AST in JSON format

Brendan Eich brendan at
Mon Dec 7 18:31:21 PST 2009

On Dec 7, 2009, at 11:16 AM, Maciej Stachowiak wrote:

> On Dec 7, 2009, at 10:11 AM, Brendan Eich wrote:
>> [snip...] Compression at the transport (session, whatever, the  
>> model is climbing the traditional layering) is a separate issue.
> Given the above, do you think there is a valid case to be made for a  
> serialization format other than JavaScript source itself?

No, I do not. I've cooled on the idea since last talking about it on  
this list.

But as Mark pointed out in reply (sorry, I've been off-net all day and  
am only now catching up) a JsonML AST encoding standard would help  
certain programs. Narcissus could be a lot faster if it could call a  
standard method to parse its source into such a JSON object tree and  
then execute that, for example (almost all profiled time running  
Narcissus is in its lexer and parser).


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