llvm/clang/include/clang/Frontend/DiagnosticRenderer.h

//===- DiagnosticRenderer.h - Diagnostic Pretty-Printing --------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// This is a utility class that provides support for pretty-printing of
// diagnostics. It is used to implement the different code paths which require
// such functionality in a consistent way.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CLANG_FRONTEND_DIAGNOSTICRENDERER_H
#define LLVM_CLANG_FRONTEND_DIAGNOSTICRENDERER_H

#include "clang/Basic/Diagnostic.h"
#include "clang/Basic/DiagnosticOptions.h"
#include "clang/Basic/LLVM.h"
#include "clang/Basic/SourceLocation.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/IntrusiveRefCntPtr.h"
#include "llvm/ADT/PointerUnion.h"
#include "llvm/ADT/StringRef.h"

namespace clang {

class LangOptions;
class SourceManager;

DiagOrStoredDiag;

/// Class to encapsulate the logic for formatting a diagnostic message.
///
/// Actual "printing" logic is implemented by subclasses.
///
/// This class provides an interface for building and emitting
/// diagnostic, including all of the macro backtraces, caret diagnostics, FixIt
/// Hints, and code snippets. In the presence of macros this involves
/// a recursive process, synthesizing notes for each macro expansion.
///
/// A brief worklist:
/// FIXME: Sink the recursive printing of template instantiations into this
/// class.
class DiagnosticRenderer { … };

/// Subclass of DiagnosticRender that turns all subdiagostics into explicit
/// notes.  It is up to subclasses to further define the behavior.
class DiagnosticNoteRenderer : public DiagnosticRenderer { … };

} // namespace clang

#endif // LLVM_CLANG_FRONTEND_DIAGNOSTICRENDERER_H