从Swift访问extern const struct [英] Access to extern const struct from Swift

问题描述

我无法从Mogenerator生成的Swift中访问c结构.

I can't access a c-struct from Swift, which was generated with Mogenerator.

该结构体在实现中:

const struct MyAttributes MyAttributes = {
    .foo = @"foo",
};

然后在标题中:

extern const struct MyAttributes {
    __unsafe_unretained NSString *foo;
} MyAttributes;

我将头文件导入添加到了桥接头文件中.但是我无法从Swift访问结构.使用目标C，我可以.我以为Swift可能需要struct声明，就像它在实现文件中一样，所以我尝试将.m文件添加到桥接头中，但这不起作用.我认为我无法更改这些文件的结构，因为它们是由Mogenerator生成的.

I added the header import to the bridging header. But I can't access the struct from Swift. With Objective C I can. I thought maybe Swift needs the struct declaration as it is in the implementation file, so I tried adding the .m file to the bridging header but this doesn't work. I think I can't change the structure of these files because they are generated by Mogenerator.

我该如何解决?

谢谢.

推荐答案

使用

#import "YourClass.h"

在桥接头文件中，您可以使用以下方式从Swift访问结构:

in the bridging header file you can access the struct from Swift as

let fooAttr = MyAttributes.foo
println(fooAttr) // Output: "foo"

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