Now during the rethrowing of exceptions are preserved the full call stack trace

Author: Taritsyn

NuGet/MsieJavaScriptEngine.nuspec

@@ -12,12 +12,7 @@
 		<requireLicenseAcceptance>false</requireLicenseAcceptance>
 		<description>This library is a .NET wrapper for working with the JavaScript engines of Internet Explorer and Edge (JsRT versions of Chakra, ActiveScript version of Chakra and Classic JavaScript Engine). Project was based on the code of SassAndCoffee.JavaScript (http://github.com/paulcbetts/SassAndCoffee), Chakra Sample Hosts (http://github.com/panopticoncentral/chakra-host) and jsrt-dotnet (http://github.com/robpaveza/jsrt-dotnet).</description>
 		<summary>This library is a .NET wrapper for working with the JavaScript engines of Internet Explorer and Edge (JsRT versions of Chakra, ActiveScript version of Chakra and Classic JavaScript Engine).</summary>
-		<releaseNotes>1. Switched to Apache license;
-2. In JsRT modes fixed a problems in calculation of error locations;
-3. An attempt was made to prevent occurrence of the access violation exception;
-4. Now the original exception is added to instance of the `JsRuntimeException` class as an inner exception;
-5. An attempt was made to prevent a blocking of finalizer's thread;
-6. Added support of identifier names compliant with ECMAScript 5.</releaseNotes>
+		<releaseNotes>Now during the rethrowing of exceptions are preserved the full call stack trace.</releaseNotes>
 		<copyright>Copyright (c) 2012-2017 Andrey Taritsyn - http://www.taritsyn.ru</copyright>
 		<language>en-US</language>
 		<tags>JavaScript ECMAScript MSIE IE Edge Chakra</tags>

NuGet/readme.txt

@@ -21,13 +21,7 @@
    =============
    RELEASE NOTES
    =============
-   1. Switched to Apache license;
-   2. In JsRT modes fixed a problems in calculation of error locations;
-   3. An attempt was made to prevent occurrence of the access violation exception;
-   4. Now the original exception is added to instance of the `JsRuntimeException`
-      class as an inner exception;
-   5. An attempt was made to prevent a blocking of finalizer's thread;
-   6. Added support of identifier names compliant with ECMAScript 5.
+   Now during the rethrowing of exceptions are preserved the full call stack trace.
 
    ============
    PROJECT SITE

src/MsieJavaScriptEngine.Net4/MsieJavaScriptEngine.Net40.csproj

@@ -511,6 +511,7 @@
       <Link>Utilities\Utils.cs</Link>
     </Compile>
     <Compile Include="Utilities\DelegateExtensions.cs" />
+    <Compile Include="Utilities\ExceptionExtensions.cs" />
     <Compile Include="Utilities\TypeInfo.cs" />
   </ItemGroup>
   <ItemGroup>

src/MsieJavaScriptEngine.Net4/Utilities/ExceptionExtensions.cs

@@ -0,0 +1,29 @@
+#if NET40
+using System;
+using System.Reflection;
+
+namespace MsieJavaScriptEngine.Utilities
+{
+	/// <summary>
+	/// Exception extensions
+	/// </summary>
+	public static class ExceptionExtensions
+	{
+		/// <summary>
+		/// Preserves a stack trace of exception
+		/// </summary>
+		/// <param name="source">The exception</param>
+		public static void PreserveStackTrace(this Exception source)
+		{
+			if (source == null)
+			{
+				throw new ArgumentNullException("source");
+			}
+
+			MethodInfo preserveStackTraceMethodInfo = typeof(Exception).GetMethod("InternalPreserveStackTrace",
+				BindingFlags.Instance | BindingFlags.NonPublic);
+			preserveStackTraceMethodInfo.Invoke(source, null);
+		}
+	}
+}
+#endif

src/MsieJavaScriptEngine/ScriptDispatcher.cs

@@ -1,5 +1,8 @@
 using System;
 using System.Collections.Generic;
+#if NETSTANDARD1_3 || NET45
+using System.Runtime.ExceptionServices;
+#endif
 using System.Threading;
 
 using MsieJavaScriptEngine.Utilities;
@@ -151,9 +154,17 @@ private object InnnerInvoke(Func<object> del)
 				waitHandle.WaitOne();
 			}
 
-			if (task.Exception != null)
+			Exception exception = task.Exception;
+			if (exception != null)
 			{
-				throw task.Exception;
+#if NETSTANDARD1_3 || NET45
+				ExceptionDispatchInfo.Capture(exception).Throw();
+#elif NET40
+				exception.PreserveStackTrace();
+				throw exception;
+#else
+#error No implementation for this target
+#endif
 			}
 
 			return task.Result;