(Filed as https://bugs.swift.org/browse/SR-5344)
The following fragment appears to cause memory usage to grow unboundedly: enum E { case A; case B(String) } while true { var output = ""; dump(E.A, to: &output) } I think that the issue is that when swift_EnumCaseName() is called with an enum type that has multiple cases and at least one object payload, it leaks a reference on its boxed-Any parameter. Does that sound plausible? I don't fully understand how the memory management in the reflection/mirror code works (Is there a good place to look?) My assumption is that in that case, the enum requires one word and one tag bit, which along with the other existential metadata is too big to be contained entirely in the box, so it's taking a reference on the box's out-of-line buffer which it is somehow failing to release. Paul _______________________________________________ swift-dev mailing list swift-dev@swift.org https://lists.swift.org/mailman/listinfo/swift-dev