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Re: [wtp-dev] Fwd: [epp-dev] Neon RC2 packages

From: Ilya Buziuk <ibuziuk@xxxxxxxxxx>
Sent: Monday, May 30, 2016 7:28 AM
Subject: Re: [wtp-dev] Fwd: [epp-dev] Neon RC2 packages
To: General discussion of project-wide or architectural issues. <wtp-dev@xxxxxxxxxxx>

On Mon, May 30, 2016 at 11:17 AM, Mickael Istria <mistria@xxxxxxxxxx> wrote:
Thanks for the info Eugene.
About IP and license, would it be possible for JSDT to embed such a TS server to generate an AST-ish that we could use for such navigation/refactoring operations?

As I recall, CQ for shipping node is already opened but not yet approved. I guess, if it will be approved the next logical  step will be opening CQ for using tsserver. Anyway, It looks like support of language services in JSDT is not going to happen early than Oxygen.  For Neon.1 the plan is to replace esprima with closure compiler, while still using DOM AST model (converting from Closure's Internal Representation will be required). 

We already have a CQ for typescript language services. If we can get approval for both node.js and typescript we do plan to move JSDT services  to use a language server. 

Looking at the current state of JSDT, it seems like most features depending on AST are broken. So there are 2 ways to go AFAIK: dropping the legacy AST and using another model (such as the TS one) directly, or having the parsers populating an AST. I feel like the first one is more sustainable and
We are still producing AST, the problems are mostly due to features depending on the internal data or behaviour of the old parser. We can probably move and fix some of them by using AST but my first choice is to use a language server and remove implementation out of JSDT.

requires more effort.
Mickael Istria
Eclipse developer at JBoss, by Red Hat
My blog - My Tweets

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