[Webkit-unassigned] [Bug 137565] New: Avoid defaulting to capture-by-value for C++11 lambdas in WebCore

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=137565

           Summary: Avoid defaulting to capture-by-value for C++11 lambdas
                    in WebCore
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: zandobersek at gmail.com


Using the default capture-by-value should be avoided as it can produce various negative side effects, e.g. capturing the this pointer when a member variable is used inside the lambda, and thus failing to make the lambda object self-contained.

It also requires the author to explicitly list the variables she intends to use inside the lambda, providing one additional checkpoint at ensuring that the correct variables are used.

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