31 lines
795 B
Rust
31 lines
795 B
Rust
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#![feature(lazy_cell)]
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#![deny(suspicious_double_ref_op, noop_method_call)]
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pub fn clone_on_double_ref() {
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let x = vec![1];
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let y = &&x;
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let z: &Vec<_> = y.clone();
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//~^ ERROR using `.clone()` on a double reference, which returns `&Vec<i32>`
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println!("{:p} {:p}", *y, z);
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}
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use std::sync::LazyLock;
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pub static STRS: LazyLock<&str> = LazyLock::new(|| "First");
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// https://github.com/rust-lang/rust-clippy/issues/9272
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fn rust_clippy_issue_9272() {
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let str = STRS.clone();
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println!("{str}")
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}
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fn check(mut encoded: &[u8]) {
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let _ = &mut encoded.clone();
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//~^ ERROR call to `.clone()` on a reference in this situation does nothing
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let _ = &encoded.clone();
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//~^ ERROR call to `.clone()` on a reference in this situation does nothing
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}
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fn main() {}
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