Debug breakpoint in Swift Playground?
SwiftXcode6Swift PlaygroundSwift Problem Overview
I'm trying to add a breakpoint in the line # gutter, but no breakpoint is added when I do this in the playground. Is this possible or is there another way to set breakpoints in the playground?
Swift Solutions
Solution 1 - Swift
There's no debugger so you can't add any breakpoints.
Solution 2 - Swift
Matt, I could not enter code in the comments so here is a better view of using a variable on a line by itself to "debug" it.
for index in 1...5 {
dosomething(foo);
foo;
}
Then you can click the eyeball on the right hand side to see a history of foo as it was modified in the loop.
Solution 3 - Swift
If you want to pause execution of a playground to have a peek at what's going on, you can use sleep. The information you can get isn't nearly as granular as what you can get from lldb.
To do this, you'll need to add import Foundation at the top of your playground.
Then, wherever you want to pause execution, you can add this:
sleep(10) // 10 second pause...you can make the number whatever you want
Solution 4 - Swift
I'm just getting my feet wet in Swift, but I think the playground idea is to show the changing state as if you ran in debug and recorded all the variable changes. There's no actual need for a breakpoint as you can see the state at any "point in time". I think it'll take me a while to get used to it, having used a debugger for > 30 years, but should be quite useful for small bits of isolated test code, especially while I'm learning the language.