Revert "third_party/protobuf: Update to HEAD (83d681ee2c)"

third_party/protobuf/objectivec/GPBCodedInputStream.h

Index: third_party/protobuf/objectivec/GPBCodedInputStream.h
diff --git a/third_party/protobuf/objectivec/GPBCodedInputStream.h b/third_party/protobuf/objectivec/GPBCodedInputStream.h
index fbe5009c92b82380dc97d207adf3832004e83966..d64b64e3f3d655b70a778db6d60f08bf2a24c0e6 100644
--- a/third_party/protobuf/objectivec/GPBCodedInputStream.h
+++ b/third_party/protobuf/objectivec/GPBCodedInputStream.h
@@ -35,217 +35,94 @@
 
 NS_ASSUME_NONNULL_BEGIN
 
-CF_EXTERN_C_BEGIN
-
-/**
- * @c GPBCodedInputStream exception name. Exceptions raised from
- * @c GPBCodedInputStream contain an underlying error in the userInfo dictionary
- * under the GPBCodedInputStreamUnderlyingErrorKey key.
- **/
-extern NSString *const GPBCodedInputStreamException;
-
-/** The key under which the underlying NSError from the exception is stored. */
-extern NSString *const GPBCodedInputStreamUnderlyingErrorKey;
-
-/** NSError domain used for @c GPBCodedInputStream errors. */
-extern NSString *const GPBCodedInputStreamErrorDomain;
-
-/**
- * Error code for NSError with @c GPBCodedInputStreamErrorDomain.
- **/
-typedef NS_ENUM(NSInteger, GPBCodedInputStreamErrorCode) {
-  /** The size does not fit in the remaining bytes to be read. */
-  GPBCodedInputStreamErrorInvalidSize = -100,
-  /** Attempted to read beyond the subsection limit. */
-  GPBCodedInputStreamErrorSubsectionLimitReached = -101,
-  /** The requested subsection limit is invalid. */
-  GPBCodedInputStreamErrorInvalidSubsectionLimit = -102,
-  /** Invalid tag read. */
-  GPBCodedInputStreamErrorInvalidTag = -103,
-  /** Invalid UTF-8 character in a string. */
-  GPBCodedInputStreamErrorInvalidUTF8 = -104,
-  /** Invalid VarInt read. */
-  GPBCodedInputStreamErrorInvalidVarInt = -105,
-  /** The maximum recursion depth of messages was exceeded. */
-  GPBCodedInputStreamErrorRecursionDepthExceeded = -106,
-};
-
-CF_EXTERN_C_END
-
-/**
- * Reads and decodes protocol message fields.
- *
- * The common uses of protocol buffers shouldn't need to use this class.
- * @c GPBMessage's provide a @c +parseFromData:error: and
- * @c +parseFromData:extensionRegistry:error: method that will decode a
- * message for you.
- *
- * @note Subclassing of @c GPBCodedInputStream is NOT supported.
- **/
+/// Reads and decodes protocol message fields.
+///
+/// The common uses of protocol buffers shouldn't need to use this class.
+/// @c GPBMessage's provide a @c +parseFromData:error: and @c
+/// +parseFromData:extensionRegistry:error: method that will decode a
+/// message for you.
+///
+/// @note Subclassing of GPBCodedInputStream is NOT supported.
 @interface GPBCodedInputStream : NSObject
 
-/**
- * Creates a new stream wrapping some data.
- *
- * @param data The data to wrap inside the stream.
- *
- * @return A newly instanced GPBCodedInputStream.
- **/
+/// Creates a new stream wrapping some data.
 + (instancetype)streamWithData:(NSData *)data;
 
-/**
- * Initializes a stream wrapping some data.
- *
- * @param data The data to wrap inside the stream.
- *
- * @return A newly initialized GPBCodedInputStream.
- **/
+/// Initializes a stream wrapping some data.
 - (instancetype)initWithData:(NSData *)data;
 
-/**
- * Attempts to read a field tag, returning zero if we have reached EOF.
- * Protocol message parsers use this to read tags, since a protocol message
- * may legally end wherever a tag occurs, and zero is not a valid tag number.
- *
- * @return The field tag, or zero if EOF was reached.
- **/
+/// Attempt to read a field tag, returning zero if we have reached EOF.
+/// Protocol message parsers use this to read tags, since a protocol message
+/// may legally end wherever a tag occurs, and zero is not a valid tag number.
 - (int32_t)readTag;
 
-/**
- * @return A double read from the stream.
- **/
+/// Read and return a double.
 - (double)readDouble;
-/**
- * @return A float read from the stream.
- **/
+/// Read and return a float.
 - (float)readFloat;
-/**
- * @return A uint64 read from the stream.
- **/
+/// Read and return a uint64.
 - (uint64_t)readUInt64;
-/**
- * @return A uint32 read from the stream.
- **/
+/// Read and return a uint32.
 - (uint32_t)readUInt32;
-/**
- * @return An int64 read from the stream.
- **/
+/// Read and return an int64.
 - (int64_t)readInt64;
-/**
- * @return An int32 read from the stream.
- **/
+/// Read and return an int32.
 - (int32_t)readInt32;
-/**
- * @return A fixed64 read from the stream.
- **/
+/// Read and return a fixed64.
 - (uint64_t)readFixed64;
-/**
- * @return A fixed32 read from the stream.
- **/
+/// Read and return a fixed32.
 - (uint32_t)readFixed32;
-/**
- * @return An enum read from the stream.
- **/
+/// Read and return an enum (int).
 - (int32_t)readEnum;
-/**
- * @return A sfixed32 read from the stream.
- **/
+/// Read and return a sfixed32.
 - (int32_t)readSFixed32;
-/**
- * @return A fixed64 read from the stream.
- **/
+/// Read and return a sfixed64.
 - (int64_t)readSFixed64;
-/**
- * @return A sint32 read from the stream.
- **/
+/// Read and return a sint32.
 - (int32_t)readSInt32;
-/**
- * @return A sint64 read from the stream.
- **/
+/// Read and return a sint64.
 - (int64_t)readSInt64;
-/**
- * @return A boolean read from the stream.
- **/
+/// Read and return a boolean.
 - (BOOL)readBool;
-/**
- * @return A string read from the stream.
- **/
+/// Read and return a string.
 - (NSString *)readString;
-/**
- * @return Data read from the stream.
- **/
+/// Read and return length delimited data.
 - (NSData *)readBytes;
 
-/**
- * Read an embedded message field value from the stream.
- *
- * @param message           The message to set fields on as they are read.
- * @param extensionRegistry An optional extension registry to use to lookup
- *                          extensions for message.
- **/
+/// Read an embedded message field value from the stream.
+///
+/// @param message           The message to set fields on as they are read.
+/// @param extensionRegistry An optional extension registry to use to lookup
+///                          extensions for @message.
 - (void)readMessage:(GPBMessage *)message
   extensionRegistry:(nullable GPBExtensionRegistry *)extensionRegistry;
 
-/**
- * Reads and discards a single field, given its tag value.
- *
- * @param tag The tag number of the field to skip.
- *
- * @return NO if the tag is an endgroup tag (in which case nothing is skipped),
- *         YES in all other cases.
- **/
+/// Reads and discards a single field, given its tag value.
+///
+/// @param tag The tag number of the field to skip.
+///
+/// @return NO if the tag is an endgroup tag (in which case nothing is skipped),
+///         YES in all other cases.
 - (BOOL)skipField:(int32_t)tag;
 
-/**
- * Reads and discards an entire message. This will read either until EOF or
- * until an endgroup tag, whichever comes first.
- **/
+/// Reads and discards an entire message.  This will read either until EOF
+/// or until an endgroup tag, whichever comes first.
 - (void)skipMessage;
 
-/**
- * Check to see if the logical end of the stream has been reached.
- *
- * @note This can return NO when there is no more data, but the current parsing
- *       expected more data.
- *
- * @return YES if the logical end of the stream has been reached, NO otherwise.
- **/
+/// Check to see if the logical end of the stream has been reached.
+///
+/// This can return NO when there is no more data, but the current parsing
+/// expected more data.
 - (BOOL)isAtEnd;
 
-/**
- * @return The offset into the stream.
- **/
+/// The offset into the stream.
 - (size_t)position;
 
-/**
- * Moves the limit to the given byte offset starting at the current location.
- *
- * @exception GPBCodedInputStreamException If the requested bytes exceeed the
- *            current limit.
- *
- * @param byteLimit The number of bytes to move the limit, offset to the current
- *                  location.
- *
- * @return The limit offset before moving the new limit.
- */
-- (size_t)pushLimit:(size_t)byteLimit;
-
-/**
- * Moves the limit back to the offset as it was before calling pushLimit:.
- *
- * @param oldLimit The number of bytes to move the current limit. Usually this
- *                 is the value returned by the pushLimit: method.
- */
-- (void)popLimit:(size_t)oldLimit;
-
-/**
- * Verifies that the last call to -readTag returned the given tag value. This
- * is used to verify that a nested group ended with the correct end tag.
- *
- * @exception NSParseErrorException If the value does not match the last tag.
- *
- * @param expected The tag that was expected.
- **/
+/// Verifies that the last call to @c -readTag returned the given tag value.
+/// This is used to verify that a nested group ended with the correct end tag.
+/// Throws @c NSParseErrorException if value does not match the last tag.
+///
+/// @param expected The tag that was expected.
 - (void)checkLastTagWas:(int32_t)expected;
 
 @end