38 lines
1 KiB
Rust
38 lines
1 KiB
Rust
#![warn(clippy::unnecessary_join)]
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#![allow(clippy::uninlined_format_args, clippy::useless_vec)]
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fn main() {
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// should be linted
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let vector = vec!["hello", "world"];
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let output = vector
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.iter()
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.map(|item| item.to_uppercase())
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.collect::<Vec<String>>()
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//~^ unnecessary_join
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.join("");
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println!("{}", output);
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// should be linted
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let vector = vec!["hello", "world"];
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let output = vector
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.iter()
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.map(|item| item.to_uppercase())
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.collect::<Vec<_>>()
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//~^ unnecessary_join
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.join("");
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println!("{}", output);
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// should not be linted
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let vector = vec!["hello", "world"];
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let output = vector
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.iter()
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.map(|item| item.to_uppercase())
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.collect::<Vec<String>>()
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.join("\n");
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println!("{}", output);
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// should not be linted
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let vector = vec!["hello", "world"];
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let output = vector.iter().map(|item| item.to_uppercase()).collect::<String>();
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println!("{}", output);
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}
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