[cfe-commits] [patch] Expose HeaderSearch::SearchDirs to tools

Douglas Gregor dgregor at apple.com
Sun Mar 6 09:37:52 PST 2011

On Feb 25, 2011, at 5:14 AM, Paul Holden wrote:

> Hello,
> Apologies for pinging this. I was hoping for some feedback on the attached patch, which exposes HeaderSearch::SearchDirs for use by analysis tools (such as include-what-you-use - more details below).
> It does break the encapsulation of SearchDirs, and I'm happy to consider an alternative approach. However it is fairly trivial and mirrors the behaviour header_file_begin/end/size().

Sorry for the delay. Committed as r127122, thanks!

	- Doug

>> -----Original Message-----
>> From: cfe-commits-bounces at cs.uiuc.edu [mailto:cfe-commits-
>> bounces at cs.uiuc.edu] On Behalf Of Paul Holden
>> Sent: 18 February 2011 14:46
>> To: cfe-commits at cs.uiuc.edu
>> Subject: [cfe-commits] [patch] Expose HeaderSearch::SearchDirs to tools
>> Hello,
>> I was hoping to get some feedback on the attached patch.
>> I've been working on fixing a couple of bugs in the recently-released
>> 'include-what-you-use' tool (http://code.google.com/p/include-what-you-
>> use/).
>> One thing we need to be able to do is enumerate the search paths which
>> the preprocessor was initialised with. My current solution relies on
>> enumerating the paths stored in HeaderSearch::SearchDirs.
>> Unfortunately this doesn't appear to be exposed in any way, and that's
>> that the attached patch does.
>> I suppose it's a little contentious as it breaks the encapsulation that
>> HeaderSearch achieves. An alternative approach would be to add
>> functionality to HeaderSearch which takes an absolute path, and returns
>> a matching DirectoryLookup. If that sounds like a better plan then I'll
>> try it out and submit another patch for review.
>> Regards,
>> Paul
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