1 files changed, 36 insertions, 0 deletions
diff --git a/deps/v8/src/execution/protectors-inl.h b/deps/v8/src/execution/protectors-inl.h
new file mode 100644
index 0000000000..b2428063e1
--- /dev/null
+++ b/deps/v8/src/execution/protectors-inl.h
@@ -0,0 +1,36 @@
+// Copyright 2019 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_EXECUTION_PROTECTORS_INL_H_
+#define V8_EXECUTION_PROTECTORS_INL_H_
+
+#include "src/execution/protectors.h"
+#include "src/objects/contexts-inl.h"
+#include "src/objects/property-cell-inl.h"
+#include "src/objects/smi.h"
+
+namespace v8 {
+namespace internal {
+
+#define DEFINE_PROTECTOR_ON_NATIVE_CONTEXT_CHECK(name, cell)                \
+  bool Protectors::Is##name##Intact(Handle<NativeContext> native_context) { \
+    PropertyCell species_cell = native_context->cell();                     \
+    return species_cell.value().IsSmi() &&                                  \
+           Smi::ToInt(species_cell.value()) == kProtectorValid;             \
+  }
+DECLARED_PROTECTORS_ON_NATIVE_CONTEXT(DEFINE_PROTECTOR_ON_NATIVE_CONTEXT_CHECK)
+
+#define DEFINE_PROTECTOR_ON_ISOLATE_CHECK(name, root_index, unused_cell) \
+  bool Protectors::Is##name##Intact(Isolate* isolate) {                  \
+    PropertyCell cell =                                                  \
+        PropertyCell::cast(isolate->root(RootIndex::k##root_index));     \
+    return cell.value().IsSmi() &&                                       \
+           Smi::ToInt(cell.value()) == kProtectorValid;                  \
+  }
+DECLARED_PROTECTORS_ON_ISOLATE(DEFINE_PROTECTOR_ON_ISOLATE_CHECK)
+
+}  // namespace internal
+}  // namespace v8
+
+#endif  // V8_EXECUTION_PROTECTORS_INL_H_