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/* Copyright JS Foundation and other contributors, http://js.foundation
*
* 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.
*/
#ifndef JERRY_SNAPSHOT_H
#define JERRY_SNAPSHOT_H
#include "ecma-globals.h"
/**
* Snapshot header
*/
typedef struct
{
/* The size of this structure is recommended to be divisible by
* uint32_t alignment. Otherwise some bytes after the header are wasted. */
uint32_t magic; /**< four byte magic number */
uint32_t version; /**< version number */
uint32_t global_flags; /**< global configuration and feature flags */
uint32_t lit_table_offset; /**< byte offset of the literal table */
uint32_t number_of_funcs; /**< number of primary ECMAScript functions */
uint32_t func_offsets[1]; /**< function offsets (lowest bit: global(0) or eval(1) context) */
} jerry_snapshot_header_t;
/**
* Jerry snapshot magic marker.
*/
#define JERRY_SNAPSHOT_MAGIC (0x5952524Au)
/**
* Jerry snapshot format version.
*/
#define JERRY_SNAPSHOT_VERSION (15u)
/**
* Snapshot configuration flags.
*/
typedef enum
{
/* 8 bits are reserved for dynamic features */
JERRY_SNAPSHOT_HAS_REGEX_LITERAL = (1u << 0), /**< byte code has regex literal */
JERRY_SNAPSHOT_HAS_CLASS_LITERAL = (1u << 1), /**< byte code has class literal */
/* 24 bits are reserved for compile time features */
JERRY_SNAPSHOT_FOUR_BYTE_CPOINTER = (1u << 8) /**< compressed pointers are four byte long */
} jerry_snapshot_global_flags_t;
#endif /* !JERRY_SNAPSHOT_H */
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