IDescribesPredicate GetPredicateAndValue(AgiilQueryParser.ElementtestContext context)
{
var predicate = context.predicate().GetText();
var value = valueVisitor.Visit(context.value());
return(new PredicateAndValue {
PredicateText = predicate,
Value = value,
});
}
public override Function VisitElementtest([NotNull] AgiilQueryParser.ElementtestContext context)
{
var functionContext = context.functioninvocation();
if (functionContext == null)
{
return(null);
}
return(new PredicateFunction {
FunctionName = GetFunctionName(functionContext),
Parameters = GetParameters(functionContext),
Inverted = context.NOT() != null,
});
}
/// <summary>
/// Visit a parse tree produced by <see cref="AgiilQueryParser.elementtest"/>.
/// <para>
/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
/// on <paramref name="context"/>.
/// </para>
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public virtual Result VisitElementtest([NotNull] AgiilQueryParser.ElementtestContext context)
{
return(VisitChildren(context));
}
IDescribesPredicate GetPredicateFunction(AgiilQueryParser.ElementtestContext context)
{
return(functionVisitor.Visit(context) as PredicateFunction);
}
IDescribesPredicate GetPredicateDescription(AgiilQueryParser.ElementtestContext context)
{
return(GetPredicateFunction(context) ?? GetPredicateAndValue(context));
}
