JSONPrinter.h - mozsearch

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-

 * vim: set ts=8 sts=2 et sw=2 tw=80:

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef vm_JSONPrinter_h

#define vm_JSONPrinter_h

#include "mozilla/TimeStamp.h"

#include <stdio.h>

#include "js/Printer.h"

#include "js/TypeDecls.h"

class JSLinearString;

namespace js {

class JSONPrinter {

 protected:

  int indentLevel_ = 0;

  int inlineLevel_ = 0;

  bool indent_;

  bool first_ = true;

  GenericPrinter& out_;

  void indent();

  void beforeValue();

 public:

  explicit JSONPrinter(GenericPrinter& out, bool indent = true)

      : indent_(indent), out_(out) {}

  void setIndentLevel(int indentLevel) { indentLevel_ = indentLevel; }

  void beginObject();

  void beginList();

  void beginObjectProperty(const char* name);

  void beginListProperty(const char* name);

  void beginInlineListProperty(const char* name);

  void value(const char* format, ...) MOZ_FORMAT_PRINTF(2, 3);

  void value(int value);

  void boolProperty(const char* name, bool value);

  void property(const char* name, JSLinearString* value);

  void property(const char* name, const char* value);

  void property(const char* name, int32_t value);

  void property(const char* name, uint32_t value);

  void property(const char* name, int64_t value);

  void property(const char* name, uint64_t value);

#if defined(XP_DARWIN) || defined(__OpenBSD__) || defined(__wasi__)

  // On OSX and OpenBSD, size_t is long unsigned, uint32_t is unsigned, and

  // uint64_t is long long unsigned. Everywhere else, size_t matches either

  // uint32_t or uint64_t.

  void property(const char* name, size_t value);

#endif

  void formatProperty(const char* name, const char* format, ...)

      MOZ_FORMAT_PRINTF(3, 4);

  void formatPropertyVA(const char* name, const char* format, va_list ap);

  void propertyName(const char* name);

  // JSON requires decimals to be separated by periods, but the LC_NUMERIC

  // setting may cause printf to use commas in some locales.

  enum TimePrecision { SECONDS, MILLISECONDS, MICROSECONDS };

  void property(const char* name, const mozilla::TimeDuration& dur,

                TimePrecision precision);

  void floatProperty(const char* name, double value, size_t precision);

  GenericPrinter& beginStringProperty(const char* name);

  void endStringProperty();

  GenericPrinter& beginString();

  void endString();

  void nullProperty(const char* name);

  void nullValue();

  void endObject();

  void endList();

  void endInlineList();

  // Notify the output that the caller has detected OOM and should transition

  // to its saw-OOM state.

  void outOfMemory() { out_.reportOutOfMemory(); }

 protected:

  void beginInline();

  void endInline();

};

}  // namespace js

#endif /* vm_JSONPrinter_h */