[Webkit-unassigned] [Bug 278207] New: [JSC] Disallow sub-minute in TimeZoneAnnotation

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=278207

            Bug ID: 278207
           Summary: [JSC] Disallow sub-minute in TimeZoneAnnotation
           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: aosukeke at gmail.com

According to the latest specification of Temporal[1][2][3], sub-minute values cannot be written in
    the UTCOffset of a TimeZoneAnnotation within an ISO8601 string.

    However, in the current JSC, even if a sub-minute value is written in the TimeZoneAnnotation, no
    RangeError is thrown.

    [1]: https://tc39.es/proposal-temporal/#prod-TimeZoneAnnotation
    [2]: https://tc39.es/proposal-temporal/#prod-TimeZoneIdentifier
    [3]: https://tc39.es/proposal-temporal/#prod-UTCOffset

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