teak-llvm/with-header-guard.h at b4dd6d24d7567869e66e901b02d886095b87525d - teak-llvm - Git Backup

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Volodymyr Sapsai 210f0e880b Track skipped files in dependency scanning.

It's possible for a header to be a symlink to another header. In this
case both will be represented by clang::FileEntry with the same UID and
they'll use the same clang::HeaderFileInfo.

If you include both headers and use some single-inclusion mechanism
like a header guard or #import, one header will get a FileChanged
callback, and another FileSkipped.

So that we get an accurate dependency file, we therefore need to also
implement the FileSkipped callback in dependency scanning.

Patch by Pete Cooper.

Reviewers: bruno, pete

Reviewed By: bruno

Subscribers: cfe-commits, jkorous, vsapsai

Differential Revision: https://reviews.llvm.org/D30881

llvm-svn: 331319

2018-05-01 23:59:33 +00:00

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	`#ifndef HEADER_GUARD`
	`#define HEADER_GUARD`
	`#endif`