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authorbors <bors@rust-lang.org>2017-09-23 02:55:52 +0000
committerbors <bors@rust-lang.org>2017-09-23 02:55:52 +0000
commit9ad67e9fc34d796e73f39970f513a78f69d21819 (patch)
treed65be815d5f68e64578863efabf5e6a49742b2ba /src/rustllvm/RustWrapper.cpp
parent01b1d1590029da748fbc7ce723b70f6d3442a729 (diff)
parent083f053294b062e12bacfea17a07f83e1b4c3732 (diff)
downloadrust-9ad67e9fc34d796e73f39970f513a78f69d21819.tar.gz
rust-9ad67e9fc34d796e73f39970f513a78f69d21819.zip
Auto merge of #44055 - zackmdavis:condensed_non-ADT_derive_error, r=jseyfried
only set non-ADT derive error once per attribute, not per trait

I found the expansion code very hard to follow, leaving me unsure as to whether this might somehow be done better, but this patch does give us the behavior requested in #43927 (up to exact choice of span; here, it's the entire attribute, not just the `derive` token).

(Note to GitHub robots: _resolves #43927_.)

r? @jseyfried
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