meriyah - npm Package Compare versions

Comparing version 0.3.1 to 0.3.2

dist/common.d.ts

@@ -11,3 +11,3 @@ import { Token } from './token';
     OptionsGlobalReturn = 32,
-    OptionsGlobalAwait = 64,
+    OptionsLexical = 64,
     OptionsParenthesized = 128,
@@ -56,7 +56,6 @@ OptionsWebCompat = 256,
     None = 0,
-    ArgumentList = 1,
+    ArgList = 1,
     Variable = 4,
     Let = 8,
-    Const = 16,
-    Class = 32
+    Const = 16
 }
@@ -95,2 +94,10 @@ export declare const enum BindingOrigin {
 }
+export declare const enum ScopeType {
+    None = 0,
+    For = 1,
+    Block = 2,
+    Catch = 4,
+    Switch = 8,
+    ArgList = 16
+}
 export declare const enum FunctionStatement {
@@ -119,2 +126,4 @@ Disallow = 0,
     nextCP: number;
+    exportedNames: any;
+    exportedBindings: any;
 }
@@ -121,0 +130,0 @@ export declare function consumeSemicolon(parser: ParserState, context: Context): void;

dist/estree.d.ts

@@ -97,3 +97,3 @@ interface _Node<T extends string> {
 export declare type Statement = ExpressionStatement | BlockStatement | EmptyStatement | DebuggerStatement | WithStatement | ReturnStatement | LabeledStatement | BreakStatement | ContinueStatement | Decorator | IfStatement | SwitchStatement | ThrowStatement | TryStatement | WhileStatement | DoWhileStatement | ForStatement | ForInStatement | ForOfStatement | Declaration;
-export declare type Expression = Identifier | Literal | RegExpLiteral | ThisExpression | ArrayExpression | ObjectExpression | FunctionExpression | UnaryExpression | UpdateExpression | BinaryExpression | AssignmentExpression | LogicalExpression | MemberExpression | PrivateName | ConditionalExpression | CallExpression | NewExpression | SequenceExpression | ArrowFunctionExpression | YieldExpression | TemplateLiteral | TaggedTemplateExpression | ClassExpression | MetaProperty | AwaitExpression;
+export declare type Expression = Identifier | Literal | RegExpLiteral | ThisExpression | ArrayExpression | ObjectExpression | FunctionExpression | UnaryExpression | UpdateExpression | BinaryExpression | AssignmentExpression | LogicalExpression | MemberExpression | PrivateName | ConditionalExpression | CallExpression | ImportExpression | NewExpression | SequenceExpression | ArrowFunctionExpression | YieldExpression | TemplateLiteral | TaggedTemplateExpression | ClassExpression | MetaProperty | AwaitExpression;
 export interface EmptyStatement extends _Node<'EmptyStatement'> {
@@ -227,3 +227,3 @@ }
 }
-declare type Expression = ThisExpression | ArrayExpression | ObjectExpression | FunctionExpression | ArrowFunctionExpression | YieldExpression | Literal | BigIntLiteral | UnaryExpression | UpdateExpression | BinaryExpression | AssignmentExpression | LogicalExpression | MemberExpression | ConditionalExpression | CallExpression | NewExpression | SequenceExpression | TemplateLiteral | TaggedTemplateExpression | ClassExpression | MetaProperty | Identifier | AwaitExpression;
+declare type Expression = ThisExpression | ArrayExpression | ObjectExpression | FunctionExpression | ArrowFunctionExpression | YieldExpression | Literal | BigIntLiteral | UnaryExpression | UpdateExpression | BinaryExpression | AssignmentExpression | LogicalExpression | MemberExpression | ConditionalExpression | ImportExpression | CallExpression | NewExpression | SequenceExpression | TemplateLiteral | TaggedTemplateExpression | ClassExpression | MetaProperty | Identifier | AwaitExpression;
 export interface ThisExpression extends _Expression<'ThisExpression'> {
@@ -286,9 +286,8 @@ }
 export interface CallExpression extends _Expression<'CallExpression'> {
-    callee: Expression | Import | Super;
+    callee: Expression | Super;
     arguments: (Expression | SpreadElement)[];
 }
-export interface Import extends _Node<'Import'> {
+export interface ImportExpression extends _Expression<'ImportExpression'> {
+    source: Expression;
 }
-export interface ImportExpression extends _Expression<'Import'> {
-}
 export interface NewExpression extends _Expression<'NewExpression'> {
@@ -295,0 +294,0 @@ callee: Expression;

dist/parser.d.ts

@@ -16,33 +16,41 @@ import { Token } from './token';
     parenthesizedExpr?: boolean;
+    lexical?: boolean;
 }
+export interface ScopeState {
+    var: any;
+    lexvar: any;
+    lex: any;
+    funcs?: any;
+}
 export declare function parseSource(source: string, options: Options | void, context: Context): ESTree.Program;
-export declare function parseStatementList(parser: ParserState, context: Context): ESTree.Statement[];
-export declare function parseparseModuleItemList(parser: ParserState, context: Context): (ReturnType<typeof parseDirective | typeof parseModuleItem>)[];
-export declare function parseModuleItem(parser: ParserState, context: Context, start: number): any;
-export declare function parseStatementListItem(parser: ParserState, context: Context, labels: any, start: number): ESTree.Statement | ESTree.Decorator[];
-export declare function parseStatement(parser: ParserState, context: Context, labels: any, allowFuncDecl: FunctionStatement, start: number): ESTree.Statement;
-export declare function parseExpressionOrLabelledStatement(parser: ParserState, context: Context, labels: any, allowFuncDecl: FunctionStatement, start: number): ESTree.ExpressionStatement | ESTree.LabeledStatement;
-export declare function parseBlock(parser: ParserState, context: Context, labels: any, start: number): ESTree.BlockStatement;
+export declare function parseStatementList(parser: ParserState, context: Context, scope: ScopeState): ESTree.Statement[];
+export declare function parseModuleItemList(parser: ParserState, context: Context, scope: ScopeState): (ReturnType<typeof parseDirective | typeof parseModuleItem>)[];
+export declare function parseModuleItem(parser: ParserState, context: Context, scope: ScopeState, start: number): any;
+export declare function parseStatementListItem(parser: ParserState, context: Context, scope: ScopeState, labels: any, start: number): ESTree.Statement | ESTree.Decorator[];
+export declare function parseStatement(parser: ParserState, context: Context, scope: ScopeState, labels: any, allowFuncDecl: FunctionStatement, start: number): ESTree.Statement;
+export declare function parseExpressionOrLabelledStatement(parser: ParserState, context: Context, scope: ScopeState, labels: any, allowFuncDecl: FunctionStatement, start: number): ESTree.ExpressionStatement | ESTree.LabeledStatement;
+export declare function parseBlock(parser: ParserState, context: Context, scope: any, labels: any, start: number): ESTree.BlockStatement;
 export declare function parseReturnStatement(parser: ParserState, context: Context, start: number): ESTree.ReturnStatement;
 export declare function parseExpressionStatement(parser: ParserState, context: Context, expression: ESTree.Expression, start: number): ESTree.ExpressionStatement;
-export declare function parseLabelledStatement(parser: ParserState, context: Context, labels: any, label: string, expr: ESTree.Identifier, token: Token, allowFuncDecl: 0 | 1, start: number): ESTree.LabeledStatement;
-export declare function parseAsyncArrowOrAsyncFunctionDeclaration(parser: ParserState, context: Context, labels: any, allowFuncDecl: FunctionStatement, start: number): ESTree.ExpressionStatement | ESTree.LabeledStatement | ESTree.FunctionDeclaration;
+export declare function parseLabelledStatement(parser: ParserState, context: Context, scope: ScopeState, labels: any, label: string, expr: ESTree.Identifier, token: Token, allowFuncDecl: 0 | 1, start: number): ESTree.LabeledStatement;
+export declare function parseAsyncArrowOrAsyncFunctionDeclaration(parser: ParserState, context: Context, scope: ScopeState, labels: any, allowFuncDecl: FunctionStatement, start: number): ESTree.ExpressionStatement | ESTree.LabeledStatement | ESTree.FunctionDeclaration;
 export declare function parseDirective(parser: ParserState, context: Context, expression: any, token: Token, start: number): ESTree.ExpressionStatement;
 export declare function parseEmptyStatement(parser: ParserState, context: Context, start: number): ESTree.EmptyStatement;
 export declare function parseThrowStatement(parser: ParserState, context: Context, start: number): ESTree.ThrowStatement;
-export declare function parseIfStatement(parser: ParserState, context: Context, labels: any, start: number): ESTree.IfStatement;
-export declare function parseConsequentOrAlternate(parser: ParserState, context: Context, labels: any, start: number): ESTree.Statement | ESTree.FunctionDeclaration;
-export declare function parseSwitchStatement(parser: ParserState, context: Context, labels: any, start: number): ESTree.SwitchStatement;
-export declare function parseWhileStatement(parser: ParserState, context: Context, labels: any, start: number): ESTree.WhileStatement;
+export declare function parseIfStatement(parser: ParserState, context: Context, scope: ScopeState, labels: any, start: number): ESTree.IfStatement;
+export declare function parseConsequentOrAlternate(parser: ParserState, context: Context, scope: ScopeState, labels: any, start: number): ESTree.Statement | ESTree.FunctionDeclaration;
+export declare function parseSwitchStatement(parser: ParserState, context: Context, scope: ScopeState, labels: any, start: number): ESTree.SwitchStatement;
+export declare function parseWhileStatement(parser: ParserState, context: Context, scope: ScopeState, labels: any, start: number): ESTree.WhileStatement;
+export declare function parseIterationStatementBody(parser: ParserState, context: Context, scope: ScopeState, labels: any): ESTree.Statement;
 export declare function parseContinueStatement(parser: ParserState, context: Context, labels: any, start: number): ESTree.ContinueStatement;
 export declare function parseBreakStatement(parser: ParserState, context: Context, labels: any, start: number): ESTree.BreakStatement;
-export declare function parseWithStatement(parser: ParserState, context: Context, labels: any, start: number): ESTree.WithStatement;
+export declare function parseWithStatement(parser: ParserState, context: Context, scope: ScopeState, labels: any, start: number): ESTree.WithStatement;
 export declare function parseDebuggerStatement(parser: ParserState, context: Context, start: number): ESTree.DebuggerStatement;
-export declare function parseTryStatement(parser: ParserState, context: Context, labels: any, start: number): ESTree.TryStatement;
-export declare function parseCatchBlock(parser: ParserState, context: Context, labels: any, start: number): ESTree.CatchClause;
-export declare function parseDoWhileStatement(parser: ParserState, context: Context, labels: any, start: number): ESTree.DoWhileStatement;
-export declare function parseLetIdentOrVarDeclarationStatement(parser: ParserState, context: Context, start: number): ESTree.VariableDeclaration | ESTree.LabeledStatement | ESTree.ExpressionStatement;
-export declare function parseVariableStatement(parser: ParserState, context: Context, type: BindingType, origin: BindingOrigin, start: number): ESTree.VariableDeclaration;
-export declare function parseVariableDeclarationList(parser: ParserState, context: Context, type: BindingType, origin: BindingOrigin): ESTree.VariableDeclarator[];
-export declare function parseForStatement(parser: ParserState, context: Context, labels: any, start: number): ESTree.ForStatement | ESTree.ForInStatement | ESTree.ForOfStatement;
+export declare function parseTryStatement(parser: ParserState, context: Context, scope: ScopeState, labels: any, start: number): ESTree.TryStatement;
+export declare function parseCatchBlock(parser: ParserState, context: Context, scope: ScopeState, labels: any, isLexical: number, start: number): ESTree.CatchClause;
+export declare function parseDoWhileStatement(parser: ParserState, context: Context, scope: ScopeState, labels: any, start: number): ESTree.DoWhileStatement;
+export declare function parseLetIdentOrVarDeclarationStatement(parser: ParserState, context: Context, scope: ScopeState, start: number): ESTree.VariableDeclaration | ESTree.LabeledStatement | ESTree.ExpressionStatement;
+export declare function parseVariableStatement(parser: ParserState, context: Context, scope: ScopeState, origin: BindingOrigin, start: number): ESTree.VariableDeclaration;
+export declare function parseVariableDeclarationList(parser: ParserState, context: Context, scope: ScopeState, verifyDuplicates: 0 | 1, type: BindingType, origin: BindingOrigin): ESTree.VariableDeclarator[];
+export declare function parseForStatement(parser: ParserState, context: Context, scope: ScopeState, labels: any, start: number): ESTree.ForStatement | ESTree.ForInStatement | ESTree.ForOfStatement;
 export declare function parseExpression(parser: ParserState, context: Context, assignable: 0 | 1, inGroup: 0 | 1, start: number): ESTree.Expression;
@@ -57,7 +65,8 @@ export declare function parseSequenceExpression(parser: ParserState, context: Context, start: number, expr: ESTree.AssignmentExpression | ESTree.Expression): ESTree.SequenceExpression;
 export declare function parseAwaitExpressionOrIdentifier(parser: ParserState, context: Context, inNewExpression: 0 | 1, start: number): ESTree.Identifier | ESTree.Expression | ESTree.ArrowFunctionExpression | ESTree.AwaitExpression;
-export declare function parseFunctionBody(parser: ParserState, context: Context, origin: BindingOrigin, firstRestricted: Token | undefined): ESTree.BlockStatement;
+export declare function parseFunctionBody(parser: ParserState, context: Context, scope: any, origin: BindingOrigin, firstRestricted: Token | undefined): ESTree.BlockStatement;
 export declare function parseSuperExpression(parser: ParserState, context: Context, start: number): ESTree.Super;
 export declare function parseLeftHandSideExpression(parser: ParserState, context: Context, assignable: 0 | 1, inGroup: 0 | 1, start: number): any;
-export declare function parseMemberOrUpdateExpression(parser: ParserState, context: Context, expr: ESTree.Expression, inNewExpression: 0 | 1, isImportCall: 0 | 1, inGroup: 0 | 1, start: number): any;
+export declare function parseMemberOrUpdateExpression(parser: ParserState, context: Context, expr: ESTree.Expression, inNewExpression: 0 | 1, inGroup: 0 | 1, start: number): any;
 export declare function parsePrimaryExpressionExtended(parser: ParserState, context: Context, type: BindingType, inNewExpression: 0 | 1, assignable: 0 | 1, inGroup: 0 | 1, start: number): any;
+export declare function parseImportExpression(parser: ParserState, context: Context, inGroup: 0 | 1, start: number): ESTree.ImportExpression;
 export declare function parseBigIntLiteral(parser: ParserState, context: Context, start: number): ESTree.BigIntLiteral;
@@ -68,3 +77,3 @@ export declare function parseTemplateLiteral(parser: ParserState, context: Context, start: number): ESTree.TemplateLiteral;
 export declare function parseTemplateSpans(parser: ParserState, context: Context, tail: boolean, start: number): ESTree.TemplateElement;
-export declare function parseArguments(parser: ParserState, context: Context, isImportCall: 0 | 1, inGroup: 0 | 1): (ESTree.SpreadElement | ESTree.Expression)[];
+export declare function parseArguments(parser: ParserState, context: Context, inGroup: 0 | 1): (ESTree.SpreadElement | ESTree.Expression)[];
 export declare function parseIdentifier(parser: ParserState, context: Context, start: number): ESTree.Identifier;
@@ -74,13 +83,13 @@ export declare function parseLiteral(parser: ParserState, context: Context, start: number): ESTree.Literal;
 export declare function parseThisExpression(parser: ParserState, context: Context, start: number): ESTree.ThisExpression;
-export declare function parseFunctionDeclaration(parser: ParserState, context: Context, allowGen: 0 | 1, isExportDefault: 0 | 1, isAsync: 0 | 1, start: number): ESTree.FunctionDeclaration;
+export declare function parseFunctionDeclaration(parser: ParserState, context: Context, scope: ScopeState, allowGen: 0 | 1, isExportDefault: 0 | 1, isAsync: 0 | 1, start: number): ESTree.FunctionDeclaration;
 export declare function parseFunctionExpression(parser: ParserState, context: Context, isAsync: 0 | 1, inGroup: 0 | 1, start: number): ESTree.FunctionExpression;
-export declare function parseArrayExpressionOrPattern(parser: ParserState, context: Context, skipInitializer: 0 | 1, inGroup: 0 | 1, type: BindingType, start: number): ESTree.ArrayExpression | ESTree.ArrayPattern;
+export declare function parseArrayExpressionOrPattern(parser: ParserState, context: Context, scope: any, skipInitializer: 0 | 1, inGroup: 0 | 1, type: BindingType, start: number): ESTree.ArrayExpression | ESTree.ArrayPattern;
 export declare function parseMethodDefinition(parser: ParserState, context: Context, kind: PropertyKind, inGroup: 0 | 1, start: number): ESTree.FunctionExpression;
-export declare function parseObjectLiteralOrPattern(parser: ParserState, context: Context, skipInitializer: 0 | 1, inGroup: 0 | 1, type: BindingType, start: number): ESTree.ObjectExpression | ESTree.ObjectPattern | ESTree.AssignmentExpression;
-export declare function parseMethodFormals(parser: ParserState, context: Context, kind: PropertyKind, type: BindingType, inGroup: 0 | 1): any[];
+export declare function parseObjectLiteralOrPattern(parser: ParserState, context: Context, scope: any, skipInitializer: 0 | 1, inGroup: 0 | 1, type: BindingType, start: number): ESTree.ObjectExpression | ESTree.ObjectPattern | ESTree.AssignmentExpression;
+export declare function parseMethodFormals(parser: ParserState, context: Context, scope: any, kind: PropertyKind, type: BindingType, inGroup: 0 | 1): any[];
 export declare function parseComputedPropertyName(parser: ParserState, context: Context, inGroup: 0 | 1): ESTree.Expression;
 export declare function parseParenthesizedExpression(parser: ParserState, context: Context, assignable: 0 | 1, start: number): any;
-export declare function parseIdentifierOrArrow(parser: ParserState, context: Context, expr: ESTree.Identifier, start: number): ESTree.Identifier | ESTree.ArrowFunctionExpression;
-export declare function parseArrowFunctionExpression(parser: ParserState, context: Context, params: ESTree.Pattern[], isAsync: 0 | 1, start: number): ESTree.ArrowFunctionExpression;
-export declare function parseFormalParametersOrFormalList(parser: ParserState, context: Context, inGroup: 0 | 1, type: BindingType): any[];
+export declare function parseIdentifierOrArrow(parser: ParserState, context: Context, start: number): ESTree.Identifier | ESTree.ArrowFunctionExpression;
+export declare function parseArrowFunctionExpression(parser: ParserState, context: Context, scope: any, params: ESTree.Pattern[], isAsync: 0 | 1, start: number): ESTree.ArrowFunctionExpression;
+export declare function parseFormalParametersOrFormalList(parser: ParserState, context: Context, scope: any, inGroup: 0 | 1, type: BindingType): any[];
 export declare function parseNewExpression(parser: ParserState, context: Context, inGroup: 0 | 1, start: number): ESTree.NewExpression | ESTree.Expression | ESTree.MetaProperty;
@@ -91,9 +100,19 @@ export declare function parseMetaProperty(parser: ParserState, context: Context, meta: ESTree.Identifier, start: number): ESTree.MetaProperty;
 export declare function parseRegExpLiteral(parser: ParserState, context: Context, start: number): ESTree.RegExpLiteral;
-export declare function parseClassDeclaration(parser: ParserState, context: Context, isExportDefault: 0 | 1, start: number): ESTree.ClassDeclaration;
+export declare function parseClassDeclaration(parser: ParserState, context: Context, scope: any, isExportDefault: 0 | 1, start: number): ESTree.ClassDeclaration;
 export declare function parseClassExpression(parser: ParserState, context: Context, inGroup: 0 | 1, start: number): ESTree.ClassExpression;
 export declare function parseDecorators(parser: ParserState, context: Context): ESTree.Decorator[];
 export declare function parseDecoratorList(parser: ParserState, context: Context, start: number): ESTree.Decorator;
-export declare function parseClassBody(parser: ParserState, context: Context, inheritedContext: Context, type: BindingType, origin: BindingOrigin, inGroup: 0 | 1): ESTree.ClassBody;
+export declare function parseClassBody(parser: ParserState, context: Context, inheritedContext: Context, scope: any, type: BindingType, origin: BindingOrigin, inGroup: 0 | 1): ESTree.ClassBody;
 export declare function parseFieldDefinition(parser: ParserState, context: Context, key: ESTree.PrivateName | ESTree.Expression | null, state: PropertyKind, decorators: ESTree.Decorator[] | null, start: number): ESTree.FieldDefinition;
-export declare function parseBindingPattern(parser: ParserState, context: Context, type: BindingType, start: number): ESTree.Pattern | ESTree.Identifier;
+export declare function parseBindingPattern(parser: ParserState, context: Context, scope: any, dupeChecks: 0 | 1, type: BindingType, origin: BindingOrigin, start: number): ESTree.Pattern | ESTree.Identifier;
+export declare function createBlockScope(): ScopeState;
+export declare function childScope(scope: any, type: any): ScopeState;
+export declare function recordValueAndDedupe(parser: ParserState, context: Context, scope: any, name: string, type: BindingType, isVarDecl: 0 | 1): void;
+export declare function declareFunctionName(parser: ParserState, context: Context, scope: any, name: string, type: BindingType, isVarDecl: 0 | 1): void;
+export declare function recordValue(parser: ParserState, context: Context, scope: any, name: string, bindingType: BindingType, dupeChecks: 0 | 1, isVarDecl: 0 | 1): void;
+export declare function checkConflictingLexicalsDeclarations(parser: ParserState, context: Context, scope: any, checkParent: 0 | 1): boolean;
+export declare function checkLexicalConflictInParentScope(parser: ParserState, context: Context, scope: any, hashed: string): void;
+export declare function verifyArguments(parser: ParserState, lex: any): void;
+export declare function addNameToExports(parser: ParserState, key: string): void;
+export declare function addBindingToExports(parser: ParserState, key: any): void;
 //# sourceMappingURL=parser.d.ts.map

package.json

 {
   "name": "meriyah",
-  "version": "0.3.1",
+  "version": "0.3.2",
   "description": "A 100% compliant, self-hosted javascript parser with high focus on both performance and stability",
@@ -67,3 +67,3 @@ "main": "dist/meriyah.umd.js",
     "cross-env": "^5.2.0",
-    "husky": "^2.4.0",
+    "husky": "^2.4.1",
     "mocha": "^6.1.4",
@@ -74,3 +74,3 @@ "nyc": "^14.1.1",
     "rimraf": "^2.6.3",
-    "rollup": "^1.14.4",
+    "rollup": "^1.15.4",
     "rollup-plugin-replace": "^2.2.0",
@@ -85,4 +85,4 @@ "rollup-plugin-terser": "^5.0.0",
     "tslint-microsoft-contrib": "^6.2.0",
-    "typescript": "^3.5.1",
-    "unexpected": "^11.6.0",
+    "typescript": "^3.5.2",
+    "unexpected": "^11.6.1",
     "unicode-12.0.0": "^0.8.0"
@@ -89,0 +89,0 @@ },

README.md

@@ -1,9 +0,3 @@
-<p align="center">
-  <img width="260" height="200" src="https://github.com/meriyah/meriyah/blob/master/scripts/logo.png">
-</p>
+# Meriyah
 
-<h4 align="center">A 100% compliant, self-hosted javascript parser with high focus on both performance and stability</h4>
-
-<p align="center">
-
 [![NPM version](https://img.shields.io/npm/v/meriyah.svg?style=flat-square)](https://www.npmjs.com/package/meriyah)
@@ -13,4 +7,5 @@ [![Code Quality: Javascript](https://img.shields.io/lgtm/grade/javascript/g/meriyah/meriyah.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/meriyah/meriyah/context:javascript)
 [![CircleCI](https://circleci.com/gh/meriyah/meriyah.svg?style=svg)](https://circleci.com/gh/meriyah/meriyah)
-</p>
 
+A 100% compliant, self-hosted javascript parser with high focus on both performance and stability
+
 ## Features
@@ -119,2 +114,3 @@
 | `impliedStrict`   | Enable strict mode (*initial enforcement*) |
+| `lexical`         | Enable lexical binding and scope tracking |
 | `module`          | Allow parsing with module goal |
@@ -121,0 +117,0 @@ | `next`            | Allow parsing with `ESNext` features  |

src/common.ts

@@ -17,3 +17,3 @@ import { Token, KeywordDescTable } from './token';
   OptionsGlobalReturn   = 1 << 5,
-  OptionsGlobalAwait    = 1 << 6,
+  OptionsLexical        = 1 << 6,
   OptionsParenthesized  = 1 << 7,
@@ -64,7 +64,6 @@ OptionsWebCompat      = 1 << 8,
   None          = 0,
-  ArgumentList  = 1 << 0,
+  ArgList       = 1 << 0,
   Variable      = 1 << 2,
   Let           = 1 << 3,
-  Const         = 1 << 4,
-  Class         = 1 << 5
+  Const         = 1 << 4
 }
@@ -110,5 +109,14 @@
   SimpleParameterList = 1 << 7,
-  Yield          = 1 << 8,
+  Yield               = 1 << 8,
 }
 
+export const enum ScopeType {
+  None          = 0,
+  For           = 1 << 0,
+  Block         = 1 << 1,
+  Catch         = 1 << 2,
+  Switch        = 1 << 3,
+  ArgList  = 1 << 4,
+}
+
 export const enum FunctionStatement {
@@ -141,2 +149,4 @@ Disallow,
   nextCP: number;
+  exportedNames: any;
+  exportedBindings: any;
 }
@@ -339,3 +349,3 @@
 
-  do {
+  while (labels) {
     if (labels['€' + name]) {
@@ -347,3 +357,3 @@ if (isIterationStatement) report(parser, Errors.InvalidNestedStatement);
     labels = labels['€'];
-  } while (labels);
+  }
 
@@ -363,8 +373,6 @@ return 0;
   let set = labels;
-
-  do {
-    if (set['€' + name]) report(parser, Errors.LabelRedeclaration, name);
+  while (set) {
+    if (set && set['€' + name]) report(parser, Errors.LabelRedeclaration, name);
     set = set['€'];
-  } while (set);
-
+  }
   labels['€' + name] = 1;
@@ -371,0 +379,0 @@ }

src/errors.ts

@@ -160,3 +160,8 @@ import { ParserState } from './common';
   InvalidSpreadInImport,
-  UncompleteArrow
+  UncompleteArrow,
+  DuplicateBinding,
+  DuplicateExportBinding,
+  UndeclaredExportedBinding,
+  UnexpectedPrivateField,
+  DuplicateLetConstBinding
 }
@@ -332,3 +337,8 @@
   [Errors.InvalidSpreadInImport]: '... is not allowed in import()',
-  [Errors.UncompleteArrow]: "Expected '=>'"
+  [Errors.UncompleteArrow]: "Expected '=>'",
+  [Errors.DuplicateBinding]: "Duplicate binding '%0'",
+  [Errors.DuplicateExportBinding]: "Cannot export a duplicate name '%0'",
+  [Errors.DuplicateLetConstBinding]: 'Duplicate %0 for-binding',
+  [Errors.UndeclaredExportedBinding]: "Exported binding '%0' needs to refer to a top-level declared variable",
+  [Errors.UnexpectedPrivateField]: 'Unexpected private field'
 };
@@ -335,0 +345,0 @@

src/estree.ts

@@ -434,8 +434,6 @@ interface _Node<T extends string> {
 export interface CallExpression extends _Expression<'CallExpression'> {
-  callee: Expression | Import | Super;
+  callee: Expression | Super;
   arguments: (Expression | SpreadElement)[];
 }
 
-export interface Import extends _Node<'Import'> {}
-
 export interface ImportExpression extends _Expression<'ImportExpression'> {
@@ -442,0 +440,0 @@ source: Expression;

New alerts

License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Fixed alerts

License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

2442940

increased by7.01%

Lines of code

45545

increased by7.52%

Worsened metrics

Number of lines in readme file

120

decreased by-3.23%

No dependency changes