Matteo Scandolo | a428586 | 2020-12-01 18:10:10 -0800 | [diff] [blame^] | 1 | package pflag |
| 2 | |
| 3 | import ( |
| 4 | "fmt" |
| 5 | "strconv" |
| 6 | "strings" |
| 7 | ) |
| 8 | |
| 9 | // -- int32Slice Value |
| 10 | type int32SliceValue struct { |
| 11 | value *[]int32 |
| 12 | changed bool |
| 13 | } |
| 14 | |
| 15 | func newInt32SliceValue(val []int32, p *[]int32) *int32SliceValue { |
| 16 | isv := new(int32SliceValue) |
| 17 | isv.value = p |
| 18 | *isv.value = val |
| 19 | return isv |
| 20 | } |
| 21 | |
| 22 | func (s *int32SliceValue) Set(val string) error { |
| 23 | ss := strings.Split(val, ",") |
| 24 | out := make([]int32, len(ss)) |
| 25 | for i, d := range ss { |
| 26 | var err error |
| 27 | var temp64 int64 |
| 28 | temp64, err = strconv.ParseInt(d, 0, 32) |
| 29 | if err != nil { |
| 30 | return err |
| 31 | } |
| 32 | out[i] = int32(temp64) |
| 33 | |
| 34 | } |
| 35 | if !s.changed { |
| 36 | *s.value = out |
| 37 | } else { |
| 38 | *s.value = append(*s.value, out...) |
| 39 | } |
| 40 | s.changed = true |
| 41 | return nil |
| 42 | } |
| 43 | |
| 44 | func (s *int32SliceValue) Type() string { |
| 45 | return "int32Slice" |
| 46 | } |
| 47 | |
| 48 | func (s *int32SliceValue) String() string { |
| 49 | out := make([]string, len(*s.value)) |
| 50 | for i, d := range *s.value { |
| 51 | out[i] = fmt.Sprintf("%d", d) |
| 52 | } |
| 53 | return "[" + strings.Join(out, ",") + "]" |
| 54 | } |
| 55 | |
| 56 | func (s *int32SliceValue) fromString(val string) (int32, error) { |
| 57 | t64, err := strconv.ParseInt(val, 0, 32) |
| 58 | if err != nil { |
| 59 | return 0, err |
| 60 | } |
| 61 | return int32(t64), nil |
| 62 | } |
| 63 | |
| 64 | func (s *int32SliceValue) toString(val int32) string { |
| 65 | return fmt.Sprintf("%d", val) |
| 66 | } |
| 67 | |
| 68 | func (s *int32SliceValue) Append(val string) error { |
| 69 | i, err := s.fromString(val) |
| 70 | if err != nil { |
| 71 | return err |
| 72 | } |
| 73 | *s.value = append(*s.value, i) |
| 74 | return nil |
| 75 | } |
| 76 | |
| 77 | func (s *int32SliceValue) Replace(val []string) error { |
| 78 | out := make([]int32, len(val)) |
| 79 | for i, d := range val { |
| 80 | var err error |
| 81 | out[i], err = s.fromString(d) |
| 82 | if err != nil { |
| 83 | return err |
| 84 | } |
| 85 | } |
| 86 | *s.value = out |
| 87 | return nil |
| 88 | } |
| 89 | |
| 90 | func (s *int32SliceValue) GetSlice() []string { |
| 91 | out := make([]string, len(*s.value)) |
| 92 | for i, d := range *s.value { |
| 93 | out[i] = s.toString(d) |
| 94 | } |
| 95 | return out |
| 96 | } |
| 97 | |
| 98 | func int32SliceConv(val string) (interface{}, error) { |
| 99 | val = strings.Trim(val, "[]") |
| 100 | // Empty string would cause a slice with one (empty) entry |
| 101 | if len(val) == 0 { |
| 102 | return []int32{}, nil |
| 103 | } |
| 104 | ss := strings.Split(val, ",") |
| 105 | out := make([]int32, len(ss)) |
| 106 | for i, d := range ss { |
| 107 | var err error |
| 108 | var temp64 int64 |
| 109 | temp64, err = strconv.ParseInt(d, 0, 32) |
| 110 | if err != nil { |
| 111 | return nil, err |
| 112 | } |
| 113 | out[i] = int32(temp64) |
| 114 | |
| 115 | } |
| 116 | return out, nil |
| 117 | } |
| 118 | |
| 119 | // GetInt32Slice return the []int32 value of a flag with the given name |
| 120 | func (f *FlagSet) GetInt32Slice(name string) ([]int32, error) { |
| 121 | val, err := f.getFlagType(name, "int32Slice", int32SliceConv) |
| 122 | if err != nil { |
| 123 | return []int32{}, err |
| 124 | } |
| 125 | return val.([]int32), nil |
| 126 | } |
| 127 | |
| 128 | // Int32SliceVar defines a int32Slice flag with specified name, default value, and usage string. |
| 129 | // The argument p points to a []int32 variable in which to store the value of the flag. |
| 130 | func (f *FlagSet) Int32SliceVar(p *[]int32, name string, value []int32, usage string) { |
| 131 | f.VarP(newInt32SliceValue(value, p), name, "", usage) |
| 132 | } |
| 133 | |
| 134 | // Int32SliceVarP is like Int32SliceVar, but accepts a shorthand letter that can be used after a single dash. |
| 135 | func (f *FlagSet) Int32SliceVarP(p *[]int32, name, shorthand string, value []int32, usage string) { |
| 136 | f.VarP(newInt32SliceValue(value, p), name, shorthand, usage) |
| 137 | } |
| 138 | |
| 139 | // Int32SliceVar defines a int32[] flag with specified name, default value, and usage string. |
| 140 | // The argument p points to a int32[] variable in which to store the value of the flag. |
| 141 | func Int32SliceVar(p *[]int32, name string, value []int32, usage string) { |
| 142 | CommandLine.VarP(newInt32SliceValue(value, p), name, "", usage) |
| 143 | } |
| 144 | |
| 145 | // Int32SliceVarP is like Int32SliceVar, but accepts a shorthand letter that can be used after a single dash. |
| 146 | func Int32SliceVarP(p *[]int32, name, shorthand string, value []int32, usage string) { |
| 147 | CommandLine.VarP(newInt32SliceValue(value, p), name, shorthand, usage) |
| 148 | } |
| 149 | |
| 150 | // Int32Slice defines a []int32 flag with specified name, default value, and usage string. |
| 151 | // The return value is the address of a []int32 variable that stores the value of the flag. |
| 152 | func (f *FlagSet) Int32Slice(name string, value []int32, usage string) *[]int32 { |
| 153 | p := []int32{} |
| 154 | f.Int32SliceVarP(&p, name, "", value, usage) |
| 155 | return &p |
| 156 | } |
| 157 | |
| 158 | // Int32SliceP is like Int32Slice, but accepts a shorthand letter that can be used after a single dash. |
| 159 | func (f *FlagSet) Int32SliceP(name, shorthand string, value []int32, usage string) *[]int32 { |
| 160 | p := []int32{} |
| 161 | f.Int32SliceVarP(&p, name, shorthand, value, usage) |
| 162 | return &p |
| 163 | } |
| 164 | |
| 165 | // Int32Slice defines a []int32 flag with specified name, default value, and usage string. |
| 166 | // The return value is the address of a []int32 variable that stores the value of the flag. |
| 167 | func Int32Slice(name string, value []int32, usage string) *[]int32 { |
| 168 | return CommandLine.Int32SliceP(name, "", value, usage) |
| 169 | } |
| 170 | |
| 171 | // Int32SliceP is like Int32Slice, but accepts a shorthand letter that can be used after a single dash. |
| 172 | func Int32SliceP(name, shorthand string, value []int32, usage string) *[]int32 { |
| 173 | return CommandLine.Int32SliceP(name, shorthand, value, usage) |
| 174 | } |