[Webkit-unassigned] [Bug 45553] New: Make FileEntry and DirectoryEntry methods accessible via Entry instance

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=45553

           Summary: Make FileEntry and DirectoryEntry methods accessible
                    via Entry instance
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Mac OS X 10.5
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: kinuko at chromium.org
                CC: fishd at chromium.org, dumi at chromium.org,
                    ericu at chromium.org


Make FileEntry and DirectoryEntry methods accessible via Entry instance.

Usually user script obtains an Entry (either file or directory) via callbacks as an 'Entry' instance, but since there's no concept of 'cast' in Javascript the script cannot call FileEntry- or DirectoryEntry-specific methods on the returned 'Entry' instance.

Probably we could add some tricks in the binding code, or the quickest short-term solution would be:
1. (in idl) adding FileEntry- and DirectoryEntry-specific methods to Entry
2. (in c++ impl) making the methods virtual
3. throws an exception if Entry's base implementation is called.

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