Allow legacy custom derive authors to disable warnings in downstream crates #38533
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nrc
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Dec 23, 2016
| @@ -115,6 +118,17 @@ impl<'a> Registry<'a> { | |||
| })); | |||
| } | |||
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| #[unstable(feature = "rustc_private", issue = "27812")] | |||
| #[rustc_deprecated(since = "1.15.0", reason = "replaced by macros 1.1 (RFC 1861)")] | |||
| pub fn register_custom_derive(&mut self, name: ast::Name, extension: SyntaxExtension) { | |||
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Could you document here when an author should use this and what its effects are please?
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@bors r=nrc |
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📌 Commit c12fc66 has been approved by |
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Allow legacy custom derive authors to disable warnings in downstream crates This PR allows legacy custom derive authors to use a pre-deprecated method `registry.register_custom_derive()` instead of `registry.register_syntax_extension()` to avoid downstream deprecation warnings. r? @nrc
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This PR allows legacy custom derive authors to use a pre-deprecated method
registry.register_custom_derive()instead ofregistry.register_syntax_extension()to avoid downstream deprecation warnings.r? @nrc