protected override Expression VisitMemberExpression(MemberExpression memberExpression)
{
var newExpression = VisitExpression(memberExpression.Expression);
if (newExpression != memberExpression.Expression)
{
if (newExpression.Type == typeof(IValueReader))
{
return(_queryModelVisitor.BindMemberToValueReader(memberExpression, newExpression));
}
var member = memberExpression.Member;
var typeInfo = newExpression.Type.GetTypeInfo();
if (typeInfo.IsGenericType &&
typeInfo.GetGenericTypeDefinition() == typeof(IAsyncGrouping <,>))
{
member = typeInfo.GetDeclaredProperty("Key");
}
return(Expression.MakeMemberAccess(newExpression, member));
}
return(memberExpression);
}