在autoexp.dat内创建一个简单的VS2008可视化工具(铸造问题) [英] Creating a simple VS2008 visualizer inside autoexp.dat (problem with casting)
问题描述
我有一个混合C / C ++的大项目。我为ICU UnicodeString类创建了一个简单的可视化工具,如下:
[inside autoexp.dat]
icu_4_2 :: UnicodeString {
preview([$ c.fUnion.fFields.fArray,su])
}
...并且工作正常。在调试器中,无论我在哪里看到对象,我现在看到预览行中的文本。
然后我创建了一个包含这些对象的包装类如下:
class StringHandleData
{
public:
icu_4_2 :: UnicodeString str;
};
...然后为此创建另一个可视化工具...
[inside autoexp.dat]
StringHandleData {
preview([$ c.str.fUnion.fFields.fArray,su])
}
...再次,工作正常。每当我在调试器中看到一个StringHandleData对象,我看到的字符串里面的文本。
但是,我的问题出现时,我定义一个typedef我可以使用C代码this ...
typedef void * StringHandle;
...它实际上只是一个ptr到StringHandleData对象。所以当我尝试创建一个可视化的StringHandle类型像这样...
[inside autoexp.dat]
StringHandle {
preview([((StringHandleData)$ c).str.fUnion.fFields.fArray,su])
}
...它不工作。我试过很多其他的方式来铸造对象,但没有运气到目前为止。如果我去我的观察窗口,并施放一个StringHandle像这样... (StringHandleData *)stringHandle 然后调试器使正确的转换和预览 - 但我只是似乎无法得到它
感谢您的帮助。 p> Visual studio的visualizer对于typedef是盲目的,会认为
StringHandle
是一个 void *
。 I have a large project of mixed C/C++. I've created a simple visualizer for the ICU UnicodeString class as follows...
[inside autoexp.dat]
icu_4_2::UnicodeString {
preview ([$c.fUnion.fFields.fArray,su])
}
...and that works fine. Inside the debugger wherever I see the object I now see the text inside in the preview line.
I then created a wrapper class containing one of these objects as follows...
class StringHandleData
{
public:
icu_4_2::UnicodeString str;
};
...and then created another visualizer for this...
[inside autoexp.dat]
StringHandleData {
preview ([$c.str.fUnion.fFields.fArray,su])
}
...which again, works fine. Whenever I see a StringHandleData object in the debugger I see the text inside in the string.
However, my problem comes when I define a typedef I can use inside C code like this...
typedef void* StringHandle;
...which under the hood is actually just a ptr to a StringHandleData object. So when I try and create a visualizer for the StringHandle type like this...
[inside autoexp.dat]
StringHandle {
preview ([((StringHandleData)$c).str.fUnion.fFields.fArray,su])
}
...it doesn't work. I've tried lots of other ways of casting the object too but with no luck so far. If I go to my watch window and cast a StringHandle like this... (StringHandleData*)stringHandle then the debugger makes the cast and previews correctly - but I just can't seem to get it to do it automatically from inside autoexp.dat
Thanks for any help.
Visual studio's visualiser is blind to typedefs and will think StringHandle
is a void *
.
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