as_util.h

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/* 
 * Copyright 2008-2022 Aerospike, Inc.
 *
 * Portions may be licensed to Aerospike, Inc. under one or more contributor
 * license agreements.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
 
#pragma once
 
#include <stddef.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
/******************************************************************************
 * MACROS
 ******************************************************************************/
 
/**
 * Calls a hook on a object.
 * If hook not found, then return the default value.
 */
#define as_util_hook(hook,default,object,...) \
    (object && object->hooks && object->hooks->hook ? object->hooks->hook(object, ##__VA_ARGS__) : default)
#define as_util_hook(hook,default,object,...) \ …
 
#define as_util_hook_ret_void(hook,object,...) \
    if (object && object->hooks && object->hooks->hook) object->hooks->hook(object, ##__VA_ARGS__)
#define as_util_hook_ret_void(hook,object,...) \ …
 
/**
 * Converts from an as_val.
 */
#define as_util_fromval(object,type_id,type) \
    (object && as_val_type(object) == type_id ? (type *) object : NULL)
#define as_util_fromval(object,type_id,type) \ …
 
#ifdef __cplusplus
} // end extern "C"
#endif