meriyah - npm Package Compare versions

Comparing version 0.1.0 to 0.1.1

dist/common.d.ts

@@ -90,2 +90,11 @@ import { Token } from './token';
 }
+export declare const enum ParseFunctionFlag {
+    None = 0,
+    DisallowGenerator = 1,
+    RequireIdentifier = 2
+}
+export declare const enum LabelledFunctionStatement {
+    Disallow = 0,
+    Allow = 1
+}
 export interface ParserState {
@@ -92,0 +101,0 @@ source: string;

dist/parser.d.ts

 import { Token } from './token';
 import * as ESTree from './estree';
-import { Context, ParserState, Kind, BindingOrigin, BindingType } from './common';
-export declare const enum LabelledFunctionStatement {
-    Disallow = 0,
-    Allow = 1
-}
-export declare const enum ParseFunctionFlag {
-    IsNormal = 0,
-    DisAllowGenerator = 1,
-    RequireIdentifier = 2
-}
-export declare const enum DecoratorFlag {
-    IsNormal = 0,
-    InExportDecl = 1,
-    InClassBody = 2
-}
+import { Context, ParserState, Kind, BindingOrigin, LabelledFunctionStatement, ParseFunctionFlag, BindingType } from './common';
 export declare function create(source: string): ParserState;
@@ -73,3 +59,2 @@ export interface Options {
 export declare function parseLeftHandSideExpression(parser: ParserState, context: Context, assignable: 0 | 1): any;
-export declare function parseCallExpressionRest(parser: ParserState, context: Context, expression: ESTree.Expression): any;
 export declare function parseMemberOrUpdateExpression(parser: ParserState, context: Context, expr: ESTree.Expression, inNewExpression: 0 | 1): any;
@@ -76,0 +61,0 @@ export declare function parsePrimaryExpressionExtended(parser: ParserState, context: Context, type: BindingType, inNewExpression: 0 | 1, assignable: 0 | 1): any;

dist/token.d.ts

@@ -23,2 +23,3 @@ export declare const enum Token {
     IsEvalOrArguments = 537079808,
+    IsCommaOrRightParen = 1073741824,
     EOF = 1048576,
@@ -40,5 +41,5 @@ Identifier = 208897,
     RightBrace = 1048591,
-    RightParen = 16,
+    RightParen = 1073741840,
     Semicolon = 1048593,
-    Comma = 18,
+    Comma = 1073741842,
     LeftBracket = 69271571,
@@ -45,0 +46,0 @@ RightBracket = 20,

package.json

 {
   "name": "meriyah",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "description": "Fast and lightweight, standard-compliant javascript parser written in ECMAScript",
@@ -80,2 +80,3 @@ "main": "dist/meriyah.umd.js",
     "source-map-support": "^0.5.12",
+    "test262-parser-tests": "0.0.5",
     "ts-node": "^8.1.0",
@@ -82,0 +83,0 @@ "tsconfig-paths": "^3.8.0",

README.md

 # meriyah
 
-A 100% spec compliant, self-hosted javascript parser with high focus on both performance and stability.
+[![CircleCI](https://circleci.com/gh/meriyah/meriyah/tree/master.svg?style=svg)](https://circleci.com/gh/meriyah/meriyah/tree/master)
 
+A 100% compliant, self-hosted javascript parser with high focus on both performance and stability.
+
 ## Features
@@ -25,2 +27,16 @@
 
+## Options
+
+The second argument allows you to specify various options:
+
+| Option        | Description |
+| ----------- | ------------------------------------------------------------ |
+| `directives`      | Enable [directive prologue](https://github.com/danez/estree/blob/directive/es5.md#directive) to each literal node |
+| `globalReturn`    | Allow return in the global scope |
+| `impliedStrict`   | Enable strict mode initial enforcement |
+| `module`          | Allow parsing in module code |
+| `next`            | Allow parsing with `ESNext` features  |
+| `raw`             | Attach raw property to each literal node |
+| `webcompat`       | Enable [web compability](https://tc39.github.io/ecma262/#sec-additional-ecmascript-features-for-web-browsers) |
+
 ## API
@@ -96,15 +112,1 @@
 ```
-
-## Options
-
-The second argument allows you to specify various options:
-
-| Option        | Description |
-| ----------- | ------------------------------------------------------------ |
-| `directives`      | Enable [directive prologue](https://github.com/danez/estree/blob/directive/es5.md#directive) to each literal node |
-| `globalReturn`    | Allow return in the global scope |
-| `impliedStrict`   | Enable strict mode initial enforcement |
-| `module`          | Allow parsing in module code |
-| `next`            | Enable `ESNext` feature support  |
-| `raw`             | Attach raw property to each literal node and identifier node |
-| `webcompat`       | Enable [web compability](https://tc39.github.io/ecma262/#sec-additional-ecmascript-features-for-web-browsers) |

src/common.ts

@@ -21,3 +21,3 @@ import { Token, KeywordDescTable } from './token';
   Strict                = 1 << 10,
-  Module                = 1 << 11,
+  Module                = 1 << 11, // Current code should be parsed as a module body
   InSwitch              = 1 << 12,
@@ -75,3 +75,3 @@ InGlobal              = 1 << 13,
   Statement     = 1 << 3,
-  Export =      1 << 4
+  Export        = 1 << 4
 }
@@ -110,2 +110,13 @@
 
+export const enum ParseFunctionFlag {
+  None              = 0,
+  DisallowGenerator = 1 << 0,
+  RequireIdentifier = 1 << 1,
+}
+
+export const enum LabelledFunctionStatement {
+  Disallow,
+  Allow,
+}
+
 /**
@@ -243,5 +254,3 @@ * The parser interface.
   if (token === Token.LetKeyword) {
-    if (type & BindingType.Class) report(parser, Errors.InvalidLetClassName);
     if (type & (BindingType.Let | BindingType.Const)) report(parser, Errors.InvalidLetConstBinding);
-    if (context & Context.Strict) report(parser, Errors.InvalidStrictLet);
   }
@@ -297,1 +306,13 @@
 }
+
+export function validateArrowBlockBody(parser: ParserState): any {
+  switch (parser.token) {
+    case Token.Period:
+    case Token.LeftBracket:
+    case Token.TemplateTail:
+      report(parser, Errors.InvalidAccessedBlockBodyArrow);
+    case Token.LeftParen:
+      report(parser, Errors.InvalidInvokedBlockBodyArrow);
+    default: // ignore
+  }
+}

src/errors.ts

@@ -134,3 +134,4 @@ import { ParserState } from './common';
   ForOfLet,
-  InvalidBlockBodyArrow,
+  InvalidInvokedBlockBodyArrow,
+  InvalidAccessedBlockBodyArrow,
   UnexpectedStrictReserved,
@@ -142,3 +143,5 @@ StrictEvalArguments,
   InvalidPatternTail,
-  ForLoopInvalidLHS
+  ForLoopInvalidLHS,
+  AsyncFunctionInSingleStatementContext,
+  InvalidTernaryYield
 }
@@ -185,2 +188,4 @@
     'Unary expressions as the left operand of an exponentation expression must be disambiguated with parentheses',
+  [Errors.AsyncFunctionInSingleStatementContext]:
+    'Async functions can only be declared at the top level or inside a block',
   [Errors.UnterminatedRegExp]: 'Unterminated regular expression',
@@ -289,3 +294,4 @@ [Errors.UnexpectedTokenRegExpFlag]: 'Unexpected regular expression flag',
   [Errors.ForOfLet]: "The left-hand side of a for-of loop may not start with 'let'",
-  [Errors.InvalidBlockBodyArrow]: 'Block body arrows can not be immediately %0 without a group',
+  [Errors.InvalidInvokedBlockBodyArrow]: 'Block body arrows can not be immediately tagged without a group',
+  [Errors.InvalidAccessedBlockBodyArrow]: 'Block body arrows can not be immediately accessed without a group',
   [Errors.UnexpectedStrictReserved]: 'Unexpected strict mode reserved word',
@@ -296,3 +302,4 @@ [Errors.StrictEvalArguments]: 'Unexpected eval or arguments in strict mode',
   [Errors.StrictDelete]: 'Calling delete on expression not allowed in strict mode',
-  [Errors.InvalidPatternTail]: 'Pattern can not have a tail'
+  [Errors.InvalidPatternTail]: 'Pattern can not have a tail',
+  [Errors.InvalidTernaryYield]: 'Can not have a `yield` expression on the left side of a ternary'
 };
@@ -299,0 +306,0 @@

src/estree.ts

@@ -298,3 +298,2 @@ // Note:
   async: boolean;
-  generator: false;
 }
@@ -301,0 +300,0 @@

src/lexer/comments.ts

@@ -0,0 +0,0 @@ import { nextCodePoint, CharTypes, CharFlags } from './';

src/lexer/common.ts

@@ -0,0 +0,0 @@ import { Chars } from '../chars';

src/lexer/identifier.ts

@@ -0,0 +0,0 @@ import { ParserState, Context } from '../common';

src/lexer/index.ts

@@ -0,0 +0,0 @@ export { scanSingleToken, nextToken } from './scan';

src/lexer/numeric.ts

@@ -0,0 +0,0 @@ import { ParserState, Context, Flags } from '../common';

src/lexer/regexp.ts

@@ -0,0 +0,0 @@ import { Chars } from '../chars';

src/lexer/string.ts

@@ -0,0 +0,0 @@ import { ParserState, Context } from '../common';

src/lexer/template.ts

@@ -0,0 +0,0 @@ import { ParserState, Context } from '../common';

src/token.ts

@@ -28,3 +28,4 @@ export const enum Token {
   VarDecl              = 1 << 28,
-  IsEvalOrArguments      = 1 << 29 | IsExpressionStart | IsIdentifier,
+  IsEvalOrArguments    = 1 << 29 | IsExpressionStart | IsIdentifier,
+  IsCommaOrRightParen  = 1 << 30,
 
@@ -55,5 +56,5 @@
   RightBrace   = 15 | IsAutoSemicolon, // }
-  RightParen   = 16, // )
+  RightParen   = 16 | IsCommaOrRightParen, // )
   Semicolon    = 17 | IsAutoSemicolon, // ;
-  Comma        = 18, // ,
+  Comma        = 18 | IsCommaOrRightParen, // ,
   LeftBracket  = 19 | IsExpressionStart | IsPatternStart | IsMemberOrCallExpression, // [
@@ -60,0 +61,0 @@ RightBracket = 20, // ]

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Improved metrics

Total package byte prevSize

2036933

increased by0.15%

Number of lines in readme file

111

increased by1.83%

Number of medium supply chain risk alerts

0

decreased by-100%

Worsened metrics

Dev dependency count

23

increased by4.55%

Number of downloads

105317

decreased by-9.76%

Lines of code

39278

decreased by-0.29%

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