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// Copyright 2022 The etcd Authors
//
// 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 flags
import (
"flag"
"strconv"
)
type uint32Value uint32
// NewUint32Value creates an uint32 instance with the provided value.
func NewUint32Value(v uint32) *uint32Value {
val := new(uint32Value)
*val = uint32Value(v)
return val
}
// Set parses a command line uint32 value.
// Implements "flag.Value" interface.
func (i *uint32Value) Set(s string) error {
v, err := strconv.ParseUint(s, 0, 32)
*i = uint32Value(v)
return err
}
func (i *uint32Value) String() string { return strconv.FormatUint(uint64(*i), 10) }
// Uint32FromFlag return the uint32 value of a flag with the given name
func Uint32FromFlag(fs *flag.FlagSet, name string) uint32 {
val := *fs.Lookup(name).Value.(*uint32Value)
return uint32(val)
}
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