[Webkit-unassigned] [Bug 30913] New: Web Inspector: hover over JS "things" in source and see their values

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=30913

           Summary: Web Inspector: hover over JS "things" in source and
                    see their values
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Web Inspector
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: pmuellr at yahoo.com
                CC: timothy at hatcher.name, rik at webkit.org,
                    casey.hattori at gmail.com, pmuellr at yahoo.com,
                    joepeck at webkit.org, pfeldman at chromium.org,
                    bweinstein at apple.com


Spawned from: https://twitter.com/siracusa/status/5259300238

   The WebKit Inspector is getting a lot better, 
   but I still really miss the ability to mouse-over 
   JavaScript variables and see their values.

Some discussion on IRC re: what the "things" are.  Expressions?  Or just
variables?  Expressions which are property accesses of the form "x.y.z"?  Do we
need to worry about getters?

>From IRC, xenon says: "we woud likely need to limit it to properties, no
functions and not getters", which I think means things that match "x.y.z", but
am unsure how we detect getters.  Am thinking supporting getters, by not doing
anything special with them, is probably ok - most getters are likely
side-effect free, or relatively so.

Also mentioned on IRC was that the new API caretRangeFromPoint() will make this
easier to implement.

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