Source File
	flag.go

Belonging Package
	go.uber.org/zap

// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

package zap

import (
	"flag"

	"go.uber.org/zap/zapcore"
)

// LevelFlag uses the standard library's flag.Var to declare a global flag
// with the specified name, default, and usage guidance. The returned value is
// a pointer to the value of the flag.
//
// If you don't want to use the flag package's global state, you can use any
// non-nil *Level as a flag.Value with your own *flag.FlagSet.
func LevelFlag(name string, defaultLevel zapcore.Level, usage string) *zapcore.Level {
	lvl := defaultLevel
	flag.Var(&lvl, name, usage)
	return &lvl
}

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