Stack rewind support in the debugger protocol

[Wouter Gazendam]

Hi all,

I don't seem to see any support for rewinding the stack in the debugger protocol (a la JVM's 'Drop to Frame'). Is something like this supported?

Thanks,

Wouter Gazendam

[Ben Noordhuis]

On Thu, Jan 29, 2015 at 9:29 AM, Wouter Gazendam <wou...@ag5.nl> wrote:
> I don't seem to see any support for rewinding the stack in the debugger
> protocol (a la JVM's 'Drop to Frame'). Is something like this supported?

Isn't that the 'continue' request with 'stepaction' == 'out'?

[Wouter Gazendam]

I'd assume that stepping out would not rewind the execution to the beginning of the frame but would complete execution in the current frame and then break.

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Wouter Gazendam
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[Ben Noordhuis]

On Thu, Jan 29, 2015 at 1:16 PM, Wouter Gazendam <wou...@ag5.com> wrote:
> I'd assume that stepping out would not rewind the execution to the beginning
> of the frame but would complete execution in the current frame and then
> break.

I think that's the StepFrame action (which I'm not sure is exposed
through the debugger protocol.)

Maybe consult the source if you want to be sure, the relevant bits are
in src/debug-debugger.js and src/runtime/runtime-debug.cc.

[Yang Guo]

Rewinding to the start of the function works to a certain extend with live edit, but I wouldn't rely on it for anything.