@atproto/repo/dist/storage/readable-blockstore.js

atproto repo and MST implementation

"use strict";
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.ReadableBlockstore = void 0;
const error_1 = require("../error");
const parse = __importStar(require("../parse"));
const util_1 = require("../util");
class ReadableBlockstore {
    async attemptRead(cid, def) {
        const bytes = await this.getBytes(cid);
        if (!bytes)
            return null;
        return parse.parseObjByDef(bytes, cid, def);
    }
    async readObjAndBytes(cid, def) {
        const read = await this.attemptRead(cid, def);
        if (!read) {
            throw new error_1.MissingBlockError(cid, def.name);
        }
        return read;
    }
    async readObj(cid, def) {
        const obj = await this.readObjAndBytes(cid, def);
        return obj.obj;
    }
    async attemptReadRecord(cid) {
        try {
            return await this.readRecord(cid);
        }
        catch {
            return null;
        }
    }
    async readRecord(cid) {
        const bytes = await this.getBytes(cid);
        if (!bytes) {
            throw new error_1.MissingBlockError(cid);
        }
        return (0, util_1.cborToLexRecord)(bytes);
    }
}
exports.ReadableBlockstore = ReadableBlockstore;
exports.default = ReadableBlockstore;
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