当我们有SWIG TCL静态链接时，枚举不会传递给TCL [英] The enums does not get passed to TCL when we have SWIG TCL Static Linking

问题描述

继续提问

如何使用Swig将TCL脚本中的枚举值传递给C ++类

以下代码

1）文件：example.i

1) File : example.i

%module example
%{
      /* Put header files here or function declarations like below */
      #include "example.h"
%}

%include "example.h"

2文件example.h

2 File example.h

class myClass {
    public:
        enum Type {one,two};
         myClass() {}
        static bool printVal(int val);
        static bool printEnum(Type val);
};

3）文件example.cpp

3) File example.cpp

 #include  "example.h"
 #include <iostream>
 using namespace std;

 bool myClass::printVal(int val) {
    cout << " Int Val = " << val << endl;
    return 0;
 }

 bool myClass::printEnum(type val) {
    cout << " Enum Val = " << val << endl;
    return 0;
 }  

如果我以共享库的形式链接swig文件，则可以正常工作

If I link the swig files in the form of shared library it is working fine

swig -c++ -tcl example.i
g++ -c -fpic example_wrap.cxx example.cpp -I/usr/local/include
g++ -shared example.o example_wrap.o -o example.so
setenv LD_LIBRARY_PATH /pathtoexample.so:$LD_LIBRARY_PATH
tclsh
% load example.so
% myClass_printVal $myClass_one

但是如果Swig代码和example。*文件是静态链接的我遇到以下错误

But if the swig code and example.* files are linked statically I am getting following error

 % myClass_printVal $myClass_one
 can't read "myClass_one": no such variable

期待指导/帮助

推荐答案

首先，如果您使用共享库的更多路径，则无需更改 LD_LIBRARY_PATH 变量。如果它在当前目录中（方便测试），则可以执行以下操作：

Firstly, if you use more of the path to the shared library, you don't need to alter the LD_LIBRARY_PATH variable. In the case that it's in the current directory (convenient for testing) you can just do this:

load ./example.so

当它与当前脚本位于同一目录时，您可以使用更长的版本：

When it's in the same directory as the current script, you instead do this rather longer version:

load [file join [file dirname [info script]] example.so]
# This also probably works:
#load [file dirname [info script]]/example.so

，您应该检查示例实际创建的内容；它可能只是使用了与您期望的名称不同的名称。您可以使用 info命令， info vars 和命名空间子项找出答案；他们列出了当前可见的命令，变量和名称空间。

Secondly, you should check what the example has actually created; it might simply be using a different name to what you expect. You can use info commands, info vars and namespace children to find this out; they list the commands, variables and namespaces currently visible.

[通过注释编辑可见性]：变量位于 :: swig 命名空间。

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