No not out-of-the-box. We have some rudimentary start of a javascript grammar somewhere (the SDF2 grammar which can be transformed to Rascal), but I am guessing it would take some serious work to make it ready for simple AST transforms.
Does Rascal have language support for parsing and transforming Javascript?
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28-09-2022 - |
سؤال
I'm trying to make modifications to javascript files (in fact multiple prog. languages, but javascript will do for the moment), in an automated manner.
I came across Rascal as a meta-programming language. I'm just wondering if it already has support for parsing and transforming Javascript, the way it has for Java (through lang::Java)?
Where should I be looking, to start making simple AST transforms like adding a statement, before a return, etc?
المحلول
نصائح أخرى
We have pretty good Javascript (ES5) grammar in the standard library in lang::javascript::saner::Syntax
. (See here: https://github.com/cwi-swat/rascal/blob/master/src/org/rascalmpl/library/lang/javascript/saner/Syntax.rsc)
This grammar has two limitations:
- Semi-colons are required.
- No support for comma expressions.
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