Trait rustc_hir_analysis::structured_errors::StructuredDiagnostic

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pub trait StructuredDiagnostic<'tcx> {
    // Required methods
    fn session(&self) -> &Session;
    fn code(&self) -> ErrCode;
    fn diagnostic_common(&self) -> Diag<'tcx>;

    // Provided methods
    fn diagnostic(&self) -> Diag<'tcx> { ... }
    fn diagnostic_regular(&self, err: Diag<'tcx>) -> Diag<'tcx> { ... }
    fn diagnostic_extended(&self, err: Diag<'tcx>) -> Diag<'tcx> { ... }
}