Inferred framework modules automatically export anything they import

(i.e., 'export *'), to better match the semantics of headers.

llvm-svn: 145813

clang/lib/Lex/ModuleMap.cpp

@@ -197,9 +197,14 @@ ModuleMap::inferFrameworkModule(StringRef ModuleName,
   
   Module *Result = new Module(ModuleName, SourceLocation(), 
                               /*IsFramework=*/true);
+  // umbrella "umbrella-header-name"
   Result->UmbrellaHeader = UmbrellaHeader;
   Headers[UmbrellaHeader] = Result;
   UmbrellaDirs[FrameworkDir] = Result;
+  
+  // export *
+  Result->Exports.push_back(Module::ExportDecl(0, true));
+  
   Modules[ModuleName] = Result;
   return Result;
 }

clang/test/Modules/Inputs/AlsoDependsOnModule.framework/Headers/AlsoDependsOnModule.h

@@ -0,0 +1,2 @@
+#import <Module/Module.h> // expected-warning{{treating #import as an import of module 'Module'}}
+

clang/test/Modules/auto-module-import.c

@@ -12,3 +12,8 @@
 #  error DEPENDS_ON_MODULE should have been hidden
 #endif
 
+Module *mod; // expected-error{{unknown type name 'Module'}}
+
+#import <AlsoDependsOnModule/AlsoDependsOnModule.h> // expected-warning{{treating #import as an import of module 'AlsoDependsOnModule'}}
+Module *mod2;
+