func newBinder(bindPkg *build.Package) (*binder, error) {
if bindPkg.Name == "main" {
return nil, fmt.Errorf("package %q: can only bind a library package", bindPkg.Name)
}
fset := token.NewFileSet()
hasErr := false
var files []*ast.File
for _, filename := range bindPkg.GoFiles {
p := filepath.Join(bindPkg.Dir, filename)
file, err := parser.ParseFile(fset, p, nil, parser.AllErrors)
if err != nil {
hasErr = true
if list, _ := err.(scanner.ErrorList); len(list) > 0 {
for _, err := range list {
fmt.Fprintln(os.Stderr, err)
}
} else {
fmt.Fprintln(os.Stderr, err)
}
}
files = append(files, file)
}
if hasErr {
return nil, errors.New("package parsing failed.")
}
conf := loader.Config{
Fset: fset,
AllowErrors: true,
}
conf.TypeChecker.IgnoreFuncBodies = true
conf.TypeChecker.FakeImportC = true
conf.TypeChecker.DisableUnusedImportCheck = true
var tcErrs []error
conf.TypeChecker.Error = func(err error) {
tcErrs = append(tcErrs, err)
}
conf.CreateFromFiles(bindPkg.ImportPath, files...)
program, err := conf.Load()
if err != nil {
for _, err := range tcErrs {
fmt.Fprintln(os.Stderr, err)
}
return nil, err
}
b := &binder{
files: files,
fset: fset,
pkg: program.Created[0].Pkg,
}
return b, nil
}
func genPkg(pkg *build.Package) {
files := parseFiles(pkg.Dir, pkg.GoFiles)
if len(files) == 0 {
return // some error has been reported
}
conf := loader.Config{
Fset: fset,
AllowErrors: true,
}
conf.TypeChecker.IgnoreFuncBodies = true
conf.TypeChecker.FakeImportC = true
conf.TypeChecker.DisableUnusedImportCheck = true
var tcErrs []error
conf.TypeChecker.Error = func(err error) {
tcErrs = append(tcErrs, err)
}
conf.CreateFromFiles(pkg.ImportPath, files...)
program, err := conf.Load()
if err != nil {
for _, err := range tcErrs {
errorf("%v", err)
}
errorf("%v", err)
return
}
p := program.Created[0].Pkg
fname := defaultFileName(*lang, p)
switch *lang {
case "java":
w, closer := writer(fname, p)
processErr(bind.GenJava(w, fset, p, *javaPkg))
closer()
case "go":
w, closer := writer(fname, p)
processErr(bind.GenGo(w, fset, p))
closer()
case "objc":
if fname == "" {
processErr(bind.GenObjc(os.Stdout, fset, p, *prefix, true))
processErr(bind.GenObjc(os.Stdout, fset, p, *prefix, false))
} else {
hname := fname[:len(fname)-2] + ".h"
w, closer := writer(hname, p)
processErr(bind.GenObjc(w, fset, p, *prefix, true))
closer()
w, closer = writer(fname, p)
processErr(bind.GenObjc(w, fset, p, *prefix, false))
closer()
}
default:
errorf("unknown target language: %q", *lang)
}
}