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opt / golang / 1.22.0 / src / log / slog /

📁 ..
📄 attr.go(2.49 KB)
📄 attr_test.go(891 B)
📄 doc.go(12.13 KB)
📄 example_custom_levels_test.go(2.99 KB)
📄 example_level_handler_test.go(2.18 KB)
📄 example_log_level_test.go(1.85 KB)
📄 example_logvaluer_group_test.go(825 B)
📄 example_logvaluer_secret_test.go(906 B)
📄 example_test.go(857 B)
📄 example_wrap_test.go(1.34 KB)
📄 handler.go(17.48 KB)
📄 handler_test.go(19.61 KB)
📁 internal
📄 json_handler.go(8.05 KB)
📄 json_handler_test.go(6.48 KB)
📄 level.go(5.64 KB)
📄 level_test.go(3.75 KB)
📄 logger.go(10.22 KB)
📄 logger_test.go(19.48 KB)
📄 record.go(5.98 KB)
📄 record_test.go(4 KB)
📄 slogtest_test.go(2.61 KB)
📄 text_handler.go(4.71 KB)
📄 text_handler_test.go(3.81 KB)
📄 value.go(12.8 KB)
📄 value_access_benchmark_test.go(4.29 KB)
📄 value_test.go(6.08 KB)

Editing: example_log_level_test.go

// Copyright 2023 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package slog_test

import (
	"log"
	"log/slog"
	"log/slog/internal/slogtest"
	"os"
)

// This example shows how to use slog.SetLogLoggerLevel to change the minimal level
// of the internal default handler for slog package before calling slog.SetDefault.
func ExampleSetLogLoggerLevel_log() {
	defer log.SetFlags(log.Flags()) // revert changes after the example
	log.SetFlags(0)
	defer log.SetOutput(log.Writer()) // revert changes after the example
	log.SetOutput(os.Stdout)

// Default logging level is slog.LevelInfo.
	log.Print("log debug") // log debug
	slog.Debug("debug")    // no output
	slog.Info("info")      // INFO info

// Set the default logging level to slog.LevelDebug.
	currentLogLevel := slog.SetLogLoggerLevel(slog.LevelDebug)
	defer slog.SetLogLoggerLevel(currentLogLevel) // revert changes after the example

log.Print("log debug") // log debug
	slog.Debug("debug")    // DEBUG debug
	slog.Info("info")      // INFO info

// Output:
	// log debug
	// INFO info
	// log debug
	// DEBUG debug
	// INFO info
}

// This example shows how to use slog.SetLogLoggerLevel to change the minimal level
// of the internal writer that uses the custom handler for log package after
// calling slog.SetDefault.
func ExampleSetLogLoggerLevel_slog() {
	// Set the default logging level to slog.LevelError.
	currentLogLevel := slog.SetLogLoggerLevel(slog.LevelError)
	defer slog.SetLogLoggerLevel(currentLogLevel) // revert changes after the example

defer slog.SetDefault(slog.Default()) // revert changes after the example
	slog.SetDefault(slog.New(slog.NewTextHandler(os.Stdout, &slog.HandlerOptions{ReplaceAttr: slogtest.RemoveTime})))

log.Print("error") // level=ERROR msg=error

// Output:
	// level=ERROR msg=error
}

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Editing: example_log_level_test.go

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