From 3c5305c15ed6dd0413a83675d482263e125f18ac Mon Sep 17 00:00:00 2001 From: Argyrios Kyrtzidis Date: Wed, 13 Mar 2013 21:13:43 +0000 Subject: [Modules] Resolve top-headers of modules lazily. This allows resolving top-header filenames of modules to FileEntries when we need them, not eagerly. Note that that this breaks ABI for libclang functions clang_Module_getTopLevelHeader / clang_Module_getNumTopLevelHeaders but this is fine because they are experimental and not widely used yet. llvm-svn: 176975 --- clang/lib/Basic/Module.cpp | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'clang/lib/Basic/Module.cpp') diff --git a/clang/lib/Basic/Module.cpp b/clang/lib/Basic/Module.cpp index 65deac1b4af..f074391098b 100644 --- a/clang/lib/Basic/Module.cpp +++ b/clang/lib/Basic/Module.cpp @@ -15,6 +15,7 @@ #include "clang/Basic/FileManager.h" #include "clang/Basic/LangOptions.h" #include "clang/Basic/TargetInfo.h" +#include "llvm/ADT/ArrayRef.h" #include "llvm/ADT/SmallVector.h" #include "llvm/ADT/StringSwitch.h" #include "llvm/Support/ErrorHandling.h" @@ -129,6 +130,19 @@ const DirectoryEntry *Module::getUmbrellaDir() const { return Umbrella.dyn_cast(); } +ArrayRef Module::getTopHeaders(FileManager &FileMgr) { + if (!TopHeaderNames.empty()) { + for (std::vector::iterator + I = TopHeaderNames.begin(), E = TopHeaderNames.end(); I != E; ++I) { + if (const FileEntry *FE = FileMgr.getFile(*I)) + TopHeaders.insert(FE); + } + TopHeaderNames.clear(); + } + + return llvm::makeArrayRef(TopHeaders.begin(), TopHeaders.end()); +} + void Module::addRequirement(StringRef Feature, const LangOptions &LangOpts, const TargetInfo &Target) { Requires.push_back(Feature); -- cgit v1.2.3