[Webkit-unassigned] [Bug 174935] New: [WTF] Introduce Internal / Private Symbols

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=174935

            Bug ID: 174935
           Summary: [WTF] Introduce Internal / Private Symbols
           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

Upcoming proposal of class fields[1] requires private fields.
The easiest way to implement it is adding a property with specially marked symbols.
Currently, we have private symbols, which is used for internal use cases, and managed in the hash table.
But this proposal will encourage users to create such private symbols more and more.

So, I think introducing notion of Private and Internal into WTF SymbolImpl is simpler.
We do not need to look up value from private symbol hash table no longer. SymbolImpl knows that it is a private/internal/public symbol.

[1]: https://github.com/tc39/proposal-class-fields

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