diffusion/src/node_modules/data/bytes-impl.js

Diffusion JavaScript client

var _implements = require('util/interface')._implements;
var Bytes = require('../../data/bytes');
var util = require('data/util');

module.exports = _implements(Bytes, function BytesImpl(buffer, offset, length) {
    util.assignInternals(this, buffer, offset, length);

    var self = this;

    this.length = function() {
        return self.$length;
    };

    this.asBuffer = function() {
        return buffer.slice(self.$offset, self.$offset + self.$length);
    };

    this.copyTo = function(target, tOffset) {
        tOffset = tOffset || 0;

        buffer.copy(target, tOffset, self.$offset, self.$offset + self.$length);
    };

    this.equals = function(bytes) {
        return this.equalBytes(bytes.$buffer, bytes.$offset, bytes.$length);
    };

    this.equalBytes = function(buffer, offset, length) {
        if (this.$length !== length) {
            return false;
        }

        var $buffer = this.$buffer;
        var $offset = this.$offset;

        if ($buffer === buffer && $offset === offset) {
            return true;
        }

        for (var i = 0; i < length; ++i) {
            if ($buffer[$offset + i] !== buffer[offset + i]) {
                return false;
            }
        }

        return true;
    };
});

module.exports.toString = function() {
    return "BytesImpl";
};