43 lines
1.0 KiB
JavaScript
43 lines
1.0 KiB
JavaScript
var base58 = require('../lib/Base58').base58Check;
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var util = require('util');
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var EncodedData = require('./EncodedData');
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function VersionedData(version, payload) {
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VersionedData.super_.call(this, version, payload);
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if (typeof version != 'number') {
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return;
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};
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this.data = new Buffer(payload.length + 1);
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this.encoding('binary');
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this.version(version);
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this.payload(payload);
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};
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util.inherits(VersionedData, EncodedData);
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EncodedData.applyEncodingsTo(VersionedData);
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// get or set the version data (the first byte of the address)
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VersionedData.prototype.version = function(num) {
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if (num || (num === 0)) {
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this.doAsBinary(function() {
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this.data.writeUInt8(num, 0);
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});
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return num;
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}
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return this.as('binary').readUInt8(0);
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};
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// get or set the payload data (as a Buffer object)
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VersionedData.prototype.payload = function(data) {
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if (data) {
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this.doAsBinary(function() {
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data.copy(this.data, 1);
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});
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return data;
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}
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return this.as('binary').slice(1);
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};
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module.exports = VersionedData;
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