diff options
Diffstat (limited to 'clang/lib/Frontend/FrontendAction.cpp')
| -rw-r--r-- | clang/lib/Frontend/FrontendAction.cpp | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/clang/lib/Frontend/FrontendAction.cpp b/clang/lib/Frontend/FrontendAction.cpp index 68b8232..45245f3 100644 --- a/clang/lib/Frontend/FrontendAction.cpp +++ b/clang/lib/Frontend/FrontendAction.cpp @@ -843,6 +843,21 @@ bool FrontendAction::BeginSourceFile(CompilerInstance &CI, if (!CI.InitializeSourceManager(Input)) return false; + if (CI.getLangOpts().CPlusPlusModules && Input.getKind().isHeaderUnit() && + Input.getKind().isPreprocessed() && !usesPreprocessorOnly()) { + // We have an input filename like foo.iih, but we want to find the right + // module name (and original file, to build the map entry). + // Check if the first line specifies the original source file name with a + // linemarker. + std::string PresumedInputFile = std::string(getCurrentFileOrBufferName()); + ReadOriginalFileName(CI, PresumedInputFile); + // Unless the user overrides this, the module name is the name by which the + // original file was known. + if (CI.getLangOpts().ModuleName.empty()) + CI.getLangOpts().ModuleName = std::string(PresumedInputFile); + CI.getLangOpts().CurrentModule = CI.getLangOpts().ModuleName; + } + // For module map files, we first parse the module map and synthesize a // "<module-includes>" buffer before more conventional processing. if (Input.getKind().getFormat() == InputKind::ModuleMap) { |