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Differential D46652 Diff 154264 cfe/trunk/lib/Frontend/CompilerInstance.cpp

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cfe/trunk/lib/Frontend/CompilerInstance.cpp

Show First 20 Lines • Show All 847 Lines • ▼ Show 20 Lines assert(SourceMgr.getMainFileID().isValid() &&
"Couldn't establish MainFileID!"); "Couldn't establish MainFileID!");
return true; return true;
} }
StringRef InputFile = Input.getFile(); StringRef InputFile = Input.getFile();
// Figure out where to get and map in the main file. // Figure out where to get and map in the main file.
if (InputFile != "-") { if (InputFile != "-") {
const FileEntry *File; const FileEntry *File = FileMgr.getFile(InputFile, /*OpenFile=*/true);
if (Opts.FindPchSource.empty()) {
File = FileMgr.getFile(InputFile, /*OpenFile=*/true);
} else {
// When building a pch file in clang-cl mode, the .h file is built as if
// it was included by a cc file. Since the driver doesn't know about
// all include search directories, the frontend must search the input
// file through HeaderSearch here, as if it had been included by the
// cc file at Opts.FindPchSource.
const FileEntry *FindFile = FileMgr.getFile(Opts.FindPchSource);
if (!FindFile) {
Diags.Report(diag::err_fe_error_reading) << Opts.FindPchSource;
return false;
}
const DirectoryLookup *UnusedCurDir;
SmallVector<std::pair<const FileEntry *, const DirectoryEntry *>, 16>
Includers;
Includers.push_back(std::make_pair(FindFile, FindFile->getDir()));
File = HS->LookupFile(InputFile, SourceLocation(), /*isAngled=*/false,
/*FromDir=*/nullptr,
/*CurDir=*/UnusedCurDir, Includers,
/*SearchPath=*/nullptr,
/*RelativePath=*/nullptr,
/*RequestingModule=*/nullptr,
/*SuggestedModule=*/nullptr, /*IsMapped=*/nullptr,
/*SkipCache=*/true);
// Also add the header to /showIncludes output.
if (File)
DepOpts.ShowIncludesPretendHeader = File->getName();
}
if (!File) { if (!File) {
Diags.Report(diag::err_fe_error_reading) << InputFile; Diags.Report(diag::err_fe_error_reading) << InputFile;
return false; return false;
} }
// The natural SourceManager infrastructure can't currently handle named // The natural SourceManager infrastructure can't currently handle named
// pipes, but we would at least like to accept them for the main // pipes, but we would at least like to accept them for the main
// file. Detect them here, read them with the volatile flag so FileMgr will // file. Detect them here, read them with the volatile flag so FileMgr will
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