You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
798 lines
19 KiB
798 lines
19 KiB
## 8.7.1 (2021-04-26) |
|
|
|
### Bug fixes |
|
|
|
Stop handling `"use strict"` directives in ECMAScript versions before 5. |
|
|
|
Fix an issue where duplicate quoted export names in `export *` syntax were incorrectly checked. |
|
|
|
Add missing type for `tokTypes`. |
|
|
|
## 8.7.0 (2021-12-27) |
|
|
|
### New features |
|
|
|
Support quoted export names. |
|
|
|
Upgrade to Unicode 14. |
|
|
|
Add support for Unicode 13 properties in regular expressions. |
|
|
|
### Bug fixes |
|
|
|
Use a loop to find line breaks, because the existing regexp search would overrun the end of the searched range and waste a lot of time in minified code. |
|
|
|
## 8.6.0 (2021-11-18) |
|
|
|
### Bug fixes |
|
|
|
Fix a bug where an object literal with multiple `__proto__` properties would incorrectly be accepted if a later property value held an assigment. |
|
|
|
### New features |
|
|
|
Support class private fields with the `in` operator. |
|
|
|
## 8.5.0 (2021-09-06) |
|
|
|
### Bug fixes |
|
|
|
Improve context-dependent tokenization in a number of corner cases. |
|
|
|
Fix location tracking after a 0x2028 or 0x2029 character in a string literal (which before did not increase the line number). |
|
|
|
Fix an issue where arrow function bodies in for loop context would inappropriately consume `in` operators. |
|
|
|
Fix wrong end locations stored on SequenceExpression nodes. |
|
|
|
Implement restriction that `for`/`of` loop LHS can't start with `let`. |
|
|
|
### New features |
|
|
|
Add support for ES2022 class static blocks. |
|
|
|
Allow multiple input files to be passed to the CLI tool. |
|
|
|
## 8.4.1 (2021-06-24) |
|
|
|
### Bug fixes |
|
|
|
Fix a bug where `allowAwaitOutsideFunction` would allow `await` in class field initializers, and setting `ecmaVersion` to 13 or higher would allow top-level await in non-module sources. |
|
|
|
## 8.4.0 (2021-06-11) |
|
|
|
### New features |
|
|
|
A new option, `allowSuperOutsideMethod`, can be used to suppress the error when `super` is used in the wrong context. |
|
|
|
## 8.3.0 (2021-05-31) |
|
|
|
### New features |
|
|
|
Default `allowAwaitOutsideFunction` to true for ECMAScript 2022 an higher. |
|
|
|
Add support for the `d` ([indices](https://github.com/tc39/proposal-regexp-match-indices)) regexp flag. |
|
|
|
## 8.2.4 (2021-05-04) |
|
|
|
### Bug fixes |
|
|
|
Fix spec conformity in corner case 'for await (async of ...)'. |
|
|
|
## 8.2.3 (2021-05-04) |
|
|
|
### Bug fixes |
|
|
|
Fix an issue where the library couldn't parse 'for (async of ...)'. |
|
|
|
Fix a bug in UTF-16 decoding that would read characters incorrectly in some circumstances. |
|
|
|
## 8.2.2 (2021-04-29) |
|
|
|
### Bug fixes |
|
|
|
Fix a bug where a class field initialized to an async arrow function wouldn't allow await inside it. Same issue existed for generator arrow functions with yield. |
|
|
|
## 8.2.1 (2021-04-24) |
|
|
|
### Bug fixes |
|
|
|
Fix a regression introduced in 8.2.0 where static or async class methods with keyword names fail to parse. |
|
|
|
## 8.2.0 (2021-04-24) |
|
|
|
### New features |
|
|
|
Add support for ES2022 class fields and private methods. |
|
|
|
## 8.1.1 (2021-04-12) |
|
|
|
### Various |
|
|
|
Stop shipping source maps in the NPM package. |
|
|
|
## 8.1.0 (2021-03-09) |
|
|
|
### Bug fixes |
|
|
|
Fix a spurious error in nested destructuring arrays. |
|
|
|
### New features |
|
|
|
Expose `allowAwaitOutsideFunction` in CLI interface. |
|
|
|
Make `allowImportExportAnywhere` also apply to `import.meta`. |
|
|
|
## 8.0.5 (2021-01-25) |
|
|
|
### Bug fixes |
|
|
|
Adjust package.json to work with Node 12.16.0 and 13.0-13.6. |
|
|
|
## 8.0.4 (2020-10-05) |
|
|
|
### Bug fixes |
|
|
|
Make `await x ** y` an error, following the spec. |
|
|
|
Fix potentially exponential regular expression. |
|
|
|
## 8.0.3 (2020-10-02) |
|
|
|
### Bug fixes |
|
|
|
Fix a wasteful loop during `Parser` creation when setting `ecmaVersion` to `"latest"`. |
|
|
|
## 8.0.2 (2020-09-30) |
|
|
|
### Bug fixes |
|
|
|
Make the TypeScript types reflect the current allowed values for `ecmaVersion`. |
|
|
|
Fix another regexp/division tokenizer issue. |
|
|
|
## 8.0.1 (2020-08-12) |
|
|
|
### Bug fixes |
|
|
|
Provide the correct value in the `version` export. |
|
|
|
## 8.0.0 (2020-08-12) |
|
|
|
### Bug fixes |
|
|
|
Disallow expressions like `(a = b) = c`. |
|
|
|
Make non-octal escape sequences a syntax error in strict mode. |
|
|
|
### New features |
|
|
|
The package can now be loaded directly as an ECMAScript module in node 13+. |
|
|
|
Update to the set of Unicode properties from ES2021. |
|
|
|
### Breaking changes |
|
|
|
The `ecmaVersion` option is now required. For the moment, omitting it will still work with a warning, but that will change in a future release. |
|
|
|
Some changes to method signatures that may be used by plugins. |
|
|
|
## 7.4.0 (2020-08-03) |
|
|
|
### New features |
|
|
|
Add support for logical assignment operators. |
|
|
|
Add support for numeric separators. |
|
|
|
## 7.3.1 (2020-06-11) |
|
|
|
### Bug fixes |
|
|
|
Make the string in the `version` export match the actual library version. |
|
|
|
## 7.3.0 (2020-06-11) |
|
|
|
### Bug fixes |
|
|
|
Fix a bug that caused parsing of object patterns with a property named `set` that had a default value to fail. |
|
|
|
### New features |
|
|
|
Add support for optional chaining (`?.`). |
|
|
|
## 7.2.0 (2020-05-09) |
|
|
|
### Bug fixes |
|
|
|
Fix precedence issue in parsing of async arrow functions. |
|
|
|
### New features |
|
|
|
Add support for nullish coalescing. |
|
|
|
Add support for `import.meta`. |
|
|
|
Support `export * as ...` syntax. |
|
|
|
Upgrade to Unicode 13. |
|
|
|
## 6.4.1 (2020-03-09) |
|
|
|
### Bug fixes |
|
|
|
More carefully check for valid UTF16 surrogate pairs in regexp validator. |
|
|
|
## 7.1.1 (2020-03-01) |
|
|
|
### Bug fixes |
|
|
|
Treat `\8` and `\9` as invalid escapes in template strings. |
|
|
|
Allow unicode escapes in property names that are keywords. |
|
|
|
Don't error on an exponential operator expression as argument to `await`. |
|
|
|
More carefully check for valid UTF16 surrogate pairs in regexp validator. |
|
|
|
## 7.1.0 (2019-09-24) |
|
|
|
### Bug fixes |
|
|
|
Disallow trailing object literal commas when ecmaVersion is less than 5. |
|
|
|
### New features |
|
|
|
Add a static `acorn` property to the `Parser` class that contains the entire module interface, to allow plugins to access the instance of the library that they are acting on. |
|
|
|
## 7.0.0 (2019-08-13) |
|
|
|
### Breaking changes |
|
|
|
Changes the node format for dynamic imports to use the `ImportExpression` node type, as defined in [ESTree](https://github.com/estree/estree/blob/master/es2020.md#importexpression). |
|
|
|
Makes 10 (ES2019) the default value for the `ecmaVersion` option. |
|
|
|
## 6.3.0 (2019-08-12) |
|
|
|
### New features |
|
|
|
`sourceType: "module"` can now be used even when `ecmaVersion` is less than 6, to parse module-style code that otherwise conforms to an older standard. |
|
|
|
## 6.2.1 (2019-07-21) |
|
|
|
### Bug fixes |
|
|
|
Fix bug causing Acorn to treat some characters as identifier characters that shouldn't be treated as such. |
|
|
|
Fix issue where setting the `allowReserved` option to `"never"` allowed reserved words in some circumstances. |
|
|
|
## 6.2.0 (2019-07-04) |
|
|
|
### Bug fixes |
|
|
|
Improve valid assignment checking in `for`/`in` and `for`/`of` loops. |
|
|
|
Disallow binding `let` in patterns. |
|
|
|
### New features |
|
|
|
Support bigint syntax with `ecmaVersion` >= 11. |
|
|
|
Support dynamic `import` syntax with `ecmaVersion` >= 11. |
|
|
|
Upgrade to Unicode version 12. |
|
|
|
## 6.1.1 (2019-02-27) |
|
|
|
### Bug fixes |
|
|
|
Fix bug that caused parsing default exports of with names to fail. |
|
|
|
## 6.1.0 (2019-02-08) |
|
|
|
### Bug fixes |
|
|
|
Fix scope checking when redefining a `var` as a lexical binding. |
|
|
|
### New features |
|
|
|
Split up `parseSubscripts` to use an internal `parseSubscript` method to make it easier to extend with plugins. |
|
|
|
## 6.0.7 (2019-02-04) |
|
|
|
### Bug fixes |
|
|
|
Check that exported bindings are defined. |
|
|
|
Don't treat `\u180e` as a whitespace character. |
|
|
|
Check for duplicate parameter names in methods. |
|
|
|
Don't allow shorthand properties when they are generators or async methods. |
|
|
|
Forbid binding `await` in async arrow function's parameter list. |
|
|
|
## 6.0.6 (2019-01-30) |
|
|
|
### Bug fixes |
|
|
|
The content of class declarations and expressions is now always parsed in strict mode. |
|
|
|
Don't allow `let` or `const` to bind the variable name `let`. |
|
|
|
Treat class declarations as lexical. |
|
|
|
Don't allow a generator function declaration as the sole body of an `if` or `else`. |
|
|
|
Ignore `"use strict"` when after an empty statement. |
|
|
|
Allow string line continuations with special line terminator characters. |
|
|
|
Treat `for` bodies as part of the `for` scope when checking for conflicting bindings. |
|
|
|
Fix bug with parsing `yield` in a `for` loop initializer. |
|
|
|
Implement special cases around scope checking for functions. |
|
|
|
## 6.0.5 (2019-01-02) |
|
|
|
### Bug fixes |
|
|
|
Fix TypeScript type for `Parser.extend` and add `allowAwaitOutsideFunction` to options type. |
|
|
|
Don't treat `let` as a keyword when the next token is `{` on the next line. |
|
|
|
Fix bug that broke checking for parentheses around an object pattern in a destructuring assignment when `preserveParens` was on. |
|
|
|
## 6.0.4 (2018-11-05) |
|
|
|
### Bug fixes |
|
|
|
Further improvements to tokenizing regular expressions in corner cases. |
|
|
|
## 6.0.3 (2018-11-04) |
|
|
|
### Bug fixes |
|
|
|
Fix bug in tokenizing an expression-less return followed by a function followed by a regular expression. |
|
|
|
Remove stray symlink in the package tarball. |
|
|
|
## 6.0.2 (2018-09-26) |
|
|
|
### Bug fixes |
|
|
|
Fix bug where default expressions could fail to parse inside an object destructuring assignment expression. |
|
|
|
## 6.0.1 (2018-09-14) |
|
|
|
### Bug fixes |
|
|
|
Fix wrong value in `version` export. |
|
|
|
## 6.0.0 (2018-09-14) |
|
|
|
### Bug fixes |
|
|
|
Better handle variable-redefinition checks for catch bindings and functions directly under if statements. |
|
|
|
Forbid `new.target` in top-level arrow functions. |
|
|
|
Fix issue with parsing a regexp after `yield` in some contexts. |
|
|
|
### New features |
|
|
|
The package now comes with TypeScript definitions. |
|
|
|
### Breaking changes |
|
|
|
The default value of the `ecmaVersion` option is now 9 (2018). |
|
|
|
Plugins work differently, and will have to be rewritten to work with this version. |
|
|
|
The loose parser and walker have been moved into separate packages (`acorn-loose` and `acorn-walk`). |
|
|
|
## 5.7.3 (2018-09-10) |
|
|
|
### Bug fixes |
|
|
|
Fix failure to tokenize regexps after expressions like `x.of`. |
|
|
|
Better error message for unterminated template literals. |
|
|
|
## 5.7.2 (2018-08-24) |
|
|
|
### Bug fixes |
|
|
|
Properly handle `allowAwaitOutsideFunction` in for statements. |
|
|
|
Treat function declarations at the top level of modules like let bindings. |
|
|
|
Don't allow async function declarations as the only statement under a label. |
|
|
|
## 5.7.0 (2018-06-15) |
|
|
|
### New features |
|
|
|
Upgraded to Unicode 11. |
|
|
|
## 5.6.0 (2018-05-31) |
|
|
|
### New features |
|
|
|
Allow U+2028 and U+2029 in string when ECMAVersion >= 10. |
|
|
|
Allow binding-less catch statements when ECMAVersion >= 10. |
|
|
|
Add `allowAwaitOutsideFunction` option for parsing top-level `await`. |
|
|
|
## 5.5.3 (2018-03-08) |
|
|
|
### Bug fixes |
|
|
|
A _second_ republish of the code in 5.5.1, this time with yarn, to hopefully get valid timestamps. |
|
|
|
## 5.5.2 (2018-03-08) |
|
|
|
### Bug fixes |
|
|
|
A republish of the code in 5.5.1 in an attempt to solve an issue with the file timestamps in the npm package being 0. |
|
|
|
## 5.5.1 (2018-03-06) |
|
|
|
### Bug fixes |
|
|
|
Fix misleading error message for octal escapes in template strings. |
|
|
|
## 5.5.0 (2018-02-27) |
|
|
|
### New features |
|
|
|
The identifier character categorization is now based on Unicode version 10. |
|
|
|
Acorn will now validate the content of regular expressions, including new ES9 features. |
|
|
|
## 5.4.0 (2018-02-01) |
|
|
|
### Bug fixes |
|
|
|
Disallow duplicate or escaped flags on regular expressions. |
|
|
|
Disallow octal escapes in strings in strict mode. |
|
|
|
### New features |
|
|
|
Add support for async iteration. |
|
|
|
Add support for object spread and rest. |
|
|
|
## 5.3.0 (2017-12-28) |
|
|
|
### Bug fixes |
|
|
|
Fix parsing of floating point literals with leading zeroes in loose mode. |
|
|
|
Allow duplicate property names in object patterns. |
|
|
|
Don't allow static class methods named `prototype`. |
|
|
|
Disallow async functions directly under `if` or `else`. |
|
|
|
Parse right-hand-side of `for`/`of` as an assignment expression. |
|
|
|
Stricter parsing of `for`/`in`. |
|
|
|
Don't allow unicode escapes in contextual keywords. |
|
|
|
### New features |
|
|
|
Parsing class members was factored into smaller methods to allow plugins to hook into it. |
|
|
|
## 5.2.1 (2017-10-30) |
|
|
|
### Bug fixes |
|
|
|
Fix a token context corruption bug. |
|
|
|
## 5.2.0 (2017-10-30) |
|
|
|
### Bug fixes |
|
|
|
Fix token context tracking for `class` and `function` in property-name position. |
|
|
|
Make sure `%*` isn't parsed as a valid operator. |
|
|
|
Allow shorthand properties `get` and `set` to be followed by default values. |
|
|
|
Disallow `super` when not in callee or object position. |
|
|
|
### New features |
|
|
|
Support [`directive` property](https://github.com/estree/estree/compare/b3de58c9997504d6fba04b72f76e6dd1619ee4eb...1da8e603237144f44710360f8feb7a9977e905e0) on directive expression statements. |
|
|
|
## 5.1.2 (2017-09-04) |
|
|
|
### Bug fixes |
|
|
|
Disable parsing of legacy HTML-style comments in modules. |
|
|
|
Fix parsing of async methods whose names are keywords. |
|
|
|
## 5.1.1 (2017-07-06) |
|
|
|
### Bug fixes |
|
|
|
Fix problem with disambiguating regexp and division after a class. |
|
|
|
## 5.1.0 (2017-07-05) |
|
|
|
### Bug fixes |
|
|
|
Fix tokenizing of regexps in an object-desctructuring `for`/`of` loop and after `yield`. |
|
|
|
Parse zero-prefixed numbers with non-octal digits as decimal. |
|
|
|
Allow object/array patterns in rest parameters. |
|
|
|
Don't error when `yield` is used as a property name. |
|
|
|
Allow `async` as a shorthand object property. |
|
|
|
### New features |
|
|
|
Implement the [template literal revision proposal](https://github.com/tc39/proposal-template-literal-revision) for ES9. |
|
|
|
## 5.0.3 (2017-04-01) |
|
|
|
### Bug fixes |
|
|
|
Fix spurious duplicate variable definition errors for named functions. |
|
|
|
## 5.0.2 (2017-03-30) |
|
|
|
### Bug fixes |
|
|
|
A binary operator after a parenthesized arrow expression is no longer incorrectly treated as an error. |
|
|
|
## 5.0.0 (2017-03-28) |
|
|
|
### Bug fixes |
|
|
|
Raise an error for duplicated lexical bindings. |
|
|
|
Fix spurious error when an assignement expression occurred after a spread expression. |
|
|
|
Accept regular expressions after `of` (in `for`/`of`), `yield` (in a generator), and braced arrow functions. |
|
|
|
Allow labels in front or `var` declarations, even in strict mode. |
|
|
|
### Breaking changes |
|
|
|
Parse declarations following `export default` as declaration nodes, not expressions. This means that class and function declarations nodes can now have `null` as their `id`. |
|
|
|
## 4.0.11 (2017-02-07) |
|
|
|
### Bug fixes |
|
|
|
Allow all forms of member expressions to be parenthesized as lvalue. |
|
|
|
## 4.0.10 (2017-02-07) |
|
|
|
### Bug fixes |
|
|
|
Don't expect semicolons after default-exported functions or classes, even when they are expressions. |
|
|
|
Check for use of `'use strict'` directives in non-simple parameter functions, even when already in strict mode. |
|
|
|
## 4.0.9 (2017-02-06) |
|
|
|
### Bug fixes |
|
|
|
Fix incorrect error raised for parenthesized simple assignment targets, so that `(x) = 1` parses again. |
|
|
|
## 4.0.8 (2017-02-03) |
|
|
|
### Bug fixes |
|
|
|
Solve spurious parenthesized pattern errors by temporarily erring on the side of accepting programs that our delayed errors don't handle correctly yet. |
|
|
|
## 4.0.7 (2017-02-02) |
|
|
|
### Bug fixes |
|
|
|
Accept invalidly rejected code like `(x).y = 2` again. |
|
|
|
Don't raise an error when a function _inside_ strict code has a non-simple parameter list. |
|
|
|
## 4.0.6 (2017-02-02) |
|
|
|
### Bug fixes |
|
|
|
Fix exponential behavior (manifesting itself as a complete hang for even relatively small source files) introduced by the new 'use strict' check. |
|
|
|
## 4.0.5 (2017-02-02) |
|
|
|
### Bug fixes |
|
|
|
Disallow parenthesized pattern expressions. |
|
|
|
Allow keywords as export names. |
|
|
|
Don't allow the `async` keyword to be parenthesized. |
|
|
|
Properly raise an error when a keyword contains a character escape. |
|
|
|
Allow `"use strict"` to appear after other string literal expressions. |
|
|
|
Disallow labeled declarations. |
|
|
|
## 4.0.4 (2016-12-19) |
|
|
|
### Bug fixes |
|
|
|
Fix crash when `export` was followed by a keyword that can't be |
|
exported. |
|
|
|
## 4.0.3 (2016-08-16) |
|
|
|
### Bug fixes |
|
|
|
Allow regular function declarations inside single-statement `if` branches in loose mode. Forbid them entirely in strict mode. |
|
|
|
Properly parse properties named `async` in ES2017 mode. |
|
|
|
Fix bug where reserved words were broken in ES2017 mode. |
|
|
|
## 4.0.2 (2016-08-11) |
|
|
|
### Bug fixes |
|
|
|
Don't ignore period or 'e' characters after octal numbers. |
|
|
|
Fix broken parsing for call expressions in default parameter values of arrow functions. |
|
|
|
## 4.0.1 (2016-08-08) |
|
|
|
### Bug fixes |
|
|
|
Fix false positives in duplicated export name errors. |
|
|
|
## 4.0.0 (2016-08-07) |
|
|
|
### Breaking changes |
|
|
|
The default `ecmaVersion` option value is now 7. |
|
|
|
A number of internal method signatures changed, so plugins might need to be updated. |
|
|
|
### Bug fixes |
|
|
|
The parser now raises errors on duplicated export names. |
|
|
|
`arguments` and `eval` can now be used in shorthand properties. |
|
|
|
Duplicate parameter names in non-simple argument lists now always produce an error. |
|
|
|
### New features |
|
|
|
The `ecmaVersion` option now also accepts year-style version numbers |
|
(2015, etc). |
|
|
|
Support for `async`/`await` syntax when `ecmaVersion` is >= 8. |
|
|
|
Support for trailing commas in call expressions when `ecmaVersion` is >= 8. |
|
|
|
## 3.3.0 (2016-07-25) |
|
|
|
### Bug fixes |
|
|
|
Fix bug in tokenizing of regexp operator after a function declaration. |
|
|
|
Fix parser crash when parsing an array pattern with a hole. |
|
|
|
### New features |
|
|
|
Implement check against complex argument lists in functions that enable strict mode in ES7. |
|
|
|
## 3.2.0 (2016-06-07) |
|
|
|
### Bug fixes |
|
|
|
Improve handling of lack of unicode regexp support in host |
|
environment. |
|
|
|
Properly reject shorthand properties whose name is a keyword. |
|
|
|
### New features |
|
|
|
Visitors created with `visit.make` now have their base as _prototype_, rather than copying properties into a fresh object. |
|
|
|
## 3.1.0 (2016-04-18) |
|
|
|
### Bug fixes |
|
|
|
Properly tokenize the division operator directly after a function expression. |
|
|
|
Allow trailing comma in destructuring arrays. |
|
|
|
## 3.0.4 (2016-02-25) |
|
|
|
### Fixes |
|
|
|
Allow update expressions as left-hand-side of the ES7 exponential operator. |
|
|
|
## 3.0.2 (2016-02-10) |
|
|
|
### Fixes |
|
|
|
Fix bug that accidentally made `undefined` a reserved word when parsing ES7. |
|
|
|
## 3.0.0 (2016-02-10) |
|
|
|
### Breaking changes |
|
|
|
The default value of the `ecmaVersion` option is now 6 (used to be 5). |
|
|
|
Support for comprehension syntax (which was dropped from the draft spec) has been removed. |
|
|
|
### Fixes |
|
|
|
`let` and `yield` are now “contextual keywords”, meaning you can mostly use them as identifiers in ES5 non-strict code. |
|
|
|
A parenthesized class or function expression after `export default` is now parsed correctly. |
|
|
|
### New features |
|
|
|
When `ecmaVersion` is set to 7, Acorn will parse the exponentiation operator (`**`). |
|
|
|
The identifier character ranges are now based on Unicode 8.0.0. |
|
|
|
Plugins can now override the `raiseRecoverable` method to override the way non-critical errors are handled. |
|
|
|
## 2.7.0 (2016-01-04) |
|
|
|
### Fixes |
|
|
|
Stop allowing rest parameters in setters. |
|
|
|
Disallow `y` rexexp flag in ES5. |
|
|
|
Disallow `\00` and `\000` escapes in strict mode. |
|
|
|
Raise an error when an import name is a reserved word. |
|
|
|
## 2.6.2 (2015-11-10) |
|
|
|
### Fixes |
|
|
|
Don't crash when no options object is passed. |
|
|
|
## 2.6.0 (2015-11-09) |
|
|
|
### Fixes |
|
|
|
Add `await` as a reserved word in module sources. |
|
|
|
Disallow `yield` in a parameter default value for a generator. |
|
|
|
Forbid using a comma after a rest pattern in an array destructuring. |
|
|
|
### New features |
|
|
|
Support parsing stdin in command-line tool. |
|
|
|
## 2.5.0 (2015-10-27) |
|
|
|
### Fixes |
|
|
|
Fix tokenizer support in the command-line tool. |
|
|
|
Stop allowing `new.target` outside of functions. |
|
|
|
Remove legacy `guard` and `guardedHandler` properties from try nodes. |
|
|
|
Stop allowing multiple `__proto__` properties on an object literal in strict mode. |
|
|
|
Don't allow rest parameters to be non-identifier patterns. |
|
|
|
Check for duplicate paramter names in arrow functions.
|
|
|