Implement support for wildcard exports in modules, allowing a module
to re-export anything that it imports. This opt-in feature makes a
module behave more like a header, because it can be used to re-export
the transitive closure of a (sub)module's dependencies.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145811 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Basic/Module.cpp b/lib/Basic/Module.cpp
index 6bca55c..59fced5 100644
--- a/lib/Basic/Module.cpp
+++ b/lib/Basic/Module.cpp
@@ -25,6 +25,18 @@
}
+bool Module::isSubModuleOf(Module *Other) const {
+ const Module *This = this;
+ do {
+ if (This == Other)
+ return true;
+
+ This = This->Parent;
+ } while (This);
+
+ return false;
+}
+
std::string Module::getFullModuleName() const {
llvm::SmallVector<StringRef, 2> Names;