From c275a5efe49cd6f521f3ed4cf0c83b30372a5e61 Mon Sep 17 00:00:00 2001
From: Dmitry Volyntsev <xeioex@nginx.com>
Date: Thu, 17 Jan 2019 16:11:52 +0300
Subject: [PATCH] Fixed try_break instruction.

---
 njs/njs_vm.c             | 5 ++++-
 njs/test/njs_unit_test.c | 3 +++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/njs/njs_vm.c b/njs/njs_vm.c
index d182e707..fce24a97 100644
--- a/njs/njs_vm.c
+++ b/njs/njs_vm.c
@@ -2376,7 +2376,10 @@ nxt_noinline njs_ret_t
 njs_vmcode_try_break(njs_vm_t *vm, njs_value_t *exit_value,
     njs_value_t *offset)
 {
-    exit_value->data.u.number = 1;
+    /* exit_value can contain valid value set by vmcode_try_return. */
+    if (!njs_is_valid(exit_value)) {
+        exit_value->data.u.number = 1;
+    }
 
     return (njs_ret_t) offset;
 }
diff --git a/njs/test/njs_unit_test.c b/njs/test/njs_unit_test.c
index d76e85dc..2a456c9d 100644
--- a/njs/test/njs_unit_test.c
+++ b/njs/test/njs_unit_test.c
@@ -6902,6 +6902,9 @@ static njs_unit_test_t  njs_test[] =
                  "})(function () {throw 'a'}, 'v')"),
       nxt_string("v") },
 
+    { nxt_string("(function() { try { return ['a'];} finally {} } )()"),
+      nxt_string("a") },
+
     { nxt_string("var o = { valueOf: function() { return '3' } }; --o"),
       nxt_string("2") },
 
-- 
2.47.3