[PATCH] D89508: SourceManager: getFileEntryRefForID => getNonBuiltinFilenameForID, NFC
Duncan P. N. Exon Smith via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Thu Oct 15 16:00:13 PDT 2020
dexonsmith created this revision.
dexonsmith added reviewers: arphaman, Bigcheese.
Herald added a subscriber: ributzka.
dexonsmith requested review of this revision.
`SourceManager::getFileEntryRefForID`'s remaining callers just want the
filename component, which is coming from the `FileInfo`. Replace the API
with `getNonBuiltinFilenameForID`, which also removes another use of
`FileEntryRef::FileEntryRef` outside of `FileManager`.
Both callers are collecting file dependencies, and one of them relied on
this API to filter out built-ins (as exposed by
clang/test/ClangScanDeps/modules-full.cpp). It seems nice to continue
providing that service.
https://reviews.llvm.org/D89508
Files:
clang/include/clang/Basic/SourceManager.h
clang/lib/Basic/SourceManager.cpp
clang/lib/Frontend/DependencyFile.cpp
clang/lib/Tooling/DependencyScanning/ModuleDepCollector.cpp
Index: clang/lib/Tooling/DependencyScanning/ModuleDepCollector.cpp
===================================================================
--- clang/lib/Tooling/DependencyScanning/ModuleDepCollector.cpp
+++ clang/lib/Tooling/DependencyScanning/ModuleDepCollector.cpp
@@ -77,15 +77,10 @@
// Dependency generation really does want to go all the way to the
// file entry for a source location to find out what is depended on.
// We do not want #line markers to affect dependency generation!
- Optional<FileEntryRef> File =
- SM.getFileEntryRefForID(SM.getFileID(SM.getExpansionLoc(Loc)));
- if (!File)
- return;
-
- StringRef FileName =
- llvm::sys::path::remove_leading_dotslash(File->getName());
-
- MDC.MainDeps.push_back(std::string(FileName));
+ if (Optional<StringRef> Filename =
+ SM.getNonBuiltinFilenameForID(SM.getFileID(SM.getExpansionLoc(Loc))))
+ MDC.MainDeps.push_back(
+ std::string(llvm::sys::path::remove_leading_dotslash(*Filename)));
}
void ModuleDepCollectorPP::InclusionDirective(
Index: clang/lib/Frontend/DependencyFile.cpp
===================================================================
--- clang/lib/Frontend/DependencyFile.cpp
+++ clang/lib/Frontend/DependencyFile.cpp
@@ -46,17 +46,12 @@
// Dependency generation really does want to go all the way to the
// file entry for a source location to find out what is depended on.
// We do not want #line markers to affect dependency generation!
- Optional<FileEntryRef> File =
- SM.getFileEntryRefForID(SM.getFileID(SM.getExpansionLoc(Loc)));
- if (!File)
- return;
-
- StringRef Filename =
- llvm::sys::path::remove_leading_dotslash(File->getName());
-
- DepCollector.maybeAddDependency(Filename, /*FromModule*/false,
- isSystem(FileType),
- /*IsModuleFile*/false, /*IsMissing*/false);
+ if (Optional<StringRef> Filename = SM.getNonBuiltinFilenameForID(
+ SM.getFileID(SM.getExpansionLoc(Loc))))
+ DepCollector.maybeAddDependency(
+ llvm::sys::path::remove_leading_dotslash(*Filename),
+ /*FromModule*/ false, isSystem(FileType), /*IsModuleFile*/ false,
+ /*IsMissing*/ false);
}
void FileSkipped(const FileEntryRef &SkippedFile, const Token &FilenameTok,
Index: clang/lib/Basic/SourceManager.cpp
===================================================================
--- clang/lib/Basic/SourceManager.cpp
+++ clang/lib/Basic/SourceManager.cpp
@@ -723,11 +723,12 @@
const_cast<SrcMgr::ContentCache *>(CC)->IsTransient = true;
}
-Optional<FileEntryRef> SourceManager::getFileEntryRefForID(FileID FID) const {
+Optional<StringRef>
+SourceManager::getNonBuiltinFilenameForID(FileID FID) const {
if (const SrcMgr::SLocEntry *Entry = getSLocEntryForFile(FID))
if (auto *Content = Entry->getFile().getContentCache())
if (Content && Content->OrigEntry)
- return FileEntryRef(Entry->getFile().getName(), *Content->OrigEntry);
+ return Entry->getFile().getName();
return None;
}
Index: clang/include/clang/Basic/SourceManager.h
===================================================================
--- clang/include/clang/Basic/SourceManager.h
+++ clang/include/clang/Basic/SourceManager.h
@@ -997,8 +997,11 @@
return nullptr;
}
- /// Returns the FileEntryRef for the provided FileID.
- Optional<FileEntryRef> getFileEntryRefForID(FileID FID) const;
+ /// Returns the filename for the provided FileID, unless it's a built-in
+ /// buffer that's not represented by a filename.
+ ///
+ /// Returns None for non-files and built-in files.
+ Optional<StringRef> getNonBuiltinFilenameForID(FileID FID) const;
/// Returns the FileEntry record for the provided SLocEntry.
const FileEntry *getFileEntryForSLocEntry(const SrcMgr::SLocEntry &sloc) const
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