lexer: identifier starts with unicode-escape needs ID_Start check (e1d5534)
lexer: in non-strict mode, future reserved keyword can be used as identifier (5764ad7)
lexer: no line break is allowed in regex literal (773208b)
lexer: private identifier can start with escaped unicode (85a39e7)
lexer: unicode escaped "let" can not be let keyword (406d72c)
parser: "arguments" is not allowed in class property initializer or static block (c9857c6)
parser: "use strict" directive could be after invalid string (527ea97), closes #149
parser: a newline may not precede the * token in a yield expression (e0eeb89)
parser: add missing import-attributes support in ExportNamedDeclaration (f7864a6), closes #289
parser: async function should not skip duplication error (94d41ae), closes #291
parser: catch block without catch-binding should have lexical scope (db7b3ae)
parser: class is implicit strict mode, but decorator before class is not (97f4927)
parser: class static block disallows "await" as identifier (4c7f2c3)
parser: class static block disllows "yield" as idenfifier (1cb0d65)
parser: class static block has no return statement (f2b73ee)
parser: dot property name can be escaped reserved or future reserved (eedce98)
parser: escaped reserved keyword can be used as class element name (b8e4b3c)
parser: fix an edge case of invalid escape in tagged template (118fdae)
parser: fix annexB behaviour (webcompat) of catch param (359dcbe)
parser: fix destruct pattern check (1e5e394)
parser: fix duplicated function params check (d0aeda6)
parser: fix duplicated proto check in async() and async() => {} (66ad497)
parser: fix early error on escaped oct and \8 \9 (33b68df)
parser: fix import.meta check, await check and await in static block (b269996)
parser: fix jsx parsing on '< / >' (ad71155), closes #185
parser: fix jsx with comments in tag (a2e4767), closes #185
parser: fix onToken callback for template and jsx (407a2ca), closes #215 #216
parser: fix scoped analysis for export binding and name (22509b7)
parser: fix simple params list and strict reserved check on func (635a41b), closes #295 #296
parser: fix unicode identifier value and check (36a5ef6)
parser: generator function should not skip duplication error (d3c953b)
parser: in strict mode, escaped future reserved can be used as identifier but not destructible (762f8c1)
parser: iteration/switch cannot across class static block boundry (c832eb6)
parser: new.target is allowed in class static block (2cec2a9)
parser: object literal ({a b}) is invalid (c069662), closes #73
parser: oct escape and \8 \9 are not allowed in template string if not tagged (e12d75d)
parser: only class static non-private property cannot be named 'prototype' (03ef7bc)
parser: partially fix duplicated proto check in parenthesis (e998b9c)
parser: private identifier should work in optional chaining (f22f7ad)
paser: fix strict mode check for arrow function (4ca184a)
paser: private identifier cannot be accessed on super (15d679d)
scanner: fix value for huge BigInt (a09b497)

chore

drop support of Nodejs < 18 (829835e)
reduce dist files to esm, cjs, and umd (962af5f)

Features

lexer: support regexp v flag (unicodeSets) (1d9a1ee)
parser: expose start/end/range/loc:{start,end} to ParseError (27691df), closes #156
parser: implement lexical analysis of private identifiers (66217a1), closes #322
parser: support arbitrary module namespace names (e43e93c), closes #200 #214
parser: support class auto-accessor through next option (b0d1621), closes #327
remove option "directives" (5d941e6)
support unicode 16 (0514c83)

BREAKING CHANGES

remove option "directives" as directives is in ECMA spec, and ESTree spec. No point to make it an optional feature.
parser: ParseError is changed from index,loc:{line,column} to start,end,range:[start,end],loc:{start:{line,column},end:{line,column}} just like what we have on AST node when options ranges and loc is turned on.
drop support of Nodejs < 18
only distribute following files: dist/meriyah.cjs dist/meriyah.mjs dist/meriyah.min.mjs dist/meriyah.umd.js dist/meriyah.umd.min.js All transpiled with target: "ES2021"

6.0.0

Diff

huochunpeng

published 6.0.0 • 2 weeks ago

Changelog

Source

6.0.1 (2024-09-16)

Bug Fixes

scanner: proper EOF error for unterminated template (cde6b2f)

Bug Fixes

lexer: identifier starts with unicode-escape needs ID_Start check (e1d5534)
lexer: in non-strict mode, future reserved keyword can be used as identifier (5764ad7)
lexer: no line break is allowed in regex literal (773208b)
lexer: private identifier can start with escaped unicode (85a39e7)
lexer: unicode escaped "let" can not be let keyword (406d72c)
parser: "arguments" is not allowed in class property initializer or static block (c9857c6)
parser: "use strict" directive could be after invalid string (527ea97), closes #149
parser: a newline may not precede the * token in a yield expression (e0eeb89)
parser: add missing import-attributes support in ExportNamedDeclaration (f7864a6), closes #289
parser: async function should not skip duplication error (94d41ae), closes #291
parser: catch block without catch-binding should have lexical scope (db7b3ae)
parser: class is implicit strict mode, but decorator before class is not (97f4927)
parser: class static block disallows "await" as identifier (4c7f2c3)
parser: class static block disllows "yield" as idenfifier (1cb0d65)
parser: class static block has no return statement (f2b73ee)
parser: dot property name can be escaped reserved or future reserved (eedce98)
parser: escaped reserved keyword can be used as class element name (b8e4b3c)
parser: fix an edge case of invalid escape in tagged template (118fdae)
parser: fix annexB behaviour (webcompat) of catch param (359dcbe)
parser: fix destruct pattern check (1e5e394)
parser: fix duplicated function params check (d0aeda6)
parser: fix duplicated proto check in async() and async() => {} (66ad497)
parser: fix early error on escaped oct and \8 \9 (33b68df)
parser: fix import.meta check, await check and await in static block (b269996)
parser: fix jsx parsing on '< / >' (ad71155), closes #185
parser: fix jsx with comments in tag (a2e4767), closes #185
parser: fix onToken callback for template and jsx (407a2ca), closes #215 #216
parser: fix scoped analysis for export binding and name (22509b7)
parser: fix simple params list and strict reserved check on func (635a41b), closes #295 #296
parser: fix unicode identifier value and check (36a5ef6)
parser: generator function should not skip duplication error (d3c953b)
parser: in strict mode, escaped future reserved can be used as identifier but not destructible (762f8c1)
parser: iteration/switch cannot across class static block boundry (c832eb6)
parser: new.target is allowed in class static block (2cec2a9)
parser: object literal ({a b}) is invalid (c069662), closes #73
parser: oct escape and \8 \9 are not allowed in template string if not tagged (e12d75d)
parser: only class static non-private property cannot be named 'prototype' (03ef7bc)
parser: partially fix duplicated proto check in parenthesis (e998b9c)
parser: private identifier should work in optional chaining (f22f7ad)
paser: fix strict mode check for arrow function (4ca184a)
paser: private identifier cannot be accessed on super (15d679d)
scanner: fix value for huge BigInt (a09b497)

chore

drop support of Nodejs < 18 (829835e)
reduce dist files to esm, cjs, and umd (962af5f)

Features

lexer: support regexp v flag (unicodeSets) (1d9a1ee)
parser: expose start/end/range/loc:{start,end} to ParseError (27691df), closes #156
parser: implement lexical analysis of private identifiers (66217a1), closes #322
parser: support arbitrary module namespace names (e43e93c), closes #200 #214
parser: support class auto-accessor through next option (b0d1621), closes #327
remove option "directives" (5d941e6)
support unicode 16 (0514c83)

BREAKING CHANGES

remove option "directives" as directives is in ECMA spec, and ESTree spec. No point to make it an optional feature.
parser: ParseError is changed from index,loc:{line,column} to start,end,range:[start,end],loc:{start:{line,column},end:{line,column}} just like what we have on AST node when options ranges and loc is turned on.
drop support of Nodejs < 18
only distribute following files: dist/meriyah.cjs dist/meriyah.mjs dist/meriyah.min.mjs dist/meriyah.umd.js dist/meriyah.umd.min.js All transpiled with target: "ES2021"