chore: fix non-threadsafe classes

src/Docfx.YamlSerialization/NodeDeserializers/EmitGenericCollectionNodeDeserializer.cs

@@ -1,6 +1,7 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+using System.Collections.Concurrent;
 using System.Reflection;
 using System.Reflection.Emit;
 using Docfx.YamlSerialization.Helpers;
@@ -20,9 +21,9 @@ public class EmitGenericCollectionNodeDeserializer : INodeDeserializer
     private readonly IObjectFactory _objectFactory;
     private readonly INamingConvention _enumNamingConvention;
     private readonly ITypeInspector _typeDescriptor;
-    private readonly Dictionary<Type, Type?> _gpCache =
+    private readonly ConcurrentDictionary<Type, Type?> _gpCache =
         new();
-    private readonly Dictionary<Type, Action<IParser, Type, Func<IParser, Type, object?>, object?, INamingConvention, ITypeInspector>> _actionCache =
+    private readonly ConcurrentDictionary<Type, Action<IParser, Type, Func<IParser, Type, object?>, object?, INamingConvention, ITypeInspector>> _actionCache =
         new();
 
     public EmitGenericCollectionNodeDeserializer(IObjectFactory objectFactory, INamingConvention enumNamingConvention, ITypeInspector typeDescriptor)

src/Docfx.YamlSerialization/NodeDeserializers/EmitGenericDictionaryNodeDeserializer.cs

@@ -1,6 +1,7 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+using System.Collections.Concurrent;
 using System.ComponentModel;
 using System.Reflection;
 using System.Reflection.Emit;
@@ -16,8 +17,8 @@ public class EmitGenericDictionaryNodeDeserializer : INodeDeserializer
     private static readonly MethodInfo DeserializeHelperMethod =
         typeof(EmitGenericDictionaryNodeDeserializer).GetMethod(nameof(DeserializeHelper))!;
     private readonly IObjectFactory _objectFactory;
-    private readonly Dictionary<Type, Type[]?> _gpCache = [];
-    private readonly Dictionary<Tuple<Type, Type>, Action<IParser, Type, Func<IParser, Type, object?>, object?>> _actionCache = [];
+    private readonly ConcurrentDictionary<Type, Type[]?> _gpCache = [];
+    private readonly ConcurrentDictionary<Tuple<Type, Type>, Action<IParser, Type, Func<IParser, Type, object?>, object?>> _actionCache = [];
 
     public EmitGenericDictionaryNodeDeserializer(IObjectFactory objectFactory)
     {

src/Docfx.YamlSerialization/ObjectFactories/DefaultEmitObjectFactory.cs

@@ -1,6 +1,7 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+using System.Collections.Concurrent;
 using System.Reflection;
 using System.Reflection.Emit;
 
@@ -10,7 +11,7 @@ namespace Docfx.YamlSerialization.ObjectFactories;
 
 public class DefaultEmitObjectFactory : ObjectFactoryBase
 {
-    private readonly Dictionary<Type, Func<object>> _cache = [];
+    private readonly ConcurrentDictionary<Type, Func<object>> _cache = [];
     private static Type[] EmptyTypes => Type.EmptyTypes;
 
     public override object Create(Type type)

src/Docfx.YamlSerialization/ObjectGraphTraversalStrategies/FullObjectGraphTraversalStrategy.cs

@@ -2,6 +2,7 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 
 using System.Collections;
+using System.Collections.Concurrent;
 using System.ComponentModel;
 using System.Diagnostics;
 using System.Reflection;
@@ -32,7 +33,7 @@ public class FullObjectGraphTraversalStrategy : IObjectGraphTraversalStrategy
     private readonly IObjectFactory _objectFactory;
 
     // private readonly Dictionary<Tuple<Type, Type>, Action<IPropertyDescriptor?, IObjectDescriptor, IObjectGraphVisitor, Type, Type, IObjectGraphVisitorContext, Stack<FullObjectGraphTraversalStrategy.ObjectPathSegment>, ObjectSerializer>> _behaviorCache = new();
-    private readonly Dictionary<Tuple<Type, Type, Type>, Action<FullObjectGraphTraversalStrategy, object, IObjectGraphVisitor, INamingConvention, IObjectGraphVisitorContext, Stack<ObjectPathSegment>, ObjectSerializer>> _traverseGenericDictionaryCache = new();
+    private readonly ConcurrentDictionary<Tuple<Type, Type, Type>, Action<FullObjectGraphTraversalStrategy, object, IObjectGraphVisitor, INamingConvention, IObjectGraphVisitorContext, Stack<ObjectPathSegment>, ObjectSerializer>> _traverseGenericDictionaryCache = new();
 
     protected YamlSerializer Serializer { get; }
 

src/Docfx.YamlSerialization/YamlSerializer.cs

@@ -1,6 +1,7 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+using System.Collections.Concurrent;
 using Docfx.YamlSerialization.Helpers;
 using Docfx.YamlSerialization.ObjectDescriptors;
 using Docfx.YamlSerialization.ObjectGraphTraversalStrategies;
@@ -141,7 +142,7 @@ private IEventEmitter CreateEventEmitter()
         {
             return new TypeAssigningEventEmitter(
                 writer,
-                new Dictionary<Type, TagName>(),
+                new ConcurrentDictionary<Type, TagName>(),
                 quoteNecessaryStrings: false,
                 quoteYaml1_1Strings: false,
                 defaultScalarStyle: ScalarStyle.Any,