private void AddSwitch(string currentParameter, ParameterBindingResult bindingResult)
{
bindingResult.ConstantValue = true;
AddBoundParameter(null, currentParameter, bindingResult);
}
private void AddBoundParameter(CommandParameterAst parameter, string parameterName, ParameterBindingResult bindingResult)
{
if (BoundParameters.ContainsKey(parameterName))
{
AddDuplicateParameterBindingException(parameter);
}
else
{
BoundParameters.Add(parameterName, bindingResult);
}
}
private static void ResetCurrentParameter(ref CommandParameterAst currentParameter, ref ParameterBindingResult bindingResult)
{
currentParameter = null;
bindingResult = new ParameterBindingResult();
}
private void CreateBindingResultForSyntacticBind(CommandAst commandAst)
{
bool foundCommand = false;
CommandParameterAst currentParameter = null;
int position = 0;
ParameterBindingResult bindingResult = new ParameterBindingResult();
foreach (CommandElementAst commandElement in commandAst.CommandElements)
{
// Skip the command name
if (!foundCommand)
{
foundCommand = true;
continue;
}
CommandParameterAst parameter = commandElement as CommandParameterAst;
if (parameter != null)
{
if (currentParameter != null)
{
// Assume it was a switch
AddSwitch(currentParameter.ParameterName, bindingResult);
ResetCurrentParameter(ref currentParameter, ref bindingResult);
}
// If this is an actual parameter, get its name.
string parameterName = parameter.ParameterName;
bindingResult.Value = parameter;
// If it's a parameter with argument, add them both to the dictionary
if (parameter.Argument != null)
{
bindingResult.Value = parameter.Argument;
AddBoundParameter(parameter, parameterName, bindingResult);
ResetCurrentParameter(ref currentParameter, ref bindingResult);
}
// Otherwise, it's just a parameter and the argument is to follow.
else
{
// Store our current parameter
currentParameter = parameter;
}
}
else
{
// This isn't a parameter, it's a value for the previous parameter
if (currentParameter != null)
{
bindingResult.Value = commandElement;
AddBoundParameter(currentParameter, currentParameter.ParameterName, bindingResult);
}
else
{
// Assume positional
bindingResult.Value = commandElement;
AddBoundParameter(null, position.ToString(CultureInfo.InvariantCulture), bindingResult);
position++;
}
ResetCurrentParameter(ref currentParameter, ref bindingResult);
}
}
// Catch any hanging parameters at the end of the command
if (currentParameter != null)
{
// Assume it was a switch
AddSwitch(currentParameter.ParameterName, bindingResult);
}
}
