mirror of
https://github.com/VirusTotal/yara.git
synced 2026-10-12 02:10:00 +00:00
Marek Milkovič
4872f95a73
...short-circuit evaluation and usage of none with them. `for .. in` and `for .. of` loops now use the same codegen for their bytecode using 2 instructions `ITER_CONDITION` and `ITER_END`. `ITER_CONDITION` evaluates each iteration whether the condition of the loop was satisfied prematurely or whether the loop is still satisfiable, so essentially making sure that loops are properly short-circuited. `ITER_END` is used for final evaluation of the loop, whether it is satisfied or not, after the iterator got exhausted or the loop was short-circuited. In order to be able to use single codegen for both iterators and string sets, new iterator type was instroduced - `YR_ITERATOR_STRING_SET`. When `ITER_START_STRING_SET` is executed, it is capable of consuming all strings pushed on the stack and construct `YR_ITERATOR_STRING_SET` object which can then be used as a regular iterator.
116 lines
3.6 KiB
C
116 lines
3.6 KiB
C
/* A Bison parser, made by GNU Bison 3.8.2. */
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/* Bison interface for Yacc-like parsers in C
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Copyright (C) 1984, 1989-1990, 2000-2015, 2018-2021 Free Software Foundation,
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Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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/* As a special exception, you may create a larger work that contains
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part or all of the Bison parser skeleton and distribute that work
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under terms of your choice, so long as that work isn't itself a
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parser generator using the skeleton or a modified version thereof
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as a parser skeleton. Alternatively, if you modify or redistribute
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the parser skeleton itself, you may (at your option) remove this
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special exception, which will cause the skeleton and the resulting
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Bison output files to be licensed under the GNU General Public
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License without this special exception.
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This special exception was added by the Free Software Foundation in
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version 2.2 of Bison. */
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/* DO NOT RELY ON FEATURES THAT ARE NOT DOCUMENTED in the manual,
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especially those whose name start with YY_ or yy_. They are
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private implementation details that can be changed or removed. */
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#ifndef YY_RE_YY_RE_GRAMMAR_H_INCLUDED
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# define YY_RE_YY_RE_GRAMMAR_H_INCLUDED
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/* Debug traces. */
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#ifndef YYDEBUG
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# define YYDEBUG 0
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#endif
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#if YYDEBUG
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extern int re_yydebug;
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#endif
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/* Token kinds. */
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#ifndef YYTOKENTYPE
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# define YYTOKENTYPE
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enum yytokentype
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{
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YYEMPTY = -2,
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YYEOF = 0, /* "end of file" */
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YYerror = 256, /* error */
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YYUNDEF = 257, /* "invalid token" */
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_CHAR_ = 258, /* _CHAR_ */
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_ANY_ = 259, /* _ANY_ */
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_RANGE_ = 260, /* _RANGE_ */
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_CLASS_ = 261, /* _CLASS_ */
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_WORD_CHAR_ = 262, /* _WORD_CHAR_ */
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_NON_WORD_CHAR_ = 263, /* _NON_WORD_CHAR_ */
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_SPACE_ = 264, /* _SPACE_ */
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_NON_SPACE_ = 265, /* _NON_SPACE_ */
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_DIGIT_ = 266, /* _DIGIT_ */
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_NON_DIGIT_ = 267, /* _NON_DIGIT_ */
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_WORD_BOUNDARY_ = 268, /* _WORD_BOUNDARY_ */
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_NON_WORD_BOUNDARY_ = 269 /* _NON_WORD_BOUNDARY_ */
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};
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typedef enum yytokentype yytoken_kind_t;
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#endif
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/* Token kinds. */
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#define YYEMPTY -2
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#define YYEOF 0
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#define YYerror 256
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#define YYUNDEF 257
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#define _CHAR_ 258
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#define _ANY_ 259
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#define _RANGE_ 260
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#define _CLASS_ 261
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#define _WORD_CHAR_ 262
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#define _NON_WORD_CHAR_ 263
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#define _SPACE_ 264
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#define _NON_SPACE_ 265
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#define _DIGIT_ 266
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#define _NON_DIGIT_ 267
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#define _WORD_BOUNDARY_ 268
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#define _NON_WORD_BOUNDARY_ 269
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/* Value type. */
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#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
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union YYSTYPE
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{
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#line 75 "re_grammar.y"
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int integer;
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uint32_t range;
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RE_NODE* re_node;
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RE_CLASS* re_class;
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#line 102 "re_grammar.h"
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};
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typedef union YYSTYPE YYSTYPE;
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# define YYSTYPE_IS_TRIVIAL 1
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# define YYSTYPE_IS_DECLARED 1
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#endif
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int re_yyparse (void *yyscanner, RE_LEX_ENVIRONMENT *lex_env);
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#endif /* !YY_RE_YY_RE_GRAMMAR_H_INCLUDED */
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