public SkipTakeExpression(ConstantExpression skipTake, DirectoryExpressionType nodeType) : base(skipTake, nodeType)
{
if (nodeType != DirectoryExpressionType.Take && nodeType != DirectoryExpressionType.Skip)
{
throw new Exception();
}
}
private SkipTakeExpression CreateSkipTake(ConstantExpression expression, DirectoryExpressionType expressionType)
{
if (expression.Type == typeof(int))
{
return(new SkipTakeExpression(expression, expressionType));
}
return(null);
}
private SkipTakeExpression VisitMethod(MethodCallExpression method, DirectoryExpressionType expressionType)
{
var node = VisitMethodCall(method);
if (node.NodeType.Is(expressionType))
{
return(node as SkipTakeExpression);
}
throw new Exception();
}
protected DirectoryExpressionBase(Expression expression, DirectoryExpressionType type)
{
_expression = expression;
_expressionType = type;
}
internal static bool Is(this ExpressionType type, DirectoryExpressionType directoryType)
{
return(type == (ExpressionType)directoryType);
}
protected DirectoryExpressionBase(Expression expression, DirectoryExpressionType type) : base((ExpressionType)type, expression.Type)
{
_expression = expression;
}
public DirectoryExpression(Expression expression, DirectoryExpressionType type) : base(expression, type)
{
_whereClause = new List <WhereExpression>();
}
