template<> bool ScriptInterface::FromJSVal<std::wstring>(JSContext* cx, JS::HandleValue v, std::wstring& out)
{
JSAutoRequest rq(cx);
WARN_IF_NOT(v.isString() || v.isNumber(), v); // allow implicit number conversions
JS::RootedString str(cx, JS::ToString(cx, v));
if (!str)
FAIL("Argument must be convertible to a string");
if (JS_StringHasLatin1Chars(str))
{
size_t length;
JS::AutoCheckCannotGC nogc;
const JS::Latin1Char* ch = JS_GetLatin1StringCharsAndLength(cx, nogc, str, &length);
if (!ch)
FAIL("JS_GetLatin1StringCharsAndLength failed");
out.assign(ch, ch + length);
}
else
{
size_t length;
JS::AutoCheckCannotGC nogc;
const char16_t* ch = JS_GetTwoByteStringCharsAndLength(cx, nogc, str, &length);
if (!ch)
FAIL("JS_GetTwoByteStringsCharsAndLength failed"); // out of memory
out.assign(ch, ch + length);
}
return true;
}
template<> bool ScriptInterface::FromJSVal<u16>(JSContext* cx, JS::HandleValue v, u16& out)
{
JSAutoRequest rq(cx);
WARN_IF_NOT(v.isNumber(), v);
if (!JS::ToUint16(cx, v, &out))
return false;
return true;
}
bool js_to_number(JSContext *cx, JS::HandleValue v, double *dp) {
if (v.isNumber()) {
*dp = v.toNumber();
return true;
} else {
*dp = 0;
return false;
}
}
template<> bool ScriptInterface::FromJSVal<float>(JSContext* cx, JS::HandleValue v, float& out)
{
JSAutoRequest rq(cx);
double tmp;
WARN_IF_NOT(v.isNumber(), v);
if (!JS::ToNumber(cx, v, &tmp))
return false;
out = tmp;
return true;
}
bool jsval_to_std_string(JSContext *cx, JS::HandleValue v, std::string* ret) {
if(v.isString() || v.isNumber())
{
JSString *tmp = JS::ToString(cx, v);
JSB_PRECONDITION3(tmp, cx, false, "Error processing jsval_to_std_string");
JSStringWrapper str(tmp, cx);
*ret = str.get();
return true;
}
return false;
}
template<> bool ScriptInterface::FromJSVal<std::string>(JSContext* cx, JS::HandleValue v, std::string& out)
{
JSAutoRequest rq(cx);
WARN_IF_NOT(v.isString() || v.isNumber(), v); // allow implicit number conversions
JS::RootedString str(cx, JS::ToString(cx, v));
if (!str)
FAIL("Argument must be convertible to a string");
char* ch = JS_EncodeString(cx, str); // chops off high byte of each char16_t
if (!ch)
FAIL("JS_EncodeString failed"); // out of memory
out.assign(ch, ch + JS_GetStringLength(str));
JS_free(cx, ch);
return true;
}