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go.talks/cmd/cover: show simpler legend for "set" mode

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R=golang-dev, r
CC=golang-dev
https://golang.org/cl/10738044
This commit is contained in:
Andrew Gerrand 2013-07-10 14:03:35 +10:00
parent c659fcb7c8
commit 5b27bc1db9
1 changed files with 26 additions and 13 deletions
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39
cmd/cover/html.go
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@ -2,8 +2,6 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// TODO(adg): set-specific legend
package main
import (
@ -22,6 +20,7 @@ import (
"runtime"
"sort"
"strconv"
"strings"
)
// htmlOutput reads the profile data from profile and generates an HTML
@ -39,9 +38,12 @@ func htmlOutput(profile, outfile string) error {
return err
}
var files []*templateFile
var d templateData
for fn, profile := range profiles {
if profile.Mode == "set" {
d.Set = true
}
dir, file := filepath.Split(fn)
pkg, err := build.Import(dir, ".", build.FindOnly)
if err != nil {
@ -56,7 +58,7 @@ func htmlOutput(profile, outfile string) error {
if err != nil {
return err
}
files = append(files, &templateFile{
d.Files = append(d.Files, &templateFile{
Name: fn,
Body: template.HTML(buf.String()),
})
@ -73,7 +75,7 @@ func htmlOutput(profile, outfile string) error {
} else {
out, err = os.Create(outfile)
}
err = htmlTemplate.Execute(out, templateData{Files: files})
err = htmlTemplate.Execute(out, d)
if err == nil {
err = out.Close()
}
@ -92,6 +94,7 @@ func htmlOutput(profile, outfile string) error {
// Profile represents the profiling data for a specific file.
type Profile struct {
Mode string
Blocks []ProfileBlock
}
@ -107,18 +110,22 @@ type ProfileBlock struct {
func ParseProfiles(r io.Reader) (map[string]*Profile, error) {
files := make(map[string]*Profile)
buf := bufio.NewReader(r)
// First line is mode.
mode, err := buf.ReadString('\n')
if err != nil {
return nil, err
}
_ = mode // TODO: Use the mode to affect the display.
// First line is "mode: foo", where foo is "set", "count", or "atomic".
// Rest of file is in the format
// encoding/base64/base64.go:34.44,37.40 3 1
// where the fields are: name.go:line.column,line.column numberOfStatements count
s := bufio.NewScanner(buf)
mode := ""
for s.Scan() {
line := s.Text()
if mode == "" {
const p = "mode: "
if !strings.HasPrefix(line, p) || line == p {
return nil, fmt.Errorf("bad mode line: %v", line)
}
mode = line[len(p):]
continue
}
m := lineRe.FindStringSubmatch(line)
if m == nil {
return nil, fmt.Errorf("line %q doesn't match expected format: %v", m, lineRe)
@ -126,7 +133,7 @@ func ParseProfiles(r io.Reader) (map[string]*Profile, error) {
fn := m[1]
p := files[fn]
if p == nil {
p = new(Profile)
p = &Profile{Mode: mode}
files[fn] = p
}
p.Blocks = append(p.Blocks, ProfileBlock{
@ -193,7 +200,7 @@ func (p *Profile) Tokens(src []byte) (tokens []Token) {
return t
}
if max <= 1 {
t.Norm = 0.4 // "set" mode; use pale color
t.Norm = 0.8 // "set" mode; use cov8
} else if count > 0 {
t.Norm = math.Log(float64(count)) / divisor
}
@ -312,6 +319,7 @@ var htmlTemplate = template.Must(template.New("html").Funcs(template.FuncMap{
type templateData struct {
Files []*templateFile
Set bool
}
type templateFile struct {
@ -369,6 +377,10 @@ const tmplHTML = `
</div>
<div id="legend">
<span>not tracked</span>
{{if .Set}}
<span class="cov0">not covered</span>
<span class="cov8">covered</span>
{{else}}
<span class="cov0">no coverage</span>
<span class="cov1">low coverage</span>
<span class="cov2">*</span>
@ -380,6 +392,7 @@ const tmplHTML = `
<span class="cov8">*</span>
<span class="cov9">*</span>
<span class="cov10">high coverage</span>
{{end}}
</div>
</div>
<div id="content">