Implement basic support for merging function declarations across

translation units.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95794 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 10 insertions, 3 deletions

diff --git a/lib/Frontend/ASTMerge.cpp b/lib/Frontend/ASTMerge.cpp
index f2de09a74c..fd34ddae12 100644
--- a/lib/Frontend/ASTMerge.cpp
+++ b/lib/Frontend/ASTMerge.cpp
@@ -57,14 +57,21 @@ void ASTMergeAction::ExecuteAction() {
     for (DeclContext::decl_iterator D = TU->decls_begin(), 
                                  DEnd = TU->decls_end();
          D != DEnd; ++D) {
-      // FIXME: We only merge variables whose names start with x. Why
-      // would anyone want anything else?
-      if (VarDecl *VD = dyn_cast<VarDecl>(*D))
+      // FIXME: We only merge variables whose names start with x and functions
+      // whose names start with 'f'. Why would anyone want anything else?
+      if (VarDecl *VD = dyn_cast<VarDecl>(*D)) {
         if (VD->getIdentifier() && 
             *VD->getIdentifier()->getNameStart() == 'x') {
           Decl *Merged = Importer.Import(VD);
           (void)Merged;
         }
+      } else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(*D)) {
+        if (FD->getIdentifier() &&
+            *FD->getIdentifier()->getNameStart() == 'f') {
+          Decl *Merged = Importer.Import(FD);
+          (void)Merged;
+        }
+      }
     }
 
     delete Unit;