Make TagHelperDescriptor and friends IEquatable

src/Microsoft.AspNetCore.Razor.Evolution/BoundAttributeDescriptor.cs

@@ -1,6 +1,7 @@
 // Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
+using System;
 using System.Collections.Generic;
 using System.Linq;
 
@@ -9,7 +10,7 @@ namespace Microsoft.AspNetCore.Razor.Evolution
     /// <summary>
     /// A metadata class describing a tag helper attribute.
     /// </summary>
-    public abstract class BoundAttributeDescriptor
+    public abstract class BoundAttributeDescriptor : IEquatable<BoundAttributeDescriptor>
     {
         protected BoundAttributeDescriptor(string kind)
         {
@@ -49,5 +50,20 @@ namespace Microsoft.AspNetCore.Razor.Evolution
                 return anyErrors;
             }
         }
+
+        public bool Equals(BoundAttributeDescriptor other)
+        {
+            return BoundAttributeDescriptorComparer.Default.Equals(this, other);
+        }
+
+        public override bool Equals(object obj)
+        {
+            return Equals(obj as BoundAttributeDescriptor);
+        }
+
+        public override int GetHashCode()
+        {
+            return BoundAttributeDescriptorComparer.Default.GetHashCode(this);
+        }
     }
 }

src/Microsoft.AspNetCore.Razor.Evolution/TagHelperDescriptor.cs

@@ -1,12 +1,13 @@
 // Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
+using System;
 using System.Collections.Generic;
 using System.Linq;
 
 namespace Microsoft.AspNetCore.Razor.Evolution
 {
-    public abstract class TagHelperDescriptor
+    public abstract class TagHelperDescriptor : IEquatable<TagHelperDescriptor>
     {
         private IEnumerable<RazorDiagnostic> _allDiagnostics;
 
@@ -60,5 +61,20 @@ namespace Microsoft.AspNetCore.Razor.Evolution
 
             return _allDiagnostics;
         }
+
+        public bool Equals(TagHelperDescriptor other)
+        {
+            return TagHelperDescriptorComparer.Default.Equals(this, other);
+        }
+
+        public override bool Equals(object obj)
+        {
+            return Equals(obj as TagHelperDescriptor);
+        }
+
+        public override int GetHashCode()
+        {
+            return TagHelperDescriptorComparer.Default.GetHashCode(this);
+        }
     }
 }

src/Microsoft.AspNetCore.Razor.Evolution/TagHelperDescriptorComparer.cs

@@ -6,7 +6,7 @@ using System.Collections.Generic;
 using System.Linq;
 using Microsoft.Extensions.Internal;
 
-namespace Microsoft.AspNetCore.Razor.Evolution.Legacy
+namespace Microsoft.AspNetCore.Razor.Evolution
 {
     internal class TagHelperDescriptorComparer : IEqualityComparer<TagHelperDescriptor>
     {

src/Microsoft.AspNetCore.Razor.Evolution/TagMatchingRule.cs

@@ -1,12 +1,13 @@
 // Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
+using System;
 using System.Collections.Generic;
 using System.Linq;
 
 namespace Microsoft.AspNetCore.Razor.Evolution
 {
-    public abstract class TagMatchingRule
+    public abstract class TagMatchingRule : IEquatable<TagMatchingRule>
     {
         private IEnumerable<RazorDiagnostic> _allDiagnostics;
 
@@ -42,5 +43,20 @@ namespace Microsoft.AspNetCore.Razor.Evolution
 
             return _allDiagnostics;
         }
+
+        public bool Equals(TagMatchingRule other)
+        {
+            return TagMatchingRuleComparer.Default.Equals(this, other);
+        }
+
+        public override bool Equals(object obj)
+        {
+            return Equals(obj as TagMatchingRule);
+        }
+
+        public override int GetHashCode()
+        {
+            return TagMatchingRuleComparer.Default.GetHashCode(this);
+        }
     }
 }