regexp-ast-printer.h

Enable keyboard shortcuts

// Copyright 2026 the V8 project authors. All rights reserved.

// Use of this source code is governed by a BSD-style license that can be

// found in the LICENSE file.

#ifndef V8_REGEXP_REGEXP_AST_PRINTER_H_

#define V8_REGEXP_REGEXP_AST_PRINTER_H_

#ifdef V8_ENABLE_REGEXP_DIAGNOSTICS

#include "irregexp/imported/regexp-ast.h"

#include "irregexp/imported/regexp-printer.h"

namespace v8 {

namespace internal {

namespace regexp {

class Diagnostics;

template <typename T>

class NodePrinter;

template <>

class V8_EXPORT_PRIVATE NodePrinter<Tree> : public NodePrinterBase<Tree>,

                                            public Visitor {

 public:

  NodePrinter(std::ostream& os, GraphLabeller<Tree>* labeller, Zone* zone)

      : NodePrinterBase(os, labeller, zone, 't') {}

  NodePrinter(const PrinterBase& other, GraphLabeller<Tree>* labeller)

      : NodePrinterBase(other, labeller, 't') {}

  void VisitCharacterRange(CharacterRange that);

#define DECLARE_VISIT(Name) void* Visit##Name(Name*, void* data) override;

  FOR_EACH_REG_EXP_TREE_TYPE(DECLARE_VISIT)

#undef DECLARE_VISIT

  void Print(Tree* tree);

};

using AstNodePrinter = NodePrinter<Tree>;

class TraceTreeScope {

 public:

  explicit TraceTreeScope(Diagnostics* diagnostics);

  ~TraceTreeScope();

  void PrintTree(Tree* tree);

  std::ostream& os();

 private:

  TraceTreeScope* const parent_;

  const int depth_;

  Diagnostics* diagnostics_;

};

}  // namespace regexp

}  // namespace internal

}  // namespace v8

#endif  // V8_ENABLE_REGEXP_DIAGNOSTICS

#endif  // V8_REGEXP_REGEXP_AST_PRINTER_H_