Alis of package name in Eclipse

[wahtherewahhere]

import newName "package"

func main() {
    package.xxx // <-- work fine.
    newName.    // <-- not work
}

The alis name of package won't autocomplete at all.

Version
Eclipse: Build id: 20130225-0426 (Juno)
Golipse: 0.7.6v439
Gocode: Newest Version ( Today )
Go: go1.1

[DisposaBoy]

FWIW, this works in GoSublime and the latest gocode for me. Are you sure there isn't more to the source code than the snippet you type up?

[nsf]

It looks weird, yes, this "feature" worked for years and does work. If you can give me an exact file where it fails on goclipse, I can try it on one of other editors. By exact file I mean of course a short example if you can make one. Sure bugs are possible, but I need a way to reproduce them.

[wahtherewahhere]

Well...it works fine in new empty project.
But this feature doesn't work to my old project I create before.
Maybe the long line of code make GoCode confuse ?

[nsf]

As I said, maybe it is a bug indeed. But I need a way to reproduce it. You can try shrinking your "old project" line by line until bug disappears and it may give me some clue where it happens. And perhaps you can actually create a minimalistic example of the reproducable case.

Also maybe it's some weird cache bug, try restarting gocode and see if it fixes the problem. gocode close to restart it (the client will automatically start a fresh server instance on the next request). Or well, I don't know how goclipse handles gocode.

[wahtherewahhere]

Ok, I think I found the problem.
I use chinese comment and string object, it make the GoCode wrong.
The file is utf-8.

[nsf]

It shouldn't be a problem. Gocode understands utf-8 just fine. Perhaps goclipse passes a wrong cursor position.

[nsf]

Here's the thing, eclipse has this API function: computeCompletionProposals(ITextViewer viewer, int offset). Unfortunatelly it's not documented whether offset is in bytes or characters or what else: http://help.eclipse.org/indigo/index.jsp?topic=%2Forg.eclipse.platform.doc.isv%2Freference%2Fapi%2Forg%2Feclipse%2Fjface%2Ftext%2Fcontentassist%2FIContentAssistProcessor.html

So, I'll keep trying to figure that out and let you know. GoClipse passes that offset assuming it's offset in characters.

[nsf]

Also if you can give me a short example with the chinese comment where goclipse fails, that would be nice. I'll try it in my text editor and see if it works there.

[wahtherewahhere]

Here it's ~

package main

import (
  em "github.com/spontaneous01/GoEventModel"
)

func main() {
  em.GetEventEmitter()    // <--- still work fine
  // 實體
  em.   // <--- broken after the chinese comment
               //  ^--  two chinese character make the cursor shift left one bit
               //            ^-------- that means if I type one more word after the dot, gocode will back again.
}

[wahtherewahhere]

I found that some chinese character can pass, some others cannot.
Here is the code:

package main

import (
    "fmt"
)


func main() {
    fmt.Printf("")    // work
    //世界
    fmt.Printf("")    // work
    //體
    fmt.  // need one more english character to trigger the right list
    //體體體體
    fmt. // broken, if the chinese character above display more than one time
}

[wahtherewahhere]

http://www.moransoft.com/chinesecode.html
UTF-8 code:
體 e9ab94
界 e7958c

[nsf]

It works just fine in emacs as you can see on the screenshot. Then it must be a goclipse problem.
(Sorry for the ugly font on the screenshot, normally I use editors in a terminal, but the font I use there doesn't display chinese correctly, had to open emacs in a gui with whatever font it has by default)

[nsf]

If some chinese characters pass and some doesn't. It could be a utf-16 issue. Java uses utf-16 for strings as far as I know and in that case cursor position must be in utf-16 code points and as we know, some unicode code points are encoded using two utf-16 code points. Really we should ask goclipse guys, they know better why it happens.

[nsf]

And your "fmt" example works in emacs as well, all four cases.

[wahtherewahhere]

Thanks a lot.
I'll open an issue to them !

[nsf]

Try a different text editor is my advice :) Like GoSublime or something.

[wahtherewahhere]

I'll try :3
Thanks~~