docker swarm

builder-docker/jenkins/node-v18.20.2-linux-x64/include/node/v8-memory-span.h

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+// Copyright 2021 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 INCLUDE_V8_MEMORY_SPAN_H_
+#define INCLUDE_V8_MEMORY_SPAN_H_
+
+#include <stddef.h>
+
+#include "v8config.h"  // NOLINT(build/include_directory)
+
+namespace v8 {
+
+/**
+ * Points to an unowned continous buffer holding a known number of elements.
+ *
+ * This is similar to std::span (under consideration for C++20), but does not
+ * require advanced C++ support. In the (far) future, this may be replaced with
+ * or aliased to std::span.
+ *
+ * To facilitate future migration, this class exposes a subset of the interface
+ * implemented by std::span.
+ */
+template <typename T>
+class V8_EXPORT MemorySpan {
+ public:
+  /** The default constructor creates an empty span. */
+  constexpr MemorySpan() = default;
+
+  constexpr MemorySpan(T* data, size_t size) : data_(data), size_(size) {}
+
+  /** Returns a pointer to the beginning of the buffer. */
+  constexpr T* data() const { return data_; }
+  /** Returns the number of elements that the buffer holds. */
+  constexpr size_t size() const { return size_; }
+
+ private:
+  T* data_ = nullptr;
+  size_t size_ = 0;
+};
+
+}  // namespace v8
+#endif  // INCLUDE_V8_MEMORY_SPAN_H_