internal object[] ConvertArguments(Arguments arguments, ConvertArgsOptions options)
{
if (_parameters.Length == 0)
{
return(null);
}
if (_forceInstance)
{
ExceptionHelper.Throw(new InvalidOperationException());
}
object[] res = null;
int targetCount = _parameters.Length;
for (int i = targetCount; i-- > 0;)
{
var jsValue = arguments?[i] ?? undefined;
var value = convertArgument(i, jsValue, options);
if (value == null && !jsValue.IsNull)
{
return(null);
}
if (res == null)
{
res = new object[targetCount];
}
res[i] = value;
}
return(res);
}
private object convertArgument(int index, JSValue value, ConvertArgsOptions options)
{
if (_paramsConverters?[index] != null)
{
return(_paramsConverters[index].To(value));
}
var strictConversion = options.HasFlag(ConvertArgsOptions.StrictConversion);
var parameterInfo = _parameters[index];
object result = null;
if (value.IsNull && parameterInfo.ParameterType.GetTypeInfo().IsClass)
{
return(null);
}
else if (value.Defined)
{
result = Tools.convertJStoObj(value, parameterInfo.ParameterType, !strictConversion);
if (strictConversion && result == null)
{
if (options.HasFlag(ConvertArgsOptions.ThrowOnError))
{
ExceptionHelper.ThrowTypeError("Unable to convert " + value + " to type " + parameterInfo.ParameterType);
}
if (!options.HasFlag(ConvertArgsOptions.DummyValues))
{
return(null);
}
}
}
else
{
if (parameterInfo.ParameterType.IsAssignableFrom(value.GetType()))
{
return(value);
}
}
if (result == null &&
(options.HasFlag(ConvertArgsOptions.DummyValues) || parameterInfo.Attributes.HasFlag(ParameterAttributes.HasDefault)))
{
result = parameterInfo.DefaultValue;
#if (PORTABLE || NETCORE)
if (result != null && result.GetType().FullName == "System.DBNull")
{
#else
if (result is DBNull)
{
#endif
if (strictConversion && options.HasFlag(ConvertArgsOptions.ThrowOnError))
{
ExceptionHelper.ThrowTypeError("Unable to convert " + value + " to type " + parameterInfo.ParameterType);
}
if (parameterInfo.ParameterType.GetTypeInfo().IsValueType)
{
result = Activator.CreateInstance(parameterInfo.ParameterType);
}
else
{
result = null;
}
}
}
return(result);
}
