From 99bbda28ee728aea14636010721e7a4acc55bb4a Mon Sep 17 00:00:00 2001
From: Yuriy Glukhov <yuriy.glukhov@gmail.com>
Date: Sun, 4 Sep 2016 22:57:10 +0300
Subject: [PATCH] Store stack trace in exception

---
 lib/system/jssys.nim | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/system/jssys.nim b/lib/system/jssys.nim
index 31d283cd77..39ce1183b3 100644
--- a/lib/system/jssys.nim
+++ b/lib/system/jssys.nim
@@ -109,6 +109,7 @@ proc rawWriteStackTrace(): string =
     result = "No stack traceback available\n"
 
 proc getStackTrace*(): string = rawWriteStackTrace()
+proc getStackTrace*(e: ref Exception): string = e.trace
 
 proc unhandledException(e: ref Exception) {.
     compilerproc, asmNoStackFrame.} =
@@ -142,6 +143,8 @@ proc raiseException(e: ref Exception, ename: cstring) {.
   when defined(nimphp):
     asm """throw new Exception($`e`["message"]);"""
   else:
+    when NimStackTrace:
+      e.trace = rawWriteStackTrace()
     asm "throw `e`;"
 
 proc reraiseException() {.compilerproc, asmNoStackFrame.} =