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Protocol Buffers - Google's data interchange format (grpc依赖) https://developers.google.com/protocol-buffers/
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protobuf/upb_struct.c

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Rethought upb_struct and new descriptor.h. This is the next step in bootstrapping. upb_struct defines the in-memory layout that will be used by both compile-time and run-time defintions of protobufs. descriptor.h describes the proto format using this format. The next step is to create a descriptor.c that can parse descriptor protos into this format. Then real run-time reflection can begin.
16 years ago
/*
* upb - a minimalist implementation of protocol buffers.
*
* Definitions that will emit code for inline functions, per C99 inlining
* rules (see http://www.greenend.org.uk/rjk/2003/03/inline.html).
*/
#include "upb_struct.h"
#define UPB_DECLARE_ACCESSORS(ctype, name) \
extern ctype *upb_struct_get_ ## name ## _ptr( \
uint8_t *s, struct upb_struct_field *f); \
extern ctype upb_struct_get_ ## name( \
uint8_t *s, struct upb_struct_field *f); \
extern void upb_struct_set_ ## name( \
uint8_t *s, struct upb_struct_field *f, ctype val);
#define UPB_DECLARE_ARRAY_ACCESSORS(ctype, name) \
extern ctype *upb_array_get_ ## name ## _ptr(struct upb_array *a, int n); \
extern ctype upb_array_get_ ## name(struct upb_array *a, int n); \
extern void upb_array_set_ ## name(struct upb_array *a, int n, ctype val);
#define UPB_DECLARE_ALL_ACCESSORS(ctype, name) \
UPB_DECLARE_ACCESSORS(ctype, name) \
UPB_DECLARE_ARRAY_ACCESSORS(ctype, name)
UPB_DECLARE_ALL_ACCESSORS(double, double)
UPB_DECLARE_ALL_ACCESSORS(float, float)
UPB_DECLARE_ALL_ACCESSORS(int32_t, int32)
UPB_DECLARE_ALL_ACCESSORS(int64_t, int64)
UPB_DECLARE_ALL_ACCESSORS(uint32_t, uint32)
UPB_DECLARE_ALL_ACCESSORS(uint64_t, uint64)
UPB_DECLARE_ALL_ACCESSORS(bool, bool)
UPB_DECLARE_ALL_ACCESSORS(struct upb_struct_delimited*, bytes)
UPB_DECLARE_ALL_ACCESSORS(struct upb_struct_delimited*, string)
UPB_DECLARE_ALL_ACCESSORS(uint8_t*, substruct)
UPB_DECLARE_ACCESSORS(struct upb_array*, array)
extern void upb_struct_set(uint8_t *s, struct upb_struct_field *f);
extern void upb_struct_unset(uint8_t *s, struct upb_struct_field *f);
extern bool upb_struct_is_set(uint8_t *s, struct upb_struct_field *f);
extern bool upb_struct_all_required_fields_set(
uint8_t *s, struct upb_struct_definition *d);
extern void upb_struct_clear(uint8_t *s, struct upb_struct_definition *d);
A bunch more work, a fast table for field lookup.
16 years ago