github.com/igggame/nebulas-go@v2.1.0+incompatible/nf/nvm/test/ERC20.syntaxError.js (about)

     1  // Copyright (C) 2017 go-nebulas authors
     2  //
     3  // This file is part of the go-nebulas library.
     4  //
     5  // the go-nebulas library is free software: you can redistribute it and/or modify
     6  // it under the terms of the GNU General Public License as published by
     7  // the Free Software Foundation, either version 3 of the License, or
     8  // (at your option) any later version.
     9  //
    10  // the go-nebulas library is distributed in the hope that it will be useful,
    11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13  // GNU General Public License for more details.
    14  //
    15  // You should have received a copy of the GNU General Public License
    16  // along with the go-nebulas library.  If not, see <http://www.gnu.org/licenses/>.
    17  //
    18  
    19  'use strict';
    20  
    21  var StandardToken = function ({
    22      LocalContractStorage.defineProperties(this, {
    23          name: null,
    24          symbol: null,
    25          _totalSupply: null,
    26          totalIssued: null
    27      });
    28      LocalContractStorage.defineMapProperty(this, "balances");
    29  };
    30  
    31  StandardToken.prototype = {
    32      init: function (name, symbol, totalSupply) {
    33          this.name = name;
    34          this.symbol = symbol;
    35          this._totalSupply = totalSupply;
    36          this.totalIssued = 0;
    37      },
    38      totalSupply: function () {
    39          return this._totalSupply;
    40      },
    41      balanceOf: function (owner) {
    42          return this.balances.get(owner) || 0;
    43      },
    44      transfer: function (to, value) {
    45          var balance = this.balanceOf(msg.sender);
    46          if (balance < value) {
    47              return false;
    48          }
    49  
    50          var finalBalance = balance - value;
    51          this.balances.set(msg.sender, finalBalance);
    52          this.balances.set(to, this.balanceOf(to) + value);
    53          return true;
    54      },
    55      pay: function (msg, amount) {
    56          if (this.totalIssued + amount > this._totalSupply) {
    57              throw new Error("too much amount, exceed totalSupply");
    58          }
    59          this.balances.set(msg.sender, this.balanceOf(msg.sender) + amount);
    60          this.totalIssued += amount;
    61      }
    62  };
    63  
    64  module.exports = StandardToken;