tor-browser

The Tor Browser
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JSONPrinter.h (2795B)

      1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
      2 * vim: set ts=8 sts=2 et sw=2 tw=80:
      3 * This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #ifndef vm_JSONPrinter_h
      8 #define vm_JSONPrinter_h
      9 
     10 #include "mozilla/TimeStamp.h"
     11 
     12 #include <stdio.h>
     13 
     14 #include "js/Printer.h"
     15 #include "js/TypeDecls.h"
     16 
     17 class JSLinearString;
     18 
     19 namespace js {
     20 
     21 class JSONPrinter {
     22 protected:
     23  int indentLevel_ = 0;
     24  int inlineLevel_ = 0;
     25  bool indent_;
     26  bool first_ = true;
     27  GenericPrinter& out_;
     28 
     29  void indent();
     30 
     31  void beforeValue();
     32 
     33 public:
     34  explicit JSONPrinter(GenericPrinter& out, bool indent = true)
     35      : indent_(indent), out_(out) {}
     36 
     37  void setIndentLevel(int indentLevel) { indentLevel_ = indentLevel; }
     38 
     39  void beginObject();
     40  void beginList();
     41  void beginObjectProperty(const char* name);
     42  void beginListProperty(const char* name);
     43  void beginInlineListProperty(const char* name);
     44 
     45  void value(const char* format, ...) MOZ_FORMAT_PRINTF(2, 3);
     46  void value(int value);
     47 
     48  void boolProperty(const char* name, bool value);
     49 
     50  void property(const char* name, const JSLinearString* value);
     51  void property(const char* name, const char* value);
     52  void property(const char* name, int32_t value);
     53  void property(const char* name, uint32_t value);
     54  void property(const char* name, int64_t value);
     55  void property(const char* name, uint64_t value);
     56 #if defined(XP_DARWIN) || defined(__OpenBSD__) || defined(__wasi__)
     57  // On OSX and OpenBSD, size_t is long unsigned, uint32_t is unsigned, and
     58  // uint64_t is long long unsigned. Everywhere else, size_t matches either
     59  // uint32_t or uint64_t.
     60  void property(const char* name, size_t value);
     61 #endif
     62 
     63  void formatProperty(const char* name, const char* format, ...)
     64      MOZ_FORMAT_PRINTF(3, 4);
     65  void formatPropertyVA(const char* name, const char* format, va_list ap);
     66 
     67  void propertyName(const char* name);
     68 
     69  // JSON requires decimals to be separated by periods, but the LC_NUMERIC
     70  // setting may cause printf to use commas in some locales.
     71  enum TimePrecision { SECONDS, MILLISECONDS, MICROSECONDS };
     72  void property(const char* name, const mozilla::TimeDuration& dur,
     73                TimePrecision precision);
     74 
     75  void floatProperty(const char* name, double value, size_t precision);
     76 
     77  GenericPrinter& beginStringProperty(const char* name);
     78  void endStringProperty();
     79 
     80  GenericPrinter& beginString();
     81  void endString();
     82 
     83  void nullProperty(const char* name);
     84  void nullValue();
     85 
     86  void endObject();
     87  void endList();
     88  void endInlineList();
     89 
     90 protected:
     91  void beginInline();
     92  void endInline();
     93 };
     94 
     95 }  // namespace js
     96 
     97 #endif /* vm_JSONPrinter_h */