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/*
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** upb::pb::Encoder (upb_pb_encoder)
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**
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** Implements a set of upb_handlers that write protobuf data to the binary wire
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** format.
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**
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** This encoder implementation does not have any access to any out-of-band or
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** precomputed lengths for submessages, so it must buffer submessages internally
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** before it can emit the first byte.
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*/
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#ifndef UPB_ENCODER_H_
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#define UPB_ENCODER_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 pb {
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class Encoder;
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} /* namespace pb */
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} /* namespace upb */
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#endif
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UPB_DECLARE_TYPE(upb::pb::Encoder, upb_pb_encoder)
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#define UPB_PBENCODER_MAX_NESTING 100
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/* upb::pb::Encoder ***********************************************************/
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/* Preallocation hint: decoder won't allocate more bytes than this when first
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* constructed. This hint may be an overestimate for some build configurations.
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* But if the decoder library is upgraded without recompiling the application,
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* it may be an underestimate. */
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#define UPB_PB_ENCODER_SIZE 768
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#ifdef __cplusplus
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class upb::pb::Encoder {
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public:
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/* Creates a new encoder in the given environment. The Handlers must have
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* come from NewHandlers() below. */
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static Encoder* Create(Environment* env, const Handlers* handlers,
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BytesSink* output);
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/* The input to the encoder. */
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Sink* input();
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/* Creates a new set of handlers for this MessageDef. */
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static reffed_ptr<const Handlers> NewHandlers(const MessageDef* msg);
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static const size_t kSize = UPB_PB_ENCODER_SIZE;
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private:
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UPB_DISALLOW_POD_OPS(Encoder, upb::pb::Encoder)
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};
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#endif
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UPB_BEGIN_EXTERN_C
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const upb_handlers *upb_pb_encoder_newhandlers(const upb_msgdef *m,
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const void *owner);
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upb_sink *upb_pb_encoder_input(upb_pb_encoder *p);
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upb_pb_encoder* upb_pb_encoder_create(upb_env* e, const upb_handlers* h,
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upb_bytessink* output);
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UPB_END_EXTERN_C
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#ifdef __cplusplus
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namespace upb {
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namespace pb {
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inline Encoder* Encoder::Create(Environment* env, const Handlers* handlers,
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BytesSink* output) {
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return upb_pb_encoder_create(env, handlers, output);
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}
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inline Sink* Encoder::input() {
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return upb_pb_encoder_input(this);
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}
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inline reffed_ptr<const Handlers> Encoder::NewHandlers(
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const upb::MessageDef *md) {
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const Handlers* h = upb_pb_encoder_newhandlers(md, &h);
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return reffed_ptr<const Handlers>(h, &h);
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}
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} /* namespace pb */
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} /* namespace upb */
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#endif
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#endif /* UPB_ENCODER_H_ */
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