iSwift fails to convert valid Objective-C code to Swift

[ianhlavats]

When attempting to convert this simple if statement it results in an error message:

if ([someObject someValue] != nil) {

}

Am I doing something wrong?

[drkameleon]

Ian, Hi!

What you entered is valid objective-c code. But is it a valid objective-c program?

What I'm saying is: would that compile in Xcode? Think about it. ;-)

And the simple answer is: No, it wouldn't. It is valid code, but not a valid program. iSwift processes and "compiles" programs as a whole, not just a single statement (which wouldn't qualify as a valid program anyway).

if you did it like this (like a correct Objective-C program) though, it would work:

@implementation someClass
    - (void)someFunc {
           if ([someObject someValue] != nil) {

          }
    }
@end

Please let me know in case anything is unclear :)

[ianhlavats]

Thanks for the reply. I thought I was missing something obvious. ;)

You may want to add support for converting code fragments if it's not too much trouble! It would save a lot of time for users like me.

Regards, Ian

[drkameleon]

Well, Glad we sorted this one out! :)

As for your suggestion, to be honest, I've thought of it (to avoid mis-interpretations of what the app does, like this one), but given that it's built like a regular compiler-parser and based on the official (as unofficial and in-existent as it may be lol) Objective-C specifications (or at least trying to, as much as possible), this could make it a bit messy.

In any case, I'll add a "recheck" tag here - to revisit the issue at some later point, and not forget that it may still confuse people.

Thanks a lot for the input - keep it coming! ;-)

[drkameleon]

Issue moved here:

https://github.com/drkameleon/iswift/issues/164