[njs] Fixed parsing of invalid for-in statement.

[Vadim Zhestikov via nginx-devel]

details:   https://hg.nginx.org/njs/rev/aa05db6d896f
branches:  
changeset: 2144:aa05db6d896f
user:      Vadim Zhestikov <v.zhesti...@f5.com>
date:      Thu Jun 01 09:39:25 2023 -0700
description:
Fixed parsing of invalid for-in statement.

The issue was introduced in: b9d18d4dd34e

diffstat:

 src/njs_parser.c         |  4 ++++
 src/test/njs_unit_test.c |  3 +++
 2 files changed, 7 insertions(+), 0 deletions(-)

diffs (27 lines):

diff -r ab54ef24feac -r aa05db6d896f src/njs_parser.c
--- a/src/njs_parser.c  Sun May 28 15:36:46 2023 +0100
+++ b/src/njs_parser.c  Thu Jun 01 09:39:25 2023 -0700
@@ -5496,6 +5496,10 @@ njs_parser_for_expression_map_reparse(nj
 {
     njs_str_t  *text;
 
+    if (parser->ret != NJS_OK && parser->node != NULL) {
+        return njs_parser_failed(parser);
+    }
+
     if (parser->node == NULL) {
         njs_lexer_in_fail_set(parser->lexer, 1);
 
diff -r ab54ef24feac -r aa05db6d896f src/test/njs_unit_test.c
--- a/src/test/njs_unit_test.c  Sun May 28 15:36:46 2023 +0100
+++ b/src/test/njs_unit_test.c  Thu Jun 01 09:39:25 2023 -0700
@@ -2969,6 +2969,9 @@ static njs_unit_test_t  njs_test[] =
     { njs_str("for (a(b * in d) ;"),
       njs_str("SyntaxError: Unexpected token \"in\" in 1") },
 
+    { njs_str("for(c=let c"),
+      njs_str("SyntaxError: Unexpected token \"let\" in 1") },
+
     /* switch. */
 
     { njs_str("switch"),
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