-
Notifications
You must be signed in to change notification settings - Fork 9
/
intent.go
211 lines (167 loc) · 5.83 KB
/
intent.go
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
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
// Copyright 2022 Namespace Labs Inc; All rights reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
package cuefrontend
import (
"io/fs"
"reflect"
"unicode/utf8"
"golang.org/x/exp/maps"
"google.golang.org/protobuf/reflect/protoreflect"
"google.golang.org/protobuf/types/dynamicpb"
"namespacelabs.dev/foundation/internal/fnerrors"
"namespacelabs.dev/foundation/schema"
)
func allocateValue(fsys fs.FS, parent *dynamicpb.Message, field protoreflect.FieldDescriptor, value any) (protoreflect.Value, error) {
if field.IsMap() {
return protoreflect.Value{}, fnerrors.New("maps not supported")
}
if field.IsList() {
list := parent.NewField(field).Interface().(protoreflect.List)
switch x := value.(type) {
case []any:
for k, v := range x {
allocated, err := allocateSingleValue(fsys, field, v)
if err != nil {
return protoreflect.Value{}, fnerrors.New("[%d]: %w", k, err)
}
list.Append(allocated)
}
return protoreflect.ValueOfList(list), nil
}
return protoreflect.Value{}, fnerrors.New("expected []any, got %s", reflect.TypeOf(value).String())
}
return allocateSingleValue(fsys, field, value)
}
func allocateSingleValue(fsys fs.FS, field protoreflect.FieldDescriptor, value any) (protoreflect.Value, error) {
switch field.Kind() {
case protoreflect.BoolKind:
switch x := value.(type) {
case bool:
return protoreflect.ValueOfBool(x), nil
}
return protoreflect.Value{}, fnerrors.New("expected bool, got %s", reflect.TypeOf(value).String())
case protoreflect.DoubleKind,
protoreflect.FloatKind:
switch x := value.(type) {
case float32, float64:
return protoreflect.ValueOf(x), nil
}
return protoreflect.Value{}, fnerrors.New("expected float, got %s", reflect.TypeOf(value).String())
case protoreflect.Int32Kind,
protoreflect.Fixed32Kind,
protoreflect.Uint32Kind,
protoreflect.Sfixed32Kind,
protoreflect.Sint32Kind,
protoreflect.Int64Kind,
protoreflect.Fixed64Kind,
protoreflect.Uint64Kind,
protoreflect.Sfixed64Kind,
protoreflect.Sint64Kind:
switch x := value.(type) {
case int32, int64, uint, uint32, uint64:
return protoreflect.ValueOf(x), nil
}
return protoreflect.Value{}, fnerrors.New("expected int{32,64} or uint{32,64}, got %s", reflect.TypeOf(value).String())
case protoreflect.StringKind:
switch x := value.(type) {
case string:
return protoreflect.ValueOf(x), nil
}
return protoreflect.Value{}, fnerrors.New("expected string, got %s", reflect.TypeOf(value).String())
case protoreflect.BytesKind:
switch x := value.(type) {
case []byte:
return protoreflect.ValueOf(x), nil
}
return protoreflect.Value{}, fnerrors.New("expected bytes, got %s", reflect.TypeOf(value).String())
case protoreflect.EnumKind:
switch x := value.(type) {
case string:
fieldValue := field.Enum().Values().ByName(protoreflect.Name(x))
if fieldValue == nil {
return protoreflect.Value{}, fnerrors.New("unknown enum value %s", x)
}
return protoreflect.ValueOfEnum(fieldValue.Number()), nil
case int32:
fieldValue := field.Enum().Values().ByNumber(protoreflect.EnumNumber(x))
if fieldValue == nil {
return protoreflect.Value{}, fnerrors.New("unknown enum value %v", x)
}
return protoreflect.ValueOfEnum(fieldValue.Number()), nil
}
return protoreflect.Value{}, fnerrors.New("expected string or int32, got %s", reflect.TypeOf(value).String())
case protoreflect.MessageKind:
msg, err := allocateMessage(fsys, field.Message(), value)
if err != nil {
return protoreflect.Value{}, err
}
return protoreflect.ValueOfMessage(msg.ProtoReflect()), nil
default:
return protoreflect.Value{}, fnerrors.New("kind not supported: %v", field.Kind())
}
}
func allocateMessage(fsys fs.FS, messageType protoreflect.MessageDescriptor, value any) (protoreflect.ProtoMessage, error) {
// Handle well-known types.
switch messageType.FullName() {
case "foundation.schema.FileContents":
return allocateFileContents(fsys, value)
}
switch x := value.(type) {
case map[string]interface{}:
msg := dynamicpb.NewMessage(messageType)
fields := msg.Descriptor().Fields()
for key, v := range x {
f := fields.ByJSONName(key)
if f == nil {
f = fields.ByName(protoreflect.Name(key))
}
if f == nil {
return nil, fnerrors.New("{%s}.%q: no such field", msg.Descriptor().FullName(), key)
}
newValue, err := allocateValue(fsys, msg, f, v)
if err != nil {
return nil, fnerrors.New("{%s}.%q: %w", msg.Descriptor().FullName(), key, err)
}
msg.Set(f, newValue)
}
return msg, nil
}
return nil, fnerrors.New("expected map, got %s", reflect.TypeOf(value).String())
}
func allocateFileContents(fsys fs.FS, value any) (protoreflect.ProtoMessage, error) {
if fsys == nil {
return nil, fnerrors.New("failed to handle resource, no workspace access available")
}
switch x := value.(type) {
case string:
contents, err := fs.ReadFile(fsys, x)
if err != nil {
return nil, fnerrors.New("failed to load %q: %w", x, err)
}
return &schema.FileContents{
Utf8: utf8.Valid(contents),
Contents: contents,
}, nil
case map[string]interface{}:
keys := maps.Keys(x)
if len(keys) != 1 {
return nil, fnerrors.New("failed to handle inline resource, expected single-key map")
}
switch keys[0] {
case "inline":
switch y := x[keys[0]].(type) {
case string:
return &schema.FileContents{
Utf8: true,
Contents: []byte(y),
}, nil
case []byte:
return &schema.FileContents{Contents: y}, nil
}
return nil, fnerrors.New("failed to handle inline resource, got %s", reflect.TypeOf(x[keys[0]]).String())
}
return nil, fnerrors.New("failed to handle inline resource, expected %q got %q", "inline", keys[0])
}
return nil, fnerrors.New("failed to handle resource type, got %s", reflect.TypeOf(value).String())
}