dom/interfaces/json/nsIJSON.idl
author Ted Mielczarek <ted.mielczarek@gmail.com>
Wed, 17 Aug 2011 13:26:26 -0400
changeset 77022 20e301ec28a0569379c03f42bfeb375a2638a014
parent 76043 e0634a052db43cb63d2b17d47b31622843653392
child 82461 5ceda0cdb5ccc264c49d59d5ef7a3abe02c6c480
permissions -rw-r--r--
bug 677671 - Add unit tests for xpidl.py. r=khuey

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * Contributor(s):
 *   Robert Sayre <sayrer@gmail.com>
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#include "domstubs.idl"

interface nsIInputStream;
interface nsIOutputStream;
interface nsIScriptGlobalObject;

[ptr] native JSValPtr(jsval);
[ptr] native JSContext(JSContext);

/**
 * Encode and decode JSON text.
 */
[scriptable, uuid(a4d68b4e-0c0b-4c7c-b540-ef2f9834171f)]
interface nsIJSON : nsISupports
{
  /**
   * New users should use JSON.stringify!
   * The encode() method is only present for backward compatibility.
   * encode() is not a conforming JSON stringify implementation!
   */
  [deprecated] AString encode(/* in JSObject value */);

  /**
   * New users should use JSON.stringify.
   * You may also want to have a look at nsIConverterOutputStream.
   *
   * The encodeToStream() method is only present for backward compatibility.
   * encodeToStream() is not a conforming JSON stringify implementation!
   */
  [deprecated] void encodeToStream(in nsIOutputStream stream,
                                   in string charset,
                                   in boolean writeBOM
                                   /* in JSObject value */);

  /**
   * New users should use JSON.parse!
   * The decode() method is only present for backward compatibility.
   */
  [deprecated] void /* JSObject */ decode(in AString str);

  void /* JSObject */ decodeFromStream(in nsIInputStream stream,
                                       in long contentLength);

  [noscript] AString  encodeFromJSVal(in JSValPtr value, in JSContext cx);

  // Make sure you GCroot the result of this function before using it.
  [noscript] jsval    decodeToJSVal(in AString str, in JSContext cx);


  /*
   * Decode a JSON string, but also accept some strings in non-JSON format, as
   * the decoding methods here did previously before tightening.
   *
   * This method is provided only as a temporary transition path for users of
   * the old code who depended on the ability to decode leniently; new users
   * should use JSON.parse.
   *
   * This method must only be called from script.
   *
   * @param str the string to parse
   */
  void /* jsval */ legacyDecode(in AString str);

  /* Identical to legacyDecode, but decode the contents of stream. */
  void /* jsval */ legacyDecodeFromStream(in nsIInputStream stream,
                                          in long contentLength);

  /* Identical to legacyDecode, but decode into a jsval. */
  // Make sure you GCroot the result of this function before using it.
  [noscript] jsval    legacyDecodeToJSVal(in AString str, in JSContext cx);
};