compiler/rustc_typeck/src/structured_errors.rs

   1 mod missing_cast_for_variadic_arg;
   2 mod sized_unsized_cast;
   3 mod wrong_number_of_generic_args;
   4
   5 pub use self::{
   6     missing_cast_for_variadic_arg::*, sized_unsized_cast::*, wrong_number_of_generic_args::*,
   7 };
   8
   9 use rustc_errors::{DiagnosticBuilder, DiagnosticId};
  10 use rustc_session::Session;
  11
  12 pub trait StructuredDiagnostic<'tcx> {
  13     fn session(&self) -> &Session;
  14
  15     fn code(&self) -> DiagnosticId;
  16
  17     fn diagnostic(&self) -> DiagnosticBuilder<'tcx> {
  18         let err = self.diagnostic_common();
  19
  20         if self.session().teach(&self.code()) {
  21             self.diagnostic_extended(err)
  22         } else {
  23             self.diagnostic_regular(err)
  24         }
  25     }
  26
  27     fn diagnostic_common(&self) -> DiagnosticBuilder<'tcx>;
  28
  29     fn diagnostic_regular(&self, err: DiagnosticBuilder<'tcx>) -> DiagnosticBuilder<'tcx> {
  30         err
  31     }
  32
  33     fn diagnostic_extended(&self, err: DiagnosticBuilder<'tcx>) -> DiagnosticBuilder<'tcx> {
  34         err
  35     }
  36 }