[cfe-dev] Some error in clangd

[yus via cfe-dev]

Hi,

By the way,
If a header has no source file (*.cpp), how it been handled.

Brs,
Su Yu

yus <suyu.nu at gmail.com> 于2019年3月22日周五 下午7:37写道：

> Hi,
>
> Many thanks for your prompt answer.
> It's an open source project.
> But it's a little difficult to build. It has many dependency
> Hope it can help.
> https://github.com/EOSIO/eos
>
> Thanks.
>
> Brs,
> Su Yu
>
>
>
> Ilya Biryukov <ibiryukov at google.com> 于2019年3月22日周五 下午5:18写道：
>
>> Hi Su,
>>
>> Since compile_commands.json only contains compile commands for .cpp
>> files, we use a heuristics-based approach to infer compile commands for
>> headers.
>> More precisely, based on the path to the header file we try to guess the
>> best .cpp file for a header (e.g. an implementation file) and pick the
>> compile command from it.
>>
>> In your case, we fail to guess a good compile command. I don't know of a
>> good workaround, unfortunately.
>> +Sam McCall <sammccall at google.com> is the author of this approach, he
>> might have ideas on how to fix this.
>>
>> Is the project you're working on open-source? If so, could you provide a
>> link to the source code? If not, compilation database should also be enough
>> to reproduce.
>>
>>
>> On Thu, Mar 21, 2019 at 10:41 PM yus via cfe-dev <cfe-dev at lists.llvm.org>
>> wrote:
>>
>>> Hi,
>>> I encounter an error in clangd
>>>
>>> I[12:49:12.197] Updating file
>>> /root/workspace/eos4/libraries/chain/include/eosio/chain/types.hpp with
>>> command* [/root/workspace/eos4/build/libraries/wasm-jit/Source/IR] */usr/bin/clang++-4.0
>>> -D ENABLE_SIMD_PROTOTYPE=0 -D ENABLE_THREADING_PROTOTYPE=0 -D
>>> IR_API=DLL_EXPORT -D PRETEND_32BIT_ADDRESS_SPACE=0 -D WAVM_METRICS_OUTPUT=0
>>> -I /root/workspace/eos4/libraries/wasm-jit/Include -I
>>> /root/workspace/eos4/libraries/wasm-jit/Include/IR -Wall
>>> -Wno-invalid-partial-specialization -O3 -D NDEBUG -c -std=gnu++14
>>> /root/workspace/eos4/libraries/chain/include/eosio/chain/types.hpp
>>> -resource-dir=/root/.vim/bundle/YouCompleteMe/third_party/ycmd/third_party/clang/lib/clang/7.0.0
>>> V[12:49:12.199] Preamble for file
>>> /root/workspace/eos4/libraries/chain/include/eosio/chain/types.hpp cannot
>>> be reused. Attempting to rebuild it.
>>> V[12:49:12.238] Built preamble of size 213512 for file
>>> /root/workspace/eos4/libraries/chain/include/eosio/chain/types.hpp
>>> I[12:49:12.242] Dropped diagnostic outside main file: : too many errors
>>> emitted, stopping now
>>>
>>> some other file in same folder update correctly
>>>
>>> I[12:49:03.898] Updating file
>>> /root/workspace/eos4/libraries/chain/include/eosio/chain/resource_limits.hpp
>>> with command *[/root/workspace/eos4/build/libraries/chain] */usr/bin/clang++-4.0
>>> -I /root/workspace/eos4/libraries/chain/include -I
>>> /root/workspace/eos4/build/libraries/chain/include -I
>>> /root/workspace/eos4/libraries/chain/../wasm-jit/Include -I
>>> /root/workspace/eos4/libraries/chain/../../externals/binaryen/src -I
>>> /root/workspace/eos4/libraries/utilities/include -I
>>> /root/workspace/eos4/libraries/utilities/../wasm-jit/Include -I
>>> /root/workspace/eos4/libraries/fc/include -I /root/opt/boost/include -I
>>> /usr/local/include -I /root/workspace/eos4/libraries/fc/vendor/websocketpp
>>> -I /root/workspace/eos4/libraries/chainbase/include -I
>>> /root/workspace/eos4/libraries/wasm-jit/Source/Runtime/../../../chain/include
>>> -I /root/workspace/eos4/libraries/softfloat/source/include -I
>>> /root/workspace/eos4/libraries/softfloat/source/8086-SSE -I
>>> /root/workspace/eos4/libraries/softfloat/build/Linux-x86_64-GCC -I
>>> /root/workspace/eos4/libraries/builtins -I
>>> /root/workspace/eos4/libraries/builtins../softfloat/source/include -Wall
>>> -Wno-invalid-partial-specialization -O3 -D NDEBUG -c -std=gnu++14
>>> /root/workspace/eos4/libraries/chain/include/eosio/chain/resource_limits.hpp
>>> -resource-dir=/root/.vim/bundle/YouCompleteMe/third_party/ycmd/third_party/clang/lib/clang/7.0.0
>>> V[12:49:03.901] Preamble for file
>>> /root/workspace/eos4/libraries/chain/include/eosio/chain/resource_limits.hpp
>>> cannot be reused. Attempting to rebuild it.
>>> V[12:49:10.676] <<<
>>> {"id":"3","jsonrpc":"2.0","method":"textDocument/definition","params":{"position":{"character":51,"line":53},"textDocument":{"uri":"file:///root/workspace/eos4/libraries/chain/include/eosio/chain/resource_limits.hpp"}}}
>>>
>>> I don't know why, and what's the difference. why the flags are different.
>>> How to fix the problem
>>>
>>> root at 39470746ee31:~/workspace/eos4# /usr/bin/clang++-4.0 -D
>>> ENABLE_SIMD_PROTOTYPE=0 -D ENABLE_THREADING_PROTOTYPE=0 -D
>>> IR_API=DLL_EXPORT -D PRETEND_32BIT_ADDRESS_SPACE=0 -D WAVM_METRICS_OUTPUT=0
>>> -I /root/workspace/eos4/libraries/wasm-jit/Include -I
>>> /root/workspace/eos4/libraries/wasm-jit/Include/IR -Wall
>>> -Wno-invalid-partial-specialization -O3 -D NDEBUG -c -std=gnu++14
>>> /root/workspace/eos4/libraries/chain/include/eosio/chain/types.hpp
>>> -resource-dir=/root/.vim/bundle/YouCompleteMe/third_party/ycmd/third_party/clang/lib/clang/7.0.0
>>> /root/workspace/eos4/libraries/chain/include/eosio/chain/types.hpp:6:10:
>>> fatal error: 'eosio/chain/name.hpp' file not found
>>> #include <eosio/chain/name.hpp>
>>>          ^~~~~~~~~~~~~~~~~~~~~~
>>> 1 error generated.
>>>
>>> attach the error and compilation database
>>>
>>> Thanks.
>>>
>>> Brs
>>> Su Yu
>>>
>>> _______________________________________________
>>> cfe-dev mailing list
>>> cfe-dev at lists.llvm.org
>>> https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-dev
>>>
>>
>>
>> --
>> Regards,
>> Ilya Biryukov
>>
>
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