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authorbors <bors@rust-lang.org>2020-12-11 22:00:00 +0000
committerbors <bors@rust-lang.org>2020-12-11 22:00:00 +0000
commit9eb3a7ceafd1e2c1924177caa18c7cc0c25b413e (patch)
treea68004e4e691ad675d5faa8ef2722ecfd13ba126 /compiler/rustc_serialize/src/json.rs
parent2225ee1b62ff089917434aefd9b2bf509cfa087f (diff)
parentd93f1d6c04fab017a24d868dd766a290321e636c (diff)
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Auto merge of #79349 - Nemo157:issue-79201, r=jyn514
Apply `doc(cfg)` from parent items while collecting trait impls

Because trait impls bypass the standard `clean` hierarchy they do not participate in the `propagate_doc_cfg` pass, so instead we need to pre-collect all possible `doc(cfg)` attributes that will apply to them when cleaning.

fixes #79201
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