/* eslint-disable node/no-deprecated-api */
var buffer = require("./buffer.js");

var Buffer = buffer.Buffer; // alternative to using Object.keys for old browsers

function copyProps(src, dst) {
  for (var key in src) {
    dst[key] = src[key];
  }
}

if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
  module.exports = buffer;
} else {
  // Copy properties from require('buffer')
  copyProps(buffer, exports);
  exports.Buffer = SafeBuffer;
}

function SafeBuffer(arg, encodingOrOffset, length) {
  return Buffer(arg, encodingOrOffset, length);
} // Copy static methods from Buffer


copyProps(Buffer, SafeBuffer);

SafeBuffer.from = function (arg, encodingOrOffset, length) {
  if (typeof arg === 'number') {
    throw new TypeError('Argument must not be a number');
  }

  return Buffer(arg, encodingOrOffset, length);
};

SafeBuffer.alloc = function (size, fill, encoding) {
  if (typeof size !== 'number') {
    throw new TypeError('Argument must be a number');
  }

  var buf = Buffer(size);

  if (fill !== undefined) {
    if (typeof encoding === 'string') {
      buf.fill(fill, encoding);
    } else {
      buf.fill(fill);
    }
  } else {
    buf.fill(0);
  }

  return buf;
};

SafeBuffer.allocUnsafe = function (size) {
  if (typeof size !== 'number') {
    throw new TypeError('Argument must be a number');
  }

  return Buffer(size);
};

SafeBuffer.allocUnsafeSlow = function (size) {
  if (typeof size !== 'number') {
    throw new TypeError('Argument must be a number');
  }

  return buffer.SlowBuffer(size);
};