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/*
* upb - a minimalist implementation of protocol buffers.
*
* Copyright (c) 2011 Google Inc. See LICENSE for details.
* Author: Josh Haberman <jhaberman@gmail.com>
*
* upb::descriptor::Reader provides a way of building upb::Defs from
* data in descriptor.proto format.
*/
#ifndef UPB_DESCRIPTOR_H
#define UPB_DESCRIPTOR_H
#include "upb/handlers.h"
#ifdef __cplusplus
namespace upb {
namespace descriptor {
// Frame type that accumulates defs as they are being built from a descriptor
// according to the descriptor.proto schema.
class Reader;
// Gets the array of defs that have been parsed and removes them from the
// descreader. Ownership of the defs is passed to the caller using the given
// owner), but the ownership of the returned array is retained and is
// invalidated by any other call into the descreader. The defs will not have
// been resolved, and are ready to be added to a symtab.
inline upb::Def** GetDefs(Reader* r, void* owner, int* n);
// Gets the handlers for reading a FileDescriptorSet, which builds defs and
// accumulates them in a Reader object (which the handlers use as their
// FrameType).
inline const upb::Handlers* GetReaderHandlers(const void* owner);
} // namespace descriptor
} // namespace upb
typedef upb::descriptor::Reader upb_descreader;
extern "C" {
#else
struct upb_descreader;
typedef struct upb_descreader upb_descreader;
#endif
// C API.
const upb_frametype *upb_descreader_getframetype();
upb_def **upb_descreader_getdefs(upb_descreader *r, void *owner, int *n);
const upb_handlers *upb_descreader_gethandlers(const void *owner);
// C++ implementation details. /////////////////////////////////////////////////
#ifdef __cplusplus
} // extern "C"
namespace upb {
template<> inline const FrameType* GetFrameType<upb::descriptor::Reader>() {
return upb_descreader_getframetype();
}
namespace descriptor {
inline upb::Def** GetDefs(Reader* r, void* owner, int* n) {
return upb_descreader_getdefs(r, owner, n);
}
inline const upb::Handlers* GetReaderHandlers(const void* owner) {
return upb_descreader_gethandlers(owner);
}
} // namespace descriptor
} // namespace upb
#endif
#endif // UPB_DESCRIPTOR_H
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