Review Request 120176: Suggest file buddies based on DUChain

[Max Schwarz]

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https://git.reviewboard.kde.org/r/120176/
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(Updated Sept. 16, 2014, 10:27 nachm.)


Review request for KDevelop.


Changes
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Rebased on master, fixed style issues and s/KUrl/QUrl/.

I don't have a KF5 workspace (yet), so I couldn't check if it still compiles and works :-(


Repository: kdev-clang


Description
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Many projects have source trees with split include / source folders.
In that situation the path-based buddy finder does not work. So
examine DUChain declarations/definitions and rank possible buddy files
to find the most probable one. If we found such a buddy file, add it
to the suggestions.

Of course, this improvement does not depend on kdev-clang. If you point
me towards a suitable place in kdevplatform, I can also add it there.


Diffs (updated)
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  documentfinderhelpers.cpp e100be2 
  tests/test_buddies.h 0e83d9f 
  tests/test_buddies.cpp a252b8e 

Diff: https://git.reviewboard.kde.org/r/120176/diff/


Testing
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Tested on a medium codebase (>100 source files) with the SwitchToBuddy shortcut (Ctrl+Alt+c). Works fine with no visible performance drop.
Tests added in the TestBuddies unit test.


Thanks,

Max Schwarz

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