Use ZEND_FCI_INITIALIZED() macro to check if an FCI is initialized

Author: Girgias

Zend/zend_execute_API.c

@@ -819,7 +819,7 @@ zend_result zend_call_function(zend_fcall_info *fci, zend_fcall_info_cache *fci_
 		return SUCCESS; /* we would result in an unstable executor otherwise */
 	}
 
-	ZEND_ASSERT(fci->size == sizeof(zend_fcall_info));
+	ZEND_ASSERT(ZEND_FCI_INITIALIZED(*fci));
 
 	if (!fci_cache || !fci_cache->function_handler) {
 		char *error = NULL;

ext/pdo/pdo_stmt.c

@@ -684,8 +684,7 @@ static bool do_fetch_func_prepare(pdo_stmt_t *stmt) /* {{{ */
 
 static void do_fetch_opt_finish(pdo_stmt_t *stmt, int free_ctor_agrs) /* {{{ */
 {
-	/* fci.size is used to check if it is valid */
-	if (stmt->fetch.cls.fci.size && stmt->fetch.cls.fci.params) {
+	if (ZEND_FCI_INITIALIZED(stmt->fetch.cls.fci) && stmt->fetch.cls.fci.params) {
 		if (!Z_ISUNDEF(stmt->fetch.cls.ctor_args)) {
 			/* Added to free constructor arguments */
 			zend_fcall_info_args_clear(&stmt->fetch.cls.fci, 1);
@@ -695,6 +694,7 @@ static void do_fetch_opt_finish(pdo_stmt_t *stmt, int free_ctor_agrs) /* {{{ */
 		stmt->fetch.cls.fci.params = NULL;
 	}
 
+	/* Invalidate FCI */
 	stmt->fetch.cls.fci.size = 0;
 	if (!Z_ISUNDEF(stmt->fetch.cls.ctor_args) && free_ctor_agrs) {
 		zval_ptr_dtor(&stmt->fetch.cls.ctor_args);
@@ -833,7 +833,7 @@ static bool do_fetch(pdo_stmt_t *stmt, zval *return_value, enum pdo_fetch_type h
 				if (UNEXPECTED(object_init_ex(return_value, ce) != SUCCESS)) {
 					return 0;
 				}
-				if (!stmt->fetch.cls.fci.size) {
+				if (!ZEND_FCI_INITIALIZED(stmt->fetch.cls.fci)) {
 					if (!do_fetch_class_prepare(stmt)) {
 						zval_ptr_dtor(return_value);
 						return 0;
@@ -879,7 +879,7 @@ static bool do_fetch(pdo_stmt_t *stmt, zval *return_value, enum pdo_fetch_type h
 				pdo_raise_impl_error(stmt->dbh, stmt, "HY000", "No fetch function specified");
 				return 0;
 			}
-			if (!stmt->fetch.func.fci.size) {
+			if (!ZEND_FCI_INITIALIZED(stmt->fetch.func.fci)) {
 				if (!do_fetch_func_prepare(stmt))
 				{
 					return 0;