如何在STL中使用libclang? [英] How to use libclang with STL?

问题描述

我正在尝试使用libclang解析库，但我遇到了一个非常简单的问题:如何使用STL对其进行配置? 目前，它无法解析翻译单元，因为找不到<string>.

I'm trying to parse a library using libclang, and I'm stuck with what could be a very simple issue: how to configure it with STL? At the moment, it fails to parse a translation unit because it can't find <string>.

这就是我尝试过的:

char *args[] = {"-x", "c++", "-Ic:/my/library/includes", "-IG:/Prog/libcxx-3.4/include"};
clang_parseTranslationUnit(index, "c:/my/library/test.cpp", args, 4, 0, 0, 0);

我在Windows上，从llvm.org下载了预编译的clang二进制文件，并且尝试了各种STL实现:

I'm on windows, with the precompiled clang binaries downloaded from llvm.org, and I tried with various STL implementations :

• Visual Studio
• MingW
• libCXX

在每种情况下，我最终都有未知的类型.

In each case, I ended up with unknown types.

例如，对于mingw，我收到以下错误消息:

For example, with mingw, I've got the following error messages :

/mingw/include\wchar.h:221:71: error: unknown type name '_locale_t'
/mingw/include\wchar.h:223:81: error: unknown type name '_locale_t'
/mingw/include\stdlib.h:173:65: error: unknown type name '_locale_t'
/mingw/include\stdlib.h:175:75: error: unknown type name '_locale_t'
/mingw/include\io.h:301:14: error: unknown type name 'off64_t'
/mingw/include\io.h:301:36: error: C++ requires a type specifier for all declarations
/mingw/include\io.h:302:14: error: unknown type name 'off64_t'
/mingw/include\io.h:302:39: error: unknown type name 'off64_t'
/mingw/include\unistd.h:65:20: error: unknown type name 'off_t'

我发现的有关该主题的罕见教程都没有谈论这个主题...

The rare tutorials I've found about this subject don't talk about this subject...

推荐答案

由于libclang已预编译，因此它不知道编译器使用的标准库的确切路径.调用clang_parseTranslationUnit时，必须使用参数列表中的-I开关告诉它标准的包含路径.

Since libclang was precompiled, it doesn't know about the exact paths of the standard libraries used by your compilers. You'll have to tell it about the standard include path using -I switches in your arguments list, when calling clang_parseTranslationUnit.

这是我用来查找Linux上gcc包含路径的命令.您应该能够在Windows环境中使其适应MinGW:

Here is the command I use to find about the inclusion paths for gcc on Linux. You should be able to adapt it to MinGW in your windows environment:

$ echo "" | g++ -v -x c++ -E -

...
#include "..." search starts here:
#include <...> search starts here:
 /usr/include/c++/4.8
 /usr/include/x86_64-linux-gnu/c++/4.8
 /usr/include/c++/4.8/backward
 /usr/lib/gcc/x86_64-linux-gnu/4.8/include
 /usr/local/include
 /usr/lib/gcc/x86_64-linux-gnu/4.8/include-fixed
 /usr/include/x86_64-linux-gnu
 /usr/include
End of search list.
...

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