rust/tests/ui/uninlined_format_args_panic.rs

//@revisions: edition2018 edition2021 edition2024
//@[edition2018] edition:2018
//@[edition2021] edition:2021
//@[edition2024] edition:2024

#![warn(clippy::uninlined_format_args)]
#![allow(clippy::literal_string_with_formatting_args)]

fn main() {
    let var = 1;

    println!("val='{}'", var);
    //~^ uninlined_format_args

    if var > 0 {
        panic!("p1 {}", var);
        //~[edition2021]^ uninlined_format_args
        //~[edition2024]^^ uninlined_format_args
    }
    if var > 0 {
        panic!("p2 {0}", var);
        //~[edition2021]^ uninlined_format_args
        //~[edition2024]^^ uninlined_format_args
    }
    if var > 0 {
        panic!("p3 {var}", var = var);
        //~[edition2021]^ uninlined_format_args
        //~[edition2024]^^ uninlined_format_args
    }

    #[allow(non_fmt_panics)]
    {
        if var > 0 {
            panic!("p4 {var}");
        }
    }

    assert!(var == 1, "p5 {}", var);
    //~[edition2021]^ uninlined_format_args
    //~[edition2024]^^ uninlined_format_args
    debug_assert!(var == 1, "p6 {}", var);
    //~[edition2021]^ uninlined_format_args
    //~[edition2024]^^ uninlined_format_args

    // core::panic! with format string containing text: should warn on 2021+ (issue #16411)
    if var > 0 {
        core::panic!("p7 {}", var);
        //~[edition2021]^ uninlined_format_args
        //~[edition2024]^^ uninlined_format_args
    }
    if var > 0 {
        core::panic!("p8 {0}", var);
        //~[edition2021]^ uninlined_format_args
        //~[edition2024]^^ uninlined_format_args
    }
    if var > 0 {
        core::panic!("p9 {var}", var = var);
        //~[edition2021]^ uninlined_format_args
        //~[edition2024]^^ uninlined_format_args
    }

    // std::panic! and core::panic! with only "{}" format string: false negative due to
    // panic_display special case in panic_2021 macro - no format_args node is created
    if var > 0 {
        std::panic!("{}", var);
    }
    if var > 0 {
        core::panic!("{}", var);
    }
}