1 files changed, 48 insertions, 0 deletions
diff --git a/chromium/v8/src/execution/protectors.cc b/chromium/v8/src/execution/protectors.cc
new file mode 100644
index 00000000000..3ac07eede38
--- /dev/null
+++ b/chromium/v8/src/execution/protectors.cc
@@ -0,0 +1,48 @@
+// 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.
+
+#include "src/execution/protectors.h"
+
+#include "src/execution/isolate-inl.h"
+#include "src/execution/protectors-inl.h"
+#include "src/handles/handles-inl.h"
+#include "src/objects/contexts.h"
+#include "src/objects/property-cell.h"
+#include "src/objects/smi.h"
+#include "src/tracing/trace-event.h"
+#include "src/utils/utils.h"
+
+namespace v8 {
+namespace internal {
+
+#define INVALIDATE_PROTECTOR_ON_NATIVE_CONTEXT_DEFINITION(name, cell)       \
+  void Protectors::Invalidate##name(Isolate* isolate,                       \
+                                    Handle<NativeContext> native_context) { \
+    DCHECK_EQ(*native_context, isolate->raw_native_context());              \
+    DCHECK(native_context->cell().value().IsSmi());                         \
+    DCHECK(Is##name##Intact(native_context));                               \
+    Handle<PropertyCell> species_cell(native_context->cell(), isolate);     \
+    PropertyCell::SetValueWithInvalidation(                                 \
+        isolate, #cell, species_cell,                                       \
+        handle(Smi::FromInt(kProtectorInvalid), isolate));                  \
+    DCHECK(!Is##name##Intact(native_context));                              \
+  }
+DECLARED_PROTECTORS_ON_NATIVE_CONTEXT(
+    INVALIDATE_PROTECTOR_ON_NATIVE_CONTEXT_DEFINITION)
+#undef INVALIDATE_PROTECTOR_ON_NATIVE_CONTEXT_DEFINITION
+
+#define INVALIDATE_PROTECTOR_ON_ISOLATE_DEFINITION(name, unused_index, cell) \
+  void Protectors::Invalidate##name(Isolate* isolate) {                      \
+    DCHECK(isolate->factory()->cell()->value().IsSmi());                     \
+    DCHECK(Is##name##Intact(isolate));                                       \
+    PropertyCell::SetValueWithInvalidation(                                  \
+        isolate, #cell, isolate->factory()->cell(),                          \
+        handle(Smi::FromInt(kProtectorInvalid), isolate));                   \
+    DCHECK(!Is##name##Intact(isolate));                                      \
+  }
+DECLARED_PROTECTORS_ON_ISOLATE(INVALIDATE_PROTECTOR_ON_ISOLATE_DEFINITION)
+#undef INVALIDATE_PROTECTOR_ON_ISOLATE_DEFINITION
+
+}  // namespace internal
+}  // namespace v8