[Webkit-unassigned] [Bug 69146] New: Web Inspector: debuggerPresentatioModel.linkifyLocation leaks updateAnchor closure instances.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=69146

           Summary: Web Inspector:
                    debuggerPresentatioModel.linkifyLocation leaks
                    updateAnchor closure instances.
           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: loislo 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


In many places we use linkifyLocation function to produce a link node which will updates automatically when the source file was changed on the fly.
Such changes happen when we use pretty print or another operation that changes the source code somehow.

linkifyLocation associates a new instance of updateAnchor closure with the each link node and add the closure to the SourceMappingUpdated event's list.

As result the node<->closure pairs wouldn't be collected until reset the UI and DebuggerPresentationModel

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