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#[deprecated]
has no effect on macros
#49912
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Some discussion here: #48524 (comment) Deprecation and stability checking is actually done after macro expansion, so a complete solution would probably need to lift both of those into phase 2. or just have a separate implementation for macros like I did with stability checking in that PR. |
If nothing else, |
The goal is to support deprecation on macros, it's just that all the infrastructure for deprecation is in a later phase so even a naive implementation would need to redo a lot of the support. We still need stability checking and deprecation after macro expansion as well. |
Fixed in #62042 |
Support stability and deprecation checking for all macros RELNOTES: Deprecation attributes on macros now have effect. Fixes rust-lang#34079 Fixes rust-lang#49912 Unblocks rust-lang#62086 Unblocks rust-lang#61000
Support stability and deprecation checking for all macros RELNOTES: Deprecation attributes on macros now have effect. Fixes rust-lang#34079 Fixes rust-lang#49912 Unblocks rust-lang#62086 Unblocks rust-lang#61000
The following code compiles successfully with no warnings, when it should be producing a deprecation warning.
https://play.rust-lang.org/?gist=aa4c719a14da2bb5cf3ddf8c3066f452&version=stable
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