Re: Iterative visiting of all source files

On 02/11/2015 06:36 AM, RJD wrote:
> Eric Ludlam <eric <at> siege-engine.com> writes:
>
>
> I run:
>> M-x semantic-symref RET
> in some function (let's call it someFunction, and I get the buffer:
>> *Symref someFunction
>
> in this buffer I can see:
>
>> d:/a/b/c/header1.h
>>   [+] class SomeClass {}
>> d:a/b/c/header2.h
>>   [+] class SomeOtherClass {}
>> d:a/b/c/header3.h
>>   [+] class SomeOtherOtherClass {}
>> d:a/b/c/source1.cpp
>>   [+] void aTotallyDifferentFunction( int a, int b)
>
> Where source1.cpp contains aTotallyDifferentFunction() which actually calls
> someFunction. So, this all seems fine so far.
>
> Then, in that *Symref buffer I run:
>> M-x semantic-symref-data-debug-last-result RET
>
> I get something like this in a new buffer (*Symbol Reference ADEBUG*):
>
>> ] Name: "someFunction"
>> ] Class: #'semantic-symref-result
>> ] :created-by #<semantic-symref-tool-global semantic-symref-tool-global>
>> ] :hit-files #unbound
>> ] :hit-text #unbound
>> ] :hit-lines #<list o' stuff: 4 entries>
>> ] :hit-tags #<TAG LIST: 4 entries>
>
> Is this using GTAGS?

Yes, it is using GTAGS.  You can tell because the :created-by is 
semantic-symref-tool-global, which calls the "global" command to query 
GTAGS.

> *** PS: Notice that I have not manually instantiated a gtags object. I did
> not use:
>> M-: (semantic-symref-instantiate) RET
>
> ^^^^^ Does this matter? If it does, should I put it in my .emacs file.

The instantiation is handled internally as needed.  You only need to 
call toplevel symref commands.   Also, all this function does is find 
the right Emacs Lisp object for performing the search.

The way to make the GTAGS file is either by hand outside of emacs, or

M-x cedet-gnu-global-create/update-database

which is probably only used from some of my test suites.

Eric

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