Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
61 lines
1.9 KiB
61 lines
1.9 KiB
16 years ago
|
/*
|
||
|
|
* upb - a minimalist implementation of protocol buffers.
|
||
|
|
*
|
||
|
|
* Copyright (c) 2009 Joshua Haberman. See LICENSE for details.
|
||
|
|
*
|
||
|
|
* upb_enum is a simple object that allows run-time reflection over the values
|
||
|
|
* defined within an enum. */
|
||
|
|
|
||
|
|
#ifndef UPB_ENUM_H_
|
||
|
|
#define UPB_ENUM_H_
|
||
|
|
|
||
|
|
#include <stdint.h>
|
||
|
|
#include "upb_table.h"
|
||
|
|
|
||
|
|
/* Forward declaration from descriptor.h. */
|
||
|
|
struct google_protobuf_EnumDescriptorProto;
|
||
|
|
struct google_protobuf_EnumValueDescriptorProto;
|
||
|
|
|
||
|
|
struct upb_enum {
|
||
|
|
struct google_protobuf_EnumDescriptorProto *descriptor;
|
||
|
|
struct upb_strtable nametoint;
|
||
|
|
struct upb_inttable inttoname;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct upb_enum_ntoi_entry {
|
||
|
|
struct upb_strtable_entry e;
|
||
|
|
uint32_t value;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct upb_enum_iton_entry {
|
||
|
|
struct upb_inttable_entry e;
|
||
|
|
struct upb_string *string;
|
||
|
|
};
|
||
|
|
|
||
|
|
/* Initializes and frees an enum, respectively. Caller retains ownership of
|
||
|
|
* ed, but it must outlive e. */
|
||
|
|
INLINE void upb_enum_init(struct upb_enum *e,
|
||
|
|
struct google_protobuf_EnumDescriptorProto *ed) {
|
||
|
|
int num_values = ed->set_flags.has.value ? ed->value->len : 0;
|
||
|
|
e->descriptor = ed;
|
||
|
|
upb_strtable_init(&e->nametoint, num_values, sizeof(struct upb_enum_ntoi_entry));
|
||
|
|
upb_inttable_init(&e->inttoname, num_values, sizeof(struct upb_enum_iton_entry));
|
||
|
|
|
||
|
|
for(int i = 0; i < num_values; i++) {
|
||
|
|
google_protobuf_EnumValueDescriptorProto *value = ed->value->elements[i];
|
||
|
|
struct upb_enum_ntoi_entry ntoi_entry = {.e = {.key = *value->name},
|
||
|
|
.value = value->number};
|
||
|
|
struct upb_enum_iton_entry iton_entry = {.e = {.key = value->number},
|
||
|
|
.string = value->name};
|
||
|
|
upb_strtable_insert(&e->nametoint, &ntoi_entry.e);
|
||
|
|
upb_inttable_insert(&e->inttoname, &iton_entry.e);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
INLINE void upb_enum_free(struct upb_enum *e) {
|
||
|
|
upb_strtable_free(&e->nametoint);
|
||
|
|
upb_inttable_free(&e->inttoname);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* UPB_ENUM_H_ */
|