1 files changed, 64 insertions, 0 deletions
diff --git a/runtime/art_field.cc b/runtime/art_field.cc
new file mode 100644
index 000000000..cdf896738
--- /dev/null
+++ b/runtime/art_field.cc
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "art_field.h"
+
+#include "art_field-inl.h"
+#include "gc/accounting/card_table-inl.h"
+#include "mirror/object-inl.h"
+#include "mirror/object_array-inl.h"
+#include "runtime.h"
+#include "scoped_thread_state_change.h"
+#include "utils.h"
+#include "well_known_classes.h"
+
+namespace art {
+
+ArtField::ArtField() : access_flags_(0), field_dex_idx_(0), offset_(0) {
+  declaring_class_ = GcRoot<mirror::Class>(nullptr);
+}
+
+void ArtField::SetOffset(MemberOffset num_bytes) {
+  DCHECK(GetDeclaringClass()->IsLoaded() || GetDeclaringClass()->IsErroneous());
+  if (kIsDebugBuild && Runtime::Current()->IsAotCompiler() &&
+      Runtime::Current()->IsCompilingBootImage()) {
+    Primitive::Type type = GetTypeAsPrimitiveType();
+    if (type == Primitive::kPrimDouble || type == Primitive::kPrimLong) {
+      DCHECK_ALIGNED(num_bytes.Uint32Value(), 8);
+    }
+  }
+  // Not called within a transaction.
+  offset_ = num_bytes.Uint32Value();
+}
+
+void ArtField::VisitRoots(RootVisitor* visitor) {
+  declaring_class_.VisitRoot(visitor, RootInfo(kRootStickyClass));
+}
+
+ArtField* ArtField::FindInstanceFieldWithOffset(mirror::Class* klass, uint32_t field_offset) {
+  DCHECK(klass != nullptr);
+  auto* instance_fields = klass->GetIFields();
+  for (size_t i = 0, count = klass->NumInstanceFields(); i < count; ++i) {
+    if (instance_fields[i].GetOffset().Uint32Value() == field_offset) {
+      return &instance_fields[i];
+    }
+  }
+  // We did not find field in the class: look into superclass.
+  return (klass->GetSuperClass() != nullptr) ?
+      FindInstanceFieldWithOffset(klass->GetSuperClass(), field_offset) : nullptr;
+}
+
+}  // namespace art