uint8.go raw

   1  package pflag
   2  
   3  import "strconv"
   4  
   5  // -- uint8 Value
   6  type uint8Value uint8
   7  
   8  func newUint8Value(val uint8, p *uint8) *uint8Value {
   9  	*p = val
  10  	return (*uint8Value)(p)
  11  }
  12  
  13  func (i *uint8Value) Set(s string) error {
  14  	v, err := strconv.ParseUint(s, 0, 8)
  15  	*i = uint8Value(v)
  16  	return err
  17  }
  18  
  19  func (i *uint8Value) Type() string {
  20  	return "uint8"
  21  }
  22  
  23  func (i *uint8Value) String() string { return strconv.FormatUint(uint64(*i), 10) }
  24  
  25  func uint8Conv(sval string) (interface{}, error) {
  26  	v, err := strconv.ParseUint(sval, 0, 8)
  27  	if err != nil {
  28  		return 0, err
  29  	}
  30  	return uint8(v), nil
  31  }
  32  
  33  // GetUint8 return the uint8 value of a flag with the given name
  34  func (f *FlagSet) GetUint8(name string) (uint8, error) {
  35  	val, err := f.getFlagType(name, "uint8", uint8Conv)
  36  	if err != nil {
  37  		return 0, err
  38  	}
  39  	return val.(uint8), nil
  40  }
  41  
  42  // Uint8Var defines a uint8 flag with specified name, default value, and usage string.
  43  // The argument p points to a uint8 variable in which to store the value of the flag.
  44  func (f *FlagSet) Uint8Var(p *uint8, name string, value uint8, usage string) {
  45  	f.VarP(newUint8Value(value, p), name, "", usage)
  46  }
  47  
  48  // Uint8VarP is like Uint8Var, but accepts a shorthand letter that can be used after a single dash.
  49  func (f *FlagSet) Uint8VarP(p *uint8, name, shorthand string, value uint8, usage string) {
  50  	f.VarP(newUint8Value(value, p), name, shorthand, usage)
  51  }
  52  
  53  // Uint8Var defines a uint8 flag with specified name, default value, and usage string.
  54  // The argument p points to a uint8 variable in which to store the value of the flag.
  55  func Uint8Var(p *uint8, name string, value uint8, usage string) {
  56  	CommandLine.VarP(newUint8Value(value, p), name, "", usage)
  57  }
  58  
  59  // Uint8VarP is like Uint8Var, but accepts a shorthand letter that can be used after a single dash.
  60  func Uint8VarP(p *uint8, name, shorthand string, value uint8, usage string) {
  61  	CommandLine.VarP(newUint8Value(value, p), name, shorthand, usage)
  62  }
  63  
  64  // Uint8 defines a uint8 flag with specified name, default value, and usage string.
  65  // The return value is the address of a uint8 variable that stores the value of the flag.
  66  func (f *FlagSet) Uint8(name string, value uint8, usage string) *uint8 {
  67  	p := new(uint8)
  68  	f.Uint8VarP(p, name, "", value, usage)
  69  	return p
  70  }
  71  
  72  // Uint8P is like Uint8, but accepts a shorthand letter that can be used after a single dash.
  73  func (f *FlagSet) Uint8P(name, shorthand string, value uint8, usage string) *uint8 {
  74  	p := new(uint8)
  75  	f.Uint8VarP(p, name, shorthand, value, usage)
  76  	return p
  77  }
  78  
  79  // Uint8 defines a uint8 flag with specified name, default value, and usage string.
  80  // The return value is the address of a uint8 variable that stores the value of the flag.
  81  func Uint8(name string, value uint8, usage string) *uint8 {
  82  	return CommandLine.Uint8P(name, "", value, usage)
  83  }
  84  
  85  // Uint8P is like Uint8, but accepts a shorthand letter that can be used after a single dash.
  86  func Uint8P(name, shorthand string, value uint8, usage string) *uint8 {
  87  	return CommandLine.Uint8P(name, shorthand, value, usage)
  88  }
  89