wallet: classify.

lib/blockchain/chaindb.js

@@ -908,7 +908,7 @@ class ChainDB {
     return this.db.values({
       gte: layout.e(encoding.ZERO_HASH),
       lte: layout.e(encoding.MAX_HASH),
-      parse: value => ChainEntry.fromRaw(value)
+      parse: data => ChainEntry.fromRaw(data)
     });
   }
 

lib/wallet/http.js

@@ -26,14 +26,16 @@ const HDPrivateKey = require('../hd/private');
 const HDPublicKey = require('../hd/public');
 const common = require('./common');
 
+/**
+ * HTTP
+ * @alias module:wallet.HTTP
+ */
+
 class HTTP extends Server {
   /**
-   * HTTP
-   * @alias module:wallet.HTTP
+   * Create an http server.
    * @constructor
    * @param {Object} options
-   * @see HTTPBase
-   * @emits HTTP#socket
    */
 
   constructor(options) {

lib/wallet/nullclient.js

@@ -10,159 +10,160 @@ const assert = require('assert');
 const EventEmitter = require('events');
 
 /**
- * NullClient
+ * Null Client
  * Sort of a fake local client for separation of concerns.
  * @alias module:node.NullClient
- * @constructor
  */
 
-function NullClient(wdb) {
-  if (!(this instanceof NullClient))
-    return new NullClient(wdb);
+class NullClient extends EventEmitter {
+  /**
+   * Create a client.
+   * @constructor
+   */
 
-  EventEmitter.call(this);
+  constructor(wdb) {
+    super();
 
-  this.wdb = wdb;
-  this.network = wdb.network;
-  this.opened = false;
+    this.wdb = wdb;
+    this.network = wdb.network;
+    this.opened = false;
+  }
+
+  /**
+   * Open the client.
+   * @returns {Promise}
+   */
+
+  async open(options) {
+    assert(!this.opened, 'NullClient is already open.');
+    this.opened = true;
+    setImmediate(() => this.emit('connect'));
+  }
+
+  /**
+   * Close the client.
+   * @returns {Promise}
+   */
+
+  async close() {
+    assert(this.opened, 'NullClient is not open.');
+    this.opened = false;
+    setImmediate(() => this.emit('disconnect'));
+  }
+
+  /**
+   * Add a listener.
+   * @param {String} type
+   * @param {Function} handler
+   */
+
+  bind(type, handler) {
+    return this.on(type, handler);
+  }
+
+  /**
+   * Add a listener.
+   * @param {String} type
+   * @param {Function} handler
+   */
+
+  hook(type, handler) {
+    return this.on(type, handler);
+  }
+
+  /**
+   * Get chain tip.
+   * @returns {Promise}
+   */
+
+  async getTip() {
+    const {hash, height, time} = this.network.genesis;
+    return { hash, height, time };
+  }
+
+  /**
+   * Get chain entry.
+   * @param {Hash} hash
+   * @returns {Promise}
+   */
+
+  async getEntry(hash) {
+    return { hash, height: 0, time: 0 };
+  }
+
+  /**
+   * Send a transaction. Do not wait for promise.
+   * @param {TX} tx
+   * @returns {Promise}
+   */
+
+  async send(tx) {
+    this.wdb.emit('send', tx);
+  }
+
+  /**
+   * Set bloom filter.
+   * @param {Bloom} filter
+   * @returns {Promise}
+   */
+
+  async setFilter(filter) {
+    this.wdb.emit('set filter', filter);
+  }
+
+  /**
+   * Add data to filter.
+   * @param {Buffer} data
+   * @returns {Promise}
+   */
+
+  async addFilter(data) {
+    this.wdb.emit('add filter', data);
+  }
+
+  /**
+   * Reset filter.
+   * @returns {Promise}
+   */
+
+  async resetFilter() {
+    this.wdb.emit('reset filter');
+  }
+
+  /**
+   * Esimate smart fee.
+   * @param {Number?} blocks
+   * @returns {Promise}
+   */
+
+  async estimateFee(blocks) {
+    return this.network.feeRate;
+  }
+
+  /**
+   * Get hash range.
+   * @param {Number} start
+   * @param {Number} end
+   * @returns {Promise}
+   */
+
+  async getHashes(start = -1, end = -1) {
+    return [this.network.genesis.hash];
+  }
+
+  /**
+   * Rescan for any missed transactions.
+   * @param {Number|Hash} start - Start block.
+   * @param {Bloom} filter
+   * @param {Function} iter - Iterator.
+   * @returns {Promise}
+   */
+
+  async rescan(start) {
+    ;
+  }
 }
 
-Object.setPrototypeOf(NullClient.prototype, EventEmitter.prototype);
-
-/**
- * Open the client.
- * @returns {Promise}
- */
-
-NullClient.prototype.open = async function open(options) {
-  assert(!this.opened, 'NullClient is already open.');
-  this.opened = true;
-  setImmediate(() => this.emit('connect'));
-};
-
-/**
- * Close the client.
- * @returns {Promise}
- */
-
-NullClient.prototype.close = async function close() {
-  assert(this.opened, 'NullClient is not open.');
-  this.opened = false;
-  setImmediate(() => this.emit('disconnect'));
-};
-
-/**
- * Add a listener.
- * @param {String} type
- * @param {Function} handler
- */
-
-NullClient.prototype.bind = function bind(type, handler) {
-  return this.on(type, handler);
-};
-
-/**
- * Add a listener.
- * @param {String} type
- * @param {Function} handler
- */
-
-NullClient.prototype.hook = function hook(type, handler) {
-  return this.on(type, handler);
-};
-
-/**
- * Get chain tip.
- * @returns {Promise}
- */
-
-NullClient.prototype.getTip = async function getTip() {
-  const {hash, height, time} = this.network.genesis;
-  return { hash, height, time };
-};
-
-/**
- * Get chain entry.
- * @param {Hash} hash
- * @returns {Promise}
- */
-
-NullClient.prototype.getEntry = async function getEntry(hash) {
-  return { hash, height: 0, time: 0 };
-};
-
-/**
- * Send a transaction. Do not wait for promise.
- * @param {TX} tx
- * @returns {Promise}
- */
-
-NullClient.prototype.send = async function send(tx) {
-  this.wdb.emit('send', tx);
-};
-
-/**
- * Set bloom filter.
- * @param {Bloom} filter
- * @returns {Promise}
- */
-
-NullClient.prototype.setFilter = async function setFilter(filter) {
-  this.wdb.emit('set filter', filter);
-};
-
-/**
- * Add data to filter.
- * @param {Buffer} data
- * @returns {Promise}
- */
-
-NullClient.prototype.addFilter = async function addFilter(data) {
-  this.wdb.emit('add filter', data);
-};
-
-/**
- * Reset filter.
- * @returns {Promise}
- */
-
-NullClient.prototype.resetFilter = async function resetFilter() {
-  this.wdb.emit('reset filter');
-};
-
-/**
- * Esimate smart fee.
- * @param {Number?} blocks
- * @returns {Promise}
- */
-
-NullClient.prototype.estimateFee = async function estimateFee(blocks) {
-  return this.network.feeRate;
-};
-
-/**
- * Get hash range.
- * @param {Number} start
- * @param {Number} end
- * @returns {Promise}
- */
-
-NullClient.prototype.getHashes = async function getHashes(start = -1, end = -1) {
-  return [this.network.genesis.hash];
-};
-
-/**
- * Rescan for any missed transactions.
- * @param {Number|Hash} start - Start block.
- * @param {Bloom} filter
- * @param {Function} iter - Iterator.
- * @returns {Promise}
- */
-
-NullClient.prototype.rescan = async function rescan(start) {
-  ;
-};
-
 /*
  * Expose
  */

lib/wallet/path.js

@@ -14,36 +14,283 @@ const {encoding} = bio;
 /**
  * Path
  * @alias module:wallet.Path
- * @constructor
- * @property {WalletID} wid
  * @property {String} name - Account name.
  * @property {Number} account - Account index.
  * @property {Number} branch - Branch index.
  * @property {Number} index - Address index.
- * @property {Address|null} address
  */
 
-function Path(options) {
-  if (!(this instanceof Path))
-    return new Path(options);
+class Path {
+  /**
+   * Create a path.
+   * @constructor
+   * @param {Object?} options
+   */
 
-  this.keyType = Path.types.HD;
+  constructor(options) {
+    this.keyType = Path.types.HD;
 
-  this.name = null; // Passed in by caller.
-  this.account = 0;
-  this.branch = -1;
-  this.index = -1;
+    this.name = null; // Passed in by caller.
+    this.account = 0;
+    this.branch = -1;
+    this.index = -1;
 
-  this.encrypted = false;
-  this.data = null;
+    this.encrypted = false;
+    this.data = null;
 
-  // Currently unused.
-  this.type = Address.types.PUBKEYHASH;
-  this.version = -1;
-  this.hash = null; // Passed in by caller.
+    // Currently unused.
+    this.type = Address.types.PUBKEYHASH;
+    this.version = -1;
+    this.hash = null; // Passed in by caller.
 
-  if (options)
-    this.fromOptions(options);
+    if (options)
+      this.fromOptions(options);
+  }
+
+  /**
+   * Instantiate path from options object.
+   * @private
+   * @param {Object} options
+   * @returns {Path}
+   */
+
+  fromOptions(options) {
+    this.keyType = options.keyType;
+
+    this.name = options.name;
+    this.account = options.account;
+    this.branch = options.branch;
+    this.index = options.index;
+
+    this.encrypted = options.encrypted;
+    this.data = options.data;
+
+    this.type = options.type;
+    this.version = options.version;
+    this.hash = options.hash;
+
+    return this;
+  }
+
+  /**
+   * Instantiate path from options object.
+   * @param {Object} options
+   * @returns {Path}
+   */
+
+  static fromOptions(options) {
+    return new this().fromOptions(options);
+  }
+
+  /**
+   * Clone the path object.
+   * @returns {Path}
+   */
+
+  clone() {
+    const path = new this.constructor();
+
+    path.keyType = this.keyType;
+
+    path.name = this.name;
+    path.account = this.account;
+    path.branch = this.branch;
+    path.index = this.index;
+
+    path.encrypted = this.encrypted;
+    path.data = this.data;
+
+    path.type = this.type;
+    path.version = this.version;
+    path.hash = this.hash;
+
+    return path;
+  }
+
+  /**
+   * Inject properties from serialized data.
+   * @private
+   * @param {Buffer} data
+   */
+
+  fromRaw(data) {
+    const br = bio.read(data);
+
+    this.account = br.readU32();
+    this.keyType = br.readU8();
+
+    switch (this.keyType) {
+      case Path.types.HD:
+        this.branch = br.readU32();
+        this.index = br.readU32();
+        break;
+      case Path.types.KEY:
+        this.encrypted = br.readU8() === 1;
+        this.data = br.readVarBytes();
+        break;
+      case Path.types.ADDRESS:
+        // Hash will be passed in by caller.
+        break;
+      default:
+        assert(false);
+        break;
+    }
+
+    this.version = br.readI8();
+    this.type = br.readU8();
+
+    if (this.type === 129 || this.type === 130)
+      this.type = 4;
+
+    return this;
+  }
+
+  /**
+   * Instantiate path from serialized data.
+   * @param {Buffer} data
+   * @returns {Path}
+   */
+
+  static fromRaw(data) {
+    return new this().fromRaw(data);
+  }
+
+  /**
+   * Calculate serialization size.
+   * @returns {Number}
+   */
+
+  getSize() {
+    let size = 0;
+
+    size += 5;
+
+    switch (this.keyType) {
+      case Path.types.HD:
+        size += 8;
+        break;
+      case Path.types.KEY:
+        size += 1;
+        size += encoding.sizeVarBytes(this.data);
+        break;
+    }
+
+    size += 2;
+
+    return size;
+  }
+
+  /**
+   * Serialize path.
+   * @returns {Buffer}
+   */
+
+  toRaw() {
+    const size = this.getSize();
+    const bw = bio.write(size);
+
+    bw.writeU32(this.account);
+    bw.writeU8(this.keyType);
+
+    switch (this.keyType) {
+      case Path.types.HD:
+        assert(!this.data);
+        assert(this.index !== -1);
+        bw.writeU32(this.branch);
+        bw.writeU32(this.index);
+        break;
+      case Path.types.KEY:
+        assert(this.data);
+        assert(this.index === -1);
+        bw.writeU8(this.encrypted ? 1 : 0);
+        bw.writeVarBytes(this.data);
+        break;
+      case Path.types.ADDRESS:
+        assert(!this.data);
+        assert(this.index === -1);
+        break;
+      default:
+        assert(false);
+        break;
+    }
+
+    bw.writeI8(this.version);
+    bw.writeU8(this.type);
+
+    return bw.render();
+  }
+
+  /**
+   * Inject properties from address.
+   * @private
+   * @param {Account} account
+   * @param {Address} address
+   */
+
+  fromAddress(account, address) {
+    this.keyType = Path.types.ADDRESS;
+    this.name = account.name;
+    this.account = account.accountIndex;
+    this.version = address.version;
+    this.type = address.type;
+    this.hash = address.getHash('hex');
+    return this;
+  }
+
+  /**
+   * Instantiate path from address.
+   * @param {Account} account
+   * @param {Address} address
+   * @returns {Path}
+   */
+
+  static fromAddress(account, address) {
+    return new this().fromAddress(account, address);
+  }
+
+  /**
+   * Convert path object to string derivation path.
+   * @returns {String}
+   */
+
+  toPath() {
+    if (this.keyType !== Path.types.HD)
+      return null;
+
+    return `m/${this.account}'/${this.branch}/${this.index}`;
+  }
+
+  /**
+   * Convert path object to an address (currently unused).
+   * @returns {Address}
+   */
+
+  toAddress() {
+    return Address.fromHash(this.hash, this.type, this.version);
+  }
+
+  /**
+   * Convert path to a json-friendly object.
+   * @returns {Object}
+   */
+
+  toJSON() {
+    return {
+      name: this.name,
+      account: this.account,
+      change: this.branch === 1,
+      derivation: this.toPath()
+    };
+  }
+
+  /**
+   * Inspect the path.
+   * @returns {String}
+   */
+
+  inspect() {
+    return `<Path: ${this.name}:${this.toPath()}>`;
+  }
 }
 
 /**
@@ -59,249 +306,16 @@ Path.types = {
 };
 
 /**
- * Instantiate path from options object.
- * @private
- * @param {Object} options
- * @returns {Path}
+ * Path types.
+ * @enum {Number}
+ * @default
  */
 
-Path.prototype.fromOptions = function fromOptions(options) {
-  this.keyType = options.keyType;
-
-  this.name = options.name;
-  this.account = options.account;
-  this.branch = options.branch;
-  this.index = options.index;
-
-  this.encrypted = options.encrypted;
-  this.data = options.data;
-
-  this.type = options.type;
-  this.version = options.version;
-  this.hash = options.hash;
-
-  return this;
-};
-
-/**
- * Instantiate path from options object.
- * @param {Object} options
- * @returns {Path}
- */
-
-Path.fromOptions = function fromOptions(options) {
-  return new Path().fromOptions(options);
-};
-
-/**
- * Clone the path object.
- * @returns {Path}
- */
-
-Path.prototype.clone = function clone() {
-  const path = new Path();
-
-  path.keyType = this.keyType;
-
-  path.name = this.name;
-  path.account = this.account;
-  path.branch = this.branch;
-  path.index = this.index;
-
-  path.encrypted = this.encrypted;
-  path.data = this.data;
-
-  path.type = this.type;
-  path.version = this.version;
-  path.hash = this.hash;
-
-  return path;
-};
-
-/**
- * Inject properties from serialized data.
- * @private
- * @param {Buffer} data
- */
-
-Path.prototype.fromRaw = function fromRaw(data) {
-  const br = bio.read(data);
-
-  this.account = br.readU32();
-  this.keyType = br.readU8();
-
-  switch (this.keyType) {
-    case Path.types.HD:
-      this.branch = br.readU32();
-      this.index = br.readU32();
-      break;
-    case Path.types.KEY:
-      this.encrypted = br.readU8() === 1;
-      this.data = br.readVarBytes();
-      break;
-    case Path.types.ADDRESS:
-      // Hash will be passed in by caller.
-      break;
-    default:
-      assert(false);
-      break;
-  }
-
-  this.version = br.readI8();
-  this.type = br.readU8();
-
-  if (this.type === 129 || this.type === 130)
-    this.type = 4;
-
-  return this;
-};
-
-/**
- * Instantiate path from serialized data.
- * @param {Buffer} data
- * @returns {Path}
- */
-
-Path.fromRaw = function fromRaw(data) {
-  return new Path().fromRaw(data);
-};
-
-/**
- * Calculate serialization size.
- * @returns {Number}
- */
-
-Path.prototype.getSize = function getSize() {
-  let size = 0;
-
-  size += 5;
-
-  switch (this.keyType) {
-    case Path.types.HD:
-      size += 8;
-      break;
-    case Path.types.KEY:
-      size += 1;
-      size += encoding.sizeVarBytes(this.data);
-      break;
-  }
-
-  size += 2;
-
-  return size;
-};
-
-/**
- * Serialize path.
- * @returns {Buffer}
- */
-
-Path.prototype.toRaw = function toRaw() {
-  const size = this.getSize();
-  const bw = bio.write(size);
-
-  bw.writeU32(this.account);
-  bw.writeU8(this.keyType);
-
-  switch (this.keyType) {
-    case Path.types.HD:
-      assert(!this.data);
-      assert(this.index !== -1);
-      bw.writeU32(this.branch);
-      bw.writeU32(this.index);
-      break;
-    case Path.types.KEY:
-      assert(this.data);
-      assert(this.index === -1);
-      bw.writeU8(this.encrypted ? 1 : 0);
-      bw.writeVarBytes(this.data);
-      break;
-    case Path.types.ADDRESS:
-      assert(!this.data);
-      assert(this.index === -1);
-      break;
-    default:
-      assert(false);
-      break;
-  }
-
-  bw.writeI8(this.version);
-  bw.writeU8(this.type);
-
-  return bw.render();
-};
-
-/**
- * Inject properties from address.
- * @private
- * @param {Account} account
- * @param {Address} address
- */
-
-Path.prototype.fromAddress = function fromAddress(account, address) {
-  this.keyType = Path.types.ADDRESS;
-  this.name = account.name;
-  this.account = account.accountIndex;
-  this.version = address.version;
-  this.type = address.type;
-  this.hash = address.getHash('hex');
-  return this;
-};
-
-/**
- * Instantiate path from address.
- * @param {Account} account
- * @param {Address} address
- * @returns {Path}
- */
-
-Path.fromAddress = function fromAddress(account, address) {
-  return new Path().fromAddress(account, address);
-};
-
-/**
- * Convert path object to string derivation path.
- * @returns {String}
- */
-
-Path.prototype.toPath = function toPath() {
-  if (this.keyType !== Path.types.HD)
-    return null;
-
-  return `m/${this.account}'/${this.branch}/${this.index}`;
-};
-
-/**
- * Convert path object to an address (currently unused).
- * @returns {Address}
- */
-
-Path.prototype.toAddress = function toAddress() {
-  return Address.fromHash(this.hash, this.type, this.version);
-};
-
-/**
- * Convert path to a json-friendly object.
- * @returns {Object}
- */
-
-Path.prototype.toJSON = function toJSON() {
-  return {
-    name: this.name,
-    account: this.account,
-    change: this.branch === 1,
-    derivation: this.toPath()
-  };
-};
-
-/**
- * Inspect the path.
- * @returns {String}
- */
-
-Path.prototype.inspect = function inspect() {
-  return `<Path: ${this.name}:${this.toPath()}>`;
-};
+Path.typesByVal = [
+  'HD',
+  'KEY',
+  'ADDRESS'
+];
 
 /**
  * Expose

lib/wallet/plugin.js

@@ -20,71 +20,75 @@ const plugin = exports;
 
 /**
  * Plugin
- * @constructor
- * @param {Node} node
+ * @extends EventEmitter
  */
 
-function Plugin(node) {
-  if (!(this instanceof Plugin))
-    return new Plugin(node);
+class Plugin extends EventEmitter {
+  /**
+   * Create a plugin.
+   * @constructor
+   * @param {Node} node
+   */
 
-  const config = node.config;
+  constructor(node) {
+    super();
 
-  this.network = node.network;
-  this.logger = node.logger;
+    const config = node.config;
 
-  this.client = new NodeClient(node);
-  this.plugin = true;
+    this.network = node.network;
+    this.logger = node.logger;
 
-  this.wdb = new WalletDB({
-    network: node.network,
-    logger: node.logger,
-    workers: node.workers,
-    client: this.client,
-    prefix: config.prefix,
-    db: config.str(['wallet-db', 'db']),
-    maxFiles: config.uint('wallet-max-files'),
-    cacheSize: config.mb('wallet-cache-size'),
-    witness: config.bool('wallet-witness'),
-    checkpoints: config.bool('wallet-checkpoints'),
-    startHeight: config.uint('wallet-start-height'),
-    wipeNoReally: config.bool('wallet-wipe-no-really'),
-    spv: node.spv
-  });
+    this.client = new NodeClient(node);
+    this.plugin = true;
 
-  this.rpc = new RPC(this);
+    this.wdb = new WalletDB({
+      network: node.network,
+      logger: node.logger,
+      workers: node.workers,
+      client: this.client,
+      prefix: config.prefix,
+      db: config.str(['wallet-db', 'db']),
+      maxFiles: config.uint('wallet-max-files'),
+      cacheSize: config.mb('wallet-cache-size'),
+      witness: config.bool('wallet-witness'),
+      checkpoints: config.bool('wallet-checkpoints'),
+      startHeight: config.uint('wallet-start-height'),
+      wipeNoReally: config.bool('wallet-wipe-no-really'),
+      spv: node.spv
+    });
 
-  this.http = new HTTP({
-    network: node.network,
-    logger: node.logger,
-    node: this,
-    apiKey: config.str(['wallet-api-key', 'api-key']),
-    walletAuth: config.bool('wallet-auth'),
-    noAuth: config.bool(['wallet-no-auth', 'no-auth'])
-  });
+    this.rpc = new RPC(this);
 
-  this.http.attach('/wallet', node.http);
+    this.http = new HTTP({
+      network: node.network,
+      logger: node.logger,
+      node: this,
+      apiKey: config.str(['wallet-api-key', 'api-key']),
+      walletAuth: config.bool('wallet-auth'),
+      noAuth: config.bool(['wallet-no-auth', 'no-auth'])
+    });
 
-  this.init();
+    this.http.attach('/wallet', node.http);
+
+    this.init();
+  }
+
+  init() {
+    this.wdb.on('error', err => this.emit('error', err));
+    this.http.on('error', err => this.emit('error', err));
+  }
+
+  async open() {
+    await this.wdb.open();
+    this.rpc.wallet = this.wdb.primary;
+  }
+
+  async close() {
+    this.rpc.wallet = null;
+    await this.wdb.close();
+  }
 }
 
-Object.setPrototypeOf(Plugin.prototype, EventEmitter.prototype);
-
-Plugin.prototype.init = function init() {
-  this.wdb.on('error', err => this.emit('error', err));
-  this.http.on('error', err => this.emit('error', err));
-};
-
-Plugin.prototype.open = async function open() {
-  await this.wdb.open();
-  this.rpc.wallet = this.wdb.primary;
-};
-
-Plugin.prototype.close = async function close() {
-  this.rpc.wallet = this.wdb.primary;
-  await this.wdb.close();
-};
-
 /**
  * Plugin name.
  * @const {String}

lib/wallet/records.js

@@ -18,464 +18,479 @@ const {encoding} = bio;
 
 /**
  * Chain State
- * @constructor
  */
 
-function ChainState() {
-  if (!(this instanceof ChainState))
-    return new ChainState();
+class ChainState {
+  /**
+   * Create a chain state.
+   * @constructor
+   */
 
-  this.startHeight = 0;
-  this.startHash = encoding.NULL_HASH;
-  this.height = 0;
-  this.marked = false;
+  constructor() {
+    this.startHeight = 0;
+    this.startHash = encoding.NULL_HASH;
+    this.height = 0;
+    this.marked = false;
+  }
+
+  /**
+   * Clone the state.
+   * @returns {ChainState}
+   */
+
+  clone() {
+    const state = new ChainState();
+    state.startHeight = this.startHeight;
+    state.startHash = this.startHash;
+    state.height = this.height;
+    state.marked = this.marked;
+    return state;
+  }
+
+  /**
+   * Inject properties from serialized data.
+   * @private
+   * @param {Buffer} data
+   */
+
+  fromRaw(data) {
+    const br = bio.read(data);
+
+    this.startHeight = br.readU32();
+    this.startHash = br.readHash('hex');
+    this.height = br.readU32();
+    this.marked = br.readU8() === 1;
+
+    return this;
+  }
+
+  /**
+   * Instantiate chain state from serialized data.
+   * @param {Hash} hash
+   * @param {Buffer} data
+   * @returns {ChainState}
+   */
+
+  static fromRaw(data) {
+    return new this().fromRaw(data);
+  }
+
+  /**
+   * Serialize the chain state.
+   * @returns {Buffer}
+   */
+
+  toRaw() {
+    const bw = bio.write(41);
+
+    bw.writeU32(this.startHeight);
+    bw.writeHash(this.startHash);
+    bw.writeU32(this.height);
+    bw.writeU8(this.marked ? 1 : 0);
+
+    return bw.render();
+  }
 }
 
-/**
- * Clone the state.
- * @returns {ChainState}
- */
-
-ChainState.prototype.clone = function clone() {
-  const state = new ChainState();
-  state.startHeight = this.startHeight;
-  state.startHash = this.startHash;
-  state.height = this.height;
-  state.marked = this.marked;
-  return state;
-};
-
-/**
- * Inject properties from serialized data.
- * @private
- * @param {Buffer} data
- */
-
-ChainState.prototype.fromRaw = function fromRaw(data) {
-  const br = bio.read(data);
-
-  this.startHeight = br.readU32();
-  this.startHash = br.readHash('hex');
-  this.height = br.readU32();
-  this.marked = br.readU8() === 1;
-
-  return this;
-};
-
-/**
- * Instantiate chain state from serialized data.
- * @param {Hash} hash
- * @param {Buffer} data
- * @returns {ChainState}
- */
-
-ChainState.fromRaw = function fromRaw(data) {
-  return new ChainState().fromRaw(data);
-};
-
-/**
- * Serialize the chain state.
- * @returns {Buffer}
- */
-
-ChainState.prototype.toRaw = function toRaw() {
-  const bw = bio.write(41);
-
-  bw.writeU32(this.startHeight);
-  bw.writeHash(this.startHash);
-  bw.writeU32(this.height);
-  bw.writeU8(this.marked ? 1 : 0);
-
-  return bw.render();
-};
-
 /**
  * Block Meta
- * @constructor
- * @param {Hash} hash
- * @param {Number} height
- * @param {Number} time
  */
 
-function BlockMeta(hash, height, time) {
-  if (!(this instanceof BlockMeta))
-    return new BlockMeta(hash, height, time);
+class BlockMeta {
+  /**
+   * Create block meta.
+   * @constructor
+   * @param {Hash} hash
+   * @param {Number} height
+   * @param {Number} time
+   */
 
-  this.hash = hash || encoding.NULL_HASH;
-  this.height = height != null ? height : -1;
-  this.time = time || 0;
-}
-
-/**
- * Clone the block.
- * @returns {BlockMeta}
- */
-
-BlockMeta.prototype.clone = function clone() {
-  return new BlockMeta(this.hash, this.height, this.time);
-};
-
-/**
- * Get block meta hash as a buffer.
- * @returns {Buffer}
- */
-
-BlockMeta.prototype.toHash = function toHash() {
-  return Buffer.from(this.hash, 'hex');
-};
-
-/**
- * Instantiate block meta from chain entry.
- * @private
- * @param {ChainEntry} entry
- */
-
-BlockMeta.prototype.fromEntry = function fromEntry(entry) {
-  this.hash = entry.hash;
-  this.height = entry.height;
-  this.time = entry.time;
-  return this;
-};
-
-/**
- * Instantiate block meta from json object.
- * @private
- * @param {Object} json
- */
-
-BlockMeta.prototype.fromJSON = function fromJSON(json) {
-  this.hash = encoding.revHex(json.hash);
-  this.height = json.height;
-  this.time = json.time;
-  return this;
-};
-
-/**
- * Instantiate block meta from serialized tip data.
- * @private
- * @param {Buffer} data
- */
-
-BlockMeta.prototype.fromRaw = function fromRaw(data) {
-  const br = bio.read(data);
-  this.hash = br.readHash('hex');
-  this.height = br.readU32();
-  this.time = br.readU32();
-  return this;
-};
-
-/**
- * Instantiate block meta from chain entry.
- * @param {ChainEntry} entry
- * @returns {BlockMeta}
- */
-
-BlockMeta.fromEntry = function fromEntry(entry) {
-  return new BlockMeta().fromEntry(entry);
-};
-
-/**
- * Instantiate block meta from json object.
- * @param {Object} json
- * @returns {BlockMeta}
- */
-
-BlockMeta.fromJSON = function fromJSON(json) {
-  return new BlockMeta().fromJSON(json);
-};
-
-/**
- * Instantiate block meta from serialized data.
- * @param {Hash} hash
- * @param {Buffer} data
- * @returns {BlockMeta}
- */
-
-BlockMeta.fromRaw = function fromRaw(data) {
-  return new BlockMeta().fromRaw(data);
-};
-
-/**
- * Serialize the block meta.
- * @returns {Buffer}
- */
-
-BlockMeta.prototype.toRaw = function toRaw() {
-  const bw = bio.write(42);
-  bw.writeHash(this.hash);
-  bw.writeU32(this.height);
-  bw.writeU32(this.time);
-  return bw.render();
-};
-
-/**
- * Convert the block meta to a more json-friendly object.
- * @returns {Object}
- */
-
-BlockMeta.prototype.toJSON = function toJSON() {
-  return {
-    hash: encoding.revHex(this.hash),
-    height: this.height,
-    time: this.time
-  };
-};
-
-/**
- * TXRecord
- * @constructor
- * @param {TX} tx
- * @param {BlockMeta?} block
- */
-
-function TXRecord(tx, block) {
-  if (!(this instanceof TXRecord))
-    return new TXRecord(tx, block);
-
-  this.tx = null;
-  this.hash = null;
-  this.mtime = util.now();
-  this.height = -1;
-  this.block = null;
-  this.index = -1;
-  this.time = 0;
-
-  if (tx)
-    this.fromTX(tx, block);
-}
-
-/**
- * Inject properties from tx and block.
- * @private
- * @param {TX} tx
- * @param {Block?} block
- * @returns {TXRecord}
- */
-
-TXRecord.prototype.fromTX = function fromTX(tx, block) {
-  this.tx = tx;
-  this.hash = tx.hash('hex');
-
-  if (block)
-    this.setBlock(block);
-
-  return this;
-};
-
-/**
- * Instantiate tx record from tx and block.
- * @param {TX} tx
- * @param {Block?} block
- * @returns {TXRecord}
- */
-
-TXRecord.fromTX = function fromTX(tx, block) {
-  return new TXRecord().fromTX(tx, block);
-};
-
-/**
- * Set block data (confirm).
- * @param {BlockMeta} block
- */
-
-TXRecord.prototype.setBlock = function setBlock(block) {
-  this.height = block.height;
-  this.block = block.hash;
-  this.time = block.time;
-};
-
-/**
- * Unset block (unconfirm).
- */
-
-TXRecord.prototype.unsetBlock = function unsetBlock() {
-  this.height = -1;
-  this.block = null;
-  this.time = 0;
-};
-
-/**
- * Convert tx record to a block meta.
- * @returns {BlockMeta}
- */
-
-TXRecord.prototype.getBlock = function getBlock() {
-  if (this.height === -1)
-    return null;
-
-  return new BlockMeta(this.block, this.height, this.time);
-};
-
-/**
- * Calculate current number of transaction confirmations.
- * @param {Number} height - Current chain height.
- * @returns {Number} confirmations
- */
-
-TXRecord.prototype.getDepth = function getDepth(height) {
-  assert(typeof height === 'number', 'Must pass in height.');
-
-  if (this.height === -1)
-    return 0;
-
-  if (height < this.height)
-    return 0;
-
-  return height - this.height + 1;
-};
-
-/**
- * Get serialization size.
- * @returns {Number}
- */
-
-TXRecord.prototype.getSize = function getSize() {
-  let size = 0;
-
-  size += this.tx.getSize();
-  size += 4;
-
-  if (this.block) {
-    size += 1;
-    size += 32;
-    size += 4 * 3;
-  } else {
-    size += 1;
+  constructor(hash, height, time) {
+    this.hash = hash || encoding.NULL_HASH;
+    this.height = height != null ? height : -1;
+    this.time = time || 0;
   }
 
-  return size;
-};
+  /**
+   * Clone the block.
+   * @returns {BlockMeta}
+   */
 
-/**
- * Serialize a transaction to "extended format".
- * @returns {Buffer}
- */
-
-TXRecord.prototype.toRaw = function toRaw() {
-  const size = this.getSize();
-  const bw = bio.write(size);
-
-  let index = this.index;
-
-  this.tx.toWriter(bw);
-
-  bw.writeU32(this.mtime);
-
-  if (this.block) {
-    if (index === -1)
-      index = 0x7fffffff;
-
-    bw.writeU8(1);
-    bw.writeHash(this.block);
-    bw.writeU32(this.height);
-    bw.writeU32(this.time);
-    bw.writeU32(index);
-  } else {
-    bw.writeU8(0);
+  clone() {
+    return new this.constructor(this.hash, this.height, this.time);
   }
 
-  return bw.render();
-};
+  /**
+   * Get block meta hash as a buffer.
+   * @returns {Buffer}
+   */
 
-/**
- * Inject properties from "extended" format.
- * @private
- * @param {Buffer} data
- */
+  toHash() {
+    return Buffer.from(this.hash, 'hex');
+  }
 
-TXRecord.prototype.fromRaw = function fromRaw(data) {
-  const br = bio.read(data);
+  /**
+   * Instantiate block meta from chain entry.
+   * @private
+   * @param {ChainEntry} entry
+   */
 
-  this.tx = new TX();
-  this.tx.fromReader(br);
+  fromEntry(entry) {
+    this.hash = entry.hash;
+    this.height = entry.height;
+    this.time = entry.time;
+    return this;
+  }
 
-  this.hash = this.tx.hash('hex');
-  this.mtime = br.readU32();
+  /**
+   * Instantiate block meta from json object.
+   * @private
+   * @param {Object} json
+   */
 
-  if (br.readU8() === 1) {
-    this.block = br.readHash('hex');
+  fromJSON(json) {
+    this.hash = encoding.revHex(json.hash);
+    this.height = json.height;
+    this.time = json.time;
+    return this;
+  }
+
+  /**
+   * Instantiate block meta from serialized tip data.
+   * @private
+   * @param {Buffer} data
+   */
+
+  fromRaw(data) {
+    const br = bio.read(data);
+    this.hash = br.readHash('hex');
     this.height = br.readU32();
     this.time = br.readU32();
-    this.index = br.readU32();
-    if (this.index === 0x7fffffff)
-      this.index = -1;
+    return this;
   }
 
-  return this;
-};
+  /**
+   * Instantiate block meta from chain entry.
+   * @param {ChainEntry} entry
+   * @returns {BlockMeta}
+   */
+
+  static fromEntry(entry) {
+    return new this().fromEntry(entry);
+  }
+
+  /**
+   * Instantiate block meta from json object.
+   * @param {Object} json
+   * @returns {BlockMeta}
+   */
+
+  static fromJSON(json) {
+    return new this().fromJSON(json);
+  }
+
+  /**
+   * Instantiate block meta from serialized data.
+   * @param {Hash} hash
+   * @param {Buffer} data
+   * @returns {BlockMeta}
+   */
+
+  static fromRaw(data) {
+    return new this().fromRaw(data);
+  }
+
+  /**
+   * Serialize the block meta.
+   * @returns {Buffer}
+   */
+
+  toRaw() {
+    const bw = bio.write(42);
+    bw.writeHash(this.hash);
+    bw.writeU32(this.height);
+    bw.writeU32(this.time);
+    return bw.render();
+  }
+
+  /**
+   * Convert the block meta to a more json-friendly object.
+   * @returns {Object}
+   */
+
+  toJSON() {
+    return {
+      hash: encoding.revHex(this.hash),
+      height: this.height,
+      time: this.time
+    };
+  }
+}
 
 /**
- * Instantiate a transaction from a buffer
- * in "extended" serialization format.
- * @param {Buffer} data
- * @returns {TX}
+ * TX Record
  */
 
-TXRecord.fromRaw = function fromRaw(data) {
-  return new TXRecord().fromRaw(data);
-};
+class TXRecord {
+  /**
+   * Create tx record.
+   * @constructor
+   * @param {TX} tx
+   * @param {BlockMeta?} block
+   */
+
+  constructor(tx, block) {
+    this.tx = null;
+    this.hash = null;
+    this.mtime = util.now();
+    this.height = -1;
+    this.block = null;
+    this.index = -1;
+    this.time = 0;
+
+    if (tx)
+      this.fromTX(tx, block);
+  }
+
+  /**
+   * Inject properties from tx and block.
+   * @private
+   * @param {TX} tx
+   * @param {Block?} block
+   * @returns {TXRecord}
+   */
+
+  fromTX(tx, block) {
+    this.tx = tx;
+    this.hash = tx.hash('hex');
+
+    if (block)
+      this.setBlock(block);
+
+    return this;
+  }
+
+  /**
+   * Instantiate tx record from tx and block.
+   * @param {TX} tx
+   * @param {Block?} block
+   * @returns {TXRecord}
+   */
+
+  static fromTX(tx, block) {
+    return new this().fromTX(tx, block);
+  }
+
+  /**
+   * Set block data (confirm).
+   * @param {BlockMeta} block
+   */
+
+  setBlock(block) {
+    this.height = block.height;
+    this.block = block.hash;
+    this.time = block.time;
+  }
+
+  /**
+   * Unset block (unconfirm).
+   */
+
+  unsetBlock() {
+    this.height = -1;
+    this.block = null;
+    this.time = 0;
+  }
+
+  /**
+   * Convert tx record to a block meta.
+   * @returns {BlockMeta}
+   */
+
+  getBlock() {
+    if (this.height === -1)
+      return null;
+
+    return new BlockMeta(this.block, this.height, this.time);
+  }
+
+  /**
+   * Calculate current number of transaction confirmations.
+   * @param {Number} height - Current chain height.
+   * @returns {Number} confirmations
+   */
+
+  getDepth(height) {
+    assert(typeof height === 'number', 'Must pass in height.');
+
+    if (this.height === -1)
+      return 0;
+
+    if (height < this.height)
+      return 0;
+
+    return height - this.height + 1;
+  }
+
+  /**
+   * Get serialization size.
+   * @returns {Number}
+   */
+
+  getSize() {
+    let size = 0;
+
+    size += this.tx.getSize();
+    size += 4;
+
+    if (this.block) {
+      size += 1;
+      size += 32;
+      size += 4 * 3;
+    } else {
+      size += 1;
+    }
+
+    return size;
+  }
+
+  /**
+   * Serialize a transaction to "extended format".
+   * @returns {Buffer}
+   */
+
+  toRaw() {
+    const size = this.getSize();
+    const bw = bio.write(size);
+
+    let index = this.index;
+
+    this.tx.toWriter(bw);
+
+    bw.writeU32(this.mtime);
+
+    if (this.block) {
+      if (index === -1)
+        index = 0x7fffffff;
+
+      bw.writeU8(1);
+      bw.writeHash(this.block);
+      bw.writeU32(this.height);
+      bw.writeU32(this.time);
+      bw.writeU32(index);
+    } else {
+      bw.writeU8(0);
+    }
+
+    return bw.render();
+  }
+
+  /**
+   * Inject properties from "extended" format.
+   * @private
+   * @param {Buffer} data
+   */
+
+  fromRaw(data) {
+    const br = bio.read(data);
+
+    this.tx = new TX();
+    this.tx.fromReader(br);
+
+    this.hash = this.tx.hash('hex');
+    this.mtime = br.readU32();
+
+    if (br.readU8() === 1) {
+      this.block = br.readHash('hex');
+      this.height = br.readU32();
+      this.time = br.readU32();
+      this.index = br.readU32();
+      if (this.index === 0x7fffffff)
+        this.index = -1;
+    }
+
+    return this;
+  }
+
+  /**
+   * Instantiate a transaction from a buffer
+   * in "extended" serialization format.
+   * @param {Buffer} data
+   * @returns {TX}
+   */
+
+  static fromRaw(data) {
+    return new this().fromRaw(data);
+  }
+}
 
 /**
  * Map Record
- * @constructor
  */
 
-function MapRecord() {
-  this.wids = new Set();
+class MapRecord {
+  /**
+   * Create map record.
+   * @constructor
+   */
+
+  constructor() {
+    this.wids = new Set();
+  }
+
+  add(wid) {
+    if (this.wids.has(wid))
+      return false;
+
+    this.wids.add(wid);
+
+    return true;
+  }
+
+  remove(wid) {
+    return this.wids.delete(wid);
+  }
+
+  toWriter(bw) {
+    bw.writeU32(this.wids.size);
+
+    for (const wid of this.wids)
+      bw.writeU32(wid);
+
+    return bw;
+  }
+
+  getSize() {
+    return 4 + this.wids.size * 4;
+  }
+
+  toRaw() {
+    const size = this.getSize();
+    return this.toWriter(bio.write(size)).render();
+  }
+
+  fromReader(br) {
+    const count = br.readU32();
+
+    for (let i = 0; i < count; i++)
+      this.wids.add(br.readU32());
+
+    return this;
+  }
+
+  fromRaw(data) {
+    return this.fromReader(bio.read(data));
+  }
+
+  static fromReader(br) {
+    return new this().fromReader(br);
+  }
+
+  static fromRaw(data) {
+    return new this().fromRaw(data);
+  }
 }
 
-MapRecord.prototype.add = function add(wid) {
-  if (this.wids.has(wid))
-    return false;
-
-  this.wids.add(wid);
-
-  return true;
-};
-
-MapRecord.prototype.remove = function remove(wid) {
-  return this.wids.delete(wid);
-};
-
-MapRecord.prototype.toWriter = function toWriter(bw) {
-  bw.writeU32(this.wids.size);
-
-  for (const wid of this.wids)
-    bw.writeU32(wid);
-
-  return bw;
-};
-
-MapRecord.prototype.getSize = function getSize() {
-  return 4 + this.wids.size * 4;
-};
-
-MapRecord.prototype.toRaw = function toRaw() {
-  const size = this.getSize();
-  return this.toWriter(bio.write(size)).render();
-};
-
-MapRecord.prototype.fromReader = function fromReader(br) {
-  const count = br.readU32();
-
-  for (let i = 0; i < count; i++)
-    this.wids.add(br.readU32());
-
-  return this;
-};
-
-MapRecord.prototype.fromRaw = function fromRaw(data) {
-  return this.fromReader(bio.read(data));
-};
-
-MapRecord.fromReader = function fromReader(br) {
-  return new MapRecord().fromReader(br);
-};
-
-MapRecord.fromRaw = function fromRaw(data) {
-  return new MapRecord().fromRaw(data);
-};
-
 /*
  * Expose
  */

lib/wallet/server.js

@@ -16,121 +16,123 @@ const RPC = require('./rpc');
 /**
  * Wallet Node
  * @extends Node
- * @constructor
  */
 
-function WalletNode(options) {
-  if (!(this instanceof WalletNode))
-    return new WalletNode(options);
+class WalletNode extends Node {
+  /**
+   * Create a wallet node.
+   * @constructor
+   * @param {Object?} options
+   */
 
-  Node.call(this, 'bcoin', 'wallet.conf', 'wallet.log', options);
+  constructor(options) {
+    super('bcoin', 'wallet.conf', 'wallet.log', options);
 
-  this.opened = false;
+    this.opened = false;
 
-  this.client = new Client({
-    network: this.network,
-    url: this.config.str('node-url'),
-    host: this.config.str('node-host'),
-    port: this.config.str('node-port', this.network.rpcPort),
-    ssl: this.config.str('node-ssl'),
-    apiKey: this.config.str('node-api-key')
-  });
+    this.client = new Client({
+      network: this.network,
+      url: this.config.str('node-url'),
+      host: this.config.str('node-host'),
+      port: this.config.str('node-port', this.network.rpcPort),
+      ssl: this.config.str('node-ssl'),
+      apiKey: this.config.str('node-api-key')
+    });
 
-  this.wdb = new WalletDB({
-    network: this.network,
-    logger: this.logger,
-    workers: this.workers,
-    client: this.client,
-    prefix: this.config.prefix,
-    db: this.config.str('db'),
-    maxFiles: this.config.uint('max-files'),
-    cacheSize: this.config.mb('cache-size'),
-    witness: this.config.bool('witness'),
-    checkpoints: this.config.bool('checkpoints'),
-    startHeight: this.config.uint('start-height'),
-    wipeNoReally: this.config.bool('wipe-no-really'),
-    spv: this.config.bool('spv')
-  });
+    this.wdb = new WalletDB({
+      network: this.network,
+      logger: this.logger,
+      workers: this.workers,
+      client: this.client,
+      prefix: this.config.prefix,
+      db: this.config.str('db'),
+      maxFiles: this.config.uint('max-files'),
+      cacheSize: this.config.mb('cache-size'),
+      witness: this.config.bool('witness'),
+      checkpoints: this.config.bool('checkpoints'),
+      startHeight: this.config.uint('start-height'),
+      wipeNoReally: this.config.bool('wipe-no-really'),
+      spv: this.config.bool('spv')
+    });
 
-  this.rpc = new RPC(this);
+    this.rpc = new RPC(this);
 
-  this.http = new HTTP({
-    network: this.network,
-    logger: this.logger,
-    node: this,
-    prefix: this.config.prefix,
-    ssl: this.config.bool('ssl'),
-    keyFile: this.config.path('ssl-key'),
-    certFile: this.config.path('ssl-cert'),
-    host: this.config.str('http-host'),
-    port: this.config.uint('http-port'),
-    apiKey: this.config.str('api-key'),
-    noAuth: this.config.bool('no-auth'),
-    walletAuth: this.config.bool('wallet-auth')
-  });
+    this.http = new HTTP({
+      network: this.network,
+      logger: this.logger,
+      node: this,
+      prefix: this.config.prefix,
+      ssl: this.config.bool('ssl'),
+      keyFile: this.config.path('ssl-key'),
+      certFile: this.config.path('ssl-cert'),
+      host: this.config.str('http-host'),
+      port: this.config.uint('http-port'),
+      apiKey: this.config.str('api-key'),
+      noAuth: this.config.bool('no-auth'),
+      walletAuth: this.config.bool('wallet-auth')
+    });
 
-  this.init();
+    this.init();
+  }
+
+  /**
+   * Initialize the node.
+   * @private
+   */
+
+  init() {
+    this.wdb.on('error', err => this.error(err));
+    this.http.on('error', err => this.error(err));
+
+    this.loadPlugins();
+  }
+
+  /**
+   * Open the node and all its child objects,
+   * wait for the database to load.
+   * @alias WalletNode#open
+   * @returns {Promise}
+   */
+
+  async open() {
+    assert(!this.opened, 'WalletNode is already open.');
+    this.opened = true;
+
+    await this.handlePreopen();
+    await this.wdb.open();
+
+    this.rpc.wallet = this.wdb.primary;
+
+    await this.openPlugins();
+
+    await this.http.open();
+    await this.handleOpen();
+
+    this.logger.info('Wallet node is loaded.');
+  }
+
+  /**
+   * Close the node, wait for the database to close.
+   * @alias WalletNode#close
+   * @returns {Promise}
+   */
+
+  async close() {
+    assert(this.opened, 'WalletNode is not open.');
+    this.opened = false;
+
+    await this.handlePreclose();
+    await this.http.close();
+
+    await this.closePlugins();
+
+    this.rpc.wallet = null;
+
+    await this.wdb.close();
+    await this.handleClose();
+  }
 }
 
-Object.setPrototypeOf(WalletNode.prototype, Node.prototype);
-
-/**
- * Initialize the node.
- * @private
- */
-
-WalletNode.prototype.init = function init() {
-  this.wdb.on('error', err => this.error(err));
-  this.http.on('error', err => this.error(err));
-
-  this.loadPlugins();
-};
-
-/**
- * Open the node and all its child objects,
- * wait for the database to load.
- * @alias WalletNode#open
- * @returns {Promise}
- */
-
-WalletNode.prototype.open = async function open() {
-  assert(!this.opened, 'WalletNode is already open.');
-  this.opened = true;
-
-  await this.handlePreopen();
-  await this.wdb.open();
-
-  this.rpc.wallet = this.wdb.primary;
-
-  await this.openPlugins();
-
-  await this.http.open();
-  await this.handleOpen();
-
-  this.logger.info('Wallet node is loaded.');
-};
-
-/**
- * Close the node, wait for the database to close.
- * @alias WalletNode#close
- * @returns {Promise}
- */
-
-WalletNode.prototype.close = async function close() {
-  assert(this.opened, 'WalletNode is not open.');
-  this.opened = false;
-
-  await this.handlePreclose();
-  await this.http.close();
-
-  await this.closePlugins();
-
-  this.rpc.wallet = null;
-
-  await this.wdb.close();
-  await this.handleClose();
-};
-
 /*
  * Expose
  */

lib/wallet/walletkey.js

@@ -36,79 +36,6 @@ class WalletKey extends KeyRing {
     this.index = -1;
   }
 
-  /**
-   * Instantiate key ring from options.
-   * @param {Object} options
-   * @returns {WalletKey}
-   */
-
-  static fromOptions(options) {
-    return new this().fromOptions(options);
-  }
-
-  /**
-   * Instantiate wallet key from a private key.
-   * @param {Buffer} key
-   * @param {Boolean?} compressed
-   * @returns {WalletKey}
-   */
-
-  static fromPrivate(key, compressed) {
-    return new this().fromPrivate(key, compressed);
-  }
-
-  /**
-   * Generate a wallet key.
-   * @param {Boolean?} compressed
-   * @returns {WalletKey}
-   */
-
-  static generate(compressed) {
-    return new this().generate(compressed);
-  }
-
-  /**
-   * Instantiate wallet key from a public key.
-   * @param {Buffer} publicKey
-   * @returns {WalletKey}
-   */
-
-  static fromPublic(key) {
-    return new this().fromPublic(key);
-  }
-
-  /**
-   * Instantiate wallet key from a public key.
-   * @param {Buffer} publicKey
-   * @returns {WalletKey}
-   */
-
-  static fromKey(key, compressed) {
-    return new this().fromKey(key, compressed);
-  }
-
-  /**
-   * Instantiate wallet key from script.
-   * @param {Buffer} key
-   * @param {Script} script
-   * @returns {WalletKey}
-   */
-
-  static fromScript(key, script, compressed) {
-    return new this().fromScript(key, script, compressed);
-  }
-
-  /**
-   * Instantiate a wallet key from a serialized CBitcoinSecret.
-   * @param {Base58String} secret
-   * @param {Network?} network
-   * @returns {WalletKey}
-   */
-
-  static fromSecret(data, network) {
-    return new this().fromSecret(data, network);
-  }
-
   /**
    * Convert an WalletKey to a more json-friendly object.
    * @returns {Object}
@@ -130,26 +57,6 @@ class WalletKey extends KeyRing {
     };
   }
 
-  /**
-   * Instantiate an WalletKey from a jsonified transaction object.
-   * @param {Object} json - The jsonified transaction object.
-   * @returns {WalletKey}
-   */
-
-  static fromJSON(json) {
-    return new this().fromJSON(json);
-  }
-
-  /**
-   * Instantiate a wallet key from serialized data.
-   * @param {Buffer} data
-   * @returns {WalletKey}
-   */
-
-  static fromRaw(data) {
-    return new this().fromRaw(data);
-  }
-
   /**
    * Inject properties from hd key.
    * @private