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
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
/*
Copyright 2015 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package protobuf
import (
"fmt"
"reflect"
"strings"
"k8s.io/gengo/generator"
"k8s.io/gengo/namer"
"k8s.io/gengo/types"
)
type localNamer struct {
localPackage types.Name
}
func (n localNamer) Name(t *types.Type) string {
if t.Key != nil && t.Elem != nil {
return fmt.Sprintf("map<%s, %s>", n.Name(t.Key), n.Name(t.Elem))
}
if len(n.localPackage.Package) != 0 && n.localPackage.Package == t.Name.Package {
return t.Name.Name
}
return t.Name.String()
}
type protobufNamer struct {
packages []*protobufPackage
packagesByPath map[string]*protobufPackage
}
func NewProtobufNamer() *protobufNamer {
return &protobufNamer{
packagesByPath: make(map[string]*protobufPackage),
}
}
func (n *protobufNamer) Name(t *types.Type) string {
if t.Kind == types.Map {
return fmt.Sprintf("map<%s, %s>", n.Name(t.Key), n.Name(t.Elem))
}
return t.Name.String()
}
func (n *protobufNamer) List() []generator.Package {
packages := make([]generator.Package, 0, len(n.packages))
for i := range n.packages {
packages = append(packages, n.packages[i])
}
return packages
}
func (n *protobufNamer) Add(p *protobufPackage) {
if _, ok := n.packagesByPath[p.PackagePath]; !ok {
n.packagesByPath[p.PackagePath] = p
n.packages = append(n.packages, p)
}
}
func (n *protobufNamer) GoNameToProtoName(name types.Name) types.Name {
if p, ok := n.packagesByPath[name.Package]; ok {
return types.Name{
Name: name.Name,
Package: p.PackageName,
Path: p.ImportPath(),
}
}
for _, p := range n.packages {
if _, ok := p.FilterTypes[name]; ok {
return types.Name{
Name: name.Name,
Package: p.PackageName,
Path: p.ImportPath(),
}
}
}
return types.Name{Name: name.Name}
}
func protoSafePackage(name string) string {
pkg := strings.Replace(name, "/", ".", -1)
return strings.Replace(pkg, "-", "_", -1)
}
type typeNameSet map[types.Name]*protobufPackage
// assignGoTypeToProtoPackage looks for Go and Protobuf types that are referenced by a type in
// a package. It will not recurse into protobuf types.
func assignGoTypeToProtoPackage(p *protobufPackage, t *types.Type, local, global typeNameSet, optional map[types.Name]struct{}) {
newT, isProto := isFundamentalProtoType(t)
if isProto {
t = newT
}
if otherP, ok := global[t.Name]; ok {
if _, ok := local[t.Name]; !ok {
p.Imports.AddType(&types.Type{
Kind: types.Protobuf,
Name: otherP.ProtoTypeName(),
})
}
return
}
global[t.Name] = p
if _, ok := local[t.Name]; ok {
return
}
// don't recurse into existing proto types
if isProto {
p.Imports.AddType(t)
return
}
local[t.Name] = p
for _, m := range t.Members {
if namer.IsPrivateGoName(m.Name) {
continue
}
field := &protoField{}
tag := reflect.StructTag(m.Tags).Get("protobuf")
if tag == "-" {
continue
}
if err := protobufTagToField(tag, field, m, t, p.ProtoTypeName()); err == nil && field.Type != nil {
assignGoTypeToProtoPackage(p, field.Type, local, global, optional)
continue
}
assignGoTypeToProtoPackage(p, m.Type, local, global, optional)
}
// TODO: should methods be walked?
if t.Elem != nil {
assignGoTypeToProtoPackage(p, t.Elem, local, global, optional)
}
if t.Key != nil {
assignGoTypeToProtoPackage(p, t.Key, local, global, optional)
}
if t.Underlying != nil {
if t.Kind == types.Alias && isOptionalAlias(t) {
optional[t.Name] = struct{}{}
}
assignGoTypeToProtoPackage(p, t.Underlying, local, global, optional)
}
}
func (n *protobufNamer) AssignTypesToPackages(c *generator.Context) error {
global := make(typeNameSet)
for _, p := range n.packages {
local := make(typeNameSet)
optional := make(map[types.Name]struct{})
p.Imports = NewImportTracker(p.ProtoTypeName())
for _, t := range c.Order {
if t.Name.Package != p.PackagePath {
continue
}
assignGoTypeToProtoPackage(p, t, local, global, optional)
}
p.FilterTypes = make(map[types.Name]struct{})
p.LocalNames = make(map[string]struct{})
p.OptionalTypeNames = make(map[string]struct{})
for k, v := range local {
if v == p {
p.FilterTypes[k] = struct{}{}
p.LocalNames[k.Name] = struct{}{}
if _, ok := optional[k]; ok {
p.OptionalTypeNames[k.Name] = struct{}{}
}
}
}
}
return nil
}
|
