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Summary: InMemoryFileSystem::status behaves differently than RealFileSystem::status. The Name contained in the Status returned by RealFileSystem::status will be the path as requested by the caller, whereas InMemoryFileSystem::status returns the normalized path. For example, when requested the status for "../src/first.h", RealFileSystem returns a Status with "../src/first.h" as the Name. InMemoryFileSystem returns "/absolute/path/to/src/first.h". The reason for this change is that I want to make a unit test in the clangd testsuite (where we use an InMemoryFileSystem) to reproduce a bug I get with the clangd program (where a RealFileSystem is used). This difference in behavior "hides" the bug in the unit test version. An indirect impact of this change is that a -Wnonportable-include-path warning is now emitted in test PCH/case-insensitive-include.c. This is because the real path of the included file (with the wrong case) was not available previously, whereas it is now. Reviewers: malaperle, ilya-biryukov, bkramer Reviewed By: ilya-biryukov Subscribers: eric_niebler, malaperle, omtcyfz, hokein, bkramer, ilya-biryukov, ioeric, cfe-commits Differential Revision: https://reviews.llvm.org/D48903 llvm-svn: 339063
//===----------------------------------------------------------------------===// // C Language Family Front-end //===----------------------------------------------------------------------===// Welcome to Clang. This is a compiler front-end for the C family of languages (C, C++, Objective-C, and Objective-C++) which is built as part of the LLVM compiler infrastructure project. Unlike many other compiler frontends, Clang is useful for a number of things beyond just compiling code: we intend for Clang to be host to a number of different source-level tools. One example of this is the Clang Static Analyzer. If you're interested in more (including how to build Clang) it is best to read the relevant web sites. Here are some pointers: Information on Clang: http://clang.llvm.org/ Building and using Clang: http://clang.llvm.org/get_started.html Clang Static Analyzer: http://clang-analyzer.llvm.org/ Information on the LLVM project: http://llvm.org/ If you have questions or comments about Clang, a great place to discuss them is on the Clang development mailing list: http://lists.llvm.org/mailman/listinfo/cfe-dev If you find a bug in Clang, please file it in the LLVM bug tracker: http://llvm.org/bugs/