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
|
/*
* Copyright (c) 2018 Google, Inc.
*
* 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 com.google.common.truth.extensions.proto;
import static com.google.common.base.Preconditions.checkArgument;
import com.google.protobuf.Descriptors.FieldDescriptor;
import com.google.protobuf.Descriptors.FieldDescriptor.JavaType;
/** Various validators, to ensure that explicit comparison settings made by the user make sense. */
enum FieldDescriptorValidator {
ALLOW_ALL() {
@Override
void validate(FieldDescriptor fieldDescriptor) {}
},
IS_FIELD_WITH_ABSENCE() {
@Override
void validate(FieldDescriptor fieldDescriptor) {
checkArgument(
!fieldDescriptor.isRepeated(),
"%s is a repeated field; repeated fields cannot be absent, only empty",
fieldDescriptor);
checkArgument(
fieldDescriptor.hasPresence(),
"%s is a field without presence; it cannot be absent",
fieldDescriptor);
}
},
IS_FIELD_WITH_ORDER() {
@Override
void validate(FieldDescriptor fieldDescriptor) {
checkArgument(
!fieldDescriptor.isMapField(), "%s is a map field; it has no order", fieldDescriptor);
checkArgument(
fieldDescriptor.isRepeated(),
"%s is not a repeated field; it has no order",
fieldDescriptor);
}
},
IS_FIELD_WITH_EXTRA_ELEMENTS() {
@Override
void validate(FieldDescriptor fieldDescriptor) {
checkArgument(
fieldDescriptor.isRepeated(),
"%s is not a repeated field or a map field; it cannot contain extra elements",
fieldDescriptor);
}
},
IS_DOUBLE_FIELD() {
@Override
void validate(FieldDescriptor fieldDescriptor) {
checkArgument(
fieldDescriptor.getJavaType() == JavaType.DOUBLE,
"%s is not a double field",
fieldDescriptor);
}
},
IS_FLOAT_FIELD() {
@Override
void validate(FieldDescriptor fieldDescriptor) {
checkArgument(
fieldDescriptor.getJavaType() == JavaType.FLOAT,
"%s is not a float field",
fieldDescriptor);
}
};
/** Validates the given {@link FieldDescriptor} according to this instance's rules. */
abstract void validate(FieldDescriptor fieldDescriptor);
}
|
