Symbol info command works only in sync mode

[marxin]

With my recent VIM:

vim --version
VIM - Vi IMproved 8.0 (2016 Sep 12)

The symbol info command runs, I can verify that in rdm.log file. I can also verify that rtags#SymbolInfoHandler is called. However the editor blinks and not info is displayed.
On the other hand, setting:

s:rtagsAsync = 0

works for me.

[marxin]

First bad revision: c6dcdd4

[marxin]

And it works fine in NeoVim.

[bartlibert]

The same issue is also present when using ProjectList

[mckellyln]

For ProjectList I did this -

function! rtags#ProjectList()
    "call rtags#ExecuteThen({ '-w' : '' }, [function('rtags#ProjectListHandler')])
    let result = rtags#ExecuteRC({ '-w' : '' })
    call rtags#ExecuteHandlers(result, [function('rtags#ProjectListHandler')])
endfunction

until I or someone else can figure out the problem with the channel output

[ziegfeld]

like what mckellyln said, change SymboInfo() in rtags.vim to the below will work

function! rtags#SymbolInfo()
    "call rtags#ExecuteThen({ '-U' : rtags#getCurrentLocation() }, [function('rtags#SymbolInfoHandler')])
    let result = rtags#ExecuteRC({ '-U' : rtags#getCurrentLocation() })
    call rtags#ExecuteHandlers(result, [function('rtags#SymbolInfoHandler')])
endfunction

[Barricade]

Any update on this?

[mckellyln]

Hi. I'll go figure it out. I used the synchronous method long ago and left it that way, but I did make some changes to the async code for other reasons and will re-visit this.

[mckellyln]

I found two issues, 1). the vim job handler did not always get all data, especially if the cmd ended quickly. And 2). the output from the async handler has ^@ (NUL) at the end of each line in the list and the join() then does not echo multiple lines correctly.
I fixed these things in my branch, but I also made other changes/improvements.
I test with vim thoroughly but not yet with neovim so I need to do that.
For now, I would just change the two lines in your copy of the plugin to use sync call for this function as shown above.