foo.cpp

JsErrorCode Stringify(JsValueRef value, ChakraHost* self, const wchar_t** szResult, size_t* sResult)
{
    JsValueType type;
    IfFailRet(JsGetValueType(value, &type));

    switch (type)
    {
        case JsUndefined:
            *szResult = L"undefined";
            *sResult = wcslen(*szResult);
            break;
        case JsNull:
            *szResult = L"null";
            *sResult = wcslen(*szResult);
            break;
        case JsBoolean:
            bool bResult;
            IfFailRet(JsBooleanToBool(value, &bResult));
            *szResult = bResult ? L"true" : L"false";
            *sResult = wcslen(*szResult);
            break;
        case JsString:
            IfFailRet(JsStringToPointer(value, szResult, sResult));
            break;
        case JsNumber:
        case JsObject:
        case JsArray:
        case JsTypedArray:
            JsValueRef resultJSON;
            IfFailRet(self->JsonStringify(value, &resultJSON));
            IfFailRet(JsStringToPointer(resultJSON, szResult, sResult));
            break;
        case JsFunction:
        case JsError:
        case JsSymbol:
        case JsArrayBuffer:
            JsValueRef resultString;
            IfFailRet(JsConvertValueToString(value, &resultString));
            IfFailRet(JsStringToPointer(resultString, szResult, sResult));
            break;
    }

    return JsNoError;
}