util: drop all homemade polyfills.

lib/blockchain/chain.js

@@ -1943,7 +1943,7 @@ Chain.prototype.getProofTime = function getProofTime(to, from) {
   work = work.div(this.tip.getProof());
 
   if (work.bitLength() > 53)
-    return sign * util.MAX_SAFE_INTEGER;
+    return sign * Number.MAX_SAFE_INTEGER;
 
   return sign * work.toNumber();
 };

lib/http/client.js

@@ -646,7 +646,7 @@ HTTPClient.prototype.getWalletCoin = function getWalletCoin(id, account, hash, i
  */
 
 HTTPClient.prototype.send = function send(id, options) {
-  options = util.merge({}, options);
+  options = Object.assign({}, options);
   options.outputs = options.outputs || [];
 
   if (options.rate)
@@ -695,7 +695,7 @@ HTTPClient.prototype.setPassphrase = function setPassphrase(id, old, new_) {
  */
 
 HTTPClient.prototype.createTX = function createTX(id, options) {
-  options = util.merge({}, options);
+  options = Object.assign({}, options);
 
   if (options.rate)
     options.rate = Amount.btc(options.rate);
@@ -725,7 +725,7 @@ HTTPClient.prototype.sign = function sign(id, tx, options) {
   if (!options)
     options = {};
 
-  body = util.merge({}, options);
+  body = Object.assign({}, options);
   body.tx = toHex(tx);
 
   return this._post('/wallet/' + id + '/sign', body);

lib/mining/cpuminer.js

@@ -99,7 +99,7 @@ CPUMiner.prototype._close = async function close() {
 
 CPUMiner.prototype.start = function start() {
   assert(!this.running, 'Miner is already running.');
-  this._start().catch(util.nop);
+  this._start().catch(nop);
 };
 
 /**
@@ -571,6 +571,12 @@ CPUJob.prototype.pushTX = function pushTX(tx, view) {
   return this.attempt.pushTX(tx, view);
 };
 
+/*
+ * Helpers
+ */
+
+function nop() {}
+
 /*
  * Expose
  */

lib/net/pool.js

@@ -1186,7 +1186,7 @@ Pool.prototype.createInbound = function createInbound(socket) {
  */
 
 Pool.prototype.uid = function uid() {
-  var MAX = util.MAX_SAFE_INTEGER;
+  var MAX = Number.MAX_SAFE_INTEGER;
 
   if (this.id >= MAX - this.peers.size() - 1)
     this.id = 0;

lib/node/config.js

@@ -9,6 +9,8 @@
 var assert = require('assert');
 var fs = require('../utils/fs');
 var util = require('../utils/util');
+var os = require('os');
+var HOME = os.homedir();
 
 /**
  * Config Parser
@@ -25,7 +27,7 @@ function Config(module) {
 
   this.module = module;
   this.network = 'main';
-  this.prefix = util.HOME + '/.' + module;
+  this.prefix = HOME + '/.' + module;
 
   this.options = Object.create(null);
   this.data = Object.create(null);
@@ -531,7 +533,7 @@ Config.prototype.path = function path(key, fallback) {
 
   switch (value[0]) {
     case '~': // home dir
-      value = util.HOME + value.substring(1);
+      value = HOME + value.substring(1);
       break;
     case '@': // prefix
       value = this.prefix + value.substring(1);
@@ -591,11 +593,11 @@ Config.prototype.getPrefix = function getPrefix() {
 
   if (prefix) {
     if (prefix[0] === '~')
-      prefix = util.HOME + prefix.substring(1);
+      prefix = HOME + prefix.substring(1);
     return prefix;
   }
 
-  prefix = util.HOME + '/.' + this.module;
+  prefix = HOME + '/.' + this.module;
   network = this.str('network');
 
   if (network) {

lib/utils/encoding.js

@@ -14,14 +14,6 @@
 var BN = require('bn.js');
 var encoding = exports;
 
-/**
- * Max safe integer (53 bits).
- * @const {Number}
- * @default
- */
-
-encoding.MAX_SAFE_INTEGER = 0x1fffffffffffff;
-
 /**
  * An empty buffer.
  * @const {Buffer}
@@ -360,7 +352,7 @@ encoding._write64 = function _write64(dst, num, off, be) {
     num -= 1;
   }
 
-  enforce(num <= encoding.MAX_SAFE_INTEGER, off, 'Number exceeds 2^53-1');
+  enforce(num <= Number.MAX_SAFE_INTEGER, off, 'Number exceeds 2^53-1');
 
   lo = num % 0x100000000;
   hi = (num - lo) / 0x100000000;

lib/utils/ip.js

@@ -990,7 +990,7 @@ IP.isEqual = function isEqual(a, b) {
  */
 
 IP.getInterfaces = function _getInterfaces(name, family) {
-  var interfaces = getInterfaces();
+  var interfaces = os.networkInterfaces();
   var keys = Object.keys(interfaces);
   var result = [];
   var i, j, key, items, details, type, raw;
@@ -1081,16 +1081,6 @@ function Address(host, port, type, hostname, raw) {
   this.raw = raw || ZERO_IP;
 }
 
-/*
- * Helpers
- */
-
-function getInterfaces() {
-  if (os.unsupported)
-    return {};
-  return os.networkInterfaces();
-}
-
 /*
  * Expose
  */

lib/utils/util.js

@@ -9,7 +9,6 @@
 
 var assert = require('assert');
 var nodeUtil = require('util');
-var os = require('os');
 
 /**
  * @exports utils/util
@@ -17,25 +16,6 @@ var os = require('os');
 
 var util = exports;
 
-/**
- * The home directory.
- * @const {String}
- */
-
-util.HOME = '/';
-
-if (os.homedir)
-  util.HOME = os.homedir();
-
-/**
- * Global NOP function.
- * @type function
- * @static
- * @method
- */
-
-util.nop = function() {};
-
 /**
  * Clone a buffer.
  * @param {Buffer} data
@@ -135,39 +115,6 @@ util.revHex = function revHex(data) {
   return out;
 };
 
-/**
- * Shallow merge between multiple objects.
- * @param {Object} target
- * @param {...Object} args
- * @returns {Object} target
- */
-
-util.merge = function merge(target) {
-  var i, j, obj, keys, key;
-
-  for (i = 1; i < arguments.length; i++) {
-    obj = arguments[i];
-    keys = Object.keys(obj);
-    for (j = 0; j < keys.length; j++) {
-      key = keys[j];
-      target[key] = obj[key];
-    }
-  }
-
-  return target;
-};
-
-if (Object.assign)
-  util.merge = Object.assign;
-
-/**
- * Max safe integer (53 bits).
- * @const {Number}
- * @default
- */
-
-util.MAX_SAFE_INTEGER = 0x1fffffffffffff;
-
 /**
  * Test whether a number is below MAX_SAFE_INTEGER.
  * @param {Number} value
@@ -175,7 +122,7 @@ util.MAX_SAFE_INTEGER = 0x1fffffffffffff;
  */
 
 util.isSafeInteger = function isSafeInteger(value) {
-  return value >= -0x1fffffffffffff && value <= 0x1fffffffffffff;
+  return Number.isSafeInteger(value);
 };
 
 /**
@@ -363,6 +310,8 @@ util.inspectify = function inspectify(obj, color) {
 /**
  * Format a string.
  * @function
+ * @param {...String} args
+ * @returns {String}
  */
 
 util.fmt = nodeUtil.format;
@@ -380,7 +329,7 @@ util.format = function format(args, color) {
 
   return typeof args[0] === 'object'
     ? util.inspectify(args[0], color)
-    : nodeUtil.format.apply(nodeUtil, args);
+    : util.fmt.apply(util, args);
 };
 
 /**
@@ -567,33 +516,12 @@ util.mb = function mb(size) {
  */
 
 util.inherits = function inherits(child, parent) {
-  var f;
-
   child.super_ = parent;
-
+  Object.setPrototypeOf(child.prototype, parent.prototype);
-  if (Object.setPrototypeOf) {
+  Object.defineProperty(child.prototype, 'constructor', {
-    Object.setPrototypeOf(child.prototype, parent.prototype);
+    value: child,
-    Object.defineProperty(child.prototype, 'constructor', {
+    enumerable: false
-      value: child,
+  });
-      enumerable: false
-    });
-    return;
-  }
-
-  if (Object.create) {
-    child.prototype = Object.create(parent.prototype, {
-      constructor: {
-        value: child,
-        enumerable: false
-      }
-    });
-    return;
-  }
-
-  f = function() {};
-  f.prototype = parent.prototype;
-  child.prototype = new f();
-  child.prototype.constructor = child;
 };
 
 /**

lib/workers/master.js

@@ -110,9 +110,9 @@ Master.prototype._initChildProcess = function _initChildProcess() {
   });
 
   // Nowhere to send these errors:
-  process.stdin.on('error', util.nop);
+  process.stdin.on('error', nop);
-  process.stdout.on('error', util.nop);
+  process.stdout.on('error', nop);
-  process.stderr.on('error', util.nop);
+  process.stderr.on('error', nop);
 
   process.on('uncaughtException', function(err) {
     self.send(new packets.ErrorPacket(err));
@@ -265,6 +265,12 @@ Master.prototype.handlePacket = function handlePacket(packet) {
   }
 };
 
+/*
+ * Helpers
+ */
+
+function nop() {}
+
 /*
  * Expose
  */

lib/workers/workerpool.js

@@ -48,7 +48,7 @@ function WorkerPool(options) {
 
   this.set(options);
 
-  this.on('error', util.nop);
+  this.on('error', nop);
 }
 
 util.inherits(WorkerPool, EventEmitter);
@@ -547,7 +547,7 @@ Worker.prototype._initChildProcess = function _initChildProcess() {
   var self = this;
   var file = process.argv[0];
   var argv = [__dirname + '/worker.js'];
-  var env = util.merge({}, process.env, this.env);
+  var env = Object.assign({}, process.env, this.env);
   var options = { stdio: 'pipe', env: env };
 
   this.child = cp.spawn(file, argv, options);
@@ -887,12 +887,11 @@ PendingJob.prototype.reject = function reject(err) {
  */
 
 function getCores() {
-  if (os.unsupported)
+  return Math.max(2, os.cpus().length);
-    return 2;
-
-  return Math.max(1, os.cpus().length);
 }
 
+function nop() {}
+
 /*
  * Default Pool
  */

package.json

@@ -67,14 +67,13 @@
     "webpack": "webpack"
   },
   "browser": {
-    "bcoin-native": "./browser/empty.js",
     "child_process": "./browser/empty.js",
     "crypto": "./browser/empty.js",
     "dgram": "./browser/empty.js",
     "dns": "./browser/empty.js",
     "fs": "./browser/empty.js",
     "net": "./browser/empty.js",
-    "os": "./browser/empty.js",
+    "bcoin-native": "./browser/empty.js",
     "secp256k1": "./browser/empty.js",
     "socket.io": "./browser/empty.js",
     "./lib/bcoin": "./lib/bcoin-browser.js",