1// Copyright 2020 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5package export
6
7import (
8	"io"
9
10	"golang.org/x/tools/internal/event/core"
11	"golang.org/x/tools/internal/event/keys"
12	"golang.org/x/tools/internal/event/label"
13)
14
15type Printer struct {
16	buffer [128]byte
17}
18
19func (p *Printer) WriteEvent(w io.Writer, ev core.Event, lm label.Map) {
20	buf := p.buffer[:0]
21	if !ev.At().IsZero() {
22		w.Write(ev.At().AppendFormat(buf, "2006/01/02 15:04:05 "))
23	}
24	msg := keys.Msg.Get(lm)
25	io.WriteString(w, msg)
26	if err := keys.Err.Get(lm); err != nil {
27		if msg != "" {
28			io.WriteString(w, ": ")
29		}
30		io.WriteString(w, err.Error())
31	}
32	for index := 0; ev.Valid(index); index++ {
33		l := ev.Label(index)
34		if !l.Valid() || l.Key() == keys.Msg || l.Key() == keys.Err {
35			continue
36		}
37		io.WriteString(w, "\n\t")
38		io.WriteString(w, l.Key().Name())
39		io.WriteString(w, "=")
40		l.Key().Format(w, buf, l)
41	}
42	io.WriteString(w, "\n")
43}
44