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62 lines
2.6 KiB
Rust
62 lines
2.6 KiB
Rust
#![allow(clippy::assertions_on_constants)]
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#![allow(clippy::eq_op)]
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#![warn(clippy::format_in_format_args)]
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#![warn(clippy::to_string_in_format_args)]
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use std::io::{stdout, Error, ErrorKind, Write};
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use std::ops::Deref;
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use std::panic::Location;
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macro_rules! my_macro {
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() => {
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// here be dragons, do not enter (or lint)
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println!("error: {}", format!("something failed at {}", Location::caller()));
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};
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}
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macro_rules! my_other_macro {
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() => {
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format!("something failed at {}", Location::caller())
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};
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}
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fn main() {
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let error = Error::new(ErrorKind::Other, "bad thing");
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let x = 'x';
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println!("error: {}", format!("something failed at {}", Location::caller()));
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println!("{}: {}", error, format!("something failed at {}", Location::caller()));
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println!("{:?}: {}", error, format!("something failed at {}", Location::caller()));
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println!("{{}}: {}", format!("something failed at {}", Location::caller()));
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println!(r#"error: "{}""#, format!("something failed at {}", Location::caller()));
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println!("error: {}", format!(r#"something failed at "{}""#, Location::caller()));
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println!("error: {}", format!("something failed at {} {0}", Location::caller()));
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let _ = format!("error: {}", format!("something failed at {}", Location::caller()));
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let _ = write!(
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stdout(),
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"error: {}",
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format!("something failed at {}", Location::caller())
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);
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let _ = writeln!(
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stdout(),
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"error: {}",
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format!("something failed at {}", Location::caller())
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);
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print!("error: {}", format!("something failed at {}", Location::caller()));
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eprint!("error: {}", format!("something failed at {}", Location::caller()));
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eprintln!("error: {}", format!("something failed at {}", Location::caller()));
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let _ = format_args!("error: {}", format!("something failed at {}", Location::caller()));
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assert!(true, "error: {}", format!("something failed at {}", Location::caller()));
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assert_eq!(0, 0, "error: {}", format!("something failed at {}", Location::caller()));
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assert_ne!(0, 0, "error: {}", format!("something failed at {}", Location::caller()));
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panic!("error: {}", format!("something failed at {}", Location::caller()));
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// negative tests
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println!("error: {}", format_args!("something failed at {}", Location::caller()));
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println!("error: {:>70}", format!("something failed at {}", Location::caller()));
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println!("error: {} {0}", format!("something failed at {}", Location::caller()));
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println!("{} and again {0}", format!("hi {}", x));
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my_macro!();
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println!("error: {}", my_other_macro!());
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}
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