protected BlockCommand UpdateBlock(BlockCommand block, IList <Expression> commands)
{
if (block.Commands != commands)
{
return(new BlockCommand(commands));
}
return(block);
}
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 (!Compare(x.Commands[i], y.Commands[i]))
{
return(false);
}
}
return(true);
}
protected override Expression VisitBlock(BlockCommand block)
{
return(MakeSequence(VisitExpressionList(block.Commands)));
}
protected virtual Expression VisitBlock(BlockCommand block)
{
ReadOnlyCollection <Expression> commands = VisitExpressionList(block.Commands);
return(UpdateBlock(block, commands));
}
protected override Expression VisitBlock(BlockCommand block)
{
throw new NotSupportedException();
}