[Webkit-unassigned] [Bug 158294] New: Refactor showModalDialog handling in JSDOMWindowCustom

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=158294

            Bug ID: 158294
           Summary: Refactor showModalDialog handling in JSDOMWindowCustom
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Bindings
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: barraclough at apple.com
                CC: cdumez at apple.com

The way this is currently implemented, for accessing the showModalDialog property there is effectively a duplication of the tail of the function modified to call Base::getOwnPropertySlot instead of getStaticPropertySlot. It does so based on the assumption that Base::getOwnPropertySlot is not going to search the static tables (containing the property we wish to omit).

However as a part of bug #158178 I plan to change it such that Base::getOwnPropertySlot does also search the static tables. Refactor this code to no longer depend on Base::getOwnPropertySlot bypassing the static tables. Always perform a lookup that will check both property storage & static tables. If the object does contain the property, check explicitly for the value we're intending to suppress.

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