java-topology/defects/php/patch/0001-named-arg-compile-hash.patch
russell@unturf.com 9934133dcf whitepaper: 312 sites / 151 ecosystems — wave2+3 defect tables and PDF rebuild
Add 88 new defect entries to HIGH and MEDIUM tables:
  HIGH: mysql-0001/0002, mariadb-0001, redis-0001/0002, valkey-0001/0002, openvpn-0001,
        vlc-0001, prometheus-0001, otel-collector-0001, cockroachdb-0001..0004,
        tidb-0001..0008, kubernetes-0001/0002, go-0001, kotlin-0002, scala-0001,
        allegro5-0001, sdl2-0001, grafana-0001, clickhouse-0001, duckdb-0001,
        mongodb-0001, envoy-0001, istio-0001, cilium-0001, linkerd2-0001,
        linux-0001/0002/0003, tor-0002/0003, curl-0001, julia-0001, lua-0001,
        perl5-0001, nats-0001, spring-0003/0004, tomcat-0001, onos-0002, odl-0002

  MEDIUM: helm-0001, mariadb-0002, openssl-0001/0002, memcached-0001,
          cassandra-0001..0004, flink-0001, storm-0001/0002, zookeeper-0001..0003,
          pip-0001, gradle-0001, nginx-0001, haproxy-0001, caddy-0001, varnish-0001,
          ffmpeg-0001, gstreamer-0001, raylib-0001, love2d-0001, php-0001/0002,
          r-source-0001, cpython-0002, ruby-0001, rabbitmq-0003/0004, activemq-0001,
          ovs-0001, onos-0003, odl-0002, jetty-0001

PDF: 976K
2026-03-27 15:23:43 -04:00

38 lines
1.3 KiB
Diff

diff --git a/Zend/zend_compile.c b/Zend/zend_compile.c
--- a/Zend/zend_compile.c
+++ b/Zend/zend_compile.c
@@ -3753,13 +3753,30 @@ static uint32_t zend_get_arg_num(const zend_function *fn, const zend_string *ar
{
- // TODO: Caching?
- for (uint32_t i = 0; i < fn->common.num_args; i++) {
- zend_arg_info *arg_info = &fn->op_array.arg_info[i];
- if (zend_string_equals(arg_info->name, arg_name)) {
- return i + 1;
- }
- }
-
- /* Either an invalid argument name, or collected into a variadic argument. */
- return (uint32_t) -1;
+ /*
+ * Build a HashTable from arg_name -> (1-based position) on first call,
+ * cache it on the zend_op_array. Subsequent calls are O(1) lookups.
+ * Replaces O(M) linear scan — was O(N*M) for N named args, M params.
+ */
+ if (!fn->op_array.arg_name_map) {
+ HashTable *ht = emalloc(sizeof(HashTable));
+ zend_hash_init(ht, fn->common.num_args, NULL, NULL, 0);
+ for (uint32_t i = 0; i < fn->common.num_args; i++) {
+ zend_arg_info *arg_info = &fn->op_array.arg_info[i];
+ zval pos;
+ ZVAL_LONG(&pos, i + 1);
+ zend_hash_add(ht, arg_info->name, &pos);
+ }
+ ((zend_op_array *)&fn->op_array)->arg_name_map = ht;
+ }
+
+ zval *zv = zend_hash_find(fn->op_array.arg_name_map, arg_name);
+ if (zv) {
+ return (uint32_t)Z_LVAL_P(zv);
+ }
+ return (uint32_t) -1;
}