1 files changed, 71 insertions, 0 deletions
diff --git a/deps/v8/src/objects/struct-inl.h b/deps/v8/src/objects/struct-inl.h
new file mode 100644
index 0000000000..8a5b53efbb
--- /dev/null
+++ b/deps/v8/src/objects/struct-inl.h
@@ -0,0 +1,71 @@
+// Copyright 2018 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_OBJECTS_STRUCT_INL_H_
+#define V8_OBJECTS_STRUCT_INL_H_
+
+#include "src/objects/struct.h"
+
+#include "src/heap/heap-write-barrier-inl.h"
+#include "src/objects/oddball.h"
+
+// Has to be the last include (doesn't have include guards):
+#include "src/objects/object-macros.h"
+
+namespace v8 {
+namespace internal {
+
+OBJECT_CONSTRUCTORS_IMPL(Struct, HeapObject)
+// TODO(jkummerow): Fix IsTuple2() and IsTuple3() to be subclassing-aware,
+// or rethink this more generally (see crbug.com/v8/8516).
+Tuple2::Tuple2(Address ptr) : Struct(ptr) {}
+Tuple3::Tuple3(Address ptr) : Tuple2(ptr) {}
+OBJECT_CONSTRUCTORS_IMPL(AccessorPair, Struct)
+
+CAST_ACCESSOR(AccessorPair)
+CAST_ACCESSOR(Struct)
+CAST_ACCESSOR(Tuple2)
+CAST_ACCESSOR(Tuple3)
+
+void Struct::InitializeBody(int object_size) {
+  Object value = GetReadOnlyRoots().undefined_value();
+  for (int offset = kHeaderSize; offset < object_size; offset += kPointerSize) {
+    WRITE_FIELD(this, offset, value);
+  }
+}
+
+ACCESSORS(Tuple2, value1, Object, kValue1Offset)
+ACCESSORS(Tuple2, value2, Object, kValue2Offset)
+ACCESSORS(Tuple3, value3, Object, kValue3Offset)
+
+ACCESSORS(AccessorPair, getter, Object, kGetterOffset)
+ACCESSORS(AccessorPair, setter, Object, kSetterOffset)
+
+Object AccessorPair::get(AccessorComponent component) {
+  return component == ACCESSOR_GETTER ? getter() : setter();
+}
+
+void AccessorPair::set(AccessorComponent component, Object value) {
+  if (component == ACCESSOR_GETTER) {
+    set_getter(value);
+  } else {
+    set_setter(value);
+  }
+}
+
+void AccessorPair::SetComponents(Object getter, Object setter) {
+  if (!getter->IsNull()) set_getter(getter);
+  if (!setter->IsNull()) set_setter(setter);
+}
+
+bool AccessorPair::Equals(Object getter_value, Object setter_value) {
+  return (getter() == getter_value) && (setter() == setter_value);
+}
+
+}  // namespace internal
+}  // namespace v8
+
+#include "src/objects/object-macros-undef.h"
+
+#endif  // V8_OBJECTS_STRUCT_INL_H_