From 9621c13cb21ae5801447e3d8fc2dd8502e6aa1c2 Mon Sep 17 00:00:00 2001
From: jiftle <lixugood@126.com>
Date: Sun, 18 Nov 2018 00:10:34 +0800
Subject: [PATCH] clr.FindAssembly() method,throw exception when file not
 found.

---
 src/runtime/moduleobject.cs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/runtime/moduleobject.cs b/src/runtime/moduleobject.cs
index 8af722d29..f471520c2 100644
--- a/src/runtime/moduleobject.cs
+++ b/src/runtime/moduleobject.cs
@@ -451,7 +451,12 @@ public static Type GetClrType(Type type)
         public static string FindAssembly(string name)
         {
             AssemblyManager.UpdatePath();
-            return AssemblyManager.FindAssembly(name);
+            string assemblyName = AssemblyManager.FindAssembly(name);
+            if (assemblyName == null)
+            {
+                throw new FileNotFoundException($"Unable to find assembly '{name}' dll or exe.");
+            }
+            return assemblyName;
         }
 
         [ModuleFunction]