59 lines
1.2 KiB
Rust
59 lines
1.2 KiB
Rust
#![warn(clippy::redundant_clone)]
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use std::ffi::OsString;
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use std::path::Path;
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fn main() {
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let _ = ["lorem", "ipsum"].join(" ").to_string();
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let s = String::from("foo");
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let _ = s.clone();
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let s = String::from("foo");
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let _ = s.to_string();
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let s = String::from("foo");
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let _ = s.to_owned();
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let _ = Path::new("/a/b/").join("c").to_owned();
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let _ = Path::new("/a/b/").join("c").to_path_buf();
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let _ = OsString::new().to_owned();
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let _ = OsString::new().to_os_string();
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// Check that lint level works
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#[allow(clippy::redundant_clone)]
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let _ = String::new().to_string();
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let tup = (String::from("foo"),);
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let _ = tup.0.clone();
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let tup_ref = &(String::from("foo"),);
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let _s = tup_ref.0.clone(); // this `.clone()` cannot be removed
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}
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#[derive(Clone)]
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struct Alpha;
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fn with_branch(a: Alpha, b: bool) -> (Alpha, Alpha) {
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if b {
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(a.clone(), a.clone())
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} else {
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(Alpha, a)
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}
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}
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struct TypeWithDrop {
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x: String,
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}
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impl Drop for TypeWithDrop {
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fn drop(&mut self) {}
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}
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fn cannot_move_from_type_with_drop() -> String {
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let s = TypeWithDrop { x: String::new() };
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s.x.clone() // removing this `clone()` summons E0509
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}
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