From 6747e90b0501dd097f0252b6d44e4838bb915fe2 Mon Sep 17 00:00:00 2001
From: Ajay Bhargav Baaskaran <ajaybhargavb@gmail.com>
Date: Mon, 11 Mar 2019 10:31:37 -0700
Subject: [PATCH] Preserve diagnostics when rewriting Red nodes
 (dotnet/aspnetcore-tooling#319)

\n\nCommit migrated from https://github.com/dotnet/aspnetcore-tooling/commit/276532454ec16b002be2c664dbf2f4f260f42a2a
---
 src/Razor/tools/RazorSyntaxGenerator/SourceWriter.cs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/Razor/tools/RazorSyntaxGenerator/SourceWriter.cs b/src/Razor/tools/RazorSyntaxGenerator/SourceWriter.cs
index 71081f14fe..5a9a7112bb 100644
--- a/src/Razor/tools/RazorSyntaxGenerator/SourceWriter.cs
+++ b/src/Razor/tools/RazorSyntaxGenerator/SourceWriter.cs
@@ -1364,6 +1364,9 @@ namespace RazorSyntaxGenerator
                     Write(CamelCase(field.Name));
                 }
                 WriteLine(");");
+                WriteLine("            var diagnostics = GetDiagnostics();");
+                WriteLine("            if (diagnostics != null && diagnostics.Length > 0)");
+                WriteLine("               newNode = newNode.WithDiagnostics(diagnostics);");
                 WriteLine("            var annotations = GetAnnotations();");
                 WriteLine("            if (annotations != null && annotations.Length > 0)");
                 WriteLine("               return newNode.WithAnnotations(annotations);");