From: Nikita Popov <nikita.ppv@gmail.com>
Date: Tue, 1 Sep 2020 14:19:34 +0000 (+0200)
Subject: Assert there are children in zend_generator_get_child()
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=c6ea0e90c29bf747b5c4618831924da10bd6d601;p=php

Assert there are children in zend_generator_get_child()
---

diff --git a/Zend/zend_generators.c b/Zend/zend_generators.c
index c890669a70..5e7492b7bc 100644
--- a/Zend/zend_generators.c
+++ b/Zend/zend_generators.c
@@ -435,9 +435,8 @@ static void zend_generator_throw_exception(zend_generator *generator, zval *exce
 
 static zend_generator *zend_generator_get_child(zend_generator_node *node, zend_generator *leaf)
 {
-	if (node->children == 0) {
-		return NULL;
-	} else if (node->children == 1) {
+	ZEND_ASSERT(node->children != 0);
+	if (node->children == 1) {
 		return node->child.single.child;
 	} else {
 		return zend_hash_index_find_ptr(node->child.ht, (zend_ulong) leaf);