finishToken(h.jsxTagStart),this.jsxParseElement()):t.prototype.parseExprAtom.call(this,e)},s.readToken=function(e){if(this.state.inPropertyName)return t.prototype.readToken.call(this,e);var s=this.curContext();if(s===D.j_expr)return this.jsxReadToken();if(s===D.j_oTag||s===D.j_cTag){if(N(e))return this.jsxReadWord();if(62===e)return++this.state.pos,this.finishToken(h.jsxTagEnd);if((34===e||39===e)&&s===D.j_oTag)return this.jsxReadString(e)}return 60===e&&this.state.exprAllowed&&33!==this.state.input.charCodeAt(this.state.pos+1)?(++this.state.pos,this.finishToken(h.jsxTagStart)):t.prototype.readToken.call(this,e)},s.updateContext=function(e){if(this.match(h.braceL)){var s=this.curContext();s===D.j_oTag?this.state.context.push(D.braceExpression):s===D.j_expr?this.state.context.push(D.templateQuasi):t.prototype.updateContext.call(this,e),this.state.exprAllowed=!0}else{if(!this.match(h.slash)||e!==h.jsxTagStart)return t.prototype.updateContext.call(this,e);this.state.context.length-=2,this.state.context.push(D.j_cTag),this.state.exprAllowed=!1}},e}(t)},flow:function(t){return function(t){function e(e,s){var i;return(i=t.call(this,e,s)||this).flowPragma=void 0,i}i(e,t);var s=e.prototype;return s.shouldParseTypes=function(){return this.getPluginOption("flow","all")||"flow"===this.flowPragma},s.addComment=function(e){if(void 0===this.flowPragma){var s=O.exec(e.value);if(s)if("flow"===s[1])this.flowPragma="flow";else{if("noflow"!==s[1])throw new Error("Unexpected flow pragma");this.flowPragma="noflow"}else this.flowPragma=null}return t.prototype.addComment.call(this,e)},s.flowParseTypeInitialiser=function(t){var e=this.state.inType;this.state.inType=!0,this.expect(t||h.colon);var s=this.flowParseType();return this.state.inType=e,s},s.flowParsePredicate=function(){var t=this.startNode(),e=this.state.startLoc,s=this.state.start;this.expect(h.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(h.parenL)?(t.value=this.parseExpression(),this.expect(h.parenR),this.finishNode(t,"DeclaredPredicate")):this.finishNode(t,"InferredPredicate")},s.flowParseTypeAndPredicateInitialiser=function(){var t=this.state.inType;this.state.inType=!0,this.expect(h.colon);var e=null,s=null;return this.match(h.modulo)?(this.state.inType=t,s=this.flowParsePredicate()):(e=this.flowParseType(),this.state.inType=t,this.match(h.modulo)&&(s=this.flowParsePredicate())),[e,s]},s.flowParseDeclareClass=function(t){return this.next(),this.flowParseInterfaceish(t,!0),this.finishNode(t,"DeclareClass")},s.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(h.parenL);var r=this.flowParseFunctionTypeParams();s.params=r.params,s.rest=r.rest,this.expect(h.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")},s.flowParseDeclare=function(t,e){if(this.match(h._class))return this.flowParseDeclareClass(t);if(this.match(h._function))return this.flowParseDeclareFunction(t);if(this.match(h._var))return this.flowParseDeclareVariable(t);if(this.isContextual("module"))return this.lookahead().type===h.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("opaque"))return this.flowParseDeclareOpaqueType(t);if(this.isContextual("interface"))return this.flowParseDeclareInterface(t);if(this.match(h._export))return this.flowParseDeclareExportDeclaration(t,e);throw this.unexpected()},s.flowParseDeclareVariable=function(t){return this.next(),t.id=this.flowParseTypeAnnotatableIdentifier(!0),this.semicolon(),this.finishNode(t,"DeclareVariable")},s.flowParseDeclareModule=function(t){var e=this;this.next(),this.match(h.string)?t.id=this.parseExprAtom():t.id=this.parseIdentifier();var s=t.body=this.startNode(),i=s.body=[];for(this.expect(h.braceL);!this.match(h.braceR);){var r=this.startNode();if(this.match(h._import)){var a=this.lookahead();"type"!==a.value&&"typeof"!==a.value&&this.unexpected(null,"Imports within a `declare module` body must always be `import type` or `import typeof`"),this.next(),this.parseImport(r)}else this.expectContextual("declare","Only declares and type imports are allowed inside declare module"),r=this.flowParseDeclare(r,!0);i.push(r)}this.expect(h.braceR),this.finishNode(s,"BlockStatement");var n=null,o=!1,p="Found both `declare module.exports` and `declare export` in the same module. Modules can only have 1 since they are either an ES module or they are a CommonJS module";return i.forEach(function(t){!function(t){return"DeclareExportAllDeclaration"===t.type||"DeclareExportDeclaration"===t.type&&(!t.declaration||"TypeAlias"!==t.declaration.type&&"InterfaceDeclaration"!==t.declaration.type)}(t)?"DeclareModuleExports"===t.type&&(o&&e.unexpected(t.start,"Duplicate `declare module.exports` statement"),"ES"===n&&e.unexpected(t.start,p),n="CommonJS",o=!0):("CommonJS"===n&&e.unexpected(t.start,p),n="ES")}),t.kind=n||"CommonJS",this.finishNode(t,"DeclareModule")},s.flowParseDeclareExportDeclaration=function(t,e){if(this.expect(h._export),this.eat(h._default))return this.match(h._function)||this.match(h._class)?t.declaration=this.flowParseDeclare(this.startNode()):(t.declaration=this.flowParseType(),this.semicolon()),t.default=!0,this.finishNode(t,"DeclareExportDeclaration");if(this.match(h._const)||this.match(h._let)||(this.isContextual("type")||this.isContextual("interface"))&&!e){var s=this.state.value,i=L[s];this.unexpected(this.state.start,"`declare export "+s+"` is not supported. Use `"+i+"` instead")}if(this.match(h._var)||this.match(h._function)||this.match(h._class)||this.isContextual("opaque"))return t.declaration=this.flowParseDeclare(this.startNode()),t.default=!1,this.finishNode(t,"DeclareExportDeclaration");if(this.match(h.star)||this.match(h.braceL)||this.isContextual("interface")||this.isContextual("type")||this.isContextual("opaque"))return"ExportNamedDeclaration"===(t=this.parseExport(t)).type&&(t.type="ExportDeclaration",t.default=!1,delete t.exportKind),t.type="Declare"+t.type,t;throw this.unexpected()},s.flowParseDeclareModuleExports=function(t){return this.expectContextual("module"),this.expect(h.dot),this.expectContextual("exports"),t.typeAnnotation=this.flowParseTypeAnnotation(),this.semicolon(),this.finishNode(t,"DeclareModuleExports")},s.flowParseDeclareTypeAlias=function(t){return this.next(),this.flowParseTypeAlias(t),this.finishNode(t,"DeclareTypeAlias")},s.flowParseDeclareOpaqueType=function(t){return this.next(),this.flowParseOpaqueType(t,!0),this.finishNode(t,"DeclareOpaqueType")},s.flowParseDeclareInterface=function(t){return this.next(),this.flowParseInterfaceish(t),this.finishNode(t,"DeclareInterface")},s.flowParseInterfaceish=function(t,e){if(void 0===e&&(e=!1),t.id=this.flowParseRestrictedIdentifier(!e),this.isRelational("<")?t.typeParameters=this.flowParseTypeParameterDeclaration():t.typeParameters=null,t.extends=[],t.implements=[],t.mixins=[],this.eat(h._extends))do{t.extends.push(this.flowParseInterfaceExtends())}while(!e&&this.eat(h.comma));if(this.isContextual("mixins")){this.next();do{t.mixins.push(this.flowParseInterfaceExtends())}while(this.eat(h.comma))}if(this.isContextual("implements")){this.next();do{t.implements.push(this.flowParseInterfaceExtends())}while(this.eat(h.comma))}t.body=this.flowParseObjectType({allowStatic:e,allowExact:!1,allowSpread:!1,allowProto:e,allowInexact:!1})},s.flowParseInterfaceExtends=function(){var t=this.startNode();return t.id=this.flowParseQualifiedTypeIdentifier(),this.isRelational("<")?t.typeParameters=this.flowParseTypeParameterInstantiation():t.typeParameters=null,this.finishNode(t,"InterfaceExtends")},s.flowParseInterface=function(t){return this.flowParseInterfaceish(t),this.finishNode(t,"InterfaceDeclaration")},s.checkNotUnderscore=function(t){if("_"===t)throw this.unexpected(null,"`_` is only allowed as a type argument to call or new")},s.checkReservedType=function(t,e){k.indexOf(t)>-1&&this.raise(e,"Cannot overwrite reserved type "+t)},s.flowParseRestrictedIdentifier=function(t){return this.checkReservedType(this.state.value,this.state.start),this.parseIdentifier(t)},s.flowParseTypeAlias=function(t){return t.id=this.flowParseRestrictedIdentifier(),this.isRelational("<")?t.typeParameters=this.flowParseTypeParameterDeclaration():t.typeParameters=null,t.right=this.flowParseTypeInitialiser(h.eq),this.semicolon(),this.finishNode(t,"TypeAlias")},s.flowParseOpaqueType=function(t,e){return this.expectContextual("type"),t.id=this.flowParseRestrictedIdentifier(!0),this.isRelational("<")?t.typeParameters=this.flowParseTypeParameterDeclaration():t.typeParameters=null,t.supertype=null,this.match(h.colon)&&(t.supertype=this.flowParseTypeInitialiser(h.colon)),t.impltype=null,e||(t.impltype=this.flowParseTypeInitialiser(h.eq)),this.semicolon(),this.finishNode(t,"OpaqueType")},s.flowParseTypeParameter=function(t,e){if(void 0===t&&(t=!0),void 0===e&&(e=!1),!t&&e)throw new Error("Cannot disallow a default value (`allowDefault`) while also requiring it (`requireDefault`).");var s=this.state.start,i=this.startNode(),r=this.flowParseVariance(),a=this.flowParseTypeAnnotatableIdentifier();return i.name=a.name,i.variance=r,i.bound=a.typeAnnotation,this.match(h.eq)?t?(this.eat(h.eq),i.default=this.flowParseType()):this.unexpected():e&&this.unexpected(s,"Type parameter declaration needs a default, since a preceding type parameter declaration has a default."),this.finishNode(i,"TypeParameter")},s.flowParseTypeParameterDeclaration=function(t){void 0===t&&(t=!0);var e=this.state.inType,s=this.startNode();s.params=[],this.state.inType=!0,this.isRelational("<")||this.match(h.jsxTagStart)?this.next():this.unexpected();var i=!1;do{var r=this.flowParseTypeParameter(t,i);s.params.push(r),r.default&&(i=!0),this.isRelational(">")||this.expect(h.comma)}while(!this.isRelational(">"));return this.expectRelational(">"),this.state.inType=e,this.finishNode(s,"TypeParameterDeclaration")},s.flowParseTypeParameterInstantiation=function(){var t=this.startNode(),e=this.state.inType;t.params=[],this.state.inType=!0,this.expectRelational("<");var s=this.state.noAnonFunctionType;for(this.state.noAnonFunctionType=!1;!this.isRelational(">");)t.params.push(this.flowParseType()),this.isRelational(">")||this.expect(h.comma);return this.state.noAnonFunctionType=s,this.expectRelational(">"),this.state.inType=e,this.finishNode(t,"TypeParameterInstantiation")},s.flowParseTypeParameterInstantiationCallOrNew=function(){var t=this.startNode(),e=this.state.inType;for(t.params=[],this.state.inType=!0,this.expectRelational("<");!this.isRelational(">");)t.params.push(this.flowParseTypeOrImplicitInstantiation()),this.isRelational(">")||this.expect(h.comma);return this.expectRelational(">"),this.state.inType=e,this.finishNode(t,"TypeParameterInstantiation")},s.flowParseInterfaceType=function(){var t=this.startNode();if(this.expectContextual("interface"),t.extends=[],this.eat(h._extends))do{t.extends.push(this.flowParseInterfaceExtends())}while(this.eat(h.comma));return t.body=this.flowParseObjectType({allowStatic:!1,allowExact:!1,allowSpread:!1,allowProto:!1,allowInexact:!1}),this.finishNode(t,"InterfaceTypeAnnotation")},s.flowParseObjectPropertyKey=function(){return this.match(h.num)||this.match(h.string)?this.parseExprAtom():this.parseIdentifier(!0)},s.flowParseObjectTypeIndexer=function(t,e,s){return t.static=e,this.lookahead().type===h.colon?(t.id=this.flowParseObjectPropertyKey(),t.key=this.flowParseTypeInitialiser()):(t.id=null,t.key=this.flowParseType()),this.expect(h.bracketR),t.value=this.flowParseTypeInitialiser(),t.variance=s,this.finishNode(t,"ObjectTypeIndexer")},s.flowParseObjectTypeInternalSlot=function(t,e){return t.static=e,t.id=this.flowParseObjectPropertyKey(),this.expect(h.bracketR),this.expect(h.bracketR),this.isRelational("<")||this.match(h.parenL)?(t.method=!0,t.optional=!1,t.value=this.flowParseObjectTypeMethodish(this.startNodeAt(t.start,t.loc.start))):(t.method=!1,this.eat(h.question)&&(t.optional=!0),t.value=this.flowParseTypeInitialiser()),this.finishNode(t,"ObjectTypeInternalSlot")},s.flowParseObjectTypeMethodish=function(t){for(t.params=[],t.rest=null,t.typeParameters=null,this.isRelational("<")&&(t.typeParameters=this.flowParseTypeParameterDeclaration(!1)),this.expect(h.parenL);!this.match(h.parenR)&&!this.match(h.ellipsis);)t.params.push(this.flowParseFunctionTypeParam()),this.match(h.parenR)||this.expect(h.comma);return this.eat(h.ellipsis)&&(t.rest=this.flowParseFunctionTypeParam()),this.expect(h.parenR),t.returnType=this.flowParseTypeInitialiser(),this.finishNode(t,"FunctionTypeAnnotation")},s.flowParseObjectTypeCallProperty=function(t,e){var s=this.startNode();return t.static=e,t.value=this.flowParseObjectTypeMethodish(s),this.finishNode(t,"ObjectTypeCallProperty")},s.flowParseObjectType=function(t){var e=t.allowStatic,s=t.allowExact,i=t.allowSpread,r=t.allowProto,a=t.allowInexact,n=this.state.inType;this.state.inType=!0;var o,p,u=this.startNode();u.callProperties=[],u.properties=[],u.indexers=[],u.internalSlots=[];var c=!1;for(s&&this.match(h.braceBarL)?(this.expect(h.braceBarL),o=h.braceBarR,p=!0):(this.expect(h.braceL),o=h.braceR,p=!1),u.exact=p;!this.match(o);){var l=!1,d=null,f=this.startNode();if(r&&this.isContextual("proto")){var m=this.lookahead();m.type!==h.colon&&m.type!==h.question&&(this.next(),d=this.state.start,e=!1)}if(e&&this.isContextual("static")){var y=this.lookahead();y.type!==h.colon&&y.type!==h.question&&(this.next(),l=!0)}var D=this.flowParseVariance();if(this.eat(h.bracketL))null!=d&&this.unexpected(d),this.eat(h.bracketL)?(D&&this.unexpected(D.start),u.internalSlots.push(this.flowParseObjectTypeInternalSlot(f,l))):u.indexers.push(this.flowParseObjectTypeIndexer(f,l,D));else if(this.match(h.parenL)||this.isRelational("<"))null!=d&&this.unexpected(d),D&&this.unexpected(D.start),u.callProperties.push(this.flowParseObjectTypeCallProperty(f,l));else{var x="init";if(this.isContextual("get")||this.isContextual("set")){var v=this.lookahead();v.type!==h.name&&v.type!==h.string&&v.type!==h.num||(x=this.state.value,this.next())}var P=this.flowParseObjectTypeProperty(f,l,d,D,x,i,a);null===P?c=!0:u.properties.push(P)}this.flowObjectTypeSemicolon()}this.expect(o),i&&(u.inexact=c);var g=this.finishNode(u,"ObjectTypeAnnotation");return this.state.inType=n,g},s.flowParseObjectTypeProperty=function(t,e,s,i,r,a,n){if(this.match(h.ellipsis)){a||this.unexpected(null,"Spread operator cannot appear in class or interface definitions"),null!=s&&this.unexpected(s),i&&this.unexpected(i.start,"Spread properties cannot have variance"),this.expect(h.ellipsis);var o=this.eat(h.comma)||this.eat(h.semi);if(this.match(h.braceR)){if(n)return null;this.unexpected(null,"Explicit inexact syntax is only allowed inside inexact objects")}return this.match(h.braceBarR)&&this.unexpected(null,"Explicit inexact syntax cannot appear inside an explicit exact object type"),o&&this.unexpected(null,"Explicit inexact syntax must appear at the end of an inexact object"),t.argument=this.flowParseType(),this.finishNode(t,"ObjectTypeSpreadProperty")}t.key=this.flowParseObjectPropertyKey(),t.static=e,t.proto=null!=s,t.kind=r;var p=!1;return this.isRelational("<")||this.match(h.parenL)?(t.method=!0,null!=s&&this.unexpected(s),i&&this.unexpected(i.start),t.value=this.flowParseObjectTypeMethodish(this.startNodeAt(t.start,t.loc.start)),"get"!==r&&"set"!==r||this.flowCheckGetterSetterParams(t)):("init"!==r&&this.unexpected(),t.method=!1,this.eat(h.question)&&(p=!0),t.value=this.flowParseTypeInitialiser(),t.variance=i),t.optional=p,this.finishNode(t,"ObjectTypeProperty")},s.flowCheckGetterSetterParams=function(t){var e="get"===t.kind?0:1,s=t.start;t.value.params.length+(t.value.rest?1:0)!==e&&("get"===t.kind?this.raise(s,"getter must not have any formal parameters"):this.raise(s,"setter must have exactly one formal parameter")),"set"===t.kind&&t.value.rest&&this.raise(s,"setter function argument must not be a rest parameter")},s.flowObjectTypeSemicolon=function(){this.eat(h.semi)||this.eat(h.comma)||this.match(h.braceR)||this.match(h.braceBarR)||this.unexpected()},s.flowParseQualifiedTypeIdentifier=function(t,e,s){t=t||this.state.start,e=e||this.state.startLoc;for(var i=s||this.parseIdentifier();this.eat(h.dot);){var r=this.startNodeAt(t,e);r.qualification=i,r.id=this.parseIdentifier(),i=this.finishNode(r,"QualifiedTypeIdentifier")}return i},s.flowParseGenericType=function(t,e,s){var i=this.startNodeAt(t,e);return i.typeParameters=null,i.id=this.flowParseQualifiedTypeIdentifier(t,e,s),this.isRelational("<")&&(i.typeParameters=this.flowParseTypeParameterInstantiation()),this.finishNode(i,"GenericTypeAnnotation")},s.flowParseTypeofType=function(){var t=this.startNode();return this.expect(h._typeof),t.argument=this.flowParsePrimaryType(),this.finishNode(t,"TypeofTypeAnnotation")},s.flowParseTupleType=function(){var t=this.startNode();for(t.types=[],this.expect(h.bracketL);this.state.pos<this.input.length&&!this.match(h.bracketR)&&(t.types.push(this.flowParseType()),!this.match(h.bracketR));)this.expect(h.comma);return this.expect(h.bracketR),this.finishNode(t,"TupleTypeAnnotation")},s.flowParseFunctionTypeParam=function(){var t=null,e=!1,s=null,i=this.startNode(),r=this.lookahead();return r.type===h.colon||r.type===h.question?(t=this.parseIdentifier(),this.eat(h.question)&&(e=!0),s=this.flowParseTypeInitialiser()):s=this.flowParseType(),i.name=t,i.optional=e,i.typeAnnotation=s,this.finishNode(i,"FunctionTypeParam")},s.reinterpretTypeAsFunctionTypeParam=function(t){var e=this.startNodeAt(t.start,t.loc.start);return e.name=null,e.optional=!1,e.typeAnnotation=t,this.finishNode(e,"FunctionTypeParam")},s.flowParseFunctionTypeParams=function(t){void 0===t&&(t=[]);for(var e=null;!this.match(h.parenR)&&!this.match(h.ellipsis);)t.push(this.flowParseFunctionTypeParam()),this.match(h.parenR)||this.expect(h.comma);return this.eat(h.ellipsis)&&(e=this.flowParseFunctionTypeParam()),{params:t,rest:e}},s.flowIdentToTypeAnnotation=function(t,e,s,i){switch(i.name){case"any":return this.finishNode(s,"AnyTypeAnnotation");case"void":return this.finishNode(s,"VoidTypeAnnotation");case"bool":case"boolean":return this.finishNode(s,"BooleanTypeAnnotation");case"mixed":return this.finishNode(s,"MixedTypeAnnotation");case"empty":return this.finishNode(s,"EmptyTypeAnnotation");case"number":return this.finishNode(s,"NumberTypeAnnotation");case"string":return this.finishNode(s,"StringTypeAnnotation");default:return this.checkNotUnderscore(i.name),this.flowParseGenericType(t,e,i)}},s.flowParsePrimaryType=function(){var t,e,s=this.state.start,i=this.state.startLoc,r=this.startNode(),a=!1,n=this.state.noAnonFunctionType;switch(this.state.type){case h.name:return this.isContextual("interface")?this.flowParseInterfaceType():this.flowIdentToTypeAnnotation(s,i,r,this.parseIdentifier());case h.braceL:return this.flowParseObjectType({allowStatic:!1,allowExact:!1,allowSpread:!0,allowProto:!1,allowInexact:!0});case h.braceBarL:return this.flowParseObjectType({allowStatic:!1,allowExact:!0,allowSpread:!0,allowProto:!1,allowInexact:!1});case h.bracketL:return this.flowParseTupleType();case h.relational:if("<"===this.state.value)return r.typeParameters=this.flowParseTypeParameterDeclaration(!1),this.expect(h.parenL),t=this.flowParseFunctionTypeParams(),r.params=t.params,r.rest=t.rest,this.expect(h.parenR),this.expect(h.arrow),r.returnType=this.flowParseType(),this.finishNode(r,"FunctionTypeAnnotation");break;case h.parenL:if(this.next(),!this.match(h.parenR)&&!this.match(h.ellipsis))if(this.match(h.name)){var o=this.lookahead().type;a=o!==h.question&&o!==h.colon}else a=!0;if(a){if(this.state.noAnonFunctionType=!1,e=this.flowParseType(),this.state.noAnonFunctionType=n,this.state.noAnonFunctionType||!(this.match(h.comma)||this.match(h.parenR)&&this.lookahead().type===h.arrow))return this.expect(h.parenR),e;this.eat(h.comma)}return t=e?this.flowParseFunctionTypeParams([this.reinterpretTypeAsFunctionTypeParam(e)]):this.flowParseFunctionTypeParams(),r.params=t.params,r.rest=t.rest,this.expect(h.parenR),this.expect(h.arrow),r.returnType=this.flowParseType(),r.typeParameters=null,this.finishNode(r,"FunctionTypeAnnotation");case h.string:return this.parseLiteral(this.state.value,"StringLiteralTypeAnnotation");case h._true:case h._false:return r.value=this.match(h._true),this.next(),this.finishNode(r,"BooleanLiteralTypeAnnotation");case h.plusMin:if("-"===this.state.value)return this.next(),this.match(h.num)||this.unexpected(null,'Unexpected token, expected "number"'),this.parseLiteral(-this.state.value,"NumberLiteralTypeAnnotation",r.start,r.loc.start);this.unexpected();case h.num:return this.parseLiteral(this.state.value,"NumberLiteralTypeAnnotation");case h._null:return this.next(),this.finishNode(r,"NullLiteralTypeAnnotation");case h._this:return this.next(),this.finishNode(r,"ThisTypeAnnotation");case h.star:return this.next(),this.finishNode(r,"ExistsTypeAnnotation");default:if("typeof"===this.state.type.keyword)return this.flowParseTypeofType()}throw this.unexpected()},s.flowParsePostfixType=function(){for(var t=this.state.start,e=this.state.startLoc,s=this.flowParsePrimaryType();!this.canInsertSemicolon()&&this.match(h.bracketL);){var i=this.startNodeAt(t,e);i.elementType=s,this.expect(h.bracketL),this.expect(h.bracketR),s=this.finishNode(i,"ArrayTypeAnnotation")}return s},s.flowParsePrefixType=function(){var t=this.startNode();return this.eat(h.question)?(t.typeAnnotation=this.flowParsePrefixType(),this.finishNode(t,"NullableTypeAnnotation")):this.flowParsePostfixType()},s.flowParseAnonFunctionWithoutParens=function(){var t=this.flowParsePrefixType();if(!this.state.noAnonFunctionType&&this.eat(h.arrow)){var e=this.startNodeAt(t.start,t.loc.start);return e.params=[this.reinterpretTypeAsFunctionTypeParam(t)],e.rest=null,e.returnType=this.flowParseType(),e.typeParameters=null,this.finishNode(e,"FunctionTypeAnnotation")}return t},s.flowParseIntersectionType=function(){var t=this.startNode();this.eat(h.bitwiseAND);var e=this.flowParseAnonFunctionWithoutParens();for(t.types=[e];this.eat(h.bitwiseAND);)t.types.push(this.flowParseAnonFunctionWithoutParens());return 1===t.types.length?e:this.finishNode(t,"IntersectionTypeAnnotation")},s.flowParseUnionType=function(){var t=this.startNode();this.eat(h.bitwiseOR);var e=this.flowParseIntersectionType();for(t.types=[e];this.eat(h.bitwiseOR);)t.types.push(this.flowParseIntersectionType());return 1===t.types.length?e:this.finishNode(t,"UnionTypeAnnotation")},s.flowParseType=function(){var t=this.state.inType;this.state.inType=!0;var e=this.flowParseUnionType();return this.state.inType=t,this.state.exprAllowed=this.state.exprAllowed||this.state.noAnonFunctionType,e},s.flowParseTypeOrImplicitInstantiation=function(){if(this.state.type===h.name&&"_"===this.state.value){var t=this.state.start,e=this.state.startLoc,s=this.parseIdentifier();return this.flowParseGenericType(t,e,s)}return this.flowParseType()},s.flowParseTypeAnnotation=function(){var t=this.startNode();return t.typeAnnotation=this.flowParseTypeInitialiser(),this.finishNode(t,"TypeAnnotation")},s.flowParseTypeAnnotatableIdentifier=function(t){var e=t?this.parseIdentifier():this.flowParseRestrictedIdentifier();return this.match(h.colon)&&(e.typeAnnotation=this.flowParseTypeAnnotation(),this.finishNode(e,e.type)),e},s.typeCastToParameter=function(t){return t.expression.typeAnnotation=t.typeAnnotation,this.finishNodeAt(t.expression,t.expression.type,t.typeAnnotation.end,t.typeAnnotation.loc.end)},s.flowParseVariance=function(){var t=null;return this.match(h.plusMin)&&(t=this.startNode(),"+"===this.state.value?t.kind="plus":t.kind="minus",this.next(),this.finishNode(t,"Variance")),t},s.parseFunctionBody=function(e,s){var i=this;return s?this.forwardNoArrowParamsConversionAt(e,function(){return t.prototype.parseFunctionBody.call(i,e,!0)}):t.prototype.parseFunctionBody.call(this,e,!1)},s.parseFunctionBodyAndFinish=function(e,s,i){if(!i&&this.match(h.colon)){var r=this.startNode(),a=this.flowParseTypeAndPredicateInitialiser();r.typeAnnotation=a[0],e.predicate=a[1],e.returnType=r.typeAnnotation?this.finishNode(r,"TypeAnnotation"):null}t.prototype.parseFunctionBodyAndFinish.call(this,e,s,i)},s.parseStatement=function(e,s){if(this.state.strict&&this.match(h.name)&&"interface"===this.state.value){var i=this.startNode();return this.next(),this.flowParseInterface(i)}var r=t.prototype.parseStatement.call(this,e,s);return void 0!==this.flowPragma||this.isValidDirective(r)||(this.flowPragma=null),r},s.parseExpressionStatement=function(e,s){if("Identifier"===s.type)if("declare"===s.name){if(this.match(h._class)||this.match(h.name)||this.match(h._function)||this.match(h._var)||this.match(h._export))return this.flowParseDeclare(e)}else if(this.match(h.name)){if("interface"===s.name)return this.flowParseInterface(e);if("type"===s.name)return this.flowParseTypeAlias(e);if("opaque"===s.name)return this.flowParseOpaqueType(e,!1)}return t.prototype.parseExpressionStatement.call(this,e,s)},s.shouldParseExportDeclaration=function(){return this.isContextual("type")||this.isContextual("interface")||this.isContextual("opaque")||t.prototype.shouldParseExportDeclaration.call(this)},s.isExportDefaultSpecifier=function(){return(!this.match(h.name)||"type"!==this.state.value&&"interface"!==this.state.value&&"opaque"!=this.state.value)&&t.prototype.isExportDefaultSpecifier.call(this)},s.parseConditional=function(e,s,i,r,a){var n=this;if(!this.match(h.question))return e;if(a){var o=this.state.clone();try{return t.prototype.parseConditional.call(this,e,s,i,r)}catch(t){if(t instanceof SyntaxError)return this.state=o,a.start=t.pos||this.state.start,e;throw t}}this.expect(h.question);var p=this.state.clone(),u=this.state.noArrowAt,c=this.startNodeAt(i,r),l=this.tryParseConditionalConsequent(),d=l.consequent,f=l.failed,m=this.getArrowLikeExpressions(d),y=m[0],D=m[1];if(f||D.length>0){var x=u.concat();if(D.length>0){this.state=p,this.state.noArrowAt=x;for(var v=0;v<D.length;v++)x.push(D[v].start);var P=this.tryParseConditionalConsequent();d=P.consequent,f=P.failed;var g=this.getArrowLikeExpressions(d);y=g[0],D=g[1]}if(f&&y.length>1&&this.raise(p.start,"Ambiguous expression: wrap the arrow functions in parentheses to disambiguate."),f&&1===y.length){this.state=p,this.state.noArrowAt=x.concat(y[0].start);var b=this.tryParseConditionalConsequent();d=b.consequent,f=b.failed}this.getArrowLikeExpressions(d,!0)}return this.state.noArrowAt=u,this.expect(h.colon),c.test=e,c.consequent=d,c.alternate=this.forwardNoArrowParamsConversionAt(c,function(){return n.parseMaybeAssign(s,void 0,void 0,void 0)}),this.finishNode(c,"ConditionalExpression")},s.tryParseConditionalConsequent=function(){this.state.noArrowParamsConversionAt.push(this.state.start);var t=this.parseMaybeAssign(),e=!this.match(h.colon);return this.state.noArrowParamsConversionAt.pop(),{consequent:t,failed:e}},s.getArrowLikeExpressions=function(e,s){for(var i=this,r=[e],a=[];0!==r.length;){var n=r.pop();"ArrowFunctionExpression"===n.type?(n.typeParameters||!n.returnType?(this.toAssignableList(n.params,!0,"arrow function parameters"),t.prototype.checkFunctionNameAndParams.call(this,n,!0)):a.push(n),r.push(n.body)):"ConditionalExpression"===n.type&&(r.push(n.consequent),r.push(n.alternate))}if(s){for(var o=0;o<a.length;o++)this.toAssignableList(e.params,!0,"arrow function parameters");return[a,[]]}return function(t,e){for(var s=[],i=[],r=0;r<t.length;r++)(e(t[r],r,t)?s:i).push(t[r]);return[s,i]}(a,function(t){try{return i.toAssignableList(t.params,!0,"arrow function parameters"),!0}catch(t){return!1}})},s.forwardNoArrowParamsConversionAt=function(t,e){var s;return-1!==this.state.noArrowParamsConversionAt.indexOf(t.start)?(this.state.noArrowParamsConversionAt.push(this.state.start),s=e(),this.state.noArrowParamsConversionAt.pop()):s=e(),s},s.parseParenItem=function(e,s,i){if(e=t.prototype.parseParenItem.call(this,e,s,i),this.eat(h.question)&&(e.optional=!0),this.match(h.colon)){var r=this.startNodeAt(s,i);return r.expression=e,r.typeAnnotation=this.flowParseTypeAnnotation(),this.finishNode(r,"TypeCastExpression")}return e},s.assertModuleNodeAllowed=function(e){"ImportDeclaration"===e.type&&("type"===e.importKind||"typeof"===e.importKind)||"ExportNamedDeclaration"===e.type&&"type"===e.exportKind||"ExportAllDeclaration"===e.type&&"type"===e.exportKind||t.prototype.assertModuleNodeAllowed.call(this,e)},s.parseExport=function(e){return"ExportNamedDeclaration"!==(e=t.prototype.parseExport.call(this,e)).type&&"ExportAllDeclaration"!==e.type||(e.exportKind=e.exportKind||"value"),e},s.parseExportDeclaration=function(e){if(this.isContextual("type")){e.exportKind="type";var s=this.startNode();return this.next(),this.match(h.braceL)?(e.specifiers=this.parseExportSpecifiers(),this.parseExportFrom(e),null):this.flowParseTypeAlias(s)}if(this.isContextual("opaque")){e.exportKind="type";var i=this.startNode();return this.next(),this.flowParseOpaqueType(i,!1)}if(this.isContextual("interface")){e.exportKind="type";var r=this.startNode();return this.next(),this.flowParseInterface(r)}return t.prototype.parseExportDeclaration.call(this,e)},s.shouldParseExportStar=function(){return t.prototype.shouldParseExportStar.call(this)||this.isContextual("type")&&this.lookahead().type===h.star},s.parseExportStar=function(e){return this.eatContextual("type")&&(e.exportKind="type"),t.prototype.parseExportStar.call(this,e)},s.parseExportNamespace=function(e){return"type"===e.exportKind&&this.unexpected(),t.prototype.parseExportNamespace.call(this,e)},s.parseClassId=function(e,s,i){t.prototype.parseClassId.call(this,e,s,i),this.isRelational("<")&&(e.typeParameters=this.flowParseTypeParameterDeclaration())},s.isKeyword=function(e){return(!this.state.inType||"void"!==e)&&t.prototype.isKeyword.call(this,e)},s.readToken=function(e){var s=this.input.charCodeAt(this.state.pos+1);return!this.state.inType||62!==e&&60!==e?function(t,e){return 64===t&&64===e}(e,s)?(this.state.isIterator=!0,t.prototype.readWord.call(this)):t.prototype.readToken.call(this,e):this.finishOp(h.relational,1)},s.toAssignable=function(e,s,i){return"TypeCastExpression"===e.type?t.prototype.toAssignable.call(this,this.typeCastToParameter(e),s,i):t.prototype.toAssignable.call(this,e,s,i)},s.toAssignableList=function(e,s,i){for(var r=0;r<e.length;r++){var a=e[r];a&&"TypeCastExpression"===a.type&&(e[r]=this.typeCastToParameter(a))}return t.prototype.toAssignableList.call(this,e,s,i)},s.toReferencedList=function(t,e){for(var s=0;s<t.length;s++){var i=t[s];!i||"TypeCastExpression"!==i.type||i.extra&&i.extra.parenthesized||!(t.length>1)&&e||this.raise(i.typeAnnotation.start,"The type cast expression is expected to be wrapped with parenthesis")}return t},s.checkLVal=function(e,s,i,r){if("TypeCastExpression"!==e.type)return t.prototype.checkLVal.call(this,e,s,i,r)},s.parseClassProperty=function(e){return this.match(h.colon)&&(e.typeAnnotation=this.flowParseTypeAnnotation()),t.prototype.parseClassProperty.call(this,e)},s.parseClassPrivateProperty=function(e){return this.match(h.colon)&&(e.typeAnnotation=this.flowParseTypeAnnotation()),t.prototype.parseClassPrivateProperty.call(this,e)},s.isClassMethod=function(){return this.isRelational("<")||t.prototype.isClassMethod.call(this)},s.isClassProperty=function(){return this.match(h.colon)||t.prototype.isClassProperty.call(this)},s.isNonstaticConstructor=function(e){return!this.match(h.colon)&&t.prototype.isNonstaticConstructor.call(this,e)},s.pushClassMethod=function(e,s,i,r,a){s.variance&&this.unexpected(s.variance.start),delete s.variance,this.isRelational("<")&&(s.typeParameters=this.flowParseTypeParameterDeclaration(!1)),t.prototype.pushClassMethod.call(this,e,s,i,r,a)},s.pushClassPrivateMethod=function(e,s,i,r){s.variance&&this.unexpected(s.variance.start),delete s.variance,this.isRelational("<")&&(s.typeParameters=this.flowParseTypeParameterDeclaration()),t.prototype.pushClassPrivateMethod.call(this,e,s,i,r)},s.parseClassSuper=function(e){if(t.prototype.parseClassSuper.call(this,e),e.superClass&&this.isRelational("<")&&(e.superTypeParameters=this.flowParseTypeParameterInstantiation()),this.isContextual("implements")){this.next();var s=e.implements=[];do{var i=this.startNode();i.id=this.flowParseRestrictedIdentifier(!0),this.isRelational("<")?i.typeParameters=this.flowParseTypeParameterInstantiation():i.typeParameters=null,s.push(this.finishNode(i,"ClassImplements"))}while(this.eat(h.comma))}},s.parsePropertyName=function(e){var s=this.flowParseVariance(),i=t.prototype.parsePropertyName.call(this,e);return e.variance=s,i},s.parseObjPropValue=function(e,s,i,r,a,n,o,p){var u;e.variance&&this.unexpected(e.variance.start),delete e.variance,this.isRelational("<")&&(u=this.flowParseTypeParameterDeclaration(!1),this.match(h.parenL)||this.unexpected()),t.prototype.parseObjPropValue.call(this,e,s,i,r,a,n,o,p),u&&((e.value||e).typeParameters=u)},s.parseAssignableListItemTypes=function(t){if(this.eat(h.question)){if("Identifier"!==t.type)throw this.raise(t.start,"A binding pattern parameter cannot be optional in an implementation signature.");t.optional=!0}return this.match(h.colon)&&(t.typeAnnotation=this.flowParseTypeAnnotation()),this.finishNode(t,t.type),t},s.parseMaybeDefault=function(e,s,i){var r=t.prototype.parseMaybeDefault.call(this,e,s,i);return"AssignmentPattern"===r.type&&r.typeAnnotation&&r.right.start<r.typeAnnotation.start&&this.raise(r.typeAnnotation.start,"Type annotations must come before default assignments, e.g. instead of `age = 25: number` use `age: number = 25`"),r},s.shouldParseDefaultImport=function(e){return S(e)?I(this.state):t.prototype.shouldParseDefaultImport.call(this,e)},s.parseImportSpecifierLocal=function(t,e,s,i){e.local=S(t)?this.flowParseRestrictedIdentifier(!0):this.parseIdentifier(),this.checkLVal(e.local,!0,void 0,i),t.specifiers.push(this.finishNode(e,s))},s.parseImportSpecifiers=function(e){e.importKind="value";var s=null;if(this.match(h._typeof)?s="typeof":this.isContextual("type")&&(s="type"),s){var i=this.lookahead();"type"===s&&i.type===h.star&&this.unexpected(i.start),(I(i)||i.type===h.braceL||i.type===h.star)&&(this.next(),e.importKind=s)}t.prototype.parseImportSpecifiers.call(this,e)},s.parseImportSpecifier=function(t){var e=this.startNode(),s=this.state.start,i=this.parseIdentifier(!0),r=null;"type"===i.name?r="type":"typeof"===i.name&&(r="typeof");var a=!1;if(this.isContextual("as")&&!this.isLookaheadContextual("as")){var n=this.parseIdentifier(!0);null===r||this.match(h.name)||this.state.type.keyword?(e.imported=i,e.importKind=null,e.local=this.parseIdentifier()):(e.imported=n,e.importKind=r,e.local=n.__clone())}else null!==r&&(this.match(h.name)||this.state.type.keyword)?(e.imported=this.parseIdentifier(!0),e.importKind=r,this.eatContextual("as")?e.local=this.parseIdentifier():(a=!0,e.local=e.imported.__clone())):(a=!0,e.imported=i,e.importKind=null,e.local=e.imported.__clone());var o=S(t),p=S(e);o&&p&&this.raise(s,"The `type` and `typeof` keywords on named imports can only be used on regular `import` statements. It cannot be used with `import type` or `import typeof` statements"),(o||p)&&this.checkReservedType(e.local.name,e.local.start),!a||o||p||this.checkReservedWord(e.local.name,e.start,!0,!0),this.checkLVal(e.local,!0,void 0,"import specifier"),t.specifiers.push(this.finishNode(e,"ImportSpecifier"))},s.parseFunctionParams=function(e){var s=e.kind;"get"!==s&&"set"!==s&&this.isRelational("<")&&(e.typeParameters=this.flowParseTypeParameterDeclaration(!1)),t.prototype.parseFunctionParams.call(this,e)},s.parseVarHead=function(e){t.prototype.parseVarHead.call(this,e),this.match(h.colon)&&(e.id.typeAnnotation=this.flowParseTypeAnnotation(),this.finishNode(e.id,e.id.type))},s.parseAsyncArrowFromCallExpression=function(e,s){if(this.match(h.colon)){var i=this.state.noAnonFunctionType;this.state.noAnonFunctionType=!0,e.returnType=this.flowParseTypeAnnotation(),this.state.noAnonFunctionType=i}return t.prototype.parseAsyncArrowFromCallExpression.call(this,e,s)},s.shouldParseAsyncArrow=function(){return this.match(h.colon)||t.prototype.shouldParseAsyncArrow.call(this)},s.parseMaybeAssign=function(e,s,i,r){var a=this,n=null;if(this.hasPlugin("jsx")&&(this.match(h.jsxTagStart)||this.isRelational("<"))){var o=this.state.clone();try{return t.prototype.parseMaybeAssign.call(this,e,s,i,r)}catch(t){if(!(t instanceof SyntaxError))throw t;this.state=o;var p=this.state.context.length;this.state.context[p-1]===D.j_oTag&&(this.state.context.length-=2),n=t}}if(null!=n||this.isRelational("<")){var u,c;try{c=this.flowParseTypeParameterDeclaration(),(u=this.forwardNoArrowParamsConversionAt(c,function(){return t.prototype.parseMaybeAssign.call(a,e,s,i,r)})).typeParameters=c,this.resetStartLocationFromNode(u,c)}catch(t){throw n||t}if("ArrowFunctionExpression"===u.type)return u;if(null!=n)throw n;this.raise(c.start,"Expected an arrow function after this type parameter declaration")}return t.prototype.parseMaybeAssign.call(this,e,s,i,r)},s.parseArrow=function(e){if(this.match(h.colon)){var s=this.state.clone();try{var i=this.state.noAnonFunctionType;this.state.noAnonFunctionType=!0;var r=this.startNode(),a=this.flowParseTypeAndPredicateInitialiser();r.typeAnnotation=a[0],e.predicate=a[1],this.state.noAnonFunctionType=i,this.canInsertSemicolon()&&this.unexpected(),this.match(h.arrow)||this.unexpected(),e.returnType=r.typeAnnotation?this.finishNode(r,"TypeAnnotation"):null}catch(t){if(!(t instanceof SyntaxError))throw t;this.state=s}}return t.prototype.parseArrow.call(this,e)},s.shouldParseArrow=function(){return this.match(h.colon)||t.prototype.shouldParseArrow.call(this)},s.setArrowFunctionParameters=function(e,s){-1!==this.state.noArrowParamsConversionAt.indexOf(e.start)?e.params=s:t.prototype.setArrowFunctionParameters.call(this,e,s)},s.checkFunctionNameAndParams=function(e,s){if(!s||-1===this.state.noArrowParamsConversionAt.indexOf(e.start))return t.prototype.checkFunctionNameAndParams.call(this,e,s)},s.parseParenAndDistinguishExpression=function(e){return t.prototype.parseParenAndDistinguishExpression.call(this,e&&-1===this.state.noArrowAt.indexOf(this.state.start))},s.parseSubscripts=function(e,s,i,r){if("Identifier"===e.type&&"async"===e.name&&-1!==this.state.noArrowAt.indexOf(s)){this.next();var a=this.startNodeAt(s,i);a.callee=e,a.arguments=this.parseCallExpressionArguments(h.parenR,!1),e=this.finishNode(a,"CallExpression")}else if("Identifier"===e.type&&"async"===e.name&&this.isRelational("<")){var n,o=this.state.clone();try{var p=this.parseAsyncArrowWithTypeParameters(s,i);if(p)return p}catch(t){n=t}this.state=o;try{return t.prototype.parseSubscripts.call(this,e,s,i,r)}catch(t){throw n||t}}return t.prototype.parseSubscripts.call(this,e,s,i,r)},s.parseSubscript=function(e,s,i,r,a){if(this.match(h.questionDot)&&this.isLookaheadRelational("<")){if(this.expectPlugin("optionalChaining"),a.optionalChainMember=!0,r)return a.stop=!0,e;this.next();var n=this.startNodeAt(s,i);return n.callee=e,n.typeArguments=this.flowParseTypeParameterInstantiation(),this.expect(h.parenL),n.arguments=this.parseCallExpressionArguments(h.parenR,!1),n.optional=!0,this.finishNode(n,"OptionalCallExpression")}if(!r&&this.shouldParseTypes()&&this.isRelational("<")){var o=this.startNodeAt(s,i);o.callee=e;var p=this.state.clone();try{return o.typeArguments=this.flowParseTypeParameterInstantiationCallOrNew(),this.expect(h.parenL),o.arguments=this.parseCallExpressionArguments(h.parenR,!1),a.optionalChainMember?(o.optional=!1,this.finishNode(o,"OptionalCallExpression")):this.finishNode(o,"CallExpression")}catch(t){if(!(t instanceof SyntaxError))throw t;this.state=p}}return t.prototype.parseSubscript.call(this,e,s,i,r,a)},s.parseNewArguments=function(e){var s=null;if(this.shouldParseTypes()&&this.isRelational("<")){var i=this.state.clone();try{s=this.flowParseTypeParameterInstantiationCallOrNew()}catch(t){if(!(t instanceof SyntaxError))throw t;this.state=i}}e.typeArguments=s,t.prototype.parseNewArguments.call(this,e)},s.parseAsyncArrowWithTypeParameters=function(t,e){var s=this.startNodeAt(t,e);if(this.parseFunctionParams(s),this.parseArrow(s))return this.parseArrowExpression(s,void 0,!0)},s.readToken_mult_modulo=function(e){var s=this.input.charCodeAt(this.state.pos+1);if(42===e&&47===s&&this.state.hasFlowComment)return this.state.hasFlowComment=!1,this.state.pos+=2,void this.nextToken();t.prototype.readToken_mult_modulo.call(this,e)},s.skipBlockComment=function(){return this.hasPlugin("flow")&&this.hasPlugin("flowComments")&&this.skipFlowComment()?(this.hasFlowCommentCompletion(),this.state.pos+=this.skipFlowComment(),void(this.state.hasFlowComment=!0)):this.hasPlugin("flow")&&this.state.hasFlowComment?(-1===(e=this.input.indexOf("*-/",this.state.pos+=2))&&this.raise(this.state.pos-2,"Unterminated comment"),void(this.state.pos=e+3)):void t.prototype.skipBlockComment.call(this);var e},s.skipFlowComment=function(){var t=this.input.charCodeAt(this.state.pos+2),e=this.input.charCodeAt(this.state.pos+3);return 58===t&&58===e?4:"flow-include"===this.input.slice(this.state.pos+2,14)?14:58===t&&58!==e&&2},s.hasFlowCommentCompletion=function(){-1===this.input.indexOf("*/",this.state.pos)&&this.raise(this.state.pos,"Unterminated comment")},e}(t)},typescript:function(t){return function(t){function e(){return t.apply(this,arguments)||this}i(e,t);var s=e.prototype;return s.tsIsIdentifier=function(){return this.match(h.name)},s.tsNextTokenCanFollowModifier=function(){return this.next(),!(this.hasPrecedingLineBreak()||this.match(h.parenL)||this.match(h.parenR)||this.match(h.colon)||this.match(h.eq)||this.match(h.question))},s.tsParseModifier=function(t){if(this.match(h.name)){var e=this.state.value;return-1!==t.indexOf(e)&&this.tsTryParse(this.tsNextTokenCanFollowModifier.bind(this))?e:void 0}},s.tsIsListTerminator=function(t){switch(t){case"EnumMembers":case"TypeMembers":return this.match(h.braceR);case"HeritageClauseElement":return this.match(h.braceL);case"TupleElementTypes":return this.match(h.bracketR);case"TypeParametersOrArguments":return this.isRelational(">")}throw new Error("Unreachable")},s.tsParseList=function(t,e){for(var s=[];!this.tsIsListTerminator(t);)s.push(e());return s},s.tsParseDelimitedList=function(t,e){return st(this.tsParseDelimitedListWorker(t,e,!0))},s.tsTryParseDelimitedList=function(t,e){return this.tsParseDelimitedListWorker(t,e,!1)},s.tsParseDelimitedListWorker=function(t,e,s){for(var i=[];!this.tsIsListTerminator(t);){var r=e();if(null==r)return;if(i.push(r),!this.eat(h.comma)){if(this.tsIsListTerminator(t))break;return void(s&&this.expect(h.comma))}}return i},s.tsParseBracketedList=function(t,e,s,i){i||(s?this.expect(h.bracketL):this.expectRelational("<"));var r=this.tsParseDelimitedList(t,e);return s?this.expect(h.bracketR):this.expectRelational(">"),r},s.tsParseEntityName=function(t){for(var e=this.parseIdentifier();this.eat(h.dot);){var s=this.startNodeAtNode(e);s.left=e,s.right=this.parseIdentifier(t),e=this.finishNode(s,"TSQualifiedName")}return e},s.tsParseTypeReference=function(){var t=this.startNode();return t.typeName=this.tsParseEntityName(!1),!this.hasPrecedingLineBreak()&&this.isRelational("<")&&(t.typeParameters=this.tsParseTypeArguments()),this.finishNode(t,"TSTypeReference")},s.tsParseThisTypePredicate=function(t){this.next();var e=this.startNode();return e.parameterName=t,e.typeAnnotation=this.tsParseTypeAnnotation(!1),this.finishNode(e,"TSTypePredicate")},s.tsParseThisTypeNode=function(){var t=this.startNode();return this.next(),this.finishNode(t,"TSThisType")},s.tsParseTypeQuery=function(){var t=this.startNode();return this.expect(h._typeof),t.exprName=this.tsParseEntityName(!0),this.finishNode(t,"TSTypeQuery")},s.tsParseTypeParameter=function(){var t=this.startNode();return t.name=this.parseIdentifierName(t.start),t.constraint=this.tsEatThenParseType(h._extends),t.default=this.tsEatThenParseType(h.eq),this.finishNode(t,"TSTypeParameter")},s.tsTryParseTypeParameters=function(){if(this.isRelational("<"))return this.tsParseTypeParameters()},s.tsParseTypeParameters=function(){var t=this.startNode();return this.isRelational("<")||this.match(h.jsxTagStart)?this.next():this.unexpected(),t.params=this.tsParseBracketedList("TypeParametersOrArguments",this.tsParseTypeParameter.bind(this),!1,!0),this.finishNode(t,"TSTypeParameterDeclaration")},s.tsFillSignature=function(t,e){var s=t===h.arrow;e.typeParameters=this.tsTryParseTypeParameters(),this.expect(h.parenL),e.parameters=this.tsParseBindingListForSignature(),s?e.typeAnnotation=this.tsParseTypeOrTypePredicateAnnotation(t):this.match(t)&&(e.typeAnnotation=this.tsParseTypeOrTypePredicateAnnotation(t))},s.tsParseBindingListForSignature=function(){var t=this;return this.parseBindingList(h.parenR).map(function(e){if("Identifier"!==e.type&&"RestElement"!==e.type&&"ObjectPattern"!==e.type)throw t.unexpected(e.start,"Name in a signature must be an Identifier or ObjectPattern, instead got "+e.type);return e})},s.tsParseTypeMemberSemicolon=function(){this.eat(h.comma)||this.semicolon()},s.tsParseSignatureMember=function(t){var e=this.startNode();return"TSConstructSignatureDeclaration"===t&&this.expect(h._new),this.tsFillSignature(h.colon,e),this.tsParseTypeMemberSemicolon(),this.finishNode(e,t)},s.tsIsUnambiguouslyIndexSignature=function(){return this.next(),this.eat(h.name)&&this.match(h.colon)},s.tsTryParseIndexSignature=function(t){if(this.match(h.bracketL)&&this.tsLookAhead(this.tsIsUnambiguouslyIndexSignature.bind(this))){this.expect(h.bracketL);var e=this.parseIdentifier();this.expect(h.colon),e.typeAnnotation=this.tsParseTypeAnnotation(!1),this.expect(h.bracketR),t.parameters=[e];var s=this.tsTryParseTypeAnnotation();return s&&(t.typeAnnotation=s),this.tsParseTypeMemberSemicolon(),this.finishNode(t,"TSIndexSignature")}},s.tsParsePropertyOrMethodSignature=function(t,e){this.parsePropertyName(t),this.eat(h.question)&&(t.optional=!0);var s=t;if(e||!this.match(h.parenL)&&!this.isRelational("<")){var i=s;e&&(i.readonly=!0);var r=this.tsTryParseTypeAnnotation();return r&&(i.typeAnnotation=r),this.tsParseTypeMemberSemicolon(),this.finishNode(i,"TSPropertySignature")}var a=s;return this.tsFillSignature(h.colon,a),this.tsParseTypeMemberSemicolon(),this.finishNode(a,"TSMethodSignature")},s.tsParseTypeMember=function(){if(this.match(h.parenL)||this.isRelational("<"))return this.tsParseSignatureMember("TSCallSignatureDeclaration");if(this.match(h._new)&&this.tsLookAhead(this.tsIsStartOfConstructSignature.bind(this)))return this.tsParseSignatureMember("TSConstructSignatureDeclaration");var t=this.startNode(),e=!!this.tsParseModifier(["readonly"]),s=this.tsTryParseIndexSignature(t);return s?(e&&(t.readonly=!0),s):this.tsParsePropertyOrMethodSignature(t,e)},s.tsIsStartOfConstructSignature=function(){return this.next(),this.match(h.parenL)||this.isRelational("<")},s.tsParseTypeLiteral=function(){var t=this.startNode();return t.members=this.tsParseObjectTypeMembers(),this.finishNode(t,"TSTypeLiteral")},s.tsParseObjectTypeMembers=function(){this.expect(h.braceL);var t=this.tsParseList("TypeMembers",this.tsParseTypeMember.bind(this));return this.expect(h.braceR),t},s.tsIsStartOfMappedType=function(){return this.next(),this.eat(h.plusMin)?this.isContextual("readonly"):(this.isContextual("readonly")&&this.next(),!!this.match(h.bracketL)&&(this.next(),!!this.tsIsIdentifier()&&(this.next(),this.match(h._in))))},s.tsParseMappedTypeParameter=function(){var t=this.startNode();return t.name=this.parseIdentifierName(t.start),t.constraint=this.tsExpectThenParseType(h._in),this.finishNode(t,"TSTypeParameter")},s.tsParseMappedType=function(){var t=this.startNode();return this.expect(h.braceL),this.match(h.plusMin)?(t.readonly=this.state.value,this.next(),this.expectContextual("readonly")):this.eatContextual("readonly")&&(t.readonly=!0),this.expect(h.bracketL),t.typeParameter=this.tsParseMappedTypeParameter(),this.expect(h.bracketR),this.match(h.plusMin)?(t.optional=this.state.value,this.next(),this.expect(h.question)):this.eat(h.question)&&(t.optional=!0),t.typeAnnotation=this.tsTryParseType(),this.semicolon(),this.expect(h.braceR),this.finishNode(t,"TSMappedType")},s.tsParseTupleType=function(){var t=this,e=this.startNode();e.elementTypes=this.tsParseBracketedList("TupleElementTypes",this.tsParseTupleElementType.bind(this),!0,!1);var s=!1;return e.elementTypes.forEach(function(i,r){"TSRestType"===i.type?r!==e.elementTypes.length-1&&t.raise(i.start,"A rest element must be last in a tuple type."):"TSOptionalType"===i.type?s=!0:s&&t.raise(i.start,"A required element cannot follow an optional element.")}),this.finishNode(e,"TSTupleType")},s.tsParseTupleElementType=function(){if(this.match(h.ellipsis)){var t=this.startNode();return this.next(),t.typeAnnotation=this.tsParseType(),this.finishNode(t,"TSRestType")}var e=this.tsParseType();if(this.eat(h.question)){var s=this.startNodeAtNode(e);return s.typeAnnotation=e,this.finishNode(s,"TSOptionalType")}return e},s.tsParseParenthesizedType=function(){var t=this.startNode();return this.expect(h.parenL),t.typeAnnotation=this.tsParseType(),this.expect(h.parenR),this.finishNode(t,"TSParenthesizedType")},s.tsParseFunctionOrConstructorType=function(t){var e=this.startNode();return"TSConstructorType"===t&&this.expect(h._new),this.tsFillSignature(h.arrow,e),this.finishNode(e,t)},s.tsParseLiteralTypeNode=function(){var t=this,e=this.startNode();return e.literal=function(){switch(t.state.type){case h.num:return t.parseLiteral(t.state.value,"NumericLiteral");case h.string:return t.parseLiteral(t.state.value,"StringLiteral");case h._true:case h._false:return t.parseBooleanLiteral();default:throw t.unexpected()}}(),this.finishNode(e,"TSLiteralType")},s.tsParseNonArrayType=function(){switch(this.state.type){case h.name:case h._void:case h._null:var t=this.match(h._void)?"TSVoidKeyword":this.match(h._null)?"TSNullKeyword":function(t){switch(t){case"any":return"TSAnyKeyword";case"boolean":return"TSBooleanKeyword";case"never":return"TSNeverKeyword";case"number":return"TSNumberKeyword";case"object":return"TSObjectKeyword";case"string":return"TSStringKeyword";case"symbol":return"TSSymbolKeyword";case"undefined":return"TSUndefinedKeyword";case"unknown":return"TSUnknownKeyword";default:return}}(this.state.value);if(void 0!==t&&this.lookahead().type!==h.dot){var e=this.startNode();return this.next(),this.finishNode(e,t)}return this.tsParseTypeReference();case h.string:case h.num:case h._true:case h._false:return this.tsParseLiteralTypeNode();case h.plusMin:if("-"===this.state.value){var s=this.startNode();if(this.next(),!this.match(h.num))throw this.unexpected();return s.literal=this.parseLiteral(-this.state.value,"NumericLiteral",s.start,s.loc.start),this.finishNode(s,"TSLiteralType")}break;case h._this:var i=this.tsParseThisTypeNode();return this.isContextual("is")&&!this.hasPrecedingLineBreak()?this.tsParseThisTypePredicate(i):i;case h._typeof:return this.tsParseTypeQuery();case h.braceL:return this.tsLookAhead(this.tsIsStartOfMappedType.bind(this))?this.tsParseMappedType():this.tsParseTypeLiteral();case h.bracketL:return this.tsParseTupleType();case h.parenL:return this.tsParseParenthesizedType()}throw this.unexpected()},s.tsParseArrayTypeOrHigher=function(){for(var t=this.tsParseNonArrayType();!this.hasPrecedingLineBreak()&&this.eat(h.bracketL);)if(this.match(h.bracketR)){var e=this.startNodeAtNode(t);e.elementType=t,this.expect(h.bracketR),t=this.finishNode(e,"TSArrayType")}else{var s=this.startNodeAtNode(t);s.objectType=t,s.indexType=this.tsParseType(),this.expect(h.bracketR),t=this.finishNode(s,"TSIndexedAccessType")}return t},s.tsParseTypeOperator=function(t){var e=this.startNode();return this.expectContextual(t),e.operator=t,e.typeAnnotation=this.tsParseTypeOperatorOrHigher(),this.finishNode(e,"TSTypeOperator")},s.tsParseInferType=function(){var t=this.startNode();this.expectContextual("infer");var e=this.startNode();return e.name=this.parseIdentifierName(e.start),t.typeParameter=this.finishNode(e,"TSTypeParameter"),this.finishNode(t,"TSInferType")},s.tsParseTypeOperatorOrHigher=function(){var t=this,e=["keyof","unique"].find(function(e){return t.isContextual(e)});return e?this.tsParseTypeOperator(e):this.isContextual("infer")?this.tsParseInferType():this.tsParseArrayTypeOrHigher()},s.tsParseUnionOrIntersectionType=function(t,e,s){this.eat(s);var i=e();if(this.match(s)){for(var r=[i];this.eat(s);)r.push(e());var a=this.startNodeAtNode(i);a.types=r,i=this.finishNode(a,t)}return i},s.tsParseIntersectionTypeOrHigher=function(){return this.tsParseUnionOrIntersectionType("TSIntersectionType",this.tsParseTypeOperatorOrHigher.bind(this),h.bitwiseAND)},s.tsParseUnionTypeOrHigher=function(){return this.tsParseUnionOrIntersectionType("TSUnionType",this.tsParseIntersectionTypeOrHigher.bind(this),h.bitwiseOR)},s.tsIsStartOfFunctionType=function(){return!!this.isRelational("<")||this.match(h.parenL)&&this.tsLookAhead(this.tsIsUnambiguouslyStartOfFunctionType.bind(this))},s.tsSkipParameterStart=function(){if(this.match(h.name)||this.match(h._this))return this.next(),!0;if(this.match(h.braceL)){var t=1;for(this.next();t>0;)this.match(h.braceL)?++t:this.match(h.braceR)&&--t,this.next();return!0}return!1},s.tsIsUnambiguouslyStartOfFunctionType=function(){if(this.next(),this.match(h.parenR)||this.match(h.ellipsis))return!0;if(this.tsSkipParameterStart()){if(this.match(h.colon)||this.match(h.comma)||this.match(h.question)||this.match(h.eq))return!0;if(this.match(h.parenR)&&(this.next(),this.match(h.arrow)))return!0}return!1},s.tsParseTypeOrTypePredicateAnnotation=function(t){var e=this;return this.tsInType(function(){var s=e.startNode();e.expect(t);var i=e.tsIsIdentifier()&&e.tsTryParse(e.tsParseTypePredicatePrefix.bind(e));if(!i)return e.tsParseTypeAnnotation(!1,s);var r=e.tsParseTypeAnnotation(!1),a=e.startNodeAtNode(i);return a.parameterName=i,a.typeAnnotation=r,s.typeAnnotation=e.finishNode(a,"TSTypePredicate"),e.finishNode(s,"TSTypeAnnotation")})},s.tsTryParseTypeOrTypePredicateAnnotation=function(){return this.match(h.colon)?this.tsParseTypeOrTypePredicateAnnotation(h.colon):void 0},s.tsTryParseTypeAnnotation=function(){return this.match(h.colon)?this.tsParseTypeAnnotation():void 0},s.tsTryParseType=function(){return this.tsEatThenParseType(h.colon)},s.tsParseTypePredicatePrefix=function(){var t=this.parseIdentifier();if(this.isContextual("is")&&!this.hasPrecedingLineBreak())return this.next(),t},s.tsParseTypeAnnotation=function(t,e){var s=this;return void 0===t&&(t=!0),void 0===e&&(e=this.startNode()),this.tsInType(function(){t&&s.expect(h.colon),e.typeAnnotation=s.tsParseType()}),this.finishNode(e,"TSTypeAnnotation")},s.tsParseType=function(){it(this.state.inType);var t=this.tsParseNonConditionalType();if(this.hasPrecedingLineBreak()||!this.eat(h._extends))return t;var e=this.startNodeAtNode(t);return e.checkType=t,e.extendsType=this.tsParseNonConditionalType(),this.expect(h.question),e.trueType=this.tsParseType(),this.expect(h.colon),e.falseType=this.tsParseType(),this.finishNode(e,"TSConditionalType")},s.tsParseNonConditionalType=function(){return this.tsIsStartOfFunctionType()?this.tsParseFunctionOrConstructorType("TSFunctionType"):this.match(h._new)?this.tsParseFunctionOrConstructorType("TSConstructorType"):this.tsParseUnionTypeOrHigher()},s.tsParseTypeAssertion=function(){var t=this,e=this.startNode();return e.typeAnnotation=this.tsInType(function(){return t.tsParseType()}),this.expectRelational(">"),e.expression=this.parseMaybeUnary(),this.finishNode(e,"TSTypeAssertion")},s.tsParseHeritageClause=function(){return this.tsParseDelimitedList("HeritageClauseElement",this.tsParseExpressionWithTypeArguments.bind(this))},s.tsParseExpressionWithTypeArguments=function(){var t=this.startNode();return t.expression=this.tsParseEntityName(!1),this.isRelational("<")&&(t.typeParameters=this.tsParseTypeArguments()),this.finishNode(t,"TSExpressionWithTypeArguments")},s.tsParseInterfaceDeclaration=function(t){t.id=this.parseIdentifier(),t.typeParameters=this.tsTryParseTypeParameters(),this.eat(h._extends)&&(t.extends=this.tsParseHeritageClause());var e=this.startNode();return e.body=this.tsInType(this.tsParseObjectTypeMembers.bind(this)),t.body=this.finishNode(e,"TSInterfaceBody"),this.finishNode(t,"TSInterfaceDeclaration")},s.tsParseTypeAliasDeclaration=function(t){return t.id=this.parseIdentifier(),t.typeParameters=this.tsTryParseTypeParameters(),t.typeAnnotation=this.tsExpectThenParseType(h.eq),this.semicolon(),this.finishNode(t,"TSTypeAliasDeclaration")},s.tsInNoContext=function(t){var e=this.state.context;this.state.context=[e[0]];try{return t()}finally{this.state.context=e}},s.tsInType=function(t){var e=this.state.inType;this.state.inType=!0;try{return t()}finally{this.state.inType=e}},s.tsEatThenParseType=function(t){return this.match(t)?this.tsNextThenParseType():void 0},s.tsExpectThenParseType=function(t){var e=this;return this.tsDoThenParseType(function(){return e.expect(t)})},s.tsNextThenParseType=function(){var t=this;return this.tsDoThenParseType(function(){return t.next()})},s.tsDoThenParseType=function(t){var e=this;return this.tsInType(function(){return t(),e.tsParseType()})},s.tsParseEnumMember=function(){var t=this.startNode();return t.id=this.match(h.string)?this.parseLiteral(this.state.value,"StringLiteral"):this.parseIdentifier(!0),this.eat(h.eq)&&(t.initializer=this.parseMaybeAssign()),this.finishNode(t,"TSEnumMember")},s.tsParseEnumDeclaration=function(t,e){return e&&(t.const=!0),t.id=this.parseIdentifier(),this.expect(h.braceL),t.members=this.tsParseDelimitedList("EnumMembers",this.tsParseEnumMember.bind(this)),this.expect(h.braceR),this.finishNode(t,"TSEnumDeclaration")},s.tsParseModuleBlock=function(){var t=this.startNode();return this.expect(h.braceL),this.parseBlockOrModuleBlockBody(t.body=[],void 0,!0,h.braceR),this.finishNode(t,"TSModuleBlock")},s.tsParseModuleOrNamespaceDeclaration=function(t){if(t.id=this.parseIdentifier(),this.eat(h.dot)){var e=this.startNode();this.tsParseModuleOrNamespaceDeclaration(e),t.body=e}else t.body=this.tsParseModuleBlock();return this.finishNode(t,"TSModuleDeclaration")},s.tsParseAmbientExternalModuleDeclaration=function(t){return this.isContextual("global")?(t.global=!0,t.id=this.parseIdentifier()):this.match(h.string)?t.id=this.parseExprAtom():this.unexpected(),this.match(h.braceL)?t.body=this.tsParseModuleBlock():this.semicolon(),this.finishNode(t,"TSModuleDeclaration")},s.tsParseImportEqualsDeclaration=function(t,e){return t.isExport=e||!1,t.id=this.parseIdentifier(),this.expect(h.eq),t.moduleReference=this.tsParseModuleReference(),this.semicolon(),this.finishNode(t,"TSImportEqualsDeclaration")},s.tsIsExternalModuleReference=function(){return this.isContextual("require")&&this.lookahead().type===h.parenL},s.tsParseModuleReference=function(){return this.tsIsExternalModuleReference()?this.tsParseExternalModuleReference():this.tsParseEntityName(!1)},s.tsParseExternalModuleReference=function(){var t=this.startNode();if(this.expectContextual("require"),this.expect(h.parenL),!this.match(h.string))throw this.unexpected();return t.expression=this.parseLiteral(this.state.value,"StringLiteral"),this.expect(h.parenR),this.finishNode(t,"TSExternalModuleReference")},s.tsLookAhead=function(t){var e=this.state.clone(),s=t();return this.state=e,s},s.tsTryParseAndCatch=function(t){var e=this.state.clone();try{return t()}catch(t){if(t instanceof SyntaxError)return void(this.state=e);throw t}},s.tsTryParse=function(t){var e=this.state.clone(),s=t();return void 0!==s&&!1!==s?s:void(this.state=e)},s.nodeWithSamePosition=function(t,e){var s=this.startNodeAtNode(t);return s.type=e,s.end=t.end,s.loc.end=t.loc.end,t.leadingComments&&(s.leadingComments=t.leadingComments),t.trailingComments&&(s.trailingComments=t.trailingComments),t.innerComments&&(s.innerComments=t.innerComments),s},s.tsTryParseDeclare=function(t){switch(this.state.type){case h._function:return this.next(),this.parseFunction(t,!0);case h._class:return this.parseClass(t,!0,!1);case h._const:if(this.match(h._const)&&this.isLookaheadContextual("enum"))return this.expect(h._const),this.expectContextual("enum"),this.tsParseEnumDeclaration(t,!0);case h._var:case h._let:return this.parseVarStatement(t,this.state.type);case h.name:var e=this.state.value;return"global"===e?this.tsParseAmbientExternalModuleDeclaration(t):this.tsParseDeclaration(t,e,!0)}},s.tsTryParseExportDeclaration=function(){return this.tsParseDeclaration(this.startNode(),this.state.value,!0)},s.tsParseExpressionStatement=function(t,e){switch(e.name){case"declare":var s=this.tsTryParseDeclare(t);if(s)return s.declare=!0,s;break;case"global":if(this.match(h.braceL)){var i=t;return i.global=!0,i.id=e,i.body=this.tsParseModuleBlock(),this.finishNode(i,"TSModuleDeclaration")}break;default:return this.tsParseDeclaration(t,e.name,!1)}},s.tsParseDeclaration=function(t,e,s){switch(e){case"abstract":if(s||this.match(h._class)){var i=t;return i.abstract=!0,s&&this.next(),this.parseClass(i,!0,!1)}break;case"enum":if(s||this.match(h.name))return s&&this.next(),this.tsParseEnumDeclaration(t,!1);break;case"interface":if(s||this.match(h.name))return s&&this.next(),this.tsParseInterfaceDeclaration(t);break;case"module":if(s&&this.next(),this.match(h.string))return this.tsParseAmbientExternalModuleDeclaration(t);if(s||this.match(h.name))return this.tsParseModuleOrNamespaceDeclaration(t);break;case"namespace":if(s||this.match(h.name))return s&&this.next(),this.tsParseModuleOrNamespaceDeclaration(t);break;case"type":if(s||this.match(h.name))return s&&this.next(),this.tsParseTypeAliasDeclaration(t)}},s.tsTryParseGenericAsyncArrowFunction=function(e,s){var i=this,r=this.tsTryParseAndCatch(function(){var r=i.startNodeAt(e,s);return r.typeParameters=i.tsParseTypeParameters(),t.prototype.parseFunctionParams.call(i,r),r.returnType=i.tsTryParseTypeOrTypePredicateAnnotation(),i.expect(h.arrow),r});if(r){var a=this.state.inAsync,n=this.state.inGenerator;return this.state.inAsync=!0,this.state.inGenerator=!1,r.id=null,r.generator=!1,r.expression=!0,r.async=!0,this.parseFunctionBody(r,!0),this.state.inAsync=a,this.state.inGenerator=n,this.finishNode(r,"ArrowFunctionExpression")}},s.tsParseTypeArguments=function(){var t=this,e=this.startNode();return e.params=this.tsInType(function(){return t.tsInNoContext(function(){return t.expectRelational("<"),t.tsParseDelimitedList("TypeParametersOrArguments",t.tsParseType.bind(t))})}),this.state.exprAllowed=!1,this.expectRelational(">"),this.finishNode(e,"TSTypeParameterInstantiation")},s.tsIsDeclarationStart=function(){if(this.match(h.name))switch(this.state.value){case"abstract":case"declare":case"enum":case"interface":case"module":case"namespace":case"type":return!0}return!1},s.isExportDefaultSpecifier=function(){return!this.tsIsDeclarationStart()&&t.prototype.isExportDefaultSpecifier.call(this)},s.parseAssignableListItem=function(t,e){var s,i=!1;t&&(s=this.parseAccessModifier(),i=!!this.tsParseModifier(["readonly"]));var r=this.parseMaybeDefault();this.parseAssignableListItemTypes(r);var a=this.parseMaybeDefault(r.start,r.loc.start,r);if(s||i){var n=this.startNodeAtNode(a);if(e.length&&(n.decorators=e),s&&(n.accessibility=s),i&&(n.readonly=i),"Identifier"!==a.type&&"AssignmentPattern"!==a.type)throw this.raise(n.start,"A parameter property may not be declared using a binding pattern.");return n.parameter=a,this.finishNode(n,"TSParameterProperty")}return e.length&&(r.decorators=e),a},s.parseFunctionBodyAndFinish=function(e,s,i){!i&&this.match(h.colon)&&(e.returnType=this.tsParseTypeOrTypePredicateAnnotation(h.colon));var r="FunctionDeclaration"===s?"TSDeclareFunction":"ClassMethod"===s?"TSDeclareMethod":void 0;r&&!this.match(h.braceL)&&this.isLineTerminator()?this.finishNode(e,r):t.prototype.parseFunctionBodyAndFinish.call(this,e,s,i)},s.parseSubscript=function(e,s,i,r,a){var n=this;if(!this.hasPrecedingLineBreak()&&this.match(h.bang)){this.state.exprAllowed=!1,this.next();var o=this.startNodeAt(s,i);return o.expression=e,this.finishNode(o,"TSNonNullExpression")}if(this.isRelational("<")){var p=this.tsTryParseAndCatch(function(){if(!r&&n.atPossibleAsync(e)){var t=n.tsTryParseGenericAsyncArrowFunction(s,i);if(t)return t}var o=n.startNodeAt(s,i);o.callee=e;var p=n.tsParseTypeArguments();if(p){if(!r&&n.eat(h.parenL))return o.arguments=n.parseCallExpressionArguments(h.parenR,!1),o.typeParameters=p,n.finishCallExpression(o);if(n.match(h.backQuote))return n.parseTaggedTemplateExpression(s,i,e,a,p)}n.unexpected()});if(p)return p}return t.prototype.parseSubscript.call(this,e,s,i,r,a)},s.parseNewArguments=function(e){var s=this;if(this.isRelational("<")){var i=this.tsTryParseAndCatch(function(){var t=s.tsParseTypeArguments();return s.match(h.parenL)||s.unexpected(),t});i&&(e.typeParameters=i)}t.prototype.parseNewArguments.call(this,e)},s.parseExprOp=function(e,s,i,r,a){if(st(h._in.binop)>r&&!this.hasPrecedingLineBreak()&&this.isContextual("as")){var n=this.startNodeAt(s,i);return n.expression=e,n.typeAnnotation=this.tsNextThenParseType(),this.finishNode(n,"TSAsExpression"),this.parseExprOp(n,s,i,r,a)}return t.prototype.parseExprOp.call(this,e,s,i,r,a)},s.checkReservedWord=function(t,e,s,i){},s.checkDuplicateExports=function(){},s.parseImport=function(e){return this.match(h.name)&&this.lookahead().type===h.eq?this.tsParseImportEqualsDeclaration(e):t.prototype.parseImport.call(this,e)},s.parseExport=function(e){if(this.match(h._import))return this.expect(h._import),this.tsParseImportEqualsDeclaration(e,!0);if(this.eat(h.eq)){var s=e;return s.expression=this.parseExpression(),this.semicolon(),this.finishNode(s,"TSExportAssignment")}if(this.eatContextual("as")){var i=e;return this.expectContextual("namespace"),i.id=this.parseIdentifier(),this.semicolon(),this.finishNode(i,"TSNamespaceExportDeclaration")}return t.prototype.parseExport.call(this,e)},s.isAbstractClass=function(){return this.isContextual("abstract")&&this.lookahead().type===h._class},s.parseExportDefaultExpression=function(){if(this.isAbstractClass()){var e=this.startNode();return this.next(),this.parseClass(e,!0,!0),e.abstract=!0,e}if("interface"===this.state.value){var s=this.tsParseDeclaration(this.startNode(),this.state.value,!0);if(s)return s}return t.prototype.parseExportDefaultExpression.call(this)},s.parseStatementContent=function(e,s){if(this.state.type===h._const){var i=this.lookahead();if(i.type===h.name&&"enum"===i.value){var r=this.startNode();return this.expect(h._const),this.expectContextual("enum"),this.tsParseEnumDeclaration(r,!0)}}return t.prototype.parseStatementContent.call(this,e,s)},s.parseAccessModifier=function(){return this.tsParseModifier(["public","protected","private"])},s.parseClassMember=function(e,s,i){var r=this.parseAccessModifier();r&&(s.accessibility=r),t.prototype.parseClassMember.call(this,e,s,i)},s.parseClassMemberWithIsStatic=function(e,s,i,r){var a=s,n=s,o=s,h=!1,p=!1;switch(this.tsParseModifier(["abstract","readonly"])){case"readonly":p=!0,h=!!this.tsParseModifier(["abstract"]);break;case"abstract":h=!0,p=!!this.tsParseModifier(["readonly"])}if(h&&(a.abstract=!0),p&&(o.readonly=!0),!h&&!r&&!a.accessibility){var u=this.tsTryParseIndexSignature(s);if(u)return void e.body.push(u)}if(p)return a.static=r,this.parseClassPropertyName(n),this.parsePostMemberNameModifiers(a),void this.pushClassProperty(e,n);t.prototype.parseClassMemberWithIsStatic.call(this,e,s,i,r)},s.parsePostMemberNameModifiers=function(t){this.eat(h.question)&&(t.optional=!0)},s.parseExpressionStatement=function(e,s){return("Identifier"===s.type?this.tsParseExpressionStatement(e,s):void 0)||t.prototype.parseExpressionStatement.call(this,e,s)},s.shouldParseExportDeclaration=function(){return!!this.tsIsDeclarationStart()||t.prototype.shouldParseExportDeclaration.call(this)},s.parseConditional=function(e,s,i,r,a){if(!a||!this.match(h.question))return t.prototype.parseConditional.call(this,e,s,i,r,a);var n=this.state.clone();try{return t.prototype.parseConditional.call(this,e,s,i,r)}catch(t){if(!(t instanceof SyntaxError))throw t;return this.state=n,a.start=t.pos||this.state.start,e}},s.parseParenItem=function(e,s,i){if(e=t.prototype.parseParenItem.call(this,e,s,i),this.eat(h.question)&&(e.optional=!0),this.match(h.colon)){var r=this.startNodeAt(s,i);return r.expression=e,r.typeAnnotation=this.tsParseTypeAnnotation(),this.finishNode(r,"TSTypeCastExpression")}return e},s.parseExportDeclaration=function(e){var s,i=this.eatContextual("declare");return this.match(h.name)&&(s=this.tsTryParseExportDeclaration()),s||(s=t.prototype.parseExportDeclaration.call(this,e)),s&&i&&(s.declare=!0),s},s.parseClassId=function(e,s,i){if(s&&!i||!this.isContextual("implements")){t.prototype.parseClassId.apply(this,arguments);var r=this.tsTryParseTypeParameters();r&&(e.typeParameters=r)}},s.parseClassProperty=function(e){!e.optional&&this.eat(h.bang)&&(e.definite=!0);var s=this.tsTryParseTypeAnnotation();return s&&(e.typeAnnotation=s),t.prototype.parseClassProperty.call(this,e)},s.pushClassMethod=function(e,s,i,r,a){var n=this.tsTryParseTypeParameters();n&&(s.typeParameters=n),t.prototype.pushClassMethod.call(this,e,s,i,r,a)},s.pushClassPrivateMethod=function(e,s,i,r){var a=this.tsTryParseTypeParameters();a&&(s.typeParameters=a),t.prototype.pushClassPrivateMethod.call(this,e,s,i,r)},s.parseClassSuper=function(e){t.prototype.parseClassSuper.call(this,e),e.superClass&&this.isRelational("<")&&(e.superTypeParameters=this.tsParseTypeArguments()),this.eatContextual("implements")&&(e.implements=this.tsParseHeritageClause())},s.parseObjPropValue=function(e){var s,i=this.tsTryParseTypeParameters();i&&(e.typeParameters=i);for(var r=arguments.length,a=new Array(r>1?r-1:0),n=1;n<r;n++)a[n-1]=arguments[n];(s=t.prototype.parseObjPropValue).call.apply(s,[this,e].concat(a))},s.parseFunctionParams=function(e,s){var 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