59 lines
2.9 KiB
C#
59 lines
2.9 KiB
C#
// This file is part of YamlDotNet - A .NET library for YAML.
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// Copyright (c) Antoine Aubry and contributors
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy of
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// this software and associated documentation files (the "Software"), to deal in
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// the Software without restriction, including without limitation the rights to
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// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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// of the Software, and to permit persons to whom the Software is furnished to do
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// so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using YamlDotNet.Helpers;
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using YamlDotNet.Serialization.Utilities;
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namespace YamlDotNet.Serialization.ObjectGraphTraversalStrategies
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{
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/// <summary>
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/// An implementation of <see cref="IObjectGraphTraversalStrategy"/> that traverses
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/// properties that are read/write, collections and dictionaries, while ensuring that
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/// the graph can be regenerated from the resulting document.
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/// </summary>
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public class RoundtripObjectGraphTraversalStrategy : FullObjectGraphTraversalStrategy
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{
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private readonly TypeConverterCache converters;
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private readonly Settings settings;
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public RoundtripObjectGraphTraversalStrategy(IEnumerable<IYamlTypeConverter> converters, ITypeInspector typeDescriptor, ITypeResolver typeResolver, int maxRecursion,
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INamingConvention namingConvention, Settings settings, IObjectFactory factory)
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: base(typeDescriptor, typeResolver, maxRecursion, namingConvention, factory)
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{
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this.converters = new TypeConverterCache(converters);
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this.settings = settings;
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}
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protected override void TraverseProperties<TContext>(IObjectDescriptor value, IObjectGraphVisitor<TContext> visitor, TContext context, Stack<ObjectPathSegment> path, ObjectSerializer serializer)
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{
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if (!value.Type.HasDefaultConstructor(settings.AllowPrivateConstructors) && !converters.TryGetConverterForType(value.Type, out _))
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{
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throw new InvalidOperationException($"Type '{value.Type}' cannot be deserialized because it does not have a default constructor or a type converter.");
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}
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base.TraverseProperties(value, visitor, context, path, serializer);
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}
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}
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}
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