do not cache input/output type.

lib/bcoin/input.js

@@ -204,8 +204,6 @@ function Input(options) {
   this.witness = new bcoin.witness();
   this.coin = null;
   this.mutable = false;
-
-  this._type = null;
   this._address = null;
 
   if (options)
@@ -267,18 +265,11 @@ Input.prototype.getType = function getType() {
   if (this.coin)
     return this.coin.getType();
 
-  if (this._type)
-    return this._type;
-
   if (this.witness.items.length > 0)
     type = this.witness.getInputType();
-
-  if (!type || type === 'unknown')
+  else
     type = this.script.getInputType();
 
-  if (!this.mutable)
-    this._type = type;
-
   return type;
 };
 
@@ -295,18 +286,12 @@ Input.prototype.getRedeem = function getRedeem() {
     return;
 
   if (!this.coin) {
-    if (this.script.isScripthashInput()) {
-      redeem = this.script.getRedeem();
-
-      if (redeem && redeem.isWitnessScripthash())
-        redeem = this.witness.getRedeem();
-
-      return redeem;
-    }
-
     if (this.witness.isScripthashInput())
       return this.witness.getRedeem();
 
+    if (this.script.isScripthashInput())
+      return this.script.getRedeem();
+
     return;
   }
 
@@ -360,17 +345,17 @@ Input.prototype.getAddress = function getAddress() {
   if (this.coin)
     return this.coin.getAddress();
 
-  if (this._address)
-    return this._address;
+  address = this._address;
 
-  if (this.witness.items.length > 0)
-    address = this.witness.getInputAddress();
+  if (!address) {
+    if (this.witness.items.length > 0)
+      address = this.witness.getInputAddress();
+    else
+      address = this.script.getInputAddress();
 
-  if (!address)
-    address = this.script.getInputAddress();
-
-  if (!this.mutable)
-    this._address = address;
+    if (!this.mutable)
+      this._address = address;
+  }
 
   return address;
 };

lib/bcoin/output.js

@@ -31,8 +31,6 @@ function Output(options) {
   this.value = 0;
   this.script = new bcoin.script();
   this.mutable = false;
-
-  this._type = null;
   this._address = null;
 
   if (options)
@@ -79,17 +77,7 @@ Output.fromOptions = function fromOptions(options) {
  */
 
 Output.prototype.getType = function getType() {
-  var type;
-
-  if (this._type)
-    return this._type;
-
-  type = this.script.getType();
-
-  if (!this.mutable)
-    this._type = type;
-
-  return type;
+  return this.script.getType();
 };
 
 /**
@@ -98,15 +86,13 @@ Output.prototype.getType = function getType() {
  */
 
 Output.prototype.getAddress = function getAddress() {
-  var address;
+  var address = this._address;
 
-  if (this._address)
-    return this._address;
-
-  address = this.script.getAddress();
-
-  if (!this.mutable)
-    this._address = address;
+  if (!address) {
+    address = this.script.getAddress();
+    if (!this.mutable)
+      this._address = address;
+  }
 
   return address;
 };

lib/bcoin/script.js

@@ -61,7 +61,6 @@ Witness.prototype.__defineSetter__('length', function(length) {
 
 Witness.prototype.fromOptions = function fromOptions(options) {
   this.items = options.items || options;
-  this.redeem = null;
   assert(Array.isArray(this.items));
   return this;
 };