TrapReasonBuilder.cpp

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/===----------------------------------------------------------------------===/
/
/ Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
/ See https://llvm.org/LICENSE.txt for license information.
/ SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
/
/===----------------------------------------------------------------------===/
/
/ \file
/ This file implements TrapReasonBuilder and related classes.
/
/===----------------------------------------------------------------------===/
#include "TrapReasonBuilder.h"
 
namespace clang {
namespace CodeGen {
 
TrapReasonBuilder::TrapReasonBuilder(DiagnosticsEngine *DiagObj,
                                     unsigned DiagID, TrapReason &TR)
    : DiagnosticBuilder(DiagObj, SourceLocation(), DiagID), TR(TR) {
  assert(DiagObj->getDiagnosticIDs()->isTrapDiag(DiagID));
}
 
TrapReasonBuilder::~TrapReasonBuilder() {
  / Store the trap message and category into the TrapReason object.
  getMessage(TR.Message);
  TR.Category = getCategory();
 
  / Make sure that when `DiagnosticBuilder::~DiagnosticBuilder()`
  / calls `Emit()` that it does nothing.
  Clear();
}
 
void TrapReasonBuilder::getMessage(SmallVectorImpl<char> &Storage) {
  / Render the Diagnostic
  Diagnostic Info(getDiagnosticsEngine(), *this);
  Info.FormatDiagnostic(Storage);
}
 
StringRef TrapReasonBuilder::getCategory() {
  auto CategoryID =
      getDiagnosticsEngine()->getDiagnosticIDs()->getCategoryNumberForDiag(
          getDiagID());
  if (CategoryID == 0)
    return "";
  return getDiagnosticsEngine()->getDiagnosticIDs()->getCategoryNameFromID(
      CategoryID);
}
} / namespace CodeGen
} / namespace clang