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acornjs / acorn

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masterunreleased

8.8.28.8.1

Reading changes from the repo…

·24 commits·13 pull requests

New Features

Parser: Introduce support for Unicode version 15 and add new Unicode properties for ECMAScript 2023, enhancing compatibility with the latest language features.

Improvements

Parser: Improve the handling of default options in test262 runs by using the latest ECMAScript version, ensuring more accurate testing against current standards.
Parser: Enhance the parser's ability to handle astral identifier characters in specific contexts, preventing incorrect parse errors.

Fixes

Fix a bug that incorrectly sets the allowHashBang option to false when not provided, ensuring expected behavior for ECMAScript versions 14 and above.
Resolve a parsing issue that occurs with astral identifier characters after let and newline in substatement contexts, improving overall parsing accuracy.
Fix a typo that caused a TypeError when accessing the allowHashBang property, enhancing stability.

Others

Remove unused parameters and arguments from the codebase, streamlining the parser and improving maintainability.