207712 2020-02-13 11:55:36 -0800 [JSC] WeakGCMap should use WeakSet mechanism 2020-02-13 12:24:18 -0800 1 1 1 Unclassified WebKit JavaScriptCore WebKit Nightly Build Unspecified Unspecified NEW https://bugs.webkit.org/show_bug.cgi?id=207715 P2 Normal --- 207715 1 ysuzuki ysuzuki oldest_to_newest 1618632 0 ysuzuki 2020-02-13 11:55:36 -0800 Almost always, key is included inside value. We were doing so just because our HashMap does not offer weak handling. But Ryosuke added it, so just use it to shrink table size.