Hi Gorkem,

2016-04-07 15:09 GMT+02:00 Gorkem Ercan <gorkem.er...@gmail.com>:

>
> Hi Angelo,
> You seem to be concentrated on typescript nowadays.
>

Yes because I would like to support Angular2
https://github.com/angelozerr/angular2-eclipse based on typescript.java


> Does that mean you have abandoned tern.java?
>

No, don't be afraid with that! I will continue to maintain tern.java but
here my motivation to work a lot for typescript.java where the integration
looks like tern.java:

 * ternjs is not very active today. It misses some features like support
for multiple signature for methods. TypeScript is very very active, it
supports multiple signature for methods, support JSX and more.
 * I'm limitated with JSDT Editor  to add new features like override
outline, generate comments (with type), refactoring. With typescript.java,
I have now a custom TypeScript Editor which uses JSDT features for syntax
coloration, matching bracket (lightweight editor) and which is very fast
when you open a big file (because I don't need AST). More I will able to
add refactor, outline, Ctrl+Shift+G by using tsserver without be blocked by
JSDT AST and JSDT nature that I don't use it because I don't need Install
Path, etc (Ctrl+Shift+G throws an error if your project has not JSDT nature
for instance)
 * I would like to support Angular2. See
https://github.com/angelozerr/angular2-eclipse which is based on
typescript.java
 * TypeScript is improving the inference engine to use it for JavaScript
(called Salsa). Visual Studio has switched to Salsa. typescript.java is
able to support too JavaScript with Salsa. The inference engine is less
powerfull than ternjs, but Micosoft guys are working a lot about this
feature.
 * tsserver is very fast even with large project with big files. I try to
implement typescript.java like VSCode to have the same fast features and it
starts working well (compare to existing Eclipse TypeScript): completion,
hover, hyperlink, validation are implemented and it is fast even with big
project. I have used timeout in order to not freeze Eclipse when tsserver
takes time.
 * The main problem with tsserver is that it is not extensible (like ternjs
provide with custom plugin) but they are working hard for that. See demo
with Angular2 at https://github.com/Microsoft/TypeScript/issues/6508 When
it will available, typescript.java could provide that.

I think more and more that tsserver is the very good solution for inference
engine and for JavaScript too (not only TypeScript). My main goal is to
provide the same powerful feature than WebStorm and VSCode want to do that
too, tsserver is everytime improved  for VSCode and I can benefit with this
feature too:)

Hope you will understand my motivation.

Regard's Angelo

> —
> Gorkem
>
>
>
> On 7 Apr 2016, at 3:33, Angelo zerr wrote:
>
> Hi Eugene,
>>
>> Many thanks for your feedback!
>>
>> At first please read my post at
>> http://dev.eclipse.org/mhonarc/lists/wtp-dev/msg09842.html
>>
>> I have started to implement my idea with TypeScript Editor and it starts
>> working great, in other words when I edit a big ts file, I have a very
>> fast
>> performance because I don't use an AST:
>>
>>  * syntax coloration is done with Eclipse ITokenScanner (I have reused the
>> JSDT JavaCodeScanner)
>>  * code folding that I'm implementing is done according tabulation
>>
>> My conclusion is to create an AST only on background and not when a ts
>> file
>> is editing like JSDT does today. This AST should be used only for
>> inference
>> engineckgr (or filll outline on background) and not for features like
>> syntax coloration, code folding, etc (it's the idea of VSCode which is so
>> fast).
>>
>> My TypeScript Editor is a lightweigt editor that it could be used for
>> JavaScript too. In my case the build of AST is done on background with
>> tsserver. Hyperlink, completion, validation, hover call the tsserver
>> (inference engine) with a timeout and if it takes too time, it doesn't
>> freeze Eclipse. User has not available result of completion when inference
>> engine takes too time the first time but eclipse doesn't freeze. When
>> inference engine has finished to compute AST and other inference jobs,
>> completion is available. If JSDT could provide a lightweiht editor,
>> tern.java could be very fast too.
>>
>> Perhaps I have missed something, but today my TypeScript Editor is very
>> fast with large file when user open a big ts file.
>>
>> Regard's Angelo
>>
>>
>>
>>
>>
>> 2016-04-07 9:00 GMT+02:00 Eugene Melekhov <e...@mail.ru>:
>>
>> Hi all,
>>>
>>> I've been working on accommodation of the JSDT core to ES6, new esprima
>>> parser etc. Right now I'm working on restoring
>>> so called "bindings" used for code assistance etc.
>>>
>>> I will finish the job that I've started and will implement initial
>>> bindings resolver for single source but... I must admit
>>> that in my opinion what we're doing at the moment is wrong.
>>>
>>> * We're trying to reuse old dom model inherited from JDK which is not
>>> fully compliant with JS reality even after
>>>  addition of ES6 specific constructs.
>>>
>>> * This model is not very convenient for internal and especially external
>>> use.
>>>
>>> * We have to convert this model to fro JSON/other AST formats.
>>>
>>> * Integration with JS modules like esprima or Tern or anything alike is
>>> resource consuming, complex, opaque, error prone
>>>  etc.
>>>
>>>
>>> So, what is the right way in my opinion? The answer is to completely
>>> abandon or internal representation (ASTDom) model,
>>> esprima parser and any other JS based tools like Tern and switch to using
>>> Google closure compiler infrastructure instead.
>>>
>>> This approach has the following advantages:
>>>
>>> * Closure compiler is fast
>>>
>>> * It's written in Java and there are no problem with integration.
>>>
>>> * It's a mature project with vast and VERY active community
>>>
>>> * It has it's own perfect internal representation (IR) and it's possible
>>> to use just AST(rhino trees) if necessary
>>>
>>>
>>> https://github.com/google/closure-compiler/tree/master/src/com/google/javascript/rhino
>>>
>>> * IR has great traversal infrastructure
>>>
>>>
>>> https://github.com/google/closure-compiler/blob/master/src/com/google/javascript/jscomp/NodeTraversal.java
>>>
>>> * IR and a pluggable compiler allows to perform all tasks that we need.
>>> IR
>>> can be used for for outline
>>>    view, symbol tables for code assist, search, navigation, auto
>>> completion, refactoring and so on.
>>>
>>> * It has call graphs, type flow graphs, type inference out of the box.
>>>
>>>
>>> https://github.com/google/closure-compiler/blob/master/src/com/google/javascript/jscomp/TypeInference.java
>>>
>>> * It has code validation, lint etc
>>>
>>>
>>> https://github.com/google/closure-compiler/tree/master/src/com/google/javascript/jscomp/lint
>>>
>>> * It has code printer
>>>
>>>
>>> https://github.com/google/closure-compiler/blob/master/test/com/google/javascript/jscomp/CodePrinterTest.java
>>>
>>> * It's possible to use it's IR to perform any other necessary tasks like
>>> more elaborate type analysis that TAJS does.
>>>
>>>
>>>
>>> In conclusion, I believe JSDT should switch to Google closure compiler
>>> back-end as soon as it possible before it's too
>>> late. It would allow to forget about almost all low-level problems and
>>> concentrate on implementing functionality that is
>>> visible and is really necessary for JSDT users:
>>>
>>> * Fast modern editor
>>>
>>> * Elaborate code assistance
>>>
>>> * Smart navigation
>>>
>>> * Smart refactoring
>>>
>>> * Integration of v8, node, npm, gulp, babel etc
>>>
>>> * Debugging
>>>
>>> * JSX support
>>>
>>> * and so on, you name it
>>>
>>>
>>> Thank you.
>>>
>>>
>>> --
>>> Eugene Melekhov
>>>
>>> _______________________________________________
>>> wtp-dev mailing list
>>> wtp-dev@eclipse.org
>>> To change your delivery options, retrieve your password, or unsubscribe
>>> from this list, visit
>>> https://dev.eclipse.org/mailman/listinfo/wtp-dev
>>>
>>> _______________________________________________
>> wtp-dev mailing list
>> wtp-dev@eclipse.org
>> To change your delivery options, retrieve your password, or unsubscribe
>> from this list, visit
>> https://dev.eclipse.org/mailman/listinfo/wtp-dev
>>
> _______________________________________________
> wtp-dev mailing list
> wtp-dev@eclipse.org
> To change your delivery options, retrieve your password, or unsubscribe
> from this list, visit
> https://dev.eclipse.org/mailman/listinfo/wtp-dev
>
_______________________________________________
wtp-dev mailing list
wtp-dev@eclipse.org
To change your delivery options, retrieve your password, or unsubscribe from 
this list, visit
https://dev.eclipse.org/mailman/listinfo/wtp-dev

Reply via email to