Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 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 | 5x 5x 5x 5x 287x 287x 404x 404x 404x 404x 404x 141x 141x 263x 404x 33891x 11230x 404x 404x 404x 22286x 22286x 22286x 22286x 22286x 22286x 22286x 4694x 422x 3x 7245x 5664x 443x 3815x 4694x 7245x 7245x 17641x 17641x 17641x 7245x 3x 3x 3x 9x 9x 1x 1x 8x 3x 5664x 5664x 7925x 7925x 7925x 5664x 443x 443x 443x 443x 1019x 1019x 1019x 881x 881x 443x 443x 443x 881x 881x 881x 443x 3815x 3815x 2660x 2660x 3815x 2660x 2660x 2660x 42x 2618x 3812x 2618x | import {CborDecoderBase} from '@jsonjoy.com/json-pack/lib/cbor/CborDecoderBase';
import {CrdtReader} from '../../../../json-crdt-patch/util/binary/CrdtReader';
import {CRDT_MAJOR} from './constants';
export class ViewDecoder extends CborDecoderBase<CrdtReader> {
protected time: number = -1;
constructor() {
super(new CrdtReader());
}
public decode(data: Uint8Array): unknown {
const reader = this.reader;
this.time = -1;
reader.reset(data);
const isServerTime = reader.peak() & 0b10000000;
if (isServerTime) {
reader.x++;
this.time = reader.vu57();
} else {
reader.x += 4;
}
return this.cRoot();
}
protected ts(): any {
if (this.time < 0) this.reader.idSkip();
else this.reader.vu57Skip();
}
protected cRoot(): unknown {
const reader = this.reader;
const peek = reader.uint8[reader.x];
return !peek ? undefined : this.cNode();
}
protected cNode(): unknown {
const reader = this.reader;
this.ts();
const octet = reader.u8();
const major = octet >> 5;
const minor = octet & 0b11111;
const length = minor < 0b11111 ? minor : reader.vu57();
switch (major) {
case CRDT_MAJOR.CON:
return this.cCon(length);
case CRDT_MAJOR.VAL:
return this.cNode();
case CRDT_MAJOR.VEC:
return this.cVec(length);
case CRDT_MAJOR.OBJ:
return this.cObj(length);
case CRDT_MAJOR.STR:
return this.cStr(length);
case CRDT_MAJOR.BIN:
return this.cBin(length);
case CRDT_MAJOR.ARR:
return this.cArr(length);
}
return undefined;
}
protected cCon(length: number): unknown {
return !length ? this.val() : (this.ts(), null);
}
protected cObj(length: number): Record<string, unknown> {
const obj: Record<string, unknown> = {};
for (let i = 0; i < length; i++) {
const key: string = this.key();
const value = this.cNode();
if (value !== undefined) obj[key] = value;
}
return obj;
}
protected cVec(length: number): unknown[] {
const reader = this.reader;
const obj: unknown[] = [];
for (let i = 0; i < length; i++) {
const octet = reader.peak();
if (!octet) {
reader.x++;
obj.push(undefined);
} else obj.push(this.cNode());
}
return obj;
}
protected cStr(length: number): string {
let str = '';
for (let i = 0; i < length; i++) {
this.ts();
const val = this.val();
if (typeof val === 'string') str += val;
}
return str;
}
protected cBin(length: number): Uint8Array {
const reader = this.reader;
const buffers: Uint8Array[] = [];
let totalLength = 0;
for (let i = 0; i < length; i++) {
this.ts();
const [deleted, length] = reader.b1vu56();
if (deleted) continue;
buffers.push(reader.buf(length));
totalLength += length;
}
const res = new Uint8Array(totalLength);
let offset = 0;
for (let i = 0; i < buffers.length; i++) {
const byteLength = buffers[i].length;
res.set(buffers[i], offset);
offset += byteLength;
}
return res;
}
protected cArr(length: number): unknown[] {
const arr: unknown[] = [];
for (let i = 0; i < length; i++) {
const values = this.cArrChunk();
if (values && values.length) arr.push(...values);
}
return arr;
}
protected cArrChunk(): unknown[] | undefined {
this.ts();
const [deleted, length] = this.reader.b1vu56();
if (deleted) {
return undefined;
} else {
const values: unknown[] = [];
for (let i = 0; i < length; i++) values.push(this.cNode());
return values;
}
}
}
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