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| author | Simon Sapin <simon.sapin@exyr.org> | 2016-03-07 16:07:18 +0100 |
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| committer | Simon Sapin <simon.sapin@exyr.org> | 2016-03-07 16:07:18 +0100 |
| commit | e387c8870017a9fb014fb18e249395a844f5d0e6 (patch) | |
| tree | 84db567afa45c9105e4b1d48a785e48a75bc3b7e /src/libsyntax/errors | |
| parent | e079afa00b58f06de8e2a7596073045cd0983b7b (diff) | |
| download | rust-e387c8870017a9fb014fb18e249395a844f5d0e6.tar.gz rust-e387c8870017a9fb014fb18e249395a844f5d0e6.zip | |
"can be built on Ref::map"… how?
Now that `std::cell::Ref::filter_map` and `RefMut::filter_map` are deprecated, using them gives a warning like: ``` script/dom/element.rs:754:9: 754:24 warning: use of deprecated item: can be built on Ref::map, #[warn(deprecated)] on by default ``` But it’s not at all obvious *how* the functionality can be built on `Ref::map`. This PR adds to the warning message a crates.io URL for a crate that does.
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