go self_test 源码
golang self_test 代码
文件路径：/src/cmd/compile/internal/types2/self_test.go
// Copyright 2013 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 types2_test
import (
"cmd/compile/internal/syntax"
"path"
"path/filepath"
"runtime"
"testing"
"time"
. "cmd/compile/internal/types2"
)
func TestSelf(t *testing.T) {
files, err := pkgFiles(".")
if err != nil {
t.Fatal(err)
}
conf := Config{Importer: defaultImporter()}
_, err = conf.Check("cmd/compile/internal/types2", files, nil)
if err != nil {
t.Fatal(err)
}
}
func BenchmarkCheck(b *testing.B) {
for _, p := range []string{
filepath.Join("src", "net", "http"),
filepath.Join("src", "go", "parser"),
filepath.Join("src", "go", "constant"),
filepath.Join("src", "runtime"),
filepath.Join("src", "go", "internal", "gcimporter"),
} {
b.Run(path.Base(p), func(b *testing.B) {
path := filepath.Join(runtime.GOROOT(), p)
for _, ignoreFuncBodies := range []bool{false, true} {
name := "funcbodies"
if ignoreFuncBodies {
name = "nofuncbodies"
}
b.Run(name, func(b *testing.B) {
b.Run("info", func(b *testing.B) {
runbench(b, path, ignoreFuncBodies, true)
})
b.Run("noinfo", func(b *testing.B) {
runbench(b, path, ignoreFuncBodies, false)
})
})
}
})
}
}
func runbench(b *testing.B, path string, ignoreFuncBodies, writeInfo bool) {
files, err := pkgFiles(path)
if err != nil {
b.Fatal(err)
}
// determine line count
var lines uint
for _, f := range files {
lines += f.EOF.Line()
}
b.ResetTimer()
start := time.Now()
for i := 0; i < b.N; i++ {
conf := Config{
IgnoreFuncBodies: ignoreFuncBodies,
Importer: defaultImporter(),
}
var info *Info
if writeInfo {
info = &Info{
Types: make(map[syntax.Expr]TypeAndValue),
Defs: make(map[*syntax.Name]Object),
Uses: make(map[*syntax.Name]Object),
Implicits: make(map[syntax.Node]Object),
Selections: make(map[*syntax.SelectorExpr]*Selection),
Scopes: make(map[syntax.Node]*Scope),
}
}
if _, err := conf.Check(path, files, info); err != nil {
b.Fatal(err)
}
}
b.StopTimer()
b.ReportMetric(float64(lines)*float64(b.N)/time.Since(start).Seconds(), "lines/s")
}
func pkgFiles(path string) ([]*syntax.File, error) {
filenames, err := pkgFilenames(path) // from stdlib_test.go
if err != nil {
return nil, err
}
var files []*syntax.File
for _, filename := range filenames {
file, err := syntax.ParseFile(filename, nil, nil, 0)
if err != nil {
return nil, err
}
files = append(files, file)
}
return files, nil
}
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