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wine/dlls/jscript/string.c

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/*
* Copyright 2008 Jacek Caban for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "jscript.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(jscript);
typedef struct {
DispatchEx dispex;
WCHAR *str;
DWORD length;
} StringInstance;
static const WCHAR lengthW[] = {'l','e','n','g','t','h',0};
static const WCHAR toStringW[] = {'t','o','S','t','r','i','n','g',0};
static const WCHAR valueOfW[] = {'v','a','l','u','e','O','f',0};
static const WCHAR anchorW[] = {'a','n','c','h','o','r',0};
static const WCHAR bigW[] = {'b','i','g',0};
static const WCHAR blinkW[] = {'b','l','i','n','k',0};
static const WCHAR boldW[] = {'b','o','l','d',0};
static const WCHAR charAtW[] = {'c','h','a','r','A','t',0};
static const WCHAR charCodeAtW[] = {'c','h','a','r','C','o','d','e','A','t',0};
static const WCHAR concatW[] = {'c','o','n','c','a','t',0};
static const WCHAR fixedW[] = {'f','i','x','e','d',0};
static const WCHAR fontcolorW[] = {'f','o','n','t','c','o','l','o','r',0};
static const WCHAR fontsizeW[] = {'f','o','n','t','s','i','z','e',0};
static const WCHAR indexOfW[] = {'i','n','d','e','x','O','f',0};
static const WCHAR italicsW[] = {'i','t','a','l','i','c','s',0};
static const WCHAR lastIndexOfW[] = {'l','a','s','t','I','n','d','e','x','O','f',0};
static const WCHAR linkW[] = {'l','i','n','k',0};
static const WCHAR matchW[] = {'m','a','t','c','h',0};
static const WCHAR replaceW[] = {'r','e','p','l','a','c','e',0};
static const WCHAR searchW[] = {'s','e','a','r','c','h',0};
static const WCHAR sliceW[] = {'s','l','i','c','e',0};
static const WCHAR smallW[] = {'s','m','a','l','l',0};
static const WCHAR splitW[] = {'s','p','l','i','t',0};
static const WCHAR strikeW[] = {'s','t','r','i','k','e',0};
static const WCHAR subW[] = {'s','u','b',0};
static const WCHAR substringW[] = {'s','u','b','s','t','r','i','n','g',0};
static const WCHAR substrW[] = {'s','u','b','s','t','r',0};
static const WCHAR supW[] = {'s','u','p',0};
static const WCHAR toLowerCaseW[] = {'t','o','L','o','w','e','r','C','a','s','e',0};
static const WCHAR toUpperCaseW[] = {'t','o','U','p','p','e','r','C','a','s','e',0};
static const WCHAR toLocaleLowerCaseW[] = {'t','o','L','o','c','a','l','e','L','o','w','e','r','C','a','s','e',0};
static const WCHAR toLocaleUpperCaseW[] = {'t','o','L','o','c','a','l','e','U','p','p','e','r','C','a','s','e',0};
static const WCHAR localeCompareW[] = {'l','o','c','a','l','e','C','o','m','p','a','r','e',0};
static const WCHAR hasOwnPropertyW[] = {'h','a','s','O','w','n','P','r','o','p','e','r','t','y',0};
static const WCHAR propertyIsEnumerableW[] =
{'p','r','o','p','e','r','t','y','I','s','E','n','u','m','e','r','a','b','l','e',0};
static const WCHAR isPrototypeOfW[] = {'i','s','P','r','o','t','o','t','y','p','e','O','f',0};
static HRESULT String_length(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
TRACE("%p\n", dispex);
switch(flags) {
case DISPATCH_PROPERTYGET: {
StringInstance *jsthis = (StringInstance*)dispex;
V_VT(retv) = VT_I4;
V_I4(retv) = jsthis->length;
break;
}
default:
FIXME("unimplemented flags %x\n", flags);
return E_NOTIMPL;
}
return S_OK;
}
/* ECMA-262 3rd Edition 15.5.4.2 */
static HRESULT String_toString(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
StringInstance *string;
TRACE("\n");
if(!is_class(dispex, JSCLASS_STRING)) {
WARN("this is not a string object\n");
return E_FAIL;
}
string = (StringInstance*)dispex;
if(retv) {
BSTR str = SysAllocString(string->str);
if(!str)
return E_OUTOFMEMORY;
V_VT(retv) = VT_BSTR;
V_BSTR(retv) = str;
}
return S_OK;
}
/* ECMA-262 3rd Edition 15.5.4.2 */
static HRESULT String_valueOf(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
TRACE("\n");
return String_toString(dispex, lcid, flags, dp, retv, ei, sp);
}
static HRESULT String_anchor(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT String_big(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT String_blink(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT String_bold(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
/* ECMA-262 3rd Edition 15.5.4.5 */
static HRESULT String_charAt(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
StringInstance *strobj;
BSTR str;
INT pos = 0;
HRESULT hres;
TRACE("\n");
if(dispex->builtin_info->class != JSCLASS_STRING) {
FIXME("not string this not supported\n");
return E_NOTIMPL;
}
strobj = (StringInstance*)dispex;
if(arg_cnt(dp)) {
VARIANT num;
hres = to_integer(dispex->ctx, get_arg(dp, 0), ei, &num);
if(FAILED(hres))
return hres;
if(V_VT(&num) == VT_I4) {
pos = V_I4(&num);
}else {
WARN("pos = %lf\n", V_R8(&num));
pos = -1;
}
}
if(!retv)
return S_OK;
if(0 <= pos && pos < strobj->length)
str = SysAllocStringLen(strobj->str+pos, 1);
else
str = SysAllocStringLen(NULL, 0);
if(!str)
return E_OUTOFMEMORY;
V_VT(retv) = VT_BSTR;
V_BSTR(retv) = str;
return S_OK;
}
/* ECMA-262 3rd Edition 15.5.4.5 */
static HRESULT String_charCodeAt(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
const WCHAR *str;
DWORD length, idx = 0;
HRESULT hres;
TRACE("\n");
if(dispex->builtin_info->class == JSCLASS_STRING) {
StringInstance *string = (StringInstance*)dispex;
str = string->str;
length = string->length;
}else {
FIXME("not string this not supported\n");
return E_NOTIMPL;
}
if(arg_cnt(dp) > 0) {
VARIANT v;
hres = to_integer(dispex->ctx, get_arg(dp, 0), ei, &v);
if(FAILED(hres))
return hres;
if(V_VT(&v) != VT_I4 || V_I4(&v) < 0 || V_I4(&v) >= length) {
FIXME("NAN\n");
return E_FAIL;
}
idx = V_I4(&v);
}
if(retv) {
V_VT(retv) = VT_I4;
V_I4(retv) = str[idx];
}
return S_OK;
}
static HRESULT String_concat(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT String_fixed(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT String_fontcolor(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT String_fontsize(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT String_indexOf(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT String_italics(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT String_lastIndexOf(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT String_link(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
/* ECMA-262 3rd Edition 15.5.4.10 */
static HRESULT String_match(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
StringInstance *This = (StringInstance*)dispex;
match_result_t *match_result;
DispatchEx *array;
VARIANT var, *arg_var;
DWORD match_cnt, i;
HRESULT hres = S_OK;
TRACE("\n");
if(dp->cArgs - dp->cNamedArgs != 1) {
FIXME("unsupported args\n");
return E_NOTIMPL;
}
arg_var = get_arg(dp, 0);
switch(V_VT(arg_var)) {
case VT_DISPATCH: {
DispatchEx *regexp;
regexp = iface_to_jsdisp((IUnknown*)V_DISPATCH(arg_var));
if(regexp) {
if(regexp->builtin_info->class == JSCLASS_REGEXP) {
hres = regexp_match(regexp, This->str, This->length, FALSE, &match_result, &match_cnt);
jsdisp_release(regexp);
if(FAILED(hres))
return hres;
break;
}
jsdisp_release(regexp);
}
}
default:
FIXME("implemented only for regexp args\n");
return E_NOTIMPL;
}
if(!match_cnt) {
TRACE("no match\n");
if(retv)
V_VT(retv) = VT_NULL;
return S_OK;
}
hres = create_array(dispex->ctx, match_cnt, &array);
if(FAILED(hres))
return hres;
V_VT(&var) = VT_BSTR;
for(i=0; i < match_cnt; i++) {
V_BSTR(&var) = SysAllocStringLen(match_result[i].str, match_result[i].len);
if(!V_BSTR(&var)) {
hres = E_OUTOFMEMORY;
break;
}
hres = jsdisp_propput_idx(array, i, lcid, &var, ei, NULL/*FIXME*/);
SysFreeString(V_BSTR(&var));
if(FAILED(hres))
break;
}
if(FAILED(hres)) {
jsdisp_release(array);
return hres;
}
V_VT(retv) = VT_DISPATCH;
V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(array);
return S_OK;
}
static HRESULT String_replace(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT String_search(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
/* ECMA-262 3rd Edition 15.5.4.13 */
static HRESULT String_slice(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
const WCHAR *str;
DWORD length;
INT start=0, end;
VARIANT v;
HRESULT hres;
TRACE("\n");
if(is_class(dispex, JSCLASS_STRING)) {
StringInstance *string = (StringInstance*)dispex;
str = string->str;
length = string->length;
}else {
FIXME("this is not a string class");
return E_NOTIMPL;
}
if(arg_cnt(dp)) {
hres = to_integer(dispex->ctx, dp->rgvarg + dp->cArgs-1, ei, &v);
if(FAILED(hres))
return hres;
if(V_VT(&v) == VT_I4) {
start = V_I4(&v);
if(start < 0) {
start = length + start;
if(start < 0)
start = 0;
}else if(start > length) {
start = length;
}
}else {
start = V_R8(&v) < 0.0 ? 0 : length;
}
}else {
start = 0;
}
if(arg_cnt(dp) >= 2) {
hres = to_integer(dispex->ctx, dp->rgvarg + dp->cArgs-2, ei, &v);
if(FAILED(hres))
return hres;
if(V_VT(&v) == VT_I4) {
end = V_I4(&v);
if(end < 0) {
end = length + end;
if(end < 0)
end = 0;
}else if(end > length) {
end = length;
}
}else {
end = V_R8(&v) < 0.0 ? 0 : length;
}
}else {
end = length;
}
if(end < start)
end = start;
if(retv) {
BSTR retstr = SysAllocStringLen(str+start, end-start);
if(!str)
return E_OUTOFMEMORY;
V_VT(retv) = VT_BSTR;
V_BSTR(retv) = retstr;
}
return S_OK;
}
static HRESULT String_small(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT String_split(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT String_strike(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT String_sub(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
/* ECMA-262 3rd Edition 15.5.4.15 */
static HRESULT String_substring(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
const WCHAR *str;
INT start=0, end;
DWORD length;
VARIANT v;
HRESULT hres;
TRACE("\n");
if(is_class(dispex, JSCLASS_STRING)) {
StringInstance *string = (StringInstance*)dispex;
length = string->length;
str = string->str;
}else {
FIXME("not string this not supported\n");
return E_NOTIMPL;
}
if(arg_cnt(dp) >= 1) {
hres = to_integer(dispex->ctx, dp->rgvarg + dp->cArgs-1, ei, &v);
if(FAILED(hres))
return hres;
if(V_VT(&v) == VT_I4) {
start = V_I4(&v);
if(start < 0)
start = 0;
else if(start >= length)
start = length;
}else {
start = V_R8(&v) < 0.0 ? 0 : length;
}
}
if(arg_cnt(dp) >= 2) {
hres = to_integer(dispex->ctx, dp->rgvarg + dp->cArgs-2, ei, &v);
if(FAILED(hres))
return hres;
if(V_VT(&v) == VT_I4) {
end = V_I4(&v);
if(end < 0)
end = 0;
else if(end > length)
end = length;
}else {
end = V_R8(&v) < 0.0 ? 0 : length;
}
}else {
end = length;
}
if(start > end) {
INT tmp = start;
start = end;
end = tmp;
}
if(retv) {
V_VT(retv) = VT_BSTR;
V_BSTR(retv) = SysAllocStringLen(str+start, end-start);
if(!V_BSTR(retv))
return E_OUTOFMEMORY;
}
return S_OK;
}
static HRESULT String_substr(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT String_sup(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT String_toLowerCase(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT String_toUpperCase(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT String_toLocaleLowerCase(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT String_toLocaleUpperCase(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT String_localeCompare(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT String_hasOwnProperty(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT String_propertyIsEnumerable(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT String_isPrototypeOf(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT String_value(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
FIXME("\n");
return E_NOTIMPL;
}
static void String_destructor(DispatchEx *dispex)
{
StringInstance *This = (StringInstance*)dispex;
heap_free(This->str);
heap_free(This);
}
static const builtin_prop_t String_props[] = {
{anchorW, String_anchor, PROPF_METHOD},
{bigW, String_big, PROPF_METHOD},
{blinkW, String_blink, PROPF_METHOD},
{boldW, String_bold, PROPF_METHOD},
{charAtW, String_charAt, PROPF_METHOD},
{charCodeAtW, String_charCodeAt, PROPF_METHOD},
{concatW, String_concat, PROPF_METHOD},
{fixedW, String_fixed, PROPF_METHOD},
{fontcolorW, String_fontcolor, PROPF_METHOD},
{fontsizeW, String_fontsize, PROPF_METHOD},
{hasOwnPropertyW, String_hasOwnProperty, PROPF_METHOD},
{indexOfW, String_indexOf, PROPF_METHOD},
{isPrototypeOfW, String_isPrototypeOf, PROPF_METHOD},
{italicsW, String_italics, PROPF_METHOD},
{lastIndexOfW, String_lastIndexOf, PROPF_METHOD},
{lengthW, String_length, 0},
{linkW, String_link, PROPF_METHOD},
{localeCompareW, String_localeCompare, PROPF_METHOD},
{matchW, String_match, PROPF_METHOD},
{propertyIsEnumerableW, String_propertyIsEnumerable, PROPF_METHOD},
{replaceW, String_replace, PROPF_METHOD},
{searchW, String_search, PROPF_METHOD},
{sliceW, String_slice, PROPF_METHOD},
{smallW, String_small, PROPF_METHOD},
{splitW, String_split, PROPF_METHOD},
{strikeW, String_strike, PROPF_METHOD},
{substringW, String_substring, PROPF_METHOD},
{substrW, String_substr, PROPF_METHOD},
{subW, String_sub, PROPF_METHOD},
{supW, String_sup, PROPF_METHOD},
{toLocaleLowerCaseW, String_toLocaleLowerCase, PROPF_METHOD},
{toLocaleUpperCaseW, String_toLocaleUpperCase, PROPF_METHOD},
{toLowerCaseW, String_toLowerCase, PROPF_METHOD},
{toStringW, String_toString, PROPF_METHOD},
{toUpperCaseW, String_toUpperCase, PROPF_METHOD},
{valueOfW, String_valueOf, PROPF_METHOD}
};
static const builtin_info_t String_info = {
JSCLASS_STRING,
{NULL, String_value, 0},
sizeof(String_props)/sizeof(*String_props),
String_props,
String_destructor,
NULL
};
static HRESULT StringConstr_value(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
{
HRESULT hres;
switch(flags) {
case DISPATCH_CONSTRUCT: {
DispatchEx *ret;
if(arg_cnt(dp)) {
BSTR str;
hres = to_string(dispex->ctx, get_arg(dp, 0), ei, &str);
if(FAILED(hres))
return hres;
hres = create_string(dispex->ctx, str, SysStringLen(str), &ret);
SysFreeString(str);
}else {
hres = create_string(dispex->ctx, NULL, 0, &ret);
}
if(FAILED(hres))
return hres;
V_VT(retv) = VT_DISPATCH;
V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(ret);
break;
}
default:
FIXME("unimplemented flags: %x\n", flags);
return E_NOTIMPL;
}
return S_OK;
}
static HRESULT string_alloc(script_ctx_t *ctx, BOOL use_constr, StringInstance **ret)
{
StringInstance *string;
HRESULT hres;
string = heap_alloc_zero(sizeof(StringInstance));
if(!string)
return E_OUTOFMEMORY;
if(use_constr)
hres = init_dispex_from_constr(&string->dispex, ctx, &String_info, ctx->string_constr);
else
hres = init_dispex(&string->dispex, ctx, &String_info, NULL);
if(FAILED(hres)) {
heap_free(string);
return hres;
}
*ret = string;
return S_OK;
}
HRESULT create_string_constr(script_ctx_t *ctx, DispatchEx **ret)
{
StringInstance *string;
HRESULT hres;
hres = string_alloc(ctx, FALSE, &string);
if(FAILED(hres))
return hres;
hres = create_builtin_function(ctx, StringConstr_value, PROPF_CONSTR, &string->dispex, ret);
jsdisp_release(&string->dispex);
return hres;
}
HRESULT create_string(script_ctx_t *ctx, const WCHAR *str, DWORD len, DispatchEx **ret)
{
StringInstance *string;
HRESULT hres;
hres = string_alloc(ctx, TRUE, &string);
if(FAILED(hres))
return hres;
if(len == -1)
len = strlenW(str);
string->length = len;
string->str = heap_alloc((len+1)*sizeof(WCHAR));
if(!string->str) {
jsdisp_release(&string->dispex);
return E_OUTOFMEMORY;
}
memcpy(string->str, str, len*sizeof(WCHAR));
string->str[len] = 0;
*ret = &string->dispex;
return S_OK;
}
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