rollup/dist/es/rollup.browser.js

Next-generation ES module bundler

/*
  @license
	Rollup.js v2.7.4
	Wed, 29 Apr 2020 18:52:21 GMT - commit 7cf6f9890f294d3b97cbb2d713e673ce220e6b1a


	https://github.com/rollup/rollup

	Released under the MIT License.
*/
var e="2.7.4",t={3:"abstract boolean byte char class double enum export extends final float goto implements import int interface long native package private protected public short static super synchronized throws transient volatile",5:"class enum extends super const export import",6:"enum",strict:"implements interface let package private protected public static yield",strictBind:"eval arguments"},s="break case catch continue debugger default do else finally for function if return switch throw try var while with null true false instanceof typeof void delete new in this",i={5:s,"5module":s+" export import",6:s+" const class extends export import super"},n=/^in(stanceof)?$/,r="ªµºÀ-ÖØ-öø-ˁˆ-ˑˠ-ˤˬˮͰ-ʹͶͷͺ-ͽͿΆΈ-ΊΌΎ-ΡΣ-ϵϷ-ҁҊ-ԯԱ-Ֆՙՠ-ֈא-תׯ-ײؠ-يٮٯٱ-ۓەۥۦۮۯۺ-ۼۿܐܒ-ܯݍ-ޥޱߊ-ߪߴߵߺࠀ-ࠕࠚࠤࠨࡀ-ࡘࡠ-ࡪࢠ-ࢴࢶ-ࢽऄ-हऽॐक़-ॡॱ-ঀঅ-ঌএঐও-নপ-রলশ-হঽৎড়ঢ়য়-ৡৰৱৼਅ-ਊਏਐਓ-ਨਪ-ਰਲਲ਼ਵਸ਼ਸਹਖ਼-ੜਫ਼ੲ-ੴઅ-ઍએ-ઑઓ-નપ-રલળવ-હઽૐૠૡૹଅ-ଌଏଐଓ-ନପ-ରଲଳଵ-ହଽଡ଼ଢ଼ୟ-ୡୱஃஅ-ஊஎ-ஐஒ-கஙசஜஞடணதந-பம-ஹௐఅ-ఌఎ-ఐఒ-నప-హఽౘ-ౚౠౡಀಅ-ಌಎ-ಐಒ-ನಪ-ಳವ-ಹಽೞೠೡೱೲഅ-ഌഎ-ഐഒ-ഺഽൎൔ-ൖൟ-ൡൺ-ൿඅ-ඖක-නඳ-රලව-ෆก-ะาำเ-ๆກຂຄຆ-ຊຌ-ຣລວ-ະາຳຽເ-ໄໆໜ-ໟༀཀ-ཇཉ-ཬྈ-ྌက-ဪဿၐ-ၕၚ-ၝၡၥၦၮ-ၰၵ-ႁႎႠ-ჅჇჍა-ჺჼ-ቈቊ-ቍቐ-ቖቘቚ-ቝበ-ኈኊ-ኍነ-ኰኲ-ኵኸ-ኾዀዂ-ዅወ-ዖዘ-ጐጒ-ጕጘ-ፚᎀ-ᎏᎠ-Ᏽᏸ-ᏽᐁ-ᙬᙯ-ᙿᚁ-ᚚᚠ-ᛪᛮ-ᛸᜀ-ᜌᜎ-ᜑᜠ-ᜱᝀ-ᝑᝠ-ᝬᝮ-ᝰក-ឳៗៜᠠ-ᡸᢀ-ᢨᢪᢰ-ᣵᤀ-ᤞᥐ-ᥭᥰ-ᥴᦀ-ᦫᦰ-ᧉᨀ-ᨖᨠ-ᩔᪧᬅ-ᬳᭅ-ᭋᮃ-ᮠᮮᮯᮺ-ᯥᰀ-ᰣᱍ-ᱏᱚ-ᱽᲀ-ᲈᲐ-ᲺᲽ-Ჿᳩ-ᳬᳮ-ᳳᳵᳶᳺᴀ-ᶿḀ-ἕἘ-Ἕἠ-ὅὈ-Ὅὐ-ὗὙὛὝὟ-ώᾀ-ᾴᾶ-ᾼιῂ-ῄῆ-ῌῐ-ΐῖ-Ίῠ-Ῥῲ-ῴῶ-ῼⁱⁿₐ-ₜℂℇℊ-ℓℕ℘-ℝℤΩℨK-ℹℼ-ℿⅅ-ⅉⅎⅠ-ↈⰀ-Ⱞⰰ-ⱞⱠ-ⳤⳫ-ⳮⳲⳳⴀ-ⴥⴧⴭⴰ-ⵧⵯⶀ-ⶖⶠ-ⶦⶨ-ⶮⶰ-ⶶⶸ-ⶾⷀ-ⷆⷈ-ⷎⷐ-ⷖⷘ-ⷞ々-〇〡-〩〱-〵〸-〼ぁ-ゖ゛-ゟァ-ヺー-ヿㄅ-ㄯㄱ-ㆎㆠ-ㆺㇰ-ㇿ㐀-䶵一-鿯ꀀ-ꒌꓐ-ꓽꔀ-ꘌꘐ-ꘟꘪꘫꙀ-ꙮꙿ-ꚝꚠ-ꛯꜗ-ꜟꜢ-ꞈꞋ-ꞿꟂ-Ᶎꟷ-ꠁꠃ-ꠅꠇ-ꠊꠌ-ꠢꡀ-ꡳꢂ-ꢳꣲ-ꣷꣻꣽꣾꤊ-ꤥꤰ-ꥆꥠ-ꥼꦄ-ꦲꧏꧠ-ꧤꧦ-ꧯꧺ-ꧾꨀ-ꨨꩀ-ꩂꩄ-ꩋꩠ-ꩶꩺꩾ-ꪯꪱꪵꪶꪹ-ꪽꫀꫂꫛ-ꫝꫠ-ꫪꫲ-ꫴꬁ-ꬆꬉ-ꬎꬑ-ꬖꬠ-ꬦꬨ-ꬮꬰ-ꭚꭜ-ꭧꭰ-ꯢ가-힣ힰ-ퟆퟋ-ퟻ豈-舘並-龎ff-stﬓ-ﬗיִײַ-ﬨשׁ-זּטּ-לּמּנּסּףּפּצּ-ﮱﯓ-ﴽﵐ-ﶏﶒ-ﷇﷰ-ﷻﹰ-ﹴﹶ-ﻼＡ-Ｚａ-ｚｦ-ﾾￂ-ￇￊ-ￏￒ-ￗￚ-ￜ",a="‌‍·̀-ͯ·҃-֑҇-ׇֽֿׁׂׅׄؐ-ًؚ-٩ٰۖ-ۜ۟-۪ۤۧۨ-ۭ۰-۹ܑܰ-݊ަ-ް߀-߉߫-߽߳ࠖ-࠙ࠛ-ࠣࠥ-ࠧࠩ-࡙࠭-࡛࣓-ࣣ࣡-ःऺ-़ा-ॏ॑-ॗॢॣ०-९ঁ-ঃ়া-ৄেৈো-্ৗৢৣ০-৯৾ਁ-ਃ਼ਾ-ੂੇੈੋ-੍ੑ੦-ੱੵઁ-ઃ઼ા-ૅે-ૉો-્ૢૣ૦-૯ૺ-૿ଁ-ଃ଼ା-ୄେୈୋ-୍ୖୗୢୣ୦-୯ஂா-ூெ-ைொ-்ௗ௦-௯ఀ-ఄా-ౄె-ైొ-్ౕౖౢౣ౦-౯ಁ-ಃ಼ಾ-ೄೆ-ೈೊ-್ೕೖೢೣ೦-೯ഀ-ഃ഻഼ാ-ൄെ-ൈൊ-്ൗൢൣ൦-൯ංඃ්ා-ුූෘ-ෟ෦-෯ෲෳัิ-ฺ็-๎๐-๙ັິ-ຼ່-ໍ໐-໙༘༙༠-༩༹༵༷༾༿ཱ-྄྆྇ྍ-ྗྙ-ྼ࿆ါ-ှ၀-၉ၖ-ၙၞ-ၠၢ-ၤၧ-ၭၱ-ၴႂ-ႍႏ-ႝ፝-፟፩-፱ᜒ-᜔ᜲ-᜴ᝒᝓᝲᝳ឴-៓៝០-៩᠋-᠍᠐-᠙ᢩᤠ-ᤫᤰ-᤻᥆-᥏᧐-᧚ᨗ-ᨛᩕ-ᩞ᩠-᩿᩼-᪉᪐-᪙᪰-᪽ᬀ-ᬄ᬴-᭄᭐-᭙᭫-᭳ᮀ-ᮂᮡ-ᮭ᮰-᮹᯦-᯳ᰤ-᰷᱀-᱉᱐-᱙᳐-᳔᳒-᳨᳭᳴᳷-᳹᷀-᷹᷻-᷿‿⁀⁔⃐-⃥⃜⃡-⃰⳯-⵿⳱ⷠ-〪ⷿ-゙゚〯꘠-꘩꙯ꙴ-꙽ꚞꚟ꛰꛱ꠂ꠆ꠋꠣ-ꠧꢀꢁꢴ-ꣅ꣐-꣙꣠-꣱ꣿ-꤉ꤦ-꤭ꥇ-꥓ꦀ-ꦃ꦳-꧀꧐-꧙ꧥ꧰-꧹ꨩ-ꨶꩃꩌꩍ꩐-꩙ꩻ-ꩽꪰꪲ-ꪴꪷꪸꪾ꪿꫁ꫫ-ꫯꫵ꫶ꯣ-ꯪ꯬꯭꯰-꯹ﬞ︀-️︠-︯︳︴﹍-﹏０-９＿",o=new RegExp("["+r+"]"),h=new RegExp("["+r+a+"]");r=a=null;var l=[0,11,2,25,2,18,2,1,2,14,3,13,35,122,70,52,268,28,4,48,48,31,14,29,6,37,11,29,3,35,5,7,2,4,43,157,19,35,5,35,5,39,9,51,157,310,10,21,11,7,153,5,3,0,2,43,2,1,4,0,3,22,11,22,10,30,66,18,2,1,11,21,11,25,71,55,7,1,65,0,16,3,2,2,2,28,43,28,4,28,36,7,2,27,28,53,11,21,11,18,14,17,111,72,56,50,14,50,14,35,477,28,11,0,9,21,155,22,13,52,76,44,33,24,27,35,30,0,12,34,4,0,13,47,15,3,22,0,2,0,36,17,2,24,85,6,2,0,2,3,2,14,2,9,8,46,39,7,3,1,3,21,2,6,2,1,2,4,4,0,19,0,13,4,159,52,19,3,21,0,33,47,21,1,2,0,185,46,42,3,37,47,21,0,60,42,14,0,72,26,230,43,117,63,32,0,161,7,3,38,17,0,2,0,29,0,11,39,8,0,22,0,12,45,20,0,35,56,264,8,2,36,18,0,50,29,113,6,2,1,2,37,22,0,26,5,2,1,2,31,15,0,328,18,270,921,103,110,18,195,2749,1070,4050,582,8634,568,8,30,114,29,19,47,17,3,32,20,6,18,689,63,129,74,6,0,67,12,65,1,2,0,29,6135,9,754,9486,286,50,2,18,3,9,395,2309,106,6,12,4,8,8,9,5991,84,2,70,2,1,3,0,3,1,3,3,2,11,2,0,2,6,2,64,2,3,3,7,2,6,2,27,2,3,2,4,2,0,4,6,2,339,3,24,2,24,2,30,2,24,2,30,2,24,2,30,2,24,2,30,2,24,2,7,2357,44,11,6,17,0,370,43,1301,196,60,67,8,0,1205,3,2,26,2,1,2,0,3,0,2,9,2,3,2,0,2,0,7,0,5,0,2,0,2,0,2,2,2,1,2,0,3,0,2,0,2,0,2,0,2,0,2,1,2,0,3,3,2,6,2,3,2,3,2,0,2,9,2,16,6,2,2,4,2,16,4421,42710,42,4148,12,221,3,5761,15,7472,3104,541],c=[509,0,227,0,150,4,294,9,1368,2,2,1,6,3,41,2,5,0,166,1,574,3,9,9,525,10,176,2,54,14,32,9,16,3,46,10,54,9,7,2,37,13,2,9,6,1,45,0,13,2,49,13,9,3,4,9,83,11,7,0,161,11,6,9,7,3,56,1,2,6,3,1,3,2,10,0,11,1,3,6,4,4,193,17,10,9,5,0,82,19,13,9,214,6,3,8,28,1,83,16,16,9,82,12,9,9,84,14,5,9,243,14,166,9,232,6,3,6,4,0,29,9,41,6,2,3,9,0,10,10,47,15,406,7,2,7,17,9,57,21,2,13,123,5,4,0,2,1,2,6,2,0,9,9,49,4,2,1,2,4,9,9,330,3,19306,9,135,4,60,6,26,9,1014,0,2,54,8,3,19723,1,5319,4,4,5,9,7,3,6,31,3,149,2,1418,49,513,54,5,49,9,0,15,0,23,4,2,14,1361,6,2,16,3,6,2,1,2,4,262,6,10,9,419,13,1495,6,110,6,6,9,792487,239];function u(e,t){for(var s=65536,i=0;i<t.length;i+=2){if((s+=t[i])>e)return!1;if((s+=t[i+1])>=e)return!0}}function d(e,t){return e<65?36===e:e<91||(e<97?95===e:e<123||(e<=65535?e>=170&&o.test(String.fromCharCode(e)):!1!==t&&u(e,l)))}function p(e,t){return e<48?36===e:e<58||!(e<65)&&(e<91||(e<97?95===e:e<123||(e<=65535?e>=170&&h.test(String.fromCharCode(e)):!1!==t&&(u(e,l)||u(e,c)))))}var f=function(e,t){void 0===t&&(t={}),this.label=e,this.keyword=t.keyword,this.beforeExpr=!!t.beforeExpr,this.startsExpr=!!t.startsExpr,this.isLoop=!!t.isLoop,this.isAssign=!!t.isAssign,this.prefix=!!t.prefix,this.postfix=!!t.postfix,this.binop=t.binop||null,this.updateContext=null};function m(e,t){return new f(e,{beforeExpr:!0,binop:t})}var g={beforeExpr:!0},x={startsExpr:!0},y={};function E(e,t){return void 0===t&&(t={}),t.keyword=e,y[e]=new f(e,t)}var v={num:new f("num",x),regexp:new f("regexp",x),string:new f("string",x),name:new f("name",x),eof:new f("eof"),bracketL:new f("[",{beforeExpr:!0,startsExpr:!0}),bracketR:new f("]"),braceL:new f("{",{beforeExpr:!0,startsExpr:!0}),braceR:new f("}"),parenL:new f("(",{beforeExpr:!0,startsExpr:!0}),parenR:new f(")"),comma:new f(",",g),semi:new f(";",g),colon:new f(":",g),dot:new f("."),question:new f("?",g),arrow:new f("=>",g),template:new f("template"),invalidTemplate:new f("invalidTemplate"),ellipsis:new f("...",g),backQuote:new f("`",x),dollarBraceL:new f("${",{beforeExpr:!0,startsExpr:!0}),eq:new f("=",{beforeExpr:!0,isAssign:!0}),assign:new f("_=",{beforeExpr:!0,isAssign:!0}),incDec:new f("++/--",{prefix:!0,postfix:!0,startsExpr:!0}),prefix:new f("!/~",{beforeExpr:!0,prefix:!0,startsExpr:!0}),logicalOR:m("||",1),logicalAND:m("&&",2),bitwiseOR:m("|",3),bitwiseXOR:m("^",4),bitwiseAND:m("&",5),equality:m("==/!=/===/!==",6),relational:m("</>/<=/>=",7),bitShift:m("<</>>/>>>",8),plusMin:new f("+/-",{beforeExpr:!0,binop:9,prefix:!0,startsExpr:!0}),modulo:m("%",10),star:m("*",10),slash:m("/",10),starstar:new f("**",{beforeExpr:!0}),_break:E("break"),_case:E("case",g),_catch:E("catch"),_continue:E("continue"),_debugger:E("debugger"),_default:E("default",g),_do:E("do",{isLoop:!0,beforeExpr:!0}),_else:E("else",g),_finally:E("finally"),_for:E("for",{isLoop:!0}),_function:E("function",x),_if:E("if"),_return:E("return",g),_switch:E("switch"),_throw:E("throw",g),_try:E("try"),_var:E("var"),_const:E("const"),_while:E("while",{isLoop:!0}),_with:E("with"),_new:E("new",{beforeExpr:!0,startsExpr:!0}),_this:E("this",x),_super:E("super",x),_class:E("class",x),_extends:E("extends",g),_export:E("export"),_import:E("import",x),_null:E("null",x),_true:E("true",x),_false:E("false",x),_in:E("in",{beforeExpr:!0,binop:7}),_instanceof:E("instanceof",{beforeExpr:!0,binop:7}),_typeof:E("typeof",{beforeExpr:!0,prefix:!0,startsExpr:!0}),_void:E("void",{beforeExpr:!0,prefix:!0,startsExpr:!0}),_delete:E("delete",{beforeExpr:!0,prefix:!0,startsExpr:!0})},b=/\r\n?|\n|\u2028|\u2029/,S=new RegExp(b.source,"g");function A(e,t){return 10===e||13===e||!t&&(8232===e||8233===e)}var C=/[\u1680\u2000-\u200a\u202f\u205f\u3000\ufeff]/,P=/(?:\s|\/\/.*|\/\*[^]*?\*\/)*/g,k=Object.prototype,w=k.hasOwnProperty,N=k.toString;function _(e,t){return w.call(e,t)}var I=Array.isArray||function(e){return"[object Array]"===N.call(e)};function $(e){return new RegExp("^(?:"+e.replace(/ /g,"|")+")$")}var T=function(e,t){this.line=e,this.column=t};T.prototype.offset=function(e){return new T(this.line,this.column+e)};var L=function(e,t,s){this.start=t,this.end=s,null!==e.sourceFile&&(this.source=e.sourceFile)};function R(e,t){for(var s=1,i=0;;){S.lastIndex=i;var n=S.exec(e);if(!(n&&n.index<t))return new T(s,t-i);++s,i=n.index+n[0].length}}var M={ecmaVersion:10,sourceType:"script",onInsertedSemicolon:null,onTrailingComma:null,allowReserved:null,allowReturnOutsideFunction:!1,allowImportExportEverywhere:!1,allowAwaitOutsideFunction:!1,allowHashBang:!1,locations:!1,onToken:null,onComment:null,ranges:!1,program:null,sourceFile:null,directSourceFile:null,preserveParens:!1};function O(e){var t={};for(var s in M)t[s]=e&&_(e,s)?e[s]:M[s];if(t.ecmaVersion>=2015&&(t.ecmaVersion-=2009),null==t.allowReserved&&(t.allowReserved=t.ecmaVersion<5),I(t.onToken)){var i=t.onToken;t.onToken=function(e){return i.push(e)}}return I(t.onComment)&&(t.onComment=function(e,t){return function(s,i,n,r,a,o){var h={type:s?"Block":"Line",value:i,start:n,end:r};e.locations&&(h.loc=new L(this,a,o)),e.ranges&&(h.range=[n,r]),t.push(h)}}(t,t.onComment)),t}function D(e,t){return 2|(e?4:0)|(t?8:0)}var V=function(e,s,n){this.options=e=O(e),this.sourceFile=e.sourceFile,this.keywords=$(i[e.ecmaVersion>=6?6:"module"===e.sourceType?"5module":5]);var r="";if(!0!==e.allowReserved){for(var a=e.ecmaVersion;!(r=t[a]);a--);"module"===e.sourceType&&(r+=" await")}this.reservedWords=$(r);var o=(r?r+" ":"")+t.strict;this.reservedWordsStrict=$(o),this.reservedWordsStrictBind=$(o+" "+t.strictBind),this.input=String(s),this.containsEsc=!1,n?(this.pos=n,this.lineStart=this.input.lastIndexOf("\n",n-1)+1,this.curLine=this.input.slice(0,this.lineStart).split(b).length):(this.pos=this.lineStart=0,this.curLine=1),this.type=v.eof,this.value=null,this.start=this.end=this.pos,this.startLoc=this.endLoc=this.curPosition(),this.lastTokEndLoc=this.lastTokStartLoc=null,this.lastTokStart=this.lastTokEnd=this.pos,this.context=this.initialContext(),this.exprAllowed=!0,this.inModule="module"===e.sourceType,this.strict=this.inModule||this.strictDirective(this.pos),this.potentialArrowAt=-1,this.yieldPos=this.awaitPos=this.awaitIdentPos=0,this.labels=[],this.undefinedExports={},0===this.pos&&e.allowHashBang&&"#!"===this.input.slice(0,2)&&this.skipLineComment(2),this.scopeStack=[],this.enterScope(1),this.regexpState=null},B={inFunction:{configurable:!0},inGenerator:{configurable:!0},inAsync:{configurable:!0},allowSuper:{configurable:!0},allowDirectSuper:{configurable:!0},treatFunctionsAsVar:{configurable:!0}};V.prototype.parse=function(){var e=this.options.program||this.startNode();return this.nextToken(),this.parseTopLevel(e)},B.inFunction.get=function(){return(2&this.currentVarScope().flags)>0},B.inGenerator.get=function(){return(8&this.currentVarScope().flags)>0},B.inAsync.get=function(){return(4&this.currentVarScope().flags)>0},B.allowSuper.get=function(){return(64&this.currentThisScope().flags)>0},B.allowDirectSuper.get=function(){return(128&this.currentThisScope().flags)>0},B.treatFunctionsAsVar.get=function(){return this.treatFunctionsAsVarInScope(this.currentScope())},V.prototype.inNonArrowFunction=function(){return(2&this.currentThisScope().flags)>0},V.extend=function(){for(var e=[],t=arguments.length;t--;)e[t]=arguments[t];for(var s=this,i=0;i<e.length;i++)s=e[i](s);return s},V.parse=function(e,t){return new this(t,e).parse()},V.parseExpressionAt=function(e,t,s){var i=new this(s,e,t);return i.nextToken(),i.parseExpression()},V.tokenizer=function(e,t){return new this(t,e)},Object.defineProperties(V.prototype,B);var F=V.prototype,W=/^(?:'((?:\\.|[^'])*?)'|"((?:\\.|[^"])*?)")/;function U(){this.shorthandAssign=this.trailingComma=this.parenthesizedAssign=this.parenthesizedBind=this.doubleProto=-1}F.strictDirective=function(e){for(;;){P.lastIndex=e,e+=P.exec(this.input)[0].length;var t=W.exec(this.input.slice(e));if(!t)return!1;if("use strict"===(t[1]||t[2]))return!0;e+=t[0].length,P.lastIndex=e,e+=P.exec(this.input)[0].length,";"===this.input[e]&&e++}},F.eat=function(e){return this.type===e&&(this.next(),!0)},F.isContextual=function(e){return this.type===v.name&&this.value===e&&!this.containsEsc},F.eatContextual=function(e){return!!this.isContextual(e)&&(this.next(),!0)},F.expectContextual=function(e){this.eatContextual(e)||this.unexpected()},F.canInsertSemicolon=function(){return this.type===v.eof||this.type===v.braceR||b.test(this.input.slice(this.lastTokEnd,this.start))},F.insertSemicolon=function(){if(this.canInsertSemicolon())return this.options.onInsertedSemicolon&&this.options.onInsertedSemicolon(this.lastTokEnd,this.lastTokEndLoc),!0},F.semicolon=function(){this.eat(v.semi)||this.insertSemicolon()||this.unexpected()},F.afterTrailingComma=function(e,t){if(this.type===e)return this.options.onTrailingComma&&this.options.onTrailingComma(this.lastTokStart,this.lastTokStartLoc),t||this.next(),!0},F.expect=function(e){this.eat(e)||this.unexpected()},F.unexpected=function(e){this.raise(null!=e?e:this.start,"Unexpected token")},F.checkPatternErrors=function(e,t){if(e){e.trailingComma>-1&&this.raiseRecoverable(e.trailingComma,"Comma is not permitted after the rest element");var s=t?e.parenthesizedAssign:e.parenthesizedBind;s>-1&&this.raiseRecoverable(s,"Parenthesized pattern")}},F.checkExpressionErrors=function(e,t){if(!e)return!1;var s=e.shorthandAssign,i=e.doubleProto;if(!t)return s>=0||i>=0;s>=0&&this.raise(s,"Shorthand property assignments are valid only in destructuring patterns"),i>=0&&this.raiseRecoverable(i,"Redefinition of __proto__ property")},F.checkYieldAwaitInDefaultParams=function(){this.yieldPos&&(!this.awaitPos||this.yieldPos<this.awaitPos)&&this.raise(this.yieldPos,"Yield expression cannot be a default value"),this.awaitPos&&this.raise(this.awaitPos,"Await expression cannot be a default value")},F.isSimpleAssignTarget=function(e){return"ParenthesizedExpression"===e.type?this.isSimpleAssignTarget(e.expression):"Identifier"===e.type||"MemberExpression"===e.type};var z=V.prototype;z.parseTopLevel=function(e){var t={};for(e.body||(e.body=[]);this.type!==v.eof;){var s=this.parseStatement(null,!0,t);e.body.push(s)}if(this.inModule)for(var i=0,n=Object.keys(this.undefinedExports);i<n.length;i+=1){var r=n[i];this.raiseRecoverable(this.undefinedExports[r].start,"Export '"+r+"' is not defined")}return this.adaptDirectivePrologue(e.body),this.next(),e.sourceType=this.options.sourceType,this.finishNode(e,"Program")};var j={kind:"loop"},G={kind:"switch"};z.isLet=function(e){if(this.options.ecmaVersion<6||!this.isContextual("let"))return!1;P.lastIndex=this.pos;var t=P.exec(this.input),s=this.pos+t[0].length,i=this.input.charCodeAt(s);if(91===i)return!0;if(e)return!1;if(123===i)return!0;if(d(i,!0)){for(var r=s+1;p(this.input.charCodeAt(r),!0);)++r;var a=this.input.slice(s,r);if(!n.test(a))return!0}return!1},z.isAsyncFunction=function(){if(this.options.ecmaVersion<8||!this.isContextual("async"))return!1;P.lastIndex=this.pos;var e=P.exec(this.input),t=this.pos+e[0].length;return!(b.test(this.input.slice(this.pos,t))||"function"!==this.input.slice(t,t+8)||t+8!==this.input.length&&p(this.input.charAt(t+8)))},z.parseStatement=function(e,t,s){var i,n=this.type,r=this.startNode();switch(this.isLet(e)&&(n=v._var,i="let"),n){case v._break:case v._continue:return this.parseBreakContinueStatement(r,n.keyword);case v._debugger:return this.parseDebuggerStatement(r);case v._do:return this.parseDoStatement(r);case v._for:return this.parseForStatement(r);case v._function:return e&&(this.strict||"if"!==e&&"label"!==e)&&this.options.ecmaVersion>=6&&this.unexpected(),this.parseFunctionStatement(r,!1,!e);case v._class:return e&&this.unexpected(),this.parseClass(r,!0);case v._if:return this.parseIfStatement(r);case v._return:return this.parseReturnStatement(r);case v._switch:return this.parseSwitchStatement(r);case v._throw:return this.parseThrowStatement(r);case v._try:return this.parseTryStatement(r);case v._const:case v._var:return i=i||this.value,e&&"var"!==i&&this.unexpected(),this.parseVarStatement(r,i);case v._while:return this.parseWhileStatement(r);case v._with:return this.parseWithStatement(r);case v.braceL:return this.parseBlock(!0,r);case v.semi:return this.parseEmptyStatement(r);case v._export:case v._import:if(this.options.ecmaVersion>10&&n===v._import){P.lastIndex=this.pos;var a=P.exec(this.input),o=this.pos+a[0].length;if(40===this.input.charCodeAt(o))return this.parseExpressionStatement(r,this.parseExpression())}return this.options.allowImportExportEverywhere||(t||this.raise(this.start,"'import' and 'export' may only appear at the top level"),this.inModule||this.raise(this.start,"'import' and 'export' may appear only with 'sourceType: module'")),n===v._import?this.parseImport(r):this.parseExport(r,s);default:if(this.isAsyncFunction())return e&&this.unexpected(),this.next(),this.parseFunctionStatement(r,!0,!e);var h=this.value,l=this.parseExpression();return n===v.name&&"Identifier"===l.type&&this.eat(v.colon)?this.parseLabeledStatement(r,h,l,e):this.parseExpressionStatement(r,l)}},z.parseBreakContinueStatement=function(e,t){var s="break"===t;this.next(),this.eat(v.semi)||this.insertSemicolon()?e.label=null:this.type!==v.name?this.unexpected():(e.label=this.parseIdent(),this.semicolon());for(var i=0;i<this.labels.length;++i){var n=this.labels[i];if(null==e.label||n.name===e.label.name){if(null!=n.kind&&(s||"loop"===n.kind))break;if(e.label&&s)break}}return i===this.labels.length&&this.raise(e.start,"Unsyntactic "+t),this.finishNode(e,s?"BreakStatement":"ContinueStatement")},z.parseDebuggerStatement=function(e){return this.next(),this.semicolon(),this.finishNode(e,"DebuggerStatement")},z.parseDoStatement=function(e){return this.next(),this.labels.push(j),e.body=this.parseStatement("do"),this.labels.pop(),this.expect(v._while),e.test=this.parseParenExpression(),this.options.ecmaVersion>=6?this.eat(v.semi):this.semicolon(),this.finishNode(e,"DoWhileStatement")},z.parseForStatement=function(e){this.next();var t=this.options.ecmaVersion>=9&&(this.inAsync||!this.inFunction&&this.options.allowAwaitOutsideFunction)&&this.eatContextual("await")?this.lastTokStart:-1;if(this.labels.push(j),this.enterScope(0),this.expect(v.parenL),this.type===v.semi)return t>-1&&this.unexpected(t),this.parseFor(e,null);var s=this.isLet();if(this.type===v._var||this.type===v._const||s){var i=this.startNode(),n=s?"let":this.value;return this.next(),this.parseVar(i,!0,n),this.finishNode(i,"VariableDeclaration"),(this.type===v._in||this.options.ecmaVersion>=6&&this.isContextual("of"))&&1===i.declarations.length?(this.options.ecmaVersion>=9&&(this.type===v._in?t>-1&&this.unexpected(t):e.await=t>-1),this.parseForIn(e,i)):(t>-1&&this.unexpected(t),this.parseFor(e,i))}var r=new U,a=this.parseExpression(!0,r);return this.type===v._in||this.options.ecmaVersion>=6&&this.isContextual("of")?(this.options.ecmaVersion>=9&&(this.type===v._in?t>-1&&this.unexpected(t):e.await=t>-1),this.toAssignable(a,!1,r),this.checkLVal(a),this.parseForIn(e,a)):(this.checkExpressionErrors(r,!0),t>-1&&this.unexpected(t),this.parseFor(e,a))},z.parseFunctionStatement=function(e,t,s){return this.next(),this.parseFunction(e,q|(s?0:K),!1,t)},z.parseIfStatement=function(e){return this.next(),e.test=this.parseParenExpression(),e.consequent=this.parseStatement("if"),e.alternate=this.eat(v._else)?this.parseStatement("if"):null,this.finishNode(e,"IfStatement")},z.parseReturnStatement=function(e){return this.inFunction||this.options.allowReturnOutsideFunction||this.raise(this.start,"'return' outside of function"),this.next(),this.eat(v.semi)||this.insertSemicolon()?e.argument=null:(e.argument=this.parseExpression(),this.semicolon()),this.finishNode(e,"ReturnStatement")},z.parseSwitchStatement=function(e){var t;this.next(),e.discriminant=this.parseParenExpression(),e.cases=[],this.expect(v.braceL),this.labels.push(G),this.enterScope(0);for(var s=!1;this.type!==v.braceR;)if(this.type===v._case||this.type===v._default){var i=this.type===v._case;t&&this.finishNode(t,"SwitchCase"),e.cases.push(t=this.startNode()),t.consequent=[],this.next(),i?t.test=this.parseExpression():(s&&this.raiseRecoverable(this.lastTokStart,"Multiple default clauses"),s=!0,t.test=null),this.expect(v.colon)}else t||this.unexpected(),t.consequent.push(this.parseStatement(null));return this.exitScope(),t&&this.finishNode(t,"SwitchCase"),this.next(),this.labels.pop(),this.finishNode(e,"SwitchStatement")},z.parseThrowStatement=function(e){return this.next(),b.test(this.input.slice(this.lastTokEnd,this.start))&&this.raise(this.lastTokEnd,"Illegal newline after throw"),e.argument=this.parseExpression(),this.semicolon(),this.finishNode(e,"ThrowStatement")};var H=[];z.parseTryStatement=function(e){if(this.next(),e.block=this.parseBlock(),e.handler=null,this.type===v._catch){var t=this.startNode();if(this.next(),this.eat(v.parenL)){t.param=this.parseBindingAtom();var s="Identifier"===t.param.type;this.enterScope(s?32:0),this.checkLVal(t.param,s?4:2),this.expect(v.parenR)}else this.options.ecmaVersion<10&&this.unexpected(),t.param=null,this.enterScope(0);t.body=this.parseBlock(!1),this.exitScope(),e.handler=this.finishNode(t,"CatchClause")}return e.finalizer=this.eat(v._finally)?this.parseBlock():null,e.handler||e.finalizer||this.raise(e.start,"Missing catch or finally clause"),this.finishNode(e,"TryStatement")},z.parseVarStatement=function(e,t){return this.next(),this.parseVar(e,!1,t),this.semicolon(),this.finishNode(e,"VariableDeclaration")},z.parseWhileStatement=function(e){return this.next(),e.test=this.parseParenExpression(),this.labels.push(j),e.body=this.parseStatement("while"),this.labels.pop(),this.finishNode(e,"WhileStatement")},z.parseWithStatement=function(e){return this.strict&&this.raise(this.start,"'with' in strict mode"),this.next(),e.object=this.parseParenExpression(),e.body=this.parseStatement("with"),this.finishNode(e,"WithStatement")},z.parseEmptyStatement=function(e){return this.next(),this.finishNode(e,"EmptyStatement")},z.parseLabeledStatement=function(e,t,s,i){for(var n=0,r=this.labels;n<r.length;n+=1){r[n].name===t&&this.raise(s.start,"Label '"+t+"' is already declared")}for(var a=this.type.isLoop?"loop":this.type===v._switch?"switch":null,o=this.labels.length-1;o>=0;o--){var h=this.labels[o];if(h.statementStart!==e.start)break;h.statementStart=this.start,h.kind=a}return this.labels.push({name:t,kind:a,statementStart:this.start}),e.body=this.parseStatement(i?-1===i.indexOf("label")?i+"label":i:"label"),this.labels.pop(),e.label=s,this.finishNode(e,"LabeledStatement")},z.parseExpressionStatement=function(e,t){return e.expression=t,this.semicolon(),this.finishNode(e,"ExpressionStatement")},z.parseBlock=function(e,t){for(void 0===e&&(e=!0),void 0===t&&(t=this.startNode()),t.body=[],this.expect(v.braceL),e&&this.enterScope(0);!this.eat(v.braceR);){var s=this.parseStatement(null);t.body.push(s)}return e&&this.exitScope(),this.finishNode(t,"BlockStatement")},z.parseFor=function(e,t){return e.init=t,this.expect(v.semi),e.test=this.type===v.semi?null:this.parseExpression(),this.expect(v.semi),e.update=this.type===v.parenR?null:this.parseExpression(),this.expect(v.parenR),e.body=this.parseStatement("for"),this.exitScope(),this.labels.pop(),this.finishNode(e,"ForStatement")},z.parseForIn=function(e,t){var s=this.type===v._in;return this.next(),"VariableDeclaration"===t.type&&null!=t.declarations[0].init&&(!s||this.options.ecmaVersion<8||this.strict||"var"!==t.kind||"Identifier"!==t.declarations[0].id.type)?this.raise(t.start,(s?"for-in":"for-of")+" loop variable declaration may not have an initializer"):"AssignmentPattern"===t.type&&this.raise(t.start,"Invalid left-hand side in for-loop"),e.left=t,e.right=s?this.parseExpression():this.parseMaybeAssign(),this.expect(v.parenR),e.body=this.parseStatement("for"),this.exitScope(),this.labels.pop(),this.finishNode(e,s?"ForInStatement":"ForOfStatement")},z.parseVar=function(e,t,s){for(e.declarations=[],e.kind=s;;){var i=this.startNode();if(this.parseVarId(i,s),this.eat(v.eq)?i.init=this.parseMaybeAssign(t):"const"!==s||this.type===v._in||this.options.ecmaVersion>=6&&this.isContextual("of")?"Identifier"===i.id.type||t&&(this.type===v._in||this.isContextual("of"))?i.init=null:this.raise(this.lastTokEnd,"Complex binding patterns require an initialization value"):this.unexpected(),e.declarations.push(this.finishNode(i,"VariableDeclarator")),!this.eat(v.comma))break}return e},z.parseVarId=function(e,t){e.id=this.parseBindingAtom(),this.checkLVal(e.id,"var"===t?1:2,!1)};var q=1,K=2;z.parseFunction=function(e,t,s,i){this.initFunction(e),(this.options.ecmaVersion>=9||this.options.ecmaVersion>=6&&!i)&&(this.type===v.star&&t&K&&this.unexpected(),e.generator=this.eat(v.star)),this.options.ecmaVersion>=8&&(e.async=!!i),t&q&&(e.id=4&t&&this.type!==v.name?null:this.parseIdent(),!e.id||t&K||this.checkLVal(e.id,this.strict||e.generator||e.async?this.treatFunctionsAsVar?1:2:3));var n=this.yieldPos,r=this.awaitPos,a=this.awaitIdentPos;return this.yieldPos=0,this.awaitPos=0,this.awaitIdentPos=0,this.enterScope(D(e.async,e.generator)),t&q||(e.id=this.type===v.name?this.parseIdent():null),this.parseFunctionParams(e),this.parseFunctionBody(e,s,!1),this.yieldPos=n,this.awaitPos=r,this.awaitIdentPos=a,this.finishNode(e,t&q?"FunctionDeclaration":"FunctionExpression")},z.parseFunctionParams=function(e){this.expect(v.parenL),e.params=this.parseBindingList(v.parenR,!1,this.options.ecmaVersion>=8),this.checkYieldAwaitInDefaultParams()},z.parseClass=function(e,t){this.next();var s=this.strict;this.strict=!0,this.parseClassId(e,t),this.parseClassSuper(e);var i=this.startNode(),n=!1;for(i.body=[],this.expect(v.braceL);!this.eat(v.braceR);){var r=this.parseClassElement(null!==e.superClass);r&&(i.body.push(r),"MethodDefinition"===r.type&&"constructor"===r.kind&&(n&&this.raise(r.start,"Duplicate constructor in the same class"),n=!0))}return e.body=this.finishNode(i,"ClassBody"),this.strict=s,this.finishNode(e,t?"ClassDeclaration":"ClassExpression")},z.parseClassElement=function(e){var t=this;if(this.eat(v.semi))return null;var s=this.startNode(),i=function(e,i){void 0===i&&(i=!1);var n=t.start,r=t.startLoc;return!!t.eatContextual(e)&&(!(t.type===v.parenL||i&&t.canInsertSemicolon())||(s.key&&t.unexpected(),s.computed=!1,s.key=t.startNodeAt(n,r),s.key.name=e,t.finishNode(s.key,"Identifier"),!1))};s.kind="method",s.static=i("static");var n=this.eat(v.star),r=!1;n||(this.options.ecmaVersion>=8&&i("async",!0)?(r=!0,n=this.options.ecmaVersion>=9&&this.eat(v.star)):i("get")?s.kind="get":i("set")&&(s.kind="set")),s.key||this.parsePropertyName(s);var a=s.key,o=!1;return s.computed||s.static||!("Identifier"===a.type&&"constructor"===a.name||"Literal"===a.type&&"constructor"===a.value)?s.static&&"Identifier"===a.type&&"prototype"===a.name&&this.raise(a.start,"Classes may not have a static property named prototype"):("method"!==s.kind&&this.raise(a.start,"Constructor can't have get/set modifier"),n&&this.raise(a.start,"Constructor can't be a generator"),r&&this.raise(a.start,"Constructor can't be an async method"),s.kind="constructor",o=e),this.parseClassMethod(s,n,r,o),"get"===s.kind&&0!==s.value.params.length&&this.raiseRecoverable(s.value.start,"getter should have no params"),"set"===s.kind&&1!==s.value.params.length&&this.raiseRecoverable(s.value.start,"setter should have exactly one param"),"set"===s.kind&&"RestElement"===s.value.params[0].type&&this.raiseRecoverable(s.value.params[0].start,"Setter cannot use rest params"),s},z.parseClassMethod=function(e,t,s,i){return e.value=this.parseMethod(t,s,i),this.finishNode(e,"MethodDefinition")},z.parseClassId=function(e,t){this.type===v.name?(e.id=this.parseIdent(),t&&this.checkLVal(e.id,2,!1)):(!0===t&&this.unexpected(),e.id=null)},z.parseClassSuper=function(e){e.superClass=this.eat(v._extends)?this.parseExprSubscripts():null},z.parseExport=function(e,t){if(this.next(),this.eat(v.star))return this.expectContextual("from"),this.type!==v.string&&this.unexpected(),e.source=this.parseExprAtom(),this.semicolon(),this.finishNode(e,"ExportAllDeclaration");if(this.eat(v._default)){var s;if(this.checkExport(t,"default",this.lastTokStart),this.type===v._function||(s=this.isAsyncFunction())){var i=this.startNode();this.next(),s&&this.next(),e.declaration=this.parseFunction(i,4|q,!1,s)}else if(this.type===v._class){var n=this.startNode();e.declaration=this.parseClass(n,"nullableID")}else e.declaration=this.parseMaybeAssign(),this.semicolon();return this.finishNode(e,"ExportDefaultDeclaration")}if(this.shouldParseExportStatement())e.declaration=this.parseStatement(null),"VariableDeclaration"===e.declaration.type?this.checkVariableExport(t,e.declaration.declarations):this.checkExport(t,e.declaration.id.name,e.declaration.id.start),e.specifiers=[],e.source=null;else{if(e.declaration=null,e.specifiers=this.parseExportSpecifiers(t),this.eatContextual("from"))this.type!==v.string&&this.unexpected(),e.source=this.parseExprAtom();else{for(var r=0,a=e.specifiers;r<a.length;r+=1){var o=a[r];this.checkUnreserved(o.local),this.checkLocalExport(o.local)}e.source=null}this.semicolon()}return this.finishNode(e,"ExportNamedDeclaration")},z.checkExport=function(e,t,s){e&&(_(e,t)&&this.raiseRecoverable(s,"Duplicate export '"+t+"'"),e[t]=!0)},z.checkPatternExport=function(e,t){var s=t.type;if("Identifier"===s)this.checkExport(e,t.name,t.start);else if("ObjectPattern"===s)for(var i=0,n=t.properties;i<n.length;i+=1){var r=n[i];this.checkPatternExport(e,r)}else if("ArrayPattern"===s)for(var a=0,o=t.elements;a<o.length;a+=1){var h=o[a];h&&this.checkPatternExport(e,h)}else"Property"===s?this.checkPatternExport(e,t.value):"AssignmentPattern"===s?this.checkPatternExport(e,t.left):"RestElement"===s?this.checkPatternExport(e,t.argument):"ParenthesizedExpression"===s&&this.checkPatternExport(e,t.expression)},z.checkVariableExport=function(e,t){if(e)for(var s=0,i=t;s<i.length;s+=1){var n=i[s];this.checkPatternExport(e,n.id)}},z.shouldParseExportStatement=function(){return"var"===this.type.keyword||"const"===this.type.keyword||"class"===this.type.keyword||"function"===this.type.keyword||this.isLet()||this.isAsyncFunction()},z.parseExportSpecifiers=function(e){var t=[],s=!0;for(this.expect(v.braceL);!this.eat(v.braceR);){if(s)s=!1;else if(this.expect(v.comma),this.afterTrailingComma(v.braceR))break;var i=this.startNode();i.local=this.parseIdent(!0),i.exported=this.eatContextual("as")?this.parseIdent(!0):i.local,this.checkExport(e,i.exported.name,i.exported.start),t.push(this.finishNode(i,"ExportSpecifier"))}return t},z.parseImport=function(e){return this.next(),this.type===v.string?(e.specifiers=H,e.source=this.parseExprAtom()):(e.specifiers=this.parseImportSpecifiers(),this.expectContextual("from"),e.source=this.type===v.string?this.parseExprAtom():this.unexpected()),this.semicolon(),this.finishNode(e,"ImportDeclaration")},z.parseImportSpecifiers=function(){var e=[],t=!0;if(this.type===v.name){var s=this.startNode();if(s.local=this.parseIdent(),this.checkLVal(s.local,2),e.push(this.finishNode(s,"ImportDefaultSpecifier")),!this.eat(v.comma))return e}if(this.type===v.star){var i=this.startNode();return this.next(),this.expectContextual("as"),i.local=this.parseIdent(),this.checkLVal(i.local,2),e.push(this.finishNode(i,"ImportNamespaceSpecifier")),e}for(this.expect(v.braceL);!this.eat(v.braceR);){if(t)t=!1;else if(this.expect(v.comma),this.afterTrailingComma(v.braceR))break;var n=this.startNode();n.imported=this.parseIdent(!0),this.eatContextual("as")?n.local=this.parseIdent():(this.checkUnreserved(n.imported),n.local=n.imported),this.checkLVal(n.local,2),e.push(this.finishNode(n,"ImportSpecifier"))}return e},z.adaptDirectivePrologue=function(e){for(var t=0;t<e.length&&this.isDirectiveCandidate(e[t]);++t)e[t].directive=e[t].expression.raw.slice(1,-1)},z.isDirectiveCandidate=function(e){return"ExpressionStatement"===e.type&&"Literal"===e.expression.type&&"string"==typeof e.expression.value&&('"'===this.input[e.start]||"'"===this.input[e.start])};var X=V.prototype;X.toAssignable=function(e,t,s){if(this.options.ecmaVersion>=6&&e)switch(e.type){case"Identifier":this.inAsync&&"await"===e.name&&this.raise(e.start,"Cannot use 'await' as identifier inside an async function");break;case"ObjectPattern":case"ArrayPattern":case"RestElement":break;case"ObjectExpression":e.type="ObjectPattern",s&&this.checkPatternErrors(s,!0);for(var i=0,n=e.properties;i<n.length;i+=1){var r=n[i];this.toAssignable(r,t),"RestElement"!==r.type||"ArrayPattern"!==r.argument.type&&"ObjectPattern"!==r.argument.type||this.raise(r.argument.start,"Unexpected token")}break;case"Property":"init"!==e.kind&&this.raise(e.key.start,"Object pattern can't contain getter or setter"),this.toAssignable(e.value,t);break;case"ArrayExpression":e.type="ArrayPattern",s&&this.checkPatternErrors(s,!0),this.toAssignableList(e.elements,t);break;case"SpreadElement":e.type="RestElement",this.toAssignable(e.argument,t),"AssignmentPattern"===e.argument.type&&this.raise(e.argument.start,"Rest elements cannot have a default value");break;case"AssignmentExpression":"="!==e.operator&&this.raise(e.left.end,"Only '=' operator can be used for specifying default value."),e.type="AssignmentPattern",delete e.operator,this.toAssignable(e.left,t);case"AssignmentPattern":break;case"ParenthesizedExpression":this.toAssignable(e.expression,t,s);break;case"MemberExpression":if(!t)break;default:this.raise(e.start,"Assigning to rvalue")}else s&&this.checkPatternErrors(s,!0);return e},X.toAssignableList=function(e,t){for(var s=e.length,i=0;i<s;i++){var n=e[i];n&&this.toAssignable(n,t)}if(s){var r=e[s-1];6===this.options.ecmaVersion&&t&&r&&"RestElement"===r.type&&"Identifier"!==r.argument.type&&this.unexpected(r.argument.start)}return e},X.parseSpread=function(e){var t=this.startNode();return this.next(),t.argument=this.parseMaybeAssign(!1,e),this.finishNode(t,"SpreadElement")},X.parseRestBinding=function(){var e=this.startNode();return this.next(),6===this.options.ecmaVersion&&this.type!==v.name&&this.unexpected(),e.argument=this.parseBindingAtom(),this.finishNode(e,"RestElement")},X.parseBindingAtom=function(){if(this.options.ecmaVersion>=6)switch(this.type){case v.bracketL:var e=this.startNode();return this.next(),e.elements=this.parseBindingList(v.bracketR,!0,!0),this.finishNode(e,"ArrayPattern");case v.braceL:return this.parseObj(!0)}return this.parseIdent()},X.parseBindingList=function(e,t,s){for(var i=[],n=!0;!this.eat(e);)if(n?n=!1:this.expect(v.comma),t&&this.type===v.comma)i.push(null);else{if(s&&this.afterTrailingComma(e))break;if(this.type===v.ellipsis){var r=this.parseRestBinding();this.parseBindingListItem(r),i.push(r),this.type===v.comma&&this.raise(this.start,"Comma is not permitted after the rest element"),this.expect(e);break}var a=this.parseMaybeDefault(this.start,this.startLoc);this.parseBindingListItem(a),i.push(a)}return i},X.parseBindingListItem=function(e){return e},X.parseMaybeDefault=function(e,t,s){if(s=s||this.parseBindingAtom(),this.options.ecmaVersion<6||!this.eat(v.eq))return s;var i=this.startNodeAt(e,t);return i.left=s,i.right=this.parseMaybeAssign(),this.finishNode(i,"AssignmentPattern")},X.checkLVal=function(e,t,s){switch(void 0===t&&(t=0),e.type){case"Identifier":2===t&&"let"===e.name&&this.raiseRecoverable(e.start,"let is disallowed as a lexically bound name"),this.strict&&this.reservedWordsStrictBind.test(e.name)&&this.raiseRecoverable(e.start,(t?"Binding ":"Assigning to ")+e.name+" in strict mode"),s&&(_(s,e.name)&&this.raiseRecoverable(e.start,"Argument name clash"),s[e.name]=!0),0!==t&&5!==t&&this.declareName(e.name,t,e.start);break;case"MemberExpression":t&&this.raiseRecoverable(e.start,"Binding member expression");break;case"ObjectPattern":for(var i=0,n=e.properties;i<n.length;i+=1){var r=n[i];this.checkLVal(r,t,s)}break;case"Property":this.checkLVal(e.value,t,s);break;case"ArrayPattern":for(var a=0,o=e.elements;a<o.length;a+=1){var h=o[a];h&&this.checkLVal(h,t,s)}break;case"AssignmentPattern":this.checkLVal(e.left,t,s);break;case"RestElement":this.checkLVal(e.argument,t,s);break;case"ParenthesizedExpression":this.checkLVal(e.expression,t,s);break;default:this.raise(e.start,(t?"Binding":"Assigning to")+" rvalue")}};var Y=V.prototype;Y.checkPropClash=function(e,t,s){if(!(this.options.ecmaVersion>=9&&"SpreadElement"===e.type||this.options.ecmaVersion>=6&&(e.computed||e.method||e.shorthand))){var i,n=e.key;switch(n.type){case"Identifier":i=n.name;break;case"Literal":i=String(n.value);break;default:return}var r=e.kind;if(this.options.ecmaVersion>=6)"__proto__"===i&&"init"===r&&(t.proto&&(s?s.doubleProto<0&&(s.doubleProto=n.start):this.raiseRecoverable(n.start,"Redefinition of __proto__ property")),t.proto=!0);else{var a=t[i="$"+i];if(a)("init"===r?this.strict&&a.init||a.get||a.set:a.init||a[r])&&this.raiseRecoverable(n.start,"Redefinition of property");else a=t[i]={init:!1,get:!1,set:!1};a[r]=!0}}},Y.parseExpression=function(e,t){var s=this.start,i=this.startLoc,n=this.parseMaybeAssign(e,t);if(this.type===v.comma){var r=this.startNodeAt(s,i);for(r.expressions=[n];this.eat(v.comma);)r.expressions.push(this.parseMaybeAssign(e,t));return this.finishNode(r,"SequenceExpression")}return n},Y.parseMaybeAssign=function(e,t,s){if(this.isContextual("yield")){if(this.inGenerator)return this.parseYield(e);this.exprAllowed=!1}var i=!1,n=-1,r=-1;t?(n=t.parenthesizedAssign,r=t.trailingComma,t.parenthesizedAssign=t.trailingComma=-1):(t=new U,i=!0);var a=this.start,o=this.startLoc;this.type!==v.parenL&&this.type!==v.name||(this.potentialArrowAt=this.start);var h=this.parseMaybeConditional(e,t);if(s&&(h=s.call(this,h,a,o)),this.type.isAssign){var l=this.startNodeAt(a,o);return l.operator=this.value,l.left=this.type===v.eq?this.toAssignable(h,!1,t):h,i||(t.parenthesizedAssign=t.trailingComma=t.doubleProto=-1),t.shorthandAssign>=l.left.start&&(t.shorthandAssign=-1),this.checkLVal(h),this.next(),l.right=this.parseMaybeAssign(e),this.finishNode(l,"AssignmentExpression")}return i&&this.checkExpressionErrors(t,!0),n>-1&&(t.parenthesizedAssign=n),r>-1&&(t.trailingComma=r),h},Y.parseMaybeConditional=function(e,t){var s=this.start,i=this.startLoc,n=this.parseExprOps(e,t);if(this.checkExpressionErrors(t))return n;if(this.eat(v.question)){var r=this.startNodeAt(s,i);return r.test=n,r.consequent=this.parseMaybeAssign(),this.expect(v.colon),r.alternate=this.parseMaybeAssign(e),this.finishNode(r,"ConditionalExpression")}return n},Y.parseExprOps=function(e,t){var s=this.start,i=this.startLoc,n=this.parseMaybeUnary(t,!1);return this.checkExpressionErrors(t)||n.start===s&&"ArrowFunctionExpression"===n.type?n:this.parseExprOp(n,s,i,-1,e)},Y.parseExprOp=function(e,t,s,i,n){var r=this.type.binop;if(null!=r&&(!n||this.type!==v._in)&&r>i){var a=this.type===v.logicalOR||this.type===v.logicalAND,o=this.value;this.next();var h=this.start,l=this.startLoc,c=this.parseExprOp(this.parseMaybeUnary(null,!1),h,l,r,n),u=this.buildBinary(t,s,e,c,o,a);return this.parseExprOp(u,t,s,i,n)}return e},Y.buildBinary=function(e,t,s,i,n,r){var a=this.startNodeAt(e,t);return a.left=s,a.operator=n,a.right=i,this.finishNode(a,r?"LogicalExpression":"BinaryExpression")},Y.parseMaybeUnary=function(e,t){var s,i=this.start,n=this.startLoc;if(this.isContextual("await")&&(this.inAsync||!this.inFunction&&this.options.allowAwaitOutsideFunction))s=this.parseAwait(),t=!0;else if(this.type.prefix){var r=this.startNode(),a=this.type===v.incDec;r.operator=this.value,r.prefix=!0,this.next(),r.argument=this.parseMaybeUnary(null,!0),this.checkExpressionErrors(e,!0),a?this.checkLVal(r.argument):this.strict&&"delete"===r.operator&&"Identifier"===r.argument.type?this.raiseRecoverable(r.start,"Deleting local variable in strict mode"):t=!0,s=this.finishNode(r,a?"UpdateExpression":"UnaryExpression")}else{if(s=this.parseExprSubscripts(e),this.checkExpressionErrors(e))return s;for(;this.type.postfix&&!this.canInsertSemicolon();){var o=this.startNodeAt(i,n);o.operator=this.value,o.prefix=!1,o.argument=s,this.checkLVal(s),this.next(),s=this.finishNode(o,"UpdateExpression")}}return!t&&this.eat(v.starstar)?this.buildBinary(i,n,s,this.parseMaybeUnary(null,!1),"**",!1):s},Y.parseExprSubscripts=function(e){var t=this.start,s=this.startLoc,i=this.parseExprAtom(e);if("ArrowFunctionExpression"===i.type&&")"!==this.input.slice(this.lastTokStart,this.lastTokEnd))return i;var n=this.parseSubscripts(i,t,s);return e&&"MemberExpression"===n.type&&(e.parenthesizedAssign>=n.start&&(e.parenthesizedAssign=-1),e.parenthesizedBind>=n.start&&(e.parenthesizedBind=-1)),n},Y.parseSubscripts=function(e,t,s,i){for(var n=this.options.ecmaVersion>=8&&"Identifier"===e.type&&"async"===e.name&&this.lastTokEnd===e.end&&!this.canInsertSemicolon()&&"async"===this.input.slice(e.start,e.end);;){var r=this.parseSubscript(e,t,s,i,n);if(r===e||"ArrowFunctionExpression"===r.type)return r;e=r}},Y.parseSubscript=function(e,t,s,i,n){var r=this.eat(v.bracketL);if(r||this.eat(v.dot)){var a=this.startNodeAt(t,s);a.object=e,a.property=r?this.parseExpression():this.parseIdent("never"!==this.options.allowReserved),a.computed=!!r,r&&this.expect(v.bracketR),e=this.finishNode(a,"MemberExpression")}else if(!i&&this.eat(v.parenL)){var o=new U,h=this.yieldPos,l=this.awaitPos,c=this.awaitIdentPos;this.yieldPos=0,this.awaitPos=0,this.awaitIdentPos=0;var u=this.parseExprList(v.parenR,this.options.ecmaVersion>=8,!1,o);if(n&&!this.canInsertSemicolon()&&this.eat(v.arrow))return this.checkPatternErrors(o,!1),this.checkYieldAwaitInDefaultParams(),this.awaitIdentPos>0&&this.raise(this.awaitIdentPos,"Cannot use 'await' as identifier inside an async function"),this.yieldPos=h,this.awaitPos=l,this.awaitIdentPos=c,this.parseArrowExpression(this.startNodeAt(t,s),u,!0);this.checkExpressionErrors(o,!0),this.yieldPos=h||this.yieldPos,this.awaitPos=l||this.awaitPos,this.awaitIdentPos=c||this.awaitIdentPos;var d=this.startNodeAt(t,s);d.callee=e,d.arguments=u,e=this.finishNode(d,"CallExpression")}else if(this.type===v.backQuote){var p=this.startNodeAt(t,s);p.tag=e,p.quasi=this.parseTemplate({isTagged:!0}),e=this.finishNode(p,"TaggedTemplateExpression")}return e},Y.parseExprAtom=function(e){this.type===v.slash&&this.readRegexp();var t,s=this.potentialArrowAt===this.start;switch(this.type){case v._super:return this.allowSuper||this.raise(this.start,"'super' keyword outside a method"),t=this.startNode(),this.next(),this.type!==v.parenL||this.allowDirectSuper||this.raise(t.start,"super() call outside constructor of a subclass"),this.type!==v.dot&&this.type!==v.bracketL&&this.type!==v.parenL&&this.unexpected(),this.finishNode(t,"Super");case v._this:return t=this.startNode(),this.next(),this.finishNode(t,"ThisExpression");case v.name:var i=this.start,n=this.startLoc,r=this.containsEsc,a=this.parseIdent(!1);if(this.options.ecmaVersion>=8&&!r&&"async"===a.name&&!this.canInsertSemicolon()&&this.eat(v._function))return this.parseFunction(this.startNodeAt(i,n),0,!1,!0);if(s&&!this.canInsertSemicolon()){if(this.eat(v.arrow))return this.parseArrowExpression(this.startNodeAt(i,n),[a],!1);if(this.options.ecmaVersion>=8&&"async"===a.name&&this.type===v.name&&!r)return a=this.parseIdent(!1),!this.canInsertSemicolon()&&this.eat(v.arrow)||this.unexpected(),this.parseArrowExpression(this.startNodeAt(i,n),[a],!0)}return a;case v.regexp:var o=this.value;return(t=this.parseLiteral(o.value)).regex={pattern:o.pattern,flags:o.flags},t;case v.num:case v.string:return this.parseLiteral(this.value);case v._null:case v._true:case v._false:return(t=this.startNode()).value=this.type===v._null?null:this.type===v._true,t.raw=this.type.keyword,this.next(),this.finishNode(t,"Literal");case v.parenL:var h=this.start,l=this.parseParenAndDistinguishExpression(s);return e&&(e.parenthesizedAssign<0&&!this.isSimpleAssignTarget(l)&&(e.parenthesizedAssign=h),e.parenthesizedBind<0&&(e.parenthesizedBind=h)),l;case v.bracketL:return t=this.startNode(),this.next(),t.elements=this.parseExprList(v.bracketR,!0,!0,e),this.finishNode(t,"ArrayExpression");case v.braceL:return this.parseObj(!1,e);case v._function:return t=this.startNode(),this.next(),this.parseFunction(t,0);case v._class:return this.parseClass(this.startNode(),!1);case v._new:return this.parseNew();case v.backQuote:return this.parseTemplate();case v._import:return this.options.ecmaVersion>=11?this.parseExprImport():this.unexpected();default:this.unexpected()}},Y.parseExprImport=function(){var e=this.startNode();switch(this.next(),this.type){case v.parenL:return this.parseDynamicImport(e);default:this.unexpected()}},Y.parseDynamicImport=function(e){if(this.next(),e.source=this.parseMaybeAssign(),!this.eat(v.parenR)){var t=this.start;this.eat(v.comma)&&this.eat(v.parenR)?this.raiseRecoverable(t,"Trailing comma is not allowed in import()"):this.unexpected(t)}return this.finishNode(e,"ImportExpression")},Y.parseLiteral=function(e){var t=this.startNode();return t.value=e,t.raw=this.input.slice(this.start,this.end),110===t.raw.charCodeAt(t.raw.length-1)&&(t.bigint=t.raw.slice(0,-1)),this.next(),this.finishNode(t,"Literal")},Y.parseParenExpression=function(){this.expect(v.parenL);var e=this.parseExpression();return this.expect(v.parenR),e},Y.parseParenAndDistinguishExpression=function(e){var t,s=this.start,i=this.startLoc,n=this.options.ecmaVersion>=8;if(this.options.ecmaVersion>=6){this.next();var r,a=this.start,o=this.startLoc,h=[],l=!0,c=!1,u=new U,d=this.yieldPos,p=this.awaitPos;for(this.yieldPos=0,this.awaitPos=0;this.type!==v.parenR;){if(l?l=!1:this.expect(v.comma),n&&this.afterTrailingComma(v.parenR,!0)){c=!0;break}if(this.type===v.ellipsis){r=this.start,h.push(this.parseParenItem(this.parseRestBinding())),this.type===v.comma&&this.raise(this.start,"Comma is not permitted after the rest element");break}h.push(this.parseMaybeAssign(!1,u,this.parseParenItem))}var f=this.start,m=this.startLoc;if(this.expect(v.parenR),e&&!this.canInsertSemicolon()&&this.eat(v.arrow))return this.checkPatternErrors(u,!1),this.checkYieldAwaitInDefaultParams(),this.yieldPos=d,this.awaitPos=p,this.parseParenArrowList(s,i,h);h.length&&!c||this.unexpected(this.lastTokStart),r&&this.unexpected(r),this.checkExpressionErrors(u,!0),this.yieldPos=d||this.yieldPos,this.awaitPos=p||this.awaitPos,h.length>1?((t=this.startNodeAt(a,o)).expressions=h,this.finishNodeAt(t,"SequenceExpression",f,m)):t=h[0]}else t=this.parseParenExpression();if(this.options.preserveParens){var g=this.startNodeAt(s,i);return g.expression=t,this.finishNode(g,"ParenthesizedExpression")}return t},Y.parseParenItem=function(e){return e},Y.parseParenArrowList=function(e,t,s){return this.parseArrowExpression(this.startNodeAt(e,t),s)};var Q=[];Y.parseNew=function(){this.containsEsc&&this.raiseRecoverable(this.start,"Escape sequence in keyword new");var e=this.startNode(),t=this.parseIdent(!0);if(this.options.ecmaVersion>=6&&this.eat(v.dot)){e.meta=t;var s=this.containsEsc;return e.property=this.parseIdent(!0),("target"!==e.property.name||s)&&this.raiseRecoverable(e.property.start,"The only valid meta property for new is new.target"),this.inNonArrowFunction()||this.raiseRecoverable(e.start,"new.target can only be used in functions"),this.finishNode(e,"MetaProperty")}var i=this.start,n=this.startLoc,r=this.type===v._import;return e.callee=this.parseSubscripts(this.parseExprAtom(),i,n,!0),r&&"ImportExpression"===e.callee.type&&this.raise(i,"Cannot use new with import()"),this.eat(v.parenL)?e.arguments=this.parseExprList(v.parenR,this.options.ecmaVersion>=8,!1):e.arguments=Q,this.finishNode(e,"NewExpression")},Y.parseTemplateElement=function(e){var t=e.isTagged,s=this.startNode();return this.type===v.invalidTemplate?(t||this.raiseRecoverable(this.start,"Bad escape sequence in untagged template literal"),s.value={raw:this.value,cooked:null}):s.value={raw:this.input.slice(this.start,this.end).replace(/\r\n?/g,"\n"),cooked:this.value},this.next(),s.tail=this.type===v.backQuote,this.finishNode(s,"TemplateElement")},Y.parseTemplate=function(e){void 0===e&&(e={});var t=e.isTagged;void 0===t&&(t=!1);var s=this.startNode();this.next(),s.expressions=[];var i=this.parseTemplateElement({isTagged:t});for(s.quasis=[i];!i.tail;)this.type===v.eof&&this.raise(this.pos,"Unterminated template literal"),this.expect(v.dollarBraceL),s.expressions.push(this.parseExpression()),this.expect(v.braceR),s.quasis.push(i=this.parseTemplateElement({isTagged:t}));return this.next(),this.finishNode(s,"TemplateLiteral")},Y.isAsyncProp=function(e){return!e.computed&&"Identifier"===e.key.type&&"async"===e.key.name&&(this.type===v.name||this.type===v.num||this.type===v.string||this.type===v.bracketL||this.type.keyword||this.options.ecmaVersion>=9&&this.type===v.star)&&!b.test(this.input.slice(this.lastTokEnd,this.start))},Y.parseObj=function(e,t){var s=this.startNode(),i=!0,n={};for(s.properties=[],this.next();!this.eat(v.braceR);){if(i)i=!1;else if(this.expect(v.comma),this.options.ecmaVersion>=5&&this.afterTrailingComma(v.braceR))break;var r=this.parseProperty(e,t);e||this.checkPropClash(r,n,t),s.properties.push(r)}return this.finishNode(s,e?"ObjectPattern":"ObjectExpression")},Y.parseProperty=function(e,t){var s,i,n,r,a=this.startNode();if(this.options.ecmaVersion>=9&&this.eat(v.ellipsis))return e?(a.argument=this.parseIdent(!1),this.type===v.comma&&this.raise(this.start,"Comma is not permitted after the rest element"),this.finishNode(a,"RestElement")):(this.type===v.parenL&&t&&(t.parenthesizedAssign<0&&(t.parenthesizedAssign=this.start),t.parenthesizedBind<0&&(t.parenthesizedBind=this.start)),a.argument=this.parseMaybeAssign(!1,t),this.type===v.comma&&t&&t.trailingComma<0&&(t.trailingComma=this.start),this.finishNode(a,"SpreadElement"));this.options.ecmaVersion>=6&&(a.method=!1,a.shorthand=!1,(e||t)&&(n=this.start,r=this.startLoc),e||(s=this.eat(v.star)));var o=this.containsEsc;return this.parsePropertyName(a),!e&&!o&&this.options.ecmaVersion>=8&&!s&&this.isAsyncProp(a)?(i=!0,s=this.options.ecmaVersion>=9&&this.eat(v.star),this.parsePropertyName(a,t)):i=!1,this.parsePropertyValue(a,e,s,i,n,r,t,o),this.finishNode(a,"Property")},Y.parsePropertyValue=function(e,t,s,i,n,r,a,o){if((s||i)&&this.type===v.colon&&this.unexpected(),this.eat(v.colon))e.value=t?this.parseMaybeDefault(this.start,this.startLoc):this.parseMaybeAssign(!1,a),e.kind="init";else if(this.options.ecmaVersion>=6&&this.type===v.parenL)t&&this.unexpected(),e.kind="init",e.method=!0,e.value=this.parseMeth