From abe12b0631e69288e3df631e1898e58007cb292e Mon Sep 17 00:00:00 2001
From: Leonardo de Moura <leonardo@microsoft.com>
Date: Mon, 30 Jun 2014 18:04:18 -0700
Subject: [PATCH] fix(shell/lean): only save .olean file if there are no errors

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
---
 src/shell/lean.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/shell/lean.cpp b/src/shell/lean.cpp
index 6feaa559b..55c6eb8b8 100644
--- a/src/shell/lean.cpp
+++ b/src/shell/lean.cpp
@@ -235,7 +235,7 @@ int main(int argc, char ** argv) {
             lean::interactive in(env, ios, num_threads);
             in(std::cin, "[stdin]");
         }
-        if (export_objects) {
+        if (export_objects && ok) {
             std::ofstream out(output, std::ofstream::binary);
             export_module(out, env);
         }