+++ /dev/null
-// Copyright 2012 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 callback
-
-type GoCallback struct{}
-
-func (p *GoCallback) Run() string {
- return "GoCallback.Run"
-}
+++ /dev/null
-// Copyright 2012 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 callback
-
-import (
- "testing"
-)
-
-func TestCall(t *testing.T) {
- c := NewCaller()
- cb := NewCallback()
-
- c.SetCallback(cb)
- s := c.Call()
- if s != "Callback::run" {
- t.Errorf("unexpected string from Call: %q", s)
- }
- c.DelCallback()
-}
-
-func TestCallback(t *testing.T) {
- c := NewCaller()
- cb := NewDirectorCallback(&GoCallback{})
- c.SetCallback(cb)
- s := c.Call()
- if s != "GoCallback.Run" {
- t.Errorf("unexpected string from Call with callback: %q", s)
- }
- c.DelCallback()
- DeleteDirectorCallback(cb)
-}
--- /dev/null
+// Copyright 2023 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.
+
+// This file is just to avoid build errors if there's no cgo.
+
+package swig
+++ /dev/null
-// Copyright 2017 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.
-
-// This file is here just to cause problems.
-// file.swig turns into a file also named file.go.
-// Make sure cmd/go keeps them separate
-// when both are passed to cgo.
-
-package file
-
-//int F(void) { return 1; }
-import "C"
-
-func F() int { return int(C.F()) }
+++ /dev/null
-// Copyright 2012 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 file
-
-import "testing"
-
-// Open this file itself and verify that the first few characters are
-// as expected.
-func TestRead(t *testing.T) {
- f := Fopen("file_test.go", "r")
- if f.Swigcptr() == 0 {
- t.Fatal("fopen failed")
- }
- if Fgetc(f) != '/' || Fgetc(f) != '/' || Fgetc(f) != ' ' || Fgetc(f) != 'C' {
- t.Error("read unexpected characters")
- }
- if Fclose(f) != 0 {
- t.Error("fclose failed")
- }
-}
-
-func TestF(t *testing.T) {
- if x := F(); x != 1 {
- t.Fatalf("x = %d, want 1", x)
- }
-}
--- /dev/null
+// Copyright 2023 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.
+
+//go:build cgo
+
+package swig
+
+import (
+ "bytes"
+ "os"
+ "os/exec"
+ "path/filepath"
+ "regexp"
+ "strconv"
+ "strings"
+ "sync"
+ "testing"
+)
+
+func TestStdio(t *testing.T) {
+ mustHaveSwig(t)
+ run(t, "testdata/stdio", false)
+}
+
+func TestCall(t *testing.T) {
+ mustHaveSwig(t)
+ mustHaveCxx(t)
+ run(t, "testdata/callback", false, "Call")
+ t.Run("lto", func(t *testing.T) { run(t, "testdata/callback", true, "Call") })
+}
+
+func TestCallback(t *testing.T) {
+ mustHaveSwig(t)
+ mustHaveCxx(t)
+ run(t, "testdata/callback", false, "Callback")
+ t.Run("lto", func(t *testing.T) { run(t, "testdata/callback", true, "Callback") })
+}
+
+func run(t *testing.T, dir string, lto bool, args ...string) {
+ runArgs := append([]string{"run", "."}, args...)
+ cmd := exec.Command("go", runArgs...)
+ cmd.Dir = dir
+ if lto {
+ const cflags = "-flto -Wno-lto-type-mismatch -Wno-unknown-warning-option"
+ cmd.Env = append(cmd.Environ(),
+ "CGO_CFLAGS="+cflags,
+ "CGO_CXXFLAGS="+cflags,
+ "CGO_LDFLAGS="+cflags)
+ }
+ out, err := cmd.CombinedOutput()
+ if string(out) != "OK\n" {
+ t.Errorf("%s", string(out))
+ }
+ if err != nil {
+ t.Errorf("%s", err)
+ }
+}
+
+func mustHaveCxx(t *testing.T) {
+ // Ask the go tool for the CXX it's configured to use.
+ cxx, err := exec.Command("go", "env", "CXX").CombinedOutput()
+ if err != nil {
+ t.Fatalf("go env CXX failed: %s", err)
+ }
+ cxx = bytes.TrimSuffix(cxx, []byte("\n"))
+ // TODO(austin): "go env CXX" can return a quoted list. Use quoted.Split.
+ p, err := exec.LookPath(string(cxx))
+ if p == "" {
+ t.Skipf("test requires C++ compiler, but failed to find %s: %s", string(cxx), err)
+ }
+}
+
+var (
+ swigOnce sync.Once
+ haveSwig bool
+)
+
+func mustHaveSwig(t *testing.T) {
+ swigOnce.Do(func() {
+ mustHaveSwigOnce(t)
+ haveSwig = true
+ })
+ // The first call will skip t with a nice message. On later calls, we just skip.
+ if !haveSwig {
+ t.Skip("swig not found")
+ }
+}
+
+func mustHaveSwigOnce(t *testing.T) {
+ swig, err := exec.LookPath("swig")
+ if err != nil {
+ t.Skipf("swig not in PATH: %s", err)
+ }
+
+ // Check that swig was installed with Go support by checking
+ // that a go directory exists inside the swiglib directory.
+ // See https://golang.org/issue/23469.
+ output, err := exec.Command(swig, "-go", "-swiglib").Output()
+ if err != nil {
+ t.Skip("swig is missing Go support")
+ }
+ swigDir := strings.TrimSpace(string(output))
+
+ _, err = os.Stat(filepath.Join(swigDir, "go"))
+ if err != nil {
+ t.Skip("swig is missing Go support")
+ }
+
+ // Check that swig has a new enough version.
+ // See https://golang.org/issue/22858.
+ out, err := exec.Command(swig, "-version").CombinedOutput()
+ if err != nil {
+ t.Skipf("failed to get swig version:%s\n%s", err, string(out))
+ }
+
+ re := regexp.MustCompile(`[vV]ersion +(\d+)([.]\d+)?([.]\d+)?`)
+ matches := re.FindSubmatch(out)
+ if matches == nil {
+ // Can't find version number; hope for the best.
+ t.Logf("failed to find swig version, continuing")
+ return
+ }
+
+ var parseError error
+ atoi := func(s string) int {
+ x, err := strconv.Atoi(s)
+ if err != nil && parseError == nil {
+ parseError = err
+ }
+ return x
+ }
+ var major, minor, patch int
+ major = atoi(string(matches[1]))
+ if len(matches[2]) > 0 {
+ minor = atoi(string(matches[2][1:]))
+ }
+ if len(matches[3]) > 0 {
+ patch = atoi(string(matches[3][1:]))
+ }
+ if parseError != nil {
+ t.Logf("error parsing swig version %q, continuing anyway: %s", string(matches[0]), parseError)
+ return
+ }
+ t.Logf("found swig version %d.%d.%d", major, minor, patch)
+ if major < 3 || (major == 3 && minor == 0 && patch < 6) {
+ t.Skip("test requires swig 3.0.6 or later")
+ }
+}
// included in the package.
#include <string>
-#include "callback.h"
+#include "main.h"
std::string Caller::call() {
if (callback_ != 0)
--- /dev/null
+// Copyright 2012 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 (
+ "fmt"
+ "os"
+)
+
+func main() {
+ if len(os.Args) != 2 {
+ fatal("usage: callback testname")
+ }
+ switch os.Args[1] {
+ default:
+ fatal("unknown test %q", os.Args[1])
+ case "Call":
+ testCall()
+ case "Callback":
+ testCallback()
+ }
+ println("OK")
+}
+
+func fatal(f string, args ...any) {
+ fmt.Fprintln(os.Stderr, fmt.Sprintf(f, args...))
+ os.Exit(1)
+}
+
+type GoCallback struct{}
+
+func (p *GoCallback) Run() string {
+ return "GoCallback.Run"
+}
+
+func testCall() {
+ c := NewCaller()
+ cb := NewCallback()
+
+ c.SetCallback(cb)
+ s := c.Call()
+ if s != "Callback::run" {
+ fatal("unexpected string from Call: %q", s)
+ }
+ c.DelCallback()
+}
+
+func testCallback() {
+ c := NewCaller()
+ cb := NewDirectorCallback(&GoCallback{})
+ c.SetCallback(cb)
+ s := c.Call()
+ if s != "GoCallback.Run" {
+ fatal("unexpected string from Call with callback: %q", s)
+ }
+ c.DelCallback()
+ DeleteDirectorCallback(cb)
+}
%{
#include <string>
-#include "callback.h"
+#include "main.h"
%}
%include "std_string.i"
%feature("director");
-%include "callback.h"
+%include "main.h"
--- /dev/null
+// Copyright 2017 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.
+
+// This file is here just to cause problems.
+// main.swig turns into a file also named main.go.
+// Make sure cmd/go keeps them separate
+// when both are passed to cgo.
+
+package main
+
+//int F(void) { return 1; }
+import "C"
+import (
+ "fmt"
+ "os"
+)
+
+func F() int { return int(C.F()) }
+
+func main() {
+ if x := int(C.F()); x != 1 {
+ fatal("x = %d, want 1", x)
+ }
+
+ // Open this file itself and verify that the first few characters are
+ // as expected.
+ f := Fopen("main.go", "r")
+ if f.Swigcptr() == 0 {
+ fatal("fopen failed")
+ }
+ if Fgetc(f) != '/' || Fgetc(f) != '/' || Fgetc(f) != ' ' || Fgetc(f) != 'C' {
+ fatal("read unexpected characters")
+ }
+ if Fclose(f) != 0 {
+ fatal("fclose failed")
+ }
+
+ println("OK")
+}
+
+func fatal(f string, args ...any) {
+ fmt.Fprintln(os.Stderr, fmt.Sprintf(f, args...))
+ os.Exit(1)
+}
if goos != "android" {
t.registerTest("cgo_testfortran", "", &goTest{dir: "cmd/cgo/internal/testfortran", timeout: 5 * time.Minute}, rtHostTest{})
}
- if t.hasSwig() && goos != "android" {
- t.registerTest("swig_stdio", "", &goTest{dir: "../misc/swig/stdio"})
- if t.hasCxx() {
- t.registerTest("swig_callback", "", &goTest{dir: "../misc/swig/callback"})
- const cflags = "-flto -Wno-lto-type-mismatch -Wno-unknown-warning-option"
- t.registerTest("swig_callback_lto", "",
- &goTest{
- dir: "../misc/swig/callback",
- env: []string{
- "CGO_CFLAGS=" + cflags,
- "CGO_CXXFLAGS=" + cflags,
- "CGO_LDFLAGS=" + cflags,
- },
- })
- }
+ if goos != "android" {
+ t.registerTest("swig", "", &goTest{dir: "../misc/swig"})
}
}
if t.cgoEnabled {
return true
}
-func (t *tester) hasCxx() bool {
- cxx, _ := exec.LookPath(compilerEnvLookup("CXX", defaultcxx, goos, goarch))
- return cxx != ""
-}
-
-func (t *tester) hasSwig() bool {
- swig, err := exec.LookPath("swig")
- if err != nil {
- return false
- }
-
- // Check that swig was installed with Go support by checking
- // that a go directory exists inside the swiglib directory.
- // See https://golang.org/issue/23469.
- output, err := exec.Command(swig, "-go", "-swiglib").Output()
- if err != nil {
- return false
- }
- swigDir := strings.TrimSpace(string(output))
-
- _, err = os.Stat(filepath.Join(swigDir, "go"))
- if err != nil {
- return false
- }
-
- // Check that swig has a new enough version.
- // See https://golang.org/issue/22858.
- out, err := exec.Command(swig, "-version").CombinedOutput()
- if err != nil {
- return false
- }
-
- re := regexp.MustCompile(`[vV]ersion +(\d+)([.]\d+)?([.]\d+)?`)
- matches := re.FindSubmatch(out)
- if matches == nil {
- // Can't find version number; hope for the best.
- return true
- }
-
- major, err := strconv.Atoi(string(matches[1]))
- if err != nil {
- // Can't find version number; hope for the best.
- return true
- }
- if major < 3 {
- return false
- }
- if major > 3 {
- // 4.0 or later
- return true
- }
-
- // We have SWIG version 3.x.
- if len(matches[2]) > 0 {
- minor, err := strconv.Atoi(string(matches[2][1:]))
- if err != nil {
- return true
- }
- if minor > 0 {
- // 3.1 or later
- return true
- }
- }
-
- // We have SWIG version 3.0.x.
- if len(matches[3]) > 0 {
- patch, err := strconv.Atoi(string(matches[3][1:]))
- if err != nil {
- return true
- }
- if patch < 6 {
- // Before 3.0.6.
- return false
- }
- }
-
- return true
-}
-
// hasParallelism is a copy of the function
// internal/testenv.HasParallelism, which can't be used here
// because cmd/dist can not import internal packages during bootstrap.