Decouple UInt160 from amount.js

src/core/account.js

@@ -381,6 +381,8 @@ Account._publicKeyToAddress = function(public_key) {
   }
 };
 
-exports.Account = Account;
+module.exports = {
+  Account
+};
 
 // vim:sw=2:sts=2:ts=8:et

src/core/amount.js

@@ -6,9 +6,10 @@
 const assert = require('assert');
 const extend = require('extend');
 const utils = require('./utils');
-const UInt160 = require('./uint160').UInt160;
 const Currency = require('./currency').Currency;
 const {XRPValue, IOUValue} = require('ripple-lib-value');
+const {isValidAddress} = require('ripple-address-codec');
+const {ACCOUNT_ONE, ACCOUNT_ZERO} = require('./constants');
 
 type Value = XRPValue | IOUValue;
 
@@ -21,7 +22,7 @@ function Amount(value = new XRPValue(NaN)) {
   this._value = value;
   this._is_native = true; // Default to XRP. Only valid if value is not NaN.
   this._currency = new Currency();
-  this._issuer = new UInt160();
+  this._issuer = 'NaN';
 }
 
 /**
@@ -105,7 +106,7 @@ Amount.NaN = function() {
 };
 
 Amount.from_components_unsafe = function(value: Value, currency: Currency,
-  issuer: UInt160, isNative: boolean
+  issuer: string, isNative: boolean
 ) {
   const result = new Amount(value);
   result._is_native = isNative;
@@ -402,7 +403,7 @@ Amount.prototype.equals = function(d, ignore_issuer) {
          && this._is_native === d._is_native
          && this._value.equals(d._value)
          && (this._is_native || (this._currency.equals(d._currency)
-              && (ignore_issuer || this._issuer.equals(d._issuer))));
+              && (ignore_issuer || this._issuer === d._issuer)));
 };
 
 // True if Amounts are valid and both native or non-native.
@@ -428,9 +429,8 @@ Amount.prototype.is_valid = function() {
 };
 
 Amount.prototype.is_valid_full = function() {
-  return this.is_valid()
-  && this._currency.is_valid()
-  && this._issuer.is_valid();
+  return this.is_valid() && this._currency.is_valid()
+    && isValidAddress(this._issuer) && this._issuer !== ACCOUNT_ZERO;
 };
 
 Amount.prototype.is_zero = function() {
@@ -532,7 +532,7 @@ Amount.prototype.parse_human = function(j, options) {
 };
 
 Amount.prototype.parse_issuer = function(issuer) {
-  this._issuer = UInt160.from_json(issuer);
+  this._issuer = issuer;
   return this;
 };
 
@@ -583,7 +583,7 @@ function(quality, counterCurrency, counterIssuer, opts) {
   const offset = parseInt(offset_hex, 16) - 100;
 
   this._currency = Currency.from_json(counterCurrency);
-  this._issuer = UInt160.from_json(counterIssuer);
+  this._issuer = counterIssuer;
   this._is_native = this._currency.is_native();
 
   if (this._is_native && baseCurrency.is_native()) {
@@ -643,7 +643,7 @@ function(quality, counterCurrency, counterIssuer, opts) {
 Amount.prototype.parse_number = function(n) {
   this._is_native = false;
   this._currency = Currency.from_json(1);
-  this._issuer = UInt160.from_json(1);
+  this._issuer = ACCOUNT_ONE;
   this._set_value(new IOUValue(n));
   return this;
 };
@@ -659,15 +659,15 @@ Amount.prototype.parse_json = function(j) {
       if (m) {
         this._currency = Currency.from_json(m[2]);
         if (m[3]) {
-          this._issuer = UInt160.from_json(m[3]);
+          this._issuer = m[3];
         } else {
-          this._issuer = UInt160.from_json('1');
+          this._issuer = 'NaN';
         }
         this.parse_value(m[1]);
       } else {
         this.parse_native(j);
         this._currency = Currency.from_json('0');
-        this._issuer = UInt160.from_json('0');
+        this._issuer = ACCOUNT_ZERO;
       }
       break;
 
@@ -686,9 +686,10 @@ Amount.prototype.parse_json = function(j) {
         // Parse the passed value to sanitize and copy it.
         this._currency.parse_json(j.currency, true); // Never XRP.
 
-        if (typeof j.issuer === 'string') {
-          this._issuer.parse_json(j.issuer);
+        if (typeof j.issuer !== 'string') {
+          throw new Error('issuer must be a string');
         }
+        this._issuer = j.issuer;
 
         this.parse_value(j.value);
       }
@@ -736,12 +737,7 @@ Amount.prototype.set_currency = function(c) {
 };
 
 Amount.prototype.set_issuer = function(issuer) {
-  if (issuer instanceof UInt160) {
-    this._issuer = issuer;
-  } else {
-    this._issuer = UInt160.from_json(issuer);
-  }
-
+  this._issuer = issuer;
   return this;
 };
 
@@ -939,7 +935,7 @@ Amount.prototype.to_human_full = function(options) {
   const opts = options || {};
   const value = this.to_human(opts);
   const currency = this._currency.to_human();
-  const issuer = this._issuer.to_json(opts);
+  const issuer = this._issuer;
   const base = value + '/' + currency;
   return this.is_native() ? base : (base + '/' + issuer);
 };
@@ -955,21 +951,21 @@ Amount.prototype.to_json = function() {
     this._currency.to_hex() : this._currency.to_json()
   };
 
-  if (this._issuer.is_valid()) {
-    amount_json.issuer = this._issuer.to_json();
+  if (isValidAddress(this._issuer)) {
+    amount_json.issuer = this._issuer;
   }
 
   return amount_json;
 };
 
-Amount.prototype.to_text_full = function(opts) {
+Amount.prototype.to_text_full = function() {
   if (!this.is_valid()) {
     return 'NaN';
   }
   return this._is_native
       ? this.to_human() + '/XRP'
       : this.to_text() + '/' + this._currency.to_json()
-        + '/' + this._issuer.to_json(opts);
+        + '/' + this._issuer;
 };
 
 // For debugging.
@@ -998,11 +994,8 @@ Amount.prototype.not_equals_why = function(d, ignore_issuer) {
     if (!this._currency.equals(d._currency)) {
       return 'Non-XRP currency differs.';
     }
-    if (!ignore_issuer && !this._issuer.equals(d._issuer)) {
-      return 'Non-XRP issuer differs: '
-      + d._issuer.to_json()
-      + '/'
-      + this._issuer.to_json();
+    if (!ignore_issuer && this._issuer !== d._issuer) {
+      return 'Non-XRP issuer differs: ' + d._issuer + '/' + this._issuer;
     }
   }
 };

src/core/constants.js

@@ -0,0 +1,6 @@
+'use strict';
+
+module.exports = {
+  ACCOUNT_ZERO: 'rrrrrrrrrrrrrrrrrrrrrhoLvTp',
+  ACCOUNT_ONE: 'rrrrrrrrrrrrrrrrrrrrBZbvji'
+};

src/core/meta.js

@@ -2,6 +2,8 @@ var extend  = require('extend');
 var utils = require('./utils');
 var UInt160 = require('./uint160').UInt160;
 var Amount  = require('./amount').Amount;
+var ACCOUNT_ZERO = require('./constants').ACCOUNT_ZERO;
+var {isValidAddress} = require('ripple-address-codec');
 
 /**
  * Meta data processing facility
@@ -154,8 +156,8 @@ Meta.prototype.getAffectedAccounts = function(from) {
       } else if (~Meta.AMOUNT_FIELDS_AFFECTING_ISSUER.indexOf(fieldName)) {
         var amount = Amount.from_json(field);
         var issuer = amount.issuer();
-        if (issuer.is_valid() && !issuer.is_zero()) {
-          accounts.push(issuer.to_json());
+        if (isValidAddress(issuer) && issuer !== ACCOUNT_ZERO) {
+          accounts.push(issuer);
         }
       }
     }
@@ -186,11 +188,11 @@ Meta.prototype.getAffectedBooks = function() {
     var paysKey = pays.currency().to_json();
 
     if (getsKey !== 'XRP') {
-      getsKey += '/' + gets.issuer().to_json();
+      getsKey += '/' + gets.issuer();
     }
 
     if (paysKey !== 'XRP') {
-      paysKey += '/' + pays.issuer().to_json();
+      paysKey += '/' + pays.issuer();
     }
 
     var key = getsKey + ':' + paysKey;

src/core/orderbookutils.js

@@ -29,8 +29,7 @@ function createAmount(value, currency_, counterparty_) {
     Currency.from_json(currency_);
 
   const counterparty = counterparty_ instanceof UInt160 ?
-    counterparty_ :
-    UInt160.from_json(counterparty_);
+    counterparty_.to_json() : counterparty_;
 
   return Amount.from_components_unsafe(new IOUValue(value),
     currency, counterparty, false);

src/core/serializedtypes.js

@@ -518,7 +518,7 @@ const STAmount = exports.Amount = new SerializedType({
       STCurrency.serialize(so, currency, true);
 
       // Issuer (160-bit hash)
-      so.append(amount.issuer().to_bytes());
+      so.append(UInt160.from_json(amount.issuer()).to_bytes());
     }
   },
   parse: function(so) {

src/core/transaction.js

@@ -14,6 +14,7 @@ const SerializedObject = require('./serializedobject').SerializedObject;
 const RippleError = require('./rippleerror').RippleError;
 const hashprefixes = require('./hashprefixes');
 const log = require('./log').internal.sub('transaction');
+const {isValidAddress} = require('ripple-address-codec');
 
 /**
  * @constructor Transaction
@@ -722,7 +723,7 @@ Transaction.prototype._setAmount = function(name, amount, options_) {
   if (!(isNative || parsedAmount.currency().is_valid())) {
     throw new Error(name + ' must have a valid currency');
   }
-  if (!(isNative || parsedAmount.issuer().is_valid())) {
+  if (!(isNative || isValidAddress(parsedAmount.issuer()))) {
     throw new Error(name + ' must have a valid issuer');
   }