How does objective-c know what is going to be returned by an anonymous object?

Posted by Jeffrey Aylesworth on Stack Overflow See other posts from Stack Overflow or by Jeffrey Aylesworth
Published on 2010-04-30T01:21:24Z Indexed on 2010/04/30 1:27 UTC
Read the original article Hit count: 276

Filed under:

objective-c

|

anonymous-types

- (void) doSomething: (id)with {
    int a;
    a = [with doSomething];
}

How does the compiler know what type [with doSomething] is going to return? Does it assume an int, since that's what I'm assigning to?

© Stack Overflow or respective owner

Related posts about objective-c

Blocking access to websites with objective-C / root privileges in objective-C

as seen on Stack Overflow - Search for 'Stack Overflow'
I am writing a program in Objective-C (XCode 3.2, on Snow Leopard) that is capable of either selectively blocking certain sites for a duration or only allow certain sites (and thus block all others) for a duration. The reasoning behind this program is rather simple. I tend to get distracted when I… >>> More
Objective-C with some Objective-C++, calling a normal c++ method "referenced from" problem

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I made an Objective-C project for the iPhone. I had only one cpp class, the soundEngine taken from some Apple demo. Now I'm trying to merge OpenFeint which is coded in Objective-C++. As soon as I drop in the code without even referring to it from my code, when I hit Build, my Objective-C code… >>> More
Add an objective @property attribute in objective-c

as seen on Stack Overflow - Search for 'Stack Overflow'
Does anyone know of a way to add additional attribute types to the @property keyword without modifying the compiler? Or can anyone think of another way to genericize getter/setter creation? Basically, I have a lot of cases in a recent project where it's handy for objects to lazily instantiate their… >>> More
ObjectiveC Syntax for Specifying Protocol Name in Method Argument

as seen on Stack Overflow - Search for 'Stack Overflow'
What's the ObjectiveC syntax for specifying a protocol as an argument in a method? Say I have 2 protocols, MyProtocol and MyProtocolCB: @protocol MyProtocolCB <NSObject> - (void) func; @end @protocol MyProtocol <NSObject> - (void) register:(MyProtocolCB*) cb; @end I'm receiving this… >>> More
ObjectiveC builtin template system ?

as seen on Stack Overflow - Search for 'Stack Overflow'
I am developing an iPhone application and I use HTML to display formatted text. I often display the same webpage, but with a different content. I would like to use a template HTML file, and then fill it with my diffent values. I wonder if ObjectiveC has a template system similar to ERB in Ruby. That… >>> More

Related posts about anonymous-types

Cannot iterate of a collection of Anonymous Types created from a LINQ Query in VB.NET

as seen on Stack Overflow - Search for 'Stack Overflow'
Ok everyone, I must be missing something here. Every LINQ example I have seen for VB.NET anonymous types claims I can do something like this: Dim Info As EnumerableRowCollection = pDataSet.Tables(0).AsEnumerable Dim Infos = From a In Info _ … >>> More
Declaring Anonymous Types in VB

as seen on Internet.com - Search for 'Internet.com'
Using an anonymous type in VB, which is essential for technologies like LINQ, means that the compiler will generate a class for you based on context and named initializers saving you time and effort. To learn more read on. >>> More
Sorting Anonymous Types

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a question of how to sort an anonymous type. Using Linq2SQL I have the following query, which returns a list of submissions: var submissions = EventSubmissions .Where(s => s.EventId.Equals(eventId)); Consider the following interface (somewhat simplyfied): public interface IQuerySorter { … >>> More
MVC using LINQ? - Can't return anonymous types

as seen on Stack Overflow - Search for 'Stack Overflow'
I'd like to implement MVC while using LINQ (specifically, LINQ-to-entities). The way I would do this is have the Controller generate (or call something which generates) the result-set using LINQ, then return that to the View to display the data. The problem is, if I do: return (from o in myTable… >>> More
C#/.NET Little Wonders: The Joy of Anonymous Types

as seen on Geeks with Blogs - Search for 'Geeks with Blogs'
Once again, in this series of posts I look at the parts of the .NET Framework that may seem trivial, but can help improve your code by making it easier to write and maintain. The index of all my past little wonders posts can be found here. In the .NET 3 Framework, Microsoft introduced the concept… >>> More