Debugger.jl, @bp does not work

package
#1

I get an error when I try to debug a Julia file from REPL as follows.
The source file main.jl

# main.jl
using Debugger
function my_add(a::Int, b::Int)
     @bp        # want to stop here 
     c = a + b  
     return c
end 

Debug in REPL mode as follows.

> using Debugger
> include("main.jl")
> @run my_add(1, 2)

Hower, Julia does not stop at the break point. The other functions work very well. Do I use @bp in a wrong way?

By the way, Debugger.jl is pretty cool! The output in REPL mode is very clear and beautiful. Congratulations!

#2

This is sort of a bug but will only happen if you have @bp as the very first thing in the very first function you run (and then you might as well do @enter).

For example:

julia> function my_add(a::Int, b::Int)
           @bp        # want to stop here
           c = a + b
           return c
       end
my_add (generic function with 1 method)

julia> f(a, b) = my_add(a, b)
f (generic function with 1 method)

julia> @run f(1, 2)
Hit breakpoint:
In my_add(a, b) at REPL[25]:2
●2      @bp        # want to stop here
>3      c = a + b
 4      return c
 5  end

About to run: (+)(1, 2)
1|debug> 

I’ll fix it though.

1 Like
#3

I am working on a big project and there are a lot of Julia files. Thus, it is convenient to set the break point in this way.

@kristoffer.carlsson Thank you so much for your excellent work on Debugger.jl. It must be the biggest news in Julia community after the release of Julia 1.0. Congratulations!

#4

Why not set a breakpoint on my_add then (with breakpoint(my_add))?

#5

It does not stop at the line of @bp. Waiting for the integration of Juno and the debug function. Thanks for your work!

#6

True, will fix that asap. I’d suggest setting normal breakpoints for now using the GUI.

2 Likes
#7

Is there some documentation for the debugger in Juno? I didn’t realize that graphical breakpoints work

#8

Not really, but [ANN] Juno 0.8 provides a short overview over what you can do. I’ll write more comprehensive docs once I find some time and motivation for that…

1 Like
#9

This actually works fine, provided you qualify @bp properly and don’t have it as the first line in your function:

So yeah, this isn’t really a priority.