56 lines
1.4 KiB
JavaScript
56 lines
1.4 KiB
JavaScript
/**
|
|
* @license Apache-2.0
|
|
*
|
|
* Copyright (c) 2018 The Stdlib Authors.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
'use strict';
|
|
|
|
// MODULES //
|
|
|
|
var isBuffer = require( '@stdlib/assert/is-buffer' );
|
|
var Buffer = require( './../../ctor' );
|
|
|
|
|
|
// MAIN //
|
|
|
|
/**
|
|
* Copies buffer data to a new `Buffer` instance.
|
|
*
|
|
* @param {Buffer} buffer - buffer from which to copy
|
|
* @throws {TypeError} must provide a `Buffer` instance
|
|
* @returns {Buffer} new `Buffer` instance
|
|
*
|
|
* @example
|
|
* var fromArray = require( '@stdlib/buffer/from-array' );
|
|
*
|
|
* var b1 = fromArray( [ 1, 2, 3, 4 ] );
|
|
* // returns <Buffer>
|
|
*
|
|
* var b2 = fromBuffer( b1 );
|
|
* // returns <Buffer>
|
|
*/
|
|
function fromBuffer( buffer ) {
|
|
if ( !isBuffer( buffer ) ) {
|
|
throw new TypeError( 'invalid argument. Must provide a Buffer. Value: `' + buffer + '`' );
|
|
}
|
|
return Buffer.from( buffer );
|
|
}
|
|
|
|
|
|
// EXPORTS //
|
|
|
|
module.exports = fromBuffer;
|