Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
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84 lines
2.4 KiB
84 lines
2.4 KiB
/* |
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** upb::descriptor::Reader (upb_descreader) |
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** |
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** Provides a way of building upb::Defs from data in descriptor.proto format. |
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*/ |
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#ifndef UPB_DESCRIPTOR_H |
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#define UPB_DESCRIPTOR_H |
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#include "upb/env.h" |
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#include "upb/sink.h" |
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#ifdef __cplusplus |
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namespace upb { |
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namespace descriptor { |
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class Reader; |
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} /* namespace descriptor */ |
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} /* namespace upb */ |
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#endif |
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UPB_DECLARE_TYPE(upb::descriptor::Reader, upb_descreader) |
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#ifdef __cplusplus |
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/* Class that receives descriptor data according to the descriptor.proto schema |
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* and use it to build upb::Defs corresponding to that schema. */ |
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class upb::descriptor::Reader { |
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public: |
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/* These handlers must have come from NewHandlers() and must outlive the |
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* Reader. |
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* |
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* TODO: generate the handlers statically (like we do with the |
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* descriptor.proto defs) so that there is no need to pass this parameter (or |
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* to build/memory-manage the handlers at runtime at all). Unfortunately this |
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* is a bit tricky to implement for Handlers, but necessary to simplify this |
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* interface. */ |
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static Reader* Create(Environment* env, const Handlers* handlers); |
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/* The reader's input; this is where descriptor.proto data should be sent. */ |
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Sink* input(); |
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/* Use to get the FileDefs that have been parsed. */ |
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size_t file_count() const; |
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FileDef* file(size_t i) const; |
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/* Builds and returns handlers for the reader, owned by "owner." */ |
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static Handlers* NewHandlers(const void* owner); |
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private: |
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UPB_DISALLOW_POD_OPS(Reader, upb::descriptor::Reader) |
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}; |
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#endif |
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UPB_BEGIN_EXTERN_C |
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/* C API. */ |
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upb_descreader *upb_descreader_create(upb_env *e, const upb_handlers *h); |
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upb_sink *upb_descreader_input(upb_descreader *r); |
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size_t upb_descreader_filecount(const upb_descreader *r); |
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upb_filedef *upb_descreader_file(const upb_descreader *r, size_t i); |
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const upb_handlers *upb_descreader_newhandlers(const void *owner); |
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UPB_END_EXTERN_C |
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#ifdef __cplusplus |
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/* C++ implementation details. ************************************************/ |
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namespace upb { |
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namespace descriptor { |
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inline Reader* Reader::Create(Environment* e, const Handlers *h) { |
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return upb_descreader_create(e, h); |
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} |
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inline Sink* Reader::input() { return upb_descreader_input(this); } |
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inline size_t Reader::file_count() const { |
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return upb_descreader_filecount(this); |
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} |
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inline FileDef* Reader::file(size_t i) const { |
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return upb_descreader_file(this, i); |
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} |
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} /* namespace descriptor */ |
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} /* namespace upb */ |
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#endif |
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#endif /* UPB_DESCRIPTOR_H */
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