I recommend reading https://developer.mozilla.org/en-US/docs/Tools/Debugger-API or js/src/doc/Debugger/ for more information.
On Tue, Jan 20, 2015 at 1:29 PM, Nick Fitzgerald <nfitzger...@mozilla.com> wrote: > βOn Mon, Jan 19, 2015 at 12:36 PM, Joshua Cranmer [image: π§] < > pidgeo...@gmail.com> wrote: > >> Getting good code coverage (line and branch coverage) ultimately requires >> fine-grained instrumentation (ideally bytecode-level) not presented by the >> current Debugger. >> > > > βI think you can get fine-grained enough data with the existing Debugger > API by doing the following: > > * Adding all existing globals as debuggees: `Debugger.prototype. > addAllGlobalsAsDebuggees` > > * Adding new globals as debuggees: have your Debugger's onNewGlobal hook > to always add the new global as a debuggee. > > * For each `Debugger.Script` (on initialization via > `Debugger.prototype.findScripts` and on new scripts in the future via the > `onNewScript` hook): > > *** Use `Debugger.Script.prototype.getAllOffsets`β to get all byte code > offsets which are entry points to each line in the script > > *** Set a breakpoint on each of those offsets which, when hit, records > that the offset's line was executed > > _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
