| // Copyright 2020 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 log provides helper methods for exporting log events to the |
| // internal/event package. |
| package log |
| |
| import ( |
| "context" |
| "fmt" |
| |
| "golang.org/x/tools/internal/event" |
| "golang.org/x/tools/internal/event/label" |
| "golang.org/x/tools/internal/event/tag" |
| ) |
| |
| // Level parameterizes log severity. |
| type Level int |
| |
| const ( |
| _ Level = iota |
| Error |
| Warning |
| Info |
| Debug |
| Trace |
| ) |
| |
| // Log exports a log event labeled with level l. |
| func (l Level) Log(ctx context.Context, msg string) { |
| event.Log(ctx, msg, tag.Level.Of(int(l))) |
| } |
| |
| // Logf formats and exports a log event labeled with level l. |
| func (l Level) Logf(ctx context.Context, format string, args ...interface{}) { |
| l.Log(ctx, fmt.Sprintf(format, args...)) |
| } |
| |
| // LabeledLevel extracts the labeled log l |
| func LabeledLevel(lm label.Map) Level { |
| return Level(tag.Level.Get(lm)) |
| } |