[Webkit-unassigned] [Bug 191730] New: RegExpObject's collectMatches should not be using JSArray::push to fill in its match results.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=191730

            Bug ID: 191730
           Summary: RegExpObject's collectMatches should not be using
                    JSArray::push to fill in its match results.
           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: mark.lam at apple.com

According to the spec https://www.ecma-international.org/ecma-262/9.0/index.html#sec-regexp.prototype-@@match, the RegExp match results are filling in using the spec's CreateDataProperty() which does not consult the prototype for setters.  JSArray:push() consults the prototype for setters.  We should be using putDirectIndex() instead.

<rdar://problem/46048517>

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