1 files changed, 36 insertions, 0 deletions
diff --git a/deps/v8/src/common/checks.h b/deps/v8/src/common/checks.h
new file mode 100644
index 0000000000..ef9eb27ca0
--- /dev/null
+++ b/deps/v8/src/common/checks.h
@@ -0,0 +1,36 @@
+// Copyright 2012 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_COMMON_CHECKS_H_
+#define V8_COMMON_CHECKS_H_
+
+#include "include/v8-internal.h"
+#include "src/base/logging.h"
+#include "src/common/globals.h"
+
+namespace v8 {
+
+class Value;
+
+namespace internal {
+
+#ifdef ENABLE_SLOW_DCHECKS
+#define SLOW_DCHECK(condition) \
+  CHECK(!v8::internal::FLAG_enable_slow_asserts || (condition))
+V8_EXPORT_PRIVATE extern bool FLAG_enable_slow_asserts;
+#else
+#define SLOW_DCHECK(condition) ((void)0)
+static const bool FLAG_enable_slow_asserts = false;
+#endif
+
+}  // namespace internal
+}  // namespace v8
+
+#define DCHECK_TAG_ALIGNED(address) \
+  DCHECK((address & ::v8::internal::kHeapObjectTagMask) == 0)
+
+#define DCHECK_SIZE_TAG_ALIGNED(size) \
+  DCHECK((size & ::v8::internal::kHeapObjectTagMask) == 0)
+
+#endif  // V8_COMMON_CHECKS_H_