Espresso Add debugger support to ND version

When you build the ND version again, you may also want to add this change to JsEngine.NativeMethods: https://github.com/dpwhittaker/Espresso/commit/53388e36705c8dc7d2dacc88b26c88c017644130#diff-5d67ff4aeda70590cede90599ce6f971

This allowed me to add --inspect as a node parameter and connect the chrome debugger to javascript in initial testing.

If there is another way to do this, let me know.

Sep 06 '17 15:09 dpwhittaker

Wonderful! I will test it.

Sep 06 '17 17:09 prepare

EARLY preview

see https://github.com/prepare/Espresso/commit/1436b5665553175120d7416c2ecda83f1531af8d

for latest pre-built binary (espr_nd) , on win64, VS2017

see https://github.com/prepare/espresso_release_tmp

espr_nd_debug1

pic 1: add --inspect before our hello.espr module

espr_nd_debug2

pic 2: epresso-nd starts with --inspect

espr_nd_debug3

pic 3: debugger (chrome) attached

Sep 07 '17 01:09 prepare

I plan to review original's node-inspector (js version) and figure out how to wrap it.

Sep 07 '17 01:09 prepare

@prepare's note:

from https://chromedevtools.github.io/devtools-protocol/

... your application can discover available pages by requesting: http://localhost:9222/json and getting a JSON object with information about inspectable pages along with the WebSocket addresses that you could use in order to start instrumenting them. ...

espr_nd_debug4 pic 1: with chrome , goto http://localhost:9222/json

espr_nd_debug6 pic 2: get debug info, copy it

espr_nd_debug7 pic 3: paste to another page, the chrome debugger will attach the debug session

about debugger-protocol see: https://chromium.googlesource.com/v8/v8/+/master/src/inspector/js_protocol.json

Sep 07 '17 15:09 prepare