rust/compiler/rustc_hir_analysis/src/structured_errors.rs

mod wrong_number_of_generic_args;

pub use self::wrong_number_of_generic_args::*;

use rustc_errors::{Diag, ErrCode};
use rustc_session::Session;

pub trait StructuredDiag<'tcx> {
    fn session(&self) -> &Session;

    fn code(&self) -> ErrCode;

    fn diagnostic(&self) -> Diag<'tcx> {
        let err = self.diagnostic_common();

        if self.session().teach(self.code()) {
            self.diagnostic_extended(err)
        } else {
            self.diagnostic_regular(err)
        }
    }

    fn diagnostic_common(&self) -> Diag<'tcx>;

    fn diagnostic_regular(&self, err: Diag<'tcx>) -> Diag<'tcx> {
        err
    }

    fn diagnostic_extended(&self, err: Diag<'tcx>) -> Diag<'tcx> {
        err
    }
}