110 lines
4.4 KiB
C#
110 lines
4.4 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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namespace YamlDotNet.Serialization.ObjectGraphVisitors
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{
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/// <summary>
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/// A base class that simplifies the correct implementation of <see cref="IObjectGraphVisitor{Nothing}" />.
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/// </summary>
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public abstract class PreProcessingPhaseObjectGraphVisitorSkeleton : IObjectGraphVisitor<Nothing>
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{
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protected readonly IEnumerable<IYamlTypeConverter> typeConverters;
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public PreProcessingPhaseObjectGraphVisitorSkeleton(IEnumerable<IYamlTypeConverter> typeConverters)
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{
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this.typeConverters = typeConverters != null
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? typeConverters.ToList()
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: Enumerable.Empty<IYamlTypeConverter>();
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}
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bool IObjectGraphVisitor<Nothing>.Enter(IObjectDescriptor value, Nothing context)
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{
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var typeConverter = typeConverters.FirstOrDefault(t => t.Accepts(value.Type));
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if (typeConverter != null)
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{
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return false;
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}
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if (value.Value is IYamlConvertible convertible)
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{
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return false;
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}
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#pragma warning disable 0618 // IYamlSerializable is obsolete
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if (value.Value is IYamlSerializable serializable)
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{
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return false;
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}
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#pragma warning restore
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return Enter(value);
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}
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bool IObjectGraphVisitor<Nothing>.EnterMapping(IPropertyDescriptor key, IObjectDescriptor value, Nothing context)
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{
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return EnterMapping(key, value);
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}
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bool IObjectGraphVisitor<Nothing>.EnterMapping(IObjectDescriptor key, IObjectDescriptor value, Nothing context)
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{
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return EnterMapping(key, value);
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}
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void IObjectGraphVisitor<Nothing>.VisitMappingEnd(IObjectDescriptor mapping, Nothing context)
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{
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VisitMappingEnd(mapping);
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}
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void IObjectGraphVisitor<Nothing>.VisitMappingStart(IObjectDescriptor mapping, Type keyType, Type valueType, Nothing context)
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{
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VisitMappingStart(mapping, keyType, valueType);
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}
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void IObjectGraphVisitor<Nothing>.VisitScalar(IObjectDescriptor scalar, Nothing context)
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{
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VisitScalar(scalar);
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}
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void IObjectGraphVisitor<Nothing>.VisitSequenceEnd(IObjectDescriptor sequence, Nothing context)
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{
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VisitSequenceEnd(sequence);
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}
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void IObjectGraphVisitor<Nothing>.VisitSequenceStart(IObjectDescriptor sequence, Type elementType, Nothing context)
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{
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VisitSequenceStart(sequence, elementType);
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}
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protected abstract bool Enter(IObjectDescriptor value);
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protected abstract bool EnterMapping(IPropertyDescriptor key, IObjectDescriptor value);
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protected abstract bool EnterMapping(IObjectDescriptor key, IObjectDescriptor value);
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protected abstract void VisitMappingEnd(IObjectDescriptor mapping);
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protected abstract void VisitMappingStart(IObjectDescriptor mapping, Type keyType, Type valueType);
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protected abstract void VisitScalar(IObjectDescriptor scalar);
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protected abstract void VisitSequenceEnd(IObjectDescriptor sequence);
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protected abstract void VisitSequenceStart(IObjectDescriptor sequence, Type elementType);
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}
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}
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