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//
// SequenceGenerator.cs
//
// Authors:
// Alexander Chebaturkin (chebaturkin@gmail.com)
//
// Copyright (C) 2011 Alexander Chebaturkin
//
// 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.Collections;
using System.Collections.Generic;
using Mono.CodeContracts.Static.DataStructures;
namespace Mono.CodeContracts.Static.Analysis.StackAnalysis {
class SequenceGenerator : IIndexable<int>, IEnumerable<int> {
private readonly short count;
private readonly short from;
public SequenceGenerator (int from, int count)
{
this.from = checked((short) from);
this.count = checked((short) count);
}
#region Implementation of IIndexable<int>
public int Count {
get { return this.count; }
}
public int this [int index] {
get { return this.from + index; }
}
#endregion
#region Implementation of IEnumerable
public IEnumerator<int> GetEnumerator ()
{
for (int i = 0; i < this.count; i++)
yield return this [i];
}
IEnumerator IEnumerable.GetEnumerator ()
{
return GetEnumerator ();
}
#endregion
}
}
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