Mark TokenData as a 'readonly struct'

dotnet · Oct 27, 2018 · 00d164f · 00d164f
1 parent 72e2a2a
commit 00d164f
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/Workspaces/Core/Portable/Formatting/Engine/TokenData.cs b/src/Workspaces/Core/Portable/Formatting/Engine/TokenData.cs
@@ -17,9 +17,9 @@ namespace Microsoft.CodeAnalysis.Formatting
     /// this object is supposed to be live very short but created a lot of time. that is why it is struct. 
     /// (same reason why SyntaxToken is struct - to reduce heap allocation)
     /// </summary>
-    internal struct TokenData : IEqualityComparer<TokenData>, IEquatable<TokenData>, IComparable<TokenData>, IComparer<TokenData>
+    internal readonly struct TokenData : IEqualityComparer<TokenData>, IEquatable<TokenData>, IComparable<TokenData>, IComparer<TokenData>
     {
-        public TokenData(TokenStream tokenStream, int indexInStream, SyntaxToken token) : this()
+        public TokenData(TokenStream tokenStream, int indexInStream, SyntaxToken token)
         {
             Contract.ThrowIfNull(tokenStream);
             Contract.ThrowIfFalse((indexInStream == -1) || (0 <= indexInStream && indexInStream < tokenStream.TokenCount));