/// <summary>
/// Creates an AnyNode or an AllNode from the given
/// </summary>
/// <param name="state">State of binding.</param>
/// <param name="parent">Parent node to the lambda.</param>
/// <param name="lambdaExpression">Bound Lambda expression.</param>
/// <param name="newRangeVariable">The new range variable being added by this lambda node.</param>
/// <param name="queryTokenKind">Token kind.</param>
/// <returns>A new LambdaNode bound to metadata.</returns>
internal static LambdaNode CreateLambdaNode(
BindingState state,
CollectionNode parent,
SingleValueNode lambdaExpression,
RangeVariable newRangeVariable,
QueryTokenKind queryTokenKind)
{
LambdaNode lambdaNode;
if (queryTokenKind == QueryTokenKind.Any)
{
lambdaNode = new AnyNode(new Collection <RangeVariable>(state.RangeVariables.ToList()), newRangeVariable)
{
Body = lambdaExpression,
Source = parent,
};
}
else
{
Debug.Assert(queryTokenKind == QueryTokenKind.All, "LambdaQueryNodes must be Any or All only.");
lambdaNode = new AllNode(new Collection <RangeVariable>(state.RangeVariables.ToList()), newRangeVariable)
{
Body = lambdaExpression,
Source = parent,
};
}
return(lambdaNode);
}
private string BindAnyNode(AnyNode anyNode)
{
string innerQuery = "exists ( from " + Bind(anyNode.Source) + " " + anyNode.RangeVariables.First().Name;
if (anyNode.Body != null)
{
innerQuery += " where " + Bind(anyNode.Body);
}
return(innerQuery + ")");
}
/// <summary>
/// Visit an AnyNode
/// </summary>
/// <param name="nodeIn">the node to visit</param>
/// <returns>Defined by the implementer</returns>
public virtual T Visit(AnyNode nodeIn)
{
throw new NotImplementedException();
}
