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"use strict";
module.exports = BufferReader;
// extends Reader
var Reader = require("./reader");
(BufferReader.prototype = Object.create(Reader.prototype)).constructor = BufferReader;
var util = require("./util/minimal");
/**
* Constructs a new buffer reader instance.
* @classdesc Wire format reader using node buffers.
* @extends Reader
* @constructor
* @param {Buffer} buffer Buffer to read from
*/
function BufferReader(buffer) {
Reader.call(this, buffer);
/**
* Read buffer.
* @name BufferReader#buf
* @type {Buffer}
*/
}
BufferReader._configure = function () {
/* istanbul ignore else */
if (util.Buffer)
BufferReader.prototype._slice = util.Buffer.prototype.slice;
};
/**
* @override
*/
BufferReader.prototype.string = function read_string_buffer() {
var len = this.uint32(); // modifies pos
return this.buf.utf8Slice
? this.buf.utf8Slice(this.pos, this.pos = Math.min(this.pos + len, this.len))
: this.buf.toString("utf-8", this.pos, this.pos = Math.min(this.pos + len, this.len));
};
/**
* Reads a sequence of bytes preceeded by its length as a varint.
* @name BufferReader#bytes
* @function
* @returns {Buffer} Value read
*/
BufferReader._configure();
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