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ExpressionAction.cs
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ExpressionAction.cs
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// Copyright 2007-2008 The Apache Software Foundation.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use
// this file except in compliance with the License. You may obtain a copy of the
// License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software distributed
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
namespace Magnum.StateMachine
{
using System;
using System.Linq.Expressions;
public class ExpressionAction<T> :
EventAction<T>
where T : StateMachine<T>
{
private readonly Action<T> _action;
public ExpressionAction(Expression<Action<T>> expression)
{
Expression = expression;
_action = Expression.Compile();
}
public Expression<Action<T>> Expression { get; private set; }
public void Execute(T instance, Event @event, object parameter)
{
_action(instance);
}
}
public class ExpressionAction<T, TData> :
EventAction<T>
where T : StateMachine<T>
{
private readonly Action<T, TData> _action;
public ExpressionAction(Expression<Action<T, TData>> expression)
{
Expression = expression;
_action = Expression.Compile();
}
public Expression<Action<T, TData>> Expression { get; private set; }
public void Execute(T instance, Event @event, object parameter)
{
_action(instance, (parameter is TData) ? ((TData)parameter) : default(TData));
}
}
}