| 110 | } |
| 111 | |
| 112 | func (is *indexSection) Finalize(ver version.Version) error { |
| 113 | if is.bytes != nil { |
| 114 | panic("indexSection must be Finalize()-d only once.") |
| 115 | } |
| 116 | |
| 117 | var b bytes.Buffer |
| 118 | enc := cbor.NewEncoder(&b) |
| 119 | |
| 120 | if ver.SupportsVariants() { |
| 121 | // CDDL: |
| 122 | // index = {* whatwg-url => [ variants-value, +location-in-responses ] } |
| 123 | // variants-value = bstr |
| 124 | // location-in-responses = (offset: uint, length: uint) |
| 125 | m := make(map[string][]*indexEntry) |
| 126 | for _, e := range is.es { |
| 127 | url := e.URL.String() |
| 128 | m[url] = append(m[url], e) |
| 129 | } |
| 130 | |
| 131 | mes := []*cbor.MapEntryEncoder{} |
| 132 | for url, es := range m { |
| 133 | var variantsValue []byte |
| 134 | if len(es) > 1 { |
| 135 | variantsValue = []byte(es[0].Variants) |
| 136 | var err error |
| 137 | es, err = entriesInPossibleKeyOrder(es) |
| 138 | if err != nil { |
| 139 | return fmt.Errorf("bundle: cannot construct index entry for %s: %v", url, err) |
| 140 | } |
| 141 | } |
| 142 | |
| 143 | me := cbor.GenerateMapEntry(func(keyE *cbor.Encoder, valueE *cbor.Encoder) { |
| 144 | if err := keyE.EncodeTextString(url); err != nil { |
| 145 | panic(err) |
| 146 | } |
| 147 | |
| 148 | if err := valueE.EncodeArrayHeader(1 + len(es)*2); err != nil { |
| 149 | panic(err) |
| 150 | } |
| 151 | if err := valueE.EncodeByteString(variantsValue); err != nil { |
| 152 | panic(err) |
| 153 | } |
| 154 | for _, e := range es { |
| 155 | if err := valueE.EncodeUint(e.Offset); err != nil { |
| 156 | panic(err) |
| 157 | } |
| 158 | if err := valueE.EncodeUint(e.Length); err != nil { |
| 159 | panic(err) |
| 160 | } |
| 161 | } |
| 162 | }) |
| 163 | mes = append(mes, me) |
| 164 | } |
| 165 | if err := enc.EncodeMap(mes); err != nil { |
| 166 | return err |
| 167 | } |
| 168 | } else { |
| 169 | // CDDL: |