Comments (1)
adams85
commented on August 23, 2024
1
Short answer: full fidelity (or concrete) syntax (including trivia) is not supported currently.
Long answer: Esprima is based on the ESTree specification, which doesn't implement full fidelity syntax. There is an open proposal though, without a clear perspective.
But even if such thing gets spec'ed, it's unlikely that it will ever land here. Besides the fact that implementing it would be a huge amount of work, there are also other aspects to take into account:
[...] because its main consumer is Jint, which wouldn't want to pay the price of a more detailed AST model.
(Quote from a related discussion).
So, I'm pretty certain that full fidelity syntax can only happen in a fork.
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Related Issues (20)
- Version 3.0.0-beta-10 suffix problem HOT 10
- Import Assertions (aka Import Atributes) are back at stage 3 so we should add them again HOT 2
- Inconsistencies with ESTree HOT 1
- Decorator parsing is too forgiving
- Remove obsolete APIs
- Update readme HOT 5
- Issue with parsing import statement HOT 4
- IndexOutOfRangeException when parsing `#`
- Error parsing empty JSX element HOT 2
- Error parsing literal with weird characters
- Issues with optional chaining HOT 8
- Issues generating nested logical expressions HOT 1
- Issue with parsing spread operator HOT 1
- Some RegExp adaptation tests fail on NET 8 HOT 1
- Sequence expressions not formatted "correctly" HOT 2
- Minor parser issues that incorrectly pass tests
- Unable to modify Arguments Literal value from AST using AstRewriter HOT 1
- Any sample code or docs for modifying AST nodes?
- About how to easily add, delete, modify the AST node structure
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