public MethodHandler(bool confirmationRequired, NormalizedPath n, object instance, MethodInfo method, ParallelCommandMode parallelMode, ParameterInfo[] parameters, Func <bool> enabled)
{
ConfirmationRequired = confirmationRequired;
UniqueName = n;
_instance = instance;
_method = method;
_parameters = parameters;
PayloadSignature = parameters.Length == 1
? null
: '(' + parameters.Skip(1).Select(p => p.Name).Concatenate() + ')';
_enabled = enabled;
ParallelMode = parallelMode;
}
/// <summary>
/// Registers a method that can be called as a command.
/// </summary>
/// <param name="confirmationRequired">True to confirm the command before its execution.</param>
/// <param name="uniqueName">The unique command name.</param>
/// <param name="o">The object instance that holds the method.</param>
/// <param name="method">The method.</param>
/// <param name="parallelMode">Parallel command mode.</param>
/// <param name="enabled">A companion function that knows how to compute whether the command is enabled or not.</param>
/// <returns>The registered command handler.</returns>
public ICommandHandler Register(bool confirmationRequired, NormalizedPath uniqueName, object o, MethodInfo method, ParallelCommandMode parallelMode, Func <bool> enabled = null)
{
if (_commands.ContainsKey(uniqueName))
{
throw new ArgumentException($"Already registered command '{uniqueName}'.", nameof(uniqueName));
}
var parameters = method.GetParameters();
if (parameters.Length == 0 || !typeof(IActivityMonitor).IsAssignableFrom(parameters[0].ParameterType))
{
throw new ArgumentException($"Method {method} for command '{uniqueName}' must have a first IActivityMonitor parameter.", nameof(method));
}
var h = new MethodHandler(confirmationRequired, uniqueName, o, method, parallelMode, parameters, enabled);
_commands.Add(uniqueName, h);
return(h);
}
