Import YamlDotNet.

Assets/YamlDotNet/Serialization/Serializer.cs

@@ -0,0 +1,144 @@
+// This file is part of YamlDotNet - A .NET library for YAML.
+// Copyright (c) Antoine Aubry and contributors
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy of
+// this software and associated documentation files (the "Software"), to deal in
+// the Software without restriction, including without limitation the rights to
+// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+// of the Software, and to permit persons to whom the Software is furnished to do
+// so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+using System;
+using System.IO;
+using YamlDotNet.Core;
+using YamlDotNet.Core.Events;
+
+namespace YamlDotNet.Serialization
+{
+    public sealed class Serializer : ISerializer
+    {
+        private readonly IValueSerializer valueSerializer;
+        private readonly EmitterSettings emitterSettings;
+
+        /// <summary>
+        /// Initializes a new instance of <see cref="Serializer" /> using the default configuration.
+        /// </summary>
+        /// <remarks>
+        /// To customize the behavior of the serializer, use <see cref="SerializerBuilder" />.
+        /// </remarks>
+        public Serializer()
+            : this(new SerializerBuilder().BuildValueSerializer(), EmitterSettings.Default)
+        {
+        }
+
+        /// <remarks>
+        /// This constructor is private to discourage its use.
+        /// To invoke it, call the <see cref="FromValueSerializer"/> method.
+        /// </remarks>
+        private Serializer(IValueSerializer valueSerializer, EmitterSettings emitterSettings)
+        {
+            this.valueSerializer = valueSerializer ?? throw new ArgumentNullException(nameof(valueSerializer));
+            this.emitterSettings = emitterSettings ?? throw new ArgumentNullException(nameof(emitterSettings));
+        }
+
+        /// <summary>
+        /// Creates a new <see cref="Serializer" /> that uses the specified <see cref="IValueSerializer" />.
+        /// This method is available for advanced scenarios. The preferred way to customize the behavior of the
+        /// deserializer is to use <see cref="SerializerBuilder" />.
+        /// </summary>
+        public static Serializer FromValueSerializer(IValueSerializer valueSerializer, EmitterSettings emitterSettings)
+        {
+            return new Serializer(valueSerializer, emitterSettings);
+        }
+
+        /// <summary>
+        /// Serializes the specified object.
+        /// </summary>
+        /// <param name="writer">The <see cref="TextWriter" /> where to serialize the object.</param>
+        /// <param name="graph">The object to serialize.</param>
+        public void Serialize(TextWriter writer, object graph)
+        {
+            Serialize(new Emitter(writer, emitterSettings), graph);
+        }
+
+        /// <summary>
+        /// Serializes the specified object into a string.
+        /// </summary>
+        /// <param name="graph">The object to serialize.</param>
+        public string Serialize(object graph)
+        {
+            using var buffer = new StringWriter();
+            Serialize(buffer, graph);
+            return buffer.ToString();
+        }
+
+        /// <summary>
+        /// Serializes the specified object.
+        /// </summary>
+        /// <param name="writer">The <see cref="TextWriter" /> where to serialize the object.</param>
+        /// <param name="graph">The object to serialize.</param>
+        /// <param name="type">The static type of the object to serialize.</param>
+        public void Serialize(TextWriter writer, object graph, Type type)
+        {
+            Serialize(new Emitter(writer, emitterSettings), graph, type);
+        }
+
+        /// <summary>
+        /// Serializes the specified object.
+        /// </summary>
+        /// <param name="emitter">The <see cref="IEmitter" /> where to serialize the object.</param>
+        /// <param name="graph">The object to serialize.</param>
+        public void Serialize(IEmitter emitter, object graph)
+        {
+            if (emitter == null)
+            {
+                throw new ArgumentNullException(nameof(emitter));
+            }
+
+            EmitDocument(emitter, graph, null);
+        }
+
+        /// <summary>
+        /// Serializes the specified object.
+        /// </summary>
+        /// <param name="emitter">The <see cref="IEmitter" /> where to serialize the object.</param>
+        /// <param name="graph">The object to serialize.</param>
+        /// <param name="type">The static type of the object to serialize.</param>
+        public void Serialize(IEmitter emitter, object graph, Type type)
+        {
+            if (emitter == null)
+            {
+                throw new ArgumentNullException(nameof(emitter));
+            }
+
+            if (type == null)
+            {
+                throw new ArgumentNullException(nameof(type));
+            }
+
+            EmitDocument(emitter, graph, type);
+        }
+
+        private void EmitDocument(IEmitter emitter, object graph, Type? type)
+        {
+            emitter.Emit(new StreamStart());
+            emitter.Emit(new DocumentStart());
+
+            valueSerializer.SerializeValue(emitter, graph, type);
+
+            emitter.Emit(new DocumentEnd(true));
+            emitter.Emit(new StreamEnd());
+        }
+    }
+}