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// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
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// this software without specific prior written permission.
//
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package com.google.protobuf;
import java.io.IOException;
import java.util.Map;
abstract class ExtensionSchema> {
/** Returns true for messages that support extensions. */
abstract boolean hasExtensions(MessageLite prototype);
/** Returns the extension {@link FieldSet} for the message instance. */
abstract FieldSet getExtensions(Object message);
/** Replaces the extension {@link FieldSet} for the message instance. */
abstract void setExtensions(Object message, FieldSet extensions);
/** Returns the extension {@link FieldSet} and ensures it's mutable. */
abstract FieldSet getMutableExtensions(Object message);
/** Marks the extension {@link FieldSet} as immutable. */
abstract void makeImmutable(Object message);
/**
* Parses an extension. Returns the passed-in unknownFields parameter if no unknown enum value is
* found or a modified unknownFields (a new instance if the passed-in unknownFields is null)
* containing unknown enum values found while parsing.
*
* @param The type used to store unknown fields. It's either UnknownFieldSet in full runtime
* or UnknownFieldSetLite in lite runtime.
*/
abstract UB parseExtension(
Object containerMessage,
Reader reader,
Object extension,
ExtensionRegistryLite extensionRegistry,
FieldSet extensions,
UB unknownFields,
UnknownFieldSchema unknownFieldSchema)
throws IOException;
/** Gets the field number of an extension entry. */
abstract int extensionNumber(Map.Entry extension);
/** Serializes one extension entry. */
abstract void serializeExtension(Writer writer, Map.Entry extension) throws IOException;
/** Finds an extension by field number. */
abstract Object findExtensionByNumber(
ExtensionRegistryLite extensionRegistry, MessageLite defaultInstance, int number);
/** Parses a length-prefixed MessageSet item from the reader. */
abstract void parseLengthPrefixedMessageSetItem(
Reader reader,
Object extension,
ExtensionRegistryLite extensionRegistry,
FieldSet extensions)
throws IOException;
/**
* Parses the entire content of a {@link ByteString} as one MessageSet item. Unlike {@link
* #parseLengthPrefixedMessageSetItem}, there isn't a length-prefix.
*/
abstract void parseMessageSetItem(
ByteString data,
Object extension,
ExtensionRegistryLite extensionRegistry,
FieldSet extensions)
throws IOException;
}