From: Valentin Bartenev <vbart@nginx.com>
Date: Thu, 2 May 2019 18:21:16 +0000 (+0300)
Subject: Rejection of multiple "var" declarations in the for-in statement.
X-Git-Tag: 0.3.2~32
X-Git-Url: http://www.kaiwu.me/postgresql/commit/?a=commitdiff_plain;h=62f0d443e6d073a6be135a0d17597ade3360864f;p=njs.git

Rejection of multiple "var" declarations in the for-in statement.
---

diff --git a/njs/njs_parser.c b/njs/njs_parser.c
index c32f0e65..4e1ac418 100644
--- a/njs/njs_parser.c
+++ b/njs/njs_parser.c
@@ -1078,8 +1078,12 @@ njs_parser_var_statement(njs_vm_t *vm, njs_parser_t *parser, njs_token_t parent,
             return token;
         }
 
-        if (var_in && token == NJS_TOKEN_IN) {
-            return njs_parser_var_in_statement(vm, parser, name);
+        if (var_in) {
+            if (token == NJS_TOKEN_IN) {
+                return njs_parser_var_in_statement(vm, parser, name);
+            }
+
+            var_in = 0;
         }
 
         expr = NULL;
diff --git a/njs/test/njs_unit_test.c b/njs/test/njs_unit_test.c
index 0bd45f01..15578bfe 100644
--- a/njs/test/njs_unit_test.c
+++ b/njs/test/njs_unit_test.c
@@ -2265,6 +2265,9 @@ static njs_unit_test_t  njs_test[] =
     { nxt_string("for (null in undefined);"),
       nxt_string("ReferenceError: Invalid left-hand side \"null\" in for-in statement in 1") },
 
+    { nxt_string("for (var a, b in []);"),
+      nxt_string("SyntaxError: Unexpected token \"in\" in 1") },
+
     { nxt_string("var s = ''; for (var p in [1,2]) {s += p}; s"),
       nxt_string("01") },