Clangd жалуется на ODR при использовании модулей C ++-20 ⇐ C++

[Anonymous]

Clangd, по -видимому, не может должным образом десериализировать исходный файл, который включает в себя и импорт объявления, поэтому он предполагает, что в моем кодексе есть нарушения ODR. Тем не менее, код компилирует и работает должным образом без каких-либо предупреждений, как мне исправить комментарии Clangd?// some_module.cpp
module;

#include

export module SomeModule;

export std::string HelloWorld() {
return "Hello, World!";
}
< /code>
Теперь я хочу его использовать, но Clangd продолжает жаловаться на то, что я сломал ODR: < /p>
// main.cpp
#include

import SomeModule; // clangd complaint:
// in included file: 'std::basic_string' has different definitions
// in different modules; first difference is definition in
// module 'SomeModule.' found template parameter
// with no default argument (module_odr_violation_template_parameter)

int main() {
std::cout https://clang.llvm.org/docs/standardcpl ... ematicship Прекратите излучать ошибки ODR < /p>
p.s.
Вот мой cmakelists.txt (весь код доступен на github) < /p>
# CMakeLists.txt
cmake_minimum_required(VERSION 3.28)

set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

project(example CXX)

add_executable(main
main.cpp
)

target_sources(main
PUBLIC FILE_SET modules TYPE CXX_MODULES FILES
some_module.cpp
)
< /code>
Вот ответ автономной диагностики Clangd: < /p>
~: clangd --compile-commands-dir=build --check=main.cpp I[13:41:01.950] clangd version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
I[13:41:01.950] Features: linux
I[13:41:01.950] PID: 14364
I[13:41:01.950] Working directory: /home/zhantaram/Prog/example
I[13:41:01.950] argv[0]: clangd
I[13:41:01.950] argv[1]: --compile-commands-dir=build
I[13:41:01.950] argv[2]: --check=main.cpp
I[13:41:01.950] Entering check mode (no LSP server)
I[13:41:01.950] Testing on source file /home/zhantaram/Prog/example/main.cpp
I[13:41:01.951] Loading compilation database...
I[13:41:01.951] Loaded compilation database from /home/zhantaram/Prog/example/build/compile_commands.json
I[13:41:01.952] Compile command from CDB is: [/home/zhantaram/Prog/example/build] /home/zhantaram/.installer/clang/clang+llvm-17.0.6-x86_64-linux-gnu-ubuntu-22.04/bin/clang++ --driver-mode=g++ -std=gnu++20 -fmodule-file=SomeModule=CMakeFiles/main.dir/SomeModule.pcm -o CMakeFiles/main.dir/main.cpp.o -c -std=c++20 -resource-dir=/home/zhantaram/.installer/clang/clang+llvm-17.0.6-x86_64-linux-gnu-ubuntu-22.04/lib/clang/17 -- /home/zhantaram/Prog/example/main.cpp
I[13:41:01.952] Parsing command...
I[13:41:01.955] internal (cc1) args are: -cc1 -triple x86_64-unknown-linux-gnu -fsyntax-only -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name main.cpp -mrelocation-model pic -pic-level 2 -pic-is-pie -mframe-pointer=all -fmath-errno -ffp-contract=on -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/home/zhantaram/Prog/example/build -resource-dir /home/zhantaram/.installer/clang/clang+llvm-17.0.6-x86_64-linux-gnu-ubuntu-22.04/lib/clang/17 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/12/../../../../include/c++/12 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/12/../../../../include/x86_64-linux-gnu/c++/12 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/12/../../../../include/c++/12/backward -internal-isystem /home/zhantaram/.installer/clang/clang+llvm-17.0.6-x86_64-linux-gnu-ubuntu-22.04/lib/clang/17/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/12/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -std=c++20 -fdeprecated-macro -fdebug-compilation-dir=/home/zhantaram/Prog/example/build -ferror-limit 19 -fgnuc-version=4.2.1 -fno-implicit-modules -fmodule-file=SomeModule=CMakeFiles/main.dir/SomeModule.pcm -fcxx-exceptions -fexceptions -no-round-trip-args -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -x c++ /home/zhantaram/Prog/example/main.cpp
I[13:41:01.956] Building preamble...
I[13:41:02.356] Built preamble of size 5050620 for file /home/zhantaram/Prog/example/main.cpp version null in 0.40 seconds
I[13:41:02.356] Indexing headers...
I[13:41:02.424] Building AST...
E[13:41:02.445] [module_odr_violation_template_parameter] Line 3: in included file: 'std::basic_string' has different definitions in different modules; first difference is definition in module 'SomeModule.' found template parameter with no default argument
I[13:41:02.445] Indexing AST...
I[13:41:02.445] Building inlay hints
I[13:41:02.445] Building semantic highlighting
I[13:41:02.445] Testing features at each token (may be slow in large files)
I[13:41:02.451] All checks completed, 1 errors
< /code>
Здесь есть база данных компиляции, сброшенная Cmake: < /p>
# compile_commands.json
[
{
"directory": "/home/zhantaram/Prog/example/build",
"command": "/home/zhantaram/.installer/clang/clang+llvm-17.0.6-x86_64-linux-gnu-ubuntu-22.04/bin/clang++ -std=gnu++20 @CMakeFiles/main.dir/main.cpp.o.modmap -o CMakeFiles/main.dir/main.cpp.o -c /home/zhantaram/Prog/example/main.cpp",
"file": "/home/zhantaram/Prog/example/main.cpp",
"output": "CMakeFiles/main.dir/main.cpp.o"
},
{
"directory": "/home/zhantaram/Prog/example/build",
"command": "/home/zhantaram/.installer/clang/clang+llvm-17.0.6-x86_64-linux-gnu-ubuntu-22.04/bin/clang++ -std=gnu++20 @CMakeFiles/main.dir/some_module.cpp.o.modmap -o CMakeFiles/main.dir/some_module.cpp.o -c /home/zhantaram/Prog/example/some_module.cpp",
"file": "/home/zhantaram/Prog/example/some_module.cpp",
"output": "CMakeFiles/main.dir/some_module.cpp.o"
}
]


Подробнее здесь: https://stackoverflow.com/questions/777 ... 20-modules