1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
use std::collections::HashMap;
use crate::descriptor::EnumDescriptorProto;
use crate::descriptor::EnumValueDescriptorProto;
use crate::descriptor::FileDescriptorProto;
use crate::descriptorx::find_enum_by_rust_name;
use crate::reflect::find_message_or_enum::find_message_or_enum;
use crate::reflect::find_message_or_enum::MessageOrEnum;
use crate::ProtobufEnum;
#[derive(Clone, Debug)]
pub struct EnumValueDescriptor {
proto: &'static EnumValueDescriptorProto,
}
impl Copy for EnumValueDescriptor {}
impl EnumValueDescriptor {
pub fn name(&self) -> &'static str {
self.proto.get_name()
}
pub fn value(&self) -> i32 {
self.proto.get_number()
}
}
pub struct EnumDescriptor {
proto: &'static EnumDescriptorProto,
values: Vec<EnumValueDescriptor>,
index_by_name: HashMap<String, usize>,
index_by_number: HashMap<i32, usize>,
}
impl EnumDescriptor {
pub fn name(&self) -> &'static str {
self.proto.get_name()
}
pub fn for_type<E: ProtobufEnum>() -> &'static EnumDescriptor {
E::enum_descriptor_static()
}
#[deprecated(
since = "2.12",
note = "Please regenerate .rs files from .proto files to use newer APIs"
)]
pub fn new(rust_name: &'static str, file: &'static FileDescriptorProto) -> EnumDescriptor {
let proto = find_enum_by_rust_name(file, rust_name);
let mut index_by_name = HashMap::new();
let mut index_by_number = HashMap::new();
for (i, v) in proto.en.get_value().iter().enumerate() {
index_by_number.insert(v.get_number(), i);
index_by_name.insert(v.get_name().to_string(), i);
}
EnumDescriptor {
proto: proto.en,
values: proto
.en
.get_value()
.iter()
.map(|v| EnumValueDescriptor { proto: v })
.collect(),
index_by_name: index_by_name,
index_by_number: index_by_number,
}
}
pub fn new_pb_name<E>(
name_in_file: &'static str,
file: &'static FileDescriptorProto,
) -> EnumDescriptor
where
E: ProtobufEnum,
{
let (_path_to_package, proto) = match find_message_or_enum(file, name_in_file) {
(path_to_package, MessageOrEnum::Enum(e)) => (path_to_package, e),
(_, MessageOrEnum::Message(_)) => panic!("not an enum"),
};
let mut index_by_name = HashMap::new();
let mut index_by_number = HashMap::new();
for (i, v) in proto.get_value().iter().enumerate() {
index_by_number.insert(v.get_number(), i);
index_by_name.insert(v.get_name().to_string(), i);
}
EnumDescriptor {
proto,
values: proto
.get_value()
.iter()
.map(|v| EnumValueDescriptor { proto: v })
.collect(),
index_by_name: index_by_name,
index_by_number: index_by_number,
}
}
pub fn value_by_name<'a>(&'a self, name: &str) -> &'a EnumValueDescriptor {
let &index = self.index_by_name.get(&name.to_string()).unwrap();
&self.values[index]
}
pub fn value_by_number<'a>(&'a self, number: i32) -> &'a EnumValueDescriptor {
let &index = self.index_by_number.get(&number).unwrap();
&self.values[index]
}
}