@iden3/js-jsonld-merklization
Version:
json ld merklization library
39 lines (38 loc) • 1.22 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.QuadArrKey = void 0;
const utils_1 = require("./utils");
const types_1 = require("./types/types");
class QuadArrKey {
constructor(q) {
this.graph = (0, utils_1.getGraphName)(q);
const s = q.subject;
switch (s.termType) {
case types_1.NodeType.IRI:
this.subject = { tp: types_1.NodeType.IRI, val: s.value };
break;
case types_1.NodeType.BlankNode:
this.subject = { tp: types_1.NodeType.BlankNode, val: s.value };
break;
default:
throw new Error('invalid subject type');
}
if (q.predicate.termType !== types_1.NodeType.IRI) {
throw new Error('invalid predicate type');
}
this.predicate = q.predicate.value;
}
toString() {
return JSON.stringify(this);
}
}
exports.QuadArrKey = QuadArrKey;
QuadArrKey.countEntries = (nodes) => {
const res = new Map();
for (const q of nodes) {
const key = new QuadArrKey(q);
let c = res.get(key.toString()) ?? 0;
res.set(key.toString(), ++c);
}
return res;
};