public override LambdaExpression VisitValPathPresentExp(ScimFilterParser.ValPathPresentExpContext context)
{
var propertyNameToken = context.FIELD().GetText();
var property = PropertyCache
.GetOrAdd(
typeof(TResource),
type =>
type.GetProperties(BindingFlags.Public | BindingFlags.Instance)
.ToDictionary(pi => pi.Name, pi => pi, StringComparer.OrdinalIgnoreCase))[propertyNameToken];
if (property == null)
{
throw new Exception("eeeerrrooorrr"); // TODO: (DG) proper error handling
}
if (property.GetGetMethod() == null)
{
throw new Exception("error");
}
var argument = Expression.Parameter(typeof(TResource));
var predicate = Expression.Lambda <Func <TResource, bool> >(
Expression.Call(
MethodCache["pr"]
.MakeGenericMethod(typeof(TResource)),
new List <Expression>
{
argument,
Expression.Constant(property)
}),
argument);
return(predicate);
}
public override LambdaExpression VisitValPathPresentExp(ScimFilterParser.ValPathPresentExpContext context)
{
var argument = Expression.Parameter(typeof(TResource));
var attrPathExpression = Visit(context.attrPath());
return(Expression.Lambda <Func <TResource, bool> >(
Expression.Call(
MethodCache["pr"].MakeGenericMethod(attrPathExpression.ReturnType), Expression.Invoke(attrPathExpression, argument)),
argument));
}
