internal static bool IsActionImplementation(MethodInfo method)
{
return method.HasAttr<ArgActionMethod>();
}
internal static CommandLineAction Create(MethodInfo actionMethod, List<string> knownAliases)
{
var ret = PropertyInitializer.CreateInstance<CommandLineAction>();
ret.ActionMethod = actionMethod;
ret.Source = actionMethod;
ret.Aliases.Add(actionMethod.Name);
ret.Metadata.AddRange(actionMethod.Attrs<IArgMetadata>().AssertAreAllInstanceOf<ICommandLineActionMetadata>());
ret.IgnoreCase = true;
if (actionMethod.DeclaringType.HasAttr<ArgIgnoreCase>() && actionMethod.DeclaringType.Attr<ArgIgnoreCase>().IgnoreCase == false)
{
ret.IgnoreCase = false;
}
if (actionMethod.HasAttr<ArgIgnoreCase>() && actionMethod.Attr<ArgIgnoreCase>().IgnoreCase == false)
{
ret.IgnoreCase = false;
}
var directPipelineTarget = (from p in actionMethod.GetParameters() where p.HasAttr<ArgPipelineTarget>() select p).SingleOrDefault();
if (directPipelineTarget != null)
{
if(directPipelineTarget.Attr<ArgPipelineTarget>().PipelineOnly == false && ArgRevivers.CanRevive(directPipelineTarget.ParameterType) == false)
{
throw new InvalidArgDefinitionException("Method "+actionMethod.DeclaringType.FullName+"."+actionMethod.Name+" has parameter "+directPipelineTarget.Name+" of type "+directPipelineTarget.ParameterType.FullName+" which has set PipelineOnly to false, but has no reviver");
}
ret.Arguments.AddRange(actionMethod.GetParameters().Where(p => CommandLineArgument.IsArgument(p)).Select(p => CommandLineArgument.Create(p)));
foreach (var arg in (ret.Arguments).Where(a => a.Position >= 0))
{
arg.Position++; // Since position 0 is reserved for the action specifier
}
}
else
{
if (actionMethod.GetParameters().Length == 1 && ArgRevivers.CanRevive(actionMethod.GetParameters()[0].ParameterType) == false)
{
ret.Arguments.AddRange(actionMethod.GetParameters()[0].ParameterType.GetProperties(BindingFlags.Public | BindingFlags.Instance).Where(p => CommandLineArgument.IsArgument(p)).Select(p => CommandLineArgument.Create(p, knownAliases)));
}
else if (actionMethod.GetParameters().Length > 0 && actionMethod.GetParameters().Where(p => ArgRevivers.CanRevive(p.ParameterType) == false).Count() == 0)
{
ret.Arguments.AddRange(actionMethod.GetParameters().Where(p => CommandLineArgument.IsArgument(p)).Select(p => CommandLineArgument.Create(p)));
foreach (var arg in (ret.Arguments).Where(a => a.Position >= 0))
{
arg.Position++; // Since position 0 is reserved for the action specifier
}
}
else if (actionMethod.GetParameters().Length > 0)
{
throw new InvalidArgDefinitionException("Your action method contains a parameter that cannot be revived on its own. That is only valid if the non-revivable parameter is the only parameter. In that case, the properties of that parameter type will be used.");
}
}
return ret;
}