Previously the YCM Vim client would go bonkers when ycmd crashed. Now the user
can continue using Vim just without YCM functionality.
Also added a :YcmRestartServer command to let the user restart ycmd if it
crashed. With a little luck, this will be rarely necessary.
This means we can now load just ycm_client_support (which is a much smaller
library) into Vim and ycm_core into ycmd. Since ycm_client_support never depends
on libclang.so, we never have to load that into Vim which makes things much,
much easier.
This happened when moving the cursor in normal mode. The problem was that we
were calling SyntasticCheck on every cursor move because YCM would think that
the FileReadyToParse event processing returned diagnostics... but YCM only
integrates with Syntastic for C-family files.
Fixed by only triggering SyntasticCheck in C-family files.
Now, every FileReadyToParse event returns diagnostics, if any. This is instead
of the previous system where the diagnostics were being fetched in a different
request (this caused race conditions).
There appear to be timing issues for the diag requests. Somehow, we're sending
out-of-date diagnostics and then not updating the UI when things change.
That needs to be fixed.
This is still fast & efficient because if we detect that the buffer hasn't been
changed (by examining b:changedtick), the parse doesn't proceed.
In effect, we now make sure we parse the file after every change to the buffer
as soon as that change happens. This means that compilation error feedback will
now be much, MUCH quicker.
We used to do it on buffer enter and cursor hold. Doing it on insert leave too
produces much quicker compilation error feedback when editing C-family code
because the user doesn't have to wait for the next cursor hold event.
For now, doing it just for detecting whether a change was made on move in insert
mode.
Using b:changedtick instead of our homebrew way of detecting the changed should
be both faster and more robust.
If the user forced YCM to not register itself as the Syntastic checker, we
should not be calling SyntasticCheck since that would slow down everything.
Fixes#416
For instance (`|` represents the cursor):
1. Buffer state: `foo.|bar`
2. A completion candidate of `zoobar` is shown and the user selects it.
3. Buffer state: `foo.zoobar|bar` instead of `foo.zoo|bar` which is what the
user wanted.
This commit resolves that issue.
It could be argued that the user actually wants the final buffer state to be
`foo.zoobar|` (the cursor at the end), but that would be much more difficult
to implement and is probably not worth doing.
Fixes#374.
Now the user has the option of writing custom logic before ycm_core.so is
loaded. This can be used to dynamically change the location of where ycm_core.so
is loaded by prepending paths to sys.path.
Very, very few people will need this feature, but I'm one of them so there.
Added the `g:ycm_autoclose_preview_window_after_insertion` option
(similar to `g:ycm_autoclose_preview_window_after_completion`).
If set, the preview window is automatically closed when the user leaves
insert mode.
VimScript is not Python so "!some_string" does not return false when some_string
is not empty (it _does_ return true when some_string _is_ empty). I of course
know this, but my fingers like to forget it from time to time.
This provides a framework for completer-writers to create
completer-specific commands. I have in mind to use this for the clang
completer to force reloading of a flags module via `:YcmCompleter reload`.
Previously, Syntastic would pick YCM as the default checker if YCM was
installed. The new Syntastic API does not do this. I don't know is this a bug or
not (talking to upstream), but until it's resolved, YCM has to force the use of
itself.
This was intended to show the full clang output for a given diagnostic,
including notes. But it appears that libclang does not provide this
functionality...
The vim-notes plugin adds 'longest' to completeopt in its filetype plugin. This
breaks ycm. The result is that the user can't type at all after a notes file has
been visited.
We work around this by setting our completeopt settings on every buffer visit
and CursorHold event.
The problem was caused by a race condition of all things. ClangCompleter would
set possibly_completions_ready when starting the first parse pass for the file
and then would try to extract diagnostics for the file before the diagnostics
were done. Technically this was not a problem because only an empty diagnostics
vector would be returned, but this triggered Syntastic because hey, we have some
diagnostics to show (even though we don't).
And then Syntastic would try to close the location list window during startup
when this operation is not available. Technically it's Syntastic's fault, but a
more principled way to check for done diagnostics is to return and use a future
for file parsing operations and this solution also works around the Syntastic
issue.
On rare occasions a bug can occur where the user is trying to type text but the
completion system is erasing it as he types. I believe this new approach should
fix that problem. It also replaces the old system for preventing an infinite
loop to occur when there are no completions to show to the user.
This change should fix the random hangs and segfaults when using the clang
completer. Also, assertion errors printed to the console on vim exit should go
away too, same thing with segfaults on vim exit. These "on exit" errors were
caused by not cleanly shutting down the background threads; both the identifier
completer and the clang one now join the threads on destruction. This results in
a clean shutdown.
The new clang completer architecture now uses only one clang thread (again)
instead of a completion and parsing thread. Since the parsing task needs to wait
on the completion task if it was started first (and vice-versa) there's no point
to using two threads. The desired "simplicity" of using two threads for these
two tasks actually created needless complexity (and bugs). Sigh. Such is life.
A TranslationUnit abstraction was also created and this in turn also reduces the
complexity of the clang completer.
The clang completer now also has some (very) basic tests.
The user can opt-out of this, but we set it by default since most people don't
know that the option exists. Those that are annoyed by it can just toggle an
option in their vimrc.
