Zend: make zend_copy_parameters_array() private (#20265)

And slightly refactor implementation.

Author: Girgias

UPGRADING.INTERNALS

@@ -34,6 +34,7 @@ PHP 8.6 INTERNALS UPGRADE NOTES
     printf family.
   . The zval_dtor() alias of zval_ptr_dtor_nogc() has been removed.
     Call zval_ptr_dtor_nogc() directly instead.
+  . The internal zend_copy_parameters_array() function is no longer exposed.
 
 ========================
 2. Build system changes

Zend/zend_API.c

@@ -76,28 +76,6 @@ ZEND_API zend_result zend_get_parameters_array_ex(uint32_t param_count, zval *ar
 }
 /* }}} */
 
-ZEND_API zend_result zend_copy_parameters_array(uint32_t param_count, zval *argument_array) /* {{{ */
-{
-	zval *param_ptr;
-	uint32_t arg_count;
-
-	param_ptr = ZEND_CALL_ARG(EG(current_execute_data), 1);
-	arg_count = ZEND_CALL_NUM_ARGS(EG(current_execute_data));
-
-	if (param_count>arg_count) {
-		return FAILURE;
-	}
-
-	while (param_count-->0) {
-		Z_TRY_ADDREF_P(param_ptr);
-		zend_hash_next_index_insert_new(Z_ARRVAL_P(argument_array), param_ptr);
-		param_ptr++;
-	}
-
-	return SUCCESS;
-}
-/* }}} */
-
 ZEND_API ZEND_COLD void zend_wrong_param_count(void) /* {{{ */
 {
 	const char *space;

Zend/zend_API.h

@@ -347,9 +347,6 @@ ZEND_API void zend_set_dl_use_deepbind(bool use_deepbind);
 
 ZEND_API zend_result zend_get_parameters_array_ex(uint32_t param_count, zval *argument_array);
 
-/* internal function to efficiently copy parameters when executing __call() */
-ZEND_API zend_result zend_copy_parameters_array(uint32_t param_count, zval *argument_array);
-
 #define zend_get_parameters_array(ht, param_count, argument_array) \
 	zend_get_parameters_array_ex(param_count, argument_array)
 #define zend_parse_parameters_none() \

Zend/zend_closures.c

@@ -287,6 +287,19 @@ ZEND_METHOD(Closure, bindTo)
 	do_closure_bind(return_value, ZEND_THIS, newthis, scope_obj, scope_str);
 }
 
+static void zend_copy_parameters_array(const uint32_t param_count, HashTable *argument_array) /* {{{ */
+{
+	zval *param_ptr = ZEND_CALL_ARG(EG(current_execute_data), 1);
+
+	ZEND_ASSERT(param_count <= ZEND_CALL_NUM_ARGS(EG(current_execute_data)));
+
+	for (uint32_t i = 0; i < param_count; i++) {
+		Z_TRY_ADDREF_P(param_ptr);
+		zend_hash_next_index_insert_new(argument_array, param_ptr);
+		param_ptr++;
+	}
+}
+
 static ZEND_NAMED_FUNCTION(zend_closure_call_magic) /* {{{ */ {
 	zend_fcall_info fci;
 	zend_fcall_info_cache fcc;
@@ -310,14 +323,14 @@ static ZEND_NAMED_FUNCTION(zend_closure_call_magic) /* {{{ */ {
 		array_init_size(&fci.params[1], ZEND_NUM_ARGS() + zend_hash_num_elements(EX(extra_named_params)));
 		/* Avoid conversion from packed to mixed later. */
 		zend_hash_real_init_mixed(Z_ARRVAL(fci.params[1]));
-		zend_copy_parameters_array(ZEND_NUM_ARGS(), &fci.params[1]);
+		zend_copy_parameters_array(ZEND_NUM_ARGS(), Z_ARRVAL(fci.params[1]));
 		ZEND_HASH_MAP_FOREACH_STR_KEY_VAL(EX(extra_named_params), name, named_param_zval) {
 			Z_TRY_ADDREF_P(named_param_zval);
 			zend_hash_add_new(Z_ARRVAL(fci.params[1]), name, named_param_zval);
 		} ZEND_HASH_FOREACH_END();
 	} else if (ZEND_NUM_ARGS()) {
 		array_init_size(&fci.params[1], ZEND_NUM_ARGS());
-		zend_copy_parameters_array(ZEND_NUM_ARGS(), &fci.params[1]);
+		zend_copy_parameters_array(ZEND_NUM_ARGS(), Z_ARRVAL(fci.params[1]));
 	} else {
 		ZVAL_EMPTY_ARRAY(&fci.params[1]);
 	}