// KnownFunctions
private static Func <IDocumentFilterBuilder, object> NotInvocation(FuncFilterQuerySyntaxVisitor visitor, InvocationQuerySyntaxNode node)
{
// not(condition) --> f.Not(condition)
var condition = visitor.Visit(node.Arguments[0]);
return(f => f.Not(condition(f)));
}
public static Func <IDocumentFilterBuilder, object> CreateFilterExpression(InvocationQuerySyntaxNode node)
{
var visitor = new FuncFilterQuerySyntaxVisitor();
var filterBody = visitor.Visit(node);
return(filterBody);
}
private static Func <IDocumentFilterBuilder, object> MatchInvocation(FuncFilterQuerySyntaxVisitor visitor, InvocationQuerySyntaxNode node)
{
// match(arrayProperty, filter) --> f.Match("arrayProperty", filter(f))
var arrayProperty = node.Arguments[0].AsIdentifierName();
var filter = visitor.Visit(node.Arguments[1]);
return(f => f.Match(arrayProperty, filter(f)));
}
private static Func <IDocumentFilterBuilder, object> CreateSizeFilterForArrayProperty(FuncFilterQuerySyntaxVisitor visitor, InvocationQuerySyntaxNode node, Func <IDocumentFilterBuilder, string, int, object> filter)
{
// filter(arrayProperty, value) --> filter("arrayProperty", value)
var arrayProperty = node.Arguments[0].AsIdentifierName();
var value = visitor.Visit(node.Arguments[1]);
return(f => filter(f, arrayProperty, (int)value(f)));
}
private static Func <IDocumentFilterBuilder, object> LteInvocation(FuncFilterQuerySyntaxVisitor visitor, InvocationQuerySyntaxNode node)
{
// lte(property, value) --> f.Lte("property", value)
var property = node.Arguments[0].AsIdentifierName();
var value = visitor.Visit(node.Arguments[1]);
return(f => f.Lte(property, value(f)));
}