env/protobuf-3.17.0/objectivec/GPBExtensionInternals.h

// Protocol Buffers - Google's data interchange format
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#import <Foundation/Foundation.h>

#import "GPBDescriptor.h"

@class GPBCodedInputStream;
@class GPBCodedOutputStream;
@class GPBExtensionRegistry;

void GPBExtensionMergeFromInputStream(GPBExtensionDescriptor *extension,
                                      BOOL isPackedOnStream,
                                      GPBCodedInputStream *input,
                                      GPBExtensionRegistry *extensionRegistry,
                                      GPBMessage *message);

size_t GPBComputeExtensionSerializedSizeIncludingTag(
    GPBExtensionDescriptor *extension, id value);

void GPBWriteExtensionValueToOutputStream(GPBExtensionDescriptor *extension,
                                          id value,
                                          GPBCodedOutputStream *output);