@atproto/common-web
Version:
Shared web-platform-friendly code for atproto libraries
129 lines • 4.42 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
};
return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.ipldEquals = exports.ipldToJson = exports.jsonToIpld = void 0;
const cid_1 = require("multiformats/cid");
const ui8 = __importStar(require("uint8arrays"));
// @NOTE avoiding use of check.is() here only because it makes
// these implementations slow, and they often live in hot paths.
const jsonToIpld = (val) => {
// walk arrays
if (Array.isArray(val)) {
return val.map((item) => (0, exports.jsonToIpld)(item));
}
// objects
if (val && typeof val === 'object') {
// check for dag json values
if (typeof val['$link'] === 'string' && Object.keys(val).length === 1) {
return cid_1.CID.parse(val['$link']);
}
if (typeof val['$bytes'] === 'string' && Object.keys(val).length === 1) {
return ui8.fromString(val['$bytes'], 'base64');
}
// walk plain objects
const toReturn = {};
for (const key of Object.keys(val)) {
toReturn[key] = (0, exports.jsonToIpld)(val[key]);
}
return toReturn;
}
// pass through
return val;
};
exports.jsonToIpld = jsonToIpld;
const ipldToJson = (val) => {
// walk arrays
if (Array.isArray(val)) {
return val.map((item) => (0, exports.ipldToJson)(item));
}
// objects
if (val && typeof val === 'object') {
// convert bytes
if (val instanceof Uint8Array) {
return {
$bytes: ui8.toString(val, 'base64'),
};
}
// convert cids
if (cid_1.CID.asCID(val)) {
return {
$link: val.toString(),
};
}
// walk plain objects
const toReturn = {};
for (const key of Object.keys(val)) {
toReturn[key] = (0, exports.ipldToJson)(val[key]);
}
return toReturn;
}
// pass through
return val;
};
exports.ipldToJson = ipldToJson;
const ipldEquals = (a, b) => {
// walk arrays
if (Array.isArray(a) && Array.isArray(b)) {
if (a.length !== b.length)
return false;
for (let i = 0; i < a.length; i++) {
if (!(0, exports.ipldEquals)(a[i], b[i]))
return false;
}
return true;
}
// objects
if (a && b && typeof a === 'object' && typeof b === 'object') {
// check bytes
if (a instanceof Uint8Array && b instanceof Uint8Array) {
return ui8.equals(a, b);
}
// check cids
if (cid_1.CID.asCID(a) && cid_1.CID.asCID(b)) {
return cid_1.CID.asCID(a)?.equals(cid_1.CID.asCID(b));
}
// walk plain objects
if (Object.keys(a).length !== Object.keys(b).length)
return false;
for (const key of Object.keys(a)) {
if (!(0, exports.ipldEquals)(a[key], b[key]))
return false;
}
return true;
}
return a === b;
};
exports.ipldEquals = ipldEquals;
//# sourceMappingURL=ipld.js.map