1 files changed, 69 insertions, 0 deletions
diff --git a/compiler/hermes/include/hermes/core/Message.h b/compiler/hermes/include/hermes/core/Message.h
new file mode 100644
index 000000000..28cfd7942
--- /dev/null
+++ b/compiler/hermes/include/hermes/core/Message.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2019 Samsung Electronics Co., Ltd. All Rights Reserved
+ *
+ * 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.
+ */
+
+#ifndef __HERMES_MESSAGE_H__
+#define __HERMES_MESSAGE_H__
+
+#include <memory>
+#include <sstream>
+#include <string>
+#include <vector>
+
+namespace hermes
+{
+
+/**
+ * @brief Mutie-line text message
+ */
+class MessageText
+{
+public:
+  /// WARNING! Be careful. This constructor updates "ss".
+  MessageText(std::stringstream &ss);
+
+public:
+  /// @brief The number of lines
+  uint32_t lines(void) const { return _lines.size(); }
+  /// @breif The content of a specific line
+  const std::string &line(uint32_t n) const { return _lines.at(n); }
+
+private:
+  std::vector<std::string> _lines;
+};
+
+/**
+ * @brief Message with metadata
+ *
+ * TODO Add "Timestamp" field
+ * TODO Add "Severity" field
+ * TODO Support extensible "attribute" annotation
+ */
+class Message final
+{
+public:
+  Message() = default;
+
+public:
+  void text(std::unique_ptr<MessageText> &&text) { _text = std::move(text); }
+  const MessageText *text(void) const { return _text.get(); }
+
+private:
+  std::unique_ptr<MessageText> _text;
+};
+
+} // namespace hermes
+
+#endif // __HERMES_MESSAGE_H__