minor.

lib/bcoin/chain.js

@@ -755,8 +755,10 @@ Chain.prototype._checkDuplicates = function _checkDuplicates(block, prev, callba
   if (this.isGenesis(block))
     return callback();
 
-  if (this.network.block.bip34height === -1 || height <= this.network.block.bip34height)
+  if (this.network.block.bip34height === -1
+      || height <= this.network.block.bip34height) {
     return this._findDuplicates(block, prev, callback);
+  }
 
   this.db.get(this.network.block.bip34height, function(err, entry) {
     if (err)

lib/bcoin/coin.js

@@ -59,7 +59,7 @@ Coin.prototype.fromOptions = function fromOptions(options) {
   this.hash = options.hash;
   this.index = options.index;
 
-  assert(typeof this.version === 'number');
+  assert(utils.isNumber(this.version));
   assert(utils.isNumber(this.height));
   assert(typeof this.value === 'number');
   assert(this.script instanceof bcoin.script);

lib/bcoin/script.js

@@ -24,37 +24,31 @@ var ScriptError = bcoin.errors.ScriptError;
  * Refers to the witness field of segregated witness transactions.
  * @exports Witness
  * @constructor
- * @param {Buffer[]|Buffer|NakedWitness} items - Array of
+ * @param {Buffer[]|NakedWitness} items - Array of
- * stack items or raw witness buffer.
+ * stack items.
  * @property {Buffer[]} items
  * @property {Script?} redeem
  * @property {Number} length
  */
 
-function Witness(items) {
+function Witness(options) {
-  if (items instanceof Witness)
+  if (options instanceof Witness)
-    return items;
+    return options;
 
   if (!(this instanceof Witness))
-    return new Witness(items);
+    return new Witness(options);
 
   this.items = [];
   this.redeem = null;
 
-  if (items)
+  if (options)
-    this.fromOptions(items);
+    this.fromOptions(options);
 }
 
-Witness.prototype.fromOptions = function fromOptions(items) {
+Witness.prototype.fromOptions = function fromOptions(options) {
-  if (items.items)
+  this.items = options.items || options;
-    items = items.items;
-
-  this.items = items;
-
   this.redeem = null;
-
   assert(Array.isArray(this.items));
-
   return this;
 };
 
@@ -1034,19 +1028,19 @@ Stack.isStack = function isStack(obj) {
  * @property {Number} length
  */
 
-function Script(raw) {
+function Script(options) {
-  if (raw instanceof Script)
+  if (options instanceof Script)
-    return raw;
+    return options;
 
   if (!(this instanceof Script))
-    return new Script(raw);
+    return new Script(options);
 
   this.raw = STACK_FALSE;
   this.code = [];
   this.redeem = null;
 
-  if (raw)
+  if (options)
-    this.fromOptions(raw);
+    this.fromOptions(options);
 }
 
 Script.prototype.fromOptions = function fromOptions(options) {
@@ -1066,7 +1060,6 @@ Script.prototype.fromOptions = function fromOptions(options) {
 
   this.raw = raw;
   this.code = code;
-  this.redeem = null;
 
   if (!this.raw) {
     assert(this.code);
@@ -1082,10 +1075,10 @@ Script.prototype.fromOptions = function fromOptions(options) {
   return this;
 };
 
-Script.fromOptions = function fromOptions(raw) {
+Script.fromOptions = function fromOptions(options) {
-  if (raw instanceof Script)
+  if (options instanceof Script)
-    return raw;
+    return options;
-  return new Script().fromOptions(raw);
+  return new Script().fromOptions(options);
 };
 
 /**

lib/bcoin/utils.js

@@ -644,47 +644,12 @@ utils.merge = function merge(target) {
 
 /**
  * Assertion.
+ * @function
  * @param {Boolean} value - Expression.
  * @param {String?} message - Optional error message.
  */
 
-utils.assert = function _assert(value, message) {
+utils.assert = assert;
-  if (!value) {
-    throw new assert.AssertionError({
-      message: message,
-      actual: value,
-      expected: true,
-      operator: '==',
-      stackStartFunction: _assert
-    });
-  }
-};
-
-utils.merge(utils.assert, assert);
-
-utils.assert.fatal = function fatal(value, message) {
-  var err;
-
-  if (!value) {
-    if (!message)
-      message = 'Assertion failed (fatal exception)';
-
-    err = new assert.AssertionError({
-      message: message,
-      actual: value,
-      expected: true,
-      operator: '==',
-      stackStartFunction: fatal
-    });
-
-    if (process.exit) {
-      console.error(err.stack + '');
-      process.exit(1);
-    } else {
-      throw err;
-    }
-  }
-};
 
 /**
  * Safely convert satoshis to a BTC string.