[clangd] Recognize "don't include me directly" pattern, and suppress include insertion.
Summary:
Typically used with umbrella headers, e.g. GTK:
#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
#error "Only <gtk/gtk.h> can be included directly."
#endif
Heuristic is fairly conservative, a quick code search over github showed
a fair number of hits and few/no false positives. (Not all were umbrella
headers, but I'd be happy avoiding include insertion for all of them).
We may want to relax the heuristic later to catch more cases.
Reviewers: ioeric
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D60815
git-svn-id: https://llvm.org/svn/llvm-project/clang-tools-extra/trunk@358605 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed
