ericentin / objc-eval

Via gcc and xcode, compile simple objective-c code provided as an NSString at runtime, and execute it within the context of the same, running, program.

objc-eval

objc-eval is ruby-like eval ("eval? what's that?!" read this) for objective-c. Is it a good idea? I don't know. If you have to ask, it's probably not. It will, however, satisfy my (morbid) curiosity about whether or not it's possible. It carries along all the usual security concerns of any language's "eval." Make sure you trust the source of the code that is about to be compiled and executed with whatever privileges the program you used objc-eval in has.

Usage

Add to your project as you would any framework. You can either asynchronously evaluate with a delegate, or synchronously evaluate. Did I mention how stupid this is yet?

Example

OEEvaluation *evaluation = [OEEvaluation evaluationWithCode:@"return @\"Hello World!\";" delegate:nil]; NSLog([evaluation evaluateSynchronously]);

objc-eval's Issues

Remove xcode from the process

Build via gcc and a single source file directly -- should save some time compared to xcodebuild.

Possible to reference outside-objects?

Hi there -- I know you haven't worked on this in 2 years, but it's exactly what I'm looking for! Is it possible say to reference objects that are outside of scope of the eval'd code, within the NSString? Essentially like Javascript:

var x = 3;
eval('x = 4');
alert(x); // 4

Make it more robust

Probably have to decide what this means before I can progress any further.