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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 | 18x 18x 18x 18x 18x 2547x 2547x 2547x 329x 2218x 2547x 2547x 2547x 2547x 290247x 22505x 267742x 267742x 267742x 109518x 30762x 1364x 35393x 6x 25111x 4190x 12692x 30762x 30762x 30762x 8305x 8305x 2x 30762x 30762x 30762x 1364x 1364x 1364x 1364x 1364x 35393x 35393x 35393x 35393x 35393x 35393x 92272x 92272x 92272x 35393x 35393x 6x 6x 6x 6x 6x 6x 18x 18x 16x 16x 6x 6x 25111x 25111x 25111x 25111x 25111x 25111x 117168x 117168x 117168x 117168x 60895x 25111x 25111x 4190x 4190x 4190x 4190x 4190x 4190x 53203x 53203x 53203x 53203x 14309x 4190x 4190x 12692x 12692x 12692x 12692x 12692x 12692x 10356x 10356x 10356x 10356x 13363x 9795x 12692x 12692x | import * as nodes from '../../../nodes'; import {ClockDecoder} from '../../../../json-crdt-patch/codec/clock/ClockDecoder'; import {type ITimestampStruct, Timestamp} from '../../../../json-crdt-patch/clock'; import {Model, UNDEFINED} from '../../../model/Model'; import {JsonCrdtDataType, SESSION} from '../../../../json-crdt-patch/constants'; import type * as t from './types'; export class Decoder { protected time?: number; protected clockDecoder?: ClockDecoder; public decode(doc: t.JsonCrdtCompactDocument): Model { const [time, root] = doc; const isServerTime = typeof time === 'number'; if (isServerTime) { this.time = time; } else { this.clockDecoder = ClockDecoder.fromArr(time as number[]); } const model = isServerTime ? Model.withServerClock(void 0, time as number) : Model.create(void 0, this.clockDecoder!.clock); const val = root ? this.decNode(model, root) : UNDEFINED; model.root = new nodes.RootNode(model, val.id); return model; } protected ts(x: t.JsonCrdtCompactTimestamp): ITimestampStruct { if (typeof x === 'number') { return new Timestamp(SESSION.SERVER, this.time! - x); } else { const [sid, time] = x as [number, number]; if (sid < 0) { return this.clockDecoder!.decodeId(-sid, time); } else E{ return new Timestamp(sid, time); } } } protected decNode(model: Model, node: t.JsonCrdtCompactNode): nodes.JsonNode { switch (node[0]) { case JsonCrdtDataType.con: return this.decCon(model, node); case JsonCrdtDataType.val: return this.decVal(model, node); case JsonCrdtDataType.obj: return this.decObj(model, node); case JsonCrdtDataType.vec: return this.decVec(model, node); case JsonCrdtDataType.str: return this.decStr(model, node); case JsonCrdtDataType.bin: return this.decBin(model, node); case JsonCrdtDataType.arr: return this.decArr(model, node); } throw new Error('UNKNOWN_NODE'); } protected decCon(doc: Model, node: t.JsonCrdtCompactCon): nodes.ConNode { const id = this.ts(node[1]); let data: unknown | undefined | Timestamp = node[2]; if (node.length > 3) { const specialData = node[3] as unknown; if (!specialData) data = undefined; else data = this.ts(specialData as t.JsonCrdtCompactTimestamp); } const obj = new nodes.ConNode(id, data); doc.index.set(id, obj); return obj; } protected decVal(doc: Model, node: t.JsonCrdtCompactVal): nodes.ValNode { const id = this.ts(node[1]); const child = this.decNode(doc, node[2]); const obj = new nodes.ValNode(doc, id, child.id); doc.index.set(id, obj); return obj; } protected decObj(model: Model, node: t.JsonCrdtCompactObj): nodes.ObjNode { const id = this.ts(node[1]); const obj = new nodes.ObjNode(model, id); const map = node[2] as t.JsonCrdtCompactObj[2]; const keys = Object.keys(map); const length = keys.length; for (let i = 0; i < length; i++) { const key = keys[i]; const val = this.decNode(model, map[key]); obj.put(key, val.id); } model.index.set(id, obj); return obj; } protected decVec(model: Model, node: t.JsonCrdtCompactVec): nodes.VecNode { const id = this.ts(node[1]); const obj = new nodes.VecNode(model, id); const map = node[2] as t.JsonCrdtCompactVec[2]; const elements = obj.elements; const length = map.length; for (let i = 0; i < length; i++) { const item = map[i]; if (!item) elements.push(undefined); else { const child = this.decNode(model, item); elements.push(child.id); } } model.index.set(id, obj); return obj; } protected decStr(doc: Model, node: t.JsonCrdtCompactStr): nodes.StrNode { const id = this.ts(node[1]); const obj = new nodes.StrNode(id); const chunks = node[2] as t.JsonCrdtCompactStr[2]; const size = chunks.length; let i = 0; obj.ingest(size, () => { const chunk = chunks[i++]; const chunkId = this.ts(chunk[0]); const content = chunk[1]; if (typeof content === 'number') return new nodes.StrChunk(chunkId, content, ''); return new nodes.StrChunk(chunkId, (content as string).length, content as string); }); doc.index.set(id, obj); return obj; } protected decBin(doc: Model, node: t.JsonCrdtCompactBin): nodes.BinNode { const id = this.ts(node[1]); const obj = new nodes.BinNode(id); const chunks = node[2] as t.JsonCrdtCompactBin[2]; const size = chunks.length; let i = 0; obj.ingest(size, () => { const chunk = chunks[i++]; const chunkId = this.ts(chunk[0]); const content = chunk[1]; if (typeof content === 'number') return new nodes.BinChunk(chunkId, content, undefined); return new nodes.BinChunk(chunkId, content.length, content); }); doc.index.set(id, obj); return obj; } protected decArr(doc: Model, node: t.JsonCrdtCompactArr): nodes.ArrNode { const id = this.ts(node[1]); const obj = new nodes.ArrNode(doc, id); const chunks = node[2] as t.JsonCrdtCompactArr[2]; const size = chunks.length; let i = 0; obj.ingest(size, () => { const chunk = chunks[i++]; const chunkId = this.ts(chunk[0]); const content = chunk[1]; if (typeof content === 'number') return new nodes.ArrChunk(chunkId, content, undefined); const ids = (content as t.JsonCrdtCompactNode[]).map((c) => this.decNode(doc, c).id); return new nodes.ArrChunk(chunkId, content.length, ids); }); doc.index.set(id, obj); return obj; } } |