diff options
Diffstat (limited to 'vendor/github.com/golang/protobuf/proto/text_parser.go')
-rw-r--r-- | vendor/github.com/golang/protobuf/proto/text_parser.go | 87 |
1 files changed, 38 insertions, 49 deletions
diff --git a/vendor/github.com/golang/protobuf/proto/text_parser.go b/vendor/github.com/golang/protobuf/proto/text_parser.go index 7e6f145a..0685bae3 100644 --- a/vendor/github.com/golang/protobuf/proto/text_parser.go +++ b/vendor/github.com/golang/protobuf/proto/text_parser.go @@ -206,7 +206,6 @@ func (p *textParser) advance() { var ( errBadUTF8 = errors.New("proto: bad UTF-8") - errBadHex = errors.New("proto: bad hexadecimal") ) func unquoteC(s string, quote rune) (string, error) { @@ -277,60 +276,47 @@ func unescape(s string) (ch string, tail string, err error) { return "?", s, nil // trigraph workaround case '\'', '"', '\\': return string(r), s, nil - case '0', '1', '2', '3', '4', '5', '6', '7', 'x', 'X': + case '0', '1', '2', '3', '4', '5', '6', '7': if len(s) < 2 { return "", "", fmt.Errorf(`\%c requires 2 following digits`, r) } - base := 8 - ss := s[:2] + ss := string(r) + s[:2] s = s[2:] - if r == 'x' || r == 'X' { - base = 16 - } else { - ss = string(r) + ss - } - i, err := strconv.ParseUint(ss, base, 8) + i, err := strconv.ParseUint(ss, 8, 8) if err != nil { - return "", "", err + return "", "", fmt.Errorf(`\%s contains non-octal digits`, ss) } return string([]byte{byte(i)}), s, nil - case 'u', 'U': - n := 4 - if r == 'U' { + case 'x', 'X', 'u', 'U': + var n int + switch r { + case 'x', 'X': + n = 2 + case 'u': + n = 4 + case 'U': n = 8 } if len(s) < n { - return "", "", fmt.Errorf(`\%c requires %d digits`, r, n) - } - - bs := make([]byte, n/2) - for i := 0; i < n; i += 2 { - a, ok1 := unhex(s[i]) - b, ok2 := unhex(s[i+1]) - if !ok1 || !ok2 { - return "", "", errBadHex - } - bs[i/2] = a<<4 | b + return "", "", fmt.Errorf(`\%c requires %d following digits`, r, n) } + ss := s[:n] s = s[n:] - return string(bs), s, nil + i, err := strconv.ParseUint(ss, 16, 64) + if err != nil { + return "", "", fmt.Errorf(`\%c%s contains non-hexadecimal digits`, r, ss) + } + if r == 'x' || r == 'X' { + return string([]byte{byte(i)}), s, nil + } + if i > utf8.MaxRune { + return "", "", fmt.Errorf(`\%c%s is not a valid Unicode code point`, r, ss) + } + return string(i), s, nil } return "", "", fmt.Errorf(`unknown escape \%c`, r) } -// Adapted from src/pkg/strconv/quote.go. -func unhex(b byte) (v byte, ok bool) { - switch { - case '0' <= b && b <= '9': - return b - '0', true - case 'a' <= b && b <= 'f': - return b - 'a' + 10, true - case 'A' <= b && b <= 'F': - return b - 'A' + 10, true - } - return 0, false -} - // Back off the parser by one token. Can only be done between calls to next(). // It makes the next advance() a no-op. func (p *textParser) back() { p.backed = true } @@ -592,7 +578,11 @@ func (p *textParser) readStruct(sv reflect.Value, terminator string) error { props = oop.Prop nv := reflect.New(oop.Type.Elem()) dst = nv.Elem().Field(0) - sv.Field(oop.Field).Set(nv) + field := sv.Field(oop.Field) + if !field.IsNil() { + return p.errorf("field '%s' would overwrite already parsed oneof '%s'", name, sv.Type().Field(oop.Field).Name) + } + field.Set(nv) } if !dst.IsValid() { return p.errorf("unknown field name %q in %v", name, st) @@ -724,6 +714,9 @@ func (p *textParser) consumeExtName() (string, error) { if tok.err != nil { return "", p.errorf("unrecognized type_url or extension name: %s", tok.err) } + if p.done && tok.value != "]" { + return "", p.errorf("unclosed type_url or extension name") + } } return strings.Join(parts, ""), nil } @@ -792,12 +785,12 @@ func (p *textParser) readAny(v reflect.Value, props *Properties) error { fv.Set(reflect.Append(fv, reflect.New(at.Elem()).Elem())) return p.readAny(fv.Index(fv.Len()-1), props) case reflect.Bool: - // Either "true", "false", 1 or 0. + // true/1/t/True or false/f/0/False. switch tok.value { - case "true", "1": + case "true", "1", "t", "True": fv.SetBool(true) return nil - case "false", "0": + case "false", "0", "f", "False": fv.SetBool(false) return nil } @@ -879,13 +872,9 @@ func (p *textParser) readAny(v reflect.Value, props *Properties) error { // UnmarshalText returns *RequiredNotSetError. func UnmarshalText(s string, pb Message) error { if um, ok := pb.(encoding.TextUnmarshaler); ok { - err := um.UnmarshalText([]byte(s)) - return err + return um.UnmarshalText([]byte(s)) } pb.Reset() v := reflect.ValueOf(pb) - if pe := newTextParser(s).readStruct(v.Elem(), ""); pe != nil { - return pe - } - return nil + return newTextParser(s).readStruct(v.Elem(), "") } |