internal virtual Expression VisitResourceSetExpression(ResourceSetExpression rse)
{
Expression expression = Visit(rse.Source);
if (expression != rse.Source)
{
rse = new ResourceSetExpression(rse.Type, expression, rse.MemberExpression, rse.ResourceType, rse.ExpandPaths, rse.CountOption, rse.CustomQueryOptions, rse.Projection);
}
return(rse);
}
internal void OverrideInputReference(ResourceSetExpression newInput)
{
InputReferenceExpression inputRef = newInput.inputRef;
if (inputRef != null)
{
base.inputRef = inputRef;
inputRef.OverrideTarget(this);
}
}
internal void VisitQueryOptions(ResourceExpression re)
{
if (!re.HasQueryOptions)
{
return;
}
ResourceSetExpression resourceSetExpression = re as ResourceSetExpression;
if (resourceSetExpression != null)
{
IEnumerator enumerator = resourceSetExpression.SequenceQueryOptions.GetEnumerator();
while (enumerator.MoveNext())
{
Expression expression = (Expression)enumerator.Current;
switch (expression.NodeType)
{
case (ExpressionType)10009:
VisitQueryOptionExpression((RequestOptionsQueryOptionExpression)expression);
break;
case (ExpressionType)10010:
VisitQueryOptionExpression((OperationContextQueryOptionExpression)expression);
break;
case (ExpressionType)10011:
VisitQueryOptionExpression((EntityResolverQueryOptionExpression)expression);
break;
case (ExpressionType)10003:
VisitQueryOptionExpression((TakeQueryOptionExpression)expression);
break;
case (ExpressionType)10006:
VisitQueryOptionExpression((FilterQueryOptionExpression)expression);
break;
}
}
}
if (re.Projection != null && re.Projection.Paths.Count > 0)
{
Projection = re.Projection;
SelectColumns = re.Projection.Paths;
}
if (re.CustomQueryOptions.Count > 0)
{
VisitCustomQueryOptions(re.CustomQueryOptions);
}
}
internal override Expression VisitResourceSetExpression(ResourceSetExpression rse)
{
VisitQueryOptions(rse);
return(rse);
}
#pragma warning restore 612, 618
internal void OverrideTarget(ResourceSetExpression newTarget)
{
target = newTarget;
}
internal override Expression VisitMemberAccess(MemberExpression m)
{
if (inputSet == null || !inputSet.HasTransparentScope)
{
return(base.VisitMemberAccess(m));
}
ParameterExpression parameterExpression = null;
Stack <PropertyInfo> stack = new Stack <PropertyInfo>();
MemberExpression memberExpression = m;
while (memberExpression != null && memberExpression.Member.MemberType == MemberTypes.Property && memberExpression.Expression != null)
{
stack.Push((PropertyInfo)memberExpression.Member);
if (memberExpression.Expression.NodeType == ExpressionType.Parameter)
{
parameterExpression = (ParameterExpression)memberExpression.Expression;
}
memberExpression = (memberExpression.Expression as MemberExpression);
}
if (parameterExpression != inputParameter || stack.Count == 0)
{
return(m);
}
ResourceExpression resource = input;
ResourceSetExpression resourceSetExpression = inputSet;
bool flag = false;
while (stack.Count > 0 && resourceSetExpression != null && resourceSetExpression.HasTransparentScope)
{
PropertyInfo propertyInfo = stack.Peek();
if (propertyInfo.Name.Equals(resourceSetExpression.TransparentScope.Accessor, StringComparison.Ordinal))
{
resource = resourceSetExpression;
stack.Pop();
flag = true;
continue;
}
if (!resourceSetExpression.TransparentScope.SourceAccessors.TryGetValue(propertyInfo.Name, out Expression value))
{
break;
}
flag = true;
stack.Pop();
InputReferenceExpression inputReferenceExpression = value as InputReferenceExpression;
if (inputReferenceExpression == null)
{
resourceSetExpression = (value as ResourceSetExpression);
if (resourceSetExpression == null || !resourceSetExpression.HasTransparentScope)
{
resource = (ResourceExpression)value;
}
}
else
{
resourceSetExpression = (inputReferenceExpression.Target as ResourceSetExpression);
resource = resourceSetExpression;
}
}
if (!flag)
{
return(m);
}
Expression expression = CreateReference(resource);
while (stack.Count > 0)
{
expression = Expression.Property(expression, stack.Pop());
}
return(expression);
}
private InputBinder(ResourceExpression resource, ParameterExpression setReferenceParam)
{
input = resource;
inputSet = (resource as ResourceSetExpression);
inputParameter = setReferenceParam;
}
