1 files changed, 43 insertions, 0 deletions
diff --git a/tools/aapt2/io/File.cpp b/tools/aapt2/io/File.cpp
new file mode 100644
index 000000000000..739c0d21e06e
--- /dev/null
+++ b/tools/aapt2/io/File.cpp
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2016 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 "io/File.h"
+
+#include <memory>
+
+namespace aapt {
+namespace io {
+
+IFile* IFile::createFileSegment(size_t offset, size_t len) {
+   FileSegment* fileSegment = new FileSegment(this, offset, len);
+   mSegments.push_back(std::unique_ptr<IFile>(fileSegment));
+   return fileSegment;
+}
+
+std::unique_ptr<IData> FileSegment::openAsData() {
+    std::unique_ptr<IData> data = mFile->openAsData();
+    if (!data) {
+        return {};
+    }
+
+    if (mOffset <= data->size() - mLen) {
+        return util::make_unique<DataSegment>(std::move(data), mOffset, mLen);
+    }
+    return {};
+}
+
+} // namespace io
+} // namespace aapt