[njs] Removed unnecessary NULL checks introduced in 86f55a7dc4a4.

[Alexander Borisov]

details:   https://hg.nginx.org/njs/rev/c37e682982b1
branches:  
changeset: 1410:c37e682982b1
user:      Alexander Borisov <alexander.borisov at nginx.com>
date:      Mon Jun 01 18:09:28 2020 +0300
description:
Removed unnecessary NULL checks introduced in 86f55a7dc4a4.

Found by Clang static analyzer.

diffstat:

 src/njs_parser.c         |  20 +++++++-------------
 src/test/njs_unit_test.c |   3 +--
 2 files changed, 8 insertions(+), 15 deletions(-)

diffs (50 lines):

diff -r c9f07d5eef98 -r c37e682982b1 src/njs_parser.c
--- a/src/njs_parser.c	Mon Jun 01 18:09:27 2020 +0300
+++ b/src/njs_parser.c	Mon Jun 01 18:09:28 2020 +0300
@@ -1929,7 +1929,7 @@ njs_parser_property_definition_after(njs
 
     proto_init = 0;
 
-    if (property != NULL && property->index != NJS_TOKEN_OPEN_BRACKET
+    if (property->index != NJS_TOKEN_OPEN_BRACKET
         && njs_is_string(&property->u.value))
     {
         njs_string_get(&property->u.value, &name);
@@ -3891,18 +3891,12 @@ njs_parser_coalesce_expression(njs_parse
         return njs_parser_stack_pop(parser);
     }
 
-    if (node != NULL) {
-        type = node->token_type;
-
-        if (parser->lexer->prev_type != NJS_TOKEN_CLOSE_PARENTHESIS
-            && (type == NJS_TOKEN_LOGICAL_OR || type == NJS_TOKEN_LOGICAL_AND))
-        {
-            njs_parser_syntax_error(parser, "Either \"??\" or \"%s\" "
-                                    "expression must be parenthesized",
-                                    (type == NJS_TOKEN_LOGICAL_OR) ? "||"
-                                                                   : "&&");
-            return NJS_DONE;
-        }
+    type = node->token_type;
+
+    if (parser->lexer->prev_type != NJS_TOKEN_CLOSE_PARENTHESIS
+        && (type == NJS_TOKEN_LOGICAL_OR || type == NJS_TOKEN_LOGICAL_AND))
+    {
+        return njs_parser_failed(parser);
     }
 
     njs_lexer_consume_token(parser->lexer, 1);
diff -r c9f07d5eef98 -r c37e682982b1 src/test/njs_unit_test.c
--- a/src/test/njs_unit_test.c	Mon Jun 01 18:09:27 2020 +0300
+++ b/src/test/njs_unit_test.c	Mon Jun 01 18:09:28 2020 +0300
@@ -1344,8 +1344,7 @@ static njs_unit_test_t  njs_test[] =
       njs_str("false") },
 
     { njs_str("1 && 1 ?? true"),
-      njs_str("SyntaxError: Either \"??\" or \"&&\" expression "
-              "must be parenthesized in 1") },
+      njs_str("SyntaxError: Unexpected token \"??\" in 1") },
 
     { njs_str("null ?? 0 || 1"),
       njs_str("SyntaxError: Unexpected token \"||\" in 1") },