/
flags.go
63 lines (53 loc) · 1.66 KB
/
flags.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
// Copyright 2018 Authors of Cilium
//
// 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 format
import (
"strconv"
"strings"
"github.com/spf13/pflag"
)
// Uint16Flags is a slice of unsigned 16-bit ints with some convenience methods.
type Uint16Flags []uint16
var _ pflag.Value = &Uint16Flags{}
// String provides a human-readable string format of the received variable.
func (i *Uint16Flags) String() string {
pieces := make([]string, 0, len(*i))
for _, v := range *i {
pieces = append(pieces, strconv.Itoa(int(v)))
}
return strings.Join(pieces, ", ")
}
// Set converts the specified value into an integer and appends it to the flags.
// Returns an error if the value cannot be converted to a 16-bit unsigned value.
func (i *Uint16Flags) Set(value string) error {
v, err := strconv.Atoi(value)
if err != nil {
return err
}
*i = append(*i, uint16(v))
return nil
}
// Type returns a human-readable string representing the type of the receiver.
func (i *Uint16Flags) Type() string {
return "[]uint16"
}
// Has returns true of value exist
func (i *Uint16Flags) Has(value uint16) bool {
for _, v := range *i {
if v == value {
return true
}
}
return false
}