Hi max,

many thanks for your answer.

> 1) double parsing problem (one parse on JSDT client side and a second parse
> on tern server/tsserver). I would like to avoid the parse on JSDT client
> side
>
> why not work on reusing the AST already available on client side and pass
> it to server side ?
>
To do that we need a common JavaScript Engine. For ternjs, node.js -> J2V8
-> Nashorn for performance.
So we could use J2V8, but it will require that we must implement some
node.js module like "fs" which are consumed in some tern plugins for some
features (like completion for required module)

For TypeScript, in my case I use tsserver which is linked to node.js. I
could implement my own Language Service Host (as TypEcs, and Eclipse
TypeScript have done), but I think it's a bad idea:

 * VSCode works with tsserver and tsserver manage a lot of logic like the
use of tsconfig.json
 * tsserver is available when you install TypeScript, so with
typescript.java, it's very easy to change version of TypeScript
(with TypEcs, and Eclipse TypeScript, you need to recompile the plugins,
and you are not sure that it works) .


> Thought that was one of the advantages we could do know by using esprima
> to parse client side.
>
> 2) peformance problem with big file which can take 30 secs (see
> https://bugs.eclipse.org/bugs/show_bug.cgi?id=490898)
>
> That one does look nasty.
>

Yes I know -(


> 3) disable validation of the WTP Validator because Esprima throw errors
> with TypeScript syntax (ex: var s: string) and tsserver is able to validate
> js, ts files.t).
>
> If this internal AST cannot be disable (with an extension point?), I tell
> me if I must implement my own editor (I would like to avoid doing that).
>
> Since you are doing TypeScript I think you'll need to *anyway* as long as
> Eclipse
> don't have a generic editor fwk to extend. But Gorkem and guys knows
> better what
> is feasible.
>
You mean that I should implement my own TextEditor?

Regard's Angelo

> /max
> http://about.me/maxandersen
>
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