Ilmir Usmanov
dc8ab27900
Add internal hash map of literal indexes: In this hash map key is pair of block number and literal's unique identifier in the block, and the value is a literal index that unique in the whole program. Block is a continues array of opcodes. So, bytecode is splitted into blocks. Each block has its own uid counter. To get literal index the interpreter looks up it in the hash map. Thus, now JS program is able to have more than 255 identifiers/string literals. The first 128 (0-127) uids are reserved for block's uid counter, the other 128 (128-255) are reserved for tmp variables.
63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
/* Copyright 2014 Samsung Electronics Co., Ltd.
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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 LITERAL_H
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#define LITERAL_H
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#include "ecma-globals.h"
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#include "lp-string.h"
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typedef enum
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{
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LIT_UNKNOWN,
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LIT_STR,
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LIT_MAGIC_STR,
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LIT_NUMBER
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}
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literal_type;
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typedef struct
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{
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union
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{
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ecma_magic_string_id_t magic_str_id;
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ecma_number_t num;
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lp_string lp;
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void *none;
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}
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data;
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literal_type type;
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}
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literal;
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#define LITERAL_TO_REWRITE (INVALID_VALUE - 1)
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literal create_empty_literal (void);
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literal create_literal_from_num (ecma_number_t);
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literal create_literal_from_str (const char *, ecma_length_t);
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literal create_literal_from_str_compute_len (const char *);
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literal create_literal_from_zt (const ecma_char_t *, ecma_length_t);
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bool literal_equal (literal, literal);
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bool literal_equal_s (literal, const char *);
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bool literal_equal_zt (literal, const ecma_char_t *);
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bool literal_equal_num (literal, ecma_number_t);
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bool literal_equal_type (literal, literal);
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bool literal_equal_type_s (literal, const char *);
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bool literal_equal_type_zt (literal, const ecma_char_t *);
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bool literal_equal_type_num (literal, ecma_number_t);
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const ecma_char_t *literal_to_zt (literal);
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#endif /* LITERAL_H */
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