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uint64.go
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73 lines (60 loc) · 1.36 KB
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package rig
import (
"flag"
"strconv"
"github.com/Pimmr/rig/validators"
)
type uint64Validators struct {
*uint64Value
validators []validators.Uint64
}
func (v uint64Validators) Set(s string) error {
err := v.uint64Value.Set(s)
if err != nil {
return err
}
for _, validator := range v.validators {
err = validator(uint64(*v.uint64Value))
if err != nil {
return err
}
}
return nil
}
func (v uint64Validators) New(i interface{}) flag.Value {
return uint64Validators{
uint64Value: (*uint64Value)(i.(*uint64)),
validators: v.validators,
}
}
func (v uint64Validators) IsNil() bool {
return v.uint64Value == nil
}
type uint64Value uint64
func (i uint64Value) String() string {
return strconv.FormatUint(uint64(i), 10)
}
func (i *uint64Value) Set(s string) error {
v, err := strconv.ParseUint(s, 0, 64)
*i = uint64Value(v)
return err
}
// Uint64 creates a flag for a uint64 variable.
func Uint64(v *uint64, flag, env, usage string, validators ...validators.Uint64) *Flag {
return &Flag{
Value: uint64Validators{
uint64Value: (*uint64Value)(v),
validators: validators,
},
Name: flag,
Env: env,
Usage: usage,
TypeHint: "uint64",
}
}
// Uint64Generator is the default uint64 generator, to be used with Repeatable for uint64 slices.
func Uint64Generator() Generator {
return func() flag.Value {
return new(uint64Value)
}
}