mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-11-24 05:33:27 +00:00
43 lines
1.4 KiB
Rust
43 lines
1.4 KiB
Rust
// Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![allow(clippy::write_literal)]
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#![warn(clippy::write_with_newline)]
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use std::io::Write;
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fn main() {
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let mut v = Vec::new();
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// These should fail
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write!(&mut v, "Hello\n");
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write!(&mut v, "Hello {}\n", "world");
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write!(&mut v, "Hello {} {}\n", "world", "#2");
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write!(&mut v, "{}\n", 1265);
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// These should be fine
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write!(&mut v, "");
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write!(&mut v, "Hello");
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writeln!(&mut v, "Hello");
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writeln!(&mut v, "Hello\n");
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writeln!(&mut v, "Hello {}\n", "world");
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write!(&mut v, "Issue\n{}", 1265);
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write!(&mut v, "{}", 1265);
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write!(&mut v, "\n{}", 1275);
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write!(&mut v, "\n\n");
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write!(&mut v, "like eof\n\n");
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write!(&mut v, "Hello {} {}\n\n", "world", "#2");
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writeln!(&mut v, "\ndon't\nwarn\nfor\nmultiple\nnewlines\n"); // #3126
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writeln!(&mut v, "\nbla\n\n"); // #3126
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// Escaping
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write!(&mut v, "\\n"); // #3514
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write!(&mut v, "\\\n");
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write!(&mut v, "\\\\n");
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}
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