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this.next(),this.labels.push(Y),e.body=this.parseStatement(!1),this.labels.pop(),this.expect(F._while),e.test=this.parseParenExpression(),this.options.ecmaVersion>=6?this.eat(F.semi):this.semicolon(),this.finishNode(e,"DoWhileStatement")},z.parseForStatement=function(e){if(this.next(),this.labels.push(Y),this.expect(F.parenL),this.type===F.semi)return this.parseFor(e,null);var t=this.isLet();if(this.type===F._var||this.type===F._const||t){var n=this.startNode(),r=t?"let":this.value;return this.next(),this.parseVar(n,!0,r),this.finishNode(n,"VariableDeclaration"),!(this.type===F._in||this.options.ecmaVersion>=6&&this.isContextual("of"))||1!==n.declarations.length||"var"!==r&&n.declarations[0].init?this.parseFor(e,n):this.parseForIn(e,n)}var i=new W,s=this.parseExpression(!0,i);return this.type===F._in||this.options.ecmaVersion>=6&&this.isContextual("of")?(this.checkPatternErrors(i,!0),this.toAssignable(s),this.checkLVal(s),this.parseForIn(e,s)):(this.checkExpressionErrors(i,!0),this.parseFor(e,s))},z.parseFunctionStatement=function(e,t){return this.next(),this.parseFunction(e,!0,!1,t)},z.isFunction=function(){return this.type===F._function||this.isAsyncFunction()},z.parseIfStatement=function(e){return this.next(),e.test=this.parseParenExpression(),e.consequent=this.parseStatement(!this.strict&&this.isFunction()),e.alternate=this.eat(F._else)?this.parseStatement(!this.strict&&this.isFunction()):null,this.finishNode(e,"IfStatement")},z.parseReturnStatement=function(e){return this.inFunction||this.options.allowReturnOutsideFunction||this.raise(this.start,"'return' outside of 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this.strict&&this.raise(this.start,"'with' in strict mode"),this.next(),e.object=this.parseParenExpression(),e.body=this.parseStatement(!1),this.finishNode(e,"WithStatement")},z.parseEmptyStatement=function(e){return this.next(),this.finishNode(e,"EmptyStatement")},z.parseLabeledStatement=function(e,t,n){for(var r=this,i=0;i<this.labels.length;++i)r.labels[i].name===t&&r.raise(n.start,"Label '"+t+"' is already declared");for(var s=this.type.isLoop?"loop":this.type===F._switch?"switch":null,o=this.labels.length-1;o>=0;o--){var a=r.labels[o];if(a.statementStart!=e.start)break;a.statementStart=r.start,a.kind=s}return this.labels.push({name:t,kind:s,statementStart:this.start}),e.body=this.parseStatement(!0),this.labels.pop(),e.label=n,this.finishNode(e,"LabeledStatement")},z.parseExpressionStatement=function(e,t){return e.expression=t,this.semicolon(),this.finishNode(e,"ExpressionStatement")},z.parseBlock=function(e){var t,n=this,r=this.startNode(),i=!0;for(r.body=[],this.expect(F.braceL);!this.eat(F.braceR);){var s=n.parseStatement(!0);r.body.push(s),i&&e&&n.isUseStrict(s)&&(t=n.strict,n.setStrict(n.strict=!0)),i=!1}return t===!1&&this.setStrict(!1),this.finishNode(r,"BlockStatement")},z.parseFor=function(e,t){return e.init=t,this.expect(F.semi),e.test=this.type===F.semi?null:this.parseExpression(),this.expect(F.semi),e.update=this.type===F.parenR?null:this.parseExpression(),this.expect(F.parenR),e.body=this.parseStatement(!1),this.labels.pop(),this.finishNode(e,"ForStatement")},z.parseForIn=function(e,t){var n=this.type===F._in?"ForInStatement":"ForOfStatement";return this.next(),e.left=t,e.right=this.parseExpression(),this.expect(F.parenR),e.body=this.parseStatement(!1),this.labels.pop(),this.finishNode(e,n)},z.parseVar=function(e,t,n){var r=this;for(e.declarations=[],e.kind=n;;){var i=r.startNode();if(r.parseVarId(i),r.eat(F.eq)?i.init=r.parseMaybeAssign(t):"const"!==n||r.type===F._in||r.options.ecmaVersion>=6&&r.isContextual("of")?"Identifier"==i.id.type||t&&(r.type===F._in||r.isContextual("of"))?i.init=null:r.raise(r.lastTokEnd,"Complex binding patterns require an initialization value"):r.unexpected(),e.declarations.push(r.finishNode(i,"VariableDeclarator")),!r.eat(F.comma))break}return e},z.parseVarId=function(e){e.id=this.parseBindingAtom(),this.checkLVal(e.id,!0)},z.parseFunction=function(e,t,n,r){this.initFunction(e),this.options.ecmaVersion>=6&&!r&&(e.generator=this.eat(F.star)),this.options.ecmaVersion>=8&&(e.async=!!r),t&&(e.id=this.parseIdent());var i=this.inGenerator,s=this.inAsync,o=this.yieldPos,a=this.awaitPos;return this.inGenerator=e.generator,this.inAsync=e.async,this.yieldPos=0,this.awaitPos=0,t||this.type!==F.name||(e.id=this.parseIdent()),this.parseFunctionParams(e),this.parseFunctionBody(e,n),this.inGenerator=i,this.inAsync=s,this.yieldPos=o,this.awaitPos=a,this.finishNode(e,t?"FunctionDeclaration":"FunctionExpression")},z.parseFunctionParams=function(e){this.expect(F.parenL),e.params=this.parseBindingList(F.parenR,!1,this.options.ecmaVersion>=8,!0),this.checkYieldAwaitInDefaultParams()},z.parseClass=function(e,t){var n=this;this.next(),this.parseClassId(e,t),this.parseClassSuper(e);var r=this.startNode(),i=!1;for(r.body=[],this.expect(F.braceL);!this.eat(F.braceR);)if(!n.eat(F.semi)){var s=n.startNode(),o=n.eat(F.star),a=!1,u=n.type===F.name&&"static"===n.value;n.parsePropertyName(s),s.static=u&&n.type!==F.parenL,s.static&&(o&&n.unexpected(),o=n.eat(F.star),n.parsePropertyName(s)),n.options.ecmaVersion>=8&&!o&&!s.computed&&"Identifier"===s.key.type&&"async"===s.key.name&&n.type!==F.parenL&&!n.canInsertSemicolon()&&(a=!0,n.parsePropertyName(s)),s.kind="method";var c=!1;if(!s.computed){var l=s.key;o||a||"Identifier"!==l.type||n.type===F.parenL||"get"!==l.name&&"set"!==l.name||(c=!0,s.kind=l.name,l=n.parsePropertyName(s)),!s.static&&("Identifier"===l.type&&"constructor"===l.name||"Literal"===l.type&&"constructor"===l.value)&&(i&&n.raise(l.start,"Duplicate constructor in the same class"),c&&n.raise(l.start,"Constructor can't have get/set modifier"),o&&n.raise(l.start,"Constructor can't be a generator"),a&&n.raise(l.start,"Constructor can't be an async method"),s.kind="constructor",i=!0)}if(n.parseClassMethod(r,s,o,a),c){var p="get"===s.kind?0:1;if(s.value.params.length!==p){var h=s.value.start;"get"===s.kind?n.raiseRecoverable(h,"getter should have no params"):n.raiseRecoverable(h,"setter should have exactly one param")}else"set"===s.kind&&"RestElement"===s.value.params[0].type&&n.raiseRecoverable(s.value.params[0].start,"Setter cannot use rest params")}}return e.body=this.finishNode(r,"ClassBody"),this.finishNode(e,t?"ClassDeclaration":"ClassExpression")},z.parseClassMethod=function(e,t,n,r){t.value=this.parseMethod(n,r),e.body.push(this.finishNode(t,"MethodDefinition"))},z.parseClassId=function(e,t){e.id=this.type===F.name?this.parseIdent():t?this.unexpected():null},z.parseClassSuper=function(e){e.superClass=this.eat(F._extends)?this.parseExprSubscripts():null},z.parseExport=function(e,t){var n=this;if(this.next(),this.eat(F.star))return this.expectContextual("from"),e.source=this.type===F.string?this.parseExprAtom():this.unexpected(),this.semicolon(),this.finishNode(e,"ExportAllDeclaration");if(this.eat(F._default)){this.checkExport(t,"default",this.lastTokStart);var r=this.type==F.parenL,i=this.parseMaybeAssign(),s=!0;return r||"FunctionExpression"!=i.type&&"ClassExpression"!=i.type||(s=!1,i.id&&(i.type="FunctionExpression"==i.type?"FunctionDeclaration":"ClassDeclaration")),e.declaration=i,s&&this.semicolon(),this.finishNode(e,"ExportDefaultDeclaration")}if(this.shouldParseExportStatement())e.declaration=this.parseStatement(!0),"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"))e.source=this.type===F.string?this.parseExprAtom():this.unexpected();else{for(var o=0;o<e.specifiers.length;o++)(n.keywords.test(e.specifiers[o].local.name)||n.reservedWords.test(e.specifiers[o].local.name))&&n.unexpected(e.specifiers[o].local.start);e.source=null}this.semicolon()}return this.finishNode(e,"ExportNamedDeclaration")},z.checkExport=function(e,t,n){e&&(Object.prototype.hasOwnProperty.call(e,t)&&this.raiseRecoverable(n,"Duplicate export '"+t+"'"),e[t]=!0)},z.checkPatternExport=function(e,t){var n=this,r=t.type;if("Identifier"==r)this.checkExport(e,t.name,t.start);else if("ObjectPattern"==r)for(var i=0;i<t.properties.length;++i)n.checkPatternExport(e,t.properties[i].value);else if("ArrayPattern"==r)for(var s=0;s<t.elements.length;++s){var o=t.elements[s];o&&n.checkPatternExport(e,o)}else"AssignmentPattern"==r?this.checkPatternExport(e,t.left):"ParenthesizedExpression"==r&&this.checkPatternExport(e,t.expression)},z.checkVariableExport=function(e,t){var n=this;if(e)for(var r=0;r<t.length;r++)n.checkPatternExport(e,t[r].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=this,n=[],r=!0;for(this.expect(F.braceL);!this.eat(F.braceR);){if(r)r=!1;else if(t.expect(F.comma),t.afterTrailingComma(F.braceR))break;var i=t.startNode();i.local=t.parseIdent(t.type===F._default),i.exported=t.eatContextual("as")?t.parseIdent(!0):i.local,t.checkExport(e,i.exported.name,i.exported.start),n.push(t.finishNode(i,"ExportSpecifier"))}return n},z.parseImport=function(e){return this.next(),this.type===F.string?(e.specifiers=J,e.source=this.parseExprAtom()):(e.specifiers=this.parseImportSpecifiers(),this.expectContextual("from"),e.source=this.type===F.string?this.parseExprAtom():this.unexpected()),this.semicolon(),this.finishNode(e,"ImportDeclaration")},z.parseImportSpecifiers=function(){var e=this,t=[],n=!0;if(this.type===F.name){var r=this.startNode();if(r.local=this.parseIdent(),this.checkLVal(r.local,!0),t.push(this.finishNode(r,"ImportDefaultSpecifier")),!this.eat(F.comma))return t}if(this.type===F.star){var i=this.startNode();return this.next(),this.expectContextual("as"),i.local=this.parseIdent(),this.checkLVal(i.local,!0),t.push(this.finishNode(i,"ImportNamespaceSpecifier")),t}for(this.expect(F.braceL);!this.eat(F.braceR);){if(n)n=!1;else if(e.expect(F.comma),e.afterTrailingComma(F.braceR))break;var s=e.startNode();s.imported=e.parseIdent(!0),e.eatContextual("as")?s.local=e.parseIdent():(s.local=s.imported,e.isKeyword(s.local.name)&&e.unexpected(s.local.start),e.reservedWordsStrict.test(s.local.name)&&e.raiseRecoverable(s.local.start,"The keyword '"+s.local.name+"' is reserved")),e.checkLVal(s.local,!0),t.push(e.finishNode(s,"ImportSpecifier"))}return t};var H=U.prototype;H.toAssignable=function(e,t){var n=this;if(this.options.ecmaVersion>=6&&e)switch(e.type){case"Identifier":this.inAsync&&"await"===e.name&&this.raise(e.start,"Can not use 'await' as identifier inside an async function");break;case"ObjectPattern":case"ArrayPattern":break;case"ObjectExpression":e.type="ObjectPattern";for(var r=0;r<e.properties.length;r++){var i=e.properties[r];"init"!==i.kind&&n.raise(i.key.start,"Object pattern can't contain getter or setter"),n.toAssignable(i.value,t)}break;case"ArrayExpression":e.type="ArrayPattern",this.toAssignableList(e.elements,t);break;case"AssignmentExpression":if("="!==e.operator){this.raise(e.left.end,"Only '=' operator can be used for specifying default value.");break}e.type="AssignmentPattern",delete e.operator,this.toAssignable(e.left,t);case"AssignmentPattern":break;case"ParenthesizedExpression":e.expression=this.toAssignable(e.expression,t);break;case"MemberExpression":if(!t)break;default:this.raise(e.start,"Assigning to rvalue")}return e},H.toAssignableList=function(e,t){var n=this,r=e.length;if(r){var i=e[r-1];if(i&&"RestElement"==i.type)--r;else if(i&&"SpreadElement"==i.type){i.type="RestElement";var s=i.argument;this.toAssignable(s,t),"Identifier"!==s.type&&"MemberExpression"!==s.type&&"ArrayPattern"!==s.type&&this.unexpected(s.start),--r}t&&i&&"RestElement"===i.type&&"Identifier"!==i.argument.type&&this.unexpected(i.argument.start)}for(var o=0;o<r;o++){var a=e[o];a&&n.toAssignable(a,t)}return e},H.parseSpread=function(e){var t=this.startNode();return this.next(),t.argument=this.parseMaybeAssign(!1,e),this.finishNode(t,"SpreadElement")},H.parseRest=function(e){var t=this.startNode();return this.next(),t.argument=e?this.type===F.name?this.parseIdent():this.unexpected():this.type===F.name||this.type===F.bracketL?this.parseBindingAtom():this.unexpected(),this.finishNode(t,"RestElement")},H.parseBindingAtom=function(){if(this.options.ecmaVersion<6)return this.parseIdent();switch(this.type){case F.name:return this.parseIdent();case F.bracketL:var e=this.startNode();return this.next(),e.elements=this.parseBindingList(F.bracketR,!0,!0),this.finishNode(e,"ArrayPattern");case F.braceL:return this.parseObj(!0);default:this.unexpected()}},H.parseBindingList=function(e,t,n,r){for(var i=this,s=[],o=!0;!this.eat(e);)if(o?o=!1:i.expect(F.comma),t&&i.type===F.comma)s.push(null);else{if(n&&i.afterTrailingComma(e))break;if(i.type===F.ellipsis){var a=i.parseRest(r);i.parseBindingListItem(a),s.push(a),i.type===F.comma&&i.raise(i.start,"Comma is not permitted after the rest element"),i.expect(e);break}var u=i.parseMaybeDefault(i.start,i.startLoc);i.parseBindingListItem(u),s.push(u)}return s},H.parseBindingListItem=function(e){return e},H.parseMaybeDefault=function(e,t,n){if(n=n||this.parseBindingAtom(),this.options.ecmaVersion<6||!this.eat(F.eq))return n;var r=this.startNodeAt(e,t);return r.left=n,r.right=this.parseMaybeAssign(),this.finishNode(r,"AssignmentPattern")},H.checkLVal=function(e,t,n){var r=this;switch(e.type){case"Identifier":this.strict&&this.reservedWordsStrictBind.test(e.name)&&this.raiseRecoverable(e.start,(t?"Binding ":"Assigning to ")+e.name+" in strict mode"),n&&(u(n,e.name)&&this.raiseRecoverable(e.start,"Argument name clash"),n[e.name]=!0);break;case"MemberExpression":t&&this.raiseRecoverable(e.start,(t?"Binding":"Assigning to")+" member expression");break;case"ObjectPattern":for(var i=0;i<e.properties.length;i++)r.checkLVal(e.properties[i].value,t,n);break;case"ArrayPattern":for(var s=0;s<e.elements.length;s++){var o=e.elements[s];o&&r.checkLVal(o,t,n)}break;case"AssignmentPattern":this.checkLVal(e.left,t,n);break;case"RestElement":this.checkLVal(e.argument,t,n);break;case"ParenthesizedExpression":this.checkLVal(e.expression,t,n);break;default:this.raise(e.start,(t?"Binding":"Assigning to")+" rvalue")}};var Q=U.prototype;Q.checkPropClash=function(e,t){if(!(this.options.ecmaVersion>=6&&(e.computed||e.method||e.shorthand))){var n,r=e.key;switch(r.type){case"Identifier":n=r.name;break;case"Literal":n=String(r.value);break;default:return}var i=e.kind;if(this.options.ecmaVersion>=6)return void("__proto__"===n&&"init"===i&&(t.proto&&this.raiseRecoverable(r.start,"Redefinition of __proto__ property"),t.proto=!0));n="$"+n;var s=t[n];if(s){var o="init"!==i;(!this.strict&&!o||!s[i])&&o^s.init||this.raiseRecoverable(r.start,"Redefinition of property")}else s=t[n]={init:!1,get:!1,set:!1};s[i]=!0}},Q.parseExpression=function(e,t){var n=this,r=this.start,i=this.startLoc,s=this.parseMaybeAssign(e,t);if(this.type===F.comma){var o=this.startNodeAt(r,i);for(o.expressions=[s];this.eat(F.comma);)o.expressions.push(n.parseMaybeAssign(e,t));return this.finishNode(o,"SequenceExpression")}return s},Q.parseMaybeAssign=function(e,t,n){if(this.inGenerator&&this.isContextual("yield"))return this.parseYield();var r=!1;t||(t=new W,r=!0);var i=this.start,s=this.startLoc;this.type!=F.parenL&&this.type!=F.name||(this.potentialArrowAt=this.start);var o=this.parseMaybeConditional(e,t);if(n&&(o=n.call(this,o,i,s)),this.type.isAssign){this.checkPatternErrors(t,!0),r||W.call(t);var a=this.startNodeAt(i,s);return a.operator=this.value,a.left=this.type===F.eq?this.toAssignable(o):o,t.shorthandAssign=0,this.checkLVal(o),this.next(),a.right=this.parseMaybeAssign(e),this.finishNode(a,"AssignmentExpression")}return r&&this.checkExpressionErrors(t,!0),o},Q.parseMaybeConditional=function(e,t){var n=this.start,r=this.startLoc,i=this.parseExprOps(e,t);if(this.checkExpressionErrors(t))return i;if(this.eat(F.question)){var s=this.startNodeAt(n,r);return s.test=i,s.consequent=this.parseMaybeAssign(),this.expect(F.colon),s.alternate=this.parseMaybeAssign(e),this.finishNode(s,"ConditionalExpression")}return i},Q.parseExprOps=function(e,t){var n=this.start,r=this.startLoc,i=this.parseMaybeUnary(t,!1);return this.checkExpressionErrors(t)?i:this.parseExprOp(i,n,r,-1,e)},Q.parseExprOp=function(e,t,n,r,i){var s=this.type.binop;if(null!=s&&(!i||this.type!==F._in)&&s>r){var o=this.type===F.logicalOR||this.type===F.logicalAND,a=this.value;this.next();var u=this.start,c=this.startLoc,l=this.parseExprOp(this.parseMaybeUnary(null,!1),u,c,s,i),p=this.buildBinary(t,n,e,l,a,o);return this.parseExprOp(p,t,n,r,i)}return e},Q.buildBinary=function(e,t,n,r,i,s){var o=this.startNodeAt(e,t);return o.left=n,o.operator=i,o.right=r,this.finishNode(o,s?"LogicalExpression":"BinaryExpression")},Q.parseMaybeUnary=function(e,t){var n,r=this,i=this.start,s=this.startLoc;if(this.inAsync&&this.isContextual("await"))n=this.parseAwait(e),t=!0;else if(this.type.prefix){var o=this.startNode(),a=this.type===F.incDec;o.operator=this.value,o.prefix=!0,this.next(),o.argument=this.parseMaybeUnary(null,!0),this.checkExpressionErrors(e,!0),a?this.checkLVal(o.argument):this.strict&&"delete"===o.operator&&"Identifier"===o.argument.type?this.raiseRecoverable(o.start,"Deleting local variable in strict mode"):t=!0,
6 n=this.finishNode(o,a?"UpdateExpression":"UnaryExpression")}else{if(n=this.parseExprSubscripts(e),this.checkExpressionErrors(e))return n;for(;this.type.postfix&&!this.canInsertSemicolon();){var u=r.startNodeAt(i,s);u.operator=r.value,u.prefix=!1,u.argument=n,r.checkLVal(n),r.next(),n=r.finishNode(u,"UpdateExpression")}}return!t&&this.eat(F.starstar)?this.buildBinary(i,s,n,this.parseMaybeUnary(null,!1),"**",!1):n},Q.parseExprSubscripts=function(e){var t=this.start,n=this.startLoc,r=this.parseExprAtom(e),i="ArrowFunctionExpression"===r.type&&")"!==this.input.slice(this.lastTokStart,this.lastTokEnd);return this.checkExpressionErrors(e)||i?r:this.parseSubscripts(r,t,n)},Q.parseSubscripts=function(e,t,n,r){for(var i=this;;){var s=i.options.ecmaVersion>=8&&"Identifier"===e.type&&"async"===e.name&&!i.canInsertSemicolon();if(i.eat(F.dot)){var o=i.startNodeAt(t,n);o.object=e,o.property=i.parseIdent(!0),o.computed=!1,e=i.finishNode(o,"MemberExpression")}else if(i.eat(F.bracketL)){var a=i.startNodeAt(t,n);a.object=e,a.property=i.parseExpression(),a.computed=!0,i.expect(F.bracketR),e=i.finishNode(a,"MemberExpression")}else if(!r&&i.eat(F.parenL)){var u=new W,c=i.yieldPos,l=i.awaitPos;i.yieldPos=0,i.awaitPos=0;var p=i.parseExprList(F.parenR,i.options.ecmaVersion>=8,!1,u);if(s&&!i.canInsertSemicolon()&&i.eat(F.arrow))return i.checkPatternErrors(u,!0),i.checkYieldAwaitInDefaultParams(),i.yieldPos=c,i.awaitPos=l,i.parseArrowExpression(i.startNodeAt(t,n),p,!0);i.checkExpressionErrors(u,!0),i.yieldPos=c||i.yieldPos,i.awaitPos=l||i.awaitPos;var h=i.startNodeAt(t,n);h.callee=e,h.arguments=p,e=i.finishNode(h,"CallExpression")}else{if(i.type!==F.backQuote)return e;var f=i.startNodeAt(t,n);f.tag=e,f.quasi=i.parseTemplate(),e=i.finishNode(f,"TaggedTemplateExpression")}}},Q.parseExprAtom=function(e){var t,n=this.potentialArrowAt==this.start;switch(this.type){case F._super:this.inFunction||this.raise(this.start,"'super' outside of function or class");case F._this:var r=this.type===F._this?"ThisExpression":"Super";return t=this.startNode(),this.next(),this.finishNode(t,r);case F.name:var i=this.start,s=this.startLoc,o=this.parseIdent(this.type!==F.name);if(this.options.ecmaVersion>=8&&"async"===o.name&&!this.canInsertSemicolon()&&this.eat(F._function))return this.parseFunction(this.startNodeAt(i,s),!1,!1,!0);if(n&&!this.canInsertSemicolon()){if(this.eat(F.arrow))return this.parseArrowExpression(this.startNodeAt(i,s),[o],!1);if(this.options.ecmaVersion>=8&&"async"===o.name&&this.type===F.name)return o=this.parseIdent(),!this.canInsertSemicolon()&&this.eat(F.arrow)||this.unexpected(),this.parseArrowExpression(this.startNodeAt(i,s),[o],!0)}return o;case F.regexp:var a=this.value;return t=this.parseLiteral(a.value),t.regex={pattern:a.pattern,flags:a.flags},t;case F.num:case F.string:return this.parseLiteral(this.value);case F._null:case F._true:case F._false:return t=this.startNode(),t.value=this.type===F._null?null:this.type===F._true,t.raw=this.type.keyword,this.next(),this.finishNode(t,"Literal");case F.parenL:return this.parseParenAndDistinguishExpression(n);case F.bracketL:return t=this.startNode(),this.next(),t.elements=this.parseExprList(F.bracketR,!0,!0,e),this.finishNode(t,"ArrayExpression");case F.braceL:return this.parseObj(!1,e);case F._function:return t=this.startNode(),this.next(),this.parseFunction(t,!1);case F._class:return this.parseClass(this.startNode(),!1);case F._new:return this.parseNew();case F.backQuote:return this.parseTemplate();default:this.unexpected()}},Q.parseLiteral=function(e){var t=this.startNode();return t.value=e,t.raw=this.input.slice(this.start,this.end),this.next(),this.finishNode(t,"Literal")},Q.parseParenExpression=function(){this.expect(F.parenL);var e=this.parseExpression();return this.expect(F.parenR),e},Q.parseParenAndDistinguishExpression=function(e){var t,n=this,r=this.start,i=this.startLoc,s=this.options.ecmaVersion>=8;if(this.options.ecmaVersion>=6){this.next();var o,a,u=this.start,c=this.startLoc,l=[],p=!0,h=!1,f=new W,d=this.yieldPos,y=this.awaitPos;for(this.yieldPos=0,this.awaitPos=0;this.type!==F.parenR;){if(p?p=!1:n.expect(F.comma),s&&n.afterTrailingComma(F.parenR,!0)){h=!0;break}if(n.type===F.ellipsis){o=n.start,l.push(n.parseParenItem(n.parseRest())),n.type===F.comma&&n.raise(n.start,"Comma is not permitted after the rest element");break}n.type!==F.parenL||a||(a=n.start),l.push(n.parseMaybeAssign(!1,f,n.parseParenItem))}var m=this.start,g=this.startLoc;if(this.expect(F.parenR),e&&!this.canInsertSemicolon()&&this.eat(F.arrow))return this.checkPatternErrors(f,!0),this.checkYieldAwaitInDefaultParams(),a&&this.unexpected(a),this.yieldPos=d,this.awaitPos=y,this.parseParenArrowList(r,i,l);l.length&&!h||this.unexpected(this.lastTokStart),o&&this.unexpected(o),this.checkExpressionErrors(f,!0),this.yieldPos=d||this.yieldPos,this.awaitPos=y||this.awaitPos,l.length>1?(t=this.startNodeAt(u,c),t.expressions=l,this.finishNodeAt(t,"SequenceExpression",m,g)):t=l[0]}else t=this.parseParenExpression();if(this.options.preserveParens){var v=this.startNodeAt(r,i);return v.expression=t,this.finishNode(v,"ParenthesizedExpression")}return t},Q.parseParenItem=function(e){return e},Q.parseParenArrowList=function(e,t,n){return this.parseArrowExpression(this.startNodeAt(e,t),n)};var X=[];Q.parseNew=function(){var e=this.startNode(),t=this.parseIdent(!0);if(this.options.ecmaVersion>=6&&this.eat(F.dot))return e.meta=t,e.property=this.parseIdent(!0),"target"!==e.property.name&&this.raiseRecoverable(e.property.start,"The only valid meta property for new is new.target"),this.inFunction||this.raiseRecoverable(e.start,"new.target can only be used in functions"),this.finishNode(e,"MetaProperty");var n=this.start,r=this.startLoc;return e.callee=this.parseSubscripts(this.parseExprAtom(),n,r,!0),this.eat(F.parenL)?e.arguments=this.parseExprList(F.parenR,this.options.ecmaVersion>=8,!1):e.arguments=X,this.finishNode(e,"NewExpression")},Q.parseTemplateElement=function(){var e=this.startNode();return e.value={raw:this.input.slice(this.start,this.end).replace(/\r\n?/g,"\n"),cooked:this.value},this.next(),e.tail=this.type===F.backQuote,this.finishNode(e,"TemplateElement")},Q.parseTemplate=function(){var e=this,t=this.startNode();this.next(),t.expressions=[];var n=this.parseTemplateElement();for(t.quasis=[n];!n.tail;)e.expect(F.dollarBraceL),t.expressions.push(e.parseExpression()),e.expect(F.braceR),t.quasis.push(n=e.parseTemplateElement());return this.next(),this.finishNode(t,"TemplateLiteral")},Q.parseObj=function(e,t){var n=this,r=this.startNode(),i=!0,s={};for(r.properties=[],this.next();!this.eat(F.braceR);){if(i)i=!1;else if(n.expect(F.comma),n.afterTrailingComma(F.braceR))break;var o,a,u,c,l=n.startNode();n.options.ecmaVersion>=6&&(l.method=!1,l.shorthand=!1,(e||t)&&(u=n.start,c=n.startLoc),e||(o=n.eat(F.star))),n.parsePropertyName(l),e||!(n.options.ecmaVersion>=8)||o||l.computed||"Identifier"!==l.key.type||"async"!==l.key.name||n.type===F.parenL||n.type===F.colon||n.canInsertSemicolon()?a=!1:(a=!0,n.parsePropertyName(l,t)),n.parsePropertyValue(l,e,o,a,u,c,t),n.checkPropClash(l,s),r.properties.push(n.finishNode(l,"Property"))}return this.finishNode(r,e?"ObjectPattern":"ObjectExpression")},Q.parsePropertyValue=function(e,t,n,r,i,s,o){if((n||r)&&this.type===F.colon&&this.unexpected(),this.eat(F.colon))e.value=t?this.parseMaybeDefault(this.start,this.startLoc):this.parseMaybeAssign(!1,o),e.kind="init";else if(this.options.ecmaVersion>=6&&this.type===F.parenL)t&&this.unexpected(),e.kind="init",e.method=!0,e.value=this.parseMethod(n,r);else if(this.options.ecmaVersion>=5&&!e.computed&&"Identifier"===e.key.type&&("get"===e.key.name||"set"===e.key.name)&&this.type!=F.comma&&this.type!=F.braceR){(n||r||t)&&this.unexpected(),e.kind=e.key.name,this.parsePropertyName(e),e.value=this.parseMethod(!1);var a="get"===e.kind?0:1;if(e.value.params.length!==a){var u=e.value.start;"get"===e.kind?this.raiseRecoverable(u,"getter should have no params"):this.raiseRecoverable(u,"setter should have exactly one param")}else"set"===e.kind&&"RestElement"===e.value.params[0].type&&this.raiseRecoverable(e.value.params[0].start,"Setter cannot use rest params")}else this.options.ecmaVersion>=6&&!e.computed&&"Identifier"===e.key.type?((this.keywords.test(e.key.name)||(this.strict?this.reservedWordsStrict:this.reservedWords).test(e.key.name)||this.inGenerator&&"yield"==e.key.name||this.inAsync&&"await"==e.key.name)&&this.raiseRecoverable(e.key.start,"'"+e.key.name+"' can not be used as shorthand property"),e.kind="init",t?e.value=this.parseMaybeDefault(i,s,e.key):this.type===F.eq&&o?(o.shorthandAssign||(o.shorthandAssign=this.start),e.value=this.parseMaybeDefault(i,s,e.key)):e.value=e.key,e.shorthand=!0):this.unexpected()},Q.parsePropertyName=function(e){if(this.options.ecmaVersion>=6){if(this.eat(F.bracketL))return e.computed=!0,e.key=this.parseMaybeAssign(),this.expect(F.bracketR),e.key;e.computed=!1}return e.key=this.type===F.num||this.type===F.string?this.parseExprAtom():this.parseIdent(!0)},Q.initFunction=function(e){e.id=null,this.options.ecmaVersion>=6&&(e.generator=!1,e.expression=!1),this.options.ecmaVersion>=8&&(e.async=!1)},Q.parseMethod=function(e,t){var n=this.startNode(),r=this.inGenerator,i=this.inAsync,s=this.yieldPos,o=this.awaitPos;return this.initFunction(n),this.options.ecmaVersion>=6&&(n.generator=e),this.options.ecmaVersion>=8&&(n.async=!!t),this.inGenerator=n.generator,this.inAsync=n.async,this.yieldPos=0,this.awaitPos=0,this.expect(F.parenL),n.params=this.parseBindingList(F.parenR,!1,this.options.ecmaVersion>=8),this.checkYieldAwaitInDefaultParams(),this.parseFunctionBody(n,!1),this.inGenerator=r,this.inAsync=i,this.yieldPos=s,this.awaitPos=o,this.finishNode(n,"FunctionExpression")},Q.parseArrowExpression=function(e,t,n){var r=this.inGenerator,i=this.inAsync,s=this.yieldPos,o=this.awaitPos;return this.initFunction(e),this.options.ecmaVersion>=8&&(e.async=!!n),this.inGenerator=!1,this.inAsync=e.async,this.yieldPos=0,this.awaitPos=0,e.params=this.toAssignableList(t,!0),this.parseFunctionBody(e,!0),this.inGenerator=r,this.inAsync=i,this.yieldPos=s,this.awaitPos=o,this.finishNode(e,"ArrowFunctionExpression")},Q.parseFunctionBody=function(e,t){var n=t&&this.type!==F.braceL;if(n)e.body=this.parseMaybeAssign(),e.expression=!0;else{var r=this.inFunction,i=this.labels;this.inFunction=!0,this.labels=[],e.body=this.parseBlock(!0),e.expression=!1,this.inFunction=r,this.labels=i}var s=!n&&e.body.body.length&&this.isUseStrict(e.body.body[0])?e.body.body[0]:null;if(s&&this.options.ecmaVersion>=7&&!this.isSimpleParamList(e.params)&&this.raiseRecoverable(s.start,"Illegal 'use strict' directive in function with non-simple parameter list"),this.strict||s){var o=this.strict;this.strict=!0,e.id&&this.checkLVal(e.id,!0),this.checkParams(e),this.strict=o}else!t&&this.isSimpleParamList(e.params)||this.checkParams(e)},Q.isSimpleParamList=function(e){for(var t=0;t<e.length;t++)if("Identifier"!==e[t].type)return!1;return!0},Q.checkParams=function(e){for(var t=this,n={},r=0;r<e.params.length;r++)t.checkLVal(e.params[r],!0,n)},Q.parseExprList=function(e,t,n,r){for(var i=this,s=[],o=!0;!this.eat(e);){if(o)o=!1;else if(i.expect(F.comma),t&&i.afterTrailingComma(e))break;var a;n&&i.type===F.comma?a=null:i.type===F.ellipsis?(a=i.parseSpread(r),i.type===F.comma&&r&&!r.trailingComma&&(r.trailingComma=i.start)):a=i.parseMaybeAssign(!1,r),s.push(a)}return s},Q.parseIdent=function(e){var t=this.startNode();return e&&"never"==this.options.allowReserved&&(e=!1),this.type===F.name?(!e&&(this.strict?this.reservedWordsStrict:this.reservedWords).test(this.value)&&(this.options.ecmaVersion>=6||this.input.slice(this.start,this.end).indexOf("\\")==-1)&&this.raiseRecoverable(this.start,"The keyword '"+this.value+"' is reserved"),this.inGenerator&&"yield"===this.value&&this.raiseRecoverable(this.start,"Can not use 'yield' as identifier inside a generator"),this.inAsync&&"await"===this.value&&this.raiseRecoverable(this.start,"Can not use 'await' as identifier inside an async function"),t.name=this.value):e&&this.type.keyword?t.name=this.type.keyword:this.unexpected(),this.next(),this.finishNode(t,"Identifier")},Q.parseYield=function(){this.yieldPos||(this.yieldPos=this.start);var e=this.startNode();return this.next(),this.type==F.semi||this.canInsertSemicolon()||this.type!=F.star&&!this.type.startsExpr?(e.delegate=!1,e.argument=null):(e.delegate=this.eat(F.star),e.argument=this.parseMaybeAssign()),this.finishNode(e,"YieldExpression")},Q.parseAwait=function(){this.awaitPos||(this.awaitPos=this.start);var e=this.startNode();return this.next(),e.argument=this.parseMaybeUnary(null,!0),this.finishNode(e,"AwaitExpression")};var Z=U.prototype;Z.raise=function(e,t){var n=c(this.input,e);t+=" ("+n.line+":"+n.column+")";var r=new SyntaxError(t);throw r.pos=e,r.loc=n,r.raisedAt=this.pos,r},Z.raiseRecoverable=Z.raise,Z.curPosition=function(){if(this.options.locations)return new j(this.curLine,this.pos-this.lineStart)};var K=function(e,t,n){this.type="",this.start=t,this.end=0,e.options.locations&&(this.loc=new M(e,n)),e.options.directSourceFile&&(this.sourceFile=e.options.directSourceFile),e.options.ranges&&(this.range=[t,0])},ee=U.prototype;ee.startNode=function(){return new K(this,this.start,this.startLoc)},ee.startNodeAt=function(e,t){return new K(this,e,t)},ee.finishNode=function(e,t){return f.call(this,e,t,this.lastTokEnd,this.lastTokEndLoc)},ee.finishNodeAt=function(e,t,n,r){return f.call(this,e,t,n,r)};var te=function(e,t,n,r){this.token=e,this.isExpr=!!t,this.preserveSpace=!!n,this.override=r},ne={b_stat:new te("{",!1),b_expr:new te("{",!0),b_tmpl:new te("${",!0),p_stat:new te("(",!1),p_expr:new te("(",!0),q_tmpl:new te("`",!0,!0,function(e){return e.readTmplToken()}),f_expr:new te("function",!0)},re=U.prototype;re.initialContext=function(){return[ne.b_stat]},re.braceIsBlock=function(e){if(e===F.colon){var t=this.curContext();if(t===ne.b_stat||t===ne.b_expr)return!t.isExpr}return e===F._return?N.test(this.input.slice(this.lastTokEnd,this.start)):e===F._else||e===F.semi||e===F.eof||e===F.parenR||(e==F.braceL?this.curContext()===ne.b_stat:!this.exprAllowed)},re.updateContext=function(e){var t,n=this.type;n.keyword&&e==F.dot?this.exprAllowed=!1:(t=n.updateContext)?t.call(this,e):this.exprAllowed=n.beforeExpr},F.parenR.updateContext=F.braceR.updateContext=function(){if(1==this.context.length)return void(this.exprAllowed=!0);var e=this.context.pop();e===ne.b_stat&&this.curContext()===ne.f_expr?(this.context.pop(),this.exprAllowed=!1):e===ne.b_tmpl?this.exprAllowed=!0:this.exprAllowed=!e.isExpr},F.braceL.updateContext=function(e){this.context.push(this.braceIsBlock(e)?ne.b_stat:ne.b_expr),this.exprAllowed=!0},F.dollarBraceL.updateContext=function(){this.context.push(ne.b_tmpl),this.exprAllowed=!0},F.parenL.updateContext=function(e){var t=e===F._if||e===F._for||e===F._with||e===F._while;this.context.push(t?ne.p_stat:ne.p_expr),this.exprAllowed=!0},F.incDec.updateContext=function(){},F._function.updateContext=function(e){e.beforeExpr&&e!==F.semi&&e!==F._else&&(e!==F.colon&&e!==F.braceL||this.curContext()!==ne.b_stat)&&this.context.push(ne.f_expr),this.exprAllowed=!1},F.backQuote.updateContext=function(){this.curContext()===ne.q_tmpl?this.context.pop():this.context.push(ne.q_tmpl),this.exprAllowed=!1};var ie=function(e){this.type=e.type,this.value=e.value,this.start=e.start,this.end=e.end,e.options.locations&&(this.loc=new M(e,e.startLoc,e.endLoc)),e.options.ranges&&(this.range=[e.start,e.end])},se=U.prototype,oe="object"==typeof Packages&&"[object JavaPackage]"==Object.prototype.toString.call(Packages);se.next=function(){this.options.onToken&&this.options.onToken(new ie(this)),this.lastTokEnd=this.end,this.lastTokStart=this.start,this.lastTokEndLoc=this.endLoc,this.lastTokStartLoc=this.startLoc,this.nextToken()},se.getToken=function(){return this.next(),new ie(this)},"undefined"!=typeof Symbol&&(se[Symbol.iterator]=function(){var e=this;return{next:function(){var t=e.getToken();return{done:t.type===F.eof,value:t}}}}),se.setStrict=function(e){var t=this;if(this.strict=e,this.type===F.num||this.type===F.string){if(this.pos=this.start,this.options.locations)for(;this.pos<this.lineStart;)t.lineStart=t.input.lastIndexOf("\n",t.lineStart-2)+1,--t.curLine;this.nextToken()}},se.curContext=function(){return this.context[this.context.length-1]},se.nextToken=function(){var e=this.curContext();return e&&e.preserveSpace||this.skipSpace(),this.start=this.pos,this.options.locations&&(this.startLoc=this.curPosition()),this.pos>=this.input.length?this.finishToken(F.eof):e.override?e.override(this):void this.readToken(this.fullCharCodeAtPos())},se.readToken=function(e){return n(e,this.options.ecmaVersion>=6)||92===e?this.readWord():this.getTokenFromCode(e)},se.fullCharCodeAtPos=function(){var e=this.input.charCodeAt(this.pos);return e<=55295||e>=57344?e:(e<<10)+this.input.charCodeAt(this.pos+1)-56613888},se.skipBlockComment=function(){var e=this,t=this.options.onComment&&this.curPosition(),n=this.pos,r=this.input.indexOf("*/",this.pos+=2);if(r===-1&&this.raise(this.pos-2,"Unterminated comment"),this.pos=r+2,this.options.locations){$.lastIndex=n;for(var i;(i=$.exec(this.input))&&i.index<this.pos;)++e.curLine,e.lineStart=i.index+i[0].length}this.options.onComment&&this.options.onComment(!0,this.input.slice(n+2,r),n,this.pos,t,this.curPosition())},se.skipLineComment=function(e){for(var t=this,n=this.pos,r=this.options.onComment&&this.curPosition(),i=this.input.charCodeAt(this.pos+=e);this.pos<this.input.length&&10!==i&&13!==i&&8232!==i&&8233!==i;)++t.pos,i=t.input.charCodeAt(t.pos);this.options.onComment&&this.options.onComment(!1,this.input.slice(n+e,this.pos),n,this.pos,r,this.curPosition())},se.skipSpace=function(){var e=this;e:for(;this.pos<this.input.length;){var t=e.input.charCodeAt(e.pos);switch(t){case 32:case 160:++e.pos;break;case 13:10===e.input.charCodeAt(e.pos+1)&&++e.pos;case 10:case 8232:case 8233:++e.pos,e.options.locations&&(++e.curLine,e.lineStart=e.pos);break;case 47:switch(e.input.charCodeAt(e.pos+1)){case 42:e.skipBlockComment();break;case 47:e.skipLineComment(2);break;default:break e}break;default:if(!(t>8&&t<14||t>=5760&&B.test(String.fromCharCode(t))))break e;++e.pos}}},se.finishToken=function(e,t){this.end=this.pos,this.options.locations&&(this.endLoc=this.curPosition());var n=this.type;this.type=e,this.value=t,this.updateContext(n)},se.readToken_dot=function(){var e=this.input.charCodeAt(this.pos+1);if(e>=48&&e<=57)return this.readNumber(!0);var t=this.input.charCodeAt(this.pos+2);return this.options.ecmaVersion>=6&&46===e&&46===t?(this.pos+=3,this.finishToken(F.ellipsis)):(++this.pos,this.finishToken(F.dot))},se.readToken_slash=function(){var e=this.input.charCodeAt(this.pos+1);return this.exprAllowed?(++this.pos,this.readRegexp()):61===e?this.finishOp(F.assign,2):this.finishOp(F.slash,1)},se.readToken_mult_modulo_exp=function(e){var t=this.input.charCodeAt(this.pos+1),n=1,r=42===e?F.star:F.modulo;return this.options.ecmaVersion>=7&&42===t&&(++n,r=F.starstar,t=this.input.charCodeAt(this.pos+2)),61===t?this.finishOp(F.assign,n+1):this.finishOp(r,n)},se.readToken_pipe_amp=function(e){var t=this.input.charCodeAt(this.pos+1);return t===e?this.finishOp(124===e?F.logicalOR:F.logicalAND,2):61===t?this.finishOp(F.assign,2):this.finishOp(124===e?F.bitwiseOR:F.bitwiseAND,1)},se.readToken_caret=function(){return 61===this.input.charCodeAt(this.pos+1)?this.finishOp(F.assign,2):this.finishOp(F.bitwiseXOR,1)},se.readToken_plus_min=function(e){var t=this.input.charCodeAt(this.pos+1);return t===e?45==t&&62==this.input.charCodeAt(this.pos+2)&&N.test(this.input.slice(this.lastTokEnd,this.pos))?(this.skipLineComment(3),this.skipSpace(),this.nextToken()):this.finishOp(F.incDec,2):61===t?this.finishOp(F.assign,2):this.finishOp(F.plusMin,1)},se.readToken_lt_gt=function(e){var t=this.input.charCodeAt(this.pos+1),n=1;return t===e?(n=62===e&&62===this.input.charCodeAt(this.pos+2)?3:2,61===this.input.charCodeAt(this.pos+n)?this.finishOp(F.assign,n+1):this.finishOp(F.bitShift,n)):33==t&&60==e&&45==this.input.charCodeAt(this.pos+2)&&45==this.input.charCodeAt(this.pos+3)?(this.inModule&&this.unexpected(),this.skipLineComment(4),this.skipSpace(),this.nextToken()):(61===t&&(n=2),this.finishOp(F.relational,n))},se.readToken_eq_excl=function(e){var t=this.input.charCodeAt(this.pos+1);return 61===t?this.finishOp(F.equality,61===this.input.charCodeAt(this.pos+2)?3:2):61===e&&62===t&&this.options.ecmaVersion>=6?(this.pos+=2,this.finishToken(F.arrow)):this.finishOp(61===e?F.eq:F.prefix,1)},se.getTokenFromCode=function(e){switch(e){case 46:return this.readToken_dot();case 40:return++this.pos,this.finishToken(F.parenL);case 41:return++this.pos,this.finishToken(F.parenR);case 59:return++this.pos,this.finishToken(F.semi);case 44:return++this.pos,this.finishToken(F.comma);case 91:return++this.pos,this.finishToken(F.bracketL);case 93:return++this.pos,this.finishToken(F.bracketR);case 123:return++this.pos,this.finishToken(F.braceL);case 125:return++this.pos,this.finishToken(F.braceR);case 58:return++this.pos,this.finishToken(F.colon);case 63:return++this.pos,this.finishToken(F.question);case 96:if(this.options.ecmaVersion<6)break;return++this.pos,this.finishToken(F.backQuote);case 48:var t=this.input.charCodeAt(this.pos+1);if(120===t||88===t)return this.readRadixNumber(16);if(this.options.ecmaVersion>=6){if(111===t||79===t)return this.readRadixNumber(8);if(98===t||66===t)return this.readRadixNumber(2)}case 49:case 50:case 51:case 52:case 53:case 54:case 55:case 56:case 57:return this.readNumber(!1);case 34:case 39:return this.readString(e);case 47:return this.readToken_slash();case 37:case 42:return this.readToken_mult_modulo_exp(e);case 124:case 38:return this.readToken_pipe_amp(e);case 94:return this.readToken_caret();case 43:case 45:return this.readToken_plus_min(e);case 60:case 62:return this.readToken_lt_gt(e);case 61:case 33:return this.readToken_eq_excl(e);case 126:return this.finishOp(F.prefix,1)}this.raise(this.pos,"Unexpected character '"+y(e)+"'")},se.finishOp=function(e,t){var n=this.input.slice(this.pos,this.pos+t);return this.pos+=t,this.finishToken(e,n)};var ae=!!d("","u");se.readRegexp=function(){for(var e,t,n=this,r=this.pos;;){n.pos>=n.input.length&&n.raise(r,"Unterminated regular expression");var i=n.input.charAt(n.pos);if(N.test(i)&&n.raise(r,"Unterminated regular expression"),e)e=!1;else{if("["===i)t=!0;else if("]"===i&&t)t=!1;else if("/"===i&&!t)break;e="\\"===i}++n.pos}var s=this.input.slice(r,this.pos);++this.pos;var o=this.readWord1(),a=s,u="";if(o){var c=/^[gim]*$/;this.options.ecmaVersion>=6&&(c=/^[gimuy]*$/),c.test(o)||this.raise(r,"Invalid regular expression flag"),o.indexOf("u")>=0&&(ae?u="u":(a=a.replace(/\\u\{([0-9a-fA-F]+)\}/g,function(e,t,i){return t=Number("0x"+t),t>1114111&&n.raise(r+i+3,"Code point out of bounds"),"x"}),a=a.replace(/\\u([a-fA-F0-9]{4})|[\uD800-\uDBFF][\uDC00-\uDFFF]/g,"x"),u=u.replace("u","")))}var l=null;return oe||(d(a,u,r,this),l=d(s,o)),this.finishToken(F.regexp,{pattern:s,flags:o,value:l})},se.readInt=function(e,t){for(var n=this,r=this.pos,i=0,s=0,o=null==t?1/0:t;s<o;++s){var a,u=n.input.charCodeAt(n.pos);if(a=u>=97?u-97+10:u>=65?u-65+10:u>=48&&u<=57?u-48:1/0,a>=e)break;++n.pos,i=i*e+a}return this.pos===r||null!=t&&this.pos-r!==t?null:i},se.readRadixNumber=function(e){this.pos+=2;var t=this.readInt(e);return null==t&&this.raise(this.start+2,"Expected number in radix "+e),n(this.fullCharCodeAtPos())&&this.raise(this.pos,"Identifier directly after number"),this.finishToken(F.num,t)},se.readNumber=function(e){var t=this.pos,r=!1,i=48===this.input.charCodeAt(this.pos);e||null!==this.readInt(10)||this.raise(t,"Invalid number"),i&&this.pos==t+1&&(i=!1);var s=this.input.charCodeAt(this.pos);46!==s||i||(++this.pos,this.readInt(10),r=!0,s=this.input.charCodeAt(this.pos)),69!==s&&101!==s||i||(s=this.input.charCodeAt(++this.pos),43!==s&&45!==s||++this.pos,null===this.readInt(10)&&this.raise(t,"Invalid number"),r=!0),n(this.fullCharCodeAtPos())&&this.raise(this.pos,"Identifier directly after number");var o,a=this.input.slice(t,this.pos);return r?o=parseFloat(a):i&&1!==a.length?/[89]/.test(a)||this.strict?this.raise(t,"Invalid number"):o=parseInt(a,8):o=parseInt(a,10),this.finishToken(F.num,o)},se.readCodePoint=function(){var e,t=this.input.charCodeAt(this.pos);if(123===t){this.options.ecmaVersion<6&&this.unexpected();var n=++this.pos;e=this.readHexChar(this.input.indexOf("}",this.pos)-this.pos),++this.pos,e>1114111&&this.raise(n,"Code point out of bounds")}else e=this.readHexChar(4);return e},se.readString=function(e){for(var t=this,n="",r=++this.pos;;){t.pos>=t.input.length&&t.raise(t.start,"Unterminated string constant");var i=t.input.charCodeAt(t.pos);if(i===e)break;92===i?(n+=t.input.slice(r,t.pos),n+=t.readEscapedChar(!1),r=t.pos):(o(i)&&t.raise(t.start,"Unterminated string constant"),++t.pos)}return n+=this.input.slice(r,this.pos++),this.finishToken(F.string,n)},se.readTmplToken=function(){for(var e=this,t="",n=this.pos;;){e.pos>=e.input.length&&e.raise(e.start,"Unterminated template");var r=e.input.charCodeAt(e.pos);if(96===r||36===r&&123===e.input.charCodeAt(e.pos+1))return e.pos===e.start&&e.type===F.template?36===r?(e.pos+=2,e.finishToken(F.dollarBraceL)):(++e.pos,e.finishToken(F.backQuote)):(t+=e.input.slice(n,e.pos),e.finishToken(F.template,t));if(92===r)t+=e.input.slice(n,e.pos),t+=e.readEscapedChar(!0),n=e.pos;else if(o(r)){switch(t+=e.input.slice(n,e.pos),++e.pos,r){case 13:10===e.input.charCodeAt(e.pos)&&++e.pos;case 10:t+="\n";break;default:t+=String.fromCharCode(r)}e.options.locations&&(++e.curLine,e.lineStart=e.pos),n=e.pos}else++e.pos}},se.readEscapedChar=function(e){var t=this.input.charCodeAt(++this.pos);switch(++this.pos,t){case 110:return"\n";case 114:return"\r";case 120:return String.fromCharCode(this.readHexChar(2));case 117:return y(this.readCodePoint());case 116:return"\t";case 98:return"\b";case 118:return"\v";case 102:return"\f";case 13:10===this.input.charCodeAt(this.pos)&&++this.pos;case 10:return this.options.locations&&(this.lineStart=this.pos,++this.curLine),"";default:if(t>=48&&t<=55){var n=this.input.substr(this.pos-1,3).match(/^[0-7]+/)[0],r=parseInt(n,8);return r>255&&(n=n.slice(0,-1),r=parseInt(n,8)),"0"!==n&&(this.strict||e)&&this.raise(this.pos-2,"Octal literal in strict mode"),this.pos+=n.length-1,String.fromCharCode(r)}return String.fromCharCode(t)}},se.readHexChar=function(e){var t=this.pos,n=this.readInt(16,e);return null===n&&this.raise(t,"Bad character escape sequence"),n},se.readWord1=function(){var e=this;this.containsEsc=!1;for(var t="",i=!0,s=this.pos,o=this.options.ecmaVersion>=6;this.pos<this.input.length;){var a=e.fullCharCodeAtPos();if(r(a,o))e.pos+=a<=65535?1:2;else{if(92!==a)break;e.containsEsc=!0,t+=e.input.slice(s,e.pos);var u=e.pos;117!=e.input.charCodeAt(++e.pos)&&e.raise(e.pos,"Expecting Unicode escape sequence \\uXXXX"),++e.pos;var c=e.readCodePoint();(i?n:r)(c,o)||e.raise(u,"Invalid Unicode escape"),t+=y(c),s=e.pos}i=!1}return t+this.input.slice(s,this.pos)},se.readWord=function(){var e=this.readWord1(),t=F.name;return(this.options.ecmaVersion>=6||!this.containsEsc)&&this.keywords.test(e)&&(t=O[e]),this.finishToken(t,e)},e.version="4.0.4",e.parse=m,e.parseExpressionAt=g,e.tokenizer=v,e.addLooseExports=b,e.Parser=U,e.plugins=V,e.defaultOptions=D,e.Position=j,e.SourceLocation=M,e.getLineInfo=c,e.Node=K,e.TokenType=P,e.tokTypes=F,e.TokContext=te,e.tokContexts=ne,e.isIdentifierChar=r,e.isIdentifierStart=n,e.Token=ie,e.isNewLine=o,e.lineBreak=N,e.lineBreakG=$,Object.defineProperty(e,"__esModule",{value:!0})})},{}],16:[function(e,t,n){!function(e,r){"object"==typeof n&&void 0!==t?r(n):"function"==typeof define&&define.amd?define(["exports"],r):r((e.acorn=e.acorn||{},e.acorn.walk=e.acorn.walk||{}))}(this,function(e){"use strict";function t(t,n,r,i,s){r||(r=e.base),function e(t,i,s){var o=s||t.type,a=n[o];r[o](t,i,e),a&&a(t,i)}(t,i,s)}function n(t,n,r,i){r||(r=e.base);var s=[];!function e(t,i,o){var a=o||t.type,u=n[a],c=t!=s[s.length-1];c&&s.push(t),r[a](t,i,e),u&&u(t,i||s,s),c&&s.pop()}(t,i)}function r(t,n,r,i,s){var o=r?e.make(r,i):i;!function e(t,n,r){o[r||t.type](t,n,e)}(t,n,s)}function i(e){return"string"==typeof e?function(t){return t==e}:e?e:function(){return!0}}function s(t,n,r,s,o,a){s=i(s),o||(o=e.base);try{!function e(t,i,a){var u=a||t.type;if((null==n||t.start<=n)&&(null==r||t.end>=r)&&o[u](t,i,e),(null==n||t.start==n)&&(null==r||t.end==r)&&s(u,t))throw new h(t,i)}(t,a)}catch(e){if(e instanceof h)return e;throw e}}function o(t,n,r,s,o){r=i(r),s||(s=e.base);try{!function e(t,i,o){var 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null!=t&&null!=u&&(t=a.join(u,t)),{source:t,generatedLine:e.generatedLine,generatedColumn:e.generatedColumn,originalLine:e.originalLine,originalColumn:e.originalColumn,name:null===e.name?null:this._names.at(e.name)}},this).forEach(e,s)},r.prototype.allGeneratedPositionsFor=function(e){var t=a.getArg(e,"line"),n={source:a.getArg(e,"source"),originalLine:t,originalColumn:a.getArg(e,"column",0)};if(null!=this.sourceRoot&&(n.source=a.relative(this.sourceRoot,n.source)),!this._sources.has(n.source))return[];n.source=this._sources.indexOf(n.source);var r=[],i=this._findMapping(n,this._originalMappings,"originalLine","originalColumn",a.compareByOriginalPositions,u.LEAST_UPPER_BOUND);if(i>=0){var s=this._originalMappings[i];if(void 0===e.column)for(var o=s.originalLine;s&&s.originalLine===o;)r.push({line:a.getArg(s,"generatedLine",null),column:a.getArg(s,"generatedColumn",null),lastColumn:a.getArg(s,"lastGeneratedColumn",null)}),s=this._originalMappings[++i];else for(var c=s.originalColumn;s&&s.originalLine===t&&s.originalColumn==c;)r.push({line:a.getArg(s,"generatedLine",null),column:a.getArg(s,"generatedColumn",null),lastColumn:a.getArg(s,"lastGeneratedColumn",null)}),s=this._originalMappings[++i]}return r},n.SourceMapConsumer=r,i.prototype=Object.create(r.prototype),i.prototype.consumer=r,i.fromSourceMap=function(e){var t=Object.create(i.prototype),n=t._names=c.fromArray(e._names.toArray(),!0),r=t._sources=c.fromArray(e._sources.toArray(),!0);t.sourceRoot=e._sourceRoot,t.sourcesContent=e._generateSourcesContent(t._sources.toArray(),t.sourceRoot),t.file=e._file;for(var o=e._mappings.toArray().slice(),u=t.__generatedMappings=[],l=t.__originalMappings=[],h=0,f=o.length;h<f;h++){var d=o[h],y=new s;y.generatedLine=d.generatedLine,y.generatedColumn=d.generatedColumn,d.source&&(y.source=r.indexOf(d.source),y.originalLine=d.originalLine,y.originalColumn=d.originalColumn,d.name&&(y.name=n.indexOf(d.name)),l.push(y)),u.push(y)}return p(t.__originalMappings,a.compareByOriginalPositions),t},i.prototype._version=3,Object.defineProperty(i.prototype,"sources",{get:function(){return this._sources.toArray().map(function(e){return null!=this.sourceRoot?a.join(this.sourceRoot,e):e},this)}}),i.prototype._parseMappings=function(e,t){for(var n,r,i,o,u,c=1,h=0,f=0,d=0,y=0,m=0,g=e.length,v=0,b={},x={},w=[],E=[];v<g;)if(";"===e.charAt(v))c++,v++,h=0;else if(","===e.charAt(v))v++;else{for(n=new s,n.generatedLine=c,o=v;o<g&&!this._charIsMappingSeparator(e,o);o++);if(r=e.slice(v,o),i=b[r])v+=r.length;else{for(i=[];v<o;)l.decode(e,v,x),u=x.value,v=x.rest,i.push(u);if(2===i.length)throw new Error("Found a source, but no line and column");if(3===i.length)throw new Error("Found a source and line, but no column");b[r]=i}n.generatedColumn=h+i[0],h=n.generatedColumn,i.length>1&&(n.source=y+i[1],y+=i[1],n.originalLine=f+i[2],f=n.originalLine,n.originalLine+=1,n.originalColumn=d+i[3],d=n.originalColumn,i.length>4&&(n.name=m+i[4],m+=i[4])),E.push(n),"number"==typeof n.originalLine&&w.push(n)}p(E,a.compareByGeneratedPositionsDeflated),this.__generatedMappings=E,p(w,a.compareByOriginalPositions),this.__originalMappings=w},i.prototype._findMapping=function(e,t,n,r,i,s){if(e[n]<=0)throw new TypeError("Line must be greater than or equal to 1, got "+e[n]);if(e[r]<0)throw new TypeError("Column must be greater than or equal to 0, got "+e[r]);return u.search(e,t,i,s)},i.prototype.computeColumnSpans=function(){for(var e=0;e<this._generatedMappings.length;++e){var t=this._generatedMappings[e];if(e+1<this._generatedMappings.length){var n=this._generatedMappings[e+1];if(t.generatedLine===n.generatedLine){t.lastGeneratedColumn=n.generatedColumn-1;continue}}t.lastGeneratedColumn=1/0}},i.prototype.originalPositionFor=function(e){var t={generatedLine:a.getArg(e,"line"),generatedColumn:a.getArg(e,"column")},n=this._findMapping(t,this._generatedMappings,"generatedLine","generatedColumn",a.compareByGeneratedPositionsDeflated,a.getArg(e,"bias",r.GREATEST_LOWER_BOUND));if(n>=0){var i=this._generatedMappings[n];if(i.generatedLine===t.generatedLine){var s=a.getArg(i,"source",null);null!==s&&(s=this._sources.at(s),null!=this.sourceRoot&&(s=a.join(this.sourceRoot,s)));var o=a.getArg(i,"name",null);return null!==o&&(o=this._names.at(o)),{source:s,line:a.getArg(i,"originalLine",null),column:a.getArg(i,"originalColumn",null),name:o}}}return{source:null,line:null,column:null,name:null}},i.prototype.hasContentsOfAllSources=function(){return!!this.sourcesContent&&(this.sourcesContent.length>=this._sources.size()&&!this.sourcesContent.some(function(e){return null==e}))},i.prototype.sourceContentFor=function(e,t){if(!this.sourcesContent)return null;if(null!=this.sourceRoot&&(e=a.relative(this.sourceRoot,e)),this._sources.has(e))return this.sourcesContent[this._sources.indexOf(e)];var n;if(null!=this.sourceRoot&&(n=a.urlParse(this.sourceRoot))){var r=e.replace(/^file:\/\//,"");if("file"==n.scheme&&this._sources.has(r))return this.sourcesContent[this._sources.indexOf(r)];if((!n.path||"/"==n.path)&&this._sources.has("/"+e))return this.sourcesContent[this._sources.indexOf("/"+e)]}if(t)return null;throw new Error('"'+e+'" is not in the SourceMap.')},i.prototype.generatedPositionFor=function(e){var t=a.getArg(e,"source");if(null!=this.sourceRoot&&(t=a.relative(this.sourceRoot,t)),!this._sources.has(t))return{line:null,column:null,lastColumn:null};t=this._sources.indexOf(t);var n={source:t,originalLine:a.getArg(e,"line"),originalColumn:a.getArg(e,"column")},i=this._findMapping(n,this._originalMappings,"originalLine","originalColumn",a.compareByOriginalPositions,a.getArg(e,"bias",r.GREATEST_LOWER_BOUND));if(i>=0){var s=this._originalMappings[i];if(s.source===n.source)return{line:a.getArg(s,"generatedLine",null),column:a.getArg(s,"generatedColumn",null),lastColumn:a.getArg(s,"lastGeneratedColumn",null)}}return{line:null,column:null,lastColumn:null}},n.BasicSourceMapConsumer=i,o.prototype=Object.create(r.prototype),o.prototype.constructor=r,o.prototype._version=3,Object.defineProperty(o.prototype,"sources",{get:function(){for(var e=[],t=0;t<this._sections.length;t++)for(var n=0;n<this._sections[t].consumer.sources.length;n++)e.push(this._sections[t].consumer.sources[n]);return e}}),o.prototype.originalPositionFor=function(e){var t={generatedLine:a.getArg(e,"line"),generatedColumn:a.getArg(e,"column")},n=u.search(t,this._sections,function(e,t){var n=e.generatedLine-t.generatedOffset.generatedLine;return n?n:e.generatedColumn-t.generatedOffset.generatedColumn}),r=this._sections[n];return r?r.consumer.originalPositionFor({line:t.generatedLine-(r.generatedOffset.generatedLine-1),column:t.generatedColumn-(r.generatedOffset.generatedLine===t.generatedLine?r.generatedOffset.generatedColumn-1:0),bias:e.bias}):{source:null,line:null,column:null,name:null}},o.prototype.hasContentsOfAllSources=function(){return this._sections.every(function(e){return e.consumer.hasContentsOfAllSources()})},o.prototype.sourceContentFor=function(e,t){for(var n=0;n<this._sections.length;n++){var r=this._sections[n],i=r.consumer.sourceContentFor(e,!0);if(i)return i}if(t)return null;throw new Error('"'+e+'" is not in the SourceMap.')},o.prototype.generatedPositionFor=function(e){for(var t=0;t<this._sections.length;t++){var n=this._sections[t];if(n.consumer.sources.indexOf(a.getArg(e,"source"))!==-1){var r=n.consumer.generatedPositionFor(e);if(r){return{line:r.line+(n.generatedOffset.generatedLine-1),column:r.column+(n.generatedOffset.generatedLine===r.line?n.generatedOffset.generatedColumn-1:0)}}}}return{line:null,column:null}},o.prototype._parseMappings=function(e,t){this.__generatedMappings=[],this.__originalMappings=[];for(var n=0;n<this._sections.length;n++)for(var r=this._sections[n],i=r.consumer._generatedMappings,s=0;s<i.length;s++){var o=i[s],u=r.consumer._sources.at(o.source);null!==r.consumer.sourceRoot&&(u=a.join(r.consumer.sourceRoot,u)),this._sources.add(u),u=this._sources.indexOf(u);var c=r.consumer._names.at(o.name);this._names.add(c),c=this._names.indexOf(c);var l={source:u,generatedLine:o.generatedLine+(r.generatedOffset.generatedLine-1),generatedColumn:o.generatedColumn+(r.generatedOffset.generatedLine===o.generatedLine?r.generatedOffset.generatedColumn-1:0),originalLine:o.originalLine,originalColumn:o.originalColumn,name:c};this.__generatedMappings.push(l),"number"==typeof l.originalLine&&this.__originalMappings.push(l)}p(this.__generatedMappings,a.compareByGeneratedPositionsDeflated),p(this.__originalMappings,a.compareByOriginalPositions)},n.IndexedSourceMapConsumer=o},{"./array-set":27,"./base64-vlq":28,"./binary-search":30,"./quick-sort":32,"./util":36}],34:[function(e,t,n){function r(e){e||(e={}),this._file=s.getArg(e,"file",null),this._sourceRoot=s.getArg(e,"sourceRoot",null),this._skipValidation=s.getArg(e,"skipValidation",!1),this._sources=new o,this._names=new o,this._mappings=new a,this._sourcesContents=null}var i=e("./base64-vlq"),s=e("./util"),o=e("./array-set").ArraySet,a=e("./mapping-list").MappingList;r.prototype._version=3,r.fromSourceMap=function(e){var t=e.sourceRoot,n=new r({file:e.file,sourceRoot:t});return e.eachMapping(function(e){var r={generated:{line:e.generatedLine,column:e.generatedColumn}};null!=e.source&&(r.source=e.source,null!=t&&(r.source=s.relative(t,r.source)),r.original={line:e.originalLine,column:e.originalColumn},null!=e.name&&(r.name=e.name)),n.addMapping(r)}),e.sources.forEach(function(t){var r=e.sourceContentFor(t);null!=r&&n.setSourceContent(t,r)}),n},r.prototype.addMapping=function(e){var t=s.getArg(e,"generated"),n=s.getArg(e,"original",null),r=s.getArg(e,"source",null),i=s.getArg(e,"name",null);this._skipValidation||this._validateMapping(t,n,r,i),null!=r&&(r=String(r),this._sources.has(r)||this._sources.add(r)),null!=i&&(i=String(i),this._names.has(i)||this._names.add(i)),this._mappings.add({generatedLine:t.line,generatedColumn:t.column,originalLine:null!=n&&n.line,originalColumn:null!=n&&n.column,source:r,name:i})},r.prototype.setSourceContent=function(e,t){var n=e;null!=this._sourceRoot&&(n=s.relative(this._sourceRoot,n)),null!=t?(this._sourcesContents||(this._sourcesContents=Object.create(null)),this._sourcesContents[s.toSetString(n)]=t):this._sourcesContents&&(delete this._sourcesContents[s.toSetString(n)],0===Object.keys(this._sourcesContents).length&&(this._sourcesContents=null))},r.prototype.applySourceMap=function(e,t,n){var r=t;if(null==t){if(null==e.file)throw new Error('SourceMapGenerator.prototype.applySourceMap requires either an explicit source file, or the source map\'s "file" property. Both were omitted.');r=e.file}var i=this._sourceRoot;null!=i&&(r=s.relative(i,r));var a=new o,u=new o;this._mappings.unsortedForEach(function(t){if(t.source===r&&null!=t.originalLine){var o=e.originalPositionFor({line:t.originalLine,column:t.originalColumn});null!=o.source&&(t.source=o.source,null!=n&&(t.source=s.join(n,t.source)),null!=i&&(t.source=s.relative(i,t.source)),t.originalLine=o.line,t.originalColumn=o.column,null!=o.name&&(t.name=o.name))}var c=t.source;null==c||a.has(c)||a.add(c);var l=t.name;null==l||u.has(l)||u.add(l)},this),this._sources=a,this._names=u,e.sources.forEach(function(t){var r=e.sourceContentFor(t);null!=r&&(null!=n&&(t=s.join(n,t)),null!=i&&(t=s.relative(i,t)),this.setSourceContent(t,r))},this)},r.prototype._validateMapping=function(e,t,n,r){if((!(e&&"line"in e&&"column"in e&&e.line>0&&e.column>=0)||t||n||r)&&!(e&&"line"in e&&"column"in e&&t&&"line"in t&&"column"in t&&e.line>0&&e.column>=0&&t.line>0&&t.column>=0&&n))throw new Error("Invalid mapping: "+JSON.stringify({generated:e,source:n,original:t,name:r}))},r.prototype._serializeMappings=function(){for(var e,t,n,r,o=0,a=1,u=0,c=0,l=0,p=0,h="",f=this._mappings.toArray(),d=0,y=f.length;d<y;d++){if(t=f[d],e="",t.generatedLine!==a)for(o=0;t.generatedLine!==a;)e+=";",a++;else if(d>0){if(!s.compareByGeneratedPositionsInflated(t,f[d-1]))continue;e+=","}e+=i.encode(t.generatedColumn-o),o=t.generatedColumn,null!=t.source&&(r=this._sources.indexOf(t.source),e+=i.encode(r-p),p=r,e+=i.encode(t.originalLine-1-c),c=t.originalLine-1,e+=i.encode(t.originalColumn-u),u=t.originalColumn,null!=t.name&&(n=this._names.indexOf(t.name),e+=i.encode(n-l),l=n)),h+=e}return h},r.prototype._generateSourcesContent=function(e,t){return e.map(function(e){if(!this._sourcesContents)return null;null!=t&&(e=s.relative(t,e));var n=s.toSetString(e);return Object.prototype.hasOwnProperty.call(this._sourcesContents,n)?this._sourcesContents[n]:null},this)},r.prototype.toJSON=function(){var e={version:this._version,sources:this._sources.toArray(),names:this._names.toArray(),mappings:this._serializeMappings()};return null!=this._file&&(e.file=this._file),null!=this._sourceRoot&&(e.sourceRoot=this._sourceRoot),this._sourcesContents&&(e.sourcesContent=this._generateSourcesContent(e.sources,e.sourceRoot)),e},r.prototype.toString=function(){return JSON.stringify(this.toJSON())},n.SourceMapGenerator=r},{"./array-set":27,"./base64-vlq":28,"./mapping-list":31,"./util":36}],35:[function(e,t,n){function r(e,t,n,r,i){this.children=[],this.sourceContents={},this.line=null==e?null:e,this.column=null==t?null:t,this.source=null==n?null:n,this.name=null==i?null:i,this[a]=!0,null!=r&&this.add(r)}var i=e("./source-map-generator").SourceMapGenerator,s=e("./util"),o=/(\r?\n)/,a="$$$isSourceNode$$$";r.fromStringWithSourceMap=function(e,t,n){function i(e,t){if(null===e||void 0===e.source)a.add(t);else{var i=n?s.join(n,e.source):e.source;a.add(new r(e.originalLine,e.originalColumn,i,t,e.name))}}var a=new r,u=e.split(o),c=function(){return u.shift()+(u.shift()||"")},l=1,p=0,h=null;return t.eachMapping(function(e){if(null!==h){if(!(l<e.generatedLine)){var t=u[0],n=t.substr(0,e.generatedColumn-p)
8 ;return u[0]=t.substr(e.generatedColumn-p),p=e.generatedColumn,i(h,n),void(h=e)}i(h,c()),l++,p=0}for(;l<e.generatedLine;)a.add(c()),l++;if(p<e.generatedColumn){var t=u[0];a.add(t.substr(0,e.generatedColumn)),u[0]=t.substr(e.generatedColumn),p=e.generatedColumn}h=e},this),u.length>0&&(h&&i(h,c()),a.add(u.join(""))),t.sources.forEach(function(e){var r=t.sourceContentFor(e);null!=r&&(null!=n&&(e=s.join(n,e)),a.setSourceContent(e,r))}),a},r.prototype.add=function(e){if(Array.isArray(e))e.forEach(function(e){this.add(e)},this);else{if(!e[a]&&"string"!=typeof e)throw new TypeError("Expected a SourceNode, string, or an array of SourceNodes and strings. Got "+e);e&&this.children.push(e)}return this},r.prototype.prepend=function(e){if(Array.isArray(e))for(var t=e.length-1;t>=0;t--)this.prepend(e[t]);else{if(!e[a]&&"string"!=typeof e)throw new TypeError("Expected a SourceNode, string, or an array of SourceNodes and strings. Got "+e);this.children.unshift(e)}return this},r.prototype.walk=function(e){for(var t,n=0,r=this.children.length;n<r;n++)t=this.children[n],t[a]?t.walk(e):""!==t&&e(t,{source:this.source,line:this.line,column:this.column,name:this.name})},r.prototype.join=function(e){var t,n,r=this.children.length;if(r>0){for(t=[],n=0;n<r-1;n++)t.push(this.children[n]),t.push(e);t.push(this.children[n]),this.children=t}return this},r.prototype.replaceRight=function(e,t){var n=this.children[this.children.length-1];return n[a]?n.replaceRight(e,t):"string"==typeof n?this.children[this.children.length-1]=n.replace(e,t):this.children.push("".replace(e,t)),this},r.prototype.setSourceContent=function(e,t){this.sourceContents[s.toSetString(e)]=t},r.prototype.walkSourceContents=function(e){for(var t=0,n=this.children.length;t<n;t++)this.children[t][a]&&this.children[t].walkSourceContents(e);for(var r=Object.keys(this.sourceContents),t=0,n=r.length;t<n;t++)e(s.fromSetString(r[t]),this.sourceContents[r[t]])},r.prototype.toString=function(){var e="";return this.walk(function(t){e+=t}),e},r.prototype.toStringWithSourceMap=function(e){var t={code:"",line:1,column:0},n=new i(e),r=!1,s=null,o=null,a=null,u=null;return this.walk(function(e,i){t.code+=e,null!==i.source&&null!==i.line&&null!==i.column?(s===i.source&&o===i.line&&a===i.column&&u===i.name||n.addMapping({source:i.source,original:{line:i.line,column:i.column},generated:{line:t.line,column:t.column},name:i.name}),s=i.source,o=i.line,a=i.column,u=i.name,r=!0):r&&(n.addMapping({generated:{line:t.line,column:t.column}}),s=null,r=!1);for(var c=0,l=e.length;c<l;c++)10===e.charCodeAt(c)?(t.line++,t.column=0,c+1===l?(s=null,r=!1):r&&n.addMapping({source:i.source,original:{line:i.line,column:i.column},generated:{line:t.line,column:t.column},name:i.name})):t.column++}),this.walkSourceContents(function(e,t){n.setSourceContent(e,t)}),{code:t.code,map:n}},n.SourceNode=r},{"./source-map-generator":34,"./util":36}],36:[function(e,t,n){function r(e,t,n){if(t in e)return e[t];if(3===arguments.length)return n;throw new Error('"'+t+'" is a required argument.')}function i(e){var t=e.match(g);return t?{scheme:t[1],auth:t[2],host:t[3],port:t[4],path:t[5]}:null}function s(e){var t="";return e.scheme&&(t+=e.scheme+":"),t+="//",e.auth&&(t+=e.auth+"@"),e.host&&(t+=e.host),e.port&&(t+=":"+e.port),e.path&&(t+=e.path),t}function o(e){var t=e,r=i(e);if(r){if(!r.path)return e;t=r.path}for(var o,a=n.isAbsolute(t),u=t.split(/\/+/),c=0,l=u.length-1;l>=0;l--)o=u[l],"."===o?u.splice(l,1):".."===o?c++:c>0&&(""===o?(u.splice(l+1,c),c=0):(u.splice(l,2),c--));return t=u.join("/"),""===t&&(t=a?"/":"."),r?(r.path=t,s(r)):t}function a(e,t){""===e&&(e="."),""===t&&(t=".");var n=i(t),r=i(e);if(r&&(e=r.path||"/"),n&&!n.scheme)return r&&(n.scheme=r.scheme),s(n);if(n||t.match(v))return t;if(r&&!r.host&&!r.path)return r.host=t,s(r);var a="/"===t.charAt(0)?t:o(e.replace(/\/+$/,"")+"/"+t);return r?(r.path=a,s(r)):a}function u(e,t){""===e&&(e="."),e=e.replace(/\/$/,"");for(var n=0;0!==t.indexOf(e+"/");){var r=e.lastIndexOf("/");if(r<0)return t;if(e=e.slice(0,r),e.match(/^([^\/]+:\/)?\/*$/))return t;++n}return Array(n+1).join("../")+t.substr(e.length+1)}function c(e){return e}function l(e){return h(e)?"$"+e:e}function p(e){return h(e)?e.slice(1):e}function h(e){if(!e)return!1;var 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projects / yaffs-website / blob