diff --git a/dist/sval.es6.js b/dist/sval.es6.js
index 20bb99e..2b7c12d 100644
--- a/dist/sval.es6.js
+++ b/dist/sval.es6.js
@@ -13,6 +13,8 @@
     get ReturnStatement () { return ReturnStatement$1; },
     get BreakStatement () { return BreakStatement$1; },
     get ContinueStatement () { return ContinueStatement$1; },
+    get LabeledStatement () { return LabeledStatement$1; },
+    get WithStatement () { return WithStatement$1; },
     get IfStatement () { return IfStatement$1; },
     get SwitchStatement () { return SwitchStatement$1; },
     get SwitchCase () { return SwitchCase$1; },
@@ -49,6 +51,8 @@
     get ReturnStatement () { return ReturnStatement; },
     get BreakStatement () { return BreakStatement; },
     get ContinueStatement () { return ContinueStatement; },
+    get LabeledStatement () { return LabeledStatement; },
+    get WithStatement () { return WithStatement; },
     get IfStatement () { return IfStatement; },
     get SwitchStatement () { return SwitchStatement; },
     get SwitchCase () { return SwitchCase; },
@@ -395,6 +399,10 @@
               globalObj.crypto = crypto;
           }
           catch (err) { }
+          try {
+              globalObj.URL = URL;
+          }
+          catch (err) { }
           names = getOwnNames(globalObj);
       }
   }
@@ -443,8 +451,8 @@
 
   const AWAIT = { RES: undefined };
   const RETURN = { RES: undefined };
-  const CONTINUE = createSymbol('continue');
-  const BREAK = createSymbol('break');
+  const CONTINUE = { LABEL: undefined };
+  const BREAK = { LABEL: undefined };
   const SUPER = createSymbol('super');
   const SUPERCALL = createSymbol('supercall');
   const NOCTOR = createSymbol('noctor');
@@ -456,7 +464,7 @@
   const IMPORT = createSymbol('import');
   const EXPORTS = createSymbol('exports');
 
-  var version = "0.5.3";
+  var version = "0.5.4";
 
   class Var {
       constructor(kind, value) {
@@ -495,6 +503,7 @@
   class Scope {
       constructor(parent = null, isolated = false) {
           this.context = create(null);
+          this.withContext = create(null);
           this.parent = parent;
           this.isolated = isolated;
       }
@@ -505,18 +514,13 @@
           }
           return scope;
       }
-      clone() {
-          const cloneScope = new Scope(this.parent, this.isolated);
-          for (const name in this.context) {
-              const variable = this.context[name];
-              cloneScope[variable.kind](name, variable.get());
-          }
-          return cloneScope;
-      }
       find(name) {
           if (this.context[name]) {
               return this.context[name];
           }
+          else if (name in this.withContext) {
+              return new Prop(this.withContext, name);
+          }
           else if (this.parent) {
               return this.parent.find(name);
           }
@@ -583,6 +587,11 @@
               throw new SyntaxError(`Identifier '${name}' has already been declared`);
           }
       }
+      with(value) {
+          if (Object.keys(value)) {
+              this.withContext = value;
+          }
+      }
   }
 
   function Identifier$1(node, scope, options = {}) {
@@ -1382,7 +1391,13 @@
       }
       for (let i = 0; i < block.body.length; i++) {
           const result = evaluate$1(block.body[i], subScope);
-          if (result === BREAK || result === CONTINUE || result === RETURN) {
+          if (result === BREAK) {
+              if (result.LABEL && result.LABEL === options.label) {
+                  break;
+              }
+              return result;
+          }
+          if (result === CONTINUE || result === RETURN) {
               return result;
           }
       }
@@ -1396,21 +1411,79 @@
       RETURN.RES = node.argument ? (evaluate$1(node.argument, scope)) : undefined;
       return RETURN;
   }
-  function BreakStatement$1() {
+  function BreakStatement$1(node) {
+      var _a;
+      BREAK.LABEL = (_a = node.label) === null || _a === void 0 ? void 0 : _a.name;
       return BREAK;
   }
-  function ContinueStatement$1() {
+  function ContinueStatement$1(node) {
+      var _a;
+      CONTINUE.LABEL = (_a = node.label) === null || _a === void 0 ? void 0 : _a.name;
       return CONTINUE;
   }
-  function IfStatement$1(node, scope) {
-      if (evaluate$1(node.test, scope)) {
-          return evaluate$1(node.consequent, scope);
+  function LabeledStatement$1(node, scope) {
+      const label = node.label.name;
+      if (node.body.type === 'WhileStatement') {
+          return WhileStatement$1(node.body, scope, { label });
       }
-      else {
-          return evaluate$1(node.alternate, scope);
+      if (node.body.type === 'DoWhileStatement') {
+          return DoWhileStatement$1(node.body, scope, { label });
+      }
+      if (node.body.type === 'ForStatement') {
+          return ForStatement$1(node.body, scope, { label });
+      }
+      if (node.body.type === 'ForInStatement') {
+          return ForInStatement$1(node.body, scope, { label });
+      }
+      if (node.body.type === 'ForOfStatement') {
+          return ForOfStatement$1(node.body, scope, { label });
+      }
+      if (node.body.type === 'BlockStatement') {
+          return BlockStatement$1(node.body, scope, { label });
+      }
+      if (node.body.type === 'WithStatement') {
+          return WithStatement$1(node.body, scope, { label });
+      }
+      if (node.body.type === 'IfStatement') {
+          return IfStatement$1(node.body, scope, { label });
+      }
+      if (node.body.type === 'SwitchStatement') {
+          return SwitchStatement$1(node.body, scope, { label });
+      }
+      if (node.body.type === 'TryStatement') {
+          return TryStatement$1(node.body, scope, { label });
+      }
+      throw new SyntaxError(`${node.body.type} cannot be labeled`);
+  }
+  function WithStatement$1(node, scope, options = {}) {
+      const withScope = new Scope(scope);
+      withScope.with(evaluate$1(node.object, scope));
+      const result = evaluate$1(node.body, withScope);
+      if (result === BREAK) {
+          if (result.LABEL && result.LABEL === options.label) {
+              return;
+          }
+          return result;
+      }
+      if (result === CONTINUE || result === RETURN) {
+          return result;
       }
   }
-  function SwitchStatement$1(node, scope) {
+  function IfStatement$1(node, scope, options = {}) {
+      const result = evaluate$1(node.test, scope)
+          ? evaluate$1(node.consequent, scope)
+          : evaluate$1(node.alternate, scope);
+      if (result === BREAK) {
+          if (result.LABEL && result.LABEL === options.label) {
+              return;
+          }
+          return result;
+      }
+      if (result === CONTINUE || result === RETURN) {
+          return result;
+      }
+  }
+  function SwitchStatement$1(node, scope, options = {}) {
       const discriminant = evaluate$1(node.discriminant, scope);
       let matched = false;
       for (let i = 0; i < node.cases.length; i++) {
@@ -1423,7 +1496,10 @@
           if (matched) {
               const result = SwitchCase$1(eachCase, scope);
               if (result === BREAK) {
-                  break;
+                  if (result.LABEL === options.label) {
+                      break;
+                  }
+                  return result;
               }
               if (result === CONTINUE || result === RETURN) {
                   return result;
@@ -1442,9 +1518,10 @@
   function ThrowStatement$1(node, scope) {
       throw evaluate$1(node.argument, scope);
   }
-  function TryStatement$1(node, scope) {
+  function TryStatement$1(node, scope, options = {}) {
+      let result;
       try {
-          return BlockStatement$1(node.block, scope);
+          result = BlockStatement$1(node.block, scope);
       }
       catch (err) {
           if (node.handler) {
@@ -1459,7 +1536,7 @@
                       pattern(param, scope, { feed: err });
                   }
               }
-              return CatchClause$1(node.handler, subScope);
+              result = CatchClause$1(node.handler, subScope);
           }
           else {
               throw err;
@@ -1467,45 +1544,63 @@
       }
       finally {
           if (node.finalizer) {
-              const result = BlockStatement$1(node.finalizer, scope);
-              if (result === BREAK || result === CONTINUE || result === RETURN) {
-                  return result;
-              }
+              result = BlockStatement$1(node.finalizer, scope);
           }
       }
+      if (result === BREAK) {
+          if (result.LABEL && result.LABEL === options.label) {
+              return;
+          }
+          return result;
+      }
+      if (result === CONTINUE || result === RETURN) {
+          return result;
+      }
   }
   function CatchClause$1(node, scope) {
       return BlockStatement$1(node.body, scope, { invasived: true });
   }
-  function WhileStatement$1(node, scope) {
+  function WhileStatement$1(node, scope, options = {}) {
       while (evaluate$1(node.test, scope)) {
           const result = evaluate$1(node.body, scope);
           if (result === BREAK) {
-              break;
+              if (result.LABEL === options.label) {
+                  break;
+              }
+              return result;
           }
           else if (result === CONTINUE) {
-              continue;
+              if (result.LABEL === options.label) {
+                  continue;
+              }
+              return result;
           }
           else if (result === RETURN) {
               return result;
           }
       }
   }
-  function DoWhileStatement$1(node, scope) {
+  function DoWhileStatement$1(node, scope, options = {}) {
       do {
           const result = evaluate$1(node.body, scope);
           if (result === BREAK) {
-              break;
+              if (result.LABEL === options.label) {
+                  break;
+              }
+              return result;
           }
           else if (result === CONTINUE) {
-              continue;
+              if (result.LABEL === options.label) {
+                  continue;
+              }
+              return result;
           }
           else if (result === RETURN) {
               return result;
           }
       } while (evaluate$1(node.test, scope));
   }
-  function ForStatement$1(node, scope) {
+  function ForStatement$1(node, scope, options = {}) {
       const forScope = new Scope(scope);
       for (evaluate$1(node.init, forScope); node.test ? (evaluate$1(node.test, forScope)) : true; evaluate$1(node.update, forScope)) {
           const subScope = new Scope(forScope);
@@ -1517,39 +1612,57 @@
               result = evaluate$1(node.body, subScope);
           }
           if (result === BREAK) {
-              break;
+              if (result.LABEL === options.label) {
+                  break;
+              }
+              return result;
           }
           else if (result === CONTINUE) {
-              continue;
+              if (result.LABEL === options.label) {
+                  continue;
+              }
+              return result;
           }
           else if (result === RETURN) {
               return result;
           }
       }
   }
-  function ForInStatement$1(node, scope) {
+  function ForInStatement$1(node, scope, options = {}) {
       for (const value in evaluate$1(node.right, scope)) {
           const result = ForXHandler(node, scope, { value });
           if (result === BREAK) {
-              break;
+              if (result.LABEL === options.label) {
+                  break;
+              }
+              return result;
           }
           else if (result === CONTINUE) {
-              continue;
+              if (result.LABEL === options.label) {
+                  continue;
+              }
+              return result;
           }
           else if (result === RETURN) {
               return result;
           }
       }
   }
-  function ForOfStatement$1(node, scope) {
+  function ForOfStatement$1(node, scope, options = {}) {
       const right = evaluate$1(node.right, scope);
       for (const value of right) {
           const result = ForXHandler(node, scope, { value });
           if (result === BREAK) {
-              break;
+              if (result.LABEL === options.label) {
+                  break;
+              }
+              return result;
           }
           else if (result === CONTINUE) {
-              continue;
+              if (result.LABEL === options.label) {
+                  continue;
+              }
+              return result;
           }
           else if (result === RETURN) {
               return result;
@@ -2660,7 +2773,13 @@
       }
       for (let i = 0; i < block.body.length; i++) {
           const result = yield* evaluate(block.body[i], subScope);
-          if (result === BREAK || result === CONTINUE || result === RETURN) {
+          if (result === BREAK) {
+              if (result.LABEL && result.LABEL === options.label) {
+                  break;
+              }
+              return result;
+          }
+          if (result === CONTINUE || result === RETURN) {
               return result;
           }
       }
@@ -2674,21 +2793,79 @@
       RETURN.RES = node.argument ? (yield* evaluate(node.argument, scope)) : undefined;
       return RETURN;
   }
-  function* BreakStatement() {
+  function* BreakStatement(node) {
+      var _a;
+      BREAK.LABEL = (_a = node.label) === null || _a === void 0 ? void 0 : _a.name;
       return BREAK;
   }
-  function* ContinueStatement() {
+  function* ContinueStatement(node) {
+      var _a;
+      CONTINUE.LABEL = (_a = node.label) === null || _a === void 0 ? void 0 : _a.name;
       return CONTINUE;
   }
-  function* IfStatement(node, scope) {
-      if (yield* evaluate(node.test, scope)) {
-          return yield* evaluate(node.consequent, scope);
+  function* LabeledStatement(node, scope) {
+      const label = node.label.name;
+      if (node.body.type === 'WhileStatement') {
+          return yield* WhileStatement(node.body, scope, { label });
       }
-      else {
-          return yield* evaluate(node.alternate, scope);
+      if (node.body.type === 'DoWhileStatement') {
+          return yield* DoWhileStatement(node.body, scope, { label });
+      }
+      if (node.body.type === 'ForStatement') {
+          return yield* ForStatement(node.body, scope, { label });
+      }
+      if (node.body.type === 'ForInStatement') {
+          return yield* ForInStatement(node.body, scope, { label });
+      }
+      if (node.body.type === 'ForOfStatement') {
+          return yield* ForOfStatement(node.body, scope, { label });
+      }
+      if (node.body.type === 'BlockStatement') {
+          return yield* BlockStatement(node.body, scope, { label });
+      }
+      if (node.body.type === 'WithStatement') {
+          return yield* WithStatement(node.body, scope, { label });
+      }
+      if (node.body.type === 'IfStatement') {
+          return yield* IfStatement(node.body, scope, { label });
+      }
+      if (node.body.type === 'SwitchStatement') {
+          return yield* SwitchStatement(node.body, scope, { label });
+      }
+      if (node.body.type === 'TryStatement') {
+          return yield* TryStatement(node.body, scope, { label });
+      }
+      throw new SyntaxError(`${node.body.type} cannot be labeled`);
+  }
+  function* WithStatement(node, scope, options = {}) {
+      const withScope = new Scope(scope);
+      withScope.with(yield* evaluate(node.object, scope));
+      const result = yield* evaluate(node.body, withScope);
+      if (result === BREAK) {
+          if (result.LABEL && result.LABEL === options.label) {
+              return;
+          }
+          return result;
+      }
+      if (result === CONTINUE || result === RETURN) {
+          return result;
+      }
+  }
+  function* IfStatement(node, scope, options = {}) {
+      const result = yield* evaluate(node.test, scope)
+          ? yield* evaluate(node.consequent, scope)
+          : yield* evaluate(node.alternate, scope);
+      if (result === BREAK) {
+          if (result.LABEL && result.LABEL === options.label) {
+              return;
+          }
+          return result;
+      }
+      if (result === CONTINUE || result === RETURN) {
+          return result;
       }
   }
-  function* SwitchStatement(node, scope) {
+  function* SwitchStatement(node, scope, options = {}) {
       const discriminant = yield* evaluate(node.discriminant, scope);
       let matched = false;
       for (let i = 0; i < node.cases.length; i++) {
@@ -2701,7 +2878,10 @@
           if (matched) {
               const result = yield* SwitchCase(eachCase, scope);
               if (result === BREAK) {
-                  break;
+                  if (result.LABEL === options.label) {
+                      break;
+                  }
+                  return result;
               }
               if (result === CONTINUE || result === RETURN) {
                   return result;
@@ -2720,9 +2900,10 @@
   function* ThrowStatement(node, scope) {
       throw yield* evaluate(node.argument, scope);
   }
-  function* TryStatement(node, scope) {
+  function* TryStatement(node, scope, options = {}) {
+      let result;
       try {
-          return yield* BlockStatement(node.block, scope);
+          result = yield* BlockStatement(node.block, scope);
       }
       catch (err) {
           if (node.handler) {
@@ -2737,7 +2918,7 @@
                       yield* pattern$1(param, scope, { feed: err });
                   }
               }
-              return yield* CatchClause(node.handler, subScope);
+              result = yield* CatchClause(node.handler, subScope);
           }
           else {
               throw err;
@@ -2745,45 +2926,63 @@
       }
       finally {
           if (node.finalizer) {
-              const result = yield* BlockStatement(node.finalizer, scope);
-              if (result === BREAK || result === CONTINUE || result === RETURN) {
-                  return result;
-              }
+              result = yield* BlockStatement(node.finalizer, scope);
           }
       }
+      if (result === BREAK) {
+          if (result.LABEL && result.LABEL === options.label) {
+              return;
+          }
+          return result;
+      }
+      if (result === CONTINUE || result === RETURN) {
+          return result;
+      }
   }
   function* CatchClause(node, scope) {
       return yield* BlockStatement(node.body, scope, { invasived: true });
   }
-  function* WhileStatement(node, scope) {
+  function* WhileStatement(node, scope, options = {}) {
       while (yield* evaluate(node.test, scope)) {
           const result = yield* evaluate(node.body, scope);
           if (result === BREAK) {
-              break;
+              if (result.LABEL === options.label) {
+                  break;
+              }
+              return result;
           }
           else if (result === CONTINUE) {
-              continue;
+              if (result.LABEL === options.label) {
+                  continue;
+              }
+              return result;
           }
           else if (result === RETURN) {
               return result;
           }
       }
   }
-  function* DoWhileStatement(node, scope) {
+  function* DoWhileStatement(node, scope, options = {}) {
       do {
           const result = yield* evaluate(node.body, scope);
           if (result === BREAK) {
-              break;
+              if (result.LABEL === options.label) {
+                  break;
+              }
+              return result;
           }
           else if (result === CONTINUE) {
-              continue;
+              if (result.LABEL === options.label) {
+                  continue;
+              }
+              return result;
           }
           else if (result === RETURN) {
               return result;
           }
       } while (yield* evaluate(node.test, scope));
   }
-  function* ForStatement(node, scope) {
+  function* ForStatement(node, scope, options = {}) {
       const forScope = new Scope(scope);
       for (yield* evaluate(node.init, forScope); node.test ? (yield* evaluate(node.test, forScope)) : true; yield* evaluate(node.update, forScope)) {
           const subScope = new Scope(forScope);
@@ -2795,31 +2994,43 @@
               result = yield* evaluate(node.body, subScope);
           }
           if (result === BREAK) {
-              break;
+              if (result.LABEL === options.label) {
+                  break;
+              }
+              return result;
           }
           else if (result === CONTINUE) {
-              continue;
+              if (result.LABEL === options.label) {
+                  continue;
+              }
+              return result;
           }
           else if (result === RETURN) {
               return result;
           }
       }
   }
-  function* ForInStatement(node, scope) {
+  function* ForInStatement(node, scope, options = {}) {
       for (const value in yield* evaluate(node.right, scope)) {
           const result = yield* ForXHandler$1(node, scope, { value });
           if (result === BREAK) {
-              break;
+              if (result.LABEL === options.label) {
+                  break;
+              }
+              return result;
           }
           else if (result === CONTINUE) {
-              continue;
+              if (result.LABEL === options.label) {
+                  continue;
+              }
+              return result;
           }
           else if (result === RETURN) {
               return result;
           }
       }
   }
-  function* ForOfStatement(node, scope) {
+  function* ForOfStatement(node, scope, options = {}) {
       const right = yield* evaluate(node.right, scope);
       if (node.await) {
           const iterator = getAsyncIterator(right);
@@ -2827,10 +3038,16 @@
           for (AWAIT.RES = iterator.next(), ret = yield AWAIT; !ret.done; AWAIT.RES = iterator.next(), ret = yield AWAIT) {
               const result = yield* ForXHandler$1(node, scope, { value: ret.value });
               if (result === BREAK) {
-                  break;
+                  if (result.LABEL === options.label) {
+                      break;
+                  }
+                  return result;
               }
               else if (result === CONTINUE) {
-                  continue;
+                  if (result.LABEL === options.label) {
+                      continue;
+                  }
+                  return result;
               }
               else if (result === RETURN) {
                   return result;
@@ -2841,10 +3058,16 @@
           for (const value of right) {
               const result = yield* ForXHandler$1(node, scope, { value });
               if (result === BREAK) {
-                  break;
+                  if (result.LABEL === options.label) {
+                      break;
+                  }
+                  return result;
               }
               else if (result === CONTINUE) {
-                  continue;
+                  if (result.LABEL === options.label) {
+                      continue;
+                  }
+                  return result;
               }
               else if (result === RETURN) {
                   return result;
@@ -3303,6 +3526,7 @@
       }
   }
   function createFunc$1(node, scope, options = {}) {
+      var _a;
       if (!node.generator && !node.async) {
           return createFunc(node, scope, options);
       }
@@ -3396,6 +3620,13 @@
           value: params.length,
           configurable: true
       });
+      const source = (_a = node.loc) === null || _a === void 0 ? void 0 : _a.source;
+      if (source) {
+          define(func, 'toString', {
+              value: () => source.substring(node.start, node.end),
+              configurable: true
+          });
+      }
       return func;
   }
   function* createClass$1(node, scope) {
@@ -3554,6 +3785,7 @@
       }
   }
   function createFunc(node, scope, options = {}) {
+      var _a;
       if (node.generator || node.async) {
           return createFunc$1(node, scope, options);
       }
@@ -3619,6 +3851,13 @@
           value: params.length,
           configurable: true
       });
+      const source = (_a = node.loc) === null || _a === void 0 ? void 0 : _a.source;
+      if (source) {
+          define(func, 'toString', {
+              value: () => source.substring(node.start, node.end),
+              configurable: true
+          });
+      }
       return func;
   }
   function createClass(node, scope) {
diff --git a/dist/sval.js b/dist/sval.js
index 68cc617..a321d89 100644
--- a/dist/sval.js
+++ b/dist/sval.js
@@ -13,6 +13,8 @@
     get ReturnStatement () { return ReturnStatement$1; },
     get BreakStatement () { return BreakStatement$1; },
     get ContinueStatement () { return ContinueStatement$1; },
+    get LabeledStatement () { return LabeledStatement$1; },
+    get WithStatement () { return WithStatement$1; },
     get IfStatement () { return IfStatement$1; },
     get SwitchStatement () { return SwitchStatement$1; },
     get SwitchCase () { return SwitchCase$1; },
@@ -49,6 +51,8 @@
     get ReturnStatement () { return ReturnStatement; },
     get BreakStatement () { return BreakStatement; },
     get ContinueStatement () { return ContinueStatement; },
+    get LabeledStatement () { return LabeledStatement; },
+    get WithStatement () { return WithStatement; },
     get IfStatement () { return IfStatement; },
     get SwitchStatement () { return SwitchStatement; },
     get SwitchCase () { return SwitchCase; },
@@ -395,6 +399,10 @@
               globalObj.crypto = crypto;
           }
           catch (err) { }
+          try {
+              globalObj.URL = URL;
+          }
+          catch (err) { }
           names = getOwnNames(globalObj);
       }
   }
@@ -444,8 +452,8 @@
 
   var AWAIT = { RES: undefined };
   var RETURN = { RES: undefined };
-  var CONTINUE = createSymbol('continue');
-  var BREAK = createSymbol('break');
+  var CONTINUE = { LABEL: undefined };
+  var BREAK = { LABEL: undefined };
   var SUPER = createSymbol('super');
   var SUPERCALL = createSymbol('supercall');
   var NOCTOR = createSymbol('noctor');
@@ -500,6 +508,7 @@
           if (parent === void 0) { parent = null; }
           if (isolated === void 0) { isolated = false; }
           this.context = create(null);
+          this.withContext = create(null);
           this.parent = parent;
           this.isolated = isolated;
       }
@@ -510,18 +519,13 @@
           }
           return scope;
       };
-      Scope.prototype.clone = function () {
-          var cloneScope = new Scope(this.parent, this.isolated);
-          for (var name_1 in this.context) {
-              var variable = this.context[name_1];
-              cloneScope[variable.kind](name_1, variable.get());
-          }
-          return cloneScope;
-      };
       Scope.prototype.find = function (name) {
           if (this.context[name]) {
               return this.context[name];
           }
+          else if (name in this.withContext) {
+              return new Prop(this.withContext, name);
+          }
           else if (this.parent) {
               return this.parent.find(name);
           }
@@ -588,6 +592,11 @@
               throw new SyntaxError("Identifier '" + name + "' has already been declared");
           }
       };
+      Scope.prototype.with = function (value) {
+          if (Object.keys(value)) {
+              this.withContext = value;
+          }
+      };
       return Scope;
   }());
 
@@ -1473,7 +1482,13 @@
       }
       for (var i = 0; i < block.body.length; i++) {
           var result = evaluate$1(block.body[i], subScope);
-          if (result === BREAK || result === CONTINUE || result === RETURN) {
+          if (result === BREAK) {
+              if (result.LABEL && result.LABEL === options.label) {
+                  break;
+              }
+              return result;
+          }
+          if (result === CONTINUE || result === RETURN) {
               return result;
           }
       }
@@ -1487,21 +1502,82 @@
       RETURN.RES = node.argument ? (evaluate$1(node.argument, scope)) : undefined;
       return RETURN;
   }
-  function BreakStatement$1() {
+  function BreakStatement$1(node) {
+      var _a;
+      BREAK.LABEL = (_a = node.label) === null || _a === void 0 ? void 0 : _a.name;
       return BREAK;
   }
-  function ContinueStatement$1() {
+  function ContinueStatement$1(node) {
+      var _a;
+      CONTINUE.LABEL = (_a = node.label) === null || _a === void 0 ? void 0 : _a.name;
       return CONTINUE;
   }
-  function IfStatement$1(node, scope) {
-      if (evaluate$1(node.test, scope)) {
-          return evaluate$1(node.consequent, scope);
+  function LabeledStatement$1(node, scope) {
+      var label = node.label.name;
+      if (node.body.type === 'WhileStatement') {
+          return WhileStatement$1(node.body, scope, { label: label });
       }
-      else {
-          return evaluate$1(node.alternate, scope);
+      if (node.body.type === 'DoWhileStatement') {
+          return DoWhileStatement$1(node.body, scope, { label: label });
+      }
+      if (node.body.type === 'ForStatement') {
+          return ForStatement$1(node.body, scope, { label: label });
+      }
+      if (node.body.type === 'ForInStatement') {
+          return ForInStatement$1(node.body, scope, { label: label });
+      }
+      if (node.body.type === 'ForOfStatement') {
+          return ForOfStatement$1(node.body, scope, { label: label });
+      }
+      if (node.body.type === 'BlockStatement') {
+          return BlockStatement$1(node.body, scope, { label: label });
       }
+      if (node.body.type === 'WithStatement') {
+          return WithStatement$1(node.body, scope, { label: label });
+      }
+      if (node.body.type === 'IfStatement') {
+          return IfStatement$1(node.body, scope, { label: label });
+      }
+      if (node.body.type === 'SwitchStatement') {
+          return SwitchStatement$1(node.body, scope, { label: label });
+      }
+      if (node.body.type === 'TryStatement') {
+          return TryStatement$1(node.body, scope, { label: label });
+      }
+      throw new SyntaxError(node.body.type + " cannot be labeled");
   }
-  function SwitchStatement$1(node, scope) {
+  function WithStatement$1(node, scope, options) {
+      if (options === void 0) { options = {}; }
+      var withScope = new Scope(scope);
+      withScope.with(evaluate$1(node.object, scope));
+      var result = evaluate$1(node.body, withScope);
+      if (result === BREAK) {
+          if (result.LABEL && result.LABEL === options.label) {
+              return;
+          }
+          return result;
+      }
+      if (result === CONTINUE || result === RETURN) {
+          return result;
+      }
+  }
+  function IfStatement$1(node, scope, options) {
+      if (options === void 0) { options = {}; }
+      var result = evaluate$1(node.test, scope)
+          ? evaluate$1(node.consequent, scope)
+          : evaluate$1(node.alternate, scope);
+      if (result === BREAK) {
+          if (result.LABEL && result.LABEL === options.label) {
+              return;
+          }
+          return result;
+      }
+      if (result === CONTINUE || result === RETURN) {
+          return result;
+      }
+  }
+  function SwitchStatement$1(node, scope, options) {
+      if (options === void 0) { options = {}; }
       var discriminant = evaluate$1(node.discriminant, scope);
       var matched = false;
       for (var i = 0; i < node.cases.length; i++) {
@@ -1514,7 +1590,10 @@
           if (matched) {
               var result = SwitchCase$1(eachCase, scope);
               if (result === BREAK) {
-                  break;
+                  if (result.LABEL === options.label) {
+                      break;
+                  }
+                  return result;
               }
               if (result === CONTINUE || result === RETURN) {
                   return result;
@@ -1533,9 +1612,11 @@
   function ThrowStatement$1(node, scope) {
       throw evaluate$1(node.argument, scope);
   }
-  function TryStatement$1(node, scope) {
+  function TryStatement$1(node, scope, options) {
+      if (options === void 0) { options = {}; }
+      var result;
       try {
-          return BlockStatement$1(node.block, scope);
+          result = BlockStatement$1(node.block, scope);
       }
       catch (err) {
           if (node.handler) {
@@ -1550,7 +1631,7 @@
                       pattern(param, scope, { feed: err });
                   }
               }
-              return CatchClause$1(node.handler, subScope);
+              result = CatchClause$1(node.handler, subScope);
           }
           else {
               throw err;
@@ -1558,45 +1639,66 @@
       }
       finally {
           if (node.finalizer) {
-              var result = BlockStatement$1(node.finalizer, scope);
-              if (result === BREAK || result === CONTINUE || result === RETURN) {
-                  return result;
-              }
+              result = BlockStatement$1(node.finalizer, scope);
           }
       }
+      if (result === BREAK) {
+          if (result.LABEL && result.LABEL === options.label) {
+              return;
+          }
+          return result;
+      }
+      if (result === CONTINUE || result === RETURN) {
+          return result;
+      }
   }
   function CatchClause$1(node, scope) {
       return BlockStatement$1(node.body, scope, { invasived: true });
   }
-  function WhileStatement$1(node, scope) {
+  function WhileStatement$1(node, scope, options) {
+      if (options === void 0) { options = {}; }
       while (evaluate$1(node.test, scope)) {
           var result = evaluate$1(node.body, scope);
           if (result === BREAK) {
-              break;
+              if (result.LABEL === options.label) {
+                  break;
+              }
+              return result;
           }
           else if (result === CONTINUE) {
-              continue;
+              if (result.LABEL === options.label) {
+                  continue;
+              }
+              return result;
           }
           else if (result === RETURN) {
               return result;
           }
       }
   }
-  function DoWhileStatement$1(node, scope) {
+  function DoWhileStatement$1(node, scope, options) {
+      if (options === void 0) { options = {}; }
       do {
           var result = evaluate$1(node.body, scope);
           if (result === BREAK) {
-              break;
+              if (result.LABEL === options.label) {
+                  break;
+              }
+              return result;
           }
           else if (result === CONTINUE) {
-              continue;
+              if (result.LABEL === options.label) {
+                  continue;
+              }
+              return result;
           }
           else if (result === RETURN) {
               return result;
           }
       } while (evaluate$1(node.test, scope));
   }
-  function ForStatement$1(node, scope) {
+  function ForStatement$1(node, scope, options) {
+      if (options === void 0) { options = {}; }
       var forScope = new Scope(scope);
       for (evaluate$1(node.init, forScope); node.test ? (evaluate$1(node.test, forScope)) : true; evaluate$1(node.update, forScope)) {
           var subScope = new Scope(forScope);
@@ -1608,42 +1710,62 @@
               result = evaluate$1(node.body, subScope);
           }
           if (result === BREAK) {
-              break;
+              if (result.LABEL === options.label) {
+                  break;
+              }
+              return result;
           }
           else if (result === CONTINUE) {
-              continue;
+              if (result.LABEL === options.label) {
+                  continue;
+              }
+              return result;
           }
           else if (result === RETURN) {
               return result;
           }
       }
   }
-  function ForInStatement$1(node, scope) {
+  function ForInStatement$1(node, scope, options) {
+      if (options === void 0) { options = {}; }
       for (var value in evaluate$1(node.right, scope)) {
           var result = ForXHandler(node, scope, { value: value });
           if (result === BREAK) {
-              break;
+              if (result.LABEL === options.label) {
+                  break;
+              }
+              return result;
           }
           else if (result === CONTINUE) {
-              continue;
+              if (result.LABEL === options.label) {
+                  continue;
+              }
+              return result;
           }
           else if (result === RETURN) {
               return result;
           }
       }
   }
-  function ForOfStatement$1(node, scope) {
+  function ForOfStatement$1(node, scope, options) {
       var e_1, _a;
+      if (options === void 0) { options = {}; }
       var right = evaluate$1(node.right, scope);
       try {
           for (var right_1 = __values(right), right_1_1 = right_1.next(); !right_1_1.done; right_1_1 = right_1.next()) {
               var value = right_1_1.value;
               var result = ForXHandler(node, scope, { value: value });
               if (result === BREAK) {
-                  break;
+                  if (result.LABEL === options.label) {
+                      break;
+                  }
+                  return result;
               }
               else if (result === CONTINUE) {
-                  continue;
+                  if (result.LABEL === options.label) {
+                      continue;
+                  }
+                  return result;
               }
               else if (result === RETURN) {
                   return result;
@@ -3171,7 +3293,13 @@
                   return [5, __values(evaluate(block.body[i], subScope))];
               case 4:
                   result = _c.sent();
-                  if (result === BREAK || result === CONTINUE || result === RETURN) {
+                  if (result === BREAK) {
+                      if (result.LABEL && result.LABEL === options.label) {
+                          return [3, 6];
+                      }
+                      return [2, result];
+                  }
+                  if (result === CONTINUE || result === RETURN) {
                       return [2, result];
                   }
                   _c.label = 5;
@@ -3213,31 +3341,130 @@
           }
       });
   }
-  function BreakStatement() {
-      return __generator(this, function (_a) {
+  function BreakStatement(node) {
+      var _a;
+      return __generator(this, function (_b) {
+          BREAK.LABEL = (_a = node.label) === null || _a === void 0 ? void 0 : _a.name;
           return [2, BREAK];
       });
   }
-  function ContinueStatement() {
-      return __generator(this, function (_a) {
+  function ContinueStatement(node) {
+      var _a;
+      return __generator(this, function (_b) {
+          CONTINUE.LABEL = (_a = node.label) === null || _a === void 0 ? void 0 : _a.name;
           return [2, CONTINUE];
       });
   }
-  function IfStatement(node, scope) {
+  function LabeledStatement(node, scope) {
+      var label;
       return __generator(this, function (_a) {
           switch (_a.label) {
-              case 0: return [5, __values(evaluate(node.test, scope))];
+              case 0:
+                  label = node.label.name;
+                  if (!(node.body.type === 'WhileStatement')) return [3, 2];
+                  return [5, __values(WhileStatement(node.body, scope, { label: label }))];
+              case 1: return [2, _a.sent()];
+              case 2:
+                  if (!(node.body.type === 'DoWhileStatement')) return [3, 4];
+                  return [5, __values(DoWhileStatement(node.body, scope, { label: label }))];
+              case 3: return [2, _a.sent()];
+              case 4:
+                  if (!(node.body.type === 'ForStatement')) return [3, 6];
+                  return [5, __values(ForStatement(node.body, scope, { label: label }))];
+              case 5: return [2, _a.sent()];
+              case 6:
+                  if (!(node.body.type === 'ForInStatement')) return [3, 8];
+                  return [5, __values(ForInStatement(node.body, scope, { label: label }))];
+              case 7: return [2, _a.sent()];
+              case 8:
+                  if (!(node.body.type === 'ForOfStatement')) return [3, 10];
+                  return [5, __values(ForOfStatement(node.body, scope, { label: label }))];
+              case 9: return [2, _a.sent()];
+              case 10:
+                  if (!(node.body.type === 'BlockStatement')) return [3, 12];
+                  return [5, __values(BlockStatement(node.body, scope, { label: label }))];
+              case 11: return [2, _a.sent()];
+              case 12:
+                  if (!(node.body.type === 'WithStatement')) return [3, 14];
+                  return [5, __values(WithStatement(node.body, scope, { label: label }))];
+              case 13: return [2, _a.sent()];
+              case 14:
+                  if (!(node.body.type === 'IfStatement')) return [3, 16];
+                  return [5, __values(IfStatement(node.body, scope, { label: label }))];
+              case 15: return [2, _a.sent()];
+              case 16:
+                  if (!(node.body.type === 'SwitchStatement')) return [3, 18];
+                  return [5, __values(SwitchStatement(node.body, scope, { label: label }))];
+              case 17: return [2, _a.sent()];
+              case 18:
+                  if (!(node.body.type === 'TryStatement')) return [3, 20];
+                  return [5, __values(TryStatement(node.body, scope, { label: label }))];
+              case 19: return [2, _a.sent()];
+              case 20: throw new SyntaxError(node.body.type + " cannot be labeled");
+          }
+      });
+  }
+  function WithStatement(node, scope, options) {
+      var withScope, _a, _b, result;
+      if (options === void 0) { options = {}; }
+      return __generator(this, function (_c) {
+          switch (_c.label) {
+              case 0:
+                  withScope = new Scope(scope);
+                  _b = (_a = withScope).with;
+                  return [5, __values(evaluate(node.object, scope))];
               case 1:
-                  if (!_a.sent()) return [3, 3];
+                  _b.apply(_a, [_c.sent()]);
+                  return [5, __values(evaluate(node.body, withScope))];
+              case 2:
+                  result = _c.sent();
+                  if (result === BREAK) {
+                      if (result.LABEL && result.LABEL === options.label) {
+                          return [2];
+                      }
+                      return [2, result];
+                  }
+                  if (result === CONTINUE || result === RETURN) {
+                      return [2, result];
+                  }
+                  return [2];
+          }
+      });
+  }
+  function IfStatement(node, scope, options) {
+      var result, _a;
+      if (options === void 0) { options = {}; }
+      return __generator(this, function (_b) {
+          switch (_b.label) {
+              case 0:
+                  if (!evaluate(node.test, scope)) return [3, 2];
                   return [5, __values(evaluate(node.consequent, scope))];
-              case 2: return [2, _a.sent()];
-              case 3: return [5, __values(evaluate(node.alternate, scope))];
-              case 4: return [2, _a.sent()];
+              case 1:
+                  _a = _b.sent();
+                  return [3, 4];
+              case 2: return [5, __values(evaluate(node.alternate, scope))];
+              case 3:
+                  _a = _b.sent();
+                  _b.label = 4;
+              case 4: return [5, __values(_a)];
+              case 5:
+                  result = _b.sent();
+                  if (result === BREAK) {
+                      if (result.LABEL && result.LABEL === options.label) {
+                          return [2];
+                      }
+                      return [2, result];
+                  }
+                  if (result === CONTINUE || result === RETURN) {
+                      return [2, result];
+                  }
+                  return [2];
           }
       });
   }
-  function SwitchStatement(node, scope) {
+  function SwitchStatement(node, scope, options) {
       var discriminant, matched, i, eachCase, _a, _b, result;
+      if (options === void 0) { options = {}; }
       return __generator(this, function (_c) {
           switch (_c.label) {
               case 0: return [5, __values(evaluate(node.discriminant, scope))];
@@ -3269,7 +3496,10 @@
               case 6:
                   result = _c.sent();
                   if (result === BREAK) {
-                      return [3, 8];
+                      if (result.LABEL === options.label) {
+                          return [3, 8];
+                      }
+                      return [2, result];
                   }
                   if (result === CONTINUE || result === RETURN) {
                       return [2, result];
@@ -3313,14 +3543,17 @@
           }
       });
   }
-  function TryStatement(node, scope) {
-      var err_1, subScope, param, name_1, result;
+  function TryStatement(node, scope, options) {
+      var result, err_1, subScope, param, name_1;
+      if (options === void 0) { options = {}; }
       return __generator(this, function (_a) {
           switch (_a.label) {
               case 0:
                   _a.trys.push([0, 2, 9, 12]);
                   return [5, __values(BlockStatement(node.block, scope))];
-              case 1: return [2, _a.sent()];
+              case 1:
+                  result = _a.sent();
+                  return [3, 12];
               case 2:
                   err_1 = _a.sent();
                   if (!node.handler) return [3, 7];
@@ -3336,7 +3569,9 @@
                   _a.sent();
                   _a.label = 5;
               case 5: return [5, __values(CatchClause(node.handler, subScope))];
-              case 6: return [2, _a.sent()];
+              case 6:
+                  result = _a.sent();
+                  return [3, 8];
               case 7: throw err_1;
               case 8: return [3, 12];
               case 9:
@@ -3344,12 +3579,19 @@
                   return [5, __values(BlockStatement(node.finalizer, scope))];
               case 10:
                   result = _a.sent();
-                  if (result === BREAK || result === CONTINUE || result === RETURN) {
-                      return [2, result];
-                  }
                   _a.label = 11;
               case 11: return [7];
-              case 12: return [2];
+              case 12:
+                  if (result === BREAK) {
+                      if (result.LABEL && result.LABEL === options.label) {
+                          return [2];
+                      }
+                      return [2, result];
+                  }
+                  if (result === CONTINUE || result === RETURN) {
+                      return [2, result];
+                  }
+                  return [2];
           }
       });
   }
@@ -3361,8 +3603,9 @@
           }
       });
   }
-  function WhileStatement(node, scope) {
+  function WhileStatement(node, scope, options) {
       var result;
+      if (options === void 0) { options = {}; }
       return __generator(this, function (_a) {
           switch (_a.label) {
               case 0: return [5, __values(evaluate(node.test, scope))];
@@ -3372,10 +3615,16 @@
               case 2:
                   result = _a.sent();
                   if (result === BREAK) {
-                      return [3, 3];
+                      if (result.LABEL === options.label) {
+                          return [3, 3];
+                      }
+                      return [2, result];
                   }
                   else if (result === CONTINUE) {
-                      return [3, 0];
+                      if (result.LABEL === options.label) {
+                          return [3, 0];
+                      }
+                      return [2, result];
                   }
                   else if (result === RETURN) {
                       return [2, result];
@@ -3385,18 +3634,25 @@
           }
       });
   }
-  function DoWhileStatement(node, scope) {
+  function DoWhileStatement(node, scope, options) {
       var result;
+      if (options === void 0) { options = {}; }
       return __generator(this, function (_a) {
           switch (_a.label) {
               case 0: return [5, __values(evaluate(node.body, scope))];
               case 1:
                   result = _a.sent();
                   if (result === BREAK) {
-                      return [3, 4];
+                      if (result.LABEL === options.label) {
+                          return [3, 4];
+                      }
+                      return [2, result];
                   }
                   else if (result === CONTINUE) {
-                      return [3, 2];
+                      if (result.LABEL === options.label) {
+                          return [3, 2];
+                      }
+                      return [2, result];
                   }
                   else if (result === RETURN) {
                       return [2, result];
@@ -3410,8 +3666,9 @@
           }
       });
   }
-  function ForStatement(node, scope) {
+  function ForStatement(node, scope, options) {
       var forScope, _a, subScope, result;
+      if (options === void 0) { options = {}; }
       return __generator(this, function (_b) {
           switch (_b.label) {
               case 0:
@@ -3444,10 +3701,16 @@
                   _b.label = 9;
               case 9:
                   if (result === BREAK) {
-                      return [3, 12];
+                      if (result.LABEL === options.label) {
+                          return [3, 12];
+                      }
+                      return [2, result];
                   }
                   else if (result === CONTINUE) {
-                      return [3, 10];
+                      if (result.LABEL === options.label) {
+                          return [3, 10];
+                      }
+                      return [2, result];
                   }
                   else if (result === RETURN) {
                       return [2, result];
@@ -3461,8 +3724,9 @@
           }
       });
   }
-  function ForInStatement(node, scope) {
+  function ForInStatement(node, scope, options) {
       var _a, _b, _i, value, result;
+      if (options === void 0) { options = {}; }
       return __generator(this, function (_c) {
           switch (_c.label) {
               case 0:
@@ -3480,10 +3744,16 @@
               case 3:
                   result = _c.sent();
                   if (result === BREAK) {
-                      return [3, 5];
+                      if (result.LABEL === options.label) {
+                          return [3, 5];
+                      }
+                      return [2, result];
                   }
                   else if (result === CONTINUE) {
-                      return [3, 4];
+                      if (result.LABEL === options.label) {
+                          return [3, 4];
+                      }
+                      return [2, result];
                   }
                   else if (result === RETURN) {
                       return [2, result];
@@ -3496,9 +3766,10 @@
           }
       });
   }
-  function ForOfStatement(node, scope) {
+  function ForOfStatement(node, scope, options) {
       var right, iterator, ret, result, right_1, right_1_1, value, result, e_1_1;
       var e_1, _a;
+      if (options === void 0) { options = {}; }
       return __generator(this, function (_b) {
           switch (_b.label) {
               case 0: return [5, __values(evaluate(node.right, scope))];
@@ -3518,10 +3789,16 @@
               case 4:
                   result = _b.sent();
                   if (result === BREAK) {
-                      return [3, 7];
+                      if (result.LABEL === options.label) {
+                          return [3, 7];
+                      }
+                      return [2, result];
                   }
                   else if (result === CONTINUE) {
-                      return [3, 5];
+                      if (result.LABEL === options.label) {
+                          return [3, 5];
+                      }
+                      return [2, result];
                   }
                   else if (result === RETURN) {
                       return [2, result];
@@ -3545,10 +3822,16 @@
               case 10:
                   result = _b.sent();
                   if (result === BREAK) {
-                      return [3, 12];
+                      if (result.LABEL === options.label) {
+                          return [3, 12];
+                      }
+                      return [2, result];
                   }
                   else if (result === CONTINUE) {
-                      return [3, 11];
+                      if (result.LABEL === options.label) {
+                          return [3, 11];
+                      }
+                      return [2, result];
                   }
                   else if (result === RETURN) {
                       return [2, result];
@@ -4261,15 +4544,16 @@
       });
   }
   function createFunc$1(node, scope, options) {
+      var _a;
       if (options === void 0) { options = {}; }
       if (!node.generator && !node.async) {
           return createFunc(node, scope, options);
       }
       var superClass = options.superClass, construct = options.construct;
       var params = node.params;
-      var tmpFunc = function _a() {
+      var tmpFunc = function _b() {
           var _i, subScope, i, param, result;
-          var _newTarget = this && this instanceof _a ? this.constructor : void 0;
+          var _newTarget = this && this instanceof _b ? this.constructor : void 0;
           var args = [];
           for (_i = 0; _i < arguments.length; _i++) {
               args[_i] = arguments[_i];
@@ -4388,6 +4672,13 @@
           value: params.length,
           configurable: true
       });
+      var source = (_a = node.loc) === null || _a === void 0 ? void 0 : _a.source;
+      if (source) {
+          define(func, 'toString', {
+              value: function () { return source.substring(node.start, node.end); },
+              configurable: true
+          });
+      }
       return func;
   }
   function createClass$1(node, scope) {
@@ -4593,14 +4884,15 @@
       }
   }
   function createFunc(node, scope, options) {
+      var _a;
       if (options === void 0) { options = {}; }
       if (node.generator || node.async) {
           return createFunc$1(node, scope, options);
       }
       var superClass = options.superClass, construct = options.construct;
       var params = node.params;
-      var tmpFunc = function _a() {
-          var _newTarget = this && this instanceof _a ? this.constructor : void 0;
+      var tmpFunc = function _b() {
+          var _newTarget = this && this instanceof _b ? this.constructor : void 0;
           var args = [];
           for (var _i = 0; _i < arguments.length; _i++) {
               args[_i] = arguments[_i];
@@ -4664,6 +4956,13 @@
           value: params.length,
           configurable: true
       });
+      var source = (_a = node.loc) === null || _a === void 0 ? void 0 : _a.source;
+      if (source) {
+          define(func, 'toString', {
+              value: function () { return source.substring(node.start, node.end); },
+              configurable: true
+          });
+      }
       return func;
   }
   function createClass(node, scope) {
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index 62ea8b4..d5b4c1b 100644
--- a/dist/sval.min.js
+++ b/dist/sval.min.js
@@ -1 +1 @@
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11<=this.options.ecmaVersion&&(this.eatContextual("as")?(e.exported=this.parseModuleExportName(),this.checkExport(t,e.exported,this.lastTokStart)):e.exported=null),this.expectContextual("from"),this.type!==y.string&&this.unexpected(),e.source=this.parseExprAtom(),this.semicolon(),this.finishNode(e,"ExportAllDeclaration")},e.parseExport=function(e,t){if(this.next(),this.eat(y.star))return this.parseExportAllDeclaration(e,t);if(this.eat(y._default))return 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s=e[n];s&&this.toAssignable(s,t)}return i&&(r=e[i-1],6===this.options.ecmaVersion)&&t&&r&&"RestElement"===r.type&&"Identifier"!==r.argument.type&&this.unexpected(r.argument.start),e},e.parseSpread=function(e){var t=this.startNode();return this.next(),t.argument=this.parseMaybeAssign(!1,e),this.finishNode(t,"SpreadElement")},e.parseRestBinding=function(){var e=this.startNode();return this.next(),6===this.options.ecmaVersion&&this.type!==y.name&&this.unexpected(),e.argument=this.parseBindingAtom(),this.finishNode(e,"RestElement")},e.parseBindingAtom=function(){if(6<=this.options.ecmaVersion)switch(this.type){case y.bracketL:var e=this.startNode();return this.next(),e.elements=this.parseBindingList(y.bracketR,!0,!0),this.finishNode(e,"ArrayPattern");case y.braceL:return this.parseObj(!0)}return this.parseIdent()},e.parseBindingList=function(e,t,r,i){for(var 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c=o[a];c&&this.checkLValInnerPattern(c,t,r)}break;default:this.checkLValSimple(e,t,r)}},{b_stat:new u("{",!(e.checkLValInnerPattern=function(e,t,r){switch(void 0===t&&(t=0),e.type){case"Property":this.checkLValInnerPattern(e.value,t,r);break;case"AssignmentPattern":this.checkLValPattern(e.left,t,r);break;case"RestElement":this.checkLValPattern(e.argument,t,r);break;default:this.checkLValPattern(e,t,r)}})),b_expr:new u("{",!0),b_tmpl:new u("${",!1),p_stat:new u("(",!1),p_expr:new u("(",!0),q_tmpl:new u("`",!0,!0,function(e){return e.tryReadTemplateToken()}),f_stat:new u("function",!1),f_expr:new u("function",!0),f_expr_gen:new u("function",!0,!1,null,!0),f_gen:new u("function",!1,!1,null,!0)}),e=h.prototype,e=(e.initialContext=function(){return[l.b_stat]},e.curContext=function(){return this.context[this.context.length-1]},e.braceIsBlock=function(e){var t=this.curContext();return t===l.f_expr||t===l.f_stat||(e!==y.colon||t!==l.b_stat&&t!==l.b_expr?e===y._return||e===y.name&&this.exprAllowed?o.test(this.input.slice(this.lastTokEnd,this.start)):e===y._else||e===y.semi||e===y.eof||e===y.parenR||e===y.arrow||(e===y.braceL?t===l.b_stat:e!==y._var&&e!==y._const&&e!==y.name&&!this.exprAllowed):!t.isExpr)},e.inGeneratorContext=function(){for(var e=this.context.length-1;1<=e;e--){var t=this.context[e];if("function"===t.token)return t.generator}return!1},e.updateContext=function(e){var t,r=this.type;r.keyword&&e===y.dot?this.exprAllowed=!1:(t=r.updateContext)?t.call(this,e):this.exprAllowed=r.beforeExpr},e.overrideContext=function(e){this.curContext()!==e&&(this.context[this.context.length-1]=e)},y.parenR.updateContext=y.braceR.updateContext=function(){var 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t=!1;6<=this.options.ecmaVersion&&e!==y.dot&&("of"===this.value&&!this.exprAllowed||"yield"===this.value&&this.inGeneratorContext())&&(t=!0),this.exprAllowed=t},h.prototype);e.checkPropClash=function(e,t,r){if(!(9<=this.options.ecmaVersion&&"SpreadElement"===e.type||6<=this.options.ecmaVersion&&(e.computed||e.method||e.shorthand))){var i=e.key;switch(i.type){case"Identifier":n=i.name;break;case"Literal":n=String(i.value);break;default:return}var n,e=e.kind;6<=this.options.ecmaVersion?"__proto__"===n&&"init"===e&&(t.proto&&(r?r.doubleProto<0&&(r.doubleProto=i.start):this.raiseRecoverable(i.start,"Redefinition of __proto__ property")),t.proto=!0):((r=t[n="$"+n])?("init"===e?this.strict&&r.init||r.get||r.set:r.init||r[e])&&this.raiseRecoverable(i.start,"Redefinition of property"):r=t[n]={init:!1,get:!1,set:!1},r[e]=!0)}},e.parseExpression=function(e,t){var r=this.start,i=this.startLoc,n=this.parseMaybeAssign(e,t);if(this.type!==y.comma)return n;var s=this.startNodeAt(r,i);for(s.expressions=[n];this.eat(y.comma);)s.expressions.push(this.parseMaybeAssign(e,t));return this.finishNode(s,"SequenceExpression")},e.parseMaybeAssign=function(e,t,r){if(this.isContextual("yield")){if(this.inGenerator)return this.parseYield(e);this.exprAllowed=!1}var i=!1,n=-1,s=-1,a=-1,o=(t?(n=t.parenthesizedAssign,s=t.trailingComma,a=t.doubleProto,t.parenthesizedAssign=t.trailingComma=-1):(t=new Ne,i=!0),this.start),c=this.startLoc,h=(this.type!==y.parenL&&this.type!==y.name||(this.potentialArrowAt=this.start,this.potentialArrowInForAwait="await"===e),this.parseMaybeConditional(e,t));return r&&(h=r.call(this,h,o,c)),this.type.isAssign?((r=this.startNodeAt(o,c)).operator=this.value,this.type===y.eq&&(h=this.toAssignable(h,!1,t)),i||(t.parenthesizedAssign=t.trailingComma=t.doubleProto=-1),t.shorthandAssign>=h.start&&(t.shorthandAssign=-1),this.type===y.eq?this.checkLValPattern(h):this.checkLValSimple(h),r.left=h,this.next(),r.right=this.parseMaybeAssign(e),-1<a&&(t.doubleProto=a),this.finishNode(r,"AssignmentExpression")):(i&&this.checkExpressionErrors(t,!0),-1<n&&(t.parenthesizedAssign=n),-1<s&&(t.trailingComma=s),h)},e.parseMaybeConditional=function(e,t){var r=this.start,i=this.startLoc,n=this.parseExprOps(e,t);return!this.checkExpressionErrors(t)&&this.eat(y.question)?((t=this.startNodeAt(r,i)).test=n,t.consequent=this.parseMaybeAssign(),this.expect(y.colon),t.alternate=this.parseMaybeAssign(e),this.finishNode(t,"ConditionalExpression")):n},e.parseExprOps=function(e,t){var r=this.start,i=this.startLoc,n=this.parseMaybeUnary(t,!1,!1,e);return this.checkExpressionErrors(t)||n.start===r&&"ArrowFunctionExpression"===n.type?n:this.parseExprOp(n,r,i,-1,e)},e.parseExprOp=function(e,t,r,i,n){var s,a,o,c,h,u=this.type.binop;if(null!=u&&(!n||this.type!==y._in)&&i<u)return s=this.type===y.logicalOR||this.type===y.logicalAND,(a=this.type===y.coalesce)&&(u=y.logicalAND.binop),o=this.value,this.next(),c=this.start,h=this.startLoc,c=this.parseExprOp(this.parseMaybeUnary(null,!1,!1,n),c,h,u,n),h=this.buildBinary(t,r,e,c,o,s||a),(s&&this.type===y.coalesce||a&&(this.type===y.logicalOR||this.type===y.logicalAND))&&this.raiseRecoverable(this.start,"Logical expressions and coalesce expressions cannot be mixed. Wrap either by parentheses"),this.parseExprOp(h,t,r,i,n);return e},e.buildBinary=function(e,t,r,i,n,s){"PrivateIdentifier"===i.type&&this.raise(i.start,"Private identifier can only be left side of binary expression");e=this.startNodeAt(e,t);return e.left=r,e.operator=n,e.right=i,this.finishNode(e,s?"LogicalExpression":"BinaryExpression")},e.parseMaybeUnary=function(e,t,r,i){var n,s=this.start,a=this.startLoc;if(this.isContextual("await")&&this.canAwait)n=this.parseAwait(i),t=!0;else if(this.type.prefix){var o=this.startNode(),c=this.type===y.incDec;o.operator=this.value,o.prefix=!0,this.next(),o.argument=this.parseMaybeUnary(null,!0,c,i),this.checkExpressionErrors(e,!0),c?this.checkLValSimple(o.argument):this.strict&&"delete"===o.operator&&"Identifier"===o.argument.type?this.raiseRecoverable(o.start,"Deleting local variable in strict mode"):"delete"===o.operator&&function e(t){return"MemberExpression"===t.type&&"PrivateIdentifier"===t.property.type||"ChainExpression"===t.type&&e(t.expression)}(o.argument)?this.raiseRecoverable(o.start,"Private fields can not be deleted"):t=!0,n=this.finishNode(o,c?"UpdateExpression":"UnaryExpression")}else if(t||this.type!==y.privateId){if(n=this.parseExprSubscripts(e,i),this.checkExpressionErrors(e))return n;for(;this.type.postfix&&!this.canInsertSemicolon();){var h=this.startNodeAt(s,a);h.operator=this.value,h.prefix=!1,h.argument=n,this.checkLValSimple(n),this.next(),n=this.finishNode(h,"UpdateExpression")}}else(i||0===this.privateNameStack.length)&&this.options.checkPrivateFields&&this.unexpected(),n=this.parsePrivateIdent(),this.type!==y._in&&this.unexpected();return r||!this.eat(y.starstar)?n:t?void this.unexpected(this.lastTokStart):this.buildBinary(s,a,n,this.parseMaybeUnary(null,!1,!1,i),"**",!1)},e.parseExprSubscripts=function(e,t){var r=this.start,i=this.startLoc,n=this.parseExprAtom(e,t);return"ArrowFunctionExpression"===n.type&&")"!==this.input.slice(this.lastTokStart,this.lastTokEnd)||(n=this.parseSubscripts(n,r,i,!1,t),e&&"MemberExpression"===n.type&&(e.parenthesizedAssign>=n.start&&(e.parenthesizedAssign=-1),e.parenthesizedBind>=n.start&&(e.parenthesizedBind=-1),e.trailingComma>=n.start)&&(e.trailingComma=-1)),n},e.parseSubscripts=function(e,t,r,i,n){for(var s=8<=this.options.ecmaVersion&&"Identifier"===e.type&&"async"===e.name&&this.lastTokEnd===e.end&&!this.canInsertSemicolon()&&e.end-e.start==5&&this.potentialArrowAt===e.start,a=!1;;){var o,c=this.parseSubscript(e,t,r,i,s,a,n);if(c.optional&&(a=!0),c===e||"ArrowFunctionExpression"===c.type)return a&&((o=this.startNodeAt(t,r)).expression=c,c=this.finishNode(o,"ChainExpression")),c;e=c}},e.shouldParseAsyncArrow=function(){return!this.canInsertSemicolon()&&this.eat(y.arrow)},e.parseSubscriptAsyncArrow=function(e,t,r,i){return this.parseArrowExpression(this.startNodeAt(e,t),r,!0,i)},e.parseSubscript=function(e,t,r,i,n,s,a){var o=11<=this.options.ecmaVersion,c=o&&this.eat(y.questionDot),h=(i&&c&&this.raise(this.lastTokStart,"Optional chaining cannot appear in the callee of new expressions"),this.eat(y.bracketL));if(h||c&&this.type!==y.parenL&&this.type!==y.backQuote||this.eat(y.dot)){var u=this.startNodeAt(t,r);u.object=e,h?(u.property=this.parseExpression(),this.expect(y.bracketR)):this.type===y.privateId&&"Super"!==e.type?u.property=this.parsePrivateIdent():u.property=this.parseIdent("never"!==this.options.allowReserved),u.computed=!!h,o&&(u.optional=c),e=this.finishNode(u,"MemberExpression")}else if(!i&&this.eat(y.parenL)){var h=new Ne,u=this.yieldPos,i=this.awaitPos,l=this.awaitIdentPos,p=(this.yieldPos=0,this.awaitPos=0,this.awaitIdentPos=0,this.parseExprList(y.parenR,8<=this.options.ecmaVersion,!1,h));if(n&&!c&&this.shouldParseAsyncArrow())return this.checkPatternErrors(h,!1),this.checkYieldAwaitInDefaultParams(),0<this.awaitIdentPos&&this.raise(this.awaitIdentPos,"Cannot use 'await' as identifier inside an async function"),this.yieldPos=u,this.awaitPos=i,this.awaitIdentPos=l,this.parseSubscriptAsyncArrow(t,r,p,a);this.checkExpressionErrors(h,!0),this.yieldPos=u||this.yieldPos,this.awaitPos=i||this.awaitPos,this.awaitIdentPos=l||this.awaitIdentPos;n=this.startNodeAt(t,r);n.callee=e,n.arguments=p,o&&(n.optional=c),e=this.finishNode(n,"CallExpression")}else this.type===y.backQuote&&((c||s)&&this.raise(this.start,"Optional chaining cannot appear in the tag of tagged template expressions"),(a=this.startNodeAt(t,r)).tag=e,a.quasi=this.parseTemplate({isTagged:!0}),e=this.finishNode(a,"TaggedTemplateExpression"));return e},e.parseExprAtom=function(e,t,r){this.type===y.slash&&this.readRegexp();var i=this.potentialArrowAt===this.start;switch(this.type){case y._super:return this.allowSuper||this.raise(this.start,"'super' keyword outside a method"),c=this.startNode(),this.next(),this.type!==y.parenL||this.allowDirectSuper||this.raise(c.start,"super() call outside constructor of a subclass"),this.type!==y.dot&&this.type!==y.bracketL&&this.type!==y.parenL&&this.unexpected(),this.finishNode(c,"Super");case y._this:return c=this.startNode(),this.next(),this.finishNode(c,"ThisExpression");case y.name:var n=this.start,s=this.startLoc,a=this.containsEsc,o=this.parseIdent(!1);if(8<=this.options.ecmaVersion&&!a&&"async"===o.name&&!this.canInsertSemicolon()&&this.eat(y._function))return this.overrideContext(l.f_expr),this.parseFunction(this.startNodeAt(n,s),0,!1,!0,t);if(i&&!this.canInsertSemicolon()){if(this.eat(y.arrow))return this.parseArrowExpression(this.startNodeAt(n,s),[o],!1,t);if(8<=this.options.ecmaVersion&&"async"===o.name&&this.type===y.name&&!a&&(!this.potentialArrowInForAwait||"of"!==this.value||this.containsEsc))return o=this.parseIdent(!1),!this.canInsertSemicolon()&&this.eat(y.arrow)||this.unexpected(),this.parseArrowExpression(this.startNodeAt(n,s),[o],!0,t)}return o;case y.regexp:var c,a=this.value;return(c=this.parseLiteral(a.value)).regex={pattern:a.pattern,flags:a.flags},c;case y.num:case y.string:return this.parseLiteral(this.value);case y._null:case y._true:case y._false:return(c=this.startNode()).value=this.type===y._null?null:this.type===y._true,c.raw=this.type.keyword,this.next(),this.finishNode(c,"Literal");case y.parenL:n=this.start,s=this.parseParenAndDistinguishExpression(i,t);return e&&(e.parenthesizedAssign<0&&!this.isSimpleAssignTarget(s)&&(e.parenthesizedAssign=n),e.parenthesizedBind<0)&&(e.parenthesizedBind=n),s;case y.bracketL:return c=this.startNode(),this.next(),c.elements=this.parseExprList(y.bracketR,!0,!0,e),this.finishNode(c,"ArrayExpression");case y.braceL:return this.overrideContext(l.b_expr),this.parseObj(!1,e);case y._function:return c=this.startNode(),this.next(),this.parseFunction(c,0);case y._class:return this.parseClass(this.startNode(),!1);case y._new:return this.parseNew();case y.backQuote:return this.parseTemplate();case y._import:return 11<=this.options.ecmaVersion?this.parseExprImport(r):this.unexpected();default:return this.parseExprAtomDefault()}},e.parseExprAtomDefault=function(){this.unexpected()},e.parseExprImport=function(e){var t=this.startNode();return this.containsEsc&&this.raiseRecoverable(this.start,"Escape sequence in keyword import"),this.next(),this.type!==y.parenL||e?this.type===y.dot?((e=this.startNodeAt(t.start,t.loc&&t.loc.start)).name="import",t.meta=this.finishNode(e,"Identifier"),this.parseImportMeta(t)):void this.unexpected():this.parseDynamicImport(t)},e.parseDynamicImport=function(e){var t;return this.next(),e.source=this.parseMaybeAssign(),this.eat(y.parenR)||(t=this.start,this.eat(y.comma)&&this.eat(y.parenR)?this.raiseRecoverable(t,"Trailing comma is not allowed in import()"):this.unexpected(t)),this.finishNode(e,"ImportExpression")},e.parseImportMeta=function(e){this.next();var t=this.containsEsc;return e.property=this.parseIdent(!0),"meta"!==e.property.name&&this.raiseRecoverable(e.property.start,"The only valid meta property for import is 'import.meta'"),t&&this.raiseRecoverable(e.start,"'import.meta' must not contain escaped characters"),"module"===this.options.sourceType||this.options.allowImportExportEverywhere||this.raiseRecoverable(e.start,"Cannot use 'import.meta' outside a module"),this.finishNode(e,"MetaProperty")},e.parseLiteral=function(e){var t=this.startNode();return t.value=e,t.raw=this.input.slice(this.start,this.end),110===t.raw.charCodeAt(t.raw.length-1)&&(t.bigint=t.raw.slice(0,-1).replace(/_/g,"")),this.next(),this.finishNode(t,"Literal")},e.parseParenExpression=function(){this.expect(y.parenL);var e=this.parseExpression();return this.expect(y.parenR),e},e.shouldParseArrow=function(e){return!this.canInsertSemicolon()},e.parseParenAndDistinguishExpression=function(e,t){var r,i=this.start,n=this.startLoc,s=8<=this.options.ecmaVersion;if(6<=this.options.ecmaVersion){this.next();var a,o=this.start,c=this.startLoc,h=[],u=!0,l=!1,p=new Ne,d=this.yieldPos,f=this.awaitPos;for(this.yieldPos=0,this.awaitPos=0;this.type!==y.parenR;){if(u?u=!1:this.expect(y.comma),s&&this.afterTrailingComma(y.parenR,!0)){l=!0;break}if(this.type===y.ellipsis){a=this.start,h.push(this.parseParenItem(this.parseRestBinding())),this.type===y.comma&&this.raiseRecoverable(this.start,"Comma is not permitted after the rest element");break}h.push(this.parseMaybeAssign(!1,p,this.parseParenItem))}var m=this.lastTokEnd,g=this.lastTokEndLoc;if(this.expect(y.parenR),e&&this.shouldParseArrow(h)&&this.eat(y.arrow))return this.checkPatternErrors(p,!1),this.checkYieldAwaitInDefaultParams(),this.yieldPos=d,this.awaitPos=f,this.parseParenArrowList(i,n,h,t);h.length&&!l||this.unexpected(this.lastTokStart),a&&this.unexpected(a),this.checkExpressionErrors(p,!0),this.yieldPos=d||this.yieldPos,this.awaitPos=f||this.awaitPos,1<h.length?((r=this.startNodeAt(o,c)).expressions=h,this.finishNodeAt(r,"SequenceExpression",m,g)):r=h[0]}else r=this.parseParenExpression();return this.options.preserveParens?((e=this.startNodeAt(i,n)).expression=r,this.finishNode(e,"ParenthesizedExpression")):r},e.parseParenItem=function(e){return e},e.parseParenArrowList=function(e,t,r,i){return this.parseArrowExpression(this.startNodeAt(e,t),r,!1,i)};function je(e){this.flags=e,this.var=[],this.lexical=[],this.functions=[],this.inClassFieldInit=!1}function Ue(e,t,r){this.type="",this.start=t,this.end=0,e.options.locations&&(this.loc=new Ee(e,r)),e.options.directSourceFile&&(this.sourceFile=e.options.directSourceFile),e.options.ranges&&(this.range=[t,0])}var qe=[],e=(e.parseNew=function(){this.containsEsc&&this.raiseRecoverable(this.start,"Escape sequence in keyword new");var e,t,r=this.startNode();return this.next(),6<=this.options.ecmaVersion&&this.type===y.dot?((e=this.startNodeAt(r.start,r.loc&&r.loc.start)).name="new",r.meta=this.finishNode(e,"Identifier"),this.next(),e=this.containsEsc,r.property=this.parseIdent(!0),"target"!==r.property.name&&this.raiseRecoverable(r.property.start,"The only valid meta property for new is 'new.target'"),e&&this.raiseRecoverable(r.start,"'new.target' must not contain escaped characters"),this.allowNewDotTarget||this.raiseRecoverable(r.start,"'new.target' can only be used in functions and class static block"),this.finishNode(r,"MetaProperty")):(e=this.start,t=this.startLoc,r.callee=this.parseSubscripts(this.parseExprAtom(null,!1,!0),e,t,!0,!1),this.eat(y.parenL)?r.arguments=this.parseExprList(y.parenR,8<=this.options.ecmaVersion,!1):r.arguments=qe,this.finishNode(r,"NewExpression"))},e.parseTemplateElement=function(e){var e=e.isTagged,t=this.startNode();return this.type===y.invalidTemplate?(e||this.raiseRecoverable(this.start,"Bad escape sequence in untagged template literal"),t.value={raw:this.value,cooked:null}):t.value={raw:this.input.slice(this.start,this.end).replace(/\r\n?/g,"\n"),cooked:this.value},this.next(),t.tail=this.type===y.backQuote,this.finishNode(t,"TemplateElement")},e.parseTemplate=function(e){var t=(e=void 0===e?{}:e).isTagged,r=(void 0===t&&(t=!1),this.startNode()),i=(this.next(),r.expressions=[],this.parseTemplateElement({isTagged:t}));for(r.quasis=[i];!i.tail;)this.type===y.eof&&this.raise(this.pos,"Unterminated template literal"),this.expect(y.dollarBraceL),r.expressions.push(this.parseExpression()),this.expect(y.braceR),r.quasis.push(i=this.parseTemplateElement({isTagged:t}));return this.next(),this.finishNode(r,"TemplateLiteral")},e.isAsyncProp=function(e){return!e.computed&&"Identifier"===e.key.type&&"async"===e.key.name&&(this.type===y.name||this.type===y.num||this.type===y.string||this.type===y.bracketL||this.type.keyword||9<=this.options.ecmaVersion&&this.type===y.star)&&!o.test(this.input.slice(this.lastTokEnd,this.start))},e.parseObj=function(e,t){var r=this.startNode(),i=!0,n={};for(r.properties=[],this.next();!this.eat(y.braceR);){if(i)i=!1;else if(this.expect(y.comma),5<=this.options.ecmaVersion&&this.afterTrailingComma(y.braceR))break;var s=this.parseProperty(e,t);e||this.checkPropClash(s,n,t),r.properties.push(s)}return this.finishNode(r,e?"ObjectPattern":"ObjectExpression")},e.parseProperty=function(e,t){var r,i,n,s,a=this.startNode();if(9<=this.options.ecmaVersion&&this.eat(y.ellipsis))return e?(a.argument=this.parseIdent(!1),this.type===y.comma&&this.raiseRecoverable(this.start,"Comma is not permitted after the rest element"),this.finishNode(a,"RestElement")):(a.argument=this.parseMaybeAssign(!1,t),this.type===y.comma&&t&&t.trailingComma<0&&(t.trailingComma=this.start),this.finishNode(a,"SpreadElement"));6<=this.options.ecmaVersion&&(a.method=!1,a.shorthand=!1,(e||t)&&(n=this.start,s=this.startLoc),e||(r=this.eat(y.star)));var o=this.containsEsc;return this.parsePropertyName(a),!e&&!o&&8<=this.options.ecmaVersion&&!r&&this.isAsyncProp(a)?(i=!0,r=9<=this.options.ecmaVersion&&this.eat(y.star),this.parsePropertyName(a)):i=!1,this.parsePropertyValue(a,e,r,i,n,s,t,o),this.finishNode(a,"Property")},e.parseGetterSetter=function(e){e.kind=e.key.name,this.parsePropertyName(e),e.value=this.parseMethod(!1);var t="get"===e.kind?0:1;e.value.params.length!==t?(t=e.value.start,"get"===e.kind?this.raiseRecoverable(t,"getter should have no params"):this.raiseRecoverable(t,"setter should have exactly one param")):"set"===e.kind&&"RestElement"===e.value.params[0].type&&this.raiseRecoverable(e.value.params[0].start,"Setter cannot use rest params")},e.parsePropertyValue=function(e,t,r,i,n,s,a,o){(r||i)&&this.type===y.colon&&this.unexpected(),this.eat(y.colon)?(e.value=t?this.parseMaybeDefault(this.start,this.startLoc):this.parseMaybeAssign(!1,a),e.kind="init"):6<=this.options.ecmaVersion&&this.type===y.parenL?(t&&this.unexpected(),e.kind="init",e.method=!0,e.value=this.parseMethod(r,i)):t||o||!(5<=this.options.ecmaVersion)||e.computed||"Identifier"!==e.key.type||"get"!==e.key.name&&"set"!==e.key.name||this.type===y.comma||this.type===y.braceR||this.type===y.eq?6<=this.options.ecmaVersion&&!e.computed&&"Identifier"===e.key.type?((r||i)&&this.unexpected(),this.checkUnreserved(e.key),"await"!==e.key.name||this.awaitIdentPos||(this.awaitIdentPos=n),e.kind="init",t?e.value=this.parseMaybeDefault(n,s,this.copyNode(e.key)):this.type===y.eq&&a?(a.shorthandAssign<0&&(a.shorthandAssign=this.start),e.value=this.parseMaybeDefault(n,s,this.copyNode(e.key))):e.value=this.copyNode(e.key),e.shorthand=!0):this.unexpected():((r||i)&&this.unexpected(),this.parseGetterSetter(e))},e.parsePropertyName=function(e){if(6<=this.options.ecmaVersion){if(this.eat(y.bracketL))return e.computed=!0,e.key=this.parseMaybeAssign(),this.expect(y.bracketR),e.key;e.computed=!1}return e.key=this.type===y.num||this.type===y.string?this.parseExprAtom():this.parseIdent("never"!==this.options.allowReserved)},e.initFunction=function(e){e.id=null,6<=this.options.ecmaVersion&&(e.generator=e.expression=!1),8<=this.options.ecmaVersion&&(e.async=!1)},e.parseMethod=function(e,t,r){var i=this.startNode(),n=this.yieldPos,s=this.awaitPos,a=this.awaitIdentPos;return this.initFunction(i),6<=this.options.ecmaVersion&&(i.generator=e),8<=this.options.ecmaVersion&&(i.async=!!t),this.yieldPos=0,this.awaitPos=0,this.awaitIdentPos=0,this.enterScope(64|Ve(t,i.generator)|(r?128:0)),this.expect(y.parenL),i.params=this.parseBindingList(y.parenR,!1,8<=this.options.ecmaVersion),this.checkYieldAwaitInDefaultParams(),this.parseFunctionBody(i,!1,!0,!1),this.yieldPos=n,this.awaitPos=s,this.awaitIdentPos=a,this.finishNode(i,"FunctionExpression")},e.parseArrowExpression=function(e,t,r,i){var n=this.yieldPos,s=this.awaitPos,a=this.awaitIdentPos;return this.enterScope(16|Ve(r,!1)),this.initFunction(e),8<=this.options.ecmaVersion&&(e.async=!!r),this.yieldPos=0,this.awaitPos=0,this.awaitIdentPos=0,e.params=this.toAssignableList(t,!0),this.parseFunctionBody(e,!0,!1,i),this.yieldPos=n,this.awaitPos=s,this.awaitIdentPos=a,this.finishNode(e,"ArrowFunctionExpression")},e.parseFunctionBody=function(e,t,r,i){var n=t&&this.type!==y.braceL,s=this.strict,a=!1;n?(e.body=this.parseMaybeAssign(i),e.expression=!0,this.checkParams(e,!1)):(n=7<=this.options.ecmaVersion&&!this.isSimpleParamList(e.params),s&&!n||(a=this.strictDirective(this.end))&&n&&this.raiseRecoverable(e.start,"Illegal 'use strict' directive in function with non-simple parameter list"),i=this.labels,this.labels=[],a&&(this.strict=!0),this.checkParams(e,!s&&!a&&!t&&!r&&this.isSimpleParamList(e.params)),this.strict&&e.id&&this.checkLValSimple(e.id,5),e.body=this.parseBlock(!1,void 0,a&&!s),e.expression=!1,this.adaptDirectivePrologue(e.body.body),this.labels=i),this.exitScope()},e.isSimpleParamList=function(e){for(var t=0,r=e;t<r.length;t+=1)if("Identifier"!==r[t].type)return!1;return!0},e.checkParams=function(e,t){for(var r=Object.create(null),i=0,n=e.params;i<n.length;i+=1){var s=n[i];this.checkLValInnerPattern(s,1,t?null:r)}},e.parseExprList=function(e,t,r,i){for(var n=[],s=!0;!this.eat(e);){if(s)s=!1;else if(this.expect(y.comma),t&&this.afterTrailingComma(e))break;var a=void 0;r&&this.type===y.comma?a=null:this.type===y.ellipsis?(a=this.parseSpread(i),i&&this.type===y.comma&&i.trailingComma<0&&(i.trailingComma=this.start)):a=this.parseMaybeAssign(!1,i),n.push(a)}return n},e.checkUnreserved=function(e){var t=e.start,r=e.end,e=e.name;this.inGenerator&&"yield"===e&&this.raiseRecoverable(t,"Cannot use 'yield' as identifier inside a generator"),this.inAsync&&"await"===e&&this.raiseRecoverable(t,"Cannot use 'await' as identifier inside an async function"),this.currentThisScope().inClassFieldInit&&"arguments"===e&&this.raiseRecoverable(t,"Cannot use 'arguments' in class field initializer"),!this.inClassStaticBlock||"arguments"!==e&&"await"!==e||this.raise(t,"Cannot use "+e+" in class static initialization block"),this.keywords.test(e)&&this.raise(t,"Unexpected keyword '"+e+"'"),this.options.ecmaVersion<6&&-1!==this.input.slice(t,r).indexOf("\\")||(this.strict?this.reservedWordsStrict:this.reservedWords).test(e)&&(this.inAsync||"await"!==e||this.raiseRecoverable(t,"Cannot use keyword 'await' outside an async function"),this.raiseRecoverable(t,"The keyword '"+e+"' is reserved"))},e.parseIdent=function(e){var t=this.parseIdentNode();return this.next(!!e),this.finishNode(t,"Identifier"),e||(this.checkUnreserved(t),"await"!==t.name)||this.awaitIdentPos||(this.awaitIdentPos=t.start),t},e.parseIdentNode=function(){var e=this.startNode();return this.type===y.name?e.name=this.value:this.type.keyword?(e.name=this.type.keyword,"class"!==e.name&&"function"!==e.name||this.lastTokEnd===this.lastTokStart+1&&46===this.input.charCodeAt(this.lastTokStart)||this.context.pop(),this.type=y.name):this.unexpected(),e},e.parsePrivateIdent=function(){var e=this.startNode();return this.type===y.privateId?e.name=this.value:this.unexpected(),this.next(),this.finishNode(e,"PrivateIdentifier"),this.options.checkPrivateFields&&(0===this.privateNameStack.length?this.raise(e.start,"Private field '#"+e.name+"' must be declared in an enclosing class"):this.privateNameStack[this.privateNameStack.length-1].used.push(e)),e},e.parseYield=function(e){this.yieldPos||(this.yieldPos=this.start);var t=this.startNode();return this.next(),this.type===y.semi||this.canInsertSemicolon()||this.type!==y.star&&!this.type.startsExpr?(t.delegate=!1,t.argument=null):(t.delegate=this.eat(y.star),t.argument=this.parseMaybeAssign(e)),this.finishNode(t,"YieldExpression")},e.parseAwait=function(e){this.awaitPos||(this.awaitPos=this.start);var t=this.startNode();return this.next(),t.argument=this.parseMaybeUnary(null,!0,!1,e),this.finishNode(t,"AwaitExpression")},h.prototype),e=(e.raise=function(e,t){var r=Ie(this.input,e),t=(t+=" ("+r.line+":"+r.column+")",new SyntaxError(t));throw t.pos=e,t.loc=r,t.raisedAt=this.pos,t},e.raiseRecoverable=e.raise,e.curPosition=function(){if(this.options.locations)return new _e(this.curLine,this.pos-this.lineStart)},h.prototype),e=(e.enterScope=function(e){this.scopeStack.push(new je(e))},e.exitScope=function(){this.scopeStack.pop()},e.treatFunctionsAsVarInScope=function(e){return 2&e.flags||!this.inModule&&1&e.flags},e.declareName=function(e,t,r){var i=!1;if(2===t){var 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e.advance(r),92===i&&this.regexp_eatRegExpUnicodeEscapeSequence(e,r)&&(i=e.lastIntValue),a(r=i,!0)||36===r||95===r?(e.lastIntValue=i,!0):(e.pos=t,!1)},e.regexp_eatRegExpIdentifierPart=function(e){var t=e.pos,r=11<=this.options.ecmaVersion,i=e.current(r);return e.advance(r),92===i&&this.regexp_eatRegExpUnicodeEscapeSequence(e,r)&&(i=e.lastIntValue),pe(r=i,!0)||36===r||95===r||8204===r||8205===r?(e.lastIntValue=i,!0):(e.pos=t,!1)},e.regexp_eatAtomEscape=function(e){return!!(this.regexp_eatBackReference(e)||this.regexp_eatCharacterClassEscape(e)||this.regexp_eatCharacterEscape(e)||e.switchN&&this.regexp_eatKGroupName(e))||(e.switchU&&(99===e.current()&&e.raise("Invalid unicode escape"),e.raise("Invalid escape")),!1)},e.regexp_eatBackReference=function(e){var t=e.pos;if(this.regexp_eatDecimalEscape(e)){var r=e.lastIntValue;if(e.switchU)return r>e.maxBackReference&&(e.maxBackReference=r),!0;if(r<=e.numCapturingParens)return!0;e.pos=t}return!1},e.regexp_eatKGroupName=function(e){if(e.eat(107)){if(this.regexp_eatGroupName(e))return e.backReferenceNames.push(e.lastStringValue),!0;e.raise("Invalid named reference")}return!1},e.regexp_eatCharacterEscape=function(e){return this.regexp_eatControlEscape(e)||this.regexp_eatCControlLetter(e)||this.regexp_eatZero(e)||this.regexp_eatHexEscapeSequence(e)||this.regexp_eatRegExpUnicodeEscapeSequence(e,!1)||!e.switchU&&this.regexp_eatLegacyOctalEscapeSequence(e)||this.regexp_eatIdentityEscape(e)},e.regexp_eatCControlLetter=function(e){var t=e.pos;if(e.eat(99)){if(this.regexp_eatControlLetter(e))return!0;e.pos=t}return!1},e.regexp_eatZero=function(e){return 48===e.current()&&!it(e.lookahead())&&(e.lastIntValue=0,e.advance(),!0)},e.regexp_eatControlEscape=function(e){var t=e.current();return 116===t?(e.lastIntValue=9,e.advance(),!0):110===t?(e.lastIntValue=10,e.advance(),!0):118===t?(e.lastIntValue=11,e.advance(),!0):102===t?(e.lastIntValue=12,e.advance(),!0):114===t&&(e.lastIntValue=13,e.advance(),!0)},e.regexp_eatControlLetter=function(e){var t=e.current();return!!tt(t)&&(e.lastIntValue=t%32,e.advance(),!0)},e.regexp_eatRegExpUnicodeEscapeSequence=function(e,t){var r=e.pos,t=(t=void 0===t?!1:t)||e.switchU;if(e.eat(117)){if(this.regexp_eatFixedHexDigits(e,4)){var i=e.lastIntValue;if(t&&55296<=i&&i<=56319){var n=e.pos;if(e.eat(92)&&e.eat(117)&&this.regexp_eatFixedHexDigits(e,4)){var s=e.lastIntValue;if(56320<=s&&s<=57343)return e.lastIntValue=1024*(i-55296)+(s-56320)+65536,!0}e.pos=n,e.lastIntValue=i}return!0}if(t&&e.eat(123)&&this.regexp_eatHexDigits(e)&&e.eat(125)&&0<=(s=e.lastIntValue)&&s<=1114111)return!0;t&&e.raise("Invalid unicode escape"),e.pos=r}return!1},e.regexp_eatIdentityEscape=function(e){var t;return e.switchU?!!this.regexp_eatSyntaxCharacter(e)||!!e.eat(47)&&(e.lastIntValue=47,!0):!(99===(t=e.current())||e.switchN&&107===t||(e.lastIntValue=t,e.advance(),0))},e.regexp_eatDecimalEscape=function(e){e.lastIntValue=0;var t=e.current();if(49<=t&&t<=57){for(;e.lastIntValue=10*e.lastIntValue+(t-48),e.advance(),48<=(t=e.current())&&t<=57;);return!0}return!1};function rt(e){return tt(e)||95===e}function it(e){return 48<=e&&e<=57}function nt(e){return 48<=e&&e<=57||65<=e&&e<=70||97<=e&&e<=102}function st(e){return 65<=e&&e<=70?e-65+10:97<=e&&e<=102?e-97+10:e-48}function at(e){return 48<=e&&e<=55}e.regexp_eatCharacterClassEscape=function(e){var t=e.current();if(100===(i=t)||68===i||115===i||83===i||119===i||87===i)return e.lastIntValue=-1,e.advance(),1;var r,i=!1;if(e.switchU&&9<=this.options.ecmaVersion&&((i=80===t)||112===t)){if(e.lastIntValue=-1,e.advance(),e.eat(123)&&(r=this.regexp_eatUnicodePropertyValueExpression(e))&&e.eat(125))return i&&2===r&&e.raise("Invalid property name"),r;e.raise("Invalid property name")}return 0},e.regexp_eatUnicodePropertyValueExpression=function(e){var t=e.pos;if(this.regexp_eatUnicodePropertyName(e)&&e.eat(61)){var r,i=e.lastStringValue;if(this.regexp_eatUnicodePropertyValue(e))return r=e.lastStringValue,this.regexp_validateUnicodePropertyNameAndValue(e,i,r),1}return e.pos=t,this.regexp_eatLoneUnicodePropertyNameOrValue(e)?(i=e.lastStringValue,this.regexp_validateUnicodePropertyNameOrValue(e,i)):0},e.regexp_validateUnicodePropertyNameAndValue=function(e,t,r){xe(e.unicodeProperties.nonBinary,t)||e.raise("Invalid property name"),e.unicodeProperties.nonBinary[t].test(r)||e.raise("Invalid property value")},e.regexp_validateUnicodePropertyNameOrValue=function(e,t){return e.unicodeProperties.binary.test(t)?1:e.switchV&&e.unicodeProperties.binaryOfStrings.test(t)?2:void e.raise("Invalid property name")},e.regexp_eatUnicodePropertyName=function(e){var t;for(e.lastStringValue="";rt(t=e.current());)e.lastStringValue+=Se(t),e.advance();return""!==e.lastStringValue},e.regexp_eatUnicodePropertyValue=function(e){var t,r;for(e.lastStringValue="";rt(r=t=e.current())||it(r);)e.lastStringValue+=Se(t),e.advance();return""!==e.lastStringValue},e.regexp_eatLoneUnicodePropertyNameOrValue=function(e){return this.regexp_eatUnicodePropertyValue(e)},e.regexp_eatCharacterClass=function(e){var t,r;return!!e.eat(91)&&(t=e.eat(94),r=this.regexp_classContents(e),e.eat(93)||e.raise("Unterminated character class"),t&&2===r&&e.raise("Negated character class may contain strings"),!0)},e.regexp_classContents=function(e){if(93!==e.current()){if(e.switchV)return this.regexp_classSetExpression(e);this.regexp_nonEmptyClassRanges(e)}return 1},e.regexp_nonEmptyClassRanges=function(e){for(;this.regexp_eatClassAtom(e);){var t,r=e.lastIntValue;e.eat(45)&&this.regexp_eatClassAtom(e)&&(t=e.lastIntValue,!e.switchU||-1!==r&&-1!==t||e.raise("Invalid character class"),-1!==r)&&-1!==t&&t<r&&e.raise("Range out of order in character class")}},e.regexp_eatClassAtom=function(e){var t=e.pos;if(e.eat(92)){if(this.regexp_eatClassEscape(e))return!0;e.switchU&&(99!==(r=e.current())&&!at(r)||e.raise("Invalid class escape"),e.raise("Invalid escape")),e.pos=t}var r=e.current();return 93!==r&&(e.lastIntValue=r,e.advance(),!0)},e.regexp_eatClassEscape=function(e){var t=e.pos;if(e.eat(98))return e.lastIntValue=8,!0;if(e.switchU&&e.eat(45))return e.lastIntValue=45,!0;if(!e.switchU&&e.eat(99)){if(this.regexp_eatClassControlLetter(e))return!0;e.pos=t}return this.regexp_eatCharacterClassEscape(e)||this.regexp_eatCharacterEscape(e)},e.regexp_classSetExpression=function(e){var t,r=1;if(!this.regexp_eatClassSetRange(e))if(t=this.regexp_eatClassSetOperand(e)){2===t&&(r=2);for(var i=e.pos;e.eatChars([38,38]);)38!==e.current()&&(t=this.regexp_eatClassSetOperand(e))?2!==t&&(r=1):e.raise("Invalid character in character class");if(i!==e.pos)return r;for(;e.eatChars([45,45]);)this.regexp_eatClassSetOperand(e)||e.raise("Invalid character in character class");if(i!==e.pos)return r}else e.raise("Invalid character in character class");for(;;)if(!this.regexp_eatClassSetRange(e)){if(!(t=this.regexp_eatClassSetOperand(e)))return r;2===t&&(r=2)}},e.regexp_eatClassSetRange=function(e){var t=e.pos;if(this.regexp_eatClassSetCharacter(e)){var r,i=e.lastIntValue;if(e.eat(45)&&this.regexp_eatClassSetCharacter(e))return r=e.lastIntValue,-1!==i&&-1!==r&&r<i&&e.raise("Range out of order in character class"),!0;e.pos=t}return!1},e.regexp_eatClassSetOperand=function(e){return this.regexp_eatClassSetCharacter(e)?1:this.regexp_eatClassStringDisjunction(e)||this.regexp_eatNestedClass(e)},e.regexp_eatNestedClass=function(e){var t=e.pos;if(e.eat(91)){var r=e.eat(94),i=this.regexp_classContents(e);if(e.eat(93))return r&&2===i&&e.raise("Negated character class may contain strings"),i;e.pos=t}if(e.eat(92)){r=this.regexp_eatCharacterClassEscape(e);if(r)return r;e.pos=t}return null},e.regexp_eatClassStringDisjunction=function(e){var t=e.pos;if(e.eatChars([92,113])){if(e.eat(123)){var r=this.regexp_classStringDisjunctionContents(e);if(e.eat(125))return r}else e.raise("Invalid escape");e.pos=t}return null},e.regexp_classStringDisjunctionContents=function(e){for(var t=this.regexp_classString(e);e.eat(124);)2===this.regexp_classString(e)&&(t=2);return t},e.regexp_classString=function(e){for(var t=0;this.regexp_eatClassSetCharacter(e);)t++;return 1===t?1:2},e.regexp_eatClassSetCharacter=function(e){var t,r=e.pos;return e.eat(92)?!(!this.regexp_eatCharacterEscape(e)&&!this.regexp_eatClassSetReservedPunctuator(e)&&(e.eat(98)?(e.lastIntValue=8,0):(e.pos=r,1))):!((r=e.current())<0||r===e.lookahead()&&(33===(t=r)||35<=t&&t<=38||42<=t&&t<=44||46===t||58<=t&&t<=64||94===t||96===t||126===t)||40===(t=r)||41===t||45===t||47===t||91<=t&&t<=93||123<=t&&t<=125||(e.advance(),e.lastIntValue=r,0))},e.regexp_eatClassSetReservedPunctuator=function(e){var t,r=e.current();return(33===(t=r)||35===t||37===t||38===t||44===t||45===t||58<=t&&t<=62||64===t||96===t||126===t)&&(e.lastIntValue=r,e.advance(),!0)},e.regexp_eatClassControlLetter=function(e){var t=e.current();return!(!it(t)&&95!==t||(e.lastIntValue=t%32,e.advance(),0))},e.regexp_eatHexEscapeSequence=function(e){var t=e.pos;if(e.eat(120)){if(this.regexp_eatFixedHexDigits(e,2))return!0;e.switchU&&e.raise("Invalid escape"),e.pos=t}return!1},e.regexp_eatDecimalDigits=function(e){var t,r=e.pos;for(e.lastIntValue=0;it(t=e.current());)e.lastIntValue=10*e.lastIntValue+(t-48),e.advance();return e.pos!==r},e.regexp_eatHexDigits=function(e){var t,r=e.pos;for(e.lastIntValue=0;nt(t=e.current());)e.lastIntValue=16*e.lastIntValue+st(t),e.advance();return e.pos!==r},e.regexp_eatLegacyOctalEscapeSequence=function(e){var t,r;return!!this.regexp_eatOctalDigit(e)&&(t=e.lastIntValue,this.regexp_eatOctalDigit(e)?(r=e.lastIntValue,t<=3&&this.regexp_eatOctalDigit(e)?e.lastIntValue=64*t+8*r+e.lastIntValue:e.lastIntValue=8*t+r):e.lastIntValue=t,!0)},e.regexp_eatOctalDigit=function(e){var t=e.current();return at(t)?(e.lastIntValue=t-48,e.advance(),!0):(e.lastIntValue=0,!1)},e.regexp_eatFixedHexDigits=function(e,t){for(var r=e.pos,i=e.lastIntValue=0;i<t;++i){var n=e.current();if(!nt(n))return e.pos=r,!1;e.lastIntValue=16*e.lastIntValue+st(n),e.advance()}return!0};function ot(e){this.type=e.type,this.value=e.value,this.start=e.start,this.end=e.end,e.options.locations&&(this.loc=new Ee(e,e.startLoc,e.endLoc)),e.options.ranges&&(this.range=[e.start,e.end])}d=h.prototype;function ct(e){return"function"!=typeof BigInt?null:BigInt(e.replace(/_/g,""))}d.next=function(e){!e&&this.type.keyword&&this.containsEsc&&this.raiseRecoverable(this.start,"Escape sequence in keyword "+this.type.keyword),this.options.onToken&&this.options.onToken(new ot(this)),this.lastTokEnd=this.end,this.lastTokStart=this.start,this.lastTokEndLoc=this.endLoc,this.lastTokStartLoc=this.startLoc,this.nextToken()},d.getToken=function(){return this.next(),new ot(this)},"undefined"!=typeof Symbol&&(d[Symbol.iterator]=function(){var t=this;return{next:function(){var e=t.getToken();return{done:e.type===y.eof,value:e}}}}),d.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(y.eof):e.override?e.override(this):void this.readToken(this.fullCharCodeAtPos())},d.readToken=function(e){return a(e,6<=this.options.ecmaVersion)||92===e?this.readWord():this.getTokenFromCode(e)},d.fullCharCodeAtPos=function(){var e,t=this.input.charCodeAt(this.pos);return t<=55295||56320<=t||(e=this.input.charCodeAt(this.pos+1))<=56319||57344<=e?t:(t<<10)+e-56613888},d.skipBlockComment=function(){var e=this.options.onComment&&this.curPosition(),t=this.pos,r=this.input.indexOf("*/",this.pos+=2);if(-1===r&&this.raise(this.pos-2,"Unterminated comment"),this.pos=r+2,this.options.locations)for(var i,n=t;-1<(i=me(this.input,n,this.pos));)++this.curLine,n=this.lineStart=i;this.options.onComment&&this.options.onComment(!0,this.input.slice(t+2,r),t,this.pos,e,this.curPosition())},d.skipLineComment=function(e){for(var t=this.pos,r=this.options.onComment&&this.curPosition(),i=this.input.charCodeAt(this.pos+=e);this.pos<this.input.length&&!fe(i);)i=this.input.charCodeAt(++this.pos);this.options.onComment&&this.options.onComment(!1,this.input.slice(t+e,this.pos),t,this.pos,r,this.curPosition())},d.skipSpace=function(){e:for(;this.pos<this.input.length;){var e=this.input.charCodeAt(this.pos);switch(e){case 32:case 160:++this.pos;break;case 13:10===this.input.charCodeAt(this.pos+1)&&++this.pos;case 10:case 8232:case 8233:++this.pos,this.options.locations&&(++this.curLine,this.lineStart=this.pos);break;case 47:switch(this.input.charCodeAt(this.pos+1)){case 42:this.skipBlockComment();break;case 47:this.skipLineComment(2);break;default:break e}break;default:if(!(8<e&&e<14||5760<=e&&ge.test(String.fromCharCode(e))))break e;++this.pos}}},d.finishToken=function(e,t){this.end=this.pos,this.options.locations&&(this.endLoc=this.curPosition());var r=this.type;this.type=e,this.value=t,this.updateContext(r)},d.readToken_dot=function(){var e,t=this.input.charCodeAt(this.pos+1);return 48<=t&&t<=57?this.readNumber(!0):(e=this.input.charCodeAt(this.pos+2),6<=this.options.ecmaVersion&&46===t&&46===e?(this.pos+=3,this.finishToken(y.ellipsis)):(++this.pos,this.finishToken(y.dot)))},d.readToken_slash=function(){var e=this.input.charCodeAt(this.pos+1);return this.exprAllowed?(++this.pos,this.readRegexp()):61===e?this.finishOp(y.assign,2):this.finishOp(y.slash,1)},d.readToken_mult_modulo_exp=function(e){var t=this.input.charCodeAt(this.pos+1),r=1,i=42===e?y.star:y.modulo;return 7<=this.options.ecmaVersion&&42===e&&42===t&&(++r,i=y.starstar,t=this.input.charCodeAt(this.pos+2)),61===t?this.finishOp(y.assign,r+1):this.finishOp(i,r)},d.readToken_pipe_amp=function(e){var t=this.input.charCodeAt(this.pos+1);if(t!==e)return 61===t?this.finishOp(y.assign,2):this.finishOp(124===e?y.bitwiseOR:y.bitwiseAND,1);if(12<=this.options.ecmaVersion&&61===this.input.charCodeAt(this.pos+2))return this.finishOp(y.assign,3);return this.finishOp(124===e?y.logicalOR:y.logicalAND,2)},d.readToken_caret=function(){return 61===this.input.charCodeAt(this.pos+1)?this.finishOp(y.assign,2):this.finishOp(y.bitwiseXOR,1)},d.readToken_plus_min=function(e){var t=this.input.charCodeAt(this.pos+1);return t===e?45!==t||this.inModule||62!==this.input.charCodeAt(this.pos+2)||0!==this.lastTokEnd&&!o.test(this.input.slice(this.lastTokEnd,this.pos))?this.finishOp(y.incDec,2):(this.skipLineComment(3),this.skipSpace(),this.nextToken()):61===t?this.finishOp(y.assign,2):this.finishOp(y.plusMin,1)},d.readToken_lt_gt=function(e){var t=this.input.charCodeAt(this.pos+1),r=1;return t===e?(r=62===e&&62===this.input.charCodeAt(this.pos+2)?3:2,61===this.input.charCodeAt(this.pos+r)?this.finishOp(y.assign,r+1):this.finishOp(y.bitShift,r)):33!==t||60!==e||this.inModule||45!==this.input.charCodeAt(this.pos+2)||45!==this.input.charCodeAt(this.pos+3)?this.finishOp(y.relational,r=61===t?2:r):(this.skipLineComment(4),this.skipSpace(),this.nextToken())},d.readToken_eq_excl=function(e){var t=this.input.charCodeAt(this.pos+1);return 61===t?this.finishOp(y.equality,61===this.input.charCodeAt(this.pos+2)?3:2):61===e&&62===t&&6<=this.options.ecmaVersion?(this.pos+=2,this.finishToken(y.arrow)):this.finishOp(61===e?y.eq:y.prefix,1)},d.readToken_question=function(){var e=this.options.ecmaVersion;if(11<=e){var t=this.input.charCodeAt(this.pos+1);if(46===t){var r=this.input.charCodeAt(this.pos+2);if(r<48||57<r)return this.finishOp(y.questionDot,2)}if(63===t){if(12<=e)if(61===this.input.charCodeAt(this.pos+2))return this.finishOp(y.assign,3);return this.finishOp(y.coalesce,2)}}return this.finishOp(y.question,1)},d.readToken_numberSign=function(){var e=this.options.ecmaVersion,t=35;if(13<=e&&(++this.pos,a(t=this.fullCharCodeAtPos(),!0)||92===t))return this.finishToken(y.privateId,this.readWord1());this.raise(this.pos,"Unexpected character '"+Se(t)+"'")},d.getTokenFromCode=function(e){switch(e){case 46:return this.readToken_dot();case 40:return++this.pos,this.finishToken(y.parenL);case 41:return++this.pos,this.finishToken(y.parenR);case 59:return++this.pos,this.finishToken(y.semi);case 44:return++this.pos,this.finishToken(y.comma);case 91:return++this.pos,this.finishToken(y.bracketL);case 93:return++this.pos,this.finishToken(y.bracketR);case 123:return++this.pos,this.finishToken(y.braceL);case 125:return++this.pos,this.finishToken(y.braceR);case 58:return++this.pos,this.finishToken(y.colon);case 96:if(this.options.ecmaVersion<6)break;return++this.pos,this.finishToken(y.backQuote);case 48:var t=this.input.charCodeAt(this.pos+1);if(120===t||88===t)return this.readRadixNumber(16);if(6<=this.options.ecmaVersion){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 63:return this.readToken_question();case 126:return this.finishOp(y.prefix,1);case 35:return this.readToken_numberSign()}this.raise(this.pos,"Unexpected character '"+Se(e)+"'")},d.finishOp=function(e,t){var r=this.input.slice(this.pos,this.pos+t);return this.pos+=t,this.finishToken(e,r)},d.readRegexp=function(){for(var e,t,r=this.pos;;){this.pos>=this.input.length&&this.raise(r,"Unterminated regular expression");var i=this.input.charAt(this.pos);if(o.test(i)&&this.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}++this.pos}var n=this.input.slice(r,this.pos),s=(++this.pos,this.pos),a=this.readWord1(),s=(this.containsEsc&&this.unexpected(s),this.regexpState||(this.regexpState=new v(this))),s=(s.reset(r,n,a),this.validateRegExpFlags(s),this.validateRegExpPattern(s),null);try{s=new RegExp(n,a)}catch(e){}return this.finishToken(y.regexp,{pattern:n,flags:a,value:s})},d.readInt=function(e,t,r){for(var i=12<=this.options.ecmaVersion&&void 0===t,n=r&&48===this.input.charCodeAt(this.pos),r=this.pos,s=0,a=0,o=0,c=null==t?1/0:t;o<c;++o,++this.pos){var h=this.input.charCodeAt(this.pos),u=void 0;if(i&&95===h)n&&this.raiseRecoverable(this.pos,"Numeric separator is not allowed in legacy octal numeric 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n=e.sent(),[3,7];case 4:return[5,P(V(t.right,r))];case 5:return s=e.sent(),[5,P(N(i,r,{feed:s}))];case 6:return[2,e.sent()];case 7:return[5,P(V(t.right,r))];case 8:switch(a=e.sent(),t.operator){case"=":return n.set(a),[2,n.get()];case"+=":return n.set(n.get()+a),[2,n.get()];case"-=":return n.set(n.get()-a),[2,n.get()];case"*=":return n.set(n.get()*a),[2,n.get()];case"/=":return n.set(n.get()/a),[2,n.get()];case"%=":return n.set(n.get()%a),[2,n.get()];case"**=":return n.set(Math.pow(n.get(),a)),[2,n.get()];case"<<=":return n.set(n.get()<<a),[2,n.get()];case">>=":return n.set(n.get()>>a),[2,n.get()];case">>>=":return n.set(n.get()>>>a),[2,n.get()];case"|=":return n.set(n.get()|a),[2,n.get()];case"^=":return n.set(n.get()^a),[2,n.get()];case"&=":return n.set(n.get()&a),[2,n.get()];case"??=":return n.set(null!=(o=n.get())?o:a),[2,n.get()];case"&&=":return n.set(n.get()&&a),[2,n.get()];case"||=":return n.set(n.get()||a),[2,n.get()];default:throw new SyntaxError("Unexpected token 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5:return[2,i]}})},CallExpression:function(t,r){var i,n,s,a,o,c,h,u,l,p,d,f,m;return A(this,function(e){switch(e.label){case 0:return"MemberExpression"!==t.callee.type?[3,5]:[5,P(xr(t.callee,r,{getObj:!0}))];case 1:return(i=e.sent(),t.callee.optional&&null==i)?[2,void 0]:(n=void 0,s=!1,t.callee.computed?[5,P(V(t.callee.property,r))]:[3,3]);case 2:return n=e.sent(),[3,4];case 3:"PrivateIdentifier"===t.callee.property.type?(n=t.callee.property.name,s=!0):n=t.callee.property.name,e.label=4;case 4:if(m=i,s&&(m=m[k]),a="Super"===t.callee.object.type?(a=r.find("this").get(),m[n].bind(a)):m[n],t.optional&&null==a)return[2,void 0];if("function"!=typeof a)throw new TypeError(n+" is not a function");if(a[mt])throw new TypeError("Class constructor "+n+" cannot be invoked without 'new'");return[3,7];case 5:return i=r.find("this").get(),[5,P(V(t.callee,r))];case 6:if(a=e.sent(),t.optional&&null==a)return[2,void 0];if("function"!=typeof 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i,n,s,a,o,c,h,u,l;return A(this,function(e){switch(e.label){case 0:return[5,P(V(t.callee,r))];case 1:if("function"!=typeof(i=e.sent())){if("Identifier"===t.callee.type)n=t.callee.name;else try{n=JSON.stringify(i)}catch(e){n=""+i}throw new TypeError(n+" is not a constructor")}if(i[ft])throw new TypeError((i.name||"(intermediate value)")+" is not a constructor");s=[],a=0,e.label=2;case 2:return a<t.arguments.length?"SpreadElement"!==(o=t.arguments[a]).type?[3,4]:(h=(c=s).concat,[5,P(kr(o,r))]):[3,7];case 3:return s=h.apply(c,[e.sent()]),[3,6];case 4:return l=(u=s).push,[5,P(V(o,r))];case 5:l.apply(u,[e.sent()]),e.label=6;case 6:return a++,[3,2];case 7:return[2,new(i.bind.apply(i,kt([void 0],s)))]}})},MetaProperty:function(t,r){return A(this,function(e){return"new"===t.meta.name&&"target"===t.property.name?[2,r.find(gt).get()]:"import"===t.meta.name&&"meta"===t.property.name?[2,{url:""}]:[2]})},SequenceExpression:function(t,r){var i,n;return A(this,function(e){switch(e.label){case 0:n=0,e.label=1;case 1:return n<t.expressions.length?[5,P(V(t.expressions[n],r))]:[3,4];case 2:i=e.sent(),e.label=3;case 3:return n++,[3,1];case 4:return[2,i]}})},ArrowFunctionExpression:function(t,r){return A(this,function(e){return[2,L(t,r)]})},TemplateLiteral:function(t,r){var i,n,s,a,o,c;return A(this,function(e){switch(e.label){case 0:i=t.quasis.slice(),n=t.expressions.slice(),s="",e.label=1;case 1:return(a=i.shift())?(o=s,[5,P(br(a))]):[3,5];case 2:return(s=o+e.sent(),a=n.shift())?(c=s,[5,P(V(a,r))]):[3,4];case 3:s=c+e.sent(),e.label=4;case 4:return[3,1];case 5:return[2,s]}})},TaggedTemplateExpression:function(t,r){var i,n,s,a,o,c,h;return A(this,function(e){switch(e.label){case 0:return[5,P(V(t.tag,r))];case 1:if(i=e.sent(),s=t.quasi.quasis,n=s.map(function(e){return e.value.cooked}),s=s.map(function(e){return e.value.raw}),f(n,"raw",{value:j(s)}),s=t.quasi.expressions,a=[],!s)return[3,5];o=0,e.label=2;case 2:return o<s.length?(h=(c=a).push,[5,P(V(s[o],r))]):[3,5];case 3:h.apply(c,[e.sent()]),e.label=4;case 4:return o++,[3,2];case 5:return[2,i.apply(void 0,kt([j(n)],a))]}})},TemplateElement:br,ClassExpression:function(t,r){var i,n;return A(this,function(e){switch(e.label){case 0:return t.id&&t.id.name?(i=new C(r),[5,P(ci(t,i))]):[3,2];case 1:return n=e.sent(),i.const(t.id.name,n),[2,n];case 2:return[5,P(ci(t,r))];case 3:return[2,e.sent()]}})},Super:wr,SpreadElement:kr,ChainExpression:function(t,r){return A(this,function(e){switch(e.label){case 0:return[5,P(V(t.expression,r))];case 1:return[2,e.sent()]}})},ImportExpression:function(t,r){var i,n,s,a;return A(this,function(e){switch(e.label){case 0:return i=r.global(),[5,P(V(t.source,r))];case 1:return(n=e.sent(),(a=i.find(yt+n))&&(a=a.get())&&("function"==typeof a?s=a():"object"==typeof a&&(s=a)),s&&"object"==typeof s)?[2,Promise.resolve(s)]:[2,Promise.reject(new TypeError('Failed to resolve module specifier "'+n+'"'))]}})},YieldExpression:function(t,r){var i,n;return A(this,function(e){switch(e.label){case 0:return[5,P(V(t.argument,r))];case 1:return(i=e.sent(),t.delegate)?[5,P(i)]:[3,3];case 2:return n=e.sent(),[3,5];case 3:return[4,i];case 4:n=e.sent(),e.label=5;case 5:return[2,n]}})},AwaitExpression:function(t,r){var i;return A(this,function(e){switch(e.label){case 0:return i=lt,[5,P(V(t.argument,r))];case 1:return i.RES=e.sent(),[4,lt];case 2:return[2,e.sent()]}})}});function _r(t,r,i){var n,s,a,o,c,h,u,l,p,d,f;return void 0===i&&(i={}),A(this,function(e){switch(e.label){case 0:n=i.kind,n=void 0===n?"var":n,s=i.hoist,s=void 0!==s&&s,a=i.onlyBlock,a=void 0!==a&&a,o=i.feed,o=void 0===o?{}:o,c=[],h=0,e.label=1;case 1:return h<t.properties.length?(u=t.properties[h],s?a||"var"===n?"Property"!==u.type?[3,5]:"Identifier"!==(p=u.value).type?[3,2]:(r[n](p.name,a?_:"var"===n?S:void 0),[3,4]):[3,7]:[3,8]):[3,18];case 2:return[5,P(N(p,r,{kind:n,hoist:s,onlyBlock:a}))];case 3:e.sent(),e.label=4;case 4:return[3,7];case 5:return[5,P(Cr(u,r,{kind:n,hoist:s,onlyBlock:a}))];case 6:e.sent(),e.label=7;case 7:return[3,17];case 8:return"Property"!==u.type?[3,15]:(l=void 0,u.computed?[5,P(V(u.key,r))]:[3,10]);case 9:return l=e.sent(),[3,11];case 10:l=u.key.name,e.label=11;case 11:return(c.push(l),"Identifier"!==(p=u.value).type)?[3,12]:(r[n](p.name,o[l]),[3,14]);case 12:return[5,P(N(p,r,{kind:n,feed:o[l]}))];case 13:e.sent(),e.label=14;case 14:return[3,17];case 15:for(d=m({},o),f=0;f<c.length;f++)delete d[c[f]];return[5,P(Cr(u,r,{kind:n,feed:d}))];case 16:e.sent(),e.label=17;case 17:return h++,[3,1];case 18:return[2]}})}function Er(t,r,i){var n,s,a,o,c,h,u,l;return void 0===i&&(i={}),A(this,function(e){switch(e.label){case 0:n=i.kind,s=i.hoist,s=void 0!==s&&s,a=i.onlyBlock,a=void 0!==a&&a,o=i.feed,o=void 0===o?[]:o,c=[],h=0,e.label=1;case 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r=t.key.name,i=e[r],n="true";"MethodDefinition"!==t.type||"get"!==t.kind&&"set"!==t.kind||(n=(t.static?"s":"i")+t.kind);if("iget"===i&&"iset"===n||"iset"===i&&"iget"===n||"sget"===i&&"sset"===n||"sset"===i&&"sget"===n)e[r]="true";else{if(i)return 1;e[r]=n}}(i,a)&&this.raiseRecoverable(a.key.start,"Identifier '#"+a.key.name+"' has already been declared"))}return this.strict=r,this.next(),e.body=this.finishNode(n,"ClassBody"),this.exitClassBody(),this.finishNode(e,t?"ClassDeclaration":"ClassExpression")},e.parseClassElement=function(e){if(this.eat(g.semi))return null;var t=this.options.ecmaVersion,r=this.startNode(),i="",n=!1,s=!1,a="method",o=!1;if(this.eatContextual("static")){if(13<=t&&this.eat(g.braceL))return this.parseClassStaticBlock(r),r;this.isClassElementNameStart()||this.type===g.star?o=!0:i="static"}return r.static=o,!i&&8<=t&&this.eatContextual("async")&&(!this.isClassElementNameStart()&&this.type!==g.star||this.canInsertSemicolon()?i="async":s=!0),!i&&(9<=t||!s)&&this.eat(g.star)&&(n=!0),i||s||n||(o=this.value,(this.eatContextual("get")||this.eatContextual("set"))&&(this.isClassElementNameStart()?a=o:i=o)),i?(r.computed=!1,r.key=this.startNodeAt(this.lastTokStart,this.lastTokStartLoc),r.key.name=i,this.finishNode(r.key,"Identifier")):this.parseClassElementName(r),t<13||this.type===g.parenL||"method"!==a||n||s?(i=(o=!r.static&&Fe(r,"constructor"))&&e,o&&"method"!==a&&this.raise(r.key.start,"Constructor can't have get/set modifier"),r.kind=o?"constructor":a,this.parseClassMethod(r,n,s,i)):this.parseClassField(r),r},e.isClassElementNameStart=function(){return this.type===g.name||this.type===g.privateId||this.type===g.num||this.type===g.string||this.type===g.bracketL||this.type.keyword},e.parseClassElementName=function(e){this.type===g.privateId?("constructor"===this.value&&this.raise(this.start,"Classes can't have an element named '#constructor'"),e.computed=!1,e.key=this.parsePrivateIdent()):this.parsePropertyName(e)},e.parseClassMethod=function(e,t,r,i){var n=e.key,n=("constructor"===e.kind?(t&&this.raise(n.start,"Constructor can't be a generator"),r&&this.raise(n.start,"Constructor can't be an async method")):e.static&&Fe(e,"prototype")&&this.raise(n.start,"Classes may not have a static property named prototype"),e.value=this.parseMethod(t,r,i));return"get"===e.kind&&0!==n.params.length&&this.raiseRecoverable(n.start,"getter should have no params"),"set"===e.kind&&1!==n.params.length&&this.raiseRecoverable(n.start,"setter should have exactly one param"),"set"===e.kind&&"RestElement"===n.params[0].type&&this.raiseRecoverable(n.params[0].start,"Setter cannot use rest params"),this.finishNode(e,"MethodDefinition")},e.parseClassField=function(e){var t,r;return Fe(e,"constructor")?this.raise(e.key.start,"Classes can't have a field named 'constructor'"):e.static&&Fe(e,"prototype")&&this.raise(e.key.start,"Classes can't have a static field named 'prototype'"),this.eat(g.eq)?(r=(t=this.currentThisScope()).inClassFieldInit,t.inClassFieldInit=!0,e.value=this.parseMaybeAssign(),t.inClassFieldInit=r):e.value=null,this.semicolon(),this.finishNode(e,"PropertyDefinition")},e.parseClassStaticBlock=function(e){e.body=[];var t=this.labels;for(this.labels=[],this.enterScope(320);this.type!==g.braceR;){var r=this.parseStatement(null);e.body.push(r)}return this.next(),this.exitScope(),this.labels=t,this.finishNode(e,"StaticBlock")},e.parseClassId=function(e,t){this.type===g.name?(e.id=this.parseIdent(),t&&this.checkLValSimple(e.id,2,!1)):(!0===t&&this.unexpected(),e.id=null)},e.parseClassSuper=function(e){e.superClass=this.eat(g._extends)?this.parseExprSubscripts(null,!1):null},e.enterClassBody=function(){var e={declared:Object.create(null),used:[]};return this.privateNameStack.push(e),e.declared},e.exitClassBody=function(){var e=this.privateNameStack.pop(),t=e.declared,r=e.used;if(this.options.checkPrivateFields)for(var e=this.privateNameStack.length,i=0===e?null:this.privateNameStack[e-1],n=0;n<r.length;++n){var s=r[n];be(t,s.name)||(i?i.used.push(s):this.raiseRecoverable(s.start,"Private field '#"+s.name+"' must be declared in an enclosing class"))}},e.parseExportAllDeclaration=function(e,t){return 11<=this.options.ecmaVersion&&(this.eatContextual("as")?(e.exported=this.parseModuleExportName(),this.checkExport(t,e.exported,this.lastTokStart)):e.exported=null),this.expectContextual("from"),this.type!==g.string&&this.unexpected(),e.source=this.parseExprAtom(),this.semicolon(),this.finishNode(e,"ExportAllDeclaration")},e.parseExport=function(e,t){if(this.next(),this.eat(g.star))return this.parseExportAllDeclaration(e,t);if(this.eat(g._default))return this.checkExport(t,"default",this.lastTokStart),e.declaration=this.parseExportDefaultDeclaration(),this.finishNode(e,"ExportDefaultDeclaration");if(this.shouldParseExportStatement())e.declaration=this.parseExportDeclaration(e),"VariableDeclaration"===e.declaration.type?this.checkVariableExport(t,e.declaration.declarations):this.checkExport(t,e.declaration.id,e.declaration.id.start),e.specifiers=[],e.source=null;else{if(e.declaration=null,e.specifiers=this.parseExportSpecifiers(t),this.eatContextual("from"))this.type!==g.string&&this.unexpected(),e.source=this.parseExprAtom();else{for(var r=0,i=e.specifiers;r<i.length;r+=1){var n=i[r];this.checkUnreserved(n.local),this.checkLocalExport(n.local),"Literal"===n.local.type&&this.raise(n.local.start,"A string literal cannot be used as an exported binding without `from`.")}e.source=null}this.semicolon()}return this.finishNode(e,"ExportNamedDeclaration")},e.parseExportDeclaration=function(e){return this.parseStatement(null)},e.parseExportDefaultDeclaration=function(){var e,t;return this.type===g._function||(t=this.isAsyncFunction())?(e=this.startNode(),this.next(),t&&this.next(),this.parseFunction(e,4|Oe,!1,t)):this.type===g._class?(e=this.startNode(),this.parseClass(e,"nullableID")):(t=this.parseMaybeAssign(),this.semicolon(),t)},e.checkExport=function(e,t,r){e&&("string"!=typeof t&&(t="Identifier"===t.type?t.name:t.value),be(e,t)&&this.raiseRecoverable(r,"Duplicate export '"+t+"'"),e[t]=!0)},e.checkPatternExport=function(e,t){var r=t.type;if("Identifier"===r)this.checkExport(e,t,t.start);else if("ObjectPattern"===r)for(var i=0,n=t.properties;i<n.length;i+=1){var s=n[i];this.checkPatternExport(e,s)}else if("ArrayPattern"===r)for(var a=0,o=t.elements;a<o.length;a+=1){var c=o[a];c&&this.checkPatternExport(e,c)}else"Property"===r?this.checkPatternExport(e,t.value):"AssignmentPattern"===r?this.checkPatternExport(e,t.left):"RestElement"===r&&this.checkPatternExport(e,t.argument)},e.checkVariableExport=function(e,t){if(e)for(var r=0,i=t;r<i.length;r+=1){var n=i[r];this.checkPatternExport(e,n.id)}},e.shouldParseExportStatement=function(){return"var"===this.type.keyword||"const"===this.type.keyword||"class"===this.type.keyword||"function"===this.type.keyword||this.isLet()||this.isAsyncFunction()},e.parseExportSpecifier=function(e){var t=this.startNode();return t.local=this.parseModuleExportName(),t.exported=this.eatContextual("as")?this.parseModuleExportName():t.local,this.checkExport(e,t.exported,t.exported.start),this.finishNode(t,"ExportSpecifier")},e.parseExportSpecifiers=function(e){var t=[],r=!0;for(this.expect(g.braceL);!this.eat(g.braceR);){if(r)r=!1;else if(this.expect(g.comma),this.afterTrailingComma(g.braceR))break;t.push(this.parseExportSpecifier(e))}return t},e.parseImport=function(e){return this.next(),this.type===g.string?(e.specifiers=De,e.source=this.parseExprAtom()):(e.specifiers=this.parseImportSpecifiers(),this.expectContextual("from"),e.source=this.type===g.string?this.parseExprAtom():this.unexpected()),this.semicolon(),this.finishNode(e,"ImportDeclaration")},e.parseImportSpecifier=function(){var e=this.startNode();return e.imported=this.parseModuleExportName(),this.eatContextual("as")?e.local=this.parseIdent():(this.checkUnreserved(e.imported),e.local=e.imported),this.checkLValSimple(e.local,2),this.finishNode(e,"ImportSpecifier")},e.parseImportDefaultSpecifier=function(){var e=this.startNode();return e.local=this.parseIdent(),this.checkLValSimple(e.local,2),this.finishNode(e,"ImportDefaultSpecifier")},e.parseImportNamespaceSpecifier=function(){var e=this.startNode();return this.next(),this.expectContextual("as"),e.local=this.parseIdent(),this.checkLValSimple(e.local,2),this.finishNode(e,"ImportNamespaceSpecifier")},e.parseImportSpecifiers=function(){var e=[],t=!0;if(this.type!==g.name||(e.push(this.parseImportDefaultSpecifier()),this.eat(g.comma)))if(this.type===g.star)e.push(this.parseImportNamespaceSpecifier());else for(this.expect(g.braceL);!this.eat(g.braceR);){if(t)t=!1;else if(this.expect(g.comma),this.afterTrailingComma(g.braceR))break;e.push(this.parseImportSpecifier())}return e},e.parseModuleExportName=function(){var e;return 13<=this.options.ecmaVersion&&this.type===g.string?(e=this.parseLiteral(this.value),Ce.test(e.value)&&this.raise(e.start,"An export name cannot include a lone surrogate."),e):this.parseIdent(!0)},e.adaptDirectivePrologue=function(e){for(var t=0;t<e.length&&this.isDirectiveCandidate(e[t]);++t)e[t].directive=e[t].expression.raw.slice(1,-1)},e.isDirectiveCandidate=function(e){return 5<=this.options.ecmaVersion&&"ExpressionStatement"===e.type&&"Literal"===e.expression.type&&"string"==typeof e.expression.value&&('"'===this.input[e.start]||"'"===this.input[e.start])};function l(e,t,r,i,n){this.token=e,this.isExpr=!!t,this.preserveSpace=!!r,this.override=i,this.generator=!!n}var e=h.prototype,u=(e.toAssignable=function(e,t,r){if(6<=this.options.ecmaVersion&&e)switch(e.type){case"Identifier":this.inAsync&&"await"===e.name&&this.raise(e.start,"Cannot use 'await' as identifier inside an async function");break;case"ObjectPattern":case"ArrayPattern":case"AssignmentPattern":case"RestElement":break;case"ObjectExpression":e.type="ObjectPattern",r&&this.checkPatternErrors(r,!0);for(var i=0,n=e.properties;i<n.length;i+=1){var s=n[i];this.toAssignable(s,t),"RestElement"!==s.type||"ArrayPattern"!==s.argument.type&&"ObjectPattern"!==s.argument.type||this.raise(s.argument.start,"Unexpected token")}break;case"Property":"init"!==e.kind&&this.raise(e.key.start,"Object pattern can't contain getter or setter"),this.toAssignable(e.value,t);break;case"ArrayExpression":e.type="ArrayPattern",r&&this.checkPatternErrors(r,!0),this.toAssignableList(e.elements,t);break;case"SpreadElement":e.type="RestElement",this.toAssignable(e.argument,t),"AssignmentPattern"===e.argument.type&&this.raise(e.argument.start,"Rest elements cannot have a default value");break;case"AssignmentExpression":"="!==e.operator&&this.raise(e.left.end,"Only '=' operator can be used for specifying default value."),e.type="AssignmentPattern",delete e.operator,this.toAssignable(e.left,t);break;case"ParenthesizedExpression":this.toAssignable(e.expression,t,r);break;case"ChainExpression":this.raiseRecoverable(e.start,"Optional chaining cannot appear in left-hand side");break;case"MemberExpression":if(!t)break;default:this.raise(e.start,"Assigning to rvalue")}else r&&this.checkPatternErrors(r,!0);return e},e.toAssignableList=function(e,t){for(var r,i=e.length,n=0;n<i;n++){var s=e[n];s&&this.toAssignable(s,t)}return i&&(r=e[i-1],6===this.options.ecmaVersion)&&t&&r&&"RestElement"===r.type&&"Identifier"!==r.argument.type&&this.unexpected(r.argument.start),e},e.parseSpread=function(e){var t=this.startNode();return this.next(),t.argument=this.parseMaybeAssign(!1,e),this.finishNode(t,"SpreadElement")},e.parseRestBinding=function(){var e=this.startNode();return this.next(),6===this.options.ecmaVersion&&this.type!==g.name&&this.unexpected(),e.argument=this.parseBindingAtom(),this.finishNode(e,"RestElement")},e.parseBindingAtom=function(){if(6<=this.options.ecmaVersion)switch(this.type){case g.bracketL:var e=this.startNode();return this.next(),e.elements=this.parseBindingList(g.bracketR,!0,!0),this.finishNode(e,"ArrayPattern");case g.braceL:return this.parseObj(!0)}return this.parseIdent()},e.parseBindingList=function(e,t,r,i){for(var n=[],s=!0;!this.eat(e);)if(s?s=!1:this.expect(g.comma),t&&this.type===g.comma)n.push(null);else{if(r&&this.afterTrailingComma(e))break;if(this.type===g.ellipsis){var a=this.parseRestBinding();this.parseBindingListItem(a),n.push(a),this.type===g.comma&&this.raiseRecoverable(this.start,"Comma is not permitted after the rest element"),this.expect(e);break}n.push(this.parseAssignableListItem(i))}return n},e.parseAssignableListItem=function(e){var t=this.parseMaybeDefault(this.start,this.startLoc);return this.parseBindingListItem(t),t},e.parseBindingListItem=function(e){return e},e.parseMaybeDefault=function(e,t,r){return r=r||this.parseBindingAtom(),this.options.ecmaVersion<6||!this.eat(g.eq)?r:((e=this.startNodeAt(e,t)).left=r,e.right=this.parseMaybeAssign(),this.finishNode(e,"AssignmentPattern"))},e.checkLValSimple=function(e,t,r){var i=0!==(t=void 0===t?0:t);switch(e.type){case"Identifier":this.strict&&this.reservedWordsStrictBind.test(e.name)&&this.raiseRecoverable(e.start,(i?"Binding ":"Assigning to ")+e.name+" in strict mode"),i&&(2===t&&"let"===e.name&&this.raiseRecoverable(e.start,"let is disallowed as a lexically bound name"),r&&(be(r,e.name)&&this.raiseRecoverable(e.start,"Argument name clash"),r[e.name]=!0),5!==t)&&this.declareName(e.name,t,e.start);break;case"ChainExpression":this.raiseRecoverable(e.start,"Optional chaining cannot appear in left-hand side");break;case"MemberExpression":i&&this.raiseRecoverable(e.start,"Binding member expression");break;case"ParenthesizedExpression":return i&&this.raiseRecoverable(e.start,"Binding parenthesized expression"),this.checkLValSimple(e.expression,t,r);default:this.raise(e.start,(i?"Binding":"Assigning to")+" rvalue")}},e.checkLValPattern=function(e,t,r){switch(void 0===t&&(t=0),e.type){case"ObjectPattern":for(var i=0,n=e.properties;i<n.length;i+=1){var s=n[i];this.checkLValInnerPattern(s,t,r)}break;case"ArrayPattern":for(var a=0,o=e.elements;a<o.length;a+=1){var c=o[a];c&&this.checkLValInnerPattern(c,t,r)}break;default:this.checkLValSimple(e,t,r)}},{b_stat:new l("{",!(e.checkLValInnerPattern=function(e,t,r){switch(void 0===t&&(t=0),e.type){case"Property":this.checkLValInnerPattern(e.value,t,r);break;case"AssignmentPattern":this.checkLValPattern(e.left,t,r);break;case"RestElement":this.checkLValPattern(e.argument,t,r);break;default:this.checkLValPattern(e,t,r)}})),b_expr:new l("{",!0),b_tmpl:new l("${",!1),p_stat:new l("(",!1),p_expr:new l("(",!0),q_tmpl:new l("`",!0,!0,function(e){return e.tryReadTemplateToken()}),f_stat:new l("function",!1),f_expr:new l("function",!0),f_expr_gen:new l("function",!0,!1,null,!0),f_gen:new l("function",!1,!1,null,!0)}),e=h.prototype,e=(e.initialContext=function(){return[u.b_stat]},e.curContext=function(){return this.context[this.context.length-1]},e.braceIsBlock=function(e){var t=this.curContext();return t===u.f_expr||t===u.f_stat||(e!==g.colon||t!==u.b_stat&&t!==u.b_expr?e===g._return||e===g.name&&this.exprAllowed?o.test(this.input.slice(this.lastTokEnd,this.start)):e===g._else||e===g.semi||e===g.eof||e===g.parenR||e===g.arrow||(e===g.braceL?t===u.b_stat:e!==g._var&&e!==g._const&&e!==g.name&&!this.exprAllowed):!t.isExpr)},e.inGeneratorContext=function(){for(var e=this.context.length-1;1<=e;e--){var t=this.context[e];if("function"===t.token)return t.generator}return!1},e.updateContext=function(e){var t,r=this.type;r.keyword&&e===g.dot?this.exprAllowed=!1:(t=r.updateContext)?t.call(this,e):this.exprAllowed=r.beforeExpr},e.overrideContext=function(e){this.curContext()!==e&&(this.context[this.context.length-1]=e)},g.parenR.updateContext=g.braceR.updateContext=function(){var e;1===this.context.length?this.exprAllowed=!0:((e=this.context.pop())===u.b_stat&&"function"===this.curContext().token&&(e=this.context.pop()),this.exprAllowed=!e.isExpr)},g.braceL.updateContext=function(e){this.context.push(this.braceIsBlock(e)?u.b_stat:u.b_expr),this.exprAllowed=!0},g.dollarBraceL.updateContext=function(){this.context.push(u.b_tmpl),this.exprAllowed=!0},g.parenL.updateContext=function(e){e=e===g._if||e===g._for||e===g._with||e===g._while;this.context.push(e?u.p_stat:u.p_expr),this.exprAllowed=!0},g.incDec.updateContext=function(){},g._function.updateContext=g._class.updateContext=function(e){!e.beforeExpr||e===g._else||e===g.semi&&this.curContext()!==u.p_stat||e===g._return&&o.test(this.input.slice(this.lastTokEnd,this.start))||(e===g.colon||e===g.braceL)&&this.curContext()===u.b_stat?this.context.push(u.f_stat):this.context.push(u.f_expr),this.exprAllowed=!1},g.colon.updateContext=function(){"function"===this.curContext().token&&this.context.pop(),this.exprAllowed=!0},g.backQuote.updateContext=function(){this.curContext()===u.q_tmpl?this.context.pop():this.context.push(u.q_tmpl),this.exprAllowed=!1},g.star.updateContext=function(e){e===g._function&&(e=this.context.length-1,this.context[e]===u.f_expr?this.context[e]=u.f_expr_gen:this.context[e]=u.f_gen),this.exprAllowed=!0},g.name.updateContext=function(e){var t=!1;6<=this.options.ecmaVersion&&e!==g.dot&&("of"===this.value&&!this.exprAllowed||"yield"===this.value&&this.inGeneratorContext())&&(t=!0),this.exprAllowed=t},h.prototype);e.checkPropClash=function(e,t,r){if(!(9<=this.options.ecmaVersion&&"SpreadElement"===e.type||6<=this.options.ecmaVersion&&(e.computed||e.method||e.shorthand))){var i=e.key;switch(i.type){case"Identifier":n=i.name;break;case"Literal":n=String(i.value);break;default:return}var n,e=e.kind;6<=this.options.ecmaVersion?"__proto__"===n&&"init"===e&&(t.proto&&(r?r.doubleProto<0&&(r.doubleProto=i.start):this.raiseRecoverable(i.start,"Redefinition of __proto__ property")),t.proto=!0):((r=t[n="$"+n])?("init"===e?this.strict&&r.init||r.get||r.set:r.init||r[e])&&this.raiseRecoverable(i.start,"Redefinition of property"):r=t[n]={init:!1,get:!1,set:!1},r[e]=!0)}},e.parseExpression=function(e,t){var r=this.start,i=this.startLoc,n=this.parseMaybeAssign(e,t);if(this.type!==g.comma)return n;var s=this.startNodeAt(r,i);for(s.expressions=[n];this.eat(g.comma);)s.expressions.push(this.parseMaybeAssign(e,t));return this.finishNode(s,"SequenceExpression")},e.parseMaybeAssign=function(e,t,r){if(this.isContextual("yield")){if(this.inGenerator)return this.parseYield(e);this.exprAllowed=!1}var i=!1,n=-1,s=-1,a=-1,o=(t?(n=t.parenthesizedAssign,s=t.trailingComma,a=t.doubleProto,t.parenthesizedAssign=t.trailingComma=-1):(t=new Ve,i=!0),this.start),c=this.startLoc,h=(this.type!==g.parenL&&this.type!==g.name||(this.potentialArrowAt=this.start,this.potentialArrowInForAwait="await"===e),this.parseMaybeConditional(e,t));return r&&(h=r.call(this,h,o,c)),this.type.isAssign?((r=this.startNodeAt(o,c)).operator=this.value,this.type===g.eq&&(h=this.toAssignable(h,!1,t)),i||(t.parenthesizedAssign=t.trailingComma=t.doubleProto=-1),t.shorthandAssign>=h.start&&(t.shorthandAssign=-1),this.type===g.eq?this.checkLValPattern(h):this.checkLValSimple(h),r.left=h,this.next(),r.right=this.parseMaybeAssign(e),-1<a&&(t.doubleProto=a),this.finishNode(r,"AssignmentExpression")):(i&&this.checkExpressionErrors(t,!0),-1<n&&(t.parenthesizedAssign=n),-1<s&&(t.trailingComma=s),h)},e.parseMaybeConditional=function(e,t){var r=this.start,i=this.startLoc,n=this.parseExprOps(e,t);return!this.checkExpressionErrors(t)&&this.eat(g.question)?((t=this.startNodeAt(r,i)).test=n,t.consequent=this.parseMaybeAssign(),this.expect(g.colon),t.alternate=this.parseMaybeAssign(e),this.finishNode(t,"ConditionalExpression")):n},e.parseExprOps=function(e,t){var r=this.start,i=this.startLoc,n=this.parseMaybeUnary(t,!1,!1,e);return this.checkExpressionErrors(t)||n.start===r&&"ArrowFunctionExpression"===n.type?n:this.parseExprOp(n,r,i,-1,e)},e.parseExprOp=function(e,t,r,i,n){var s,a,o,c,h,l=this.type.binop;if(null!=l&&(!n||this.type!==g._in)&&i<l)return s=this.type===g.logicalOR||this.type===g.logicalAND,(a=this.type===g.coalesce)&&(l=g.logicalAND.binop),o=this.value,this.next(),c=this.start,h=this.startLoc,c=this.parseExprOp(this.parseMaybeUnary(null,!1,!1,n),c,h,l,n),h=this.buildBinary(t,r,e,c,o,s||a),(s&&this.type===g.coalesce||a&&(this.type===g.logicalOR||this.type===g.logicalAND))&&this.raiseRecoverable(this.start,"Logical expressions and coalesce expressions cannot be mixed. Wrap either by parentheses"),this.parseExprOp(h,t,r,i,n);return e},e.buildBinary=function(e,t,r,i,n,s){"PrivateIdentifier"===i.type&&this.raise(i.start,"Private identifier can only be left side of binary expression");e=this.startNodeAt(e,t);return e.left=r,e.operator=n,e.right=i,this.finishNode(e,s?"LogicalExpression":"BinaryExpression")},e.parseMaybeUnary=function(e,t,r,i){var n,s=this.start,a=this.startLoc;if(this.isContextual("await")&&this.canAwait)n=this.parseAwait(i),t=!0;else if(this.type.prefix){var o=this.startNode(),c=this.type===g.incDec;o.operator=this.value,o.prefix=!0,this.next(),o.argument=this.parseMaybeUnary(null,!0,c,i),this.checkExpressionErrors(e,!0),c?this.checkLValSimple(o.argument):this.strict&&"delete"===o.operator&&"Identifier"===o.argument.type?this.raiseRecoverable(o.start,"Deleting local variable in strict mode"):"delete"===o.operator&&function e(t){return"MemberExpression"===t.type&&"PrivateIdentifier"===t.property.type||"ChainExpression"===t.type&&e(t.expression)}(o.argument)?this.raiseRecoverable(o.start,"Private fields can not be deleted"):t=!0,n=this.finishNode(o,c?"UpdateExpression":"UnaryExpression")}else if(t||this.type!==g.privateId){if(n=this.parseExprSubscripts(e,i),this.checkExpressionErrors(e))return n;for(;this.type.postfix&&!this.canInsertSemicolon();){var h=this.startNodeAt(s,a);h.operator=this.value,h.prefix=!1,h.argument=n,this.checkLValSimple(n),this.next(),n=this.finishNode(h,"UpdateExpression")}}else(i||0===this.privateNameStack.length)&&this.options.checkPrivateFields&&this.unexpected(),n=this.parsePrivateIdent(),this.type!==g._in&&this.unexpected();return r||!this.eat(g.starstar)?n:t?void this.unexpected(this.lastTokStart):this.buildBinary(s,a,n,this.parseMaybeUnary(null,!1,!1,i),"**",!1)},e.parseExprSubscripts=function(e,t){var r=this.start,i=this.startLoc,n=this.parseExprAtom(e,t);return"ArrowFunctionExpression"===n.type&&")"!==this.input.slice(this.lastTokStart,this.lastTokEnd)||(n=this.parseSubscripts(n,r,i,!1,t),e&&"MemberExpression"===n.type&&(e.parenthesizedAssign>=n.start&&(e.parenthesizedAssign=-1),e.parenthesizedBind>=n.start&&(e.parenthesizedBind=-1),e.trailingComma>=n.start)&&(e.trailingComma=-1)),n},e.parseSubscripts=function(e,t,r,i,n){for(var s=8<=this.options.ecmaVersion&&"Identifier"===e.type&&"async"===e.name&&this.lastTokEnd===e.end&&!this.canInsertSemicolon()&&e.end-e.start==5&&this.potentialArrowAt===e.start,a=!1;;){var o,c=this.parseSubscript(e,t,r,i,s,a,n);if(c.optional&&(a=!0),c===e||"ArrowFunctionExpression"===c.type)return a&&((o=this.startNodeAt(t,r)).expression=c,c=this.finishNode(o,"ChainExpression")),c;e=c}},e.shouldParseAsyncArrow=function(){return!this.canInsertSemicolon()&&this.eat(g.arrow)},e.parseSubscriptAsyncArrow=function(e,t,r,i){return this.parseArrowExpression(this.startNodeAt(e,t),r,!0,i)},e.parseSubscript=function(e,t,r,i,n,s,a){var o=11<=this.options.ecmaVersion,c=o&&this.eat(g.questionDot),h=(i&&c&&this.raise(this.lastTokStart,"Optional chaining cannot appear in the callee of new expressions"),this.eat(g.bracketL));if(h||c&&this.type!==g.parenL&&this.type!==g.backQuote||this.eat(g.dot)){var l=this.startNodeAt(t,r);l.object=e,h?(l.property=this.parseExpression(),this.expect(g.bracketR)):this.type===g.privateId&&"Super"!==e.type?l.property=this.parsePrivateIdent():l.property=this.parseIdent("never"!==this.options.allowReserved),l.computed=!!h,o&&(l.optional=c),e=this.finishNode(l,"MemberExpression")}else if(!i&&this.eat(g.parenL)){var h=new Ve,l=this.yieldPos,i=this.awaitPos,u=this.awaitIdentPos,p=(this.yieldPos=0,this.awaitPos=0,this.awaitIdentPos=0,this.parseExprList(g.parenR,8<=this.options.ecmaVersion,!1,h));if(n&&!c&&this.shouldParseAsyncArrow())return this.checkPatternErrors(h,!1),this.checkYieldAwaitInDefaultParams(),0<this.awaitIdentPos&&this.raise(this.awaitIdentPos,"Cannot use 'await' as identifier inside an async function"),this.yieldPos=l,this.awaitPos=i,this.awaitIdentPos=u,this.parseSubscriptAsyncArrow(t,r,p,a);this.checkExpressionErrors(h,!0),this.yieldPos=l||this.yieldPos,this.awaitPos=i||this.awaitPos,this.awaitIdentPos=u||this.awaitIdentPos;n=this.startNodeAt(t,r);n.callee=e,n.arguments=p,o&&(n.optional=c),e=this.finishNode(n,"CallExpression")}else this.type===g.backQuote&&((c||s)&&this.raise(this.start,"Optional chaining cannot appear in the tag of tagged template expressions"),(a=this.startNodeAt(t,r)).tag=e,a.quasi=this.parseTemplate({isTagged:!0}),e=this.finishNode(a,"TaggedTemplateExpression"));return e},e.parseExprAtom=function(e,t,r){this.type===g.slash&&this.readRegexp();var i=this.potentialArrowAt===this.start;switch(this.type){case g._super:return this.allowSuper||this.raise(this.start,"'super' keyword outside a method"),c=this.startNode(),this.next(),this.type!==g.parenL||this.allowDirectSuper||this.raise(c.start,"super() call outside constructor of a subclass"),this.type!==g.dot&&this.type!==g.bracketL&&this.type!==g.parenL&&this.unexpected(),this.finishNode(c,"Super");case g._this:return c=this.startNode(),this.next(),this.finishNode(c,"ThisExpression");case g.name:var n=this.start,s=this.startLoc,a=this.containsEsc,o=this.parseIdent(!1);if(8<=this.options.ecmaVersion&&!a&&"async"===o.name&&!this.canInsertSemicolon()&&this.eat(g._function))return this.overrideContext(u.f_expr),this.parseFunction(this.startNodeAt(n,s),0,!1,!0,t);if(i&&!this.canInsertSemicolon()){if(this.eat(g.arrow))return this.parseArrowExpression(this.startNodeAt(n,s),[o],!1,t);if(8<=this.options.ecmaVersion&&"async"===o.name&&this.type===g.name&&!a&&(!this.potentialArrowInForAwait||"of"!==this.value||this.containsEsc))return o=this.parseIdent(!1),!this.canInsertSemicolon()&&this.eat(g.arrow)||this.unexpected(),this.parseArrowExpression(this.startNodeAt(n,s),[o],!0,t)}return o;case g.regexp:var c,a=this.value;return(c=this.parseLiteral(a.value)).regex={pattern:a.pattern,flags:a.flags},c;case g.num:case g.string:return this.parseLiteral(this.value);case g._null:case g._true:case g._false:return(c=this.startNode()).value=this.type===g._null?null:this.type===g._true,c.raw=this.type.keyword,this.next(),this.finishNode(c,"Literal");case g.parenL:n=this.start,s=this.parseParenAndDistinguishExpression(i,t);return e&&(e.parenthesizedAssign<0&&!this.isSimpleAssignTarget(s)&&(e.parenthesizedAssign=n),e.parenthesizedBind<0)&&(e.parenthesizedBind=n),s;case g.bracketL:return c=this.startNode(),this.next(),c.elements=this.parseExprList(g.bracketR,!0,!0,e),this.finishNode(c,"ArrayExpression");case g.braceL:return this.overrideContext(u.b_expr),this.parseObj(!1,e);case g._function:return c=this.startNode(),this.next(),this.parseFunction(c,0);case g._class:return this.parseClass(this.startNode(),!1);case g._new:return this.parseNew();case g.backQuote:return this.parseTemplate();case g._import:return 11<=this.options.ecmaVersion?this.parseExprImport(r):this.unexpected();default:return this.parseExprAtomDefault()}},e.parseExprAtomDefault=function(){this.unexpected()},e.parseExprImport=function(e){var t=this.startNode();return this.containsEsc&&this.raiseRecoverable(this.start,"Escape sequence in keyword import"),this.next(),this.type!==g.parenL||e?this.type===g.dot?((e=this.startNodeAt(t.start,t.loc&&t.loc.start)).name="import",t.meta=this.finishNode(e,"Identifier"),this.parseImportMeta(t)):void this.unexpected():this.parseDynamicImport(t)},e.parseDynamicImport=function(e){var t;return this.next(),e.source=this.parseMaybeAssign(),this.eat(g.parenR)||(t=this.start,this.eat(g.comma)&&this.eat(g.parenR)?this.raiseRecoverable(t,"Trailing comma is not allowed in import()"):this.unexpected(t)),this.finishNode(e,"ImportExpression")},e.parseImportMeta=function(e){this.next();var t=this.containsEsc;return e.property=this.parseIdent(!0),"meta"!==e.property.name&&this.raiseRecoverable(e.property.start,"The only valid meta property for import is 'import.meta'"),t&&this.raiseRecoverable(e.start,"'import.meta' must not contain escaped characters"),"module"===this.options.sourceType||this.options.allowImportExportEverywhere||this.raiseRecoverable(e.start,"Cannot use 'import.meta' outside a module"),this.finishNode(e,"MetaProperty")},e.parseLiteral=function(e){var t=this.startNode();return t.value=e,t.raw=this.input.slice(this.start,this.end),110===t.raw.charCodeAt(t.raw.length-1)&&(t.bigint=t.raw.slice(0,-1).replace(/_/g,"")),this.next(),this.finishNode(t,"Literal")},e.parseParenExpression=function(){this.expect(g.parenL);var e=this.parseExpression();return this.expect(g.parenR),e},e.shouldParseArrow=function(e){return!this.canInsertSemicolon()},e.parseParenAndDistinguishExpression=function(e,t){var r,i=this.start,n=this.startLoc,s=8<=this.options.ecmaVersion;if(6<=this.options.ecmaVersion){this.next();var a,o=this.start,c=this.startLoc,h=[],l=!0,u=!1,p=new Ve,d=this.yieldPos,f=this.awaitPos;for(this.yieldPos=0,this.awaitPos=0;this.type!==g.parenR;){if(l?l=!1:this.expect(g.comma),s&&this.afterTrailingComma(g.parenR,!0)){u=!0;break}if(this.type===g.ellipsis){a=this.start,h.push(this.parseParenItem(this.parseRestBinding())),this.type===g.comma&&this.raiseRecoverable(this.start,"Comma is not permitted after the rest element");break}h.push(this.parseMaybeAssign(!1,p,this.parseParenItem))}var m=this.lastTokEnd,y=this.lastTokEndLoc;if(this.expect(g.parenR),e&&this.shouldParseArrow(h)&&this.eat(g.arrow))return this.checkPatternErrors(p,!1),this.checkYieldAwaitInDefaultParams(),this.yieldPos=d,this.awaitPos=f,this.parseParenArrowList(i,n,h,t);h.length&&!u||this.unexpected(this.lastTokStart),a&&this.unexpected(a),this.checkExpressionErrors(p,!0),this.yieldPos=d||this.yieldPos,this.awaitPos=f||this.awaitPos,1<h.length?((r=this.startNodeAt(o,c)).expressions=h,this.finishNodeAt(r,"SequenceExpression",m,y)):r=h[0]}else r=this.parseParenExpression();return this.options.preserveParens?((e=this.startNodeAt(i,n)).expression=r,this.finishNode(e,"ParenthesizedExpression")):r},e.parseParenItem=function(e){return e},e.parseParenArrowList=function(e,t,r,i){return this.parseArrowExpression(this.startNodeAt(e,t),r,!1,i)};function je(e){this.flags=e,this.var=[],this.lexical=[],this.functions=[],this.inClassFieldInit=!1}function Ue(e,t,r){this.type="",this.start=t,this.end=0,e.options.locations&&(this.loc=new Ee(e,r)),e.options.directSourceFile&&(this.sourceFile=e.options.directSourceFile),e.options.ranges&&(this.range=[t,0])}var qe=[],e=(e.parseNew=function(){this.containsEsc&&this.raiseRecoverable(this.start,"Escape sequence in keyword new");var e,t,r=this.startNode();return this.next(),6<=this.options.ecmaVersion&&this.type===g.dot?((e=this.startNodeAt(r.start,r.loc&&r.loc.start)).name="new",r.meta=this.finishNode(e,"Identifier"),this.next(),e=this.containsEsc,r.property=this.parseIdent(!0),"target"!==r.property.name&&this.raiseRecoverable(r.property.start,"The only valid meta property for new is 'new.target'"),e&&this.raiseRecoverable(r.start,"'new.target' must not contain escaped characters"),this.allowNewDotTarget||this.raiseRecoverable(r.start,"'new.target' can only be used in functions and class static block"),this.finishNode(r,"MetaProperty")):(e=this.start,t=this.startLoc,r.callee=this.parseSubscripts(this.parseExprAtom(null,!1,!0),e,t,!0,!1),this.eat(g.parenL)?r.arguments=this.parseExprList(g.parenR,8<=this.options.ecmaVersion,!1):r.arguments=qe,this.finishNode(r,"NewExpression"))},e.parseTemplateElement=function(e){var e=e.isTagged,t=this.startNode();return this.type===g.invalidTemplate?(e||this.raiseRecoverable(this.start,"Bad escape sequence in untagged template literal"),t.value={raw:this.value,cooked:null}):t.value={raw:this.input.slice(this.start,this.end).replace(/\r\n?/g,"\n"),cooked:this.value},this.next(),t.tail=this.type===g.backQuote,this.finishNode(t,"TemplateElement")},e.parseTemplate=function(e){var t=(e=void 0===e?{}:e).isTagged,r=(void 0===t&&(t=!1),this.startNode()),i=(this.next(),r.expressions=[],this.parseTemplateElement({isTagged:t}));for(r.quasis=[i];!i.tail;)this.type===g.eof&&this.raise(this.pos,"Unterminated template literal"),this.expect(g.dollarBraceL),r.expressions.push(this.parseExpression()),this.expect(g.braceR),r.quasis.push(i=this.parseTemplateElement({isTagged:t}));return this.next(),this.finishNode(r,"TemplateLiteral")},e.isAsyncProp=function(e){return!e.computed&&"Identifier"===e.key.type&&"async"===e.key.name&&(this.type===g.name||this.type===g.num||this.type===g.string||this.type===g.bracketL||this.type.keyword||9<=this.options.ecmaVersion&&this.type===g.star)&&!o.test(this.input.slice(this.lastTokEnd,this.start))},e.parseObj=function(e,t){var r=this.startNode(),i=!0,n={};for(r.properties=[],this.next();!this.eat(g.braceR);){if(i)i=!1;else if(this.expect(g.comma),5<=this.options.ecmaVersion&&this.afterTrailingComma(g.braceR))break;var s=this.parseProperty(e,t);e||this.checkPropClash(s,n,t),r.properties.push(s)}return this.finishNode(r,e?"ObjectPattern":"ObjectExpression")},e.parseProperty=function(e,t){var r,i,n,s,a=this.startNode();if(9<=this.options.ecmaVersion&&this.eat(g.ellipsis))return e?(a.argument=this.parseIdent(!1),this.type===g.comma&&this.raiseRecoverable(this.start,"Comma is not permitted after the rest element"),this.finishNode(a,"RestElement")):(a.argument=this.parseMaybeAssign(!1,t),this.type===g.comma&&t&&t.trailingComma<0&&(t.trailingComma=this.start),this.finishNode(a,"SpreadElement"));6<=this.options.ecmaVersion&&(a.method=!1,a.shorthand=!1,(e||t)&&(n=this.start,s=this.startLoc),e||(r=this.eat(g.star)));var o=this.containsEsc;return this.parsePropertyName(a),!e&&!o&&8<=this.options.ecmaVersion&&!r&&this.isAsyncProp(a)?(i=!0,r=9<=this.options.ecmaVersion&&this.eat(g.star),this.parsePropertyName(a)):i=!1,this.parsePropertyValue(a,e,r,i,n,s,t,o),this.finishNode(a,"Property")},e.parseGetterSetter=function(e){e.kind=e.key.name,this.parsePropertyName(e),e.value=this.parseMethod(!1);var t="get"===e.kind?0:1;e.value.params.length!==t?(t=e.value.start,"get"===e.kind?this.raiseRecoverable(t,"getter should have no params"):this.raiseRecoverable(t,"setter should have exactly one param")):"set"===e.kind&&"RestElement"===e.value.params[0].type&&this.raiseRecoverable(e.value.params[0].start,"Setter cannot use rest params")},e.parsePropertyValue=function(e,t,r,i,n,s,a,o){(r||i)&&this.type===g.colon&&this.unexpected(),this.eat(g.colon)?(e.value=t?this.parseMaybeDefault(this.start,this.startLoc):this.parseMaybeAssign(!1,a),e.kind="init"):6<=this.options.ecmaVersion&&this.type===g.parenL?(t&&this.unexpected(),e.kind="init",e.method=!0,e.value=this.parseMethod(r,i)):t||o||!(5<=this.options.ecmaVersion)||e.computed||"Identifier"!==e.key.type||"get"!==e.key.name&&"set"!==e.key.name||this.type===g.comma||this.type===g.braceR||this.type===g.eq?6<=this.options.ecmaVersion&&!e.computed&&"Identifier"===e.key.type?((r||i)&&this.unexpected(),this.checkUnreserved(e.key),"await"!==e.key.name||this.awaitIdentPos||(this.awaitIdentPos=n),e.kind="init",t?e.value=this.parseMaybeDefault(n,s,this.copyNode(e.key)):this.type===g.eq&&a?(a.shorthandAssign<0&&(a.shorthandAssign=this.start),e.value=this.parseMaybeDefault(n,s,this.copyNode(e.key))):e.value=this.copyNode(e.key),e.shorthand=!0):this.unexpected():((r||i)&&this.unexpected(),this.parseGetterSetter(e))},e.parsePropertyName=function(e){if(6<=this.options.ecmaVersion){if(this.eat(g.bracketL))return e.computed=!0,e.key=this.parseMaybeAssign(),this.expect(g.bracketR),e.key;e.computed=!1}return e.key=this.type===g.num||this.type===g.string?this.parseExprAtom():this.parseIdent("never"!==this.options.allowReserved)},e.initFunction=function(e){e.id=null,6<=this.options.ecmaVersion&&(e.generator=e.expression=!1),8<=this.options.ecmaVersion&&(e.async=!1)},e.parseMethod=function(e,t,r){var i=this.startNode(),n=this.yieldPos,s=this.awaitPos,a=this.awaitIdentPos;return this.initFunction(i),6<=this.options.ecmaVersion&&(i.generator=e),8<=this.options.ecmaVersion&&(i.async=!!t),this.yieldPos=0,this.awaitPos=0,this.awaitIdentPos=0,this.enterScope(64|Te(t,i.generator)|(r?128:0)),this.expect(g.parenL),i.params=this.parseBindingList(g.parenR,!1,8<=this.options.ecmaVersion),this.checkYieldAwaitInDefaultParams(),this.parseFunctionBody(i,!1,!0,!1),this.yieldPos=n,this.awaitPos=s,this.awaitIdentPos=a,this.finishNode(i,"FunctionExpression")},e.parseArrowExpression=function(e,t,r,i){var n=this.yieldPos,s=this.awaitPos,a=this.awaitIdentPos;return this.enterScope(16|Te(r,!1)),this.initFunction(e),8<=this.options.ecmaVersion&&(e.async=!!r),this.yieldPos=0,this.awaitPos=0,this.awaitIdentPos=0,e.params=this.toAssignableList(t,!0),this.parseFunctionBody(e,!0,!1,i),this.yieldPos=n,this.awaitPos=s,this.awaitIdentPos=a,this.finishNode(e,"ArrowFunctionExpression")},e.parseFunctionBody=function(e,t,r,i){var n=t&&this.type!==g.braceL,s=this.strict,a=!1;n?(e.body=this.parseMaybeAssign(i),e.expression=!0,this.checkParams(e,!1)):(n=7<=this.options.ecmaVersion&&!this.isSimpleParamList(e.params),s&&!n||(a=this.strictDirective(this.end))&&n&&this.raiseRecoverable(e.start,"Illegal 'use strict' directive in function with non-simple parameter list"),i=this.labels,this.labels=[],a&&(this.strict=!0),this.checkParams(e,!s&&!a&&!t&&!r&&this.isSimpleParamList(e.params)),this.strict&&e.id&&this.checkLValSimple(e.id,5),e.body=this.parseBlock(!1,void 0,a&&!s),e.expression=!1,this.adaptDirectivePrologue(e.body.body),this.labels=i),this.exitScope()},e.isSimpleParamList=function(e){for(var t=0,r=e;t<r.length;t+=1)if("Identifier"!==r[t].type)return!1;return!0},e.checkParams=function(e,t){for(var r=Object.create(null),i=0,n=e.params;i<n.length;i+=1){var s=n[i];this.checkLValInnerPattern(s,1,t?null:r)}},e.parseExprList=function(e,t,r,i){for(var n=[],s=!0;!this.eat(e);){if(s)s=!1;else if(this.expect(g.comma),t&&this.afterTrailingComma(e))break;var a=void 0;r&&this.type===g.comma?a=null:this.type===g.ellipsis?(a=this.parseSpread(i),i&&this.type===g.comma&&i.trailingComma<0&&(i.trailingComma=this.start)):a=this.parseMaybeAssign(!1,i),n.push(a)}return n},e.checkUnreserved=function(e){var t=e.start,r=e.end,e=e.name;this.inGenerator&&"yield"===e&&this.raiseRecoverable(t,"Cannot use 'yield' as identifier inside a generator"),this.inAsync&&"await"===e&&this.raiseRecoverable(t,"Cannot use 'await' as identifier inside an async 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e.eat(42)||e.eat(43)||e.eat(63)||this.regexp_eatBracedQuantifier(e,t)},e.regexp_eatBracedQuantifier=function(e,t){var r=e.pos;if(e.eat(123)){var i,n=-1;if(this.regexp_eatDecimalDigits(e)&&(i=e.lastIntValue,e.eat(44)&&this.regexp_eatDecimalDigits(e)&&(n=e.lastIntValue),e.eat(125)))return-1!==n&&n<i&&!t&&e.raise("numbers out of order in {} quantifier"),!0;e.switchU&&!t&&e.raise("Incomplete quantifier"),e.pos=r}return!1},e.regexp_eatAtom=function(e){return this.regexp_eatPatternCharacters(e)||e.eat(46)||this.regexp_eatReverseSolidusAtomEscape(e)||this.regexp_eatCharacterClass(e)||this.regexp_eatUncapturingGroup(e)||this.regexp_eatCapturingGroup(e)},e.regexp_eatReverseSolidusAtomEscape=function(e){var t=e.pos;if(e.eat(92)){if(this.regexp_eatAtomEscape(e))return!0;e.pos=t}return!1},e.regexp_eatUncapturingGroup=function(e){var t=e.pos;if(e.eat(40)){if(e.eat(63)&&e.eat(58)){if(this.regexp_disjunction(e),e.eat(41))return!0;e.raise("Unterminated group")}e.pos=t}return!1},e.regexp_eatCapturingGroup=function(e){if(e.eat(40)){if(9<=this.options.ecmaVersion?this.regexp_groupSpecifier(e):63===e.current()&&e.raise("Invalid group"),this.regexp_disjunction(e),e.eat(41))return e.numCapturingParens+=1,!0;e.raise("Unterminated group")}return!1},e.regexp_eatExtendedAtom=function(e){return e.eat(46)||this.regexp_eatReverseSolidusAtomEscape(e)||this.regexp_eatCharacterClass(e)||this.regexp_eatUncapturingGroup(e)||this.regexp_eatCapturingGroup(e)||this.regexp_eatInvalidBracedQuantifier(e)||this.regexp_eatExtendedPatternCharacter(e)},e.regexp_eatInvalidBracedQuantifier=function(e){return this.regexp_eatBracedQuantifier(e,!0)&&e.raise("Nothing to repeat"),!1},e.regexp_eatSyntaxCharacter=function(e){var t=e.current();return!!et(t)&&(e.lastIntValue=t,e.advance(),!0)},e.regexp_eatPatternCharacters=function(e){for(var t,r=e.pos;-1!==(t=e.current())&&!et(t);)e.advance();return e.pos!==r},e.regexp_eatExtendedPatternCharacter=function(e){var t=e.current();return!(-1===t||36===t||40<=t&&t<=43||46===t||63===t||91===t||94===t||124===t||(e.advance(),0))},e.regexp_groupSpecifier=function(e){e.eat(63)&&(this.regexp_eatGroupName(e)?(-1!==e.groupNames.indexOf(e.lastStringValue)&&e.raise("Duplicate capture group name"),e.groupNames.push(e.lastStringValue)):e.raise("Invalid group"))},e.regexp_eatGroupName=function(e){if(e.lastStringValue="",e.eat(60)){if(this.regexp_eatRegExpIdentifierName(e)&&e.eat(62))return!0;e.raise("Invalid capture group name")}return!1},e.regexp_eatRegExpIdentifierName=function(e){if(e.lastStringValue="",this.regexp_eatRegExpIdentifierStart(e)){for(e.lastStringValue+=Se(e.lastIntValue);this.regexp_eatRegExpIdentifierPart(e);)e.lastStringValue+=Se(e.lastIntValue);return!0}return!1},e.regexp_eatRegExpIdentifierStart=function(e){var t=e.pos,r=11<=this.options.ecmaVersion,i=e.current(r);return e.advance(r),92===i&&this.regexp_eatRegExpUnicodeEscapeSequence(e,r)&&(i=e.lastIntValue),a(r=i,!0)||36===r||95===r?(e.lastIntValue=i,!0):(e.pos=t,!1)},e.regexp_eatRegExpIdentifierPart=function(e){var t=e.pos,r=11<=this.options.ecmaVersion,i=e.current(r);return e.advance(r),92===i&&this.regexp_eatRegExpUnicodeEscapeSequence(e,r)&&(i=e.lastIntValue),pe(r=i,!0)||36===r||95===r||8204===r||8205===r?(e.lastIntValue=i,!0):(e.pos=t,!1)},e.regexp_eatAtomEscape=function(e){return!!(this.regexp_eatBackReference(e)||this.regexp_eatCharacterClassEscape(e)||this.regexp_eatCharacterEscape(e)||e.switchN&&this.regexp_eatKGroupName(e))||(e.switchU&&(99===e.current()&&e.raise("Invalid unicode escape"),e.raise("Invalid escape")),!1)},e.regexp_eatBackReference=function(e){var t=e.pos;if(this.regexp_eatDecimalEscape(e)){var r=e.lastIntValue;if(e.switchU)return r>e.maxBackReference&&(e.maxBackReference=r),!0;if(r<=e.numCapturingParens)return!0;e.pos=t}return!1},e.regexp_eatKGroupName=function(e){if(e.eat(107)){if(this.regexp_eatGroupName(e))return e.backReferenceNames.push(e.lastStringValue),!0;e.raise("Invalid named reference")}return!1},e.regexp_eatCharacterEscape=function(e){return this.regexp_eatControlEscape(e)||this.regexp_eatCControlLetter(e)||this.regexp_eatZero(e)||this.regexp_eatHexEscapeSequence(e)||this.regexp_eatRegExpUnicodeEscapeSequence(e,!1)||!e.switchU&&this.regexp_eatLegacyOctalEscapeSequence(e)||this.regexp_eatIdentityEscape(e)},e.regexp_eatCControlLetter=function(e){var t=e.pos;if(e.eat(99)){if(this.regexp_eatControlLetter(e))return!0;e.pos=t}return!1},e.regexp_eatZero=function(e){return 48===e.current()&&!it(e.lookahead())&&(e.lastIntValue=0,e.advance(),!0)},e.regexp_eatControlEscape=function(e){var t=e.current();return 116===t?(e.lastIntValue=9,e.advance(),!0):110===t?(e.lastIntValue=10,e.advance(),!0):118===t?(e.lastIntValue=11,e.advance(),!0):102===t?(e.lastIntValue=12,e.advance(),!0):114===t&&(e.lastIntValue=13,e.advance(),!0)},e.regexp_eatControlLetter=function(e){var t=e.current();return!!tt(t)&&(e.lastIntValue=t%32,e.advance(),!0)},e.regexp_eatRegExpUnicodeEscapeSequence=function(e,t){var r=e.pos,t=(t=void 0===t?!1:t)||e.switchU;if(e.eat(117)){if(this.regexp_eatFixedHexDigits(e,4)){var i=e.lastIntValue;if(t&&55296<=i&&i<=56319){var n=e.pos;if(e.eat(92)&&e.eat(117)&&this.regexp_eatFixedHexDigits(e,4)){var s=e.lastIntValue;if(56320<=s&&s<=57343)return e.lastIntValue=1024*(i-55296)+(s-56320)+65536,!0}e.pos=n,e.lastIntValue=i}return!0}if(t&&e.eat(123)&&this.regexp_eatHexDigits(e)&&e.eat(125)&&0<=(s=e.lastIntValue)&&s<=1114111)return!0;t&&e.raise("Invalid unicode escape"),e.pos=r}return!1},e.regexp_eatIdentityEscape=function(e){var t;return e.switchU?!!this.regexp_eatSyntaxCharacter(e)||!!e.eat(47)&&(e.lastIntValue=47,!0):!(99===(t=e.current())||e.switchN&&107===t||(e.lastIntValue=t,e.advance(),0))},e.regexp_eatDecimalEscape=function(e){e.lastIntValue=0;var t=e.current();if(49<=t&&t<=57){for(;e.lastIntValue=10*e.lastIntValue+(t-48),e.advance(),48<=(t=e.current())&&t<=57;);return!0}return!1};function rt(e){return tt(e)||95===e}function it(e){return 48<=e&&e<=57}function nt(e){return 48<=e&&e<=57||65<=e&&e<=70||97<=e&&e<=102}function st(e){return 65<=e&&e<=70?e-65+10:97<=e&&e<=102?e-97+10:e-48}function at(e){return 48<=e&&e<=55}e.regexp_eatCharacterClassEscape=function(e){var t=e.current();if(100===(i=t)||68===i||115===i||83===i||119===i||87===i)return e.lastIntValue=-1,e.advance(),1;var r,i=!1;if(e.switchU&&9<=this.options.ecmaVersion&&((i=80===t)||112===t)){if(e.lastIntValue=-1,e.advance(),e.eat(123)&&(r=this.regexp_eatUnicodePropertyValueExpression(e))&&e.eat(125))return i&&2===r&&e.raise("Invalid property name"),r;e.raise("Invalid property name")}return 0},e.regexp_eatUnicodePropertyValueExpression=function(e){var t=e.pos;if(this.regexp_eatUnicodePropertyName(e)&&e.eat(61)){var r,i=e.lastStringValue;if(this.regexp_eatUnicodePropertyValue(e))return r=e.lastStringValue,this.regexp_validateUnicodePropertyNameAndValue(e,i,r),1}return e.pos=t,this.regexp_eatLoneUnicodePropertyNameOrValue(e)?(i=e.lastStringValue,this.regexp_validateUnicodePropertyNameOrValue(e,i)):0},e.regexp_validateUnicodePropertyNameAndValue=function(e,t,r){be(e.unicodeProperties.nonBinary,t)||e.raise("Invalid property name"),e.unicodeProperties.nonBinary[t].test(r)||e.raise("Invalid property value")},e.regexp_validateUnicodePropertyNameOrValue=function(e,t){return e.unicodeProperties.binary.test(t)?1:e.switchV&&e.unicodeProperties.binaryOfStrings.test(t)?2:void e.raise("Invalid property name")},e.regexp_eatUnicodePropertyName=function(e){var t;for(e.lastStringValue="";rt(t=e.current());)e.lastStringValue+=Se(t),e.advance();return""!==e.lastStringValue},e.regexp_eatUnicodePropertyValue=function(e){var t,r;for(e.lastStringValue="";rt(r=t=e.current())||it(r);)e.lastStringValue+=Se(t),e.advance();return""!==e.lastStringValue},e.regexp_eatLoneUnicodePropertyNameOrValue=function(e){return this.regexp_eatUnicodePropertyValue(e)},e.regexp_eatCharacterClass=function(e){var t,r;return!!e.eat(91)&&(t=e.eat(94),r=this.regexp_classContents(e),e.eat(93)||e.raise("Unterminated character class"),t&&2===r&&e.raise("Negated character class may contain strings"),!0)},e.regexp_classContents=function(e){if(93!==e.current()){if(e.switchV)return this.regexp_classSetExpression(e);this.regexp_nonEmptyClassRanges(e)}return 1},e.regexp_nonEmptyClassRanges=function(e){for(;this.regexp_eatClassAtom(e);){var t,r=e.lastIntValue;e.eat(45)&&this.regexp_eatClassAtom(e)&&(t=e.lastIntValue,!e.switchU||-1!==r&&-1!==t||e.raise("Invalid character class"),-1!==r)&&-1!==t&&t<r&&e.raise("Range out of order in character class")}},e.regexp_eatClassAtom=function(e){var t=e.pos;if(e.eat(92)){if(this.regexp_eatClassEscape(e))return!0;e.switchU&&(99!==(r=e.current())&&!at(r)||e.raise("Invalid class escape"),e.raise("Invalid escape")),e.pos=t}var r=e.current();return 93!==r&&(e.lastIntValue=r,e.advance(),!0)},e.regexp_eatClassEscape=function(e){var t=e.pos;if(e.eat(98))return e.lastIntValue=8,!0;if(e.switchU&&e.eat(45))return e.lastIntValue=45,!0;if(!e.switchU&&e.eat(99)){if(this.regexp_eatClassControlLetter(e))return!0;e.pos=t}return this.regexp_eatCharacterClassEscape(e)||this.regexp_eatCharacterEscape(e)},e.regexp_classSetExpression=function(e){var t,r=1;if(!this.regexp_eatClassSetRange(e))if(t=this.regexp_eatClassSetOperand(e)){2===t&&(r=2);for(var i=e.pos;e.eatChars([38,38]);)38!==e.current()&&(t=this.regexp_eatClassSetOperand(e))?2!==t&&(r=1):e.raise("Invalid character in character class");if(i!==e.pos)return r;for(;e.eatChars([45,45]);)this.regexp_eatClassSetOperand(e)||e.raise("Invalid character in character class");if(i!==e.pos)return r}else e.raise("Invalid character in character class");for(;;)if(!this.regexp_eatClassSetRange(e)){if(!(t=this.regexp_eatClassSetOperand(e)))return r;2===t&&(r=2)}},e.regexp_eatClassSetRange=function(e){var t=e.pos;if(this.regexp_eatClassSetCharacter(e)){var r,i=e.lastIntValue;if(e.eat(45)&&this.regexp_eatClassSetCharacter(e))return r=e.lastIntValue,-1!==i&&-1!==r&&r<i&&e.raise("Range out of order in character class"),!0;e.pos=t}return!1},e.regexp_eatClassSetOperand=function(e){return this.regexp_eatClassSetCharacter(e)?1:this.regexp_eatClassStringDisjunction(e)||this.regexp_eatNestedClass(e)},e.regexp_eatNestedClass=function(e){var t=e.pos;if(e.eat(91)){var r=e.eat(94),i=this.regexp_classContents(e);if(e.eat(93))return r&&2===i&&e.raise("Negated character class may contain strings"),i;e.pos=t}if(e.eat(92)){r=this.regexp_eatCharacterClassEscape(e);if(r)return r;e.pos=t}return null},e.regexp_eatClassStringDisjunction=function(e){var t=e.pos;if(e.eatChars([92,113])){if(e.eat(123)){var r=this.regexp_classStringDisjunctionContents(e);if(e.eat(125))return r}else e.raise("Invalid escape");e.pos=t}return null},e.regexp_classStringDisjunctionContents=function(e){for(var t=this.regexp_classString(e);e.eat(124);)2===this.regexp_classString(e)&&(t=2);return t},e.regexp_classString=function(e){for(var t=0;this.regexp_eatClassSetCharacter(e);)t++;return 1===t?1:2},e.regexp_eatClassSetCharacter=function(e){var t,r=e.pos;return e.eat(92)?!(!this.regexp_eatCharacterEscape(e)&&!this.regexp_eatClassSetReservedPunctuator(e)&&(e.eat(98)?(e.lastIntValue=8,0):(e.pos=r,1))):!((r=e.current())<0||r===e.lookahead()&&(33===(t=r)||35<=t&&t<=38||42<=t&&t<=44||46===t||58<=t&&t<=64||94===t||96===t||126===t)||40===(t=r)||41===t||45===t||47===t||91<=t&&t<=93||123<=t&&t<=125||(e.advance(),e.lastIntValue=r,0))},e.regexp_eatClassSetReservedPunctuator=function(e){var t,r=e.current();return(33===(t=r)||35===t||37===t||38===t||44===t||45===t||58<=t&&t<=62||64===t||96===t||126===t)&&(e.lastIntValue=r,e.advance(),!0)},e.regexp_eatClassControlLetter=function(e){var t=e.current();return!(!it(t)&&95!==t||(e.lastIntValue=t%32,e.advance(),0))},e.regexp_eatHexEscapeSequence=function(e){var t=e.pos;if(e.eat(120)){if(this.regexp_eatFixedHexDigits(e,2))return!0;e.switchU&&e.raise("Invalid escape"),e.pos=t}return!1},e.regexp_eatDecimalDigits=function(e){var t,r=e.pos;for(e.lastIntValue=0;it(t=e.current());)e.lastIntValue=10*e.lastIntValue+(t-48),e.advance();return e.pos!==r},e.regexp_eatHexDigits=function(e){var t,r=e.pos;for(e.lastIntValue=0;nt(t=e.current());)e.lastIntValue=16*e.lastIntValue+st(t),e.advance();return e.pos!==r},e.regexp_eatLegacyOctalEscapeSequence=function(e){var t,r;return!!this.regexp_eatOctalDigit(e)&&(t=e.lastIntValue,this.regexp_eatOctalDigit(e)?(r=e.lastIntValue,t<=3&&this.regexp_eatOctalDigit(e)?e.lastIntValue=64*t+8*r+e.lastIntValue:e.lastIntValue=8*t+r):e.lastIntValue=t,!0)},e.regexp_eatOctalDigit=function(e){var t=e.current();return at(t)?(e.lastIntValue=t-48,e.advance(),!0):(e.lastIntValue=0,!1)},e.regexp_eatFixedHexDigits=function(e,t){for(var r=e.pos,i=e.lastIntValue=0;i<t;++i){var n=e.current();if(!nt(n))return e.pos=r,!1;e.lastIntValue=16*e.lastIntValue+st(n),e.advance()}return!0};function ot(e){this.type=e.type,this.value=e.value,this.start=e.start,this.end=e.end,e.options.locations&&(this.loc=new Ee(e,e.startLoc,e.endLoc)),e.options.ranges&&(this.range=[e.start,e.end])}d=h.prototype;function ct(e){return"function"!=typeof BigInt?null:BigInt(e.replace(/_/g,""))}d.next=function(e){!e&&this.type.keyword&&this.containsEsc&&this.raiseRecoverable(this.start,"Escape sequence in keyword "+this.type.keyword),this.options.onToken&&this.options.onToken(new ot(this)),this.lastTokEnd=this.end,this.lastTokStart=this.start,this.lastTokEndLoc=this.endLoc,this.lastTokStartLoc=this.startLoc,this.nextToken()},d.getToken=function(){return this.next(),new ot(this)},"undefined"!=typeof Symbol&&(d[Symbol.iterator]=function(){var t=this;return{next:function(){var e=t.getToken();return{done:e.type===g.eof,value:e}}}}),d.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(g.eof):e.override?e.override(this):void this.readToken(this.fullCharCodeAtPos())},d.readToken=function(e){return a(e,6<=this.options.ecmaVersion)||92===e?this.readWord():this.getTokenFromCode(e)},d.fullCharCodeAtPos=function(){var e,t=this.input.charCodeAt(this.pos);return t<=55295||56320<=t||(e=this.input.charCodeAt(this.pos+1))<=56319||57344<=e?t:(t<<10)+e-56613888},d.skipBlockComment=function(){var e=this.options.onComment&&this.curPosition(),t=this.pos,r=this.input.indexOf("*/",this.pos+=2);if(-1===r&&this.raise(this.pos-2,"Unterminated comment"),this.pos=r+2,this.options.locations)for(var i,n=t;-1<(i=me(this.input,n,this.pos));)++this.curLine,n=this.lineStart=i;this.options.onComment&&this.options.onComment(!0,this.input.slice(t+2,r),t,this.pos,e,this.curPosition())},d.skipLineComment=function(e){for(var t=this.pos,r=this.options.onComment&&this.curPosition(),i=this.input.charCodeAt(this.pos+=e);this.pos<this.input.length&&!fe(i);)i=this.input.charCodeAt(++this.pos);this.options.onComment&&this.options.onComment(!1,this.input.slice(t+e,this.pos),t,this.pos,r,this.curPosition())},d.skipSpace=function(){e:for(;this.pos<this.input.length;){var e=this.input.charCodeAt(this.pos);switch(e){case 32:case 160:++this.pos;break;case 13:10===this.input.charCodeAt(this.pos+1)&&++this.pos;case 10:case 8232:case 8233:++this.pos,this.options.locations&&(++this.curLine,this.lineStart=this.pos);break;case 47:switch(this.input.charCodeAt(this.pos+1)){case 42:this.skipBlockComment();break;case 47:this.skipLineComment(2);break;default:break e}break;default:if(!(8<e&&e<14||5760<=e&&ye.test(String.fromCharCode(e))))break e;++this.pos}}},d.finishToken=function(e,t){this.end=this.pos,this.options.locations&&(this.endLoc=this.curPosition());var r=this.type;this.type=e,this.value=t,this.updateContext(r)},d.readToken_dot=function(){var e,t=this.input.charCodeAt(this.pos+1);return 48<=t&&t<=57?this.readNumber(!0):(e=this.input.charCodeAt(this.pos+2),6<=this.options.ecmaVersion&&46===t&&46===e?(this.pos+=3,this.finishToken(g.ellipsis)):(++this.pos,this.finishToken(g.dot)))},d.readToken_slash=function(){var e=this.input.charCodeAt(this.pos+1);return this.exprAllowed?(++this.pos,this.readRegexp()):61===e?this.finishOp(g.assign,2):this.finishOp(g.slash,1)},d.readToken_mult_modulo_exp=function(e){var t=this.input.charCodeAt(this.pos+1),r=1,i=42===e?g.star:g.modulo;return 7<=this.options.ecmaVersion&&42===e&&42===t&&(++r,i=g.starstar,t=this.input.charCodeAt(this.pos+2)),61===t?this.finishOp(g.assign,r+1):this.finishOp(i,r)},d.readToken_pipe_amp=function(e){var t=this.input.charCodeAt(this.pos+1);if(t!==e)return 61===t?this.finishOp(g.assign,2):this.finishOp(124===e?g.bitwiseOR:g.bitwiseAND,1);if(12<=this.options.ecmaVersion&&61===this.input.charCodeAt(this.pos+2))return this.finishOp(g.assign,3);return this.finishOp(124===e?g.logicalOR:g.logicalAND,2)},d.readToken_caret=function(){return 61===this.input.charCodeAt(this.pos+1)?this.finishOp(g.assign,2):this.finishOp(g.bitwiseXOR,1)},d.readToken_plus_min=function(e){var t=this.input.charCodeAt(this.pos+1);return t===e?45!==t||this.inModule||62!==this.input.charCodeAt(this.pos+2)||0!==this.lastTokEnd&&!o.test(this.input.slice(this.lastTokEnd,this.pos))?this.finishOp(g.incDec,2):(this.skipLineComment(3),this.skipSpace(),this.nextToken()):61===t?this.finishOp(g.assign,2):this.finishOp(g.plusMin,1)},d.readToken_lt_gt=function(e){var t=this.input.charCodeAt(this.pos+1),r=1;return t===e?(r=62===e&&62===this.input.charCodeAt(this.pos+2)?3:2,61===this.input.charCodeAt(this.pos+r)?this.finishOp(g.assign,r+1):this.finishOp(g.bitShift,r)):33!==t||60!==e||this.inModule||45!==this.input.charCodeAt(this.pos+2)||45!==this.input.charCodeAt(this.pos+3)?this.finishOp(g.relational,r=61===t?2:r):(this.skipLineComment(4),this.skipSpace(),this.nextToken())},d.readToken_eq_excl=function(e){var t=this.input.charCodeAt(this.pos+1);return 61===t?this.finishOp(g.equality,61===this.input.charCodeAt(this.pos+2)?3:2):61===e&&62===t&&6<=this.options.ecmaVersion?(this.pos+=2,this.finishToken(g.arrow)):this.finishOp(61===e?g.eq:g.prefix,1)},d.readToken_question=function(){var e=this.options.ecmaVersion;if(11<=e){var t=this.input.charCodeAt(this.pos+1);if(46===t){var r=this.input.charCodeAt(this.pos+2);if(r<48||57<r)return this.finishOp(g.questionDot,2)}if(63===t){if(12<=e)if(61===this.input.charCodeAt(this.pos+2))return this.finishOp(g.assign,3);return this.finishOp(g.coalesce,2)}}return this.finishOp(g.question,1)},d.readToken_numberSign=function(){var e=this.options.ecmaVersion,t=35;if(13<=e&&(++this.pos,a(t=this.fullCharCodeAtPos(),!0)||92===t))return this.finishToken(g.privateId,this.readWord1());this.raise(this.pos,"Unexpected character '"+Se(t)+"'")},d.getTokenFromCode=function(e){switch(e){case 46:return this.readToken_dot();case 40:return++this.pos,this.finishToken(g.parenL);case 41:return++this.pos,this.finishToken(g.parenR);case 59:return++this.pos,this.finishToken(g.semi);case 44:return++this.pos,this.finishToken(g.comma);case 91:return++this.pos,this.finishToken(g.bracketL);case 93:return++this.pos,this.finishToken(g.bracketR);case 123:return++this.pos,this.finishToken(g.braceL);case 125:return++this.pos,this.finishToken(g.braceR);case 58:return++this.pos,this.finishToken(g.colon);case 96:if(this.options.ecmaVersion<6)break;return++this.pos,this.finishToken(g.backQuote);case 48:var t=this.input.charCodeAt(this.pos+1);if(120===t||88===t)return this.readRadixNumber(16);if(6<=this.options.ecmaVersion){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 63:return this.readToken_question();case 126:return this.finishOp(g.prefix,1);case 35:return this.readToken_numberSign()}this.raise(this.pos,"Unexpected character '"+Se(e)+"'")},d.finishOp=function(e,t){var r=this.input.slice(this.pos,this.pos+t);return this.pos+=t,this.finishToken(e,r)},d.readRegexp=function(){for(var e,t,r=this.pos;;){this.pos>=this.input.length&&this.raise(r,"Unterminated regular expression");var i=this.input.charAt(this.pos);if(o.test(i)&&this.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}++this.pos}var n=this.input.slice(r,this.pos),s=(++this.pos,this.pos),a=this.readWord1(),s=(this.containsEsc&&this.unexpected(s),this.regexpState||(this.regexpState=new v(this))),s=(s.reset(r,n,a),this.validateRegExpFlags(s),this.validateRegExpPattern(s),null);try{s=new RegExp(n,a)}catch(e){}return this.finishToken(g.regexp,{pattern:n,flags:a,value:s})},d.readInt=function(e,t,r){for(var i=12<=this.options.ecmaVersion&&void 0===t,n=r&&48===this.input.charCodeAt(this.pos),r=this.pos,s=0,a=0,o=0,c=null==t?1/0:t;o<c;++o,++this.pos){var h=this.input.charCodeAt(this.pos),l=void 0;if(i&&95===h)n&&this.raiseRecoverable(this.pos,"Numeric separator is not allowed in legacy octal numeric literals"),95===a&&this.raiseRecoverable(this.pos,"Numeric separator must be exactly one underscore"),0===o&&this.raiseRecoverable(this.pos,"Numeric separator is not allowed at the first of digits"),a=h;else{if(e<=(l=97<=h?h-97+10:65<=h?h-65+10:48<=h&&h<=57?h-48:1/0))break;a=h,s=s*e+l}}return i&&95===a&&this.raiseRecoverable(this.pos-1,"Numeric separator is not allowed at the last of digits"),this.pos===r||null!=t&&this.pos-r!==t?null:s},d.readRadixNumber=function(e){var t=this.pos,r=(this.pos+=2,this.readInt(e));return null==r&&this.raise(this.start+2,"Expected number in radix "+e),11<=this.options.ecmaVersion&&110===this.input.charCodeAt(this.pos)?(r=ct(this.input.slice(t,this.pos)),++this.pos):a(this.fullCharCodeAtPos())&&this.raise(this.pos,"Identifier directly after number"),this.finishToken(g.num,r)},d.readNumber=function(e){var t=this.pos,r=(e||null!==this.readInt(10,void 0,!0)||this.raise(t,"Invalid number"),2<=this.pos-t&&48===this.input.charCodeAt(t)),i=(r&&this.strict&&this.raise(t,"Invalid number"),this.input.charCodeAt(this.pos));if(!r&&!e&&11<=this.options.ecmaVersion&&110===i)return e=ct(this.input.slice(t,this.pos)),++this.pos,a(this.fullCharCodeAtPos())&&this.raise(this.pos,"Identifier directly after number"),this.finishToken(g.num,e);r&&/[89]/.test(this.input.slice(t,this.pos))&&(r=!1),46!==i||r||(++this.pos,this.readInt(10),i=this.input.charCodeAt(this.pos)),69!==i&&101!==i||r||(43!==(i=this.input.charCodeAt(++this.pos))&&45!==i||++this.pos,null===this.readInt(10)&&this.raise(t,"Invalid number")),a(this.fullCharCodeAtPos())&&this.raise(this.pos,"Identifier directly after number");e=this.input.slice(t,this.pos);i=r?parseInt(e,8):parseFloat(e.replace(/_/g,""));return this.finishToken(g.num,i)},d.readCodePoint=function(){var e,t;return 123===this.input.charCodeAt(this.pos)?(this.options.ecmaVersion<6&&this.unexpected(),e=++this.pos,t=this.readHexChar(this.input.indexOf("}",this.pos)-this.pos),++this.pos,1114111<t&&this.invalidStringToken(e,"Code point out of bounds")):t=this.readHexChar(4),t},d.readString=function(e){for(var t="",r=++this.pos;;){this.pos>=this.input.length&&this.raise(this.start,"Unterminated string constant");var i=this.input.charCodeAt(this.pos);if(i===e)break;92===i?(t=(t+=this.input.slice(r,this.pos))+this.readEscapedChar(!1),r=this.pos):8232===i||8233===i?(this.options.ecmaVersion<10&&this.raise(this.start,"Unterminated string constant"),++this.pos,this.options.locations&&(this.curLine++,this.lineStart=this.pos)):(fe(i)&&this.raise(this.start,"Unterminated string constant"),++this.pos)}return t+=this.input.slice(r,this.pos++),this.finishToken(g.string,t)};var ht={};d.tryReadTemplateToken=function(){this.inTemplateElement=!0;try{this.readTmplToken()}catch(e){if(e!==ht)throw e;this.readInvalidTemplateToken()}this.inTemplateElement=!1},d.invalidStringToken=function(e,t){if(this.inTemplateElement&&9<=this.options.ecmaVersion)throw ht;this.raise(e,t)},d.readTmplToken=function(){for(var e="",t=this.pos;;){this.pos>=this.input.length&&this.raise(this.start,"Unterminated template");var r=this.input.charCodeAt(this.pos);if(96===r||36===r&&123===this.input.charCodeAt(this.pos+1))return this.pos!==this.start||this.type!==g.template&&this.type!==g.invalidTemplate?(e+=this.input.slice(t,this.pos),this.finishToken(g.template,e)):36===r?(this.pos+=2,this.finishToken(g.dollarBraceL)):(++this.pos,this.finishToken(g.backQuote));if(92===r)e=(e+=this.input.slice(t,this.pos))+this.readEscapedChar(!0),t=this.pos;else if(fe(r)){switch(e+=this.input.slice(t,this.pos),++this.pos,r){case 13:10===this.input.charCodeAt(this.pos)&&++this.pos;case 10:e+="\n";break;default:e+=String.fromCharCode(r)}this.options.locations&&(++this.curLine,this.lineStart=this.pos),t=this.pos}else++this.pos}},d.readInvalidTemplateToken=function(){for(;this.pos<this.input.length;this.pos++)switch(this.input[this.pos]){case"\\":++this.pos;break;case"$":if("{"!==this.input[this.pos+1])break;case"`":return this.finishToken(g.invalidTemplate,this.input.slice(this.start,this.pos))}this.raise(this.start,"Unterminated template")},d.readEscapedChar=function(e){var t,r,i=this.input.charCodeAt(++this.pos);switch(++this.pos,i){case 110:return"\n";case 114:return"\r";case 120:return String.fromCharCode(this.readHexChar(2));case 117:return Se(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),"";case 56:case 57:this.strict&&this.invalidStringToken(this.pos-1,"Invalid escape sequence"),e&&(t=this.pos-1,this.invalidStringToken(t,"Invalid escape sequence in template string"));default:return 48<=i&&i<=55?(t=this.input.substr(this.pos-1,3).match(/^[0-7]+/)[0],255<(r=parseInt(t,8))&&(t=t.slice(0,-1),r=parseInt(t,8)),this.pos+=t.length-1,i=this.input.charCodeAt(this.pos),"0"===t&&56!==i&&57!==i||!this.strict&&!e||this.invalidStringToken(this.pos-1-t.length,e?"Octal literal in template string":"Octal literal in strict mode"),String.fromCharCode(r)):fe(i)?"":String.fromCharCode(i)}},d.readHexChar=function(e){var t=this.pos,e=this.readInt(16,e);return null===e&&this.invalidStringToken(t,"Bad character escape sequence"),e},d.readWord1=function(){for(var e="",t=!(this.containsEsc=!1),r=this.pos,i=6<=this.options.ecmaVersion;this.pos<this.input.length;){var n=this.fullCharCodeAtPos();if(pe(n,i))this.pos+=n<=65535?1:2;else{if(92!==n)break;this.containsEsc=!0,e+=this.input.slice(r,this.pos);var n=this.pos,s=(117!==this.input.charCodeAt(++this.pos)&&this.invalidStringToken(this.pos,"Expecting Unicode escape sequence \\uXXXX"),++this.pos,this.readCodePoint());(t?a:pe)(s,i)||this.invalidStringToken(n,"Invalid Unicode escape"),e+=Se(s),r=this.pos}t=!1}return e+this.input.slice(r,this.pos)},d.readWord=function(){var e=this.readWord1(),t=g.name;return this.keywords.test(e)&&(t=de[e]),this.finishToken(t,e)};function lt(e,t){return h.parse(e,t)}h.acorn={Parser:h,version:"8.11.3",defaultOptions:Ae,Position:_e,SourceLocation:Ee,getLineInfo:Ie,Node:Ue,TokenType:r,tokTypes:g,keywordTypes:de,TokContext:l,tokContexts:u,isIdentifierChar:pe,isIdentifierStart:a,Token:ot,isNewLine:fe,lineBreak:o,lineBreakG:t,nonASCIIwhitespace:ye};var ut={RES:void 0},b={RES:void 0},x={LABEL:void 0},w={LABEL:void 0},pt=p("super"),dt=p("supercall"),ft=p("noctor"),mt=p("clsctor"),yt=p("newtarget"),k=p("private"),S=p("noinit"),_=p("deadzone"),gt=p("import"),E=p("exports"),vt=(bt.prototype.get=function(){return this.value},bt.prototype.set=function(e){if("const"===this.kind)throw new TypeError("Assignment to constant variable");return this.value=e},bt);function bt(e,t){this.kind=e,this.value=t}wt.prototype.get=function(){return this.object[this.property]},wt.prototype.set=function(e){return this.object[this.property]=e,!0},wt.prototype.del=function(){return delete this.object[this.property]};var xt=wt;function wt(e,t){this.object=e,this.property=t}kt.prototype.global=function(){for(var e=this;e.parent;)e=e.parent;return e},kt.prototype.find=function(e){var t;return this.context[e]||(e in this.withContext?new xt(this.withContext,e):this.parent?this.parent.find(e):e in(t=this.global().find("window").get())?new xt(t,e):null)},kt.prototype.var=function(e,t){for(var r=this;r.parent&&!r.isolated;)r=r.parent;var i=r.context[e];if(i){if("var"!==i.kind)throw new SyntaxError("Identifier '"+e+"' has already been declared");t!==S&&i.set(t)}else r.context[e]=new vt("var",t===S?void 0:t);r.parent||(i=r.find("window").get(),t!==S&&f(i,e,{value:t,writable:!0,enumerable:!0}))},kt.prototype.let=function(e,t){var r=this.context[e];if(r&&r.get()!==_)throw new SyntaxError("Identifier '"+e+"' has already been declared");this.context[e]=new vt("let",t)},kt.prototype.const=function(e,t){var r=this.context[e];if(r&&r.get()!==_)throw new SyntaxError("Identifier '"+e+"' has already been declared");this.context[e]=new vt("const",t)},kt.prototype.func=function(e,t){var r=this.context[e];if(r&&"var"!==r.kind)throw new SyntaxError("Identifier '"+e+"' has already been declared");this.context[e]=new vt("var",t)},kt.prototype.with=function(e){Object.keys(e)&&(this.withContext=e)};var C=kt;function kt(e,t){void 0===e&&(e=null),void 0===t&&(t=!1),this.context=Z(null),this.withContext=Z(null),this.parent=e,this.isolated=t}function I(i,n){var s,a,o,c={label:0,sent:function(){if(1&o[0])throw o[1];return o[1]},trys:[],ops:[]},e={next:t(0),throw:t(1),return:t(2)};return"function"==typeof Symbol&&(e[Symbol.iterator]=function(){return this}),e;function t(r){return function(e){var t=[r,e];if(s)throw new TypeError("Generator is already executing.");for(;c;)try{if(s=1,a&&(o=2&t[0]?a.return:t[0]?a.throw||((o=a.return)&&o.call(a),0):a.next)&&!(o=o.call(a,t[1])).done)return o;switch(a=0,(t=o?[2&t[0],o.value]:t)[0]){case 0:case 1:o=t;break;case 4:return c.label++,{value:t[1],done:!1};case 5:c.label++,a=t[1],t=[0];continue;case 7:t=c.ops.pop(),c.trys.pop();continue;default:if(!(o=0<(o=c.trys).length&&o[o.length-1])&&(6===t[0]||2===t[0])){c=0;continue}if(3===t[0]&&(!o||t[1]>o[0]&&t[1]<o[3]))c.label=t[1];else if(6===t[0]&&c.label<o[1])c.label=o[1],o=t;else{if(!(o&&c.label<o[2])){o[2]&&c.ops.pop(),c.trys.pop();continue}c.label=o[2],c.ops.push(t)}}t=n.call(i,c)}catch(e){t=[6,e],a=0}finally{s=o=0}if(5&t[0])throw t[1];return{value:t[0]?t[1]:void 0,done:!0}}}}function A(e){var t="function"==typeof Symbol&&e[Symbol.iterator],r=0;return t?t.call(e):{next:function(){return{value:(e=e&&r>=e.length?void 0:e)&&e[r++],done:!e}}}}function St(){for(var e=[],t=0;t<arguments.length;t++)e=e.concat(function(e,t){var r="function"==typeof Symbol&&e[Symbol.iterator];if(!r)return e;var i,n,s=r.call(e),a=[];try{for(;(void 0===t||0<t--)&&!(i=s.next()).done;)a.push(i.value)}catch(e){n={error:e}}finally{try{i&&!i.done&&(r=s.return)&&r.call(s)}finally{if(n)throw n.error}}return a}(arguments[t]));return e}function _t(e,t,r){var i=(r=void 0===r?{}:r).getVar,i=void 0!==i&&i,r=r.throwErr,r=void 0===r||r;if("undefined"!==e.name){t=t.find(e.name);if(t){if(i)return t;i=t.get();if(i===_)throw new ReferenceError(e.name+" is not defined");return i}if(r)throw new ReferenceError(e.name+" is not defined")}}var Et=Object.freeze({__proto__:null,Identifier:_t});function Ct(e,t){return e.value}var It=Object.freeze({__proto__:null,Literal:Ct});function At(e,t,r){var i,n=(r=void 0===r?{}:r).getObj,n=void 0!==n&&n,r=r.getVar,r=void 0!==r&&r,s="Super"===e.object.type?Lt(e.object,t,{getProto:!0}):P(e.object,t);if(n)return s;n=!1;if(e.computed?i=P(e.property,t):"PrivateIdentifier"===e.property.type?(i=e.property.name,n=!0):i=e.property.name,n&&(s=s[k]),r)return n=Y(s,i),"Super"===e.object.type&&n?(a=t.find("this").get(),r=p(i),f(a,r,{set:n}),new xt(a,r)):new xt(s,i);n=X(s,i);if("Super"===e.object.type&&n){var a=t.find("this").get();if(!e.optional||null!=a)return n.call(a)}else if(!e.optional||null!=s)return s[i]}function Pt(e,t){return e.value.raw}function Lt(e,t,r){r=(r=void 0===r?{}:r).getProto,r=void 0!==r&&r,t=t.find(pt).get();return r?t.prototype:t}function Tt(e,t){e=P(e.argument,t);return"string"==typeof e?St(e):e}var Vt=Object.freeze({__proto__:null,ThisExpression:function(e,t){var r=t.find(dt);if(r&&!r.get())throw new ReferenceError("Must call super constructor in derived class before accessing 'this' or returning from derived constructor");return t.find("this").get()},ArrayExpression:function(e,t){for(var r=[],i=0;i<e.elements.length;i++){var n=e.elements[i];"SpreadElement"===n.type?r=r.concat(Tt(n,t)):r.push(P(n,t))}return r},ObjectExpression:function(e,t){for(var r={},i=0;i<e.properties.length;i++){var n,s,a,o=e.properties[i];"SpreadElement"===o.type?m(r,Tt(o,t)):(n=void 0,s=o.key,n=o.computed?P(s,t):"Identifier"===s.type?s.name:""+Ct(s),s=P(o.value,t),"init"===(o=o.kind)?r[n]=s:"get"===o?(a=U(r,n),f(r,n,{get:s,set:a&&a.set,enumerable:!0,configurable:!0})):(a=U(r,n),f(r,n,{get:a&&a.get,set:s,enumerable:!0,configurable:!0})))}return r},FunctionExpression:function(e,t){var r,i;return e.id&&e.id.name?(i=R(e,r=new C(t)),r.const(e.id.name,i),i):R(e,t)},UnaryExpression:function(e,t){var r=e.argument;switch(e.operator){case"+":return+P(r,t);case"-":return-P(r,t);case"!":return!P(r,t);case"~":return~P(r,t);case"void":return void P(r,t);case"typeof":return"Identifier"===r.type?typeof _t(r,t,{throwErr:!1}):typeof P(r,t);case"delete":if("MemberExpression"===r.type)return At(r,t,{getVar:!0}).del();if("Identifier"===r.type)throw new SyntaxError("Delete of an unqualified identifier in strict mode");return P(r,t),!0;default:throw new SyntaxError("Unexpected token "+e.operator)}},UpdateExpression:function(e,t){var r,i=e.argument;if("Identifier"===i.type)r=_t(i,t,{getVar:!0});else{if("MemberExpression"!==i.type)throw new SyntaxError("Unexpected token");r=At(i,t,{getVar:!0})}if(i=r.get(),"++"===e.operator)return r.set(i+1),e.prefix?r.get():i;if("--"===e.operator)return r.set(i-1),e.prefix?r.get():i;throw new SyntaxError("Unexpected token "+e.operator)},BinaryExpression:function(e,t){var r,i="PrivateIdentifier"===e.left.type?(r=e.left.name,(i=P(e.right,t))[k]):(r=P(e.left,t),P(e.right,t));switch(e.operator){case"==":return r==i;case"!=":return r!=i;case"===":return r===i;case"!==":return r!==i;case"<":return r<i;case"<=":return r<=i;case">":return i<r;case">=":return i<=r;case"<<":return r<<i;case">>":return r>>i;case">>>":return r>>>i;case"+":return 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diff --git a/package-lock.json b/package-lock.json
index 2e1e825..5bf55f8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "sval",
-  "version": "0.5.3",
+  "version": "0.5.4",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "sval",
-      "version": "0.5.3",
+      "version": "0.5.4",
       "license": "MIT",
       "dependencies": {
         "acorn": "^8.11.3"
diff --git a/package.json b/package.json
index e18bec1..e5bfa96 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "sval",
-  "version": "0.5.3",
+  "version": "0.5.4",
   "description": "A javascript interpreter written in javascript",
   "main": "dist/sval.js",
   "module": "dist/sval.js",