[Webkit-unassigned] [Bug 70068] New: Reflective Arguments retrieval should be hardened for the possibility of inlining

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=70068

           Summary: Reflective Arguments retrieval should be hardened for
                    the possibility of inlining
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: fpizlo at apple.com


Currently, to retrieve the Arguments of a function on the call stack, we assume that the call stack contains an explicit entry for that function.  This won't be the case if the function is inlined.  Call stack walking for the purpose of JS-visible reflection should be able to rematerialize call frames of inlined functions, and arguments retrieval should be hardened for this possibility.

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