2 * Copyright 2012 Jacek Caban for CodeWeavers
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 unsigned length_flags;
24 #define JSSTR_LENGTH_SHIFT 4
25 #define JSSTR_MAX_LENGTH (1 << (32-JSSTR_LENGTH_SHIFT))
26 #define JSSTR_FLAGS_MASK ((1 << JSSTR_LENGTH_SHIFT)-1)
28 #define JSSTR_FLAG_NULLBSTR 1
30 static inline unsigned jsstr_length(jsstr_t *str)
32 return str->length_flags >> JSSTR_LENGTH_SHIFT;
40 jsstr_t *jsstr_alloc_len(const WCHAR*,unsigned) DECLSPEC_HIDDEN;
41 WCHAR *jsstr_alloc_buf(unsigned,jsstr_t**) DECLSPEC_HIDDEN;
43 static inline jsstr_t *jsstr_alloc(const WCHAR *str)
45 return jsstr_alloc_len(str, strlenW(str));
48 static inline void jsstr_release(jsstr_t *str)
54 static inline jsstr_t *jsstr_addref(jsstr_t *str)
60 static inline jsstr_inline_t *jsstr_as_inline(jsstr_t *str)
62 return CONTAINING_RECORD(str, jsstr_inline_t, str);
65 /* This will be failable in the future. */
66 static inline const WCHAR *jsstr_flatten(jsstr_t *str)
68 return jsstr_as_inline(str)->buf;
71 static inline BOOL jsstr_eq(jsstr_t *str1, jsstr_t *str2)
73 unsigned len = jsstr_length(str1);
74 return len == jsstr_length(str2) && !memcmp(jsstr_as_inline(str1)->buf, jsstr_as_inline(str2)->buf, len*sizeof(WCHAR));
77 static inline void jsstr_extract(jsstr_t *str, unsigned off, unsigned len, WCHAR *buf)
79 memcpy(buf, jsstr_as_inline(str)->buf+off, len*sizeof(WCHAR));
82 static inline unsigned jsstr_flush(jsstr_t *str, WCHAR *buf)
84 unsigned len = jsstr_length(str);
85 memcpy(buf, jsstr_as_inline(str)->buf, len*sizeof(WCHAR));
89 static inline jsstr_t *jsstr_substr(jsstr_t *str, unsigned off, unsigned len)
94 ptr = jsstr_alloc_buf(len, &ret);
96 jsstr_extract(str, off, len, ptr);
100 int jsstr_cmp(jsstr_t*,jsstr_t*) DECLSPEC_HIDDEN;
101 jsstr_t *jsstr_concat(jsstr_t*,jsstr_t*) DECLSPEC_HIDDEN;
103 jsstr_t *jsstr_nan(void) DECLSPEC_HIDDEN;
104 jsstr_t *jsstr_empty(void) DECLSPEC_HIDDEN;
105 jsstr_t *jsstr_undefined(void) DECLSPEC_HIDDEN;
107 BOOL init_strings(void) DECLSPEC_HIDDEN;
108 void free_strings(void) DECLSPEC_HIDDEN;
110 const char *debugstr_jsstr(jsstr_t*) DECLSPEC_HIDDEN;