rust/tests/ui/resolve/issue-112472-multi-generics-suggestion.rs

// run-rustfix

use std::fmt::Debug;
use std::marker::PhantomData;
use std::convert::{self, TryFrom};

#[allow(unused)]
struct Codec<EncodeLine, DecodeLine> {
    phantom_decode: PhantomData<DecodeLine>,
    phantom_encode: PhantomData<EncodeLine>,
}

pub enum ParseError {}

impl<EncodeLine, DecodeLine> Codec<EncodeLine, DecodeLine> where
    DecodeLine: Debug + convert::TryFrom<String>,
    <DecodeLine as convert::TryFrom<String>>::Error: ParseError,
    //~^ ERROR expected trait, found enum `ParseError`
    //~| HELP constrain the associated type to `ParseError`
{
}

impl<EncodeLine, DecodeLine> Codec<EncodeLine, DecodeLine> where
    DecodeLine: Debug + TryFrom<String>,
    <DecodeLine as TryFrom<String>>::Error: ParseError,
    //~^ ERROR expected trait, found enum `ParseError`
    //~| HELP constrain the associated type to `ParseError`
{
}

fn main() {}