implement Script.buildPublicKeyHashOut()

lib/script.js

@@ -3,6 +3,8 @@
 var BufferReader = require('./encoding/bufferreader');
 var BufferWriter = require('./encoding/bufferwriter');
 var Opcode = require('./opcode');
+var Address = require('./address');
+var PublicKey = require('./publickey');
 
 var Script = function Script(from) {
   if (!(this instanceof Script)) {
@@ -445,8 +447,16 @@ Script.buildMultisigOut = function(pubkeys, m) {
  * address or public key
  */
 Script.buildPublicKeyHashOut = function(to) {
-  console.log(to);
-  return new Script();
+  if (to instanceof PublicKey) {
+    to = to.toAddress();
+  }
+  var s = new Script();
+  s.add(Opcode('OP_DUP'))
+    .add(Opcode('OP_HASH160'))
+    .add(to.hashBuffer)
+    .add(Opcode('OP_EQUALVERIFY'))
+    .add(Opcode('OP_CHECKSIG'));
+  return s;
 };
 
 /**

test/script.js

@@ -404,21 +404,21 @@ describe('Script', function() {
         var address = Address.fromString('1NaTVwXDDUJaXDQajoa9MqHhz4uTxtgK14');
         var s = Script.buildPublicKeyHashOut(address);
         should.exist(s);
-        s.toString().should.equal('OP_DUP OP_HASH160 ecae7d092947b7ee4998e254aa48900d26d2ce1d OP_EQUALVERIFY OP_CHECKSIG');
+        s.toString().should.equal('OP_DUP OP_HASH160 20 0xecae7d092947b7ee4998e254aa48900d26d2ce1d OP_EQUALVERIFY OP_CHECKSIG');
         s.isPublicKeyHashOut().should.equal(true);
       });
       it('should create script from testnet address', function() {
         var address = Address.fromString('mxRN6AQJaDi5R6KmvMaEmZGe3n5ScV9u33');
         var s = Script.buildPublicKeyHashOut(address);
         should.exist(s);
-        s.toString().should.equal('OP_DUP OP_HASH160 b96b816f378babb1fe585b7be7a2cd16eb99b3e4 OP_EQUALVERIFY OP_CHECKSIG');
+        s.toString().should.equal('OP_DUP OP_HASH160 20 0xb96b816f378babb1fe585b7be7a2cd16eb99b3e4 OP_EQUALVERIFY OP_CHECKSIG');
         s.isPublicKeyHashOut().should.equal(true);
       });
       it('should create script from public key', function() {
         var pubkey = new PublicKey('022df8750480ad5b26950b25c7ba79d3e37d75f640f8e5d9bcd5b150a0f85014da');
         var s = Script.buildPublicKeyHashOut(pubkey);
         should.exist(s);
-        s.toString().should.equal('OP_DUP OP_HASH160 9674af7395592ec5d91573aa8d6557de55f60147 OP_EQUALVERIFY OP_CHECKSIG');
+        s.toString().should.equal('OP_DUP OP_HASH160 20 0x9674af7395592ec5d91573aa8d6557de55f60147 OP_EQUALVERIFY OP_CHECKSIG');
         s.isPublicKeyHashOut().should.equal(true);
       });
     });