GPBCodedInputStream_PackagePrivate.h 5.1 KB

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  1. // Protocol Buffers - Google's data interchange format
  2. // Copyright 2008 Google Inc. All rights reserved.
  3. // https://developers.google.com/protocol-buffers/
  4. //
  5. // Redistribution and use in source and binary forms, with or without
  6. // modification, are permitted provided that the following conditions are
  7. // met:
  8. //
  9. // * Redistributions of source code must retain the above copyright
  10. // notice, this list of conditions and the following disclaimer.
  11. // * Redistributions in binary form must reproduce the above
  12. // copyright notice, this list of conditions and the following disclaimer
  13. // in the documentation and/or other materials provided with the
  14. // distribution.
  15. // * Neither the name of Google Inc. nor the names of its
  16. // contributors may be used to endorse or promote products derived from
  17. // this software without specific prior written permission.
  18. //
  19. // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  20. // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  21. // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  22. // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  23. // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  24. // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  25. // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  26. // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  27. // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  28. // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  29. // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30. // This header is private to the ProtobolBuffers library and must NOT be
  31. // included by any sources outside this library. The contents of this file are
  32. // subject to change at any time without notice.
  33. #import "GPBCodedInputStream.h"
  34. @class GPBUnknownFieldSet;
  35. @class GPBFieldDescriptor;
  36. typedef struct GPBCodedInputStreamState {
  37. const uint8_t *bytes;
  38. size_t bufferSize;
  39. size_t bufferPos;
  40. // For parsing subsections of an input stream you can put a hard limit on
  41. // how much should be read. Normally the limit is the end of the stream,
  42. // but you can adjust it to anywhere, and if you hit it you will be at the
  43. // end of the stream, until you adjust the limit.
  44. size_t currentLimit;
  45. int32_t lastTag;
  46. NSUInteger recursionDepth;
  47. } GPBCodedInputStreamState;
  48. @interface GPBCodedInputStream () {
  49. @package
  50. struct GPBCodedInputStreamState state_;
  51. NSData *buffer_;
  52. }
  53. // Group support is deprecated, so we hide this interface from users, but
  54. // support for older data.
  55. - (void)readGroup:(int32_t)fieldNumber
  56. message:(GPBMessage *)message
  57. extensionRegistry:(GPBExtensionRegistry *)extensionRegistry;
  58. // Reads a group field value from the stream and merges it into the given
  59. // UnknownFieldSet.
  60. - (void)readUnknownGroup:(int32_t)fieldNumber
  61. message:(GPBUnknownFieldSet *)message;
  62. // Reads a map entry.
  63. - (void)readMapEntry:(id)mapDictionary
  64. extensionRegistry:(GPBExtensionRegistry *)extensionRegistry
  65. field:(GPBFieldDescriptor *)field
  66. parentMessage:(GPBMessage *)parentMessage;
  67. @end
  68. CF_EXTERN_C_BEGIN
  69. int32_t GPBCodedInputStreamReadTag(GPBCodedInputStreamState *state);
  70. double GPBCodedInputStreamReadDouble(GPBCodedInputStreamState *state);
  71. float GPBCodedInputStreamReadFloat(GPBCodedInputStreamState *state);
  72. uint64_t GPBCodedInputStreamReadUInt64(GPBCodedInputStreamState *state);
  73. uint32_t GPBCodedInputStreamReadUInt32(GPBCodedInputStreamState *state);
  74. int64_t GPBCodedInputStreamReadInt64(GPBCodedInputStreamState *state);
  75. int32_t GPBCodedInputStreamReadInt32(GPBCodedInputStreamState *state);
  76. uint64_t GPBCodedInputStreamReadFixed64(GPBCodedInputStreamState *state);
  77. uint32_t GPBCodedInputStreamReadFixed32(GPBCodedInputStreamState *state);
  78. int32_t GPBCodedInputStreamReadEnum(GPBCodedInputStreamState *state);
  79. int32_t GPBCodedInputStreamReadSFixed32(GPBCodedInputStreamState *state);
  80. int64_t GPBCodedInputStreamReadSFixed64(GPBCodedInputStreamState *state);
  81. int32_t GPBCodedInputStreamReadSInt32(GPBCodedInputStreamState *state);
  82. int64_t GPBCodedInputStreamReadSInt64(GPBCodedInputStreamState *state);
  83. BOOL GPBCodedInputStreamReadBool(GPBCodedInputStreamState *state);
  84. NSString *GPBCodedInputStreamReadRetainedString(GPBCodedInputStreamState *state)
  85. __attribute((ns_returns_retained));
  86. NSData *GPBCodedInputStreamReadRetainedBytes(GPBCodedInputStreamState *state)
  87. __attribute((ns_returns_retained));
  88. NSData *GPBCodedInputStreamReadRetainedBytesNoCopy(
  89. GPBCodedInputStreamState *state) __attribute((ns_returns_retained));
  90. size_t GPBCodedInputStreamPushLimit(GPBCodedInputStreamState *state,
  91. size_t byteLimit);
  92. void GPBCodedInputStreamPopLimit(GPBCodedInputStreamState *state,
  93. size_t oldLimit);
  94. size_t GPBCodedInputStreamBytesUntilLimit(GPBCodedInputStreamState *state);
  95. BOOL GPBCodedInputStreamIsAtEnd(GPBCodedInputStreamState *state);
  96. void GPBCodedInputStreamCheckLastTagWas(GPBCodedInputStreamState *state,
  97. int32_t value);
  98. CF_EXTERN_C_END