1 files changed, 80 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/bytecode/StructureStubInfo.cpp b/Source/JavaScriptCore/bytecode/StructureStubInfo.cpp
new file mode 100644
index 0000000..018d832
--- /dev/null
+++ b/Source/JavaScriptCore/bytecode/StructureStubInfo.cpp
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2008 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#include "config.h"
+#include "StructureStubInfo.h"
+
+namespace JSC {
+
+#if ENABLE(JIT)
+void StructureStubInfo::deref()
+{
+    switch (accessType) {
+    case access_get_by_id_self:
+        u.getByIdSelf.baseObjectStructure->deref();
+        return;
+    case access_get_by_id_proto:
+        u.getByIdProto.baseObjectStructure->deref();
+        u.getByIdProto.prototypeStructure->deref();
+        return;
+    case access_get_by_id_chain:
+        u.getByIdChain.baseObjectStructure->deref();
+        u.getByIdChain.chain->deref();
+        return;
+    case access_get_by_id_self_list: {
+        PolymorphicAccessStructureList* polymorphicStructures = u.getByIdSelfList.structureList;
+        polymorphicStructures->derefStructures(u.getByIdSelfList.listSize);
+        delete polymorphicStructures;
+        return;
+    }
+    case access_get_by_id_proto_list: {
+        PolymorphicAccessStructureList* polymorphicStructures = u.getByIdProtoList.structureList;
+        polymorphicStructures->derefStructures(u.getByIdProtoList.listSize);
+        delete polymorphicStructures;
+        return;
+    }
+    case access_put_by_id_transition:
+        u.putByIdTransition.previousStructure->deref();
+        u.putByIdTransition.structure->deref();
+        u.putByIdTransition.chain->deref();
+        return;
+    case access_put_by_id_replace:
+        u.putByIdReplace.baseObjectStructure->deref();
+        return;
+    case access_get_by_id:
+    case access_put_by_id:
+    case access_get_by_id_generic:
+    case access_put_by_id_generic:
+    case access_get_array_length:
+    case access_get_string_length:
+        // These instructions don't ref their Structures.
+        return;
+    default:
+        ASSERT_NOT_REACHED();
+    }
+}
+#endif
+
+} // namespace JSC