[Webkit-unassigned] [Bug 164137] New: [DOM] Introduce WebCore::jsDowncast

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=164137

            Bug ID: 164137
           Summary: [DOM] Introduce WebCore::jsDowncast
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: utatane.tea at gmail.com

It is thin wrapper for jsDynamicCast. But it selects the faster implementation if the given target type is WebCore extending JSType.

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