/// <summary>
/// Updates the block.
/// </summary>
/// <param name="block">The block.</param>
/// <param name="commands">The commands.</param>
/// <returns></returns>
protected BlockCommand UpdateBlock(BlockCommand block, IList <Expression> commands)
{
if (block.Commands != commands)
{
return(new BlockCommand(commands));
}
return(block);
}
/// <summary>
/// Compares the block.
/// </summary>
/// <param name="x">The x.</param>
/// <param name="y">The y.</param>
/// <returns></returns>
protected virtual bool CompareBlock(BlockCommand x, BlockCommand y)
{
if (x.Commands.Count != y.Commands.Count)
{
return(false);
}
for (int i = 0, n = x.Commands.Count; i < n; i++)
{
if (!this.Compare(x.Commands[i], y.Commands[i]))
{
return(false);
}
}
return(true);
}
/// <summary>
/// Visits the block.
/// </summary>
/// <param name="block">The block.</param>
/// <returns></returns>
protected virtual Expression VisitBlock(BlockCommand block)
{
var commands = this.VisitExpressionList(block.Commands);
return(this.UpdateBlock(block, commands));
}
