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Allow legacy custom derive authors to disable warnings in downstream crates #38533
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Dec 23, 2016
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Allow legacy custom derive authors to disable warnings in downstream crates #38533
bors
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rust-lang:master
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jseyfried:legacy_custom_derive_deprecation
Dec 23, 2016
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nrc
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r = me with some docs
@@ -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 |
📌 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