Re: [PATCH, RFC] etags/ctags v22.0.92 break Linux kernel `make TAGS/tags`

[Frank Schmitt <ich@frank-schmitt.net>]

Frank Schmitt <ich@frank-schmitt.net> writes:

> Sorry, I don't have an example at hand, because my switch was somewhere
> in summer. But I used emacs CVS head etags till then and had problems,
> that a special case of templated functions in C++ were not listed in
> TAGS. I'll switch back to Emacs etags and report when I find something
> which Emacs etags doesn't tag.

I did some testing and found out that I just didn't RTFM. Emacs etags
defaults to not TAG member variables of C++ classes (which doesn't make
much sense in my eyes) while exuberant ctags does tag those. However
after aliasing etags to etags --members it works just as well for me as
exuberant ctags does.

One question though: Say I have a class like this:

template <typename ipc3dIslandHierarchy, typename ipc3dChannelType, unsigned numOfChannels, typename ipc3dLinkControl, typename ipc3dLinkControlSetup>
class CMultiChannelCSC19_3D
{
public:
	ipc3dLinkControlSetup setup;
	ipc3dCSC19<ipc3dIslandHierarchy,ipcMultiChannel<ipc3dChannelType,numOfChannels>,ipcMultiChannel<ipc3dChannelType,numOfChannels>,ipc3dLinkControl> mcCSC; 
	advTimer cscInitTime;
	advTimer cscSegmentationTime;
	advTimer outputTime;
	void execute(CPluginCSCState& p, int w, int h, int d, const ipcMultiChannel<ipc3dChannelType,numOfChannels>* orgImage, ipcMultiChannel<ipc3dChannelType,numOfChannels>* regionImage, unsigned int* mapImage, ipc3dBlockCompressedLabelImage* compressedMapImage=NULL)
	{
		if (orgImage!=NULL)
		{
				  //do something
		}
	}
};

what Emacs etags generates is

foo.h,936
template <typename ipc3dIslandHierarchy,1,0
template <typename ipc3dIslandHierarchy, typename ipc3dChannelType,1,0
template <typename ipc3dIslandHierarchy, typename ipc3dChannelType, unsigned numOfChannels,1,0
template <typename ipc3dIslandHierarchy, typename ipc3dChannelType, unsigned numOfChannels, typename ipc3dLinkControl,1,0
class CMultiChannelCSC19_3D2,151
	ipc3dLinkControlSetup setup;CMultiChannelCSC19_3D::setup5,189
	ipc3dCSC19<CMultiChannelCSC19_3D::ipc3dCSC196,219
	ipc3dCSC19<ipc3dIslandHierarchy,ipcMultiChannel<ipc3dChannelType,numOfChannels>,ipcMultiChannel<ipc3dChannelType,numOfChannels>,ipc3dLinkControl> mcCSC;CMultiChannelCSC19_3D::mcCSC6,219
	advTimer cscInitTime;CMultiChannelCSC19_3D::cscInitTime7,374
	advTimer cscSegmentationTime;CMultiChannelCSC19_3D::cscSegmentationTime8,397
	advTimer outputTime;CMultiChannelCSC19_3D::outputTime9,428
	void execute(CMultiChannelCSC19_3D::execute10,450

while exuberant ctags skips those first four lines:

foo.h,680
class CMultiChannelCSC19_3DCMultiChannelCSC19_3D2,151
	ipc3dLinkControlSetup setup;setup5,189
	ipc3dCSC19<ipc3dIslandHierarchy,ipcMultiChannel<ipc3dChannelType,numOfChannels>,ipcMultiChannel<ipc3dChannelType,numOfChannels>,ipc3dLinkControl> mcCSC; mcCSC6,219
	advTimer cscInitTime;cscInitTime7,374
	advTimer cscSegmentationTime;cscSegmentationTime8,397
	advTimer outputTime;outputTime9,428
	void execute(CPluginCSCState& p, int w, int h, int d, const ipcMultiChannel<ipc3dChannelType,numOfChannels>* orgImage, ipcMultiChannel<ipc3dChannelType,numOfChannels>* regionImage, unsigned int* mapImage, ipc3dBlockCompressedLabelImage* compressedMapImage=NULL)execute10,450

what do they mean?

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