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authorkennytm <kennytm@gmail.com>2017-10-10 20:08:23 +0800
committerkennytm <kennytm@gmail.com>2017-10-10 22:44:02 +0800
commit9effa73286686b297856cc7d1b84f32ecfab94c8 (patch)
tree17adba78fe22f9491bfc8ff51065bc96bc522869 /src/test/incremental/thinlto
parentf2efa793f02e737c830256d32be39273f244fd51 (diff)
parent3fff2d95bf90514e66892ca9be666c35eeae9165 (diff)
downloadrust-9effa73286686b297856cc7d1b84f32ecfab94c8.tar.gz
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Rollup merge of #45095 - bluss:discriminant-send-sync, r=alexcrichton
Ensure std::mem::Discriminant is Send + Sync

`PhantomData<*const T>` has the implication of Send / Syncness following
the *const T type, but the discriminant should always be Send and Sync.

Use `PhantomData<fn() -> T>` which has the same variance in T, but is Send + Sync
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