third_party/protobuf: Update to HEAD (f52e188fe4)

third_party/protobuf/src/google/protobuf/has_bits.h

 // Protocol Buffers - Google's data interchange format
 // Copyright 2008 Google Inc.  All rights reserved.
 // https://developers.google.com/protocol-buffers/
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
@@ skipping 10 matching lines @@
 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 // OWNER 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.
 
-#ifndef GOOGLE_PROTOBUF_ARENA_TEST_UTIL_H__
-#define GOOGLE_PROTOBUF_ARENA_TEST_UTIL_H__
+#ifndef GOOGLE_PROTOBUF_HAS_BITS_H__
+#define GOOGLE_PROTOBUF_HAS_BITS_H__
 
+#include <google/protobuf/stubs/common.h>
 
 namespace google {
 namespace protobuf {
 namespace internal {
 
-class NoHeapChecker {
+template<size_t doublewords>
+class HasBits {
  public:
-  NoHeapChecker() {
-    capture_alloc.Hook();
+  HasBits() GOOGLE_ATTRIBUTE_ALWAYS_INLINE { Clear(); }
+
+  void Clear() GOOGLE_ATTRIBUTE_ALWAYS_INLINE {
+    memset(has_bits_, 0, sizeof(has_bits_));
   }
-  ~NoHeapChecker();
+
+  ::google::protobuf::uint32& operator[](int index) GOOGLE_ATTRIBUTE_ALWAYS_INLINE {
+    return has_bits_[index];
+  }
+
+  const ::google::protobuf::uint32& operator[](int index) const GOOGLE_ATTRIBUTE_ALWAYS_INLINE {
+    return has_bits_[index];
+  }
+
+  bool operator==(const HasBits<doublewords>& rhs) const {
+    return memcmp(has_bits_, rhs.has_bits_, sizeof(has_bits_)) == 0;
+  }
+
+  bool operator!=(const HasBits<doublewords>& rhs) const {
+    return !(*this == rhs);
+  }
  private:
-  class NewDeleteCapture {
-   public:
-    // TOOD(xiaofeng): Implement this for opensource protobuf.
-    void Hook() {}
-    void Unhook() {}
-    int alloc_count() { return 0; }
-    int free_count() { return 0; }
-  } capture_alloc;
+  ::google::protobuf::uint32 has_bits_[doublewords];
 };
 
 }  // namespace internal
 }  // namespace protobuf
 
 }  // namespace google
-#endif  // GOOGLE_PROTOBUF_ARENA_TEST_UTIL_H__
+#endif  // GOOGLE_PROTOBUF_HAS_BITS_H__