jerryscript/jerry-core/parser/js/bytecode-data.h
Andrey Shitov 53801e3b41 Replace array of literals with literal storage.
JerryScript-DCO-1.0-Signed-off-by: Evgeny Gavrin e.gavrin@samsung.com
JerryScript-DCO-1.0-Signed-off-by: Andrey Shitov a.shitov@samsung.com
2015-06-10 21:40:10 +03:00

46 lines
1.5 KiB
C

/* Copyright 2014-2015 Samsung Electronics Co., Ltd.
*
* 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 BYTECODE_DATA_H
#define BYTECODE_DATA_H
#include "opcodes.h"
#include "lit-id-hash-table.h"
/*
* All literals are kept in the 'literals' array.
* Literal structure doesn't hold real string. All program-specific strings
* are kept in the 'strings_buffer' and literal has pointer to this buffer.
*
* Literal id is its index in 'literals' array of bytecode_data_t structure.
*
* Bytecode, which is kept in the 'opcodes' field, is divided into blocks
* of 'BLOCK_SIZE' operands. Every block has its own numbering of literals.
* Literal uid could be in range [0, 127] in every block.
*
* To map uid to literal id 'lit_id_hash' table is used.
*/
#define BLOCK_SIZE 64
typedef struct
{
const ecma_char_t *strings_buffer;
const opcode_t *opcodes;
lit_id_hash_table *lit_id_hash;
opcode_counter_t opcodes_count;
} bytecode_data_t;
#endif // BYTECODE_DATA_H