mirror of
https://github.com/golang/go
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319b75ed33
Fixes #58141 Co-authored-by: Richard Musiol <neelance@gmail.com> Co-authored-by: Achille Roussel <achille.roussel@gmail.com> Co-authored-by: Julien Fabre <ju.pryz@gmail.com> Co-authored-by: Evan Phoenix <evan@phx.io> Change-Id: I49b66946acc90fdf09ed9223096bfec9a1e5b923 Reviewed-on: https://go-review.googlesource.com/c/go/+/479627 Run-TryBot: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com> Reviewed-by: Cherry Mui <cherryyz@google.com> Auto-Submit: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com> Auto-Submit: Ian Lance Taylor <iant@golang.org> Reviewed-by: Ian Lance Taylor <iant@google.com> TryBot-Bypass: Ian Lance Taylor <iant@golang.org>
71 lines
1.3 KiB
Go
71 lines
1.3 KiB
Go
// +build !nacl,!js,!wasip1,!android,!gccgo
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// run
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// Copyright 2016 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import (
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"bytes"
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"fmt"
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"html/template"
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"io/ioutil"
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"log"
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"os"
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"os/exec"
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"path/filepath"
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)
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var tmpl = template.Must(template.New("main").Parse(`
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package main
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type T struct {
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{{range .Names}}
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{{.Name}} *string
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{{end}}
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}
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{{range .Names}}
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func (t *T) Get{{.Name}}() string {
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if t.{{.Name}} == nil {
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return ""
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}
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return *t.{{.Name}}
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}
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{{end}}
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func main() {}
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`))
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func main() {
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const n = 5000
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type Name struct{ Name string }
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var t struct{ Names []Name }
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for i := 0; i < n; i++ {
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t.Names = append(t.Names, Name{Name: fmt.Sprintf("H%06X", i)})
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}
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buf := new(bytes.Buffer)
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if err := tmpl.Execute(buf, t); err != nil {
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log.Fatal(err)
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}
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dir, err := ioutil.TempDir("", "issue16037-")
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if err != nil {
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log.Fatal(err)
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}
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defer os.RemoveAll(dir)
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path := filepath.Join(dir, "ridiculous_number_of_fields.go")
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if err := ioutil.WriteFile(path, buf.Bytes(), 0664); err != nil {
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log.Fatal(err)
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}
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out, err := exec.Command("go", "build", "-o="+filepath.Join(dir, "out"), path).CombinedOutput()
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if err != nil {
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log.Fatalf("build failed: %v\n%s", err, out)
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}
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}
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