[Webkit-unassigned] [Bug 132772] New: [Win] Enum type with value zero is compatible with void*, potential cause of crashes.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=132772

           Summary: [Win] Enum type with value zero is compatible with
                    void*, potential cause of crashes.
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: peavo at outlook.com


Using the MSVC compiler, an instance of an enum type with value zero, is compatible with void* (see bug 132683 for a code example).
This has caused crashes on Windows on two occasions (bug 132683, and bug 121001).
This patch tries to prevent these type of crashes by using a type with explicit constructors instead of void*.

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