53 lines
1.3 KiB
Rust
53 lines
1.3 KiB
Rust
// FIXME: Ideally these suggestions would be fixed via rustfix. Blocked by rust-lang/rust#53934
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// // run-rustfix
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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"); // should fail
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write!(&mut v, "\\\\n");
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// Raw strings
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write!(&mut v, r"\n"); // #3778
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// Literal newlines should also fail
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write!(
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&mut v,
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"
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"
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);
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write!(
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&mut v,
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r"
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"
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);
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}
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