libclang completion doesn't work with clang version > 3.6 about easyclangcomplete HOT 20 CLOSED

Hm, ok. This sounds very logical. I believe, I will have to rework the way I manage cindex. It is a pain to work with libclang python bindings :)

On ubuntu, if you install clang 3.8 you don't get libclang.so, you get libclang-3.8.so.1. This is one issue. I guess, I will reopen it separately.

The other one is the issue with std namespace not being recognized. I encountered the same error on my machine yesterday, and for now I don't know what causes it. It was not there before, so I will probably try different releases to try to find where I have introduced this bug.

Sorry for the inconvenience. I will keep you posted as soon as I find out anything.

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Also, why do you use -std=gnu++1z? Any particular reason for this? Why not -std=c++1z? Can you try it?

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I have moved discussions about searching for a correct .so file to another issue #22

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It is same with all other flags (c++11, c++14, c++1z).

I don't think that the issue is related to namespace std. In libclang mode I have no completions at all, even for classes declared in the same file or any other namespace (e. g. boost).

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Could you also provide the file you are testing it on?

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You can use literally any file, for example test.cpp and test_vector.cpp from tests/

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Unfortunately I am clueless for now. I've just learned from issue #23 that libclang 3.8 can misbehave. Could you try the plugin with another version of clang? Like 3.6? If it is a hassle for you, I will try to install clang 3.8 on my system and see what happens.

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Same for clang 3.7.1

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May I still ask you to try clang 3.6? This is the one I have tested it on. Then we can have some common ground. For now I cannot reproduce the behavior.

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Wow! It works on clang 3.6.2 in libclang mode (after appropriate fix in cindex36.py).

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Am I right that you are using some python3 port of official libclang python bindings, with different release of cindex.py for each version of clang?
Something works with clang 3.8 if I replace cindex38.py with the one from this repo https://bitbucket.org/Anteru/python3-libclang

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Yep, I am using a port of bindings, and they are far from guaranteed to be right. Thank you for a suggestion.

May I ask which change did you do in cindex36?

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I had to change libclang.so file name to make it work on my system. This is about #22, not about this issue.

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Ok, I understand. then it seems that the fix would be to use libclang that you linked for clang version 3.8 (and I will adapt the official ones for 3.7). And then solving issue #22 Then this issue will be closed.

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Unfortunately that one doesn't work out of box. I didn't check it thoroughly, but sometimes it throws errors instead of completions.

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Ok, thanks for all that info. Then I will probably try to adapt the official ones to run with Python 3

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I had a look at the current cindex38.py and it is exactly the same as the official one after running 2to3 on it and enforcing utf8 encoding. So I don't have any further idea what could be happening. I have installed clang 3.8 on my system and I do not get autocompletions just as in your case. In addition to that if I try it multiple times plugin_host eventually crashes.

I have tried to annotate what is being called from cindex 3.8 with no luck. Also I tried to blatantly replace cindex3.8.py with the contents of cindex3.6.py and it did not change the behavior by even a slightest bit. But the plugin_host does not crash :)

So, now I am totally clueless. I will continue searching what can cause this, maybe somebody has encountered this. For now, I suggest using clang 3.6

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Although, after using the cindex that you have linked: https://bitbucket.org/Anteru/python3-libclang the completions seem to work. I will keep that version for now. Will push it in the upcoming days.

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Also, seems like the relevant fix is inspired by http://reviews.llvm.org/D17226 as referenced here in the new cindex38.py

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@riazanovskiy I have replaced cindex38.py by another version and it is working for me with clang 3.8. Can you try it out? I will close the issue for now, but feel free to reopen if something is not working.

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