json-joy
Version:
Collection of libraries for building collaborative editing apps.
63 lines (62 loc) • 2.08 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.ClockTable = exports.ClockTableEntry = void 0;
const clock_1 = require("../../clock");
class ClockTableEntry {
constructor(index, id) {
this.index = index;
this.id = id;
}
}
exports.ClockTableEntry = ClockTableEntry;
class ClockTable {
constructor() {
this.bySid = new Map();
this.byIdx = [];
}
static from(clock) {
const table = new ClockTable();
table.push(new clock_1.Timestamp(clock.sid, clock.time - 1));
// biome-ignore lint: using .forEach() on Map is the fastest way to iterate
clock.peers.forEach((id) => table.push(id));
return table;
}
static decode(reader) {
const clockTable = new ClockTable();
const length = reader.vu57();
clockTable.push(new clock_1.Timestamp(reader.vu57(), reader.vu57()));
for (let i = 1; i < length; i++)
clockTable.push(new clock_1.Timestamp(reader.vu57(), reader.vu57()));
return clockTable;
}
parseField(field) {
const underscoreIndex = field.indexOf('_');
const relativeSid = Number.parseInt(field.slice(0, underscoreIndex), 36);
const time = Number.parseInt(field.slice(underscoreIndex + 1), 36);
const clock = this.byIdx[relativeSid];
return new clock_1.Timestamp(clock.sid, time);
}
push(id) {
const byIdx = this.byIdx;
const index = byIdx.length;
byIdx.push(id);
this.bySid.set(id.sid, new ClockTableEntry(index, id));
}
getBySid(sid) {
const entry = this.bySid.get(sid);
if (!entry)
throw new Error('CLOCK_NOT_FOUND');
return entry;
}
write(writer) {
const table = this.byIdx;
const length = table.length;
writer.vu57(length);
for (let i = 0; i < length; i++) {
const clock = table[i];
writer.vu57(clock.sid);
writer.vu57(clock.time);
}
}
}
exports.ClockTable = ClockTable;