1package pflag
2
3import (
4	"fmt"
5	"strconv"
6)
7
8// -- int32 Value
9type int32Value int32
10
11func newInt32Value(val int32, p *int32) *int32Value {
12	*p = val
13	return (*int32Value)(p)
14}
15
16func (i *int32Value) Set(s string) error {
17	v, err := strconv.ParseInt(s, 0, 32)
18	*i = int32Value(v)
19	return err
20}
21
22func (i *int32Value) Type() string {
23	return "int32"
24}
25
26func (i *int32Value) String() string { return fmt.Sprintf("%v", *i) }
27
28func int32Conv(sval string) (interface{}, error) {
29	v, err := strconv.ParseInt(sval, 0, 32)
30	if err != nil {
31		return 0, err
32	}
33	return int32(v), nil
34}
35
36// GetInt32 return the int32 value of a flag with the given name
37func (f *FlagSet) GetInt32(name string) (int32, error) {
38	val, err := f.getFlagType(name, "int32", int32Conv)
39	if err != nil {
40		return 0, err
41	}
42	return val.(int32), nil
43}
44
45// Int32Var defines an int32 flag with specified name, default value, and usage string.
46// The argument p points to an int32 variable in which to store the value of the flag.
47func (f *FlagSet) Int32Var(p *int32, name string, value int32, usage string) {
48	f.VarP(newInt32Value(value, p), name, "", usage)
49}
50
51// Int32VarP is like Int32Var, but accepts a shorthand letter that can be used after a single dash.
52func (f *FlagSet) Int32VarP(p *int32, name, shorthand string, value int32, usage string) {
53	f.VarP(newInt32Value(value, p), name, shorthand, usage)
54}
55
56// Int32Var defines an int32 flag with specified name, default value, and usage string.
57// The argument p points to an int32 variable in which to store the value of the flag.
58func Int32Var(p *int32, name string, value int32, usage string) {
59	CommandLine.VarP(newInt32Value(value, p), name, "", usage)
60}
61
62// Int32VarP is like Int32Var, but accepts a shorthand letter that can be used after a single dash.
63func Int32VarP(p *int32, name, shorthand string, value int32, usage string) {
64	CommandLine.VarP(newInt32Value(value, p), name, shorthand, usage)
65}
66
67// Int32 defines an int32 flag with specified name, default value, and usage string.
68// The return value is the address of an int32 variable that stores the value of the flag.
69func (f *FlagSet) Int32(name string, value int32, usage string) *int32 {
70	p := new(int32)
71	f.Int32VarP(p, name, "", value, usage)
72	return p
73}
74
75// Int32P is like Int32, but accepts a shorthand letter that can be used after a single dash.
76func (f *FlagSet) Int32P(name, shorthand string, value int32, usage string) *int32 {
77	p := new(int32)
78	f.Int32VarP(p, name, shorthand, value, usage)
79	return p
80}
81
82// Int32 defines an int32 flag with specified name, default value, and usage string.
83// The return value is the address of an int32 variable that stores the value of the flag.
84func Int32(name string, value int32, usage string) *int32 {
85	return CommandLine.Int32P(name, "", value, usage)
86}
87
88// Int32P is like Int32, but accepts a shorthand letter that can be used after a single dash.
89func Int32P(name, shorthand string, value int32, usage string) *int32 {
90	return CommandLine.Int32P(name, shorthand, value, usage)
91}
92