Merge branch 'dev' into fix/nullable-down-cast-3-0

Author: baywet

src/Microsoft.OpenApi/Interfaces/IOpenApiReferenceHolder.cs

@@ -8,22 +8,14 @@ namespace Microsoft.OpenApi.Interfaces
     /// <summary>
     /// A generic interface for OpenApiReferenceable objects that have a target.
     /// </summary>
-    /// <typeparam name="T">Type of the target being referenced</typeparam>
-    public interface IOpenApiReferenceHolder<out T> : IOpenApiReferenceHolder where T : IOpenApiReferenceable
+    /// <typeparam name="T">The type of the target being referenced</typeparam>
+    /// <typeparam name="V">The type of the interface implemented by both the target and the reference type</typeparam>
+    public interface IOpenApiReferenceHolder<out T, V> : IOpenApiReferenceHolder where T : IOpenApiReferenceable, V
     {
         /// <summary>
         /// Gets the resolved target object.
         /// </summary>
         T Target { get; }
-    }
-    /// <summary>
-    /// A generic interface for OpenApiReferenceable objects that have a target.
-    /// </summary>
-    /// <typeparam name="T">The type of the target being referenced</typeparam>
-    /// <typeparam name="V">The type of the interface implemented by both the target and the reference type</typeparam>
-    public interface IOpenApiReferenceHolder<out T, V> : IOpenApiReferenceHolder<T> where T : IOpenApiReferenceable, V
-    {
-        //TODO merge this interface with the previous once all implementations are updated
         /// <summary>
         /// Copy the reference as a target element with overrides.
         /// </summary>
@@ -37,8 +29,7 @@ public interface IOpenApiReferenceHolder : IOpenApiSerializable
         /// <summary>
         /// Indicates if object is populated with data or is just a reference to the data
         /// </summary>
-        bool UnresolvedReference { get; set; }
-        //TODO the UnresolvedReference property setter should be removed and a default implementation that checks whether the target is null for the getter should be provided instead
+        bool UnresolvedReference { get; }
 
         /// <summary>
         /// Reference object.

src/Microsoft.OpenApi/Interfaces/IShallowCopyable.cs

@@ -0,0 +1,12 @@
+namespace Microsoft.OpenApi.Interfaces;
+/// <summary>
+/// Interface for shallow copyable objects.
+/// </summary>
+/// <typeparam name="T">The type of the resulting object</typeparam>
+public interface IShallowCopyable<out T>
+{
+    /// <summary>
+    /// Create a shallow copy of the current instance.
+    /// </summary>
+    T CreateShallowCopy();
+}

src/Microsoft.OpenApi/Models/Interfaces/IOpenApiCallback.cs

@@ -9,7 +9,7 @@ namespace Microsoft.OpenApi.Models.Interfaces;
 /// Defines the base properties for the callback object.
 /// This interface is provided for type assertions but should not be implemented by package consumers beyond automatic mocking.
 /// </summary>
-public interface IOpenApiCallback : IOpenApiSerializable, IOpenApiReadOnlyExtensible
+public interface IOpenApiCallback : IOpenApiSerializable, IOpenApiReadOnlyExtensible, IShallowCopyable<IOpenApiCallback>
 {
     /// <summary>
     /// A Path Item Object used to define a callback request and expected responses.

src/Microsoft.OpenApi/Models/Interfaces/IOpenApiExample.cs

@@ -7,7 +7,7 @@ namespace Microsoft.OpenApi.Models.Interfaces;
 /// Defines the base properties for the example object.
 /// This interface is provided for type assertions but should not be implemented by package consumers beyond automatic mocking.
 /// </summary>
-public interface IOpenApiExample : IOpenApiDescribedElement, IOpenApiSummarizedElement, IOpenApiSerializable, IOpenApiReadOnlyExtensible
+public interface IOpenApiExample : IOpenApiDescribedElement, IOpenApiSummarizedElement, IOpenApiSerializable, IOpenApiReadOnlyExtensible, IShallowCopyable<IOpenApiExample>
 {
     /// <summary>
     /// Embedded literal example. The value field and externalValue field are mutually

src/Microsoft.OpenApi/Models/Interfaces/IOpenApiHeader.cs

@@ -9,7 +9,7 @@ namespace Microsoft.OpenApi.Models.Interfaces;
 /// Defines the base properties for the headers object.
 /// This interface is provided for type assertions but should not be implemented by package consumers beyond automatic mocking.
 /// </summary>
-public interface IOpenApiHeader : IOpenApiDescribedElement, IOpenApiSerializable, IOpenApiReadOnlyExtensible
+public interface IOpenApiHeader : IOpenApiDescribedElement, IOpenApiSerializable, IOpenApiReadOnlyExtensible, IShallowCopyable<IOpenApiHeader>
 {
     /// <summary>
     /// Determines whether this header is mandatory.

src/Microsoft.OpenApi/Models/Interfaces/IOpenApiLink.cs

@@ -7,7 +7,7 @@ namespace Microsoft.OpenApi.Models.Interfaces;
 /// Defines the base properties for the link object.
 /// This interface is provided for type assertions but should not be implemented by package consumers beyond automatic mocking.
 /// </summary>
-public interface IOpenApiLink : IOpenApiDescribedElement, IOpenApiSerializable, IOpenApiReadOnlyExtensible
+public interface IOpenApiLink : IOpenApiDescribedElement, IOpenApiSerializable, IOpenApiReadOnlyExtensible, IShallowCopyable<IOpenApiLink>
 {
     /// <summary>
     /// A relative or absolute reference to an OAS operation.

src/Microsoft.OpenApi/Models/Interfaces/IOpenApiParameter.cs

@@ -8,7 +8,7 @@ namespace Microsoft.OpenApi.Models.Interfaces;
 /// Defines the base properties for the parameter object.
 /// This interface is provided for type assertions but should not be implemented by package consumers beyond automatic mocking.
 /// </summary>
-public interface IOpenApiParameter : IOpenApiDescribedElement, IOpenApiSerializable, IOpenApiReadOnlyExtensible
+public interface IOpenApiParameter : IOpenApiDescribedElement, IOpenApiSerializable, IOpenApiReadOnlyExtensible, IShallowCopyable<IOpenApiParameter>
 {
     /// <summary>
     /// REQUIRED. The name of the parameter. Parameter names are case sensitive.

src/Microsoft.OpenApi/Models/Interfaces/IOpenApiPathItem.cs

@@ -8,7 +8,7 @@ namespace Microsoft.OpenApi.Models.Interfaces;
 /// Defines the base properties for the path item object.
 /// This interface is provided for type assertions but should not be implemented by package consumers beyond automatic mocking.
 /// </summary>
-public interface IOpenApiPathItem : IOpenApiDescribedElement, IOpenApiSummarizedElement, IOpenApiSerializable, IOpenApiReadOnlyExtensible
+public interface IOpenApiPathItem : IOpenApiDescribedElement, IOpenApiSummarizedElement, IOpenApiSerializable, IOpenApiReadOnlyExtensible, IShallowCopyable<IOpenApiPathItem>
 {
     /// <summary>
     /// Gets the definition of operations on this path.

src/Microsoft.OpenApi/Models/Interfaces/IOpenApiRequestBody.cs

@@ -8,7 +8,7 @@ namespace Microsoft.OpenApi.Models.Interfaces;
 /// Defines the base properties for the request body object.
 /// This interface is provided for type assertions but should not be implemented by package consumers beyond automatic mocking.
 /// </summary>
-public interface IOpenApiRequestBody : IOpenApiDescribedElement, IOpenApiSerializable, IOpenApiReadOnlyExtensible
+public interface IOpenApiRequestBody : IOpenApiDescribedElement, IOpenApiSerializable, IOpenApiReadOnlyExtensible, IShallowCopyable<IOpenApiRequestBody>
 {
     /// <summary>
     /// Determines if the request body is required in the request. Defaults to false.

src/Microsoft.OpenApi/Models/Interfaces/IOpenApiResponse.cs

@@ -7,7 +7,7 @@ namespace Microsoft.OpenApi.Models.Interfaces;
 /// Defines the base properties for the response object.
 /// This interface is provided for type assertions but should not be implemented by package consumers beyond automatic mocking.
 /// </summary>
-public interface IOpenApiResponse : IOpenApiDescribedElement, IOpenApiSerializable, IOpenApiReadOnlyExtensible
+public interface IOpenApiResponse : IOpenApiDescribedElement, IOpenApiSerializable, IOpenApiReadOnlyExtensible, IShallowCopyable<IOpenApiResponse>
 {
     /// <summary>
     /// Maps a header name to its definition.