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// Flexpressions
// Copyright © 2012 Andrew Rissing
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
// of the Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq.Expressions;
using Flexpressions.Interfaces;
namespace Flexpressions
{
/// <summary>
/// Wraps an <see cref="Expression"/> to unify how Flexpression objects are treated with <see cref="Expression"/>s.
/// </summary>
internal sealed class ExpressionWrapper : IExpressionWrapper
{
/// <summary>
/// Initializes a new instance of the <see cref="ExpressionWrapper" /> class.
/// </summary>
/// <param name="expression">The <see cref="Expression"/> to wrap.</param>
/// <exception cref="ArgumentNullException">When <paramref name="expression"/> is null, the exception is thrown.</exception>
public ExpressionWrapper(Expression expression)
{
Debug.Assert((expression != null), "The expression argument cannot be null.");
this.expression = expression;
}
/// <summary>
/// Converts the current instance into an <see cref="Expression"/>.
/// </summary>
/// <param name="trailingExpressions">The <see cref="Expression"/>s provided will throw an exception if non-null.</param>
/// <returns>The <see cref="Expression"/> representing the current instance.</returns>
/// <exception cref="ArgumentException">When <paramref name="trailingExpressions"/> is not null, the exception is thrown.</exception>
public Expression CreateExpression(IEnumerable<Expression> trailingExpressions = null)
{
Debug.Assert((trailingExpressions == null), "The trailingExpressions argument must be null.");
return this.expression;
}
private readonly Expression expression;
}
}
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Since I've begun my profession as a software developer, I've learned one important fact - change is inevitable. Requirements change, code changes, and life changes.
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