39 lines
719 B
Rust
39 lines
719 B
Rust
//@aux-build:proc_macros.rs
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#![warn(clippy::must_use_unit)]
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#![allow(clippy::unused_unit)]
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extern crate proc_macros;
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use proc_macros::external;
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#[must_use]
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pub fn must_use_default() {}
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//~^ must_use_unit
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#[must_use]
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pub fn must_use_unit() -> () {}
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//~^ must_use_unit
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#[must_use = "With note"]
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pub fn must_use_with_note() {}
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//~^ must_use_unit
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fn main() {
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must_use_default();
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must_use_unit();
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must_use_with_note();
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// We should not lint in external macros
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external!(
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#[must_use]
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fn foo() {}
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);
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}
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#[cfg_attr(all(), must_use, deprecated)]
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fn issue_12320() {}
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//~^ must_use_unit
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#[cfg_attr(all(), deprecated, doc = "foo", must_use)]
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fn issue_12320_2() {}
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//~^ must_use_unit
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