/// <summary>
/// Extracts up the paramters specified in <see cref="Parameters"/> from <paramref name="arguments"/>
/// and ddds the necessary properties to the call stack's target properties.
/// </summary>
/// <param name="arguments">The arguments being passed in to the this target</param>
/// <param name="callStack">The call stack where the properties will be placed</param>
/// <exception cref="ArgumentException">If one of the non-defaulted parameters is not satisfied by an argument.</exception>
private void PrepareArguments(IList <CallArgument> arguments, TargetCallStack callStack)
{
if (this.Parameters == null || !this.Parameters.Parameters.Any())
{
return;
}
var accessor = new PropertyAccessor(this.Project, callStack);
var matchedProperties = new HashSet <String>();
foreach (var param in this.Parameters.Parameters)
{
if (matchedProperties.Contains(param.PropertyName))
{
throw new BuildException(String.Format(@"Paramter ""{0}"" was declared more than once", param.PropertyName));
}
matchedProperties.Add(param.PropertyName);
CallArgument arg = null;
if (arguments != null)
{
arg = arguments.FirstOrDefault(a => a.PropertyName.Equals(param.PropertyName));
}
if (arg == null && param.DefaultValue != null)
{
accessor.Set(param.PropertyName, param.DefaultValue, PropertyScope.Target, false, true);
}
else if (arg != null)
{
if (arguments.Count(a => a.PropertyName.Equals(arg.PropertyName)) > 1)
{
throw new ArgumentException(String.Format(@"Argument ""{0}"" was specified more than once.", param.PropertyName));
}
accessor.Set(param.PropertyName, arg.PropertyValue, PropertyScope.Target, false, true);
}
else
{
throw new ArgumentException(String.Format(@"Target ""{0}"" requires parameter ""{1}"" but it was not provided and has no default.", this.Name, param.PropertyName));
}
}
}