58 lines
1.8 KiB
Rust
58 lines
1.8 KiB
Rust
//@no-rustfix: overlapping suggestions
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#![allow(unused_must_use)]
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#![warn(clippy::needless_raw_strings, clippy::write_literal)]
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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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writeln!(v, "{}", "{hello}");
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//~^ ERROR: literal with an empty format string
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//~| NOTE: `-D clippy::write-literal` implied by `-D warnings`
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writeln!(v, r"{}", r"{hello}");
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//~^ ERROR: unnecessary raw string literal
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//~| NOTE: `-D clippy::needless-raw-strings` implied by `-D warnings`
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//~| ERROR: literal with an empty format string
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writeln!(v, "{}", '\'');
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//~^ ERROR: literal with an empty format string
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writeln!(v, "{}", '"');
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//~^ ERROR: literal with an empty format string
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writeln!(v, r"{}", '"');
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//~^ ERROR: literal with an empty format string
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writeln!(v, r"{}", '\'');
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//~^ ERROR: literal with an empty format string
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writeln!(
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v,
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"some {}",
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"hello \
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//~^ ERROR: literal with an empty format string
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world!"
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);
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writeln!(
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v,
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"some {}\
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{} \\ {}",
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"1",
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"2",
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"3",
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//~^ ERROR: literal with an empty format string
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);
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writeln!(v, "{}", "\\");
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//~^ ERROR: literal with an empty format string
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writeln!(v, r"{}", "\\");
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//~^ ERROR: literal with an empty format string
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writeln!(v, r#"{}"#, "\\");
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//~^ ERROR: literal with an empty format string
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writeln!(v, "{}", r"\");
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//~^ ERROR: literal with an empty format string
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writeln!(v, "{}", "\r");
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//~^ ERROR: literal with an empty format string
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// hard mode
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writeln!(v, r#"{}{}"#, '#', '"');
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//~^ ERROR: literal with an empty format string
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//~| ERROR: literal with an empty format string
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// should not lint
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writeln!(v, r"{}", "\r");
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}
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