|
| 1 | +package types |
| 2 | + |
| 3 | +import ( |
| 4 | + "fmt" |
| 5 | + "strings" |
| 6 | + |
| 7 | + "github.com/centrifuge/go-substrate-rpc-client/scale" |
| 8 | +) |
| 9 | + |
| 10 | +// Modelled after packages/types/src/Metadata/v11/toV12.ts |
| 11 | +type MetadataV12 struct { |
| 12 | + Modules []ModuleMetadataV12 |
| 13 | + Extrinsic ExtrinsicV11 |
| 14 | +} |
| 15 | + |
| 16 | +func (m *MetadataV12) Decode(decoder scale.Decoder) error { |
| 17 | + err := decoder.Decode(&m.Modules) |
| 18 | + if err != nil { |
| 19 | + return err |
| 20 | + } |
| 21 | + return decoder.Decode(&m.Extrinsic) |
| 22 | +} |
| 23 | + |
| 24 | +func (m MetadataV12) Encode(encoder scale.Encoder) error { |
| 25 | + err := encoder.Encode(m.Modules) |
| 26 | + if err != nil { |
| 27 | + return err |
| 28 | + } |
| 29 | + return encoder.Encode(m.Extrinsic) |
| 30 | +} |
| 31 | + |
| 32 | +func (m *MetadataV12) FindCallIndex(call string) (CallIndex, error) { |
| 33 | + s := strings.Split(call, ".") |
| 34 | + for _, mod := range m.Modules { |
| 35 | + if !mod.HasCalls { |
| 36 | + continue |
| 37 | + } |
| 38 | + if string(mod.Name) != s[0] { |
| 39 | + continue |
| 40 | + } |
| 41 | + for ci, f := range mod.Calls { |
| 42 | + if string(f.Name) == s[1] { |
| 43 | + return CallIndex{mod.Index, uint8(ci)}, nil |
| 44 | + } |
| 45 | + } |
| 46 | + return CallIndex{}, fmt.Errorf("method %v not found within module %v for call %v", s[1], mod.Name, call) |
| 47 | + } |
| 48 | + return CallIndex{}, fmt.Errorf("module %v not found in metadata for call %v", s[0], call) |
| 49 | +} |
| 50 | + |
| 51 | +func (m *MetadataV12) FindEventNamesForEventID(eventID EventID) (Text, Text, error) { |
| 52 | + for _, mod := range m.Modules { |
| 53 | + if !mod.HasEvents { |
| 54 | + continue |
| 55 | + } |
| 56 | + if mod.Index != eventID[0] { |
| 57 | + continue |
| 58 | + } |
| 59 | + if int(eventID[1]) >= len(mod.Events) { |
| 60 | + return "", "", fmt.Errorf("event index %v for module %v out of range", eventID[1], mod.Name) |
| 61 | + } |
| 62 | + return mod.Name, mod.Events[eventID[1]].Name, nil |
| 63 | + } |
| 64 | + return "", "", fmt.Errorf("module index %v out of range", eventID[0]) |
| 65 | +} |
| 66 | + |
| 67 | +func (m *MetadataV12) FindStorageEntryMetadata(module string, fn string) (StorageEntryMetadata, error) { |
| 68 | + for _, mod := range m.Modules { |
| 69 | + if !mod.HasStorage { |
| 70 | + continue |
| 71 | + } |
| 72 | + if string(mod.Storage.Prefix) != module { |
| 73 | + continue |
| 74 | + } |
| 75 | + for _, s := range mod.Storage.Items { |
| 76 | + if string(s.Name) != fn { |
| 77 | + continue |
| 78 | + } |
| 79 | + return s, nil |
| 80 | + } |
| 81 | + return nil, fmt.Errorf("storage %v not found within module %v", fn, module) |
| 82 | + } |
| 83 | + return nil, fmt.Errorf("module %v not found in metadata", module) |
| 84 | +} |
| 85 | + |
| 86 | +func (m *MetadataV12) ExistsModuleMetadata(module string) bool { |
| 87 | + for _, mod := range m.Modules { |
| 88 | + if string(mod.Name) == module { |
| 89 | + return true |
| 90 | + } |
| 91 | + } |
| 92 | + return false |
| 93 | +} |
| 94 | + |
| 95 | +type ModuleMetadataV12 struct { |
| 96 | + Name Text |
| 97 | + HasStorage bool |
| 98 | + Storage StorageMetadataV10 |
| 99 | + HasCalls bool |
| 100 | + Calls []FunctionMetadataV4 |
| 101 | + HasEvents bool |
| 102 | + Events []EventMetadataV4 |
| 103 | + Constants []ModuleConstantMetadataV6 |
| 104 | + Errors []ErrorMetadataV8 |
| 105 | + Index uint8 |
| 106 | +} |
| 107 | + |
| 108 | +func (m *ModuleMetadataV12) Decode(decoder scale.Decoder) error { |
| 109 | + err := decoder.Decode(&m.Name) |
| 110 | + if err != nil { |
| 111 | + return err |
| 112 | + } |
| 113 | + |
| 114 | + err = decoder.Decode(&m.HasStorage) |
| 115 | + if err != nil { |
| 116 | + return err |
| 117 | + } |
| 118 | + |
| 119 | + if m.HasStorage { |
| 120 | + err = decoder.Decode(&m.Storage) |
| 121 | + if err != nil { |
| 122 | + return err |
| 123 | + } |
| 124 | + } |
| 125 | + |
| 126 | + err = decoder.Decode(&m.HasCalls) |
| 127 | + if err != nil { |
| 128 | + return err |
| 129 | + } |
| 130 | + |
| 131 | + if m.HasCalls { |
| 132 | + err = decoder.Decode(&m.Calls) |
| 133 | + if err != nil { |
| 134 | + return err |
| 135 | + } |
| 136 | + } |
| 137 | + |
| 138 | + err = decoder.Decode(&m.HasEvents) |
| 139 | + if err != nil { |
| 140 | + return err |
| 141 | + } |
| 142 | + |
| 143 | + if m.HasEvents { |
| 144 | + err = decoder.Decode(&m.Events) |
| 145 | + if err != nil { |
| 146 | + return err |
| 147 | + } |
| 148 | + } |
| 149 | + |
| 150 | + err = decoder.Decode(&m.Constants) |
| 151 | + if err != nil { |
| 152 | + return err |
| 153 | + } |
| 154 | + |
| 155 | + err = decoder.Decode(&m.Errors) |
| 156 | + if err != nil { |
| 157 | + return err |
| 158 | + } |
| 159 | + |
| 160 | + return decoder.Decode(&m.Index) |
| 161 | +} |
| 162 | + |
| 163 | +func (m ModuleMetadataV12) Encode(encoder scale.Encoder) error { |
| 164 | + err := encoder.Encode(m.Name) |
| 165 | + if err != nil { |
| 166 | + return err |
| 167 | + } |
| 168 | + |
| 169 | + err = encoder.Encode(m.HasStorage) |
| 170 | + if err != nil { |
| 171 | + return err |
| 172 | + } |
| 173 | + |
| 174 | + if m.HasStorage { |
| 175 | + err = encoder.Encode(m.Storage) |
| 176 | + if err != nil { |
| 177 | + return err |
| 178 | + } |
| 179 | + } |
| 180 | + |
| 181 | + err = encoder.Encode(m.HasCalls) |
| 182 | + if err != nil { |
| 183 | + return err |
| 184 | + } |
| 185 | + |
| 186 | + if m.HasCalls { |
| 187 | + err = encoder.Encode(m.Calls) |
| 188 | + if err != nil { |
| 189 | + return err |
| 190 | + } |
| 191 | + } |
| 192 | + |
| 193 | + err = encoder.Encode(m.HasEvents) |
| 194 | + if err != nil { |
| 195 | + return err |
| 196 | + } |
| 197 | + |
| 198 | + if m.HasEvents { |
| 199 | + err = encoder.Encode(m.Events) |
| 200 | + if err != nil { |
| 201 | + return err |
| 202 | + } |
| 203 | + } |
| 204 | + |
| 205 | + err = encoder.Encode(m.Constants) |
| 206 | + if err != nil { |
| 207 | + return err |
| 208 | + } |
| 209 | + |
| 210 | + err = encoder.Encode(m.Errors) |
| 211 | + if err != nil { |
| 212 | + return err |
| 213 | + } |
| 214 | + |
| 215 | + return encoder.Encode(m.Index) |
| 216 | +} |
0 commit comments