C++ SMDiagnostic::getMessage方法代码示例

/// InlineAsmDiagHandler2 - This function is invoked when the backend hits an
/// error parsing inline asm.  The SMDiagnostic indicates the error relative to
/// the temporary memory buffer that the inline asm parser has set up.
void BackendConsumer::InlineAsmDiagHandler2(const llvm::SMDiagnostic &D,
                                            SourceLocation LocCookie) {
  // There are a couple of different kinds of errors we could get here.  First,
  // we re-format the SMDiagnostic in terms of a mlang diagnostic.

  // Strip "error: " off the start of the message string.
  llvm::StringRef Message = D.getMessage();
  if (Message.startswith("error: "))
    Message = Message.substr(7);

  // If the SMDiagnostic has an inline asm source location, translate it.
  FullSourceLoc Loc;
  if (D.getLoc() != SMLoc())
    Loc = ConvertBackendLocation(D, Context->getSourceManager());
  

  // If this problem has mlang-level source location information, report the
  // issue as being an error in the source with a note showing the instantiated
  // code.
  if (LocCookie.isValid()) {
    Diags.Report(LocCookie, diag::err_fe_inline_asm).AddString(Message);
    
    if (D.getLoc().isValid())
      Diags.Report(Loc, diag::note_fe_inline_asm_here);
    return;
  }
  
  // Otherwise, report the backend error as occuring in the generated .s file.
  // If Loc is invalid, we still need to report the error, it just gets no
  // location info.
  Diags.Report(Loc, diag::err_fe_inline_asm).AddString(Message);
}

static void ReportInlineAsmError(const llvm::SMDiagnostic &diagnostic, void *Context, unsigned LocCookie)
{
    Error *err = static_cast<Error*>(Context);

    if (err && err->Success())
    {
        err->SetErrorToGenericError();
        err->SetErrorStringWithFormat("Inline assembly error: %s", diagnostic.getMessage().str().c_str());
    }
}

void
raiseError(llvm::SMDiagnostic err)
{
    SEXP e, cur;
    PROTECT(e = allocVector(LANGSXP, 4));
    SETCAR(e, Rf_install("parseIRError")); cur = CDR(e);
    SETCAR(cur, ScalarInteger(err.getLineNo())); cur = CDR(cur);
    SETCAR(cur, ScalarInteger(err.getColumnNo())); cur = CDR(cur);
    SETCAR(cur, ScalarString(mkChar(err.getMessage().data())));
    Rf_eval(e, R_GlobalEnv);
    UNPROTECT(1);
}

/// InlineAsmDiagHandler2 - This function is invoked when the backend hits an
/// error parsing inline asm.  The SMDiagnostic indicates the error relative to
/// the temporary memory buffer that the inline asm parser has set up.
void BackendConsumer::InlineAsmDiagHandler2(const llvm::SMDiagnostic &D,
                                            SourceLocation LocCookie) {
  // There are a couple of different kinds of errors we could get here.  First,
  // we re-format the SMDiagnostic in terms of a clang diagnostic.

  // Strip "error: " off the start of the message string.
  StringRef Message = D.getMessage();
  if (Message.startswith("error: "))
    Message = Message.substr(7);

  // If the SMDiagnostic has an inline asm source location, translate it.
  FullSourceLoc Loc;
  if (D.getLoc() != SMLoc())
    Loc = ConvertBackendLocation(D, Context->getSourceManager());

  unsigned DiagID;
  switch (D.getKind()) {
  case llvm::SourceMgr::DK_Error:
    DiagID = diag::err_fe_inline_asm;
    break;
  case llvm::SourceMgr::DK_Warning:
    DiagID = diag::warn_fe_inline_asm;
    break;
  case llvm::SourceMgr::DK_Note:
    DiagID = diag::note_fe_inline_asm;
    break;
  case llvm::SourceMgr::DK_Remark:
    llvm_unreachable("remarks unexpected");
  }
  // If this problem has clang-level source location information, report the
  // issue in the source with a note showing the instantiated
  // code.
  if (LocCookie.isValid()) {
    Diags.Report(LocCookie, DiagID).AddString(Message);

    if (D.getLoc().isValid()) {
      DiagnosticBuilder B = Diags.Report(Loc, diag::note_fe_inline_asm_here);
      // Convert the SMDiagnostic ranges into SourceRange and attach them
      // to the diagnostic.
      for (const std::pair<unsigned, unsigned> &Range : D.getRanges()) {
        unsigned Column = D.getColumnNo();
        B << SourceRange(Loc.getLocWithOffset(Range.first - Column),
                         Loc.getLocWithOffset(Range.second - Column));
      }
    }
    return;
  }

  // Otherwise, report the backend issue as occurring in the generated .s file.
  // If Loc is invalid, we still need to report the issue, it just gets no
  // location info.
  Diags.Report(Loc, DiagID).AddString(Message);
}

void ClangAsmParserCallback::handleDiagnostic(const llvm::SMDiagnostic &D) {
  const llvm::SourceMgr &LSM = *D.getSourceMgr();
  SourceLocation Loc = translateLocation(LSM, D.getLoc());
  TheParser.Diag(Loc, diag::err_inline_ms_asm_parsing) << D.getMessage();
}