[Webkit-unassigned] [Bug 81757] New: Web Inspector: add support for a whitelist / suppression list for heap snapshots

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=81757

           Summary: Web Inspector: add support for a whitelist /
                    suppression list for heap snapshots
           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: jochen at chromium.org
                CC: timothy at apple.com, rik at webkit.org, keishi at webkit.org,
                    pmuellr at yahoo.com, joepeck at webkit.org,
                    pfeldman at chromium.org, yurys at chromium.org,
                    bweinstein at apple.com, apavlov at chromium.org,
                    loislo at chromium.org


When manually inspecting a heap snapshot, I'd like to have a way of hiding objects retained by a certain object. Ideally, I'd like to be able to load this information from a file, so I could maintain such a list across several debugging sessions

The use case is as follows: assume your web app has some pointer to the last performed action to implement undo, e.g. window.foo.bar.lastAction_ Now you look at a heap snapshot and figure out after a bit of clicking that a certain object is not a leak, because one of its retaining paths goes through lastAction_. As this is not a leak, you don't want to manually identify all other objects that are retained by this path, but concentrate on stuff retained by different paths. At this point, I'd like to filter out all objects with retaining paths through window.foo.bar.lastAction_

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