From 74d56ce02435a80dfb4cd59ec666ae82d9bdca6c Mon Sep 17 00:00:00 2001
From: Ryan Nowak <nowakra@gmail.com>
Date: Tue, 1 Jan 2019 19:51:29 -0800
Subject: [PATCH] Ignore markup comments in components

Fixes: aspnet/AspNetCoredotnet/aspnetcore-tooling#6184

This gives us parity with the current behavior. Since comments aren't
meaningful in a component/render-tree context, we ignore everything
inside of them for codegen/lowering.
\n\nCommit migrated from https://github.com/dotnet/aspnetcore-tooling/commit/7250dd262492e675661f011d5677a7d97182d52c
---
 .../src/DefaultRazorIntermediateNodeLoweringPhase.cs         | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/src/DefaultRazorIntermediateNodeLoweringPhase.cs b/src/Razor/Microsoft.AspNetCore.Razor.Language/src/DefaultRazorIntermediateNodeLoweringPhase.cs
index 84f4d12f8f..290b9d3bd9 100644
--- a/src/Razor/Microsoft.AspNetCore.Razor.Language/src/DefaultRazorIntermediateNodeLoweringPhase.cs
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/src/DefaultRazorIntermediateNodeLoweringPhase.cs
@@ -1331,6 +1331,11 @@ namespace Microsoft.AspNetCore.Razor.Language
                 });
             }
 
+            public override void VisitMarkupCommentBlock(MarkupCommentBlockSyntax node)
+            {
+                // Comments are ignored by components. We skip over anything that appears inside.
+            }
+
             public override void VisitCSharpTemplateBlock(CSharpTemplateBlockSyntax node)
             {
                 var templateNode = new TemplateIntermediateNode();