7 commits

Author	SHA1	Message	Date
Niko Matsakis	30714022fd	kill the ChangedAt struct ... It didn't seem like it was buying us much.	2019-07-02 07:49:01 -04:00
Niko Matsakis	9d550a9343	track dependencies via direct links to slots	2019-07-02 06:49:24 -04:00
Niko Matsakis	1528746267	adopt key, group key, and database key terminology	2019-01-24 06:33:02 -05:00
Niko Matsakis	4158a4dba5	move the RefUnwindSafe impls to shared/local state structs	2019-01-18 07:12:17 -05:00
Niko Matsakis	f0c5cffd89	add Drop to recover from panic gracefully	2019-01-18 05:52:47 -05:00
Niko Matsakis	21519e6ff7	introduce a ActiveQueryGuard type	2019-01-18 05:49:25 -05:00
Niko Matsakis	15e1366d81	move local-state into its own module	2019-01-18 05:43:39 -05:00