The Tor Browser: dom/src/json/nsJSON.h@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

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

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

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

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

     6 #ifndef nsJSON_h__

     7 #define nsJSON_h__

     9 #include "nsIJSON.h"

    10 #include "nsString.h"

    11 #include "nsCOMPtr.h"

    12 #include "nsIOutputStream.h"

    13 #include "nsIUnicodeEncoder.h"

    14 #include "nsIUnicodeDecoder.h"

    15 #include "nsIRequestObserver.h"

    16 #include "nsIStreamListener.h"

    17 #include "nsTArray.h"

    19 class nsIURI;

    21 class MOZ_STACK_CLASS nsJSONWriter

    22 {

    23 public:

    24   nsJSONWriter();

    25   nsJSONWriter(nsIOutputStream *aStream);

    26   virtual ~nsJSONWriter();

    27   nsresult SetCharset(const char *aCharset);

    28   nsCOMPtr<nsIOutputStream> mStream;

    29   nsresult Write(const char16_t *aBuffer, uint32_t aLength);

    30   nsString mOutputString;

    31   bool DidWrite();

    32   void FlushBuffer();

    34 protected:

    35   char16_t *mBuffer;

    36   uint32_t mBufferCount;

    37   bool mDidWrite;

    38   nsresult WriteToStream(nsIOutputStream *aStream, nsIUnicodeEncoder *encoder,

    39                          const char16_t *aBuffer, uint32_t aLength);

    41   nsCOMPtr<nsIUnicodeEncoder> mEncoder;

    42 };

    44 class nsJSON : public nsIJSON

    45 {

    46 public:

    47   nsJSON();

    48   virtual ~nsJSON();

    50   NS_DECL_ISUPPORTS

    51   NS_DECL_NSIJSON

    53 protected:

    54   nsresult EncodeInternal(JSContext* cx,

    55                           const JS::Value& val,

    56                           nsJSONWriter* writer);

    58   nsresult DecodeInternal(JSContext* cx,

    59                           nsIInputStream* aStream,

    60                           int32_t aContentLength,

    61                           bool aNeedsConverter,

    62                           JS::MutableHandle<JS::Value> aRetVal);

    63   nsCOMPtr<nsIURI> mURI;

    64 };

    66 nsresult

    67 NS_NewJSON(nsISupports* aOuter, REFNSIID aIID, void** aResult);

    69 class nsJSONListener : public nsIStreamListener

    70 {

    71 public:

    72   nsJSONListener(JSContext *cx, JS::Value *rootVal, bool needsConverter);

    73   virtual ~nsJSONListener();

    75   NS_DECL_ISUPPORTS

    76   NS_DECL_NSIREQUESTOBSERVER

    77   NS_DECL_NSISTREAMLISTENER

    79 protected:

    80   bool mNeedsConverter;

    81   JSContext *mCx;

    82   JS::Value *mRootVal;

    83   nsCOMPtr<nsIUnicodeDecoder> mDecoder;

    84   nsCString mSniffBuffer;

    85   nsTArray<char16_t> mBufferedChars;

    86   nsresult ProcessBytes(const char* aBuffer, uint32_t aByteLength);

    87   nsresult ConsumeConverted(const char* aBuffer, uint32_t aByteLength);

    88   nsresult Consume(const char16_t *data, uint32_t len);

    89 };

    91 #endif

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