[modules] Frontend support for building a header module from a list of

headaer files.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@342304 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 7 insertions, 5 deletions

diff --git a/include/clang/Lex/ModuleMap.h b/include/clang/Lex/ModuleMap.h
index 4a3984e746..4daa1dd817 100644
--- a/include/clang/Lex/ModuleMap.h
+++ b/include/clang/Lex/ModuleMap.h
@@ -92,9 +92,9 @@ class ModuleMap {
   /// named LangOpts::CurrentModule, if we've loaded it).
   Module *SourceModule = nullptr;
 
-  /// The global module for the current TU, if we still own it. (Ownership is
-  /// transferred if/when we create an enclosing module.
-  std::unique_ptr<Module> PendingGlobalModule;
+  /// Submodules of the current module that have not yet been attached to it.
+  /// (Ownership is transferred if/when we create an enclosing module.)
+  llvm::SmallVector<std::unique_ptr<Module>, 8> PendingSubmodules;
 
   /// The top-level modules that are known.
   llvm::StringMap<Module *> Modules;
@@ -519,8 +519,7 @@ public:
                                                bool IsFramework,
                                                bool IsExplicit);
 
-  /// Create a 'global module' for a C++ Modules TS module interface
-  /// unit.
+  /// Create a 'global module' for a C++ Modules TS module interface unit.
   ///
   /// We model the global module as a submodule of the module interface unit.
   /// Unfortunately, we can't create the module interface unit's Module until
@@ -537,6 +536,9 @@ public:
   Module *createModuleForInterfaceUnit(SourceLocation Loc, StringRef Name,
                                        Module *GlobalModule);
 
+  /// Create a header module from the specified list of headers.
+  Module *createHeaderModule(StringRef Name, ArrayRef<Module::Header> Headers);
+
   /// Infer the contents of a framework module map from the given
   /// framework directory.
   Module *inferFrameworkModule(const DirectoryEntry *FrameworkDir,