Add manualRetain() and manualRelease() to ImmutableMapRef, and add a …

…new constructor. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169572 91177308-0d34-0410-b5e6-96231b3b80d8
hylsd · Dec 7, 2012 · b02ed5b · b02ed5b
1 parent 4a0ed9f
commit b02ed5b
Showing 1 changed file with 15 additions and 0 deletions.
diff --git a/include/llvm/ADT/ImmutableMap.h b/include/llvm/ADT/ImmutableMap.h
@@ -288,6 +288,13 @@ class ImmutableMapRef {
       Factory(F) {
     if (Root) { Root->retain(); }
   }
+
+  explicit ImmutableMapRef(const ImmutableMap<KeyT, ValT> &X,
+                           typename ImmutableMap<KeyT, ValT>::Factory &F)
+    : Root(X.getRootWithoutRetain()),
+      Factory(F.getTreeFactory()) {
+    if (Root) { Root->retain(); }
+  }
 
   ImmutableMapRef(const ImmutableMapRef &X)
     : Root(X.Root),
@@ -318,6 +325,14 @@ class ImmutableMapRef {
     return ImmutableMapRef(0, F);
   }
 
+  void manualRetain() {
+    if (Root) Root->retain();
+  }
+
+  void manualRelease() {
+    if (Root) Root->release();
+  }
+
   ImmutableMapRef add(key_type_ref K, data_type_ref D) {
     TreeTy *NewT = Factory->add(Root, std::pair<key_type, data_type>(K, D));
     return ImmutableMapRef(NewT, Factory);