42 lines
882 B
Rust
42 lines
882 B
Rust
//@aux-build:proc_macros.rs
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#![warn(clippy::toplevel_ref_arg)]
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#![allow(clippy::uninlined_format_args, unused, clippy::useless_vec)]
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extern crate proc_macros;
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use proc_macros::{external, inline_macros};
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#[inline_macros]
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fn main() {
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// Closures should not warn
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let y = |ref x| println!("{:?}", x);
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y(1u8);
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let _x = &1;
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let _y: &(&_, u8) = &(&1, 2);
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let _z = &(1 + 2);
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let _z = &mut (1 + 2);
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let (ref x, _) = (1, 2); // ok, not top level
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println!("The answer is {}.", x);
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let _x = &vec![1, 2, 3];
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// Make sure that allowing the lint works
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#[allow(clippy::toplevel_ref_arg)]
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let ref mut _x = 1_234_543;
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// ok
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for ref _x in 0..10 {}
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// lint in macro
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inline!(let _y = &42;);
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// do not lint in external macro
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external!(let ref _y = 42;);
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fn f(#[allow(clippy::toplevel_ref_arg)] ref x: i32) {}
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}
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