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go/test/fixedbugs/issue16037_run.go
Dmitri Shuralyov b2fd76ab8d test: migrate remaining files to go:build syntax
Most of the test cases in the test directory use the new go:build syntax
already. Convert the rest. In general, try to place the build constraint
line below the test directive comment in more places.

For #41184.
For #60268.

Change-Id: I11c41a0642a8a26dc2eda1406da908645bbc005b
Cq-Include-Trybots: luci.golang.try:gotip-linux-386-longtest,gotip-linux-amd64-longtest,gotip-windows-amd64-longtest
Reviewed-on: https://go-review.googlesource.com/c/go/+/536236
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2023-10-19 23:33:25 +00:00

72 lines
1.3 KiB
Go

// run
//go:build !nacl && !js && !wasip1 && !android && !gccgo
// Copyright 2016 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 main
import (
"bytes"
"fmt"
"html/template"
"io/ioutil"
"log"
"os"
"os/exec"
"path/filepath"
)
var tmpl = template.Must(template.New("main").Parse(`
package main
type T struct {
{{range .Names}}
{{.Name}} *string
{{end}}
}
{{range .Names}}
func (t *T) Get{{.Name}}() string {
if t.{{.Name}} == nil {
return ""
}
return *t.{{.Name}}
}
{{end}}
func main() {}
`))
func main() {
const n = 5000
type Name struct{ Name string }
var t struct{ Names []Name }
for i := 0; i < n; i++ {
t.Names = append(t.Names, Name{Name: fmt.Sprintf("H%06X", i)})
}
buf := new(bytes.Buffer)
if err := tmpl.Execute(buf, t); err != nil {
log.Fatal(err)
}
dir, err := ioutil.TempDir("", "issue16037-")
if err != nil {
log.Fatal(err)
}
defer os.RemoveAll(dir)
path := filepath.Join(dir, "ridiculous_number_of_fields.go")
if err := ioutil.WriteFile(path, buf.Bytes(), 0664); err != nil {
log.Fatal(err)
}
out, err := exec.Command("go", "build", "-o="+filepath.Join(dir, "out"), path).CombinedOutput()
if err != nil {
log.Fatalf("build failed: %v\n%s", err, out)
}
}