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// run-rustfix
#![warn(clippy::unnecessary_join)]
fn main() {
// should be linted
let vector = vec!["hello", "world"];
let output = vector
.iter()
.map(|item| item.to_uppercase())
.collect::<Vec<String>>()
.join("");
println!("{}", output);
// should be linted
let vector = vec!["hello", "world"];
let output = vector
.iter()
.map(|item| item.to_uppercase())
.collect::<Vec<_>>()
.join("");
println!("{}", output);
// should not be linted
let vector = vec!["hello", "world"];
let output = vector
.iter()
.map(|item| item.to_uppercase())
.collect::<Vec<String>>()
.join("\n");
println!("{}", output);
// should not be linted
let vector = vec!["hello", "world"];
let output = vector.iter().map(|item| item.to_uppercase()).collect::<String>();
println!("{}", output);
}
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