Category talk:Wren-debug: Difference between revisions

At present debugging a Wren script consists of strategically placing one or more ''System.print'' statements in your code and examining the output. This tends to be a tedious approach since, if you want to (say) print out the values of two variables and label them, you need to do something like this:

 

var myvar2 = "forty two"

System.print(["myvar1 = ", myvar, "myvar2 = ", myvar2])</syntaxhighlight>

Now there is ongoing work on creating a debugger for Wren though the current indications are that this is not going to be ready for use any time soon. Whilst there are obvious limitations in what can be done solely from Wren code (as we don't have reflection either), the aim of this module is to try and provide a more structured approach to debugging with the tools we do have. The above code for example could be replaced by this:

 

 

var myvar1 = 42

 

Moreover, debugging can be turned off (it would be 'on' by default when you imported the module) or re-enabled using the following simple statements:

//....

Debug.off

==Source code==

 

 

import "./check" for Check