defaults_log.go

// Copyright 2024 xgfone
//
// 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 defaults

import (
	"context"
	"log/slog"
)

var (
	// FatalFunc is used to log the message with the FATAL level,
	// then the program exits.
	//
	// Default: use slog.LevelError+4 as the FATAL level, then exit by Exit(1).
	FatalFunc = NewValueWithValidation(fatal, fA2Validation[string, []any]("Fatal"))
)

// Fatal is the proxy of FatalFunc to log the message with the FATAL level,
// then the program exits.
func Fatal(msg string, args ...any) { FatalFunc.Get()(msg, args) }

func fatal(msg string, args []any) {
	slog.Log(context.Background(), slog.LevelError+4, msg, args...)
	Exit(1)
}