func loadExportsGoPath(dir string) map[string]bool {
exports := make(map[string]bool)
buildPkg, err := build.ImportDir(dir, 0)
if err != nil {
if strings.Contains(err.Error(), "no buildable Go source files in") {
return nil
}
fmt.Fprintf(os.Stderr, "could not import %q: %v\n", dir, err)
return nil
}
fset := token.NewFileSet()
for _, files := range [...][]string{buildPkg.GoFiles, buildPkg.CgoFiles} {
for _, file := range files {
f, err := parser.ParseFile(fset, filepath.Join(dir, file), nil, 0)
if err != nil {
fmt.Fprintf(os.Stderr, "could not parse %q: %v\n", file, err)
continue
}
for name := range f.Scope.Objects {
if ast.IsExported(name) {
exports[name] = true
}
}
}
}
return exports
}
// filterIdentList removes unexported names from list in place
// and returns the resulting list.
//
func filterIdentList(list []*ast.Ident) []*ast.Ident {
j := 0
for _, x := range list {
if ast.IsExported(x.Name) {
list[j] = x
j++
}
}
return list[0:j]
}
func (r *reader) filterDecl(decl ast.Decl) bool {
switch d := decl.(type) {
case *ast.GenDecl:
d.Specs = r.filterSpecList(d.Specs, d.Tok)
return len(d.Specs) > 0
case *ast.FuncDecl:
// ok to filter these methods early because any
// conflicting method will be filtered here, too -
// thus, removing these methods early will not lead
// to the false removal of possible conflicts
return ast.IsExported(d.Name.Name)
}
return false
}
// filterFieldList removes unexported fields (field names) from the field list
// in place and reports whether fields were removed. Anonymous fields are
// recorded with the parent type. filterType is called with the types of
// all remaining fields.
//
func (r *reader) filterFieldList(parent *namedType, fields *ast.FieldList, ityp *ast.InterfaceType) (removedFields bool) {
if fields == nil {
return
}
list := fields.List
j := 0
for _, field := range list {
keepField := false
if n := len(field.Names); n == 0 {
// anonymous field
fname := r.recordAnonymousField(parent, field.Type)
if ast.IsExported(fname) {
keepField = true
} else if ityp != nil && fname == "error" {
// possibly the predeclared error interface; keep
// it for now but remember this interface so that
// it can be fixed if error is also defined locally
keepField = true
r.remember(ityp)
}
} else {
field.Names = filterIdentList(field.Names)
if len(field.Names) < n {
removedFields = true
}
if len(field.Names) > 0 {
keepField = true
}
}
if keepField {
r.filterType(nil, field.Type)
list[j] = field
j++
}
}
if j < len(list) {
removedFields = true
}
fields.List = list[0:j]
return
}
// Id returns name if it is exported, otherwise it
// returns the name qualified with the package path.
func Id(pkg *Package, name string) string {
if ast.IsExported(name) {
return name
}
// unexported names need the package path for differentiation
// (if there's no package, make sure we don't start with '.'
// as that may change the order of methods between a setup
// inside a package and outside a package - which breaks some
// tests)
path := "_"
// TODO(gri): shouldn't !ast.IsExported(name) => pkg != nil be an precondition?
// if pkg == nil {
// panic("nil package in lookup of unexported name")
// }
if pkg != nil {
path = pkg.path
if path == "" {
path = "_"
}
}
return path + "." + name
}
func (r *reader) filterSpec(spec ast.Spec, tok token.Token) bool {
switch s := spec.(type) {
case *ast.ImportSpec:
// always keep imports so we can collect them
return true
case *ast.ValueSpec:
s.Names.List = filterIdentList(s.Names.List)
if len(s.Names.List) > 0 {
r.filterType(nil, s.Type)
return true
}
case *ast.TypeSpec:
if name := s.Name.Name; ast.IsExported(name) {
r.filterType(r.lookupType(s.Name.Name), s.Type)
return true
} else if name == "error" {
// special case: remember that error is declared locally
r.errorDecl = true
}
}
return false
}
func sortedFuncs(m methodSet, allMethods bool) []*Func {
list := make([]*Func, len(m))
i := 0
for _, m := range m {
// determine which methods to include
switch {
case m.Decl == nil:
// exclude conflict entry
case allMethods, m.Level == 0, !ast.IsExported(removeStar(m.Orig)):
// forced inclusion, method not embedded, or method
// embedded but original receiver type not exported
list[i] = m
i++
}
}
list = list[0:i]
sortBy(
func(i, j int) bool { return list[i].Name < list[j].Name },
func(i, j int) { list[i], list[j] = list[j], list[i] },
len(list),
)
return list
}
func loadExports(dir string) map[string]bool {
exports := make(map[string]bool)
buildPkg, err := build.ImportDir(dir, 0)
if err != nil {
if strings.Contains(err.Error(), "no buildable Go source files in") {
return nil
}
log.Printf("could not import %q: %v", dir, err)
return nil
}
for _, file := range buildPkg.GoFiles {
f, err := parser.ParseFile(fset, filepath.Join(dir, file), nil, 0)
if err != nil {
log.Printf("could not parse %q: %v", file, err)
continue
}
for name := range f.Scope.Objects {
if ast.IsExported(name) {
exports[name] = true
}
}
}
return exports
}
func (obj *object) Exported() bool { return ast.IsExported(obj.name) }