func genPkg(p *types.Package, allPkg []*types.Package, classes []*java.Class) {
fname := defaultFileName(*lang, p)
conf := &bind.GeneratorConfig{
Fset: fset,
Pkg: p,
AllPkg: allPkg,
}
switch *lang {
case "java":
var buf bytes.Buffer
g := &bind.JavaGen{
JavaPkg: *javaPkg,
Generator: &bind.Generator{
Printer: &bind.Printer{Buf: &buf, IndentEach: []byte(" ")},
Fset: conf.Fset,
AllPkg: conf.AllPkg,
Pkg: conf.Pkg,
},
}
g.Init(classes)
pkgname := bind.JavaPkgName(*javaPkg, p)
pkgDir := strings.Replace(pkgname, ".", "/", -1)
buf.Reset()
w, closer := writer(filepath.Join(pkgDir, fname))
processErr(g.GenJava())
io.Copy(w, &buf)
closer()
for i, name := range g.ClassNames() {
buf.Reset()
w, closer := writer(filepath.Join(pkgDir, name+".java"))
processErr(g.GenClass(i))
io.Copy(w, &buf)
closer()
}
buf.Reset()
pn := "universe"
if p != nil {
pn = p.Name()
}
cname := "java_" + pn + ".c"
w, closer = writer(cname)
processErr(g.GenC())
io.Copy(w, &buf)
closer()
buf.Reset()
hname := pn + ".h"
w, closer = writer(hname)
processErr(g.GenH())
io.Copy(w, &buf)
closer()
// Generate support files along with the universe package
if p == nil {
p, err := build.Default.Import("golang.org/x/mobile/bind", ".", build.ImportComment)
if err != nil {
errorf(`"golang.org/x/mobile/bind" is not found; run go get golang.org/x/mobile/bind: %v`)
return
}
repo := filepath.Clean(filepath.Join(p.Dir, "..")) // golang.org/x/mobile directory.
for _, javaFile := range []string{"Seq.java", "LoadJNI.java"} {
src := filepath.Join(repo, "bind/java/"+javaFile)
in, err := os.Open(src)
if err != nil {
errorf("failed to open Java support file: %v", err)
}
defer in.Close()
w, closer := writer(filepath.Join("go", javaFile))
defer closer()
if _, err := io.Copy(w, in); err != nil {
errorf("failed to copy Java support file: %v", err)
return
}
}
}
case "go":
w, closer := writer(fname)
conf.Writer = w
processErr(bind.GenGo(conf))
closer()
case "objc":
var gohname string
if p != nil {
gohname = p.Name() + ".h"
} else {
gohname = "GoUniverse.h"
}
var buf bytes.Buffer
g := &bind.ObjcGen{
Generator: &bind.Generator{
Printer: &bind.Printer{Buf: &buf, IndentEach: []byte("\t")},
Fset: conf.Fset,
AllPkg: conf.AllPkg,
Pkg: conf.Pkg,
},
Prefix: *prefix,
}
g.Init(nil)
w, closer := writer(gohname)
processErr(g.GenGoH())
io.Copy(w, &buf)
closer()
hname := fname[:len(fname)-2] + ".h"
w, closer = writer(hname)
processErr(g.GenH())
io.Copy(w, &buf)
closer()
w, closer = writer(fname)
conf.Writer = w
processErr(g.GenM())
io.Copy(w, &buf)
closer()
default:
errorf("unknown target language: %q", *lang)
}
}
func (b *binder) GenJava(pkg *types.Package, allPkg []*types.Package, classes []*java.Class, outdir, androidDir string) error {
jpkgname := bind.JavaPkgName(bindJavaPkg, pkg)
javadir := filepath.Join(androidDir, strings.Replace(jpkgname, ".", "/", -1))
var className string
pkgName := ""
pkgPath := ""
javaPkg := ""
if pkg != nil {
className = strings.Title(pkg.Name())
pkgName = pkg.Name()
pkgPath = pkg.Path()
javaPkg = bindJavaPkg
} else {
pkgName = "universe"
className = "Universe"
}
javaFile := filepath.Join(javadir, className+".java")
cFile := filepath.Join(outdir, "java_"+pkgName+".c")
hFile := filepath.Join(outdir, pkgName+".h")
bindOption := "-lang=java"
if javaPkg != "" {
bindOption += " -javapkg=" + javaPkg
}
var buf bytes.Buffer
g := &bind.JavaGen{
JavaPkg: javaPkg,
Generator: &bind.Generator{
Printer: &bind.Printer{Buf: &buf, IndentEach: []byte(" ")},
Fset: b.fset,
AllPkg: allPkg,
Pkg: pkg,
},
}
g.Init(classes)
generate := func(w io.Writer) error {
if buildX {
printcmd("gobind %s -outdir=%s %s", bindOption, javadir, pkgPath)
}
if buildN {
return nil
}
buf.Reset()
if err := g.GenJava(); err != nil {
return err
}
_, err := io.Copy(w, &buf)
return err
}
if err := writeFile(javaFile, generate); err != nil {
return err
}
for i, name := range g.ClassNames() {
generate := func(w io.Writer) error {
if buildN {
return nil
}
buf.Reset()
if err := g.GenClass(i); err != nil {
return err
}
_, err := io.Copy(w, &buf)
return err
}
classFile := filepath.Join(javadir, name+".java")
if err := writeFile(classFile, generate); err != nil {
return err
}
}
generate = func(w io.Writer) error {
if buildN {
return nil
}
buf.Reset()
if err := g.GenC(); err != nil {
return err
}
_, err := io.Copy(w, &buf)
return err
}
if err := writeFile(cFile, generate); err != nil {
return err
}
generate = func(w io.Writer) error {
if buildN {
return nil
}
buf.Reset()
if err := g.GenH(); err != nil {
return err
}
_, err := io.Copy(w, &buf)
return err
}
return writeFile(hFile, generate)
}