Roland Takacs
21f561f8ef
JerryScript-DCO-1.0-Signed-off-by: Roland Takacs rtakacs.u-szeged@partner.samsung.com
170 lines
7.0 KiB
C
170 lines
7.0 KiB
C
/* Copyright 2015 Samsung Electronics Co., Ltd.
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* Copyright 2015 University of Szeged
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef RCS_RECORDS_H
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#define RCS_RECORDS_H
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#include "ecma-globals.h"
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#define RCS_RECORD_TYPE_FIRST RCS_RECORD_TYPE_CHARSET
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#define RCS_RECORD_TYPE_LAST RCS_RECORD_TYPE_NUMBER
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#define RCS_RECORD_TYPE_MIN RCS_RECORD_TYPE_FREE
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#define RCS_RECORD_TYPE_MAX RCS_RECORD_TYPE_NUMBER
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#define RCS_RECORD_TYPE_IS_FREE(type) ((type) == RCS_RECORD_TYPE_FREE)
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#define RCS_RECORD_TYPE_IS_NUMBER(type) ((type) == RCS_RECORD_TYPE_NUMBER)
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#define RCS_RECORD_TYPE_IS_CHARSET(type) ((type) == RCS_RECORD_TYPE_CHARSET)
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#define RCS_RECORD_TYPE_IS_MAGIC_STR(type) ((type) == RCS_RECORD_TYPE_MAGIC_STR)
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#define RCS_RECORD_TYPE_IS_MAGIC_STR_EX(type) ((type) == RCS_RECORD_TYPE_MAGIC_STR_EX)
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#define RCS_RECORD_TYPE_IS_VALID(type) ((type) <= RCS_RECORD_TYPE_MAX)
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#define RCS_RECORD_IS_FREE(rec) (RCS_RECORD_TYPE_IS_FREE (rcs_record_get_type (rec)))
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#define RCS_RECORD_IS_NUMBER(rec) (RCS_RECORD_TYPE_IS_NUMBER (rcs_record_get_type (rec)))
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#define RCS_RECORD_IS_CHARSET(rec) (RCS_RECORD_TYPE_IS_CHARSET (rcs_record_get_type (rec)))
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#define RCS_RECORD_IS_MAGIC_STR(rec) (RCS_RECORD_TYPE_IS_MAGIC_STR (rcs_record_get_type (rec)))
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#define RCS_RECORD_IS_MAGIC_STR_EX(rec) (RCS_RECORD_TYPE_IS_MAGIC_STR_EX (rcs_record_get_type (rec)))
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/**
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* Common header informations.
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*/
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#define RCS_HEADER_TYPE_POS 0u
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#define RCS_HEADER_TYPE_WIDTH 4u
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#define RCS_HEADER_FIELD_BEGIN_POS (RCS_HEADER_TYPE_POS + RCS_HEADER_TYPE_WIDTH)
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/**
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* Number record
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* Doesn't hold any characters, holds a number.
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* Numbers from source code are represented as number literals.
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*
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* Layout:
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* ------- header -----------------------
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* type (4 bits)
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* padding (12 bits)
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* pointer to prev (16 bits)
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* --------------------------------------
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* ecma_number_t
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*/
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#define RCS_NUMBER_HEADER_SIZE RCS_DYN_STORAGE_LENGTH_UNIT
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#define RCS_NUMBER_HEADER_PREV_POS (RCS_HEADER_FIELD_BEGIN_POS + 12u)
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/**
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* Charset record
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*
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* layout:
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* ------- header -----------------------
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* type (4 bits)
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* alignment (2 bits)
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* unused (2 bits)
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* hash (8 bits)
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* length (16 bits)
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* pointer to prev (16 bits)
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* ------- characters -------------------
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* ...
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* chars
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* ....
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* ------- alignment bytes --------------
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* unused bytes (their count is specified
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* by 'alignment' field in header)
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* --------------------------------------
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*/
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#define RCS_CHARSET_HEADER_SIZE (RCS_DYN_STORAGE_LENGTH_UNIT + RCS_DYN_STORAGE_LENGTH_UNIT / 2)
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#define RCS_CHARSET_HEADER_ALIGN_POS RCS_HEADER_FIELD_BEGIN_POS
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#define RCS_CHARSET_HEADER_ALIGN_WIDTH RCS_DYN_STORAGE_LENGTH_UNIT_LOG
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#define RCS_CHARSET_HEADER_UNUSED_POS (RCS_CHARSET_HEADER_ALIGN_POS + RCS_CHARSET_HEADER_ALIGN_WIDTH)
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#define RCS_CHARSET_HEADER_UNUSED_WIDTH 2u
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#define RCS_CHARSET_HEADER_HASH_POS (RCS_CHARSET_HEADER_UNUSED_POS + RCS_CHARSET_HEADER_UNUSED_WIDTH)
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#define RCS_CHARSET_HEADER_HASH_WIDTH 8u
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#define RCS_CHARSET_HEADER_LENGTH_POS (RCS_CHARSET_HEADER_HASH_POS + RCS_CHARSET_HEADER_HASH_WIDTH)
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#define RCS_CHARSET_HEADER_LENGTH_WIDTH 16u
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#define RCS_CHARSET_HEADER_PREV_POS (RCS_CHARSET_HEADER_LENGTH_POS + RCS_CHARSET_HEADER_LENGTH_WIDTH)
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/**
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* Magic string record
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* Doesn't hold any characters. Corresponding string is identified by its id.
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*
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* Layout:
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* ------- header -----------------------
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* type (4 bits)
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* magic string id (12 bits)
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* pointer to prev (16 bits)
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* --------------------------------------
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*/
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#define RCS_MAGIC_STR_HEADER_SIZE RCS_DYN_STORAGE_LENGTH_UNIT
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#define RCS_MAGIC_STR_HEADER_ID_POS RCS_HEADER_FIELD_BEGIN_POS
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#define RCS_MAGIC_STR_HEADER_ID_WIDTH 12u
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#define RCS_MAGIC_STR_HEADER_PREV_POS (RCS_MAGIC_STR_HEADER_ID_POS + RCS_MAGIC_STR_HEADER_ID_WIDTH)
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/**
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* Free record
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* Doesn't hold any data.
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*
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* Layout:
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* ------- header -----------------------
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* type (4 bits)
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* length (12 bits)
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* pointer to prev (16 bits)
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* --------------------------------------
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*/
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#define RCS_FREE_HEADER_SIZE RCS_DYN_STORAGE_LENGTH_UNIT
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#define RCS_FREE_HEADER_LENGTH_POS RCS_HEADER_FIELD_BEGIN_POS
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#define RCS_FREE_HEADER_LENGTH_WIDTH (14u - RCS_DYN_STORAGE_LENGTH_UNIT_LOG)
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#define RCS_FREE_HEADER_PREV_POS (RCS_FREE_HEADER_LENGTH_POS + RCS_FREE_HEADER_LENGTH_WIDTH)
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/*
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* Setters
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*/
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extern void rcs_record_set_type (rcs_record_t *, rcs_record_type_t);
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extern void rcs_record_set_prev (rcs_record_set_t *, rcs_record_t *, rcs_record_t *);
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extern void rcs_record_set_size (rcs_record_t *, size_t);
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extern void rcs_record_set_alignment_bytes_count (rcs_record_t *, size_t);
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extern void rcs_record_set_hash (rcs_record_t *, lit_string_hash_t);
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extern void rcs_record_set_charset (rcs_record_set_t *, rcs_record_t *, const lit_utf8_byte_t *, lit_utf8_size_t);
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extern void rcs_record_set_magic_str_id (rcs_record_t *, lit_magic_string_id_t);
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extern void rcs_record_set_magic_str_ex_id (rcs_record_t *, lit_magic_string_ex_id_t);
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/*
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* Getters
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*/
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extern rcs_record_type_t rcs_record_get_type (rcs_record_t *);
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extern rcs_record_t *rcs_record_get_prev (rcs_record_set_t *, rcs_record_t *);
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extern size_t rcs_record_get_size (rcs_record_t *);
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extern size_t rcs_header_get_size (rcs_record_t *);
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extern size_t rcs_record_get_alignment_bytes_count (rcs_record_t *);
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extern lit_string_hash_t rcs_record_get_hash (rcs_record_t *);
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extern lit_utf8_size_t rcs_record_get_length (rcs_record_t *);
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extern lit_utf8_size_t rcs_record_get_charset (rcs_record_set_t *, rcs_record_t *, const lit_utf8_byte_t *, size_t);
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extern lit_magic_string_id_t rcs_record_get_magic_str_id (rcs_record_t *);
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extern lit_magic_string_ex_id_t rcs_record_get_magic_str_ex_id (rcs_record_t *);
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extern ecma_number_t rcs_record_get_number (rcs_record_set_t *, rcs_record_t *);
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extern rcs_record_t *rcs_record_get_first (rcs_record_set_t *);
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extern rcs_record_t *rcs_record_get_next (rcs_record_set_t *, rcs_record_t *);
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extern bool rcs_record_is_equal (rcs_record_set_t *, rcs_record_t *, rcs_record_t *);
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extern bool rcs_record_is_equal_charset (rcs_record_set_t *, rcs_record_t *, const lit_utf8_byte_t *, lit_utf8_size_t);
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#endif /* !RCS_RECORDS_H */
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