HRESULT jsval_copy(jsval_t v, jsval_t *r)
{
switch(jsval_type(v)) {
case JSV_UNDEFINED:
case JSV_NULL:
case JSV_NUMBER:
case JSV_BOOL:
*r = v;
return S_OK;
case JSV_OBJECT:
if(get_object(v))
IDispatch_AddRef(get_object(v));
*r = v;
return S_OK;
case JSV_STRING: {
jsstr_addref(get_string(v));
*r = v;
return S_OK;
}
case JSV_VARIANT:
return jsval_variant(r, get_variant(v));
}
assert(0);
return E_FAIL;
}
HRESULT variant_to_jsval(VARIANT *var, jsval_t *r)
{
switch(V_VT(var)) {
case VT_EMPTY:
*r = jsval_undefined();
return S_OK;
case VT_NULL:
*r = jsval_null();
return S_OK;
case VT_BOOL:
*r = jsval_bool(V_BOOL(var));
return S_OK;
case VT_I4:
*r = jsval_number(V_I4(var));
return S_OK;
case VT_R8:
*r = jsval_number(V_R8(var));
return S_OK;
case VT_BSTR: {
jsstr_t *str;
str = jsstr_alloc_len(V_BSTR(var), SysStringLen(V_BSTR(var)));
if(!str)
return E_OUTOFMEMORY;
if(!V_BSTR(var))
str->length_flags |= JSSTR_FLAG_NULLBSTR;
*r = jsval_string(str);
return S_OK;
}
case VT_DISPATCH: {
if(V_DISPATCH(var))
IDispatch_AddRef(V_DISPATCH(var));
*r = jsval_disp(V_DISPATCH(var));
return S_OK;
}
case VT_I2:
*r = jsval_number(V_I2(var));
return S_OK;
case VT_INT:
*r = jsval_number(V_INT(var));
return S_OK;
case VT_UNKNOWN:
if(V_UNKNOWN(var)) {
IDispatch *disp;
HRESULT hres;
hres = IUnknown_QueryInterface(V_UNKNOWN(var), &IID_IDispatch, (void**)&disp);
if(SUCCEEDED(hres)) {
*r = jsval_disp(disp);
return S_OK;
}
}
/* fall through */
default:
return jsval_variant(r, var);
}
}
HRESULT variant_to_jsval(VARIANT *var, jsval_t *r)
{
if(V_VT(var) == (VT_VARIANT|VT_BYREF))
var = V_VARIANTREF(var);
switch(V_VT(var)) {
case VT_EMPTY:
*r = jsval_undefined();
return S_OK;
case VT_NULL:
*r = jsval_null();
return S_OK;
case VT_BOOL:
*r = jsval_bool(V_BOOL(var));
return S_OK;
case VT_I4:
*r = jsval_number(V_I4(var));
return S_OK;
case VT_R8:
*r = jsval_number(V_R8(var));
return S_OK;
case VT_BSTR: {
jsstr_t *str;
if(V_BSTR(var)) {
str = jsstr_alloc_len(V_BSTR(var), SysStringLen(V_BSTR(var)));
if(!str)
return E_OUTOFMEMORY;
}else {
str = jsstr_null_bstr();
}
*r = jsval_string(str);
return S_OK;
}
case VT_DISPATCH: {
if(V_DISPATCH(var))
IDispatch_AddRef(V_DISPATCH(var));
*r = jsval_disp(V_DISPATCH(var));
return S_OK;
}
case VT_I2:
*r = jsval_number(V_I2(var));
return S_OK;
case VT_UI2:
*r = jsval_number(V_UI2(var));
return S_OK;
case VT_INT:
*r = jsval_number(V_INT(var));
return S_OK;
case VT_UI4:
*r = jsval_number(V_UI4(var));
return S_OK;
case VT_UI8:
/*
* Native doesn't support VT_UI8 here, but it's needed for IE9+ APIs
* (native IE9 doesn't use jscript.dll for JavaScript).
*/
*r = jsval_number(V_UI8(var));
return S_OK;
case VT_R4:
*r = jsval_number(V_R4(var));
return S_OK;
case VT_UNKNOWN:
if(V_UNKNOWN(var)) {
IDispatch *disp;
HRESULT hres;
hres = IUnknown_QueryInterface(V_UNKNOWN(var), &IID_IDispatch, (void**)&disp);
if(SUCCEEDED(hres)) {
*r = jsval_disp(disp);
return S_OK;
}
}else {
*r = jsval_disp(NULL);
return S_OK;
}
/* fall through */
default:
return jsval_variant(r, var);
}
}
