如何将我的整个 C++ 代码库 SWIG 到 Java [英] How to SWIG my entire c++ code base to Java

问题描述

我使用 swig 为独立类生成 java 绑定.但是，当我尝试为我现有的非常复杂的代码库执行此操作时，需要调用 STL、OSG 和 OpenGL.当我尝试大口喝水时，它出现了问题.这是我的 .i 文件

I have used swig to do generate java bindings for independent classes. However when I tried to do it for my existing codebase which is quite complex, having calls for STL , OSG and OpenGL. When I am trying to swig it am getting issues. Here is my .i file

/* File : Line.i */
%module Line

%{
#include "Elements/LineFeatureObject.h"
%}

/* Let's just grab the original header file here */
%include "Elements/LineFeatureObject.h

这个头文件包括其他几个头文件.其中一些是由代码读取的，而对于一些则给出以下警告.警告 401:对基类 'ELEMENTS::ILineAlgebra' 一无所知.忽略.这些类与其余类列在同一位置.所以我不确定这几个类出了什么问题.

This headers includes several other headers files. Some of them are read by the code while for some it gives the following warnings. Warning 401: Nothing known about base class 'ELEMENTS::ILineAlgebra'. Ignored. These classes are listed in the same location with rest of the classes. So am not sure what is going wrong with just couple of these classes.

继续前进，我能够获得 _wrap.cxx，但是在编译它时出现以下错误.错误 C4430:缺少类型说明符 - 假定为 int.注意:C++ 不支持 default-int错误 C2144:语法错误:void"应以;"开头错误 C2086:int WINGDIAPI":重新定义C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\include\GL/gl.h(1152) :参见WINGDIAPI"的声明...

Moving on I am able to get _wrap.cxx but when am compiling it am getting the following errors. error C4430: missing type specifier - int assumed. Note: C++ does not support default-int error C2144: syntax error : 'void' should be preceded by ';' error C2086: 'int WINGDIAPI' : redefinition C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\include\GL/gl.h(1152) : see declaration of 'WINGDIAPI' . . .

这里没有列出所有这些.你能帮我解决这些错误吗.

Have not listed all of them here. Can you help me find way around these errors.

推荐答案

SWIG 默认只处理由 %include 命名的顶级文件.它不会递归到额外的 #include 文件中.您必须明确%include您希望 SWIG 处理的头文件.

SWIG by default only processes the top-level file named by %include. It does not recurse into additional #include files. You must explicitly %include the headers files you wish SWIG to process.

SWIG 也对 STL 一无所知，但有一些 SWIG 标头可以添加对 STL 类型的支持，例如 std::string 和 std::vector.STL 模板必须显式实例化并给出目标语言名称:示例:

SWIG also does not know anything about STL, but there are some SWIG headers that can add support for STL types like std::string and std::vector. STL templates must be explicitly instantiated and given a target language name: Example:

%include <std_string.i>
%include <std_vector.i>
%template(IntVector) std::vector<int>;

SWIG 也不知道 Windows 类型和编译器扩展，可能会被 __stdcall、__cdecl、__declspec(dllexport)、DWORD、UINT 等，但这包括帮助:

SWIG also does not know about Windows types and compiler extensions and can be confused by __stdcall, __cdecl, __declspec(dllexport), DWORD, UINT, etc., but this include helps:

%include <windows.i>

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