From ef39f886b6f34d8051db1de49686ad662d0212d2 Mon Sep 17 00:00:00 2001
From: William D Cossey <wdcossey@github.com>
Date: Tue, 20 Apr 2021 12:48:20 +0100
Subject: [PATCH] Only include `Errors` in exception message.

---
 RazorEngineCore/RazorEngine.cs                     |  6 ++----
 RazorEngineCore/RazorEngineCompilationException.cs | 10 +++++-----
 2 files changed, 7 insertions(+), 9 deletions(-)

diff --git a/RazorEngineCore/RazorEngine.cs b/RazorEngineCore/RazorEngine.cs
index 0bdcf3d..6d83cc6 100644
--- a/RazorEngineCore/RazorEngine.cs
+++ b/RazorEngineCore/RazorEngine.cs
@@ -108,11 +108,9 @@ private MemoryStream CreateAndCompileToStream(string templateSource, RazorEngine
 
             if (!emitResult.Success)
             {
-                List<Diagnostic> errors = emitResult.Diagnostics.ToList();
-
-                RazorEngineCompilationException exception = new RazorEngineCompilationException($"Unable to compile template: \n{string.Join("\n", errors)}")
+                RazorEngineCompilationException exception = new RazorEngineCompilationException()
                 {
-                    Errors = errors,
+                    Errors = emitResult.Diagnostics.ToList(),
                     GeneratedCode = razorCSharpDocument.GeneratedCode
                 };
 
diff --git a/RazorEngineCore/RazorEngineCompilationException.cs b/RazorEngineCore/RazorEngineCompilationException.cs
index 4254f03..b53f9be 100644
--- a/RazorEngineCore/RazorEngineCompilationException.cs
+++ b/RazorEngineCore/RazorEngineCompilationException.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using System.Runtime.Serialization;
 using Microsoft.CodeAnalysis;
 
@@ -15,15 +16,14 @@ protected RazorEngineCompilationException(SerializationInfo info, StreamingConte
         {
         }
 
-        public RazorEngineCompilationException(string message) : base(message)
-        {
-        }
-
-        public RazorEngineCompilationException(string message, Exception innerException) : base(message, innerException)
+        public RazorEngineCompilationException(Exception innerException) : base(null, innerException)
         {
         }
 
         public List<Diagnostic> Errors { get; set; }
+        
         public string GeneratedCode { get; set; }
+
+        public override string Message => $"Unable to compile template: {string.Join("\n", Errors.Where(w => w.IsWarningAsError || w.Severity == DiagnosticSeverity.Error))}";
     }
 }
\ No newline at end of file