UNPKG

@c4tplatform/caminojs

Version:
201 lines 22.8 kB
"use strict"; var __importDefault = (this && this.__importDefault) || function (mod) { return (mod && mod.__esModule) ? mod : { "default": mod }; }; Object.defineProperty(exports, "__esModule", { value: true }); exports.Vertex = void 0; /** * @packageDocumentation * @module API-AVM-Vertex */ const buffer_1 = require("buffer/"); const bintools_1 = __importDefault(require("../../utils/bintools")); const constants_1 = require("./constants"); const tx_1 = require("./tx"); const utils_1 = require("../../utils"); const bn_js_1 = __importDefault(require("bn.js")); /** * @ignore */ const bintools = bintools_1.default.getInstance(); /** * Class representing a Vertex */ class Vertex extends utils_1.Serializable { /** * Returns the NetworkID as a number */ getNetworkID() { return this.networkID; } /** * Returns the BlockchainID as a CB58 string */ getBlockchainID() { return bintools.cb58Encode(this.blockchainID); } /** * Returns the Height as a {@link https://github.com/indutny/bn.js/|BN}. */ getHeight() { return this.height; } /** * Returns the Epoch as a number. */ getEpoch() { return this.epoch; } /** * @returns An array of Buffers */ getParentIDs() { return this.parentIDs; } /** * Returns array of UnsignedTxs. */ getTxs() { return this.txs; } /** * @returns An array of Buffers */ getRestrictions() { return this.restrictions; } /** * Set the codecID * * @param codecID The codecID to set */ setCodecID(codecID) { if (codecID !== 0 && codecID !== 1) { /* istanbul ignore next */ throw new utils_1.CodecIdError("Error - Vertex.setCodecID: invalid codecID. Valid codecIDs are 0 and 1."); } this._codecID = codecID; this._typeID = this._codecID === 0 ? constants_1.AVMConstants.VERTEX : constants_1.AVMConstants.VERTEX_CODECONE; } /** * Takes a {@link https://github.com/feross/buffer|Buffer} containing an [[Vertex]], parses it, populates the class, and returns the length of the Vertex in bytes. * * @param bytes A {@link https://github.com/feross/buffer|Buffer} containing a raw [[Vertex]] * * @returns The length of the raw [[Vertex]] * * @remarks assume not-checksummed */ fromBuffer(bytes, offset = 0) { offset += 2; this.blockchainID = bintools.copyFrom(bytes, offset, offset + 32); offset += 32; const h = bintools.copyFrom(bytes, offset, offset + 8); this.height = bintools.fromBufferToBN(h); offset += 8; const e = bintools.copyFrom(bytes, offset, offset + 4); this.epoch = e.readInt32BE(0); offset += 4; const nPIDs = bintools.copyFrom(bytes, offset, offset + 4); this.numParentIDs = nPIDs.readInt32BE(0); offset += 4; for (let i = 0; i < this.numParentIDs; i++) { const parentID = bintools.copyFrom(bytes, offset, offset + 32); offset += 32; this.parentIDs.push(parentID); } const nTxs = bintools.copyFrom(bytes, offset, offset + 4); this.numTxs = nTxs.readInt32BE(0); // account for tx-size bytes offset += 8; for (let i = 0; i < this.numTxs; i++) { const tx = new tx_1.Tx(); offset += tx.fromBuffer(bintools.copyFrom(bytes, offset)); this.txs.push(tx); } if (bytes.byteLength > offset && bytes.byteLength - offset > 4) { const nRs = bintools.copyFrom(bytes, offset, offset + 4); this.numRestrictions = nRs.readInt32BE(0); offset += 4; for (let i = 0; i < this.numRestrictions; i++) { const tx = bintools.copyFrom(bytes, offset, offset + 32); offset += 32; this.restrictions.push(tx); } } return offset; } /** * Returns a {@link https://github.com/feross/buffer|Buffer} representation of the [[Vertex]]. */ toBuffer() { const codec = this.getCodecID(); const codecBuf = buffer_1.Buffer.alloc(2); codecBuf.writeUInt16BE(codec, 0); const epochBuf = buffer_1.Buffer.alloc(4); epochBuf.writeInt32BE(this.epoch, 0); const numParentIDsBuf = buffer_1.Buffer.alloc(4); numParentIDsBuf.writeInt32BE(this.numParentIDs, 0); let barr = [ codecBuf, this.blockchainID, bintools.fromBNToBuffer(this.height, 8), epochBuf, numParentIDsBuf ]; this.parentIDs.forEach((parentID) => { barr.push(parentID); }); const txs = this.getTxs(); const numTxs = buffer_1.Buffer.alloc(4); numTxs.writeUInt32BE(txs.length, 0); barr.push(numTxs); let size = 0; const txSize = buffer_1.Buffer.alloc(4); txs.forEach((tx) => { const b = tx.toBuffer(); size += b.byteLength; }); txSize.writeUInt32BE(size, 0); barr.push(txSize); txs.forEach((tx) => { const b = tx.toBuffer(); barr.push(b); }); return buffer_1.Buffer.concat(barr); } clone() { let vertex = new Vertex(); vertex.fromBuffer(this.toBuffer()); return vertex; } /** * Class representing a Vertex which is a container for AVM Transactions. * * @param networkID Optional, [[DefaultNetworkID]] * @param blockchainID Optional, default "2oYMBNV4eNHyqk2fjjV5nVQLDbtmNJzq5s3qs3Lo6ftnC6FByM" * @param height Optional, default new BN(0) * @param epoch Optional, default new BN(0) * @param parentIDs Optional, default [] * @param txs Optional, default [] * @param restrictions Optional, default [] */ constructor(networkID = utils_1.DefaultNetworkID, blockchainID = "2oYMBNV4eNHyqk2fjjV5nVQLDbtmNJzq5s3qs3Lo6ftnC6FByM", height = new bn_js_1.default(0), epoch = 0, parentIDs = [], txs = [], restrictions = []) { super(); this._typeName = "Vertex"; this._codecID = constants_1.AVMConstants.LATESTCODEC; this.networkID = networkID; this.blockchainID = bintools.cb58Decode(blockchainID); this.height = height; this.epoch = epoch; this.parentIDs = parentIDs; this.numParentIDs = parentIDs.length; this.txs = txs; this.numTxs = txs.length; this.restrictions = restrictions; this.numRestrictions = restrictions.length; } } exports.Vertex = Vertex; //# 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* @packageDocumentation\n * @module API-AVM-Vertex\n */\nimport { Buffer } from \"buffer/\"\nimport BinTools from \"../../utils/bintools\"\nimport { AVMConstants } from \"./constants\"\nimport { Tx } from \"./tx\"\nimport { Serializable, CodecIdError, DefaultNetworkID } from \"../../utils\"\nimport BN from \"bn.js\"\n\n/**\n * @ignore\n */\nconst bintools: BinTools = BinTools.getInstance()\n\n/**\n * Class representing a Vertex\n */\nexport class Vertex extends Serializable {\n  protected _typeName = \"Vertex\"\n  protected _codecID = AVMConstants.LATESTCODEC\n  // serialize is inherited\n  // deserialize is inherited\n  protected networkID: number\n  protected blockchainID: Buffer\n  protected height: BN\n  protected epoch: number\n  protected parentIDs: Buffer[]\n  protected numParentIDs: number\n  protected txs: Tx[]\n  protected numTxs: number\n  protected restrictions: Buffer[]\n  protected numRestrictions: number\n\n  /**\n   * Returns the NetworkID as a number\n   */\n  getNetworkID(): number {\n    return this.networkID\n  }\n  /**\n   * Returns the BlockchainID as a CB58 string\n   */\n  getBlockchainID(): string {\n    return bintools.cb58Encode(this.blockchainID)\n  }\n\n  /**\n   * Returns the Height as a {@link https://github.com/indutny/bn.js/|BN}.\n   */\n  getHeight(): BN {\n    return this.height\n  }\n\n  /**\n   * Returns the Epoch as a number.\n   */\n  getEpoch(): number {\n    return this.epoch\n  }\n\n  /**\n   * @returns An array of Buffers\n   */\n  getParentIDs(): Buffer[] {\n    return this.parentIDs\n  }\n\n  /**\n   * Returns array of UnsignedTxs.\n   */\n  getTxs(): Tx[] {\n    return this.txs\n  }\n\n  /**\n   * @returns An array of Buffers\n   */\n  getRestrictions(): Buffer[] {\n    return this.restrictions\n  }\n\n  /**\n   * Set the codecID\n   *\n   * @param codecID The codecID to set\n   */\n  setCodecID(codecID: number): void {\n    if (codecID !== 0 && codecID !== 1) {\n      /* istanbul ignore next */\n      throw new CodecIdError(\n        \"Error - Vertex.setCodecID: invalid codecID. Valid codecIDs are 0 and 1.\"\n      )\n    }\n    this._codecID = codecID\n    this._typeID =\n      this._codecID === 0 ? AVMConstants.VERTEX : AVMConstants.VERTEX_CODECONE\n  }\n\n  /**\n   * Takes a {@link https://github.com/feross/buffer|Buffer} containing an [[Vertex]], parses it, populates the class, and returns the length of the Vertex in bytes.\n   *\n   * @param bytes A {@link https://github.com/feross/buffer|Buffer} containing a raw [[Vertex]]\n   *\n   * @returns The length of the raw [[Vertex]]\n   *\n   * @remarks assume not-checksummed\n   */\n  fromBuffer(bytes: Buffer, offset: number = 0): number {\n    offset += 2\n    this.blockchainID = bintools.copyFrom(bytes, offset, offset + 32)\n    offset += 32\n\n    const h: Buffer = bintools.copyFrom(bytes, offset, offset + 8)\n    this.height = bintools.fromBufferToBN(h)\n    offset += 8\n\n    const e: Buffer = bintools.copyFrom(bytes, offset, offset + 4)\n    this.epoch = e.readInt32BE(0)\n    offset += 4\n\n    const nPIDs: Buffer = bintools.copyFrom(bytes, offset, offset + 4)\n    this.numParentIDs = nPIDs.readInt32BE(0)\n    offset += 4\n\n    for (let i: number = 0; i < this.numParentIDs; i++) {\n      const parentID: Buffer = bintools.copyFrom(bytes, offset, offset + 32)\n      offset += 32\n      this.parentIDs.push(parentID)\n    }\n\n    const nTxs: Buffer = bintools.copyFrom(bytes, offset, offset + 4)\n    this.numTxs = nTxs.readInt32BE(0)\n    // account for tx-size bytes\n    offset += 8\n\n    for (let i: number = 0; i < this.numTxs; i++) {\n      const tx: Tx = new Tx()\n      offset += tx.fromBuffer(bintools.copyFrom(bytes, offset))\n      this.txs.push(tx)\n    }\n\n    if (bytes.byteLength > offset && bytes.byteLength - offset > 4) {\n      const nRs: Buffer = bintools.copyFrom(bytes, offset, offset + 4)\n      this.numRestrictions = nRs.readInt32BE(0)\n      offset += 4\n      for (let i: number = 0; i < this.numRestrictions; i++) {\n        const tx: Buffer = bintools.copyFrom(bytes, offset, offset + 32)\n        offset += 32\n        this.restrictions.push(tx)\n      }\n    }\n\n    return offset\n  }\n\n  /**\n   * Returns a {@link https://github.com/feross/buffer|Buffer} representation of the [[Vertex]].\n   */\n  toBuffer(): Buffer {\n    const codec: number = this.getCodecID()\n    const codecBuf: Buffer = Buffer.alloc(2)\n    codecBuf.writeUInt16BE(codec, 0)\n\n    const epochBuf: Buffer = Buffer.alloc(4)\n    epochBuf.writeInt32BE(this.epoch, 0)\n\n    const numParentIDsBuf: Buffer = Buffer.alloc(4)\n    numParentIDsBuf.writeInt32BE(this.numParentIDs, 0)\n    let barr: Buffer[] = [\n      codecBuf,\n      this.blockchainID,\n      bintools.fromBNToBuffer(this.height, 8),\n      epochBuf,\n      numParentIDsBuf\n    ]\n    this.parentIDs.forEach((parentID: Buffer): void => {\n      barr.push(parentID)\n    })\n\n    const txs: Tx[] = this.getTxs()\n    const numTxs: Buffer = Buffer.alloc(4)\n    numTxs.writeUInt32BE(txs.length, 0)\n    barr.push(numTxs)\n\n    let size: number = 0\n    const txSize: Buffer = Buffer.alloc(4)\n    txs.forEach((tx: Tx): void => {\n      const b: Buffer = tx.toBuffer()\n      size += b.byteLength\n    })\n    txSize.writeUInt32BE(size, 0)\n    barr.push(txSize)\n\n    txs.forEach((tx: Tx): void => {\n      const b: Buffer = tx.toBuffer()\n      barr.push(b)\n    })\n\n    return Buffer.concat(barr)\n  }\n\n  clone(): this {\n    let vertex: Vertex = new Vertex()\n    vertex.fromBuffer(this.toBuffer())\n    return vertex as this\n  }\n  /**\n   * Class representing a Vertex which is a container for AVM Transactions.\n   *\n   * @param networkID Optional, [[DefaultNetworkID]]\n   * @param blockchainID Optional, default \"2oYMBNV4eNHyqk2fjjV5nVQLDbtmNJzq5s3qs3Lo6ftnC6FByM\"\n   * @param height Optional, default new BN(0)\n   * @param epoch Optional, default new BN(0)\n   * @param parentIDs Optional, default []\n   * @param txs Optional, default []\n   * @param restrictions Optional, default []\n   */\n  constructor(\n    networkID: number = DefaultNetworkID,\n    blockchainID: string = \"2oYMBNV4eNHyqk2fjjV5nVQLDbtmNJzq5s3qs3Lo6ftnC6FByM\",\n    height: BN = new BN(0),\n    epoch: number = 0,\n    parentIDs: Buffer[] = [],\n    txs: Tx[] = [],\n    restrictions: Buffer[] = []\n  ) {\n    super()\n    this.networkID = networkID\n    this.blockchainID = bintools.cb58Decode(blockchainID)\n    this.height = height\n    this.epoch = epoch\n    this.parentIDs = parentIDs\n    this.numParentIDs = parentIDs.length\n    this.txs = txs\n    this.numTxs = txs.length\n    this.restrictions = restrictions\n    this.numRestrictions = restrictions.length\n  }\n}\n"]}