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Optimized json_parser
1. use zend_string in key 2. use faster APIs 3. use ZVAL_COPY_VALUE instead of assignment (save u2 copy)
This commit is contained in:
Xinchen Hui
parent
9f0dbdf6c8
commit
76fb02123f
3 changed files with 796 additions and 746 deletions
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@ -1,8 +1,10 @@
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/* A Bison parser, made by GNU Bison 3.0.4. */
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/* Bison interface for Yacc-like parsers in C
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/* A Bison parser, made by GNU Bison 2.4.1. */
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Copyright (C) 1984, 1989-1990, 2000-2015 Free Software Foundation, Inc.
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/* Skeleton interface for Bison's Yacc-like parsers in C
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Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
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Free Software Foundation, 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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@ -30,21 +32,13 @@
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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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#ifndef YY_PHP_JSON_YY_HOME_JAKUB_PROG_PHP_MASTER_EXT_JSON_JSON_PARSER_TAB_H_INCLUDED
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# define YY_PHP_JSON_YY_HOME_JAKUB_PROG_PHP_MASTER_EXT_JSON_JSON_PARSER_TAB_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 php_json_yydebug;
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#endif
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/* Token type. */
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/* Tokens. */
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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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/* Put the tokens into the symbol table, so that GDB and other debuggers
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know about them. */
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enum yytokentype {
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PHP_JSON_T_NUL = 258,
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PHP_JSON_T_TRUE = 259,
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PHP_JSON_T_FALSE = 260,
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@ -67,29 +61,28 @@ extern int php_json_yydebug;
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#define PHP_JSON_T_EOI 265
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#define PHP_JSON_T_ERROR 266
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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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#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
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typedef union YYSTYPE
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{
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zval value;
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struct {
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zval key;
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zend_string *key;
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zval val;
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} pair;
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};
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typedef union YYSTYPE YYSTYPE;
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} YYSTYPE;
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# define YYSTYPE_IS_TRIVIAL 1
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# define yystype YYSTYPE /* obsolescent; will be withdrawn */
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# define YYSTYPE_IS_DECLARED 1
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#endif
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int php_json_yyparse (php_json_parser *parser);
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#endif /* !YY_PHP_JSON_YY_HOME_JAKUB_PROG_PHP_MASTER_EXT_JSON_JSON_PARSER_TAB_H_INCLUDED */
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@ -46,7 +46,7 @@ int json_yydebug = 1;
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%union {
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zval value;
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struct {
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zval key;
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zend_string *key;
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zval val;
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} pair;
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}
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@ -67,13 +67,13 @@ int json_yydebug = 1;
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%type <pair> pair
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%destructor { zval_dtor(&$$); } <value>
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%destructor { zval_dtor(&$$.key); zval_dtor(&$$.val); } <pair>
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%destructor { zend_string_release($$.key); zval_dtor(&$$.val); } <pair>
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%code {
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int php_json_yylex(union YYSTYPE *value, php_json_parser *parser);
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void php_json_yyerror(php_json_parser *parser, char const *msg);
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void php_json_parser_object_init(php_json_parser *parser, zval *object);
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void php_json_parser_object_update(php_json_parser *parser, zval *object, zval *zkey, zval *zvalue);
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void php_json_parser_object_update(php_json_parser *parser, zval *object, zend_string *key, zval *zvalue);
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void php_json_parser_array_init(zval *object);
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void php_json_parser_array_append(zval *array, zval *zvalue);
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@ -89,7 +89,7 @@ void php_json_parser_array_append(zval *array, zval *zvalue);
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%% /* Rules */
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start:
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value PHP_JSON_T_EOI { $$ = $1; ZVAL_COPY_VALUE(parser->return_value, &$1); PHP_JSON_USE($2); YYACCEPT; }
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value PHP_JSON_T_EOI { ZVAL_COPY_VALUE(&$$, &$1); ZVAL_COPY_VALUE(parser->return_value, &$1); PHP_JSON_USE($2); YYACCEPT; }
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| value errlex { PHP_JSON_USE_2($$, $1, $2); }
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;
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@ -108,18 +108,18 @@ members:
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;
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member:
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pair { php_json_parser_object_init(parser, &$$); php_json_parser_object_update(parser, &$$, &$1.key, &$1.val); }
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| member ',' pair { php_json_parser_object_update(parser, &$1, &$3.key, &$3.val); $$ = $1; }
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pair { php_json_parser_object_init(parser, &$$); php_json_parser_object_update(parser, &$$, $1.key, &$1.val); }
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| member ',' pair { php_json_parser_object_update(parser, &$1, $3.key, &$3.val); ZVAL_COPY_VALUE(&$$, &$1); }
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| member errlex { PHP_JSON_USE_2($$, $1, $2); }
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;
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pair:
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key ':' value { $$.key = $1; $$.val = $3; }
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key ':' value { $$.key = Z_STR($1); ZVAL_COPY_VALUE(&$$.val, &$3); }
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| key errlex { PHP_JSON_USE_2($$, $1, $2); }
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;
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array:
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'[' { PHP_JSON_DEPTH_INC; } elements array_end { PHP_JSON_DEPTH_DEC; $$ = $3; }
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'[' { PHP_JSON_DEPTH_INC; } elements array_end { PHP_JSON_DEPTH_DEC; ZVAL_COPY_VALUE(&$$, &$3); }
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;
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array_end:
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@ -134,7 +134,7 @@ elements:
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element:
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value { php_json_parser_array_init(&$$); php_json_parser_array_append(&$$, &$1); }
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| element ',' value { php_json_parser_array_append(&$1, &$3); $$ = $1; }
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| element ',' value { php_json_parser_array_append(&$1, &$3); ZVAL_COPY_VALUE(&$$, &$1); }
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| element errlex { PHP_JSON_USE_2($$, $1, $2); }
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;
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@ -185,25 +185,25 @@ void php_json_parser_object_init(php_json_parser *parser, zval *object)
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}
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}
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void php_json_parser_object_update(php_json_parser *parser, zval *object, zval *zkey, zval *zvalue)
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void php_json_parser_object_update(php_json_parser *parser, zval *object, zend_string *key, zval *zvalue)
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{
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char *key = Z_STRVAL_P(zkey);
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size_t key_len = Z_STRLEN_P(zkey);
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if (parser->scanner.options & PHP_JSON_OBJECT_AS_ARRAY) {
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add_assoc_zval_ex(object, key, key_len, zvalue);
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if (Z_TYPE_P(object) == IS_ARRAY/*parser->scanner.options & PHP_JSON_OBJECT_AS_ARRAY*/) {
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zend_symtable_update(Z_ARRVAL_P(object), key, zvalue);
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} else {
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if (key_len == 0) {
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key = "_empty_";
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key_len = sizeof("_empty_") - 1;
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zval zkey;
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/* ZEND_ASSERT(Z_TYPE_P(object) == IS_OBJECT); */
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if (key->len == 0) {
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zend_string_release(key);
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key = zend_string_init("_empty_", sizeof("_empty_") - 1, 0);
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}
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add_property_zval_ex(object, key, key_len, zvalue);
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ZVAL_NEW_STR(&zkey, key);
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zend_std_write_property(object, &zkey, zvalue, NULL);
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if (Z_REFCOUNTED_P(zvalue)) {
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Z_DELREF_P(zvalue);
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}
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}
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zval_dtor(zkey);
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zend_string_release(key);
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}
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void php_json_parser_array_init(zval *array)
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@ -213,7 +213,7 @@ void php_json_parser_array_init(zval *array)
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void php_json_parser_array_append(zval *array, zval *zvalue)
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{
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add_next_index_zval(array, zvalue);
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zend_hash_next_index_insert(Z_ARRVAL_P(array), zvalue);
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}
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int php_json_yylex(union YYSTYPE *value, php_json_parser *parser)
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