code-server/lib/vscode/extensions/ms-vscode.js-debug/src/vendor/acorn-loose.js

Run VS Code on a remote server.

(function(c,s){typeof exports=="object"&&typeof module<"u"?s(exports,require("./acorn")):typeof define=="function"&&define.amd?define(["exports","acorn"],s):(c=typeof globalThis<"u"?globalThis:c||self,s((c.acorn=c.acorn||{},c.acorn.loose={}),c.acorn))})(exports,function(c,s){"use strict";var N="\u2716";function m(t){return t.name===N}function S(){}var u=function(e,i){if(i===void 0&&(i={}),this.toks=this.constructor.BaseParser.tokenizer(e,i),this.options=this.toks.options,this.input=this.toks.input,this.tok=this.last={type:s.tokTypes.eof,start:0,end:0},this.tok.validateRegExpFlags=S,this.tok.validateRegExpPattern=S,this.options.locations){var r=this.toks.curPosition();this.tok.loc=new s.SourceLocation(this.toks,r,r)}this.ahead=[],this.context=[],this.curIndent=0,this.curLineStart=0,this.nextLineStart=this.lineEnd(this.curLineStart)+1,this.inAsync=!1,this.inGenerator=!1,this.inFunction=!1};u.prototype.startNode=function(){return new s.Node(this.toks,this.tok.start,this.options.locations?this.tok.loc.start:null)},u.prototype.storeCurrentPos=function(){return this.options.locations?[this.tok.start,this.tok.loc.start]:this.tok.start},u.prototype.startNodeAt=function(e){return this.options.locations?new s.Node(this.toks,e[0],e[1]):new s.Node(this.toks,e)},u.prototype.finishNode=function(e,i){return e.type=i,e.end=this.last.end,this.options.locations&&(e.loc.end=this.last.loc.end),this.options.ranges&&(e.range[1]=this.last.end),e},u.prototype.dummyNode=function(e){var i=this.startNode();return i.type=e,i.end=i.start,this.options.locations&&(i.loc.end=i.loc.start),this.options.ranges&&(i.range[1]=i.start),this.last={type:s.tokTypes.name,start:i.start,end:i.start,loc:i.loc},i},u.prototype.dummyIdent=function(){var e=this.dummyNode("Identifier");return e.name=N,e},u.prototype.dummyString=function(){var e=this.dummyNode("Literal");return e.value=e.raw=N,e},u.prototype.eat=function(e){return this.tok.type===e?(this.next(),!0):!1},u.prototype.isContextual=function(e){return this.tok.type===s.tokTypes.name&&this.tok.value===e},u.prototype.eatContextual=function(e){return this.tok.value===e&&this.eat(s.tokTypes.name)},u.prototype.canInsertSemicolon=function(){return this.tok.type===s.tokTypes.eof||this.tok.type===s.tokTypes.braceR||s.lineBreak.test(this.input.slice(this.last.end,this.tok.start))},u.prototype.semicolon=function(){return this.eat(s.tokTypes.semi)},u.prototype.expect=function(e){if(this.eat(e))return!0;for(var i=1;i<=2;i++)if(this.lookAhead(i).type===e){for(var r=0;r<i;r++)this.next();return!0}},u.prototype.pushCx=function(){this.context.push(this.curIndent)},u.prototype.popCx=function(){this.curIndent=this.context.pop()},u.prototype.lineEnd=function(e){for(;e<this.input.length&&!s.isNewLine(this.input.charCodeAt(e));)++e;return e},u.prototype.indentationAfter=function(e){for(var i=0;;++e){var r=this.input.charCodeAt(e);if(r===32)++i;else if(r===9)i+=this.options.tabSize;else return i}},u.prototype.closes=function(e,i,r,o){return this.tok.type===e||this.tok.type===s.tokTypes.eof?!0:r!==this.curLineStart&&this.curIndent<i&&this.tokenStartsLine()&&(!o||this.nextLineStart>=this.input.length||this.indentationAfter(this.nextLineStart)<i)},u.prototype.tokenStartsLine=function(){for(var e=this.tok.start-1;e>=this.curLineStart;--e){var i=this.input.charCodeAt(e);if(i!==9&&i!==32)return!1}return!0},u.prototype.extend=function(e,i){this[e]=i(this[e])},u.prototype.parse=function(){return this.next(),this.parseTopLevel()},u.extend=function(){for(var e=[],i=arguments.length;i--;)e[i]=arguments[i];for(var r=this,o=0;o<e.length;o++)r=e[o](r);return r},u.parse=function(e,i){return new this(e,i).parse()},u.BaseParser=s.Parser;var b=u.prototype;function E(t){return t<14&&t>8||t===32||t===160||s.isNewLine(t)}b.next=function(){if(this.last=this.tok,this.ahead.length?this.tok=this.ahead.shift():this.tok=this.readToken(),this.tok.start>=this.nextLineStart){for(;this.tok.start>=this.nextLineStart;)this.curLineStart=this.nextLineStart,this.nextLineStart=this.lineEnd(this.curLineStart)+1;this.curIndent=this.indentationAfter(this.curLineStart)}},b.readToken=function(){for(;;)try{return this.toks.next(),this.toks.type===s.tokTypes.dot&&this.input.substr(this.toks.end,1)==="."&&this.options.ecmaVersion>=6&&(this.toks.end++,this.toks.type=s.tokTypes.ellipsis),new s.Token(this.toks)}catch(n){if(!(n instanceof SyntaxError))throw n;var t=n.message,e=n.raisedAt,i=!0;if(/unterminated/i.test(t))if(e=this.lineEnd(n.pos+1),/string/.test(t))i={start:n.pos,end:e,type:s.tokTypes.string,value:this.input.slice(n.pos+1,e)};else if(/regular expr/i.test(t)){var r=this.input.slice(n.pos,e);try{r=new RegExp(r)}catch{}i={start:n.pos,end:e,type:s.tokTypes.regexp,value:r}}else/template/.test(t)?i={start:n.pos,end:e,type:s.tokTypes.template,value:this.input.slice(n.pos,e)}:i=!1;else if(/invalid (unicode|regexp|number)|expecting unicode|octal literal|is reserved|directly after number|expected number in radix/i.test(t))for(;e<this.input.length&&!E(this.input.charCodeAt(e));)++e;else if(/character escape|expected hexadecimal/i.test(t))for(;e<this.input.length;){var o=this.input.charCodeAt(e++);if(o===34||o===39||s.isNewLine(o))break}else if(/unexpected character/i.test(t))e++,i=!1;else if(/regular expression/i.test(t))i=!0;else throw n;if(this.resetTo(e),i===!0&&(i={start:e,end:e,type:s.tokTypes.name,value:N}),i)return this.options.locations&&(i.loc=new s.SourceLocation(this.toks,s.getLineInfo(this.input,i.start),s.getLineInfo(this.input,i.end))),i}},b.resetTo=function(t){this.toks.pos=t,this.toks.containsEsc=!1;var e=this.input.charAt(t-1);if(this.toks.exprAllowed=!e||/[[{(,;:?/*=+\-~!|&%^<>]/.test(e)||/[enwfd]/.test(e)&&/\b(case|else|return|throw|new|in|(instance|type)?of|delete|void)$/.test(this.input.slice(t-10,t)),this.options.locations){this.toks.curLine=1,this.toks.lineStart=s.lineBreakG.lastIndex=0;for(var i;(i=s.lineBreakG.exec(this.input))&&i.index<t;)++this.toks.curLine,this.toks.lineStart=i.index+i[0].length}},b.lookAhead=function(t){for(;t>this.ahead.length;)this.ahead.push(this.readToken());return this.ahead[t-1]};var f=u.prototype;f.parseTopLevel=function(){var t=this.startNodeAt(this.options.locations?[0,s.getLineInfo(this.input,0)]:0);for(t.body=[];this.tok.type!==s.tokTypes.eof;)t.body.push(this.parseStatement());return this.toks.adaptDirectivePrologue(t.body),this.last=this.tok,t.sourceType=this.options.sourceType,this.finishNode(t,"Program")},f.parseStatement=function(){var t=this.tok.type,e=this.startNode(),i;switch(this.toks.isLet()&&(t=s.tokTypes._var,i="let"),t){case s.tokTypes._break:case s.tokTypes._continue:this.next();var r=t===s.tokTypes._break;return this.semicolon()||this.canInsertSemicolon()?e.label=null:(e.label=this.tok.type===s.tokTypes.name?this.parseIdent():null,this.semicolon()),this.finishNode(e,r?"BreakStatement":"ContinueStatement");case s.tokTypes._debugger:return this.next(),this.semicolon(),this.finishNode(e,"DebuggerStatement");case s.tokTypes._do:return this.next(),e.body=this.parseStatement(),e.test=this.eat(s.tokTypes._while)?this.parseParenExpression():this.dummyIdent(),this.semicolon(),this.finishNode(e,"DoWhileStatement");case s.tokTypes._for:this.next();var o=this.options.ecmaVersion>=9&&this.eatContextual("await");if(this.pushCx(),this.expect(s.tokTypes.parenL),this.tok.type===s.tokTypes.semi)return this.parseFor(e,null);var n=this.toks.isLet();if(n||this.tok.type===s.tokTypes._var||this.tok.type===s.tokTypes._const){var p=this.parseVar(this.startNode(),!0,n?"let":this.tok.value);return p.declarations.length===1&&(this.tok.type===s.tokTypes._in||this.isContextual("of"))?(this.options.ecmaVersion>=9&&this.tok.type!==s.tokTypes._in&&(e.await=o),this.parseForIn(e,p)):this.parseFor(e,p)}var h=this.parseExpression(!0);return this.tok.type===s.tokTypes._in||this.isContextual("of")?(this.options.ecmaVersion>=9&&this.tok.type!==s.tokTypes._in&&(e.await=o),this.parseForIn(e,this.toAssignable(h))):this.parseFor(e,h);case s.tokTypes._function:return this.next(),this.parseFunction(e,!0);case s.tokTypes._if:return this.next(),e.test=this.parseParenExpression(),e.consequent=this.parseStatement(),e.alternate=this.eat(s.tokTypes._else)?this.parseStatement():null,this.finishNode(e,"IfStatement");case s.tokTypes._return:return this.next(),this.eat(s.tokTypes.semi)||this.canInsertSemicolon()?e.argument=null:(e.argument=this.parseExpression(),this.semicolon()),this.finishNode(e,"ReturnStatement");case s.tokTypes._switch:var y=this.curIndent,k=this.curLineStart;this.next(),e.discriminant=this.parseParenExpression(),e.cases=[],this.pushCx(),this.expect(s.tokTypes.braceL);for(var l;!this.closes(s.tokTypes.braceR,y,k,!0);)if(this.tok.type===s.tokTypes._case||this.tok.type===s.tokTypes._default){var v=this.tok.type===s.tokTypes._case;l&&this.finishNode(l,"SwitchCase"),e.cases.push(l=this.startNode()),l.consequent=[],this.next(),v?l.test=this.parseExpression():l.test=null,this.expect(s.tokTypes.colon)}else l||(e.cases.push(l=this.startNode()),l.consequent=[],l.test=null),l.consequent.push(this.parseStatement());return l&&this.finishNode(l,"SwitchCase"),this.popCx(),this.eat(s.tokTypes.braceR),this.finishNode(e,"SwitchStatement");case s.tokTypes._throw:return this.next(),e.argument=this.parseExpression(),this.semicolon(),this.finishNode(e,"ThrowStatement");case s.tokTypes._try:if(this.next(),e.block=this.parseBlock(),e.handler=null,this.tok.type===s.tokTypes._catch){var d=this.startNode();this.next(),this.eat(s.tokTypes.parenL)?(d.param=this.toAssignable(this.parseExprAtom(),!0),this.expect(s.tokTypes.parenR)):d.param=null,d.body=this.parseBlock(),e.handler=this.finishNode(d,"CatchClause")}return e.finalizer=this.eat(s.tokTypes._finally)?this.parseBlock():null,!e.handler&&!e.finalizer?e.block:this.finishNode(e,"TryStatement");case s.tokTypes._var:case s.tokTypes._const:return this.parseVar(e,!1,i||this.tok.value);case s.tokTypes._while:return this.next(),e.test=this.parseParenExpression(),e.body=this.parseStatement(),this.finishNode(e,"WhileStatement");case s.tokTypes._with:return this.next(),e.object=this.parseParenExpression(),e.body=this.parseStatement(),this.finishNode(e,"WithStatement");case s.tokTypes.braceL:return this.parseBlock();case s.tokTypes.semi:return this.next(),this.finishNode(e,"EmptyStatement");case s.tokTypes._class:return this.parseClass(!0);case s.tokTypes._import:if(this.options.ecmaVersion>10){var T=this.lookAhead(1).type;if(T===s.tokTypes.parenL||T===s.tokTypes.dot)return e.expression=this.parseExpression(),this.semicolon(),this.finishNode(e,"ExpressionStatement")}return this.parseImport();case s.tokTypes._export:return this.parseExport();default:if(this.toks.isAsyncFunction())return this.next(),this.next(),this.parseFunction(e,!0,!0);var x=this.parseExpression();return m(x)?(this.next(),this.tok.type===s.tokTypes.eof?this.finishNode(e,"EmptyStatement"):this.parseStatement()):t===s.tokTypes.name&&x.type==="Identifier"&&this.eat(s.tokTypes.colon)?(e.body=this.parseStatement(),e.label=x,this.finishNode(e,"LabeledStatement")):(e.expression=x,this.semicolon(),this.finishNode(e,"ExpressionStatement"))}},f.parseBlock=function(){var t=this.startNode();this.pushCx(),this.expect(s.tokTypes.braceL);var e=this.curIndent,i=this.curLineStart;for(t.body=[];!this.closes(s.tokTypes.braceR,e,i,!0);)t.body.push(this.parseStatement());return this.popCx(),this.eat(s.tokTypes.braceR),this.finishNode(t,"BlockStatement")},f.parseFor=function(t,e){return t.init=e,t.test=t.update=null,this.eat(s.tokTypes.semi)&&this.tok.type!==s.tokTypes.semi&&(t.test=this.parseExpression()),this.eat(s.tokTypes.semi)&&this.tok.type!==s.tokTypes.parenR&&(t.update=this.parseExpression()),this.popCx(),this.expect(s.tokTypes.parenR),t.body=this.parseStatement(),this.finishNode(t,"ForStatement")},f.parseForIn=function(t,e){var i=this.tok.type===s.tokTypes._in?"ForInStatement":"ForOfStatement";return this.next(),t.left=e,t.right=this.parseExpression(),this.popCx(),this.expect(s.tokTypes.parenR),t.body=this.parseStatement(),this.finishNode(t,i)},f.parseVar=function(t,e,i){t.kind=i,this.next(),t.declarations=[];do{var r=this.startNode();r.id=this.options.ecmaVersion>=6?this.toAssignable(this.parseExprAtom(),!0):this.parseIdent(),r.init=this.eat(s.tokTypes.eq)?this.parseMaybeAssign(e):null,t.declarations.push(this.finishNode(r,"VariableDeclarator"))}while(this.eat(s.tokTypes.comma));if(!t.declarations.length){var o=this.startNode();o.id=this.dummyIdent(),t.declarations.push(this.finishNode(o,"VariableDeclarator"))}return e||this.semicolon(),this.finishNode(t,"VariableDeclaration")},f.parseClass=function(t){var e=this.startNode();this.next(),this.tok.type===s.tokTypes.name?e.id=this.parseIdent():t===!0?e.id=this.dummyIdent():e.id=null,e.superClass=this.eat(s.tokTypes._extends)?this.parseExpression():null,e.body=this.startNode(),e.body.body=[],this.pushCx();var i=this.curIndent+1,r=this.curLineStart;for(this.eat(s.tokTypes.braceL),this.curIndent+1<i&&(i=this.curIndent,r=this.curLineStart);!this.closes(s.tokTypes.braceR,i,r);){var o=this.parseClassElement();o&&e.body.body.push(o)}return this.popCx(),this.eat(s.tokTypes.braceR)||(this.last.end=this.tok.start,this.options.locations&&(this.last.loc.end=this.tok.loc.start)),this.semicolon(),this.finishNode(e.body,"ClassBody"),this.finishNode(e,t?"ClassDeclaration":"ClassExpression")},f.parseClassElement=function(){if(this.eat(s.tokTypes.semi))return null;var t=this.options,e=t.ecmaVersion,i=t.locations,r=this.curIndent,o=this.curLineStart,n=this.startNode(),p="",h=!1,y=!1,k="method",l=!1;if(this.eatContextual("static")){if(e>=13&&this.eat(s.tokTypes.braceL))return this.parseClassStaticBlock(n),n;this.isClassElementNameStart()||this.toks.type===s.tokTypes.star?l=!0:p="static"}if(n.static=l,!p&&e>=8&&this.eatContextual("async")&&((this.isClassElementNameStart()||this.toks.type===s.tokTypes.star)&&!this.canInsertSemicolon()?y=!0:p="async"),!p){h=this.eat(s.tokTypes.star);var v=this.toks.value;(this.eatContextual("get")||this.eatContextual("set"))&&(this.isClassElementNameStart()?k=v:p=v)}if(p)n.computed=!1,n.key=this.startNodeAt(i?[this.toks.lastTokStart,this.toks.lastTokStartLoc]:this.toks.lastTokStart),n.key.name=p,this.finishNode(n.key,"Identifier");else if(this.parseClassElementName(n),m(n.key))return m(this.parseMaybeAssign())&&this.next(),this.eat(s.tokTypes.comma),null;if(e<13||this.toks.type===s.tokTypes.parenL||k!=="method"||h||y){var d=!n.computed&&!n.static&&!h&&!y&&k==="method"&&(n.key.type==="Identifier"&&n.key.name==="constructor"||n.key.type==="Literal"&&n.key.value==="constructor");n.kind=d?"constructor":k,n.value=this.parseMethod(h,y),this.finishNode(n,"MethodDefinition")}else{if(this.eat(s.tokTypes.eq))if(this.curLineStart!==o&&this.curIndent<=r&&this.tokenStartsLine())n.value=null;else{var T=this.inAsync,x=this.inGenerator;this.inAsync=!1,this.inGenerator=!1,n.value=this.parseMaybeAssign(),this.inAsync=T,this.inGenerator=x}else n.value=null;this.semicolon(),this.finishNode(n,"PropertyDefinition")}return n},f.parseClassStaticBlock=function(t){var e=this.curIndent,i=this.curLineStart;for(t.body=[],this.pushCx();!this.closes(s.tokTypes.braceR,e,i,!0);)t.body.push(this.parseStatement());return this.popCx(),this.eat(s.tokTypes.braceR),this.finishNode(t,"StaticBlock")},f.isClassElementNameStart=function(){return this.toks.isClassElementNameStart()},f.parseClassElementName=function(t){this.toks.type===s.tokTypes.privateId?(t.computed=!1,t.key=this.parsePrivateIdent()):this.parsePropertyName(t)},f.parseFunction=function(t,e,i){var r=this.inAsync,o=this.inGenerator,n=this.inFunction;return this.initFunction(t),this.options.ecmaVersion>=6&&(t.generator=this.eat(s.tokTypes.star)),this.options.ecmaVersion>=8&&(t.async=!!i),this.tok.type===s.tokTypes.name?t.id=this.parseIdent():e===!0&&(t.id=this.dummyIdent()),this.inAsync=t.async,this.inGenerator=t.generator,this.inFunction=!0,t.params=this.parseFunctionParams(),t.body=this.parseBlock(),this.toks.adaptDirectivePrologue(t.body.body),this.inAsync=r,this.inGenerator=o,this.inFunction=n,this.finishNode(t,e?"FunctionDeclaration":"FunctionExpression")},f.parseExport=function(){var t=this.startNode();if(this.next(),this.eat(s.tokTypes.star))return this.options.ecmaVersion>=11&&(this.eatContextual("as")?t.exported=this.parseExprAtom():t.exported=null),t.source=this.eatContextual("from")?this.parseExprAtom():this.dummyString(),this.semicolon(),this.finishNode(t,"ExportAllDeclaration");if(this.eat(s.tokTypes._default)){var e;if(this.tok.type===s.tokTypes._function||(e=this.toks.isAsyncFunction())){var i=this.startNode();this.next(),e&&this.next(),t.declaration=this.parseFunction(i,"nullableID",e)}else this.tok.type===s.tokTypes._class?t.declaration=this.parseClass("nullableID"):(t.declaration=this.parseMaybeAssign(),this.semicolon());return this.finishNode(t,"ExportDefaultDeclaration")}return this.tok.type.keyword||this.toks.isLet()||this.toks.isAsyncFunction()?(t.declaration=this.parseStatement(),t.specifiers=[],t.source=null):(t.declaration=null,t.specifiers=this.parseExportSpecifierList(),t.source=this.eatContextual("from")?this.parseExprAtom():null,this.semicolon()),this.finishNode(t,"ExportNamedDeclaration")},f.parseImport=function(){var t=this.startNode();if(this.next(),this.tok.type===s.tokTypes.string)t.specifiers=[],t.source=this.parseExprAtom();else{var e;this.tok.type===s.tokTypes.name&&this.tok.value!=="from"&&(e=this.startNode(),e.local=this.parseIdent(),this.finishNode(e,"ImportDefaultSpecifier"),this.eat(s.tokTypes.comma)),t.specifiers=this.parseImportSpecifiers(),t.source=this.eatContextual("from")&&this.tok.type===s.tokTypes.string?this.parseExprAtom():this.dummyString(),e&&t.specifiers.unshift(e)}return this.semicolon(),this.finishNode(t,"ImportDeclaration")},f.parseImportSpecifiers=function(){var t=[];if(this.tok.type===s.tokTypes.star){var e=this.startNode();this.next(),e.local=this.eatContextual("as")?this.parseIdent():this.dummyIdent(),t.push(this.finishNode(e,"ImportNamespaceSpecifier"))}else{var i=this.curIndent,r=this.curLineStart,o=this.nextLineStart;for(this.pushCx(),this.eat(s.tokTypes.braceL),this.curLineStart>o&&(o=this.curLineStart);!this.closes(s.tokTypes.braceR,i+(this.curLineStart<=o?1:0),r);){var n=this.startNode();if(this.eat(s.tokTypes.star))n.local=this.eatContextual("as")?this.parseModuleExportName():this.dummyIdent(),this.finishNode(n,"ImportNamespaceSpecifier");else{if(this.isContextual("from")||(n.imported=this.parseModuleExportName(),m(n.imported)))break;n.local=this.eatContextual("as")?this.parseModuleExportName():n.imported,this.finishNode(n,"ImportSpecifier")}t.push(n),this.eat(s.tokTypes.comma)}this.eat(s.tokTypes.braceR),this.popCx()}return t},f.parseExportSpecifierList=function(){var t=[],e=this.curIndent,i=this.curLineStart,r=this.nextLineStart;for(this.pushCx(),this.eat(s.tokTypes.braceL),this.curLineStart>r&&(r=this.curLineStart);!this.closes(s.tokTypes.braceR,e+(this.curLineStart<=r?1:0),i)&&!this.isContextual("from");){var o=this.startNode();if(o.local=this.parseModuleExportName(),m(o.local))break;o.exported=this.eatContextual("as")?this.parseModuleExportName():o.local,this.finishNode(o,"ExportSpecifier"),t.push(o),this.eat(s.tokTypes.comma)}return this.eat(s.tokTypes.braceR),this.popCx(),t},f.parseModuleExportName=function(){return this.options.ecmaVersion>=13&&this.tok.type===s.tokTypes.string?this.parseExprAtom():this.parseIdent()};var a=u.prototype;a.checkLVal=function(t){if(!t)return t;switch(t.type){case"Identifier":case"MemberExpression":return t;case"ParenthesizedExpression":return t.expression=this.checkLVal(t.expression),t;default:return this.dummyIdent()}},a.parseExpression=function(t){var e=this.storeCurrentPos(),i=this.parseMaybeAssign(t);if(this.tok.type===s.tokTypes.comma){var r=this.startNodeAt(e);for(r.expressions=[i];this.eat(s.tokTypes.comma);)r.expressions.push(this.parseMaybeAssign(t));return this.finishNode(r,"SequenceExpression")}return i},a.parseParenExpression=function(){this.pushCx(),this.expect(s.tokTypes.parenL);var t=this.parseExpression();return this.popCx(),this.expect(s.tokTypes.parenR),t},a.parseMaybeAssign=function(t){if(this.inGenerator&&this.toks.isContextual("yield")){var e=this.startNode();return this.next(),this.semicolon()||this.canInsertSemicolon()||this.tok.type!==s.tokTypes.star&&!this.tok.type.startsExpr?(e.delegate=!1,e.argument=null):(e.delegate=this.eat(s.tokTypes.star),e.argument=this.parseMaybeAssign()),this.finishNode(e,"YieldExpression")}var i=this.storeCurrentPos(),r=this.parseMaybeConditional(t);if(this.tok.type.isAssign){var o=this.startNodeAt(i);return o.operator=this.tok.value,o.left=this.tok.type===s.tokTypes.eq?this.toAssignable(r):this.checkLVal(r),this.next(),o.right=this.parseMaybeAssign(t),this.finishNode(o,"AssignmentExpression")}return r},a.parseMaybeConditional=function(t){var e=this.storeCurrentPos(),i=this.parseExprOps(t);if(this.eat(s.tokTypes.question)){var r=this.startNodeAt(e);return r.test=i,r.consequent=this.parseMaybeAssign(),r.alternate=this.expect(s.tokTypes.colon)?this.parseMaybeAssign(t):this.dummyIdent(),this.finishNode(r,"ConditionalExpression")}return i},a.parseExprOps=function(t){var e=this.storeCurrentPos(),i=this.curIndent,r=this.curLineStart;return this.parseExprOp(this.parseMaybeUnary(!1),e,-1,t,i,r)},a.parseExprOp=function(t,e,i,r,o,n){if(this.curLineStart!==n&&this.curIndent<o&&this.tokenStartsLine())return t;var p=this.tok.type.binop;if(p!=null&&(!r||this.tok.type!==s.tokTypes._in)&&p>i){var h=this.startNodeAt(e);if(h.left=t,h.operator=this.tok.value,this.next(),this.curLineStart!==n&&this.curIndent<o&&this.tokenStartsLine())h.right=this.dummyIdent();else{var y=this.storeCurrentPos();h.right=this.parseExprOp(this.parseMaybeUnary(!1),y,p,r,o,n)}return this.finishNode(h,/&&|\|\||\?\?/.test(h.operator)?"LogicalExpression":"BinaryExpression"),this.parseExprOp(h,e,i,r,o,n)}return t},a.parseMaybeUnary=function(t){var e=this.storeCurrentPos(),i;if(this.options.ecmaVersion>=8&&this.toks.isContextual("await")&&(this.inAsync||this.toks.inModule&&this.options.ecmaVersion>=13||!this.inFunction&&this.options.allowAwaitOutsideFunction))i=this.parseAwait(),t=!0;else if(this.tok.type.prefix){var r=this.startNode(),o=this.tok.type===s.tokTypes.incDec;o||(t=!0),r.operator=this.tok.value,r.prefix=!0,this.next(),r.argument=this.parseMaybeUnary(!0),o&&(r.argument=this.checkLVal(r.argument)),i=this.finishNode(r,o?"UpdateExpression":"UnaryExpression")}else if(this.tok.type===s.tokTypes.ellipsis){var n=this.startNode();this.next(),n.argument=this.parseMaybeUnary(t),i=this.finishNode(n,"SpreadElement")}else if(!t&&this.tok.type===s.tokTypes.privateId)i=this.parsePrivateIdent();else for(i=this.parseExprSubscripts();this.tok.type.postfix&&!this.canInsertSemicolon();){var p=this.startNodeAt(e);p.operator=this.tok.value,p.prefix=!1,p.argument=this.checkLVal(i),this.next(),i=this.finishNode(p,"UpdateExpression")}if(!t&&this.eat(s.tokTypes.starstar)){var h=this.startNodeAt(e);return h.operator="**",h.left=i,h.right=this.parseMaybeUnary(!1),this.finishNode(h,"BinaryExpression")}return i},a.parseExprSubscripts=function(){var t=this.storeCurrentPos();return this.parseSubscripts(this.parseExprAtom(),t,!1,this.curIndent,this.curLineStart)},a.parseSubscripts=function(t,e,i,r,o){for(var n=this.options.ecmaVersion>=11,p=!1;;){if(this.curLineStart!==o&&this.curIndent<=r&&this.tokenStartsLine())if(this.tok.type===s.tokTypes.dot&&this.curIndent===r)--r;else break;var h=t.type==="Identifier"&&t.name==="async"&&!this.canInsertSemicolon(),y=n&&this.eat(s.tokTypes.questionDot);if(y&&(p=!0),y&&this.tok.type!==s.tokTypes.parenL&&this.tok.type!==s.tokTypes.bracketL&&this.tok.type!==s.tokTypes.backQuote||this.eat(s.tokTypes.dot)){var k=this.startNodeAt(e);k.object=t,this.curLineStart!==o&&this.curIndent<=r&&this.tokenStartsLine()?k.property=this.dummyIdent():k.property=this.parsePropertyAccessor()||this.dummyIdent(),k.computed=!1,n&&(k.optional=y),t=this.finishNode(k,"MemberExpression")}else if(this.tok.type===s.tokTypes.bracketL){this.pushCx(),this.next();var l=this.startNodeAt(e);l.object=t,l.property=this.parseExpression(),l.computed=!0,n&&(l.optional=y),this.popCx(),this.expect(s.tokTypes.bracketR),t=this.finishNode(l,"MemberExpression")}else if(!i&&this.tok.type===s.tokTypes.parenL){var v=this.parseExprList(s.tokTypes.parenR);if(h&&this.eat(s.tokTypes.arrow))return this.parseArrowExpression(this.startNodeAt(e),v,!0);var d=this.startNodeAt(e);d.callee=t,d.arguments=v,n&&(d.optional=y),t=this.finishNode(d,"CallExpression")}else if(this.tok.type===s.tokTypes.backQuote){var T=this.startNodeAt(e);T.tag=t,T.quasi=this.parseTemplate(),t=this.finishNode(T,"TaggedTemplateExpression")}else break}if(p){var x=this.startNodeAt(e);x.expression=t,t=this.finishNode(x,"ChainExpression")}return t},a.parseExprAtom=function(){var t;switch(this.tok.type){case s.tokTypes._this:case s.tokTypes._super:var e=this.tok.type===s.tokTypes._this?"ThisExpression":"Super";return t=this.startNode(),this.next(),this.finishNode(t,e);case s.tokTypes.name:var i=this.storeCurrentPos(),r=this.parseIdent(),o=!1;if(r.name==="async"&&!this.canInsertSemicolon()){if(this.eat(s.tokTypes._function))return this.toks.overrideContext(s.tokContexts.f_expr),this.parseFunction(this.startNodeAt(i),!1,!0);this.tok.type===s.tokTypes.name&&(r=this.parseIdent(),o=!0)}return this.eat(s.tokTypes.arrow)?this.parseArrowExpression(this.startNodeAt(i),[r],o):r;case s.tokTypes.regexp:t=this.startNode();var n=this.tok.value;return t.regex={pattern:n.pattern,flags:n.flags},t.value=n.value,t.raw=this.input.slice(this.tok.start,this.tok.end),this.next(),this.finishNode(t,"Literal");case s.tokTypes.num:case s.tokTypes.string:return t=this.startNode(),t.value=this.tok.value,t.raw=this.input.slice(this.tok.start,this.tok.end),this.tok.type===s.tokTypes.num&&t.raw.charCodeAt(t.raw.length-1)===110&&(t.bigint=t.raw.slice(0,-1).replace(/_/g,"")),this.next(),this.finishNode(t,"Literal");case s.tokTypes._null:case s.tokTypes._true:case s.tokTypes._false:return t=this.startNode(),t.value=this.tok.type===s.tokTypes._null?null:this.tok.type===s.tokTypes._true,t.raw=this.tok.type.keyword,this.next(),this.finishNode(t,"Literal");case s.tokTypes.parenL:var p=this.storeCurrentPos();this.next();var h=this.parseExpression();if(this.expect(s.tokTypes.parenR),this.eat(s.tokTypes.arrow)){var y=h.expressions||[h];return y.length&&m(y[y.length-1])&&y.pop(),this.parseArrowExpression(this.startNodeAt(p),y)}if(this.options.preserveParens){var k=this.startNodeAt(p);k.expression=h,h=this.finishNode(k,"ParenthesizedExpression")}return h;case s.tokTypes.bracketL:return t=this.startNode(),t.elements=this.parseExprList(s.tokTypes.bracketR,!0),this.finishNode(t,"ArrayExpression");case s.tokTypes.braceL:return this.toks.overrideContext(s.tokContexts.b_expr),this.parseObj();case s.tokTypes._class:return this.parseClass(!1);case s.tokTypes._function:return t=this.startNode(),this.next(),this.parseFunction(t,!1);case s.tokTypes._new:return this.parseNew();case s.tokTypes.backQuote:return this.parseTemplate();case s.tokTypes._import:return this.options.ecmaVersion>=11?this.parseExprImport():this.dummyIdent();default:return this.dummyIdent()}},a.parseExprImport=function(){var t=this.startNode(),e=this.parseIdent(!0);switch(this.tok.type){case s.tokTypes.parenL:return this.parseDynamicImport(t);case s.tokTypes.dot:return t.meta=e,this.parseImportMeta(t);default:return t.name="import",this.finishNode(t,"Identifier")}},a.parseDynamicImport=function(t){return t.source=this.parseExprList(s.tokTypes.parenR)[0]||this.dummyString(),this.finishNode(t,"ImportExpression")},a.parseImportMeta=function(t){return this.next(),t.property=this.parseIdent(!0),this.finishNode(t,"MetaProperty")},a.parseNew=function(){var t=this.startNode(),e=this.curIndent,i=this.curLineStart,r=this.parseIdent(!0);if(this.options.ecmaVersion>=6&&this.eat(s.tokTypes.dot))return t.meta=r,t.property=this.parseIdent(!0),this.finishNode(t,"MetaProperty");var o=this.storeCurrentPos();return t.callee=this.parseSubscripts(this.parseExprAtom(),o,!0,e,i),this.tok.type===s.tokTypes.parenL?t.arguments=this.parseExprList(s.tokTypes.parenR):t.arguments=[],this.finishNode(t,"NewExpression")},a.parseTemplateElement=function(){var t=this.startNode();return this.tok.type===s.tokTypes.invalidTemplate?t.value={raw:this.tok.value,cooked:null}:t.value={raw:this.input.slice(this.tok.start,this.tok.end).replace(/\r\n?/g,`
`),cooked:this.tok.value},this.next(),t.tail=this.tok.type===s.tokTypes.backQuote,this.finishNode(t,"TemplateElement")},a.parseTemplate=function(){var t=this.startNode();this.next(),t.expressions=[];var e=this.parseTemplateElement();for(t.quasis=[e];!e.tail;)this.next(),t.expressions.push(this.parseExpression()),this.expect(s.tokTypes.braceR)?e=this.parseTemplateElement():(e=this.startNode(),e.value={cooked:"",raw:""},e.tail=!0,this.finishNode(e,"TemplateElement")),t.quasis.push(e);return this.expect(s.tokTypes.backQuote),this.finishNode(t,"TemplateLiteral")},a.parseObj=function(){var t=this.startNode();t.properties=[],this.pushCx();var e=this.curIndent+1,i=this.curLineStart;for(this.eat(s.tokTypes.braceL),this.curIndent+1<e&&(e=this.curIndent,i=this.curLineStart);!this.closes(s.tokTypes.braceR,e,i);){var r=this.startNode(),o=void 0,n=void 0,p=void 0;if(this.options.ecmaVersion>=9&&this.eat(s.tokTypes.ellipsis)){r.argument=this.parseMaybeAssign(),t.properties.push(this.finishNode(r,"SpreadElement")),this.eat(s.tokTypes.comma);continue}if(this.options.ecmaVersion>=6&&(p=this.storeCurrentPos(),r.method=!1,r.shorthand=!1,o=this.eat(s.tokTypes.star)),this.parsePropertyName(r),this.toks.isAsyncProp(r)?(n=!0,o=this.options.ecmaVersion>=9&&this.eat(s.tokTypes.star),this.parsePropertyName(r)):n=!1,m(r.key)){m(this.parseMaybeAssign())&&this.next(),this.eat(s.tokTypes.comma);continue}if(this.eat(s.tokTypes.colon))r.kind="init",r.value=this.parseMaybeAssign();else if(this.options.ecmaVersion>=6&&(this.tok.type===s.tokTypes.parenL||this.tok.type===s.tokTypes.braceL))r.kind="init",r.method=!0,r.value=this.parseMethod(o,n);else if(this.options.ecmaVersion>=5&&r.key.type==="Identifier"&&!r.computed&&(r.key.name==="get"||r.key.name==="set")&&this.tok.type!==s.tokTypes.comma&&this.tok.type!==s.tokTypes.braceR&&this.tok.type!==s.tokTypes.eq)r.kind=r.key.name,this.parsePropertyName(r),r.value=this.parseMethod(!1);else{if(r.kind="init",this.options.ecmaVersion>=6)if(this.eat(s.tokTypes.eq)){var h=this.startNodeAt(p);h.operator="=",h.left=r.key,h.right=this.parseMaybeAssign(),r.value=this.finishNode(h,"AssignmentExpression")}else r.value=r.key;else r.value=this.dummyIdent();r.shorthand=!0}t.properties.push(this.finishNode(r,"Property")),this.eat(s.tokTypes.comma)}return this.popCx(),this.eat(s.tokTypes.braceR)||(this.last.end=this.tok.start,this.options.locations&&(this.last.loc.end=this.tok.loc.start)),this.finishNode(t,"ObjectExpression")},a.parsePropertyName=function(t){if(this.options.ecmaVersion>=6)if(this.eat(s.tokTypes.bracketL)){t.computed=!0,t.key=this.parseExpression(),this.expect(s.tokTypes.bracketR);return}else t.computed=!1;var e=this.tok.type===s.tokTypes.num||this.tok.type===s.tokTypes.string?this.parseExprAtom():this.parseIdent();t.key=e||this.dummyIdent()},a.parsePropertyAccessor=function(){if(this.tok.type===s.tokTypes.name||this.tok.type.keyword)return this.parseIdent();if(this.tok.type===s.tokTypes.privateId)return this.parsePrivateIdent()},a.parseIdent=function(){var t=this.tok.type===s.tokTypes.name?this.tok.value:this.tok.type.keyword;if(!t)return this.dummyIdent();this.tok.type.keyword&&(this.toks.type=s.tokTypes.name);var e=this.startNode();return this.next(),e.name=t,this.finishNode(e,"Identifier")},a.parsePrivateIdent=function(){var t=this.startNode();return t.name=this.tok.value,this.next(),this.finishNode(t,"PrivateIdentifier")},a.initFunction=function(t){t.id=null,t.params=[],this.options.ecmaVersion>=6&&(t.generator=!1,t.expression=!1),this.options.ecmaVersion>=8&&(t.async=!1)},a.toAssignable=function(t,e){if(!(!t||t.type==="Identifier"||t.type==="MemberExpression"&&!e))if(t.type==="ParenthesizedExpression")this.toAssignable(t.expression,e);else{if(this.options.ecmaVersion<6)return this.dummyIdent();if(t.type==="ObjectExpression"){t.type="ObjectPattern";for(var i=0,r=t.properties;i<r.length;i+=1){var o=r[i];this.toAssignable(o,e)}}else if(t.type==="ArrayExpression")t.type="ArrayPattern",this.toAssignableList(t.elements,e);else if(t.type==="Property")this.toAssignable(t.value,e);else if(t.type==="SpreadElement")t.type="RestElement",this.toAssignable(t.argument,e);else if(t.type==="AssignmentExpression")t.type="AssignmentPattern",delete t.operator;else return this.dummyIdent()}return t},a.toAssignableList=function(t,e){for(var i=0,r=t;i<r.length;i+=1){var o=r[i];this.toAssignable(o,e)}return t},a.parseFunctionParams=function(t){return t=this.parseExprList(s.tokTypes.parenR),this.toAssignableList(t,!0)},a.parseMethod=function(t,e){var i=this.startNode(),r=this.inAsync,o=this.inGenerator,n=this.inFunction;return this.initFunction(i),this.options.ecmaVersion>=6&&(i.generator=!!t),this.options.ecmaVersion>=8&&(i.async=!!e),this.inAsync=i.async,this.inGenerator=i.generator,this.inFunction=!0,i.params=this.parseFunctionParams(),i.body=this.parseBlock(),this.toks.adaptDirectivePrologue(i.body.body),this.inAsync=r,this.inGenerator=o,this.inFunction=n,this.finishNode(i,"FunctionExpression")},a.parseArrowExpression=function(t,e,i){var r=this.inAsync,o=this.inGenerator,n=this.inFunction;return this.initFunction(t),this.options.ecmaVersion>=8&&(t.async=!!i),this.inAsync=t.async,this.inGenerator=!1,this.inFunction=!0,t.params=this.toAssignableList(e,!0),t.expression=this.tok.type!==s.tokTypes.braceL,t.expression?t.body=this.parseMaybeAssign():(t.body=this.parseBlock(),this.toks.adaptDirectivePrologue(t.body.body)),this.inAsync=r,this.inGenerator=o,this.inFunction=n,this.finishNode(t,"ArrowFunctionExpression")},a.parseExprList=function(t,e){this.pushCx();var i=this.curIndent,r=this.curLineStart,o=[];for(this.next();!this.closes(t,i+1,r);){if(this.eat(s.tokTypes.comma)){o.push(e?null:this.dummyIdent());continue}var n=this.parseMaybeAssign();if(m(n)){if(this.closes(t,i,r))break;this.next()}else o.push(n);this.eat(s.tokTypes.comma)}return this.popCx(),this.eat(t)||(this.last.end=this.tok.start,this.options.locations&&(this.last.loc.end=this.tok.loc.start)),o},a.parseAwait=function(){var t=this.startNode();return this.next(),t.argument=this.parseMaybeUnary(),this.finishNode(t,"AwaitExpression")},s.defaultOptions.tabSize=4;function I(t,e){return u.parse(t,e)}c.LooseParser=u,c.isDummy=m,c.parse=I});
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