node-opcua / node-opcua / 22636309940

/***

 * @module node-opcua-buffer-utils

 */

//

// note: new Buffer(size)#  is deprecated since: v6.0. and is replaced with Buffer.allocUnsafe

//       to ensure backward compatibility we have to replace

//       new Buffer(size) with createFastUninitializedBuffer(size)

//

//       Buffer.alloc and Buffer.allocUnsafe have been introduced in nodejs 5.1.0

//  in node 0.11 new Buffer

//

// tslint:disable-next-line:ban-types

export const createFastUninitializedBuffer = Buffer.allocUnsafe;

/**

 * turn a string make of hexadecimal bytes into a buffer

 *

 * @example

 *     const buffer = makeBuffer("BE EF");

 *

 * @param listOfBytes

 * @return {Buffer}

 */

export function makeBuffer(listOfBytes: string): Buffer {

    const l = listOfBytes.split(" ");

    const b = exports.createFastUninitializedBuffer(l.length);

    let i = 0;

    l.forEach((value) => {

        b.writeUInt8(parseInt(value, 16), i);

        i += 1;

    });

    return b;

}