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Initial commit with a working build.

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Some of the tests are failing.
This commit is contained in:
sridharv
2016-03-27 19:53:45 +02:00
commit 327d3f573c
7 changed files with 807 additions and 0 deletions
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178
.gitignore vendored Normal file
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# Compiled Object files, Static and Dynamic libs (Shared Objects)
*.o
*.a
*.so
# Folders
_obj
_test
# Architecture specific extensions/prefixes
*.[568vq]
[568vq].out
*.cgo1.go
*.cgo2.c
_cgo_defun.c
_cgo_gotypes.go
_cgo_export.*
_testmain.go
*.exe
*.test
*.prof
*.swp
.idea
*.iml
node_modules
out
tutorials
.DS_Store
*.xcuserstate
project.xcworkspace/
.Trashes
*~.nib
DerivedData/
build/
/vendor/
*.pbxuser
# .mode1v3: http://lists.apple.com/archives/xcode-users/2007/Oct/msg00465.html
*.mode1v3
# .mode2v3: http://lists.apple.com/archives/xcode-users/2007/Oct/msg00465.html
*.mode2v3
# .perspectivev3: http://stackoverflow.com/questions/5223297/xcode-projects-what-is-a-perspectivev3-file
*.perspectivev3
# NB: also, whitelist the default ones, some projects need to use these
!default.pbxuser
!default.mode1v3
!default.mode2v3
!default.perspectivev3
####
# Xcode 4 - semi-personal settings
#
# Apple Shared data that Apple put in the wrong folder
# c.f. http://stackoverflow.com/a/19260712/153422
# FROM ANSWER: Apple says "don't ignore it"
# FROM COMMENTS: Apple is wrong; Apple code is too buggy to trust; there are no known negative side-effects to ignoring Apple's unofficial advice and instead doing the thing that actively fixes bugs in Xcode
# Up to you, but ... current advice: ignore it.
*.xccheckout
#
#
# OPTION 1: ---------------------------------
# throw away ALL personal settings (including custom schemes!
# - unless they are "shared")
# As per build/ and DerivedData/, this ought to have a trailing slash
#
# NB: this is exclusive with OPTION 2 below
xcuserdata/
# OPTION 2: ---------------------------------
# get rid of ALL personal settings, but KEEP SOME OF THEM
# - NB: you must manually uncomment the bits you want to keep
#
# NB: this *requires* git v1.8.2 or above; you may need to upgrade to latest OS X,
# or manually install git over the top of the OS X version
# NB: this is exclusive with OPTION 1 above
#
#xcuserdata/**/*
# (requires option 2 above): Personal Schemes
#
#!xcuserdata/**/xcschemes/*
####
# XCode 4 workspaces - more detailed
#
# Workspaces are important! They are a core feature of Xcode - don't exclude them :)
#
# Workspace layout is quite spammy. For reference:
#
# /(root)/
# /(project-name).xcodeproj/
# project.pbxproj
# /project.xcworkspace/
# contents.xcworkspacedata
# /xcuserdata/
# /(your name)/xcuserdatad/
# UserInterfaceState.xcuserstate
# /xcshareddata/
# /xcschemes/
# (shared scheme name).xcscheme
# /xcuserdata/
# /(your name)/xcuserdatad/
# (private scheme).xcscheme
# xcschememanagement.plist
#
#
####
# Xcode 4 - Deprecated classes
#
# Allegedly, if you manually "deprecate" your classes, they get moved here.
#
# We're using source-control, so this is a "feature" that we do not want!
*.moved-aside
#
# COCOAPODS:
#
# c.f. http://guides.cocoapods.org/using/using-cocoapods.html#what-is-a-podfilelock
# c.f. http://guides.cocoapods.org/using/using-cocoapods.html#should-i-ignore-the-pods-directory-in-source-control
!Podfile.lock
# Android
#
# Built application files
*.apk
*.ap_
# Files for the Dalvik VM
*.dex
# Java class files
*.class
# Generated files
bin/
gen/
# Gradle files
.gradle/
build/
# Local configuration file (sdk path, etc)
local.properties
# Proguard folder generated by Eclipse
proguard/
# Log Files
*.log
# Android Studio Navigation editor temp files
.navigation/
# Android Studio captures folder
captures/

201
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Apache License
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5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
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6. Trademarks. This License does not grant permission to use the trade
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the Work or Derivative Works thereof, You may choose to offer,
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defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
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Copyright 2016 Sridhar Venkatakrishnan
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package go;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.io.InputStream;
import java.io.File;
import java.io.IOException;
public class LoadJNI {
static {
try {
loadLibrary();
} catch (IOException ex) {
throw new RuntimeException(ex);
}
}
private static void loadLibrary() throws IOException {
File temp = File.createTempFile("gojava", "gojava");
temp.deleteOnExit();
InputStream input = LoadJNI.class.getResourceAsStream("/go/libgojava");
if (input == null) {
throw new RuntimeException("Go JNI library not found in classpath");
}
OutputStream out = new FileOutputStream(temp);
try {
byte[] buffer = new byte[1024];
int readBytes = 0;
while ((readBytes = input.read(buffer)) != -1) {
out.write(buffer, 0, readBytes);
}
} finally {
out.close();
input.close();
}
System.load(temp.getAbsolutePath());
}
}

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package go;
import go.LoadJNI;
import java.util.Arrays;
import java.lang.Math;
import java.lang.reflect.Method;
import go.SeqTest;
public class MoreAsserts {
public static void assertTrue(String msg, boolean condition) {
if (!condition) {
throw new RuntimeException(msg);
}
}
public static void assertTrue(boolean condition) {
if (!condition) {
throw new RuntimeException("assert failed");
}
}
public static void assertEquals(int expected, int actual) {
assertTrue(expected == actual);
}
public static void assertFalse(boolean condition) {
assertTrue(!condition);
}
public static void assertFalse(String msg, boolean condition) {
assertTrue(msg, !condition);
}
public static void assertEquals(String msg, int expected, int actual) {
assertTrue(msg, expected == actual);
}
public static void assertEquals(String msg, long expected, long actual) {
assertTrue(msg, expected == actual);
}
public static void assertEquals(String msg, String expected, String actual) {
assertTrue(msg, expected == actual);
}
public static void assertEquals(String msg, boolean expected, boolean actual) {
assertTrue(msg, expected == actual);
}
public static void assertEquals(String msg, byte[] expected, byte[] actual) {
assertTrue(msg, Arrays.equals(expected, actual));
}
public static void assertEquals(String msg, double expected, double actual, double epsilon) {
assertTrue(msg, Math.abs(expected - actual) < epsilon);
}
public static void assertEquals(String msg, Object expected, Object actual) {
assertTrue(msg, (expected == null && actual == null) || (expected.equals(actual)));
}
public static void fail(String msg) {
throw new RuntimeException(msg);
}
public static void main(String[] args) {
SeqTest test = new SeqTest();
Class c = test.getClass();
for (Method method : c.getDeclaredMethods()) {
if (!method.getName().startsWith("test")) {
continue;
}
System.out.print(method.getName());
try {
method.invoke(test);
System.out.println(" PASS");
} catch (Exception ex) {
System.out.println(" FAIL");
ex.printStackTrace();
}
}
}
}

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## GoJava - gobind for java
WIP: This doesn't work yet

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gojava.go Normal file
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package gojava
import (
"go/build"
"path/filepath"
"reflect"
"fmt"
"go/importer"
"go/token"
"go/types"
"os"
"os/exec"
"strings"
"io/ioutil"
"archive/zip"
"runtime"
"github.com/sridharv/gomobile-java/bind"
)
func runCommandWithEnv(env []string, cmd string, args ...string) error {
c := exec.Command(cmd, args...)
c.Env = append(os.Environ(), env...)
out, err := c.CombinedOutput()
if err != nil {
return fmt.Errorf("%s %s %s: %v: %s", strings.Join(env, " "), cmd, strings.Join(args, " "), err, string(out))
}
return nil
}
func runCommand(cmd string, args ...string) error {
return runCommandWithEnv([]string{}, cmd, args...)
}
func createJar(target string, pkgs ...string) error {
javaHome := os.Getenv("JAVA_HOME")
if javaHome == "" {
return fmt.Errorf("$JAVA_HOME not set")
}
tmpDir, err := ioutil.TempDir("", "gojava")
if err != nil {
return err
}
defer os.RemoveAll(tmpDir)
// Load export data for the packages
if err := runCommand("go", append([]string{"install"}, pkgs...)...); err != nil {
return err
}
typePkgs := make([]*types.Package, len(pkgs))
for i, p := range pkgs {
var err error
if typePkgs[i], err = importer.Default().Import(p); err != nil {
return err
}
}
bindDir := filepath.Join(tmpDir, "gojava_bind")
mainDir := filepath.Join(bindDir, "main")
mainFile := filepath.Join(mainDir, "main.go")
javaDir := filepath.Join(tmpDir, "src/go")
classDir := filepath.Join(tmpDir, "classes/go")
for _, d := range []string{classDir, javaDir, mainDir} {
if err := os.MkdirAll(d, 0700); err != nil {
return err
}
}
javacArgs := []string{"-d", filepath.Join(tmpDir, "classes"), "-sourcepath", filepath.Join(tmpDir, "src")}
fs := token.NewFileSet()
for _, p := range typePkgs {
goFile := filepath.Join(bindDir, "go_"+p.Name()+"main.go")
f, err := os.OpenFile(goFile, os.O_CREATE|os.O_RDWR, 0600)
if err != nil {
return fmt.Errorf("failed to open: %s: %v", goFile, err)
}
conf := &bind.GeneratorConfig{Writer: f, Fset: fs, Pkg: p, AllPkg: typePkgs}
if err := bind.GenGo(conf); err != nil {
return fmt.Errorf("failed to bind %s:%v", p.Name(), err)
}
if err := f.Close(); err != nil {
return err
}
javaFile := strings.Title(p.Name()) + ".java"
if err := bindJava(javaDir, javaFile, conf, int(bind.Java)); err != nil {
return err
}
if err := bindJava(bindDir, "java_"+p.Name()+".c", conf, int(bind.JavaC)); err != nil {
return err
}
if err := bindJava(bindDir, p.Name()+".h", conf, int(bind.JavaH)); err != nil {
return err
}
javacArgs = append(javacArgs, filepath.Join(javaDir, javaFile))
}
bindPkg, err := build.Import(reflect.TypeOf(bind.ErrorList{}).PkgPath(), "", build.FindOnly)
if err != nil {
return err
}
bindJavaPkgDir := filepath.Join(bindPkg.Dir, "java")
toCopy := []filePair{
{filepath.Join(bindDir, "seq.go"), filepath.Join(bindPkg.Dir, "seq.go.support")},
{filepath.Join(bindDir, "seq_java.go"), filepath.Join(bindJavaPkgDir, "seq_android.go.support")},
{filepath.Join(bindDir, "seq.c"), filepath.Join(bindJavaPkgDir, "seq_android.c.support")},
{filepath.Join(bindDir, "seq.h"), filepath.Join(bindJavaPkgDir, "seq.h")},
{filepath.Join(javaDir, "Seq.java"), filepath.Join(bindJavaPkgDir, "Seq.java")},
{filepath.Join(javaDir, "LoadJNI.java"), filepath.Join(bindPkg.Dir, "..", "..", "gojava", "LoadJNI.java")},
}
if err := copyFiles(toCopy); err != nil {
return err
}
if err := ioutil.WriteFile(mainFile, []byte(fmt.Sprintf(javaMain, bindPkg.ImportPath)), 0600); err != nil {
return err
}
inc1, inc2 := filepath.Join(javaHome, "include"), filepath.Join(javaHome, "include", runtime.GOOS)
flagFile := filepath.Join(bindDir, "gojavacimport.go")
if err := ioutil.WriteFile(flagFile, []byte(fmt.Sprintf(javaInclude, inc1, inc2)), 0600); err != nil {
return err
}
dylib := filepath.Join(classDir, "libgojava")
back, err := cdTo(mainDir)
if err != nil {
return err
}
defer back()
if err := runCommand("go", "build", "-o", dylib, "-buildmode=c-shared", "."); err != nil {
return err
}
if err := os.Chdir(javaDir); err != nil {
return err
}
javacArgs = append(javacArgs, filepath.Join(javaDir, "Seq.java"), filepath.Join(javaDir, "LoadJNI.java"))
if err := runCommand("javac", javacArgs...); err != nil {
return err
}
t, err := os.OpenFile(target, os.O_CREATE|os.O_RDWR|os.O_TRUNC, 0600)
if err != nil {
return err
}
w := zip.NewWriter(t)
jarDir := filepath.Join(tmpDir, "classes")
if err := filepath.Walk(jarDir, func(path string, info os.FileInfo, walkErr error) error {
if walkErr != nil {
return walkErr
}
if info.IsDir() {
return nil
}
fileName, err := filepath.Rel(jarDir, path)
if err != nil {
return err
}
f, err := w.Create(fileName)
if err != nil {
return err
}
d, err := ioutil.ReadFile(path)
if err != nil {
return err
}
if _, err := f.Write(d); err != nil {
return err
}
return nil
}); err != nil {
return err
}
if err := w.Close(); err != nil {
return err
}
if err := t.Close(); err != nil {
return err
}
return nil
}
func cdTo(target string) (func(), error) {
cur, err := os.Getwd()
if err != nil {
return nil, err
}
if err := os.Chdir(target); err != nil {
return nil, err
}
return func() {
if err := os.Chdir(cur); err != nil {
panic(err)
}
}, nil
}
func copyFile(dst, src string) error {
d, err := ioutil.ReadFile(src)
if err != nil {
return err
}
return ioutil.WriteFile(dst, d, 0600)
}
type filePair struct {
dst string
src string
}
func copyFiles(files []filePair) error {
for _, p := range files {
if err := copyFile(p.dst, p.src); err != nil {
return err
}
}
return nil
}
func bindJava(dir, file string, conf *bind.GeneratorConfig, ft int) error {
path := filepath.Join(dir, file)
w, err := os.OpenFile(path, os.O_CREATE|os.O_RDWR, 0600)
if err != nil {
return fmt.Errorf("failed to generate %s: %v", path, err)
}
conf.Writer = w
defer func() { conf.Writer = nil }()
switch ft {
case int(bind.Java):
err = bind.GenJava(conf, "", bind.Java)
case int(bind.JavaH):
err = bind.GenJava(conf, "", bind.JavaH)
case int(bind.JavaC):
err = bind.GenJava(conf, "", bind.JavaC)
default:
err = fmt.Errorf("unsupported bind type: %d", ft)
}
if err != nil {
return err
}
return w.Close()
}
const javaInclude = `package gojava_bind
// #cgo CFLAGS: -Wall -I%s -I%s
import "C"
`
const javaMain = `package main
import (
_ %q
_ ".."
)
func main() {}
`

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package gojava
import (
"testing"
"io/ioutil"
"path/filepath"
"os/exec"
"os"
)
func TestJavaBind(t *testing.T) {
tmpDir, err := ioutil.TempDir("", "gojavatest")
if err != nil {
t.Fatal(err)
}
jar := filepath.Join("/tmp", "gojavatest.jar")
if err := createJar(jar,
"github.com/sridharv/gomobile-java/bind/testpkg",
"github.com/sridharv/gomobile-java/bind/testpkg/secondpkg",
"github.com/sridharv/gomobile-java/bind/testpkg/simplepkg",
); err != nil {
t.Fatal(err)
}
toCopy := []filePair{
{filepath.Join(tmpDir, "MoreAsserts.java"), "MoreAsserts.java"},
{filepath.Join(tmpDir, "SeqTest.java"), "../gomobile-java/bind/java/SeqTest.java"},
}
if err := copyFiles(toCopy); err != nil {
t.Fatal(err)
}
if err := runCommand("javac", "-cp", jar, "-d", tmpDir, toCopy[0].dst, toCopy[1].dst); err != nil {
t.Fatal(err)
}
cmd := exec.Command("java", "-cp", jar + ":" + tmpDir, "go.MoreAsserts")
cmd.Stderr = os.Stderr
cmd.Stdout = os.Stdout
if err := cmd.Run(); err != nil {
t.Fatal(err)
}
}