// Therefore, we use the Version field on Solaris when available.
	ver := un.Version[:]
	if runtime.GOOS == "illumos" {
		// Illumos distributions use different formats without a parsable
		// and unified pattern for the Version field while Release level
		// string is guaranteed to be in x.y or x.y.z format regardless of
		// whether the kernel is Solaris or illumos.
		ver = un.Release[:]
	}

func initialize() {
	const filename = "testdata/parser.go"

	src, err := os.ReadFile(filename)
	if err != nil {
		log.Fatalf("%s", err)
	}

	file, err := parser.ParseFile(fset, filename, src, parser.ParseComments)
	if err != nil {
		log.Fatalf("%s", err)
	}

	var buf bytes.Buffer
	testprint(&buf, file)
	if !bytes.Equal(buf.Bytes(), src) {

				}
			}
		})
	})
}

func walkCodes(t *testing.T, f func(string, int, *ast.ValueSpec)) {
	t.Helper()
	fset := token.NewFileSet()
	file, err := parser.ParseFile(fset, "codes.go", nil, parser.ParseComments)
	if err != nil {
		t.Fatal(err)
	}
	conf := Config{Importer: importer.Default()}
	info := &Info{
		Types: make(map[ast.Expr]TypeAndValue),

			sortedIPList: []string{"127.0.0.1"},
		},
		// Non parsable ip is assumed to be hostame and gets preserved
		// as the left most elements, regardless of IP based sorting.
		{
			ipList:       []string{"hostname", "127.0.0.1", "192.168.1.106"},
			sortedIPList: []string{"hostname", "192.168.1.106", "127.0.0.1"},
		},
		// Non parsable ip is assumed to be hostname, with a mixed input of ip and hostname.

	t, err := c.Parse(s)
	if err != nil {
		panic(err)
	}
	return t
}

// MustParseBase is like ParseBase, but panics if the given base cannot be parsed.
// It simplifies safe initialization of Base values.
func MustParseBase(s string) Base {
	b, err := ParseBase(s)
	if err != nil {
		panic(err)
	}
	return b
}

// MustParseScript is like ParseScript, but panics if the given script cannot be

  /**
   * Returns an {@code UnsignedInteger} holding the value of the specified {@code String}, parsed as
   * an unsigned {@code int} value.
   *
   * @throws NumberFormatException if the string does not contain a parsable unsigned {@code int}
   *     value
   */
  public static UnsignedInteger valueOf(String string) {
    return valueOf(string, 10);
  }

  /**

  /**
   * Returns an {@code UnsignedInteger} holding the value of the specified {@code String}, parsed as
   * an unsigned {@code int} value.
   *
   * @throws NumberFormatException if the string does not contain a parsable unsigned {@code int}
   *     value
   */
  public static UnsignedInteger valueOf(String string) {
    return valueOf(string, 10);
  }

  /**

	var buf bytes.Buffer
	buf.Write(fixNL(a.Comment))
	for _, f := range a.Files {
		fmt.Fprintf(&buf, "-- %s --\n", f.Name)
		buf.Write(fixNL(f.Data))
	}
	return buf.Bytes()
}

// ParseFile parses the named file as an archive.
func ParseFile(file string) (*Archive, error) {
	data, err := os.ReadFile(file)
	if err != nil {
		return nil, err
	}
	return Parse(data), nil
}

// Parse parses the serialized form of an Archive.

func (t1) f1() {}
func (t1) f2() {}

func (t2) f1() {}

func (x *t2) f2() {}
`

func TestFilterDuplicates(t *testing.T) {
	// parse input
	fset := token.NewFileSet()
	file, err := parser.ParseFile(fset, "", input, 0)
	if err != nil {
		t.Fatal(err)
	}

	// create package
	files := map[string]*ast.File{"": file}
	pkg, err := ast.NewPackage(fset, files, nil, nil)
	if err != nil {
		t.Fatal(err)
	}

const bad = token.NoPos

//line fake.go:42:11
func ok(pos p) bool {
	return pos != bad
}

/*line :7:9*/func main() {
	fmt.Println(ok(bad) == bad.IsValid())
}
`

	f, err := parser.ParseFile(fset, "main.go", src, 0)
	if err != nil {
		fmt.Println(err)
		return
	}

	// Print the location and kind of each declaration in f.
	for _, decl := range f.Decls {