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28 lines
694 B
Rust
28 lines
694 B
Rust
//@ revisions: edition2015 edition2018
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//@[edition2015] check-pass
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//@[edition2015] edition: 2015
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//@[edition2018] run-rustfix
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//@[edition2018] edition: 2018
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#![deny(unused_parens)]
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#[allow(unused)]
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macro_rules! edition2015_only {
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() => {
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mod dyn {
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pub type IsAContextualKeywordIn2015 = ();
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}
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pub type DynIsAContextualKeywordIn2015A = dyn::IsAContextualKeywordIn2015;
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}
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}
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#[cfg(edition2015)]
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edition2015_only!();
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// there's a lint for 2018 and later only because of how dyn is parsed in edition 2015
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//[edition2018]~v ERROR unnecessary parentheses around type
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pub type DynIsAContextualKeywordIn2015B = Box<dyn (::std::ops::Fn())>;
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fn main() {}
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