[Webkit-unassigned] [Bug 160282] New: StringView should have an explicit m_is8Bit field.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=160282

            Bug ID: 160282
           Summary: StringView should have an explicit m_is8Bit field.
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Template Framework
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mark.lam at apple.com

The current implementation reserves 1 bit in the m_length field as a is16Bit flag.  As a result, a StringView is incapable of handling strings that have a length of a 32-bit in size.  This results in a mismatch with the expectations of String, StringImpl, and JavaScriptCore's JSString.

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