[Webkit-unassigned] [Bug 206431] New: [JSC] Add support for private class fields

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=206431

            Bug ID: 206431
           Summary: [JSC] Add support for private class fields
           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: caitp at igalia.com

A separate bug for the 2nd part of https://bugs.webkit.org/show_bug.cgi?id=174212.

This implements private instance (non-static) class fields, using the framework created for public class fields. Currently, this contains a single new opcode (op_get_by_val_direct), which handles Symbol cells with PrivateSymbolImpls specially. In addition, a new flag is added to PutByValDirect, in order to distinguish between definition and assignment of private names.

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