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jscript: Moved string buffer to separated struct from jsstr_t.

This commit is contained in:
Jacek Caban 2013-03-30 18:00:31 +01:00 committed by Alexandre Julliard
parent c79180a978
commit 29d9d668f7
2 changed files with 23 additions and 14 deletions
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18
dlls/jscript/jsstr.c
View File

@ -22,25 +22,25 @@
const char *debugstr_jsstr(jsstr_t *str)
{
return debugstr_wn(str->str, jsstr_length(str));
return debugstr_wn(jsstr_as_inline(str)->buf, jsstr_length(str));
}
WCHAR *jsstr_alloc_buf(unsigned len, jsstr_t **r)
{
jsstr_t *ret;
jsstr_inline_t *ret;
if(len > JSSTR_MAX_LENGTH)
return NULL;
ret = heap_alloc(FIELD_OFFSET(jsstr_t, str[len+1]));
ret = heap_alloc(FIELD_OFFSET(jsstr_inline_t, buf[len+1]));
if(!ret)
return NULL;
ret->length_flags = len << JSSTR_LENGTH_SHIFT;
ret->ref = 1;
ret->str[len] = 0;
*r = ret;
return ret->str;
ret->str.length_flags = len << JSSTR_LENGTH_SHIFT;
ret->str.ref = 1;
ret->buf[len] = 0;
*r = &ret->str;
return ret->buf;
}
jsstr_t *jsstr_alloc_len(const WCHAR *buf, unsigned len)
@ -61,7 +61,7 @@ int jsstr_cmp(jsstr_t *str1, jsstr_t *str2)
int len2 = jsstr_length(str2);
int ret;
ret = memcmp(str1->str, str2->str, min(len1, len2)*sizeof(WCHAR));
ret = memcmp(jsstr_as_inline(str1)->buf, jsstr_as_inline(str2)->buf, min(len1, len2)*sizeof(WCHAR));
if(!ret)
ret = len1 - len2;

19
dlls/jscript/jsstr.h
View File

@ -19,7 +19,6 @@
struct _jsstr_t {
unsigned length_flags;
unsigned ref;
WCHAR str[1];
};
#define JSSTR_LENGTH_SHIFT 4
@ -33,6 +32,11 @@ static inline unsigned jsstr_length(jsstr_t *str)
return str->length_flags >> JSSTR_LENGTH_SHIFT;
}
typedef struct {
jsstr_t str;
WCHAR buf[1];
} jsstr_inline_t;
jsstr_t *jsstr_alloc_len(const WCHAR*,unsigned) DECLSPEC_HIDDEN;
WCHAR *jsstr_alloc_buf(unsigned,jsstr_t**) DECLSPEC_HIDDEN;
@ -53,27 +57,32 @@ static inline jsstr_t *jsstr_addref(jsstr_t *str)
return str;
}
static inline jsstr_inline_t *jsstr_as_inline(jsstr_t *str)
{
return CONTAINING_RECORD(str, jsstr_inline_t, str);
}
/* This will be failable in the future. */
static inline const WCHAR *jsstr_flatten(jsstr_t *str)
{
return str->str;
return jsstr_as_inline(str)->buf;
}
static inline BOOL jsstr_eq(jsstr_t *str1, jsstr_t *str2)
{
unsigned len = jsstr_length(str1);
return len == jsstr_length(str2) && !memcmp(str1->str, str2->str, len*sizeof(WCHAR));
return len == jsstr_length(str2) && !memcmp(jsstr_as_inline(str1)->buf, jsstr_as_inline(str2)->buf, len*sizeof(WCHAR));
}
static inline void jsstr_extract(jsstr_t *str, unsigned off, unsigned len, WCHAR *buf)
{
memcpy(buf, str->str+off, len*sizeof(WCHAR));
memcpy(buf, jsstr_as_inline(str)->buf+off, len*sizeof(WCHAR));
}
static inline unsigned jsstr_flush(jsstr_t *str, WCHAR *buf)
{
unsigned len = jsstr_length(str);
memcpy(buf, str->str, len*sizeof(WCHAR));
memcpy(buf, jsstr_as_inline(str)->buf, len*sizeof(WCHAR));
return len;
}