If I use scope(failure) with code that should be run if an exception is thrown, how can I set a breakpoint for this code in the debugger?

-- 
Robert M. Münch
http://www.saphirion.com
smarter | better | faster

On 5/21/18 1:00 PM, Robert M. Münch wrote:
> If I use scope(failure) with code that should be run if an exception is thrown, how can I set a breakpoint for this code in the debugger?
> 

I'm not 100% sure but I expect:

scope(failure)
   someCode();

putting a breakpoint on someCode should work.

-Steve

On 2018-05-21 17:24:12 +0000, Steven Schveighoffer said:

> I'm not 100% sure but I expect:
> 
> scope(failure)
>     someCode();
> 
> putting a breakpoint on someCode should work.

When calling a function an then setting the breakpoint there, like in someCode() yes, that should work.

I used code like this:

scope(failure) {
	... several lines of code
}

And for this it seems (maybe I need to check in more detail) that in MSVC, I can set a breakpoint, but the breakpoint is not triggered when an exception is thrown.

-- 
Robert M. Münch
http://www.saphirion.com
smarter | better | faster

On 5/21/18 1:50 PM, Robert M. Münch wrote:
> On 2018-05-21 17:24:12 +0000, Steven Schveighoffer said:
> 
>> I'm not 100% sure but I expect:
>>
>> scope(failure)
>>     someCode();
>>
>> putting a breakpoint on someCode should work.
> 
> When calling a function an then setting the breakpoint there, like in someCode() yes, that should work.
> 
> I used code like this:
> 
> scope(failure) {
>      ... several lines of code
> }
> 
> And for this it seems (maybe I need to check in more detail) that in MSVC, I can set a breakpoint, but the breakpoint is not triggered when an exception is thrown.
> 

Seems like the debugger not understanding D source in that case.

What you could try is:

void breakOnThis()
{
   return; // breakpoint here
}
scope(failure)
{
    breakOnThis();
    ...
}

and then see where it goes when you step out of that function.

-Steve